Leaving
Level 1 · WatchTue 10 Nov
Watch on 69 km between Wellawaya and Hali-Ela
Around Wellawaya and Ella, km 139–209.
You reach it about Tue 12:30, 2 h 10 min after leaving, and are through it by Tue 14:10.
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 · 222 km~4 h 10 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 - Hali-Ela to Badulla
Not listedkm 209–222
LandslideWatch1 stretch · NBRI’s adviceRainFairly heavy rain, up to 59.2 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°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 2 · AlertTue 10 Nov
Alert on 13 km near Passara
Around Passara, km 214–227.
Also: Watch on 40 km near Wellawaya
You reach it about Tue 14:40, 4 h 20 min after leaving, and are through it by Tue 15:05.
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 · 239 km~5 h 10 min
NBRI AlertNBRI WatchNot listedOutside NBRI areaRiver crossingRain gaugeNo report
- Galle to Thihagoda
Not listedkm 0–55 - near Padalangala
Outside NBRI’s landslide area: the bulletin says nothing herekm 55–94 - Padalangala to Embilipitiya
Not listedkm 94–148 - Wellawaya
Watchkm 148–188 - between Wellawaya and Passara
Not listedkm 188–214 - Passara
Alertkm 214–227 - Badulla
Not listedkm 227–239
LandslideAlert2 stretches · NBRI’s adviceRainFairly heavy rain, up to 90 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°Rivers22 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)
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–Badulla road
The fastest road we know from Galle to Badulla is 222 km, about 4 h 10 min, via Ella.
Main roads on it: Southern Expressway (104 km), Hambantota-Wellawaya Road (45 km), Wellawaya-Ella-Kumbalwela Road (30 km).
We show 2 roads between them, fastest first.
DS divisions on this road
It passes through 22 DS divisions in 6 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
- Hali-Ela
- Badulla
Past NBRI bulletins
Most often listed on this road, in the 41 NBRI bulletins we have passed on since Sun 20 Sept: Ella (8), Wellawaya (4), Hali-Ela (2).
A record of past bulletins, not a forecast. Not being listed doesn’t mean safe.
Steep terrain
About 11 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, 04:30. Checked Tue 10 Nov, 10:20.
Was this page useful?Thanks, noted.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Wellawaya | Watch | 140 |
| Ella | Watch | 186 |
Rain on route
×Fairly heavy rain, up to 59.2 mm in 24 h
Rain gauges near your route
12345678910111213141516
0222 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 1 Galle, 0.7 mm, dry
- 2 Yakkalamulla (NBRI), 14.6 mm, moderate rain
- 3 Kokmaduwa (NBRI), 0 mm, dry
- 6 Moraketiya, ≥ 12.1 mm, moderate rain or more (incomplete day)
- 7 Mattala, 12.2 mm, moderate rain
- 10 Wellawaya, ≥ 8.5 mm, light rain or more (incomplete day)
- 11 Wellawaya (NBRI), 50.2 mm, fairly heavy rain
- 12 Karandagolla (NBRI), 0 mm, dry
- 13 Ella (NBRI), 59.2 mm, fairly heavy rain
- 14 Uduwara (NBRI), 0.8 mm, dry
- 15 Bogahamaditta (NBRI), 9.8 mm, light rain
- 16 Badulla, 12.1 mm, moderate rain
4 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.
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 +5 (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 +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.
Rivers and catchments
×Crosses 18 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 17–33 · 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 200–222 · 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, 10:08.
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, 10:01.
River level 2.99 m · Below Alert · 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)): no complete 24-hour total (4 hourly readings missing); 0 mm in the 3 hours to 10 Nov, 10:05.
River level 1.98 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, 10:01.
River level 1.81 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, 10:02.
River level 1.65 m · Below Alert · steady 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, 10:02.
River level 1.65 m · Below Alert · steady 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 172 · 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, 10:02.
River level 1.65 m · Below Alert · steady 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 205–207 · Badulu Oya (Mahaweli Ganga basin) · 3 crossings · flows north
36 km² drain to this point - km 208 · Nawela Oya (Mahaweli Ganga basin) · flows south-west
59 km² drain to this point - km 212–220 · Badulu Oya (Mahaweli Ganga basin) · 6 crossings · flows east
126 km² drain to this point
Thaldena, an Irrigation Department gauge 18.6 km downstream (279 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): 10.2 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 10:03.
River level 0.84 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 5 m)
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 206–208 · beside the Badulu 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 |
|---|---|---|
| Passara | Alert | 214 |
| Wellawaya | Watch | 148 |
Rain on route
×Fairly heavy rain, up to 90 mm in 24 h
Rain gauges near your route
1234567891011121314151617
0239 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 1 Galle, 0.7 mm, dry
- 2 Yakkalamulla (NBRI), 14.6 mm, moderate rain
- 3 Kokmaduwa (NBRI), 0 mm, dry
- 6 Moraketiya, ≥ 12.1 mm, moderate rain or more (incomplete day)
- 9 Wellawaya, ≥ 8.5 mm, light rain or more (incomplete day)
- 10 Wellawaya (NBRI), 50.2 mm, fairly heavy rain
- 11 Karandagolla (NBRI), 0 mm, dry
- 12 Dewathura Pri. (NBRI), 0 mm, dry
- 13 Passara (NBRI), 90 mm, fairly heavy rain
- 14 Kendagolla (NBRI), 0.4 mm, dry
- 15 Spring Vally (NBRI), 57.6 mm, fairly heavy rain
- 16 Uva Wellassa (NBRI), 41.8 mm, moderate rain
- 17 Badulla, 12.1 mm, moderate rain
4 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.
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, Sevanagala, Thanamalvila, Wellawaya +4 (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 +7 (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.
Rivers and catchments
×Crosses 19 named rivers · 15 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 1–9 · P2 basin
- km 9–17 · Koggala Lake basin
- km 17–33 · Polwatta Ganga basin
- km 33–55 · Nilwala Ganga basin
- km 55–61 · Seenimodara Oya basin
- km 61–68 · Kirama Oya basin
- km 68–75 · Rekawa Oya basin
- km 75–82 · Urubokka Ganga basin
- km 83–91 · Kachigal Aru basin
- km 91–129 · Walawe Ganga basin
- km 129–142 · Malala Oya basin
- km 142–185 · Kirindi Oya basin
- km 185–219 · Manik Ganga basin
- km 219–239 · 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 41 · 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, 10:08.
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 59 · Sinimodara Oya · flows east
20 km² drain to this point - km 65 · Kirama Oya · flows east
115 km² drain to this point - km 105 · Hulanda Oya (Walawe Ganga basin) · flows north-east
172 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 114 · Walawe Ganga · flows south-east
1,542 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Moraketiya, an Irrigation Department gauge 0.1 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, 10:01.
River level 2.99 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 5, major flood 7 m) - km 119 · Mau Ara (Walawe Ganga basin) · flows south-west
297 km² drain to this point · rain over that area, Last 24 hours: Rare here (1–2 days a month) - km 135 · Katagal Ara (Malala Oya basin) · flows south
40 km² drain to this point - km 155 · 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, 10:01.
River level 1.81 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 6.9, minor flood 8.4, major flood 8.8 m) - km 169 · 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, 10:02.
River level 1.65 m · Below Alert · steady over about 3 hours (Department’s thresholds: Alert 4.4, minor flood 5.4, major flood 5.9 m) - km 171 · Dambakola Ara (Kirindi Oya basin) · flows south-east
3.1 km² drain to this point - km 173–175 · 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, 10:02.
River level 1.65 m · Below Alert · steady over about 3 hours (Department’s thresholds: Alert 4.4, minor flood 5.4, major flood 5.9 m) - km 178 · Galamola Ara (Kirindi Oya basin) · flows south-east
6.2 km² drain to this point - km 180 · Kirindi Oya · flows south
143 km² drain to this point
Wellawaya, an Irrigation Department gauge 5.8 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, 10:02.
River level 1.65 m · Below Alert · steady over about 3 hours (Department’s thresholds: Alert 4.4, minor flood 5.4, major flood 5.9 m) - km 180 · Radapola Oya (Kirindi Oya basin) · flows east
17 km² drain to this point - km 188 · Pilhiyan Ara (Manik Ganga basin) · flows south
0.8 km² drain to this point - km 193 · Kuda Oya (Manik Ganga basin) · flows east
77 km² drain to this point - km 199 · Kehelagala Oya (Manik Ganga basin) · flows south-west
49 km² drain to this point - km 215 · Amunula Oya (Manik Ganga basin)
0.4 km² drain to this point - km 223 · Loggal Oya (Mahaweli Ganga basin) · flows east
1.0 km² drain to this point - km 238 · Badulu Oya (Mahaweli Ganga basin) · flows north
168 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month)
Thaldena, an Irrigation Department gauge 14.2 km downstream (279 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): 10.2 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 10:03.
River level 0.84 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 5 m)
And 7 more unnamed streams on our map
Where this road runs beside a river
- km 169–170 · beside the Kirindi Oya
- km 172–174 · beside the Kirindi 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.
Weather forecast (Met Dept)
×No advisory for this road
- No Department of Meteorology advisory is in force for Galle, Matara, Hambantota, Ratnapura, Moneragala and Badulla.
- 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, 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, 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.
- 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.