Leaving
Level 1 · WatchTue 10 Nov
Watch on 62 km between Ella and Ratnapura
Around Ella and Ratnapura, km 0–9, km 76–129.
It starts where you set off; you are through it by Tue 15:25.
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 · 129 km~4 h 30 min
NBRI WatchNot listedRiver crossingRain gaugeNo report
- Ella
Watchkm 0–9 - Bandarawela to Haldummulla
Not listedkm 9–76 - Ratnapura
Watchkm 76–129
LandslideWatch2 stretches · NBRI’s adviceRainAbout 1–2 days a month are this wet hereLast 3 days · Satellite estimate · Rain gauges: Light rain, up to 8.3 mm in 24 hWeatherShowers or thundershowers after 1.00p.mRatnapura 33° / 23°Rivers11 crossingsRathnapura: Below Alert · falling · Walawe Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month)
Level 1 · WatchTue 10 Nov
Watch on 80 km between Ella and Ratnapura
Around Ella and Wellawaya, km 0–60, km 117–134, km 165–171.
It starts where you set off; you are through it by Tue 15:25.
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 · 171 km~4 h 30 min
NBRI WatchNot listedRiver crossingRain gaugeNo report
- Ella to Wellawaya
Watchkm 0–60 - Udawalawe to Pallebedda
Not listedkm 60–118 - Godakawela to Madampe
Watchkm 118–133 - between Madampe and Ratnapura
Not listedkm 133–165 - Ratnapura
Watchkm 165–170
LandslideWatch3 stretches · NBRI’s adviceRainAbout 1–2 days a month are this wet hereLast 3 days · Satellite estimate · Rain gauges: Light rain, up to 8.3 mm in 24 hWeatherShowers or thundershowers after 1.00p.mRatnapura 33° / 23°Rivers16 crossingsWellawaya: Below Alert · steady · Walawe Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month)
Level 1 · WatchTue 10 Nov
Watch on 128 km between Ella and Ratnapura
Around Ella and Wellawaya, km 0–60, km 216–227, km 233–250 and 1 more.
It starts where you set off; you are through it by Tue 16:45.
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 · 330 km~5 h 50 min
NBRI WatchNot listedOutside NBRI areaRiver crossingRain gaugeNo report
- Ella to Wellawaya
Watchkm 0–60 - Not listedkm 60–64
- Outside NBRI’s landslide area: the bulletin says nothing herekm 64–104
- Not listedkm 104–105
- Outside NBRI’s landslide area: the bulletin says nothing herekm 105–144
- Thihagoda to Imaduwa
Not listedkm 144–217 - Watchkm 217–227
- Not listedkm 227–233
- Watchkm 233–249
- near Ingiriya
Not listedkm 249–287 - Ingiriya to Ratnapura
Watchkm 287–330
LandslideWatch4 stretches · NBRI’s adviceRainHeavy rain, up to 113.5 mm in 24 hLast 3 days, satellite: Only a few days a year are this wet here · Last this wet in Kiriella: November 2025WeatherShowers or thundershowers after 1.00p.mRatnapura 33° / 23°Rivers39 crossingsBaddegama: Minor flood level · rising · Walawe 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 Ella–Ratnapura road
The fastest road we know from Ella to Ratnapura is 129 km, about 4 h 30 min, via Bandarawela, Haldummulla.
Main roads on it: Ratunapura-Wellawaya Road (38 km), Ratnapura-Wewelwatte Road (24 km), Balangoda-Rassagala-Uwella Road (14 km).
We show 3 roads between them, fastest first.
DS divisions on this road
It passes through 7 DS divisions in 2 districts, in travel order:
Past NBRI bulletins
Most often listed on this road, in the 41 NBRI bulletins we have passed on since Sun 20 Sept: Ratnapura (35), Imbulpe (19), Balangoda (17).
A record of past bulletins, not a forecast. Not being listed doesn’t mean safe.
Steep terrain
About 17 km of it runs through steep terrain (slopes over 30° beside the road). The longest stretch is near Haldummulla.
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, 05:30. Checked Tue 10 Nov, 11:00.
Was this page useful?Thanks, noted.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Ella | Watch | 0 |
| Balangoda | Watch | 76 |
| Ratnapura | Watch | 93 |
Rain on route
×Light rain, up to 8.3 mm in 24 h
Rain gauges near your route
1234567891011121314
0129 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 3 Bandarawela, 4.7 mm, light rain
- 7 Samanala Wawa, 0 mm, dry
- 14 Ratnapura, 8.3 mm, light rain
11 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 Imbulpe, Balangoda, Ratnapura.
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 Ella, Bandarawela, Haputale, Haldummulla +3 (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 Ella, Bandarawela, Haputale, Haldummulla +3 (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 Badulla and Ratnapura.
- 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 and Badulla 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.
- 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 and Badulla 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)
- Ratnapura: Showers or thundershowers after 1.00p.m. Max 33°C, min 23°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 10 named rivers · 4 basins · Walawe Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month)
Kirindi Oya · Mahaweli Ganga · Walawe Ganga …
RathnapuraBelow Alert · River level 4.73 mDepartment’s thresholds: Alert 5.2, minor flood 7.5, major flood 9.5 m
River basins along this road
- km 0–1 · Kirindi Oya basin
- km 1–6 · Kirindi Oya basin
- km 6 · Mahaweli Ganga basin
- km 6–7 · Kirindi Oya basin
- km 7–21 · Kirindi Oya basin
- km 21–34 · Mahaweli Ganga basin
- km 34–92 · Walawe Ganga basin
- km 92–129 · Kalu Ganga basin
Satellite rain over these basins
- Walawe 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)
- 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 · Kirindi Oya · flows north
9.3 km² drain to this point - km 40 · Diyakana Oya (Walawe Ganga basin) · flows south-west
0.5 km² drain to this point - km 44 · Patana Oya (Walawe Ganga basin) · flows east
0.2 km² drain to this point - km 50 · Weli Oya (Walawe Ganga basin) · flows south-east
23 km² drain to this point - km 57 · Malape Oya (Walawe Ganga basin) · flows south-east
2.7 km² drain to this point - km 62 · Kiriketi Oya (Walawe Ganga basin) · flows south-east
19 km² drain to this point - km 65 · Belihul Oya (Walawe Ganga basin) · flows south-east
50 km² drain to this point - km 77 · Walawe Ganga · flows south-east
132 km² drain to this point - km 100 · Randi Oya (Kalu Ganga basin) · flows south-west
18 km² drain to this point - km 118 · Kalu Ganga
2.1 km² drain to this point
Rathnapura, an Irrigation Department gauge on this river (640 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 39.5 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 10:01.
River level 4.73 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5.2, minor flood 7.5, major flood 9.5 m) - km 123–126 · Kalu Ganga · 4 crossings
199 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Rathnapura, an Irrigation Department gauge on this river (640 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 39.5 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 10:01.
River level 4.73 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5.2, minor flood 7.5, major flood 9.5 m)
And 7 more unnamed streams on our map
Where this road runs beside a river
- km 124–126 · beside the Kalu Ganga
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 |
|---|---|---|
| Ella | Watch | 0 |
| Wellawaya | Watch | 14 |
| Godakawela | Watch | 118 |
| Ratnapura | Watch | 166 |
Rain on route
×Light rain, up to 8.3 mm in 24 h
Rain gauges near your route
12345678910111213141516
0171 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 4 Wellawaya, ≥ 8.5 mm, light rain or more (incomplete day)
- 7 Moraketiya, ≥ 12.1 mm, moderate rain or more (incomplete day)
- 16 Ratnapura, 8.3 mm, light rain
13 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, Godakawela, Kahawatta, Nivithigala +2.
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 Ella, Wellawaya, Thanamalvila, Sevanagala +6 (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 Ella, Wellawaya, Thanamalvila, Sevanagala +6 (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 Badulla, Moneragala and Ratnapura.
- 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 and Moneragala 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.
- 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 and Moneragala 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)
- Ratnapura: Showers or thundershowers after 1.00p.m. Max 33°C, min 23°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 13 named rivers · 4 basins · Walawe Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kalu Ganga: Rare here (1–2 days a month)
Kirindi Oya · Malala Oya · Walawe Ganga …
WellawayaBelow Alert · River level 1.65 mDepartment’s thresholds: Alert 4.4, minor flood 5.4, major flood 5.9 m
River basins along this road
- km 0–66 · Kirindi Oya basin
- km 66–78 · Malala Oya basin
- km 78–132 · Walawe Ganga basin
- km 132–171 · Kalu Ganga basin
Satellite rain over these basins
- Walawe 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)
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 2–4 · Kirindi Oya · 4 crossings · flows east
18 km² drain to this point - km 20–25 · 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 22 · Kunapad Ara (Kirindi Oya basin) · flows south
98 km² drain to this point - km 28 · Radapola Oya (Kirindi Oya basin) · flows south-east
16 km² drain to this point - km 30 · Galamola Ara (Kirindi Oya basin) · flows south-east
6.2 km² drain to this point - km 33–35 · 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 37 · Dambakola Ara (Kirindi Oya basin) · flows south-east
3.1 km² drain to this point - km 38 · 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 53 · 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 73 · Katagal Ara (Malala Oya basin) · flows south
40 km² drain to this point - km 84 · Mau Ara (Walawe Ganga basin) · flows south
248 km² drain to this point · rain over that area, Last 24 hours: Rare here (1–2 days a month) - km 98 · Walawe Ganga · flows south
6.0 km² drain to this point
Moraketiya, an Irrigation Department gauge 14.6 km downstream (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 102 · Karadi Ara (Walawe Ganga basin) · flows south
22 km² drain to this point - km 128 · Rakwana Ganga (Walawe Ganga basin) · flows south
16 km² drain to this point - km 166 · Dodangaha Ela (Kalu Ganga basin) · flows north-west
18 km² drain to this point - km 169 · Kalu Ganga
359 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Rathnapura, an Irrigation Department gauge on this river (640 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 39.5 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 10:01.
River level 4.73 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5.2, minor flood 7.5, major flood 9.5 m)
And 3 more unnamed streams on our map
Where this road runs beside a river
- km 2–4 · beside the Kirindi Oya
- km 34–35 · beside the Kirindi Oya
- km 37–39 · 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.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Ella | Watch | 0 |
| Wellawaya | Watch | 14 |
| Karandeniya | Watch | 216 |
| Elpitiya | Watch | 220 |
| Walallavita | Watch | 234 |
| Mathugama | Watch | 240 |
| Ingiriya | Watch | 287 |
| Kiriella | Watch | 299 |
| Ratnapura | Watch | 325 |
Rain on route
×Heavy rain, up to 113.5 mm in 24 h
Rain gauges near your route
12345678910111213141516171819202122232425262728
0330 km
Key
DryLight rainModerate rainHeavy rainVery heavy rainNo rain report
- 4 Wellawaya, ≥ 8.5 mm, light rain or more (incomplete day)
- 7 Mattala, 12.2 mm, moderate rain
- 8 Moraketiya, ≥ 12.1 mm, moderate rain or more (incomplete day)
- 13 Galle, 0.7 mm, dry
- 16 Baddegama, ≥ 44.6 mm, moderate rain or more (incomplete day)
- 21 Putupaula, ≥ 1.5 mm, light rain or more (incomplete day)
- 24 Ellagawa, 93.4 mm, fairly heavy rain
- 25 Kiriella, 113.5 mm, heavy rain
- 28 Ratnapura, 8.3 mm, light rain
19 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 Kiriella.
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 Ella, Wellawaya, Thanamalvila, Lunugamvehera +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 Ella, Wellawaya, Thanamalvila, Lunugamvehera +9 (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 Badulla, Moneragala, Hambantota, Ratnapura, Matara, Galle and Kalutara.
- 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, Kalutara, 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, Kalutara, 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)
- Ratnapura: Showers or thundershowers after 1.00p.m. Max 33°C, min 23°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 35 named rivers · 16 basins · Walawe 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
Kirindi Oya · Malala Oya · Walawe Ganga …
BaddegamaMinor flood level · River level 4.2 mDepartment’s thresholds: Alert 3.5, minor flood 4, major flood 5 m
River basins along this road
- km 0–78 · Kirindi Oya basin
- km 78–90 · Malala Oya basin
- km 90–108 · Walawe Ganga basin
- km 108–117 · Kachigal Aru basin
- km 117–124 · Urubokka Ganga basin
- km 124–131 · Rekawa Oya basin
- km 131–138 · Kirama Oya basin
- km 138–144 · Seenimodara Oya basin
- km 144–166 · Nilwala Ganga basin
- km 166–183 · Polwatta Ganga basin
- km 183–186 · Koggala Lake basin
- km 186–220 · Gin Ganga basin
- km 220–222 · Madampe Lake basin
- km 222–251 · Bentota Ganga basin
- km 251–263 · Kalu Ganga basin
- km 263–281 · Bolgoda Ganga basin
- km 281–330 · Kalu Ganga basin
Satellite rain over these basins
- Walawe Ganga basin · Last 3 days: Rare here (1–2 days a month)
- 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)
- Kachigal Aru basin · Last 3 days: Unusual here (3 days a month)
- Urubokka Ganga basin · Last 3 days: Unusual here (3 days a month)
- Nilwala Ganga basin · Last 3 days: Unusual here (3 days a month)
- Bolgoda 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 2–4 · Kirindi Oya · 4 crossings · flows east
18 km² drain to this point - km 20–25 · 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 22 · Kunapad Ara (Kirindi Oya basin) · flows south
98 km² drain to this point - km 28 · Radapola Oya (Kirindi Oya basin) · flows east
16 km² drain to this point - km 30 · Galamola Ara (Kirindi Oya basin) · flows south-east
6.2 km² drain to this point - km 33–35 · 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 37 · Dambakola Ara (Kirindi Oya basin) · flows south-east
3.1 km² drain to this point - km 38 · 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 53 · 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 67 · 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 86 · Malala Oya · flows south
256 km² drain to this point - km 92 · Maha Ara (Walawe Ganga basin) · flows south-east
0.1 km² drain to this point - km 97 · Mahakadawala Ara (Walawe Ganga basin) · flows south-west
23 km² drain to this point - km 97 · Mahaweligada Ara (Walawe Ganga basin) · flows south-west
23 km² drain to this point - km 104 · 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 134 · Kirama Oya · flows east
115 km² drain to this point - km 140 · Sinimodara Oya · flows east
20 km² drain to this point - km 155 · Kanduwela Ela (Nilwala Ganga basin)
35 km² drain to this point - km 158 · 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 174 · Polwatta Ganga
166 km² drain to this point · rain over that area, Last 24 hours: Unusual here (3 days a month) - km 192 · Maha Dola (Gin Ganga basin) · flows west
19 km² drain to this point - km 202 · Keembiya Ela (Gin Ganga basin) · flows north-west
14 km² drain to this point - km 208 · 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 44.6 mm in the 24 hours to 10 Nov, 08:30 (2 hourly readings missing); 0 mm in the 3 hours to 10 Nov, 10:08.
River level 4.2 m · Minor flood level · rising over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 4, major flood 5 m) - km 230 · Uragas Ela (Bentota Ganga basin)
5.2 km² drain to this point - km 233 · 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 241 · Welipenne Ganga (Bentota Ganga basin)
131 km² drain to this point - km 255 · Iriyangala Ela (Kalu Ganga basin)
9.6 km² drain to this point - km 263 · Kalu Ganga
2,762 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 264 · Keppu Ela (Bolgoda Ganga basin)
0.4 km² drain to this point - km 271 · Panape Ela (Bolgoda Ganga basin)
66 km² drain to this point - km 278 · Pinwala Ela (Bolgoda Ganga basin) · flows south
20 km² drain to this point - km 287 · Mahawak Oya (Kalu Ganga basin) · flows south
77 km² drain to this point - km 294 · Ingiriya Ela (Kalu Ganga basin) · flows south
24 km² drain to this point - km 296 · Nambapana Ela (Kalu Ganga basin) · flows south
3.8 km² drain to this point - km 300 · Walayal Dola (Kalu Ganga basin) · flows south-east
1,447 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 303 · Yatipauwa Ela (Kalu Ganga basin)
34 km² drain to this point - km 314 · Kuru Ganga (Kalu Ganga basin)
1,267 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 325 · Maha Ela (Kalu Ganga basin) · flows south-east
699 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 330 · Katugas Ela (Kalu Ganga basin) · flows south-west
657 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
And 2 more unnamed streams on our map
Where this road runs beside a river
- km 2–4 · beside the Kirindi Oya
- km 34–35 · beside the Kirindi Oya
- km 37–39 · 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.