Alert on 17 km between Ududumbara and Hunnasgiriya
Around Ududumbara and Hunnasgiriya, km 98–115.
Also: Watch on 46 km between Bandarawela and Ududumbara
You reach it about Tue 13:55, 2 h 50 min after leaving, and are through it by Tue 14:25.
NBRI’s bulletin is valid until Tue 20:00, so it covers that time.
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.
- Bandarawela
Not listedkm 0–3 - between Bandarawela and Hali-Ela
Watchkm 3–15 - Hali-Ela to Badulla
Not listedkm 15–44 - Meegahakiula
Watchkm 44–60 - Mahiyanganaya
Not listedkm 60–81 - between Mahiyanganaya and Ududumbara
Watchkm 81–98 - Ududumbara to Hunnasgiriya
Alertkm 98–115 - Medamahanuwara to Dambulla
Not listedkm 115–213
Watch on 81 km between Bandarawela and Galagedara
Around Kothmale and Pussellawa, km 2–3, km 59–135, km 138–146.
It starts where you set off; you are through it by Tue 15:35.
NBRI’s bulletin is valid until Tue 20:00, so it covers that time.
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.
- Bandarawela to Welimada
Not listedkm 0–60 - Kothmale to Gampola
Watchkm 60–125 - near Hedeniya
Not listed, Watchkm 125–134 - Hedeniya
Not listedkm 134–139 - Galagedara
Watchkm 139–146 - Mawathagama to Dambulla
Not listedkm 146–217
Watch on 13 km between Bandarawela and Kandaketiya
km 2–15, km 68–70.
It starts where you set off; you are through it by Tue 13:15.
NBRI’s bulletin is valid until Tue 20:00, so it covers that time.
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.
- Bandarawela
Not listedkm 0–3 - between Bandarawela and Hali-Ela
Watchkm 3–15 - Hali-Ela to Girandurukotte
Not listedkm 15–112 - Dehiattakandiya to Kaduruwela
Outside NBRI’s landslide area: the bulletin says nothing herekm 112–234 - Dambulla
Not listedkm 234–260
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 Bandarawela–Dambulla road
The fastest road we know from Bandarawela to Dambulla is 213 km, about 5 h 50 min, via Badulla, Digana.
Main roads on it: Kandy-Mahiyanganaya Road (50 km), Kandy-Jaffna Road (45 km), Badulla-Mahiyanganaya Road (33 km).
We show 3 roads between them, fastest first.
DS divisions on this road
It passes through 20 DS divisions in 3 districts, in travel order:
- Bandarawela
- Ella
- Hali-Ela
- Badulla
- Soranathota
- Meegahakivula
- Kandaketiya
- Rideemaliyadda
- Mahiyanganaya
- Minipe
- Udadumbara
- Medadumbara
- Kundasale
- Pathadumbara
- Ukuwela
- Matale
- Yatawatta
- Pallepola
- Naula
- Dambulla
Past NBRI bulletins
Most often listed on this road, in the 41 NBRI bulletins we have passed on since Sun 20 Sept: Udadumbara (19), Matale (14), Medadumbara (12).
A record of past bulletins, not a forecast. Not being listed doesn’t mean safe.
Steep terrain
About 20 km of it runs through steep terrain (slopes over 30° beside the road). The longest stretch is between Ududumbara and Hunnasgiriya.
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, 11:10.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Udadumbara | Alert | 98 |
| Ella | Watch | 2 |
| Meegahakivula | Watch | 44 |
| Minipe | Watch | 81 |
Rain on route
×Fairly heavy rain, up to 55.5 mm in 24 h
Rain gauges near your route
Key
- 1 Bandarawela, 4.7 mm, light rain
- 6 Badulla, 12.1 mm, moderate rain
- 8 Thaldena, 10.2 mm, moderate rain
- 10 Rantambe, 7.8 mm, light rain
- 22 Ukuwela, 6.7 mm, light rain
- 26 Bowatenna, 55.5 mm, fairly heavy rain
21 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 Medadumbara, Kundasale, Pathadumbara, Ukuwela.
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 Bandarawela, Ella, Hali-Ela, Badulla +16 (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 Bandarawela, Ella, Hali-Ela, Badulla +16 (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, Kandy and Matale.
- 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 Kandy, Matale 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 Kandy, Matale 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.
- 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 16 named rivers · 2 basins · rain upstream of Mahaweli Ganga: Rare here (1–2 days a month)
Mahaweli Ganga · Kala Oya
River basins along this road
- km 0–2 · Mahaweli Ganga basin
- km 2–198 · Mahaweli Ganga basin
- km 198–213 · Kala Oya basin
Satellite rain over these basins
- 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 5 · Badulu Oya (Mahaweli Ganga basin) · 2 crossings · flows north
3.0 km² drain to this point - km 11–13 · Badulu Oya (Mahaweli Ganga basin) · 3 crossings · flows east
27 km² drain to this point - km 14 · Nawela Oya (Mahaweli Ganga basin) · flows south-west
59 km² drain to this point - km 18–26 · Badulu Oya (Mahaweli Ganga basin) · 6 crossings · flows north-west
69 km² drain to this point - km 35–44 · Badulu Oya (Mahaweli Ganga basin) · 7 crossings · flows north
216 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month)
Thaldena, an Irrigation Department gauge 8.7 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, 11:01.
River level 0.83 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 5 m) - km 66 · Meemul Kandura (Mahaweli Ganga basin) · flows south-west
269 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month) - km 76 · Galaweln Kandura (Mahaweli Ganga basin) · flows north-west
22 km² drain to this point - km 76 · Dambarawa Oya (Mahaweli Ganga basin)
22 km² drain to this point - km 79 · Ridikotaliya Kandura (Mahaweli Ganga basin)
5.8 km² drain to this point - km 81 · Mahaweli Ganga · flows north
4,071 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Weraganthota, an Irrigation Department gauge 2.5 km upstream (4,059 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): no complete 24-hour total (11 hourly readings missing); 0 mm in the 3 hours to 10 Nov, 11:00.
River level -2.25 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 5, minor flood 6, major flood 8 m) - km 87 · Nicatlyadda Oya (Mahaweli Ganga basin) · flows north-west
87 km² drain to this point - km 101 · Kandekumbra Oya (Mahaweli Ganga basin) · flows north-east
1.0 km² drain to this point - km 110 · Kahatagolla Ela (Mahaweli Ganga basin) · flows south-east
1.8 km² drain to this point - km 113 · Ma Oya (Mahaweli Ganga basin) · flows south
1.9 km² drain to this point - km 135–136 · Huliu Ganga (Mahaweli Ganga basin) · 2 crossings · flows south
131 km² drain to this point - km 150 · Sudu Ganga (Mahaweli Ganga basin) · flows south-west
1.0 km² drain to this point - km 151 · Dan Oya (Mahaweli Ganga basin) · flows south
4.4 km² drain to this point - km 159 · Sudu Ganga (Mahaweli Ganga basin) · flows north
17 km² drain to this point - km 184 · Heenganga Ela (Mahaweli Ganga basin) · flows east
10 km² drain to this point - km 191 · Nalanda Oya (Mahaweli Ganga basin) · flows north-east
131 km² drain to this point
And 10 more unnamed streams on our map
Where this road runs beside a river
- km 5–6 · beside the Badulu Oya
- km 12–13 · beside the Badulu Oya
- km 38–40 · 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 |
|---|---|---|
| Ella | Watch | 2 |
| Kothmale East | Watch | 59 |
| Udapalatha | Watch | 88 |
| Udunuwara | Watch | 110 |
| Yatinuwara | Watch | 127 |
| Thumpane | Watch | 139 |
Rain on route
×Moderate rain, up to 18.4 mm in 24 h
Rain gauges near your route
Key
- 1 Bandarawela, 4.7 mm, light rain
- 9 Nuwara Eliya, 9.4 mm, light rain
- 17 Peradeniya, 16 mm, moderate rain
- 22 Kurunegala, 18.4 mm, moderate rain
22 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 Nuwara Eliya, Kothmale East, Udapalatha, Udunuwara +7.
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 Bandarawela, Ella, Haputale, Welimada +14 (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 Bandarawela, Ella, Haputale, Welimada +14 (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, Nuwara Eliya, Kandy, Kurunegala and Matale.
- 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 Kandy, Matale, Nuwara Eliya 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 Kandy, Matale, Nuwara Eliya, Badulla and Kurunegala 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)
- Nuwara Eliya: Showers or thundershowers after 1.00p.m. Max 22°C, min 13°C.
- Kandy: Showers or thundershowers after 1.00p.m. Max 30°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.
Rivers and catchments
×Crosses 15 named rivers · 3 basins · rain upstream of Mahaweli Ganga: Rare here (1–2 days a month)
Mahaweli Ganga · Deduru Oya · Kala Oya
River basins along this road
- km 0–2 · Mahaweli Ganga basin
- km 2–140 · Mahaweli Ganga basin
- km 140–195 · Deduru Oya basin
- km 195–217 · Kala Oya basin
Satellite rain over these basins
- Mahaweli Ganga basin · Last 3 days: Unusual here (3 days a month)
- Deduru Oya 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 11–14 · Uma Oya (Mahaweli Ganga basin) · 4 crossings · flows north
28 km² drain to this point - km 26–27 · Dougolla Oya (Mahaweli Ganga basin) · 3 crossings · flows north
162 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month) - km 61 · Puna Oya (Mahaweli Ganga basin) · flows west
6.8 km² drain to this point - km 86 · Gamburu Oya (Mahaweli Ganga basin) · flows south-west
0.3 km² drain to this point - km 99 · Atabaga Oya (Mahaweli Ganga basin) · 2 crossings · flows south
44 km² drain to this point - km 105 · 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, 11:04.
River level 3.25 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5, minor flood 7, major flood 9 m) - km 118–120 · Geli Oya (Mahaweli Ganga basin) · 2 crossings · flows north-east
12 km² drain to this point - km 120 · Mada Ela (Mahaweli Ganga basin) · flows north-west
20 km² drain to this point - km 142–147 · Dik Oya (Deduru Oya basin) · 4 crossings · flows north-west
2.2 km² drain to this point - km 146 · Narankaha Ela (Deduru Oya basin) · flows south-west
16 km² drain to this point - km 154 · Kaspatu Oya (Deduru Oya basin) · flows north-west
41 km² drain to this point - km 160–162 · Kaspatu Oya (Deduru Oya basin) · 3 crossings · flows north-west
104 km² drain to this point - km 169 · Deduru Oya · flows north-west
7.5 km² drain to this point - km 188 · Kimbulwana Oya (Deduru Oya basin) · flows north-west
44 km² drain to this point - km 207 · Mala Oya (Kala Oya basin) · flows north-west
39 km² drain to this point - km 208 · Welamitiya Oya (Kala Oya basin) · flows west
17 km² drain to this point
And 7 more unnamed streams on our map
Where this road runs beside a river
- km 11–12 · beside the Uma Oya
- km 142–143 · beside the Dik Oya
- km 160–161 · beside the Kaspatu Oya
- km 162–163 · beside the Kaspatu 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 | 2 |
| Meegahakivula | Watch | 69 |
Rain on route
×Moderate rain, up to 12.2 mm in 24 h
Rain gauges near your route
Key
- 1 Bandarawela, 4.7 mm, light rain
- 8 Thaldena, 10.2 mm, moderate rain
- 9 Randenigala, 12.2 mm, moderate rain
- 11 Rantambe, 7.8 mm, light rain
- 14 Manampitiya, ≥ 4.8 mm, light rain or more (incomplete day)
- 15 Polonnaruwa, 9.6 mm, light rain
9 gauges not reporting.
Gauge coverage: part of the route.
NBRI's warning stays in force after rain eases.
Satellite estimate
- Last 3 days: among the wettest 10% of 3-day periods since 2000 in Bandarawela, Ella, Hali-Ela, Kandaketiya +1.
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 Bandarawela, Ella, Hali-Ela, Kandaketiya +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 Bandarawela, Ella, Hali-Ela, Kandaketiya +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 Badulla, Ampara, Polonnaruwa and Matale.
- 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 Matale 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 Matale 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.
- 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 17 named rivers · 3 basins
Mahaweli Ganga · Yan Oya · Kala Oya
River basins along this road
- km 0–2 · Mahaweli Ganga basin
- km 2–224 · Mahaweli Ganga basin
- km 224–226 · Yan Oya basin
- km 226–234 · Mahaweli Ganga basin
- km 234–239 · Yan Oya basin
- km 239–259 · Kala Oya basin
Satellite rain over these basins
- 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 5 · Badulu Oya (Mahaweli Ganga basin) · 2 crossings · flows north
3.0 km² drain to this point - km 11–13 · Badulu Oya (Mahaweli Ganga basin) · 3 crossings · flows east
27 km² drain to this point - km 14 · Nawela Oya (Mahaweli Ganga basin) · flows south-west
59 km² drain to this point - km 18–22 · Badulu Oya (Mahaweli Ganga basin) · 3 crossings · flows north-west
69 km² drain to this point - km 46–58 · Wela Oya (Mahaweli Ganga basin) · 13 crossings · flows north
4.0 km² drain to this point - km 61 · Badulu Oya (Mahaweli Ganga basin) · flows west
355 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month)
Thaldena, an Irrigation Department gauge 14.5 km upstream (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, 11:01.
River level 0.83 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 5 m) - km 91 · Ulhitiya Oya (Mahaweli Ganga basin) · flows south
0.2 km² drain to this point - km 98 · Agala Oya (Mahaweli Ganga basin) · flows north
5.6 km² drain to this point - km 112 · Ulhitl Oya (Mahaweli Ganga basin) · flows north
331 km² drain to this point - km 114 · Diiyawidda Oya (Mahaweli Ganga basin) · flows west
15 km² drain to this point - km 119 · Kuda Oya (Mahaweli Ganga basin) · flows north-west
52 km² drain to this point - km 141 · Moogamana Ela / Mawana Ela / Hungamra Ela (Mahaweli Ganga basin) · flows north
163 km² drain to this point - km 159 · Horow Ela (Mahaweli Ganga basin) · flows north-west
7.8 km² drain to this point - km 168 · Mahaweli Ganga · flows north
5,591 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month)
Manampitiya, an Irrigation Department gauge 0.3 km upstream (5,591 km² upstream · rain over that area, Last 3 days: Unusual here (3 days a month)): at least 4.8 mm in the 24 hours to 10 Nov, 08:30 (2 hourly readings missing); 0 mm in the 3 hours to 10 Nov, 11:01.
River level 1.35 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 3, minor flood 4.3, major flood 6 m) - km 170 · Gailella Kotaliya (Mahaweli Ganga basin) · flows north-east
1,598 km² drain to this point - km 188 · Divuiankadawala Ela (Mahaweli Ganga basin) · flows north-east
2.4 km² drain to this point - km 193 · Giritale Oya (Mahaweli Ganga basin) · flows north
29 km² drain to this point - km 207 · Aggala Wan Oya (Mahaweli Ganga basin) · flows north
0.3 km² drain to this point - km 218 · Talkota Oya (Mahaweli Ganga basin) · flows south
17 km² drain to this point - km 227 · Kongaha Ela (Mahaweli Ganga basin) · flows east
0.3 km² drain to this point
And 13 more unnamed streams on our map
Where this road runs beside a river
- km 12–13 · beside the Badulu Oya
- km 49–50 · beside the Wela Oya
- km 52–55 · beside the Wela 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.