Alert on 17 km between Hunnasgiriya and Ududumbara
Around Hunnasgiriya and Ududumbara, km 98–115.
Also: Watch on 33 km between Ududumbara and Meegahakiula
You reach it about Tue 14:10, 2 h 30 min after leaving, and are through it by Tue 14:40.
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.
- Dambulla to Medamahanuwara
Not listedkm 0–98 - Hunnasgiriya to Ududumbara
Alertkm 98–115 - between Ududumbara and Mahiyanganaya
Watchkm 115–132 - Mahiyanganaya
Not listedkm 132–153 - Meegahakiula
Watchkm 153–169 - Badulla
Not listedkm 169–185
Watch on 80 km between Galagedara and Kothmale
Around Galagedara and Gampola, km 71–79, km 83–159.
You reach it about Tue 13:25, 1 h 40 min after leaving, and are through it by Tue 16:05.
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.
- Dambulla to Mawathagama
Not listedkm 0–72 - Galagedara
Watchkm 72–79 - Hedeniya
Not listedkm 79–83 - near Hedeniya
Watch, Not listedkm 83–92 - Gampola to Kothmale
Watchkm 92–158 - Welimada to Badulla
Not listedkm 158–222
Watch on 1 km near Kandaketiya
km 190–191.
This part of the road is on the expressway. Drive with care.
You reach it about Tue 16:30, 4 h 40 min after leaving, and are through it by Tue 16:30.
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.
- Dambulla
Not listedkm 0–26 - Kaduruwela to Dehiattakandiya
Outside NBRI’s landslide area: the bulletin says nothing herekm 26–147 - Girandurukotte to Badulla
Not listedkm 147–238
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 Dambulla–Badulla road
The fastest road we know from Dambulla to Badulla is 185 km, about 5 h, via Digana, Hunnasgiriya.
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 17 DS divisions in 3 districts, in travel order:
- Dambulla
- Naula
- Pallepola
- Matale
- Yatawatta
- Ukuwela
- Pathadumbara
- Kundasale
- Medadumbara
- Udadumbara
- Minipe
- Mahiyanganaya
- Rideemaliyadda
- Meegahakivula
- Kandaketiya
- Soranathota
- Badulla
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 17 km of it runs through steep terrain (slopes over 30° beside the road). The longest stretch is between Hunnasgiriya and Ududumbara.
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, 06:30. Checked Tue 10 Nov, 11:50.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Udadumbara | Alert | 98 |
| Minipe | Watch | 115 |
| Meegahakivula | Watch | 148 |
Rain on route
×Fairly heavy rain, up to 55.5 mm in 24 h
Rain gauges near your route
Key
- 2 Bowatenna, 55.5 mm, fairly heavy rain
- 6 Ukuwela, 20 mm, moderate rain
- 18 Rantambe, 49.5 mm, moderate rain
- 20 Thaldena, 10.2 mm, moderate rain
- 22 Badulla, 15.6 mm, moderate rain
17 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 Ukuwela, Pathadumbara, Kundasale, Medadumbara.
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 Dambulla, Naula, Pallepola, Matale +13 (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 Dambulla, Naula, Pallepola, Matale +13 (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 Matale, Kandy 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 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 15 named rivers · 2 basins · rain upstream of Mahaweli Ganga: Rare here (1–2 days a month)
Kala Oya · Mahaweli Ganga
River basins along this road
- km 0–15 · Kala Oya basin
- km 15–185 · Mahaweli Ganga 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 22 · Nalanda Oya (Mahaweli Ganga basin) · flows north-east
131 km² drain to this point - km 29 · Heenganga Ela (Mahaweli Ganga basin) · flows east
10 km² drain to this point - km 54 · Sudu Ganga (Mahaweli Ganga basin) · flows north
17 km² drain to this point - km 61 · Dan Oya (Mahaweli Ganga basin) · flows south
4.4 km² drain to this point - km 63 · Sudu Ganga (Mahaweli Ganga basin) · flows south-west
1.0 km² drain to this point - km 77–78 · Huliu Ganga (Mahaweli Ganga basin) · 2 crossings · flows south
131 km² drain to this point - km 100 · Ma Oya (Mahaweli Ganga basin) · flows south
1.9 km² drain to this point - km 103 · Kahatagolla Ela (Mahaweli Ganga basin) · flows south-east
1.8 km² drain to this point - km 112 · Kandekumbra Oya (Mahaweli Ganga basin) · flows north-east
1.0 km² drain to this point - km 126 · Nicatlyadda Oya (Mahaweli Ganga basin) · flows north-west
87 km² drain to this point - km 132 · 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 134 · Ridikotaliya Kandura (Mahaweli Ganga basin)
5.8 km² drain to this point - km 137 · Galaweln Kandura (Mahaweli Ganga basin) · flows north-west
22 km² drain to this point - km 137 · Dambarawa Oya (Mahaweli Ganga basin)
22 km² drain to this point - km 146 · 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 169–178 · 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)
And 10 more unnamed streams on our map
Where this road runs beside a river
- km 173–175 · 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 |
|---|---|---|
| Thumpane | Watch | 72 |
| Yatinuwara | Watch | 83 |
| Udunuwara | Watch | 92 |
| Udapalatha | Watch | 107 |
| Kothmale East | Watch | 130 |
Rain on route
×Moderate rain, up to 30.6 mm in 24 h
Rain gauges near your route
Key
- 5 Kurunegala, 14.6 mm, moderate rain
- 10 Peradeniya, 16 mm, moderate rain
- 17 Nuwara Eliya, 30.6 mm, moderate rain
- 26 Badulla, 15.6 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 Mallawapitiya, Mawathagama, Pujapitiya, Thumpane +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 Dambulla, Galewela, Ibbagamuwa, Mallawapitiya +13 (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 Dambulla, Galewela, Ibbagamuwa, Mallawapitiya +13 (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 Matale, Kurunegala, Kandy, Nuwara Eliya 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 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)
- Kandy: Showers or thundershowers after 1.00p.m. Max 30°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 16 named rivers · 3 basins · rain upstream of Mahaweli Ganga: Rare here (1–2 days a month)
Kala Oya · Deduru Oya · Mahaweli Ganga
River basins along this road
- km 0–22 · Kala Oya basin
- km 22–77 · Deduru Oya basin
- km 77–222 · Mahaweli Ganga basin
Satellite rain over these basins
- Deduru 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 9 · Welamitiya Oya (Kala Oya basin) · flows west
17 km² drain to this point - km 11 · Mala Oya (Kala Oya basin) · flows north-west
39 km² drain to this point - km 30 · Kimbulwana Oya (Deduru Oya basin) · flows north-west
44 km² drain to this point - km 48 · Deduru Oya · flows north-west
7.5 km² drain to this point - km 56–57 · Kaspatu Oya (Deduru Oya basin) · 3 crossings · flows north-west
104 km² drain to this point - km 64 · Kaspatu Oya (Deduru Oya basin) · flows north-west
41 km² drain to this point - km 70–75 · Dik Oya (Deduru Oya basin) · 4 crossings · flows north-west
2.2 km² drain to this point - km 71 · Narankaha Ela (Deduru Oya basin) · flows south-west
16 km² drain to this point - km 97–100 · Geli Oya (Mahaweli Ganga basin) · 2 crossings · flows north-east
12 km² drain to this point - km 98 · Mada Ela (Mahaweli Ganga basin) · flows north-west
20 km² drain to this point - km 113 · 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 118–119 · Atabaga Oya (Mahaweli Ganga basin) · 2 crossings · flows south
44 km² drain to this point - km 132 · Gamburu Oya (Mahaweli Ganga basin) · flows south-west
0.3 km² drain to this point - km 157 · Puna Oya (Mahaweli Ganga basin) · flows west
6.8 km² drain to this point - km 190–197 · Dougolla Oya (Mahaweli Ganga basin) · 6 crossings · flows east
190 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month) - km 198–199 · Uma Oya (Mahaweli Ganga basin) · 2 crossings · flows west
369 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month) - km 216–219 · Badulu Oya (Mahaweli Ganga basin) · 3 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, 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)
And 7 more unnamed streams on our map
Where this road runs beside a river
- km 55–56 · beside the Kaspatu Oya
- km 56–57 · beside the Kaspatu Oya
- km 74–76 · beside the Dik 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 |
|---|---|---|
| Meegahakivula | Watch | 190 |
Rain on route
×Moderate rain, up to 49.5 mm in 24 h
Rain gauges near your route
Key
- 1 Polonnaruwa, 13.6 mm, moderate rain
- 2 Manampitiya, ≥ 4.8 mm, light rain or more (incomplete day)
- 5 Rantambe, 49.5 mm, moderate rain
- 6 Randenigala, 28 mm, moderate rain
- 8 Thaldena, 10.2 mm, moderate rain
- 12 Badulla, 15.6 mm, moderate rain
6 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 Meegahakivula, Kandaketiya, Hali-Ela, Soranathota +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 Dambulla, Hingurakgoda, Dehiattakandiya, Mahiyanganaya +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 Dambulla, Hingurakgoda, Thamankaduwa, Dimbulagala +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 Matale, Polonnaruwa, Ampara 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 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 16 named rivers · 3 basins
Kala Oya · Yan Oya · Mahaweli Ganga
River basins along this road
- km 0–21 · Kala Oya basin
- km 21–25 · Yan Oya basin
- km 26–33 · Mahaweli Ganga basin
- km 33–35 · Yan Oya basin
- km 35–238 · Mahaweli Ganga 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 32 · Kongaha Ela (Mahaweli Ganga basin) · flows east
0.3 km² drain to this point - km 41 · Talkota Oya (Mahaweli Ganga basin) · flows south
17 km² drain to this point - km 53 · Aggala Wan Oya (Mahaweli Ganga basin) · flows north
0.3 km² drain to this point - km 66 · Giritale Oya (Mahaweli Ganga basin) · flows north
29 km² drain to this point - km 71 · Divuiankadawala Ela (Mahaweli Ganga basin) · flows north-east
2.4 km² drain to this point - km 89 · Gailella Kotaliya (Mahaweli Ganga basin) · flows north-east
1,598 km² drain to this point - km 91 · 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 101 · Horow Ela (Mahaweli Ganga basin) · flows north-west
7.8 km² drain to this point - km 118 · Moogamana Ela / Mawana Ela / Hungamra Ela (Mahaweli Ganga basin) · flows north
163 km² drain to this point - km 140 · Kuda Oya (Mahaweli Ganga basin) · flows north-west
52 km² drain to this point - km 146 · Diiyawidda Oya (Mahaweli Ganga basin) · flows west
15 km² drain to this point - km 148 · Ulhitl Oya (Mahaweli Ganga basin) · flows north
331 km² drain to this point - km 161 · Agala Oya (Mahaweli Ganga basin) · flows north
5.6 km² drain to this point - km 168 · Ulhitiya Oya (Mahaweli Ganga basin) · flows south
0.2 km² drain to this point - km 198 · 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 201–213 · Wela Oya (Mahaweli Ganga basin) · 13 crossings · flows north
4.0 km² drain to this point
And 13 more unnamed streams on our map
Where this road runs beside a river
- km 205–207 · beside the Wela Oya
- km 209–210 · 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.