Leaving
Level 1 · WatchTue 10 Nov
Watch on 68 km between Wellawaya and Bandarawela
Around Wellawaya and Ella, km 139–209.
You reach it about Tue 11:05, 2 h 10 min after leaving, and are through it by Tue 12:50.
NBRI’s bulletin is valid until Tue 20:00, so it covers that time.
NBRI’s advice, as issued
Since the rainfall within the past 24 hours has exceeded 75mm, if the rain continues, be watchful on the possibility of landslides, slope failures, rock falls, cutting failures and ground subsidence.
NBRI, issued Mon 9 Nov, 20:00 · valid to Tue 10 Nov, 20:00lankawatch.org
Your road · 257 km~5 h 30 min
NBRI WatchNot listedOutside NBRI areaRiver crossingRain gaugeNo report
- Galle to Thihagoda
Not listedkm 0–56 - Outside NBRI’s landslide area: the bulletin says nothing herekm 56–94
- Not listedkm 94–96
- Outside NBRI’s landslide area: the bulletin says nothing herekm 96–136
- Not listedkm 136–140
- Wellawaya to Ella
Watchkm 140–209 - Bandarawela to Nuwara Eliya
Not listedkm 209–257
LandslideWatch1 stretch · NBRI’s adviceRainModerate rain, up to 12.2 mm in 24 hLast 3 days, satellite: About 1–2 days a month are this wet hereWeatherShowers or thundershowers after 1.00p.mGalle 31° / 24° · Nuwara Eliya 22° / 13°Rivers23 crossingsThalgahagoda: Alert level · steady · Gin Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Walawe Ganga: Rare here (1–2 days a month)
Level 1 · WatchTue 10 Nov
Watch on 123 km between Kaduwela and Nuwara Eliya
Around Warakapola and Kegalle, km 35–46, km 52–68, km 157–161 and 3 more.
You reach it about Tue 09:30, 40 min after leaving, and are through it by Tue 14:35.
NBRI’s bulletin is valid until Tue 20:00, so it covers that time.
NBRI’s advice, as issued
Since the rainfall within the past 24 hours has exceeded 75mm, if the rain continues, be watchful on the possibility of landslides, slope failures, rock falls, cutting failures and ground subsidence.
NBRI, issued Mon 9 Nov, 20:00 · valid to Tue 10 Nov, 20:00lankawatch.org
Your road · 279 km~6 h
NBRI WatchNot listedRiver crossingRain gaugeNo report
- Galle
Not listedkm 0–36 - Watchkm 36–45
- Not listedkm 45–52
- Watchkm 52–68
- Kaduwela to Pasyala
Not listedkm 68–164 - Warakapola
Watchkm 164–176 - near Kegalle
Not listedkm 176–181 - Kegalle
Watchkm 181–190 - near Kegalle
Not listedkm 190–195 - Gampola to Kothmale
Watchkm 195–271 - Nuwara Eliya
Not listedkm 271–279
LandslideWatch6 stretches · NBRI’s adviceRainModerate rain, up to 37.4 mm in 24 hLast 3 days, satellite: About 1–2 days a month are this wet hereWeatherShowers or thundershowers after 1.00p.mGalle 31° / 24° · Nuwara Eliya 22° / 13°Rivers26 crossingsBaddegama: Minor flood level · rising · Gin Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month)
Level 2 · AlertTue 10 Nov
Alert on 31 km between Puwakpitiya and Ginigathhena
Around Dehiowita and Ginigathhena, km 140–155, km 178–197.
Also: Watch on 102 km between Homagama and Nawalapitiya
You reach it about Tue 11:25, 2 h 30 min after leaving, and are through it by Tue 13:05.
NBRI’s bulletin is valid until Tue 20:00, so it covers that time.
NBRI’s advice, as issued
Since the rainfall within the past 24 hours has exceeded 100 mm, if the rains continue, be on alert on the possibility of landslides, slope failures, rock falls, cut failures and ground subsidence, being ready to evacuate to a safe location if the need arises.
NBRI, issued Mon 9 Nov, 20:00 · valid to Tue 10 Nov, 20:00lankawatch.org
Your road · 261 km~6 h 20 min
NBRI AlertNBRI WatchNot listedRiver crossingRain gaugeNo report
- Galle
Not listedkm 0–32 - Watchkm 32–41
- Not listedkm 41–48
- Watchkm 48–63
- Homagama to Meegoda
Not listedkm 63–114 - Meepe to Puwakpitiya
Watchkm 114–140 - Dehiowita
Alertkm 140–154 - Yatiyantota to Kithulgala
Watchkm 154–179 - Ginigathhena
Alertkm 179–196 - Nawalapitiya
Watchkm 196–224 - Talawakele to Nuwara Eliya
Not listedkm 224–261
LandslideAlert7 stretches · NBRI’s adviceRainHeavy rain, up to 126.5 mm in 24 hLast 3 days, satellite: Only a few days a year are this wet here · Last this wet in Dehiovita: November 2025WeatherShowers or thundershowers after 1.00p.mGalle 31° / 24° · Nuwara Eliya 22° / 13°Rivers29 crossingsBaddegama: Minor flood level · rising · Gin Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month)
Next update usually today by 17:45.
Before you go
We don’t know about road closures or damage. Be cautious on the way, especially in the hills in rain.
About the Galle–Nuwara Eliya road
The fastest road we know from Galle to Nuwara Eliya is 257 km, about 5 h 30 min, via Imaduwa, Wellawaya.
Main roads on it: Southern Expressway (104 km), Hambantota-Wellawaya Road (45 km), Wellawaya-Ella-Kumbalwela Road (30 km).
We show 3 roads between them, fastest first.
DS divisions on this road
It passes through 24 DS divisions in 7 districts, in travel order:
- Galle Four Gravets
- Akmeemana
- Imaduwa
- Welipitiya
- Malimbada
- Thihagoda
- Devinuwara
- Kirinda Puhulwella
- Beliatta
- Tangalle
- Weeraketiya
- Angunakolapelessa
- Ambalantota
- Embilipitiya
- Sooriyawewa
- Hambantota
- Lunugamvehera
- Thanamalvila
- Wellawaya
- Ella
- Bandarawela
- Haputale
- Welimada
- Nuwara Eliya
Past NBRI bulletins
Most often listed on this road, in the 41 NBRI bulletins we have passed on since Sun 20 Sept: Haputale (10), Ella (8), Nuwara Eliya (5).
A record of past bulletins, not a forecast. Not being listed doesn’t mean safe.
Steep terrain
About 14 km of it runs through steep terrain (slopes over 30° beside the road). The longest stretch is near Ella.
Terrain beside the road, from a satellite elevation model: not the road’s gradient and not a landslide hazard rating.
How to read this
- Not an official service. NBRI’s warnings are passed on as issued.
- Rain levels compare each division with its own satellite record since 2000. Satellites can miss heavy local downpours.
- Gauge sources: Department of Meteorology and Irrigation Department gauge readings, passed on as published. Met gauge sites are approximate. Compared with each division's own satellite record since 2000. This is not a warning and does not replace NBRI's levels. Satellites can miss heavy local downpours, so it never means a road is safe. Satellite data up to 10 Nov, 03:30. Checked Tue 10 Nov, 09:00.
Was this page useful?Thanks, noted.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Wellawaya | Watch | 140 |
| Ella | Watch | 186 |
Rain on route
×Moderate rain, up to 12.2 mm in 24 h
Rain gauges near your route
12345678910111213141516171819202122
0257 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 1 Galle, 0.7 mm, dry
- 6 Moraketiya, ≥ 12.1 mm, moderate rain or more (incomplete day)
- 7 Mattala, 12.2 mm, moderate rain
- 8 Thanamalwila, ≥ 5.7 mm, light rain or more (incomplete day)
- 10 Wellawaya, ≥ 8.5 mm, light rain or more (incomplete day)
- 15 Bandarawela, 4.7 mm, light rain
- 22 Nuwara Eliya, 9.4 mm, light rain
15 gauges not reporting.
Gauge coverage: most of the route.
NBRI's warning stays in force after rain eases.
Satellite estimate
- Last 3 days: among the wettest 5% of 3-day periods since 2000 in Embilipitiya, Nuwara Eliya.
Rain outlook (computer model) · Next day: Chance of a rare wet day
- Next day: a chance of a wet day of the kind that comes about 1–2 days a month in Embilipitiya, Sooriyawewa, Hambantota, Lunugamvehera +7 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 11 Nov, 05:30)
- Next 3 days: a chance of a wet day of the kind that comes about 1–2 days a month in Weeraketiya, Angunakolapelessa, Ambalantota, Embilipitiya +10 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 13 Nov, 05:30)
- "Not signalled" never means dry or safe. This is a computer model, not a warning, and it never changes NBRI's levels. Like the satellite, it reads hill-country rain low and can miss heavy local downpours.
- ECMWF ensemble forecast (open data, CC BY 4.0), run 9 Nov, 17:30, compared with each division's own satellite record.
Weather forecast (Met Dept)
×No advisory for this road
- No Department of Meteorology advisory is in force for Galle, Matara, Hambantota, Ratnapura, Moneragala, Badulla and Nuwara Eliya.
- Forecast issued 10 Nov, 05:30
- Showers or thundershowers will occur at times in the Northern province and in Trincomalee district.
- Showers or thundershowers will occur elsewhere in the island after 1.00 p.m.
- Covers Ratnapura, Nuwara Eliya, Badulla, Moneragala, Galle and Matara on this road: Heavy falls above 100mm are likely at some places in Western, Sabaragamuwa, Central and Uva provinces and in Galle and Matara districts.
- Covers Galle, Hambantota and Matara on this road: Showers may occur in the coastal areas of the Southern Province during the morning.
- The general public is kindly requested to take adequate precautions to minimize damage caused by temporary localized strong winds and lightning during thundershowers.
- Covers Ratnapura, Nuwara Eliya, Badulla, Moneragala, Galle and Matara on this road: Misty conditions can be expected at some places in Western, Sabaragamuwa, Central and Uva provinces and in Galle, Matara and Kurunegala districts during the early hours of the morning.
- Forecast for the main cities, Tuesday, 10 November 2026 (issued 9 Nov, 16:00)
- Galle: Showers or thundershowers after 1.00p.m. Max 31°C, min 24°C.
- Nuwara Eliya: Showers or thundershowers after 1.00p.m. Max 22°C, min 13°C.
- A forecast never lowers or replaces the NBRI landslide warning above.
- Forecast and advisories by the Department of Meteorology, Sri Lanka, as issued. LankaWatch is not an official service.
Rivers and catchments
×Crosses 19 named rivers · 14 basins · Gin Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Walawe Ganga: Rare here (1–2 days a month) · Alert level
Gin Ganga · P2 · Koggala Lake …
ThalgahagodaAlert level · River level 1.65 mDepartment’s thresholds: Alert 1.4, minor flood 1.7, major flood 2.8 m
River basins along this road
- km 0–1 · Gin Ganga basin
- km 1–6 · P2 basin
- km 6–14 · Gin Ganga basin
- km 14–17 · Koggala Lake basin
- km 17–34 · Polwatta Ganga basin
- km 34–56 · Nilwala Ganga basin
- km 56–62 · Seenimodara Oya basin
- km 62–69 · Kirama Oya basin
- km 69–76 · Rekawa Oya basin
- km 76–83 · Urubokka Ganga basin
- km 83–92 · Kachigal Aru basin
- km 92–110 · Walawe Ganga basin
- km 110–122 · Malala Oya basin
- km 122–200 · Kirindi Oya basin
- km 200–257 · Mahaweli Ganga basin
Satellite rain over these basins
- Gin Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Walawe Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Nilwala Ganga basin · Last 3 days: Unusual here (3 days a month)
- Urubokka Ganga basin · Last 3 days: Unusual here (3 days a month)
- Kachigal Aru basin · Last 3 days: Unusual here (3 days a month)
- Mahaweli Ganga basin · Last 3 days: Unusual here (3 days a month)
A whole-basin satellite average against that basin’s own record since 2000, not the area upstream of any one point. Satellites under-read hill rain. Not a warning.
Where this road crosses a river or stream
- km 26 · Polwatta Ganga
166 km² drain to this point · rain over that area, Last 24 hours: Unusual here (3 days a month) - km 42 · Nilwala Ganga · flows south
659 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month)
Thalgahagoda, an Irrigation Department gauge 2.6 km upstream (655 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): no complete 24-hour total (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 09:02.
River level 1.65 m · Alert level · steady over about 3 hours (Department’s thresholds: Alert 1.4, minor flood 1.7, major flood 2.8 m) - km 45 · Kanduwela Ela (Nilwala Ganga basin)
35 km² drain to this point - km 60 · Sinimodara Oya · flows east
20 km² drain to this point - km 66 · Kirama Oya · flows east
115 km² drain to this point - km 96 · Walawe Ganga · flows south-east
2,201 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Moraketiya, an Irrigation Department gauge 13.9 km upstream (1,541 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): at least 12.1 mm in the 24 hours to 10 Nov, 08:30 (2 hourly readings missing); 0 mm in the 3 hours to 10 Nov, 09:03.
River level 3.02 m · Alert level · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 5, major flood 7 m) - km 103 · Mahakadawala Ara (Walawe Ganga basin) · flows south-west
23 km² drain to this point - km 103 · Mahaweligada Ara (Walawe Ganga basin) · flows south-west
23 km² drain to this point - km 108 · Maha Ara (Walawe Ganga basin) · flows south-east
0.1 km² drain to this point - km 114 · Malala Oya · flows south
256 km² drain to this point - km 133 · Kirindi Oya · flows south-east
2.0 km² drain to this point
Thanamalwila, an Irrigation Department gauge 9.3 km upstream (696 km² upstream · rain over that area, Last 24 hours: Unusual here (3 days a month)): at least 5.7 mm in the 24 hours to 9 Nov, 08:30 (2 hourly readings missing); 0 mm in the 3 hours to 10 Nov, 08:07.
River level 2.06 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 4, minor flood 5, major flood 5.5 m) - km 147 · Kuda Oya (Kirindi Oya basin) · flows east
300 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month)
Kuda Oya, an Irrigation Department gauge 0.5 km upstream (299 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): no complete 24-hour total (2 hourly readings missing); 0 mm in the 3 hours to 10 Nov, 09:02.
River level 1.85 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 6.9, minor flood 8.4, major flood 8.8 m) - km 162 · Kirindi Oya · flows south
233 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month)
Wellawaya, an Irrigation Department gauge 6.6 km upstream (179 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): at least 8.5 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 09:03.
River level 1.66 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 4.4, minor flood 5.4, major flood 5.9 m) - km 163 · Dambakola Ara (Kirindi Oya basin) · flows south-east
3.1 km² drain to this point - km 165–167 · Kirindi Oya · 3 crossings · flows south
0.1 km² drain to this point
Wellawaya, an Irrigation Department gauge 1.1 km upstream (179 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): at least 8.5 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 09:03.
River level 1.66 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 4.4, minor flood 5.4, major flood 5.9 m) - km 170 · Galamola Ara (Kirindi Oya basin) · flows south-east
6.2 km² drain to this point - km 173 · Radapola Oya (Kirindi Oya basin) · flows south-east
16 km² drain to this point - km 175–180 · Kirindi Oya · 4 crossings · flows south-west
89 km² drain to this point
Wellawaya, an Irrigation Department gauge 15.6 km downstream (179 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): at least 8.5 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 09:03.
River level 1.66 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 4.4, minor flood 5.4, major flood 5.9 m) - km 178 · Kunapad Ara (Kirindi Oya basin) · flows south
98 km² drain to this point - km 196–198 · Kirindi Oya · 4 crossings · flows east
18 km² drain to this point - km 206 · Badulu Oya (Mahaweli Ganga basin) · 2 crossings · flows north
3.0 km² drain to this point - km 218–220 · Uma Oya (Mahaweli Ganga basin) · 4 crossings · flows north
155 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month) - km 232–233 · Dougolla Oya (Mahaweli Ganga basin) · 3 crossings · flows north
62 km² drain to this point
And 1 more unnamed stream on our map
Where this road runs beside a river
- km 161–163 · beside the Kirindi Oya
- km 165–166 · beside the Kirindi Oya
- km 196–198 · beside the Kirindi Oya
- km 217–218 · beside the Uma Oya
Rivers and basins come from our own map of Sri Lanka’s river network. Flow direction, where shown, is worked out from the height of the land. This is orientation only, not a flood warning.
The area draining to a crossing is worked out from a terrain model (about 90 m cells) and is approximate. The rain over it is the satellite average for that same area, against its own record since 2000. Areas under about 150 km² are smaller than the satellite can see, so they show no rain.
River levels are the Irrigation Department’s own readings at its gauge, against its own thresholds. This is not a flood warning: flood warnings come from the Irrigation Department and DMC.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Karandeniya | Watch | 36 |
| Elpitiya | Watch | 39 |
| Walallavita | Watch | 52 |
| Mathugama | Watch | 59 |
| Warakapola | Watch | 157 |
| Kegalle | Watch | 181 |
| Mawanella | Watch | 195 |
| Yatinuwara | Watch | 207 |
| Udunuwara | Watch | 209 |
| Udapalatha | Watch | 220 |
| Kothmale East | Watch | 243 |
Rain on route
×Moderate rain, up to 37.4 mm in 24 h
Rain gauges near your route
12345678910111213141516171819202122232425262728293031
0279 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 1 Galle, 0.7 mm, dry
- 4 Baddegama, ≥ 18.3 mm, moderate rain or more (incomplete day)
- 9 Putupaula, ≥ 1.5 mm, light rain or more (incomplete day)
- 11 Ratmalana, 14.6 mm, moderate rain
- 13 Hanwella, 3 mm, light rain
- 14 Nagalagam Street, 0 mm, dry
- 15 Dunamale, 37.4 mm, moderate rain
- 31 Nuwara Eliya, 9.4 mm, light rain
23 gauges not reporting.
Gauge coverage: most of the route.
NBRI's warning stays in force after rain eases.
Satellite estimate
- Last 3 days: among the wettest 5% of 3-day periods since 2000 in Welivitiya-Divithura, Karandeniya, Elpitiya, Benthota +16.
Rain outlook (computer model) · Next day: Chance of a rare wet day
- Next day: a chance of a wet day of the kind that comes about 1–2 days a month in Mirigama, Warakapola, Galigamuwa, Kegalle +7 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 11 Nov, 05:30)
- Next 3 days: a chance of a wet day of the kind that comes about 1–2 days a month in Attanagalla, Mirigama, Warakapola, Galigamuwa +8 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 13 Nov, 05:30)
- "Not signalled" never means dry or safe. This is a computer model, not a warning, and it never changes NBRI's levels. Like the satellite, it reads hill-country rain low and can miss heavy local downpours.
- ECMWF ensemble forecast (open data, CC BY 4.0), run 9 Nov, 17:30, compared with each division's own satellite record.
Weather forecast (Met Dept)
×No advisory for this road
- No Department of Meteorology advisory is in force for Galle, Kalutara, Colombo, Gampaha, Kegalle, Kandy and Nuwara Eliya.
- Forecast issued 10 Nov, 05:30
- Showers or thundershowers will occur at times in the Northern province and in Trincomalee district.
- Showers or thundershowers will occur elsewhere in the island after 1.00 p.m.
- Covers Kegalle, Kandy, Nuwara Eliya, Colombo, Gampaha, Kalutara and Galle on this road: Heavy falls above 100mm are likely at some places in Western, Sabaragamuwa, Central and Uva provinces and in Galle and Matara districts.
- Covers Galle on this road: Showers may occur in the coastal areas of the Southern Province during the morning.
- The general public is kindly requested to take adequate precautions to minimize damage caused by temporary localized strong winds and lightning during thundershowers.
- Covers Kegalle, Kandy, Nuwara Eliya, Colombo, Gampaha, Kalutara and Galle on this road: Misty conditions can be expected at some places in Western, Sabaragamuwa, Central and Uva provinces and in Galle, Matara and Kurunegala districts during the early hours of the morning.
- Forecast for the main cities, Tuesday, 10 November 2026 (issued 9 Nov, 16:00)
- Galle: Showers or thundershowers after 1.00p.m. Max 31°C, min 24°C.
- Nuwara Eliya: Showers or thundershowers after 1.00p.m. Max 22°C, min 13°C.
- A forecast never lowers or replaces the NBRI landslide warning above.
- Forecast and advisories by the Department of Meteorology, Sri Lanka, as issued. LankaWatch is not an official service.
Rivers and catchments
×Crosses 25 named rivers · 10 basins · Gin Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month) · Minor flood level
Gin Ganga · P2 · Madampe Lake …
BaddegamaMinor flood level · River level 4.16 mDepartment’s thresholds: Alert 3.5, minor flood 4, major flood 5 m
River basins along this road
- km 0–1 · Gin Ganga basin
- km 1–7 · P2 basin
- km 7–38 · Gin Ganga basin
- km 38–40 · Madampe Lake basin
- km 41–70 · Bentota Ganga basin
- km 70–82 · Kalu Ganga basin
- km 82–109 · Bolgoda Ganga basin
- km 109–131 · Kelani Ganga basin
- km 131–164 · Attanagala Oya basin
- km 164–209 · Maha Oya basin
- km 209–213 · Mahaweli Ganga basin
- km 213–219 · Maha Oya basin
- km 219–279 · Mahaweli Ganga basin
Satellite rain over these basins
- Gin Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Madampe Lake basin · Last 3 days: Rare here (1–2 days a month)
- Bentota Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Kalu Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Kelani Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Bolgoda Ganga basin · Last 3 days: Unusual here (3 days a month)
- Attanagala Oya basin · Last 3 days: Unusual here (3 days a month)
- Maha Oya basin · Last 3 days: Unusual here (3 days a month)
- Mahaweli Ganga basin · Last 3 days: Unusual here (3 days a month)
A whole-basin satellite average against that basin’s own record since 2000, not the area upstream of any one point. Satellites under-read hill rain. Not a warning.
Where this road crosses a river or stream
- km 11 · Maha Dola (Gin Ganga basin) · flows west
19 km² drain to this point - km 20 · Keembiya Ela (Gin Ganga basin) · flows north-west
14 km² drain to this point - km 26 · Gin Ganga · flows west
681 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Baddegama, an Irrigation Department gauge 2.6 km downstream (709 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): at least 18.3 mm in the 24 hours to 9 Nov, 08:30 (2 hourly readings missing); 7.8 mm in the 3 hours to 10 Nov, 08:08.
River level 4.16 m · Minor flood level · rising over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 4, major flood 5 m) - km 49 · Uragas Ela (Bentota Ganga basin)
5.2 km² drain to this point - km 52 · Bentota_Gnga (Bentota Ganga basin)
363 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 60 · Welipenne Ganga (Bentota Ganga basin)
131 km² drain to this point - km 74 · Iriyangala Ela (Kalu Ganga basin)
9.7 km² drain to this point - km 82 · Kalu Ganga
2,762 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 83 · Keppu Ela (Bolgoda Ganga basin)
0.4 km² drain to this point - km 90 · Panape Ela (Bolgoda Ganga basin)
66 km² drain to this point - km 97 · Maha Oya (Bolgoda Ganga basin) · flows west
27 km² drain to this point - km 101 · Nudun Ela (Bolgoda Ganga basin) · flows west
35 km² drain to this point - km 115 · Maha Ela (Kelani Ganga basin) · 2 crossings
15 km² drain to this point - km 118 · Kelani Ganga · flows west
2,126 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Nagalagam Street, an Irrigation Department gauge 13.8 km downstream (2,256 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 0 mm in the 24 hours to 9 Nov, 08:30 (Dry); 0 mm in the 3 hours to 10 Nov, 08:01.
River level 2.7 ft · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 4, minor flood 5, major flood 7 ft) - km 134–135 · Uruwal Oya (Attanagala Oya basin) · 2 crossings · flows west
42 km² drain to this point - km 140 · Dondugam Oya (Attanagala Oya basin) · flows west
183 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Dunamale, an Irrigation Department gauge 6.3 km upstream (150 km² upstream): 37.4 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 09:02.
River level 4.6 m · Minor flood level · steady over about 3 hours (Department’s thresholds: Alert 3.3, minor flood 4.4, major flood 5.5 m) - km 153 · Diyaelle Oya (Attanagala Oya basin) · flows north-west
21 km² drain to this point - km 165–167 · Kuda Oya (Maha Oya basin) · 2 crossings · flows north
54 km² drain to this point - km 175 · Rogala Oya (Maha Oya basin) · flows north-east
3.6 km² drain to this point - km 176–178 · Galigamuwa Oya (Maha Oya basin) · 2 crossings · flows west
8.5 km² drain to this point - km 198 · Maha Oya · flows west
199 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 201–202 · Hingul Oya (Maha Oya basin) · 3 crossings · flows west
39 km² drain to this point - km 226 · Mahaweli Ganga · flows north-east
900 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Peradeniya, an Irrigation Department gauge 15.4 km downstream (1,143 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 16 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 09:01.
River level 3.55 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5, minor flood 7, major flood 9 m) - km 231–232 · Atabaga Oya (Mahaweli Ganga basin) · 2 crossings · flows south
44 km² drain to this point - km 244 · Gamburu Oya (Mahaweli Ganga basin) · flows south-west
0.3 km² drain to this point - km 269 · Puna Oya (Mahaweli Ganga basin) · flows west
6.8 km² drain to this point
And 11 more unnamed streams on our map
Where this road runs beside a river
- km 201–203 · beside the Hingul Oya
Rivers and basins come from our own map of Sri Lanka’s river network. Flow direction, where shown, is worked out from the height of the land. This is orientation only, not a flood warning.
The area draining to a crossing is worked out from a terrain model (about 90 m cells) and is approximate. The rain over it is the satellite average for that same area, against its own record since 2000. Areas under about 150 km² are smaller than the satellite can see, so they show no rain.
River levels are the Irrigation Department’s own readings at its gauge, against its own thresholds. This is not a flood warning: flood warnings come from the Irrigation Department and DMC.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Dehiovita | Alert | 140 |
| Ambagamuwa | Alert | 179 |
| Karandeniya | Watch | 32 |
| Elpitiya | Watch | 35 |
| Walallavita | Watch | 48 |
| Mathugama | Watch | 55 |
| Padukka | Watch | 115 |
| Seethawaka | Watch | 116 |
| Yatiyanthota | Watch | 154 |
| Pasbage Korale | Watch | 196 |
| Kothmale West | Watch | 214 |
Rain on route
×Heavy rain, up to 126.5 mm in 24 h
Rain gauges near your route
123456789101112131415161718192021222324252627282930313233343536
0261 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 1 Galle, 0.7 mm, dry
- 4 Baddegama, ≥ 18.3 mm, moderate rain or more (incomplete day)
- 9 Putupaula, ≥ 1.5 mm, light rain or more (incomplete day)
- 11 Ratmalana, 14.6 mm, moderate rain
- 12 Hanwella, 3 mm, light rain
- 14 Penrith Estate, 126.5 mm, heavy rain
- 24 Kithulgala, 35.9 mm, moderate rain
- 28 Nawalapitiya, 77.2 mm, fairly heavy rain
- 31 Upper Kotmale, 15.9 mm, moderate rain
- 35 Nuwara Eliya, 9.4 mm, light rain
26 gauges not reporting.
Gauge coverage: most of the route.
NBRI's warning stays in force after rain eases.
Satellite estimate
- Last 3 days: among the wettest 1% of 3-day periods since 2000 in Dehiovita.
Rain outlook (computer model) · Next day: Chance of a rare wet day
- Next day: a chance of a wet day of the kind that comes about 1–2 days a month in Yatiyanthota, Ambagamuwa, Pasbage Korale, Kothmale West +2 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 11 Nov, 05:30)
- Next 3 days: a chance of a wet day of the kind that comes about 1–2 days a month in Ambagamuwa, Pasbage Korale, Kothmale West, Thalawakelle +1 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 13 Nov, 05:30)
- "Not signalled" never means dry or safe. This is a computer model, not a warning, and it never changes NBRI's levels. Like the satellite, it reads hill-country rain low and can miss heavy local downpours.
- ECMWF ensemble forecast (open data, CC BY 4.0), run 9 Nov, 17:30, compared with each division's own satellite record.
Weather forecast (Met Dept)
×No advisory for this road
- No Department of Meteorology advisory is in force for Galle, Kalutara, Colombo, Kegalle, Nuwara Eliya and Kandy.
- Forecast issued 10 Nov, 05:30
- Showers or thundershowers will occur at times in the Northern province and in Trincomalee district.
- Showers or thundershowers will occur elsewhere in the island after 1.00 p.m.
- Covers Kegalle, Kandy, Nuwara Eliya, Colombo, Kalutara and Galle on this road: Heavy falls above 100mm are likely at some places in Western, Sabaragamuwa, Central and Uva provinces and in Galle and Matara districts.
- Covers Galle on this road: Showers may occur in the coastal areas of the Southern Province during the morning.
- The general public is kindly requested to take adequate precautions to minimize damage caused by temporary localized strong winds and lightning during thundershowers.
- Covers Kegalle, Kandy, Nuwara Eliya, Colombo, Kalutara and Galle on this road: Misty conditions can be expected at some places in Western, Sabaragamuwa, Central and Uva provinces and in Galle, Matara and Kurunegala districts during the early hours of the morning.
- Forecast for the main cities, Tuesday, 10 November 2026 (issued 9 Nov, 16:00)
- Galle: Showers or thundershowers after 1.00p.m. Max 31°C, min 24°C.
- Nuwara Eliya: Showers or thundershowers after 1.00p.m. Max 22°C, min 13°C.
- A forecast never lowers or replaces the NBRI landslide warning above.
- Forecast and advisories by the Department of Meteorology, Sri Lanka, as issued. LankaWatch is not an official service.
Rivers and catchments
×Crosses 24 named rivers · 8 basins · Gin Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month) · Minor flood level
Gin Ganga · P2 · Madampe Lake …
BaddegamaMinor flood level · River level 4.16 mDepartment’s thresholds: Alert 3.5, minor flood 4, major flood 5 m
River basins along this road
- km 0–3 · Gin Ganga basin
- km 3–5 · P2 basin
- km 5–34 · Gin Ganga basin
- km 34–36 · Madampe Lake basin
- km 36–65 · Bentota Ganga basin
- km 66–78 · Kalu Ganga basin
- km 78–107 · Bolgoda Ganga basin
- km 107–108 · Bolgoda Ganga basin
- km 108–110 · Kelani Ganga basin
- km 110–111 · Bolgoda Ganga basin
- km 111–190 · Kelani Ganga basin
- km 191–261 · Mahaweli Ganga basin
Satellite rain over these basins
- Gin Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Madampe Lake basin · Last 3 days: Rare here (1–2 days a month)
- Bentota Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Kalu Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Kelani Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Bolgoda Ganga basin · Last 3 days: Unusual here (3 days a month)
- Mahaweli Ganga basin · Last 3 days: Unusual here (3 days a month)
A whole-basin satellite average against that basin’s own record since 2000, not the area upstream of any one point. Satellites under-read hill rain. Not a warning.
Where this road crosses a river or stream
- km 8 · Holuwagoda Ela (Gin Ganga basin)
2.8 km² drain to this point - km 20–22 · Gin Ganga · 2 crossings · flows west
681 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Baddegama, an Irrigation Department gauge 2.6 km downstream (709 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): at least 18.3 mm in the 24 hours to 9 Nov, 08:30 (2 hourly readings missing); 7.8 mm in the 3 hours to 10 Nov, 08:08.
River level 4.16 m · Minor flood level · rising over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 4, major flood 5 m) - km 45 · Uragas Ela (Bentota Ganga basin)
5.2 km² drain to this point - km 48 · Bentota_Gnga (Bentota Ganga basin)
363 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 56 · Welipenne Ganga (Bentota Ganga basin)
131 km² drain to this point - km 69 · Iriyangala Ela (Kalu Ganga basin)
9.7 km² drain to this point - km 78 · Kalu Ganga
2,762 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 79 · Keppu Ela (Bolgoda Ganga basin)
0.4 km² drain to this point - km 85 · Panape Ela (Bolgoda Ganga basin)
66 km² drain to this point - km 92 · Maha Oya (Bolgoda Ganga basin) · flows west
27 km² drain to this point - km 97 · Nudun Ela (Bolgoda Ganga basin) · flows west
35 km² drain to this point - km 112 · Panamnwa Ela (Kelani Ganga basin)
9.8 km² drain to this point - km 114 · Puswell Oya (Kelani Ganga basin)
65 km² drain to this point - km 141 · Gatahatta oya (Kelani Ganga basin) · flows north
51 km² drain to this point - km 152 · Godellakumbura Ela (Kelani Ganga basin) · flows west
17 km² drain to this point - km 157–160 · Kelani Ganga · 2 crossings · flows south-west
542 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Kithulgala, an Irrigation Department gauge 14.7 km upstream (425 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 35.9 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:06.
River level 2.24 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 160 · Madelle Oya (Kelani Ganga basin) · flows north
542 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 162 · Ekki Oya (Kelani Ganga basin) · flows west
537 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 167 · Kelani Ganga · flows west
506 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Kithulgala, an Irrigation Department gauge 8.9 km upstream (425 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 35.9 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:06.
River level 2.24 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 173 · Bibili Oya (Kelani Ganga basin) · flows south
488 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 175 · Girankitte Oya (Kelani Ganga basin) · flows south-west
470 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 179 · Kelani Ganga · flows west
418 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Kithulgala, an Irrigation Department gauge 2 km downstream (425 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 35.9 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:06.
River level 2.24 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 191–195 · Mahaweli Ganga · 5 crossings · flows east
14 km² drain to this point
Nawalapitiya, an Irrigation Department gauge 8.7 km downstream (187 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 77.2 mm in the 24 hours to 10 Nov, 08:30 (Fairly heavy); 0 mm in the 3 hours to 10 Nov, 09:01.
River level 1.7 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 5, major flood 6 m) - km 198 · Mahaweli Ganga · flows east
72 km² drain to this point
Nawalapitiya, an Irrigation Department gauge 4.4 km downstream (187 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 77.2 mm in the 24 hours to 10 Nov, 08:30 (Fairly heavy); 0 mm in the 3 hours to 10 Nov, 09:01.
River level 1.7 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 5, major flood 6 m) - km 204 · Mahaweli Ganga · flows north-east
145 km² drain to this point
Nawalapitiya, an Irrigation Department gauge 0.3 km upstream (187 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 77.2 mm in the 24 hours to 10 Nov, 08:30 (Fairly heavy); 0 mm in the 3 hours to 10 Nov, 09:01.
River level 1.7 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 5, major flood 6 m) - km 237–240 · Kotmale Oya (Mahaweli Ganga basin) · 4 crossings · flows west
303 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 240–243 · Dambagastalawa Oya (Mahaweli Ganga basin) · 5 crossings · flows north
211 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
irr-calidonia, an Irrigation Department gauge 5.4 km upstream (186 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): no report.
River level: no current data - km 249 · Nanu Oya (Mahaweli Ganga basin) · flows west
67 km² drain to this point - km 255–258 · Nanu Oya (Mahaweli Ganga basin) · 3 crossings · flows north-west
24 km² drain to this point
And 22 more unnamed streams on our map
Where this road runs beside a river
- km 191–192 · beside the Mahaweli Ganga
- km 242–243 · beside the Dambagastalawa Oya
- km 255–256 · beside the Nanu Oya
Rivers and basins come from our own map of Sri Lanka’s river network. Flow direction, where shown, is worked out from the height of the land. This is orientation only, not a flood warning.
The area draining to a crossing is worked out from a terrain model (about 90 m cells) and is approximate. The rain over it is the satellite average for that same area, against its own record since 2000. Areas under about 150 km² are smaller than the satellite can see, so they show no rain.
River levels are the Irrigation Department’s own readings at its gauge, against its own thresholds. This is not a flood warning: flood warnings come from the Irrigation Department and DMC.