Watch on 99 km between Pasyala and Nuwara Eliya
Around Warakapola and Kegalle, km 36–40, km 42–56, km 60–70 and 1 more.
You reach it about Tue 18:50, 50 min after leaving, and are through it by Tue 22:05.
This bulletin ends Tue 20:00, while you are on that part of the road. The next one usually comes out 16:45–17:45: check it before Pasyala.
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.
- BIA Airport (Katunayake) to Pasyala
Not listedkm 0–43 - Warakapola
Watchkm 43–55 - between Warakapola and Kegalle
Not listedkm 55–61 - Kegalle
Watchkm 61–70 - near Kegalle
Not listedkm 70–74 - Gampola to Kothmale
Watchkm 74–150 - Nuwara Eliya
Not listedkm 150–158
Alert on 31 km between Puwakpitiya and Ginigathhena
Around Dehiowita and Ginigathhena, km 69–83, km 107–125.
Also: Watch on 74 km between Hanwella and Nawalapitiya
1.1 km of this route can't be matched to a DS division, so there is no warning data for it. Check the bulletin for that area yourself.
You reach it about Tue 19:20, 1 h 20 min after leaving, and are through it by Tue 21:00.
This bulletin ends Tue 20:00, while you are on that part of the road. The next one usually comes out 16:45–17:45: check it before Puwakpitiya.
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.
- BIA Airport (Katunayake)
Not listedkm 0–4 - Katunayake
Not on our map: no warning datakm 4–5 - Kaduwela
Not listedkm 5–48 - Hanwella to Puwakpitiya
Watchkm 48–69 - Dehiowita
Alertkm 69–83 - Yatiyantota to Kithulgala
Watchkm 83–108 - Ginigathhena
Alertkm 108–125 - Nawalapitiya
Watchkm 125–153 - Talawakele to Nuwara Eliya
Not listedkm 153–190
Alert on 16 km near Padiyapelella
Around Padiyapelella, km 159–166, km 170–183.
Also: Watch on 31 km between Galagedara and Padiyapelella
You reach it about Tue 21:50, 3 h 50 min after leaving, and are through it by Tue 23:05.
This bulletin ends Tue 20:00, before you get there. The next one usually comes out 16:45–17:45: check it before you set off.
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.
- BIA Airport (Katunayake) to Mawathagama
Not listedkm 0–95 - Galagedara
Watchkm 95–102 - Hedeniya to Kandy
Not listedkm 102–142 - Hanguranketha to Rikillagaskada
Watchkm 142–159 - Padiyapelella
Alertkm 159–165 - near Padiyapelella
Watch, Alertkm 165–183 - Nuwara Eliya
Not listedkm 183–196
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 BIA Airport (Katunayake)–Nuwara Eliya road
The fastest road we know from BIA Airport (Katunayake) to Nuwara Eliya is 158 km, about 4 h 20 min, via Kegalle, Gampola.
Main roads on it: Colombo-Kandy Road (56 km), Nuwara Eliya Road (51 km), Katunayake-Veyangoda Road (23 km).
We show 3 roads between them, fastest first.
DS divisions on this road
It passes through 14 DS divisions in 4 districts, in travel order:
- Katana
- Minuwangoda
- Attanagalla
- Mirigama
- Warakapola
- Galigamuwa
- Kegalle
- Rambukkana
- Mawanella
- Yatinuwara
- Udunuwara
- Udapalatha
- Kothmale East
- Nuwara Eliya
Past NBRI bulletins
Most often listed on this road, in the 41 NBRI bulletins we have passed on since Sun 20 Sept: Mawanella (38), Kegalle (31), Warakapola (27).
A record of past bulletins, not a forecast. Not being listed doesn’t mean safe.
Steep terrain
About 10 km of it runs through steep terrain (slopes over 30° beside the road).
Terrain beside the road, from a satellite elevation model: not the road’s gradient and not a landslide hazard rating.
How to read this
- Not an official service. NBRI’s warnings are passed on as issued.
- Rain levels compare each division with its own satellite record since 2000. Satellites can miss heavy local downpours.
- Gauge sources: Department of Meteorology and Irrigation Department gauge readings, passed on as published. Met gauge sites are approximate. Compared with each division's own satellite record since 2000. This is not a warning and does not replace NBRI's levels. Satellites can miss heavy local downpours, so it never means a road is safe. Satellite data up to 10 Nov, 03:30. Checked Tue 10 Nov, 08:50.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Warakapola | Watch | 37 |
| Kegalle | Watch | 61 |
| Mawanella | Watch | 74 |
| Yatinuwara | Watch | 86 |
| Udunuwara | Watch | 89 |
| Udapalatha | Watch | 100 |
| Kothmale East | Watch | 122 |
Rain on route
×Moderate rain, up to 34.1 mm in 24 h
Rain gauges near your route
Key
- 1 Katunayake, 14.7 mm, moderate rain
- 2 Dunamale, 34.1 mm, moderate rain
- 18 Nuwara Eliya, 9.4 mm, light rain
15 gauges not reporting.
Gauge coverage: most of the route.
NBRI's warning stays in force after rain eases.
Satellite estimate
- Last 3 days: among the wettest 5% of 3-day periods since 2000 in Warakapola, Galigamuwa, Kegalle, Rambukkana +6.
Rain outlook (computer model) · Next day: Chance of a rare wet day
- Next day: a chance of a wet day of the kind that comes about 1–2 days a month in Mirigama, Warakapola, Galigamuwa, Kegalle +7 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 11 Nov, 05:30)
- Next 3 days: a chance of a wet day of the kind that comes about 1–2 days a month in Katana, Minuwangoda, Attanagalla, Mirigama +10 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 13 Nov, 05:30)
- "Not signalled" never means dry or safe. This is a computer model, not a warning, and it never changes NBRI's levels. Like the satellite, it reads hill-country rain low and can miss heavy local downpours.
- ECMWF ensemble forecast (open data, CC BY 4.0), run 9 Nov, 17:30, compared with each division's own satellite record.
Weather forecast (Met Dept)
×No advisory for this road
- No Department of Meteorology advisory is in force for Gampaha, Kegalle, Kandy and Nuwara Eliya.
- Forecast issued 10 Nov, 05:30
- Showers or thundershowers will occur at times in the Northern province and in Trincomalee district.
- Showers or thundershowers will occur elsewhere in the island after 1.00 p.m.
- Covers Kegalle, Kandy, Nuwara Eliya and Gampaha 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 Kegalle, Kandy, Nuwara Eliya and Gampaha 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.
- 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 11 named rivers · 3 basins · rain upstream of Mahaweli Ganga: Rare here (1–2 days a month)
Attanagala Oya · Maha Oya · Mahaweli Ganga
River basins along this road
- km 0–43 · Attanagala Oya basin
- km 43–88 · Maha Oya basin
- km 88–92 · Mahaweli Ganga basin
- km 92–98 · Maha Oya basin
- km 98–158 · Mahaweli Ganga basin
Satellite rain over these basins
- Attanagala Oya basin · Last 3 days: Unusual here (3 days a month)
- Maha Oya basin · Last 3 days: Unusual here (3 days a month)
- Mahaweli Ganga basin · Last 3 days: Unusual here (3 days a month)
A whole-basin satellite average against that basin’s own record since 2000, not the area upstream of any one point. Satellites under-read hill rain. Not a warning.
Where this road crosses a river or stream
- km 3 · Krmbulapitiya Oya (Attanagala Oya basin)
101 km² drain to this point - km 23 · Diyaelle Oya (Attanagala Oya basin) · flows west
103 km² drain to this point - km 33 · Diyaelle Oya (Attanagala Oya basin) · flows north-west
21 km² drain to this point - km 44–47 · Kuda Oya (Maha Oya basin) · 2 crossings · flows north
54 km² drain to this point - km 54 · Rogala Oya (Maha Oya basin) · flows north-east
3.6 km² drain to this point - km 55–57 · Galigamuwa Oya (Maha Oya basin) · 2 crossings · flows west
8.5 km² drain to this point - km 78 · Maha Oya · flows west
199 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 80–82 · Hingul Oya (Maha Oya basin) · 3 crossings · flows west
39 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)): 20.2 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:11.
River level 3.64 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5, minor flood 7, major flood 9 m) - km 110–111 · Atabaga Oya (Mahaweli Ganga basin) · 2 crossings · flows south
44 km² drain to this point - km 124 · Gamburu Oya (Mahaweli Ganga basin) · flows south-west
0.3 km² drain to this point - km 149 · Puna Oya (Mahaweli Ganga basin) · flows west
6.8 km² drain to this point
And 4 more unnamed streams on our map
Where this road runs beside a river
- km 81–82 · beside the Hingul Oya
Rivers and basins come from our own map of Sri Lanka’s river network. Flow direction, where shown, is worked out from the height of the land. This is orientation only, not a flood warning.
The area draining to a crossing is worked out from a terrain model (about 90 m cells) and is approximate. The rain over it is the satellite average for that same area, against its own record since 2000. Areas under about 150 km² are smaller than the satellite can see, so they show no rain.
River levels are the Irrigation Department’s own readings at its gauge, against its own thresholds. This is not a flood warning: flood warnings come from the Irrigation Department and DMC.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Dehiovita | Alert | 69 |
| Ambagamuwa | Alert | 108 |
| Seethawaka | Watch | 48 |
| Yatiyanthota | Watch | 83 |
| Pasbage Korale | Watch | 125 |
| Kothmale West | Watch | 142 |
Rain on route
×Heavy rain, up to 126.5 mm in 24 h
Rain gauges near your route
Key
- 1 Katunayake, 14.7 mm, moderate rain
- 2 Nagalagam Street, 0 mm, dry
- 3 Hanwella, 28.6 mm, moderate rain
- 5 Penrith Estate, 126.5 mm, heavy rain
- 15 Kithulgala, 35.9 mm, moderate rain
- 19 Nawalapitiya, 36.6 mm, moderate rain
- 22 Upper Kotmale, 15.9 mm, moderate rain
- 26 Nuwara Eliya, 9.4 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 Dehiovita.
Rain outlook (computer model) · Next day: Chance of a rare wet day
- Next day: a chance of a wet day of the kind that comes about 1–2 days a month in Yatiyanthota, Ambagamuwa, Pasbage Korale, Kothmale West +2 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 11 Nov, 05:30)
- Next 3 days: a chance of a wet day of the kind that comes about 1–2 days a month in Katana, Ambagamuwa, Pasbage Korale, Kothmale West +2 (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 Gampaha, Colombo, Kegalle, Nuwara Eliya and Kandy.
- Forecast issued 10 Nov, 05:30
- Showers or thundershowers will occur at times in the Northern province and in Trincomalee district.
- Showers or thundershowers will occur elsewhere in the island after 1.00 p.m.
- Covers Kegalle, Kandy, Nuwara Eliya, Colombo and Gampaha 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 Kegalle, Kandy, Nuwara Eliya, Colombo and Gampaha 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.
- 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 · Kelani Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Kelani Ganga: Rare here (1–2 days a month)
Attanagala Oya · Kelani Ganga · Mahaweli Ganga
River basins along this road
- km 0–12 · Attanagala Oya basin
- km 12–119 · Kelani Ganga basin
- km 119–190 · Mahaweli Ganga basin
Satellite rain over these basins
- Kelani Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Attanagala 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 8 · Dondugam Oya (Attanagala Oya basin) · flows south-west
751 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month) - km 12–13 · Old Negombo channel (Kelani Ganga basin) · 3 crossings
0.7 km² drain to this point - km 12 · Ja Ela (Attanagala Oya basin)
4.8 km² drain to this point - km 18 · Old Negombo channel (Kelani Ganga basin)
3.4 km² drain to this point - km 22 · Old Negombo channel (Kelani Ganga basin) · flows south-west
50 km² drain to this point - km 26 · Old Negombo channel (Kelani Ganga basin)
4.3 km² drain to this point - km 36–38 · Kelani Ganga · 2 crossings · flows south-west
2,060 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Hanwella, an Irrigation Department gauge 15 km upstream (1,820 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 28.6 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:03.
River level 6.17 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 6.5, minor flood 7.5, major flood 9.5 m) - km 38 · Maha Ela (Kelani Ganga basin) · 2 crossings
24 km² drain to this point - km 43–47 · Kelani Ganga · 3 crossings · flows west
1,937 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Hanwella, an Irrigation Department gauge 3.9 km upstream (1,820 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 28.6 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:03.
River level 6.17 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 6.5, minor flood 7.5, major flood 9.5 m) - km 48 · Puswell Oya (Kelani Ganga basin)
1,937 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 69 · Gatahatta oya (Kelani Ganga basin) · flows north
51 km² drain to this point - km 80 · Godellakumbura Ela (Kelani Ganga basin) · flows west
17 km² drain to this point - km 86–89 · Kelani Ganga · 2 crossings · flows south-west
542 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Kithulgala, an Irrigation Department gauge 14.7 km upstream (425 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 35.9 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:06.
River level 2.24 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 89 · Madelle Oya (Kelani Ganga basin) · flows north
542 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 90 · Ekki Oya (Kelani Ganga basin) · flows west
537 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 95 · Kelani Ganga · flows west
506 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Kithulgala, an Irrigation Department gauge 8.9 km upstream (425 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 35.9 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:06.
River level 2.24 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 102 · Bibili Oya (Kelani Ganga basin) · flows south
488 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 104 · Girankitte Oya (Kelani Ganga basin) · flows south-west
470 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 108 · Kelani Ganga · flows west
418 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Kithulgala, an Irrigation Department gauge 2 km downstream (425 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 35.9 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:06.
River level 2.24 m · Below Alert · rising over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 120–123 · Mahaweli Ganga · 5 crossings · flows east
14 km² drain to this point
Nawalapitiya, an Irrigation Department gauge 8.7 km downstream (187 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 36.6 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:01.
River level 1.72 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 5, major flood 6 m) - km 127 · Mahaweli Ganga · flows east
72 km² drain to this point
Nawalapitiya, an Irrigation Department gauge 4.4 km downstream (187 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 36.6 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:01.
River level 1.72 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 5, major flood 6 m) - km 132 · Mahaweli Ganga · flows north-east
145 km² drain to this point
Nawalapitiya, an Irrigation Department gauge 0.3 km upstream (187 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 36.6 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:01.
River level 1.72 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 5, major flood 6 m) - km 166–168 · Kotmale Oya (Mahaweli Ganga basin) · 4 crossings · flows west
303 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 168–171 · Dambagastalawa Oya (Mahaweli Ganga basin) · 5 crossings · flows north
211 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
irr-calidonia, an Irrigation Department gauge 5.4 km upstream (186 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): no report.
River level: no current data - km 177 · Nanu Oya (Mahaweli Ganga basin) · flows west
67 km² drain to this point - km 184–186 · Nanu Oya (Mahaweli Ganga basin) · 3 crossings · flows north-west
24 km² drain to this point
And 26 more unnamed streams on our map
Where this road runs beside a river
- km 43–44 · beside the Kelani Ganga
- km 119–121 · beside the Mahaweli Ganga
- km 170–171 · beside the Dambagastalawa Oya
- km 184–185 · beside the Nanu Oya
Rivers and basins come from our own map of Sri Lanka’s river network. Flow direction, where shown, is worked out from the height of the land. This is orientation only, not a flood warning.
The area draining to a crossing is worked out from a terrain model (about 90 m cells) and is approximate. The rain over it is the satellite average for that same area, against its own record since 2000. Areas under about 150 km² are smaller than the satellite can see, so they show no rain.
River levels are the Irrigation Department’s own readings at its gauge, against its own thresholds. This is not a flood warning: flood warnings come from the Irrigation Department and DMC.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Walapane | Alert | 160 |
| Thumpane | Watch | 95 |
| Hanguranketha | Watch | 143 |
| Mathurata | Watch | 152 |
Rain on route
×Moderate rain, up to 22.8 mm in 24 h
Rain gauges near your route
Key
- 1 Katunayake, 14.7 mm, moderate rain
- 2 Badalgama, 22.8 mm, moderate rain
- 5 Giriulla, 17.3 mm, moderate rain
- 9 Kurunegala, 18.4 mm, moderate rain
- 15 Katugastota, 1.2 mm, light rain
- 28 Nuwara Eliya, 9.4 mm, light 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 Polgahawela, Weerambugedara, Kurunegala, Mallawapitiya +10.
Rain outlook (computer model) · Next day: Chance of a rare wet day
- Next day: a chance of a wet day of the kind that comes about 1–2 days a month in Mirigama, Alawwa, Narammala, Polgahawela +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 Katana, Divulapitiya, Mirigama, Alawwa +15 (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 Gampaha, Kurunegala, Kandy and Nuwara Eliya.
- Forecast issued 10 Nov, 05:30
- Showers or thundershowers will occur at times in the Northern province and in Trincomalee district.
- Showers or thundershowers will occur elsewhere in the island after 1.00 p.m.
- Covers Kandy, Nuwara Eliya and Gampaha 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, Nuwara Eliya, Gampaha 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 14 named rivers · 4 basins · rain upstream of Mahaweli Ganga: Rare here (1–2 days a month)
Attanagala Oya · Maha Oya · Deduru Oya …
River basins along this road
- km 0–5 · Attanagala Oya basin
- km 5–32 · Maha Oya basin
- km 32–38 · Attanagala Oya basin
- km 38–64 · Maha Oya basin
- km 64–80 · Deduru Oya basin
- km 80–85 · Maha Oya basin
- km 85–101 · Deduru Oya basin
- km 101–196 · Mahaweli Ganga basin
Satellite rain over these basins
- Attanagala Oya basin · Last 3 days: Unusual here (3 days a month)
- Maha Oya basin · Last 3 days: Unusual here (3 days a month)
- 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 3 · Krmbulapitiya Oya (Attanagala Oya basin)
101 km² drain to this point - km 16 · Dunagaha Ela (Attanagala Oya basin) · flows west
24 km² drain to this point - km 25 · Kuda Oya (Maha Oya basin) · flows north
8.1 km² drain to this point - km 42 · Maha Oya · flows north-west
912 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Giriulla, an Irrigation Department gauge 5.8 km downstream (1,145 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 17.3 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:04.
River level 2.84 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5.5, minor flood 6.5, major flood 7.5 m) - km 45–46 · Kuda Oya (Maha Oya basin) · 2 crossings · flows south-east
199 km² drain to this point · rain over that area, Last 3 days: Unusual here (3 days a month) - km 48 · Midella Ela (Maha Oya basin)
132 km² drain to this point - km 53–54 · Meda Ela (Maha Oya basin) · 2 crossings · flows north
58 km² drain to this point - km 60–61 · Gondara Ela (Maha Oya basin) · 2 crossings · flows south
4.2 km² drain to this point - km 66 · Rekawa Ela (Deduru Oya basin) · flows west
15 km² drain to this point - km 74 · Magur Oya (Deduru Oya basin) · flows north-west
1.3 km² drain to this point - km 76 · Getuwana Ela (Deduru Oya basin) · flows north
0.3 km² drain to this point - km 87 · Kaspatu Oya (Deduru Oya basin) · flows north-west
41 km² drain to this point - km 94–99 · Dik Oya (Deduru Oya basin) · 4 crossings · flows north-west
2.2 km² drain to this point - km 95 · Narankaha Ela (Deduru Oya basin) · flows south-west
16 km² drain to this point - km 112 · Mahaweli Ganga · flows north
1,194 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Peradeniya, an Irrigation Department gauge 9.7 km upstream (1,143 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 20.2 mm in the 24 hours to 9 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 08:11.
River level 3.64 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5, minor flood 7, major flood 9 m) - km 143 · Maha Oya (Mahaweli Ganga basin) · flows north
108 km² drain to this point
And 8 more unnamed streams on our map
Where this road runs beside a river
- km 45–46 · beside the Kuda Oya
- km 98–99 · 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.