Alert on 16 km between Watawala and Nawalapitiya
Around Watawala and Ginigathhena, km 12–29.
Also: Watch on 70 km between Hatton and Galagedara
You reach it about Tue 10:35, 30 min after leaving, and are through it by Tue 11:05.
NBRI’s bulletin is valid until Tue 20:00, so it covers that time.
Since the rainfall within the past 24 hours has exceeded 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.
- Hatton
Watchkm 0–12 - Watawala to Ginigathhena
Alertkm 12–29 - Nawalapitiya to Gampola
Watchkm 29–72 - Not listedkm 72–73
- near Hedeniya
Watchkm 73–80 - Hedeniya
Not listedkm 80–85 - Galagedara
Watchkm 85–92 - Mawathagama to Kurunegala
Not listedkm 92–117
Alert on 23 km between Watawala and Kithulgala
Around Watawala and Ginigathhena, km 12–35.
Also: Watch on 75 km between Hatton and Alawwa
You reach it about Tue 10:35, 30 min after leaving, and are through it by Tue 11:20.
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.
- Hatton
Watchkm 0–12 - Watawala to Ginigathhena
Alertkm 12–35 - Kithulgala to Alawwa
Watchkm 35–98 - Kurunegala
Not listedkm 98–132
Alert on 31 km near Kithulgala
km 14–46.
Also: Watch on 53 km between Hatton and Kegalle
You reach it about Tue 10:35, 30 min after leaving, and are through it by Tue 11:40.
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.
- Hatton to Dickoya
Watchkm 0–15 - near Kithulgala
Alertkm 15–46 - Kithulgala to Kotiyakumbura
Watchkm 46–80 - between Kotiyakumbura and Kegalle
Not listedkm 80–97 - Kegalle
Watchkm 97–101 - Polgahawela to Kurunegala
Not listedkm 101–131
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 Hatton–Kurunegala road
The fastest road we know from Hatton to Kurunegala is 117 km, about 3 h 30 min, via Nawalapitiya, Gampola.
Main roads on it: Kandy-Kurunegala Road (22 km), Hatton Road (17 km), Gampola-Nawalapitiya Road (15 km).
We show 3 roads between them, fastest first.
DS divisions on this road
It passes through 14 DS divisions in 3 districts, in travel order:
- Norwood
- Ambagamuwa
- Pasbage Korale
- Ganga Ihala Korale
- Udapalatha
- Udunuwara
- Kandy Four Gravets & Gangawata Korale
- Yatinuwara
- Harispattuwa
- Thumpane
- Pujapitiya
- Mawathagama
- Mallawapitiya
- Kurunegala
Past NBRI bulletins
Most often listed on this road, in the 41 NBRI bulletins we have passed on since Sun 20 Sept: Yatinuwara (27), Ambagamuwa (23), Thumpane (22).
A record of past bulletins, not a forecast. Not being listed doesn’t mean safe.
Steep terrain
About 4 km of it runs through steep terrain (slopes over 30° beside the road). The longest stretch is between Watawala and Ginigathhena.
Terrain beside the road, from a satellite elevation model: not the road’s gradient and not a landslide hazard rating.
How to read this
- Not an official service. NBRI’s warnings are passed on as issued.
- Rain levels compare each division with its own satellite record since 2000. Satellites can miss heavy local downpours.
- Gauge sources: Department of Meteorology and Irrigation Department gauge readings, passed on as published. Met gauge sites are approximate. Compared with each division's own satellite record since 2000. This is not a warning and does not replace NBRI's levels. Satellites can miss heavy local downpours, so it never means a road is safe. Satellite data up to 10 Nov, 04:30. Checked Tue 10 Nov, 10:10.
Landslide (NBRI)
×| Warned DS division | Level | From km |
|---|---|---|
| Ambagamuwa | Alert | 12 |
| Norwood | Watch | 0 |
| Pasbage Korale | Watch | 29 |
| Ganga Ihala Korale | Watch | 41 |
| Udapalatha | Watch | 48 |
| Udunuwara | Watch | 57 |
| Yatinuwara | Watch | 73 |
| Thumpane | Watch | 85 |
Rain on route
×Heavy rain, up to 123.6 mm in 24 h
Rain gauges near your route
Key
- 1 Hatton (NBRI), 123.6 mm, heavy rain
- 3 Norton, 14.2 mm, moderate rain
- 4 Watawala (NBRI), 90.8 mm, fairly heavy rain
- 5 Ginigathhena (NBRI), 84 mm, fairly heavy rain
- 6 Nawalapitiya (NBRI), 90.8 mm, fairly heavy rain
- 7 Nawalapitiya, 77.2 mm, fairly heavy rain
- 8 Ulapane (NBRI), 24.2 mm, moderate rain
- 9 Gampola (NBRI), 0 mm, dry
- 10 Daskara (NBRI), 1.2 mm, light rain
- 11 Hindagala (NBRI), 31.2 mm, moderate rain
- 12 Peradeniya, 16 mm, moderate rain
- 13 Muruthalawa (NBRI), 13.2 mm, moderate rain
- 14 Galagedara (NBRI), 14 mm, moderate rain
- 16 Walpolakanda (NBRI), 7.6 mm, light rain
- 17 Kurunegala, 18.4 mm, moderate rain
2 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 Norwood, Ambagamuwa, Pasbage Korale, Ganga Ihala Korale +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 Norwood, Ambagamuwa, Pasbage Korale, Ganga Ihala Korale +10 (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 Norwood, Ambagamuwa, Pasbage Korale, Ganga Ihala Korale +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 Nuwara Eliya, Kandy and Kurunegala.
- 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 and Nuwara Eliya 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 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.
- 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 7 named rivers · 3 basins · rain upstream of Mahaweli Ganga: Rare here (1–2 days a month)
Mahaweli Ganga · Deduru Oya · Maha Oya
River basins along this road
- km 0–87 · Mahaweli Ganga basin
- km 87–103 · Deduru Oya basin
- km 103–107 · Maha Oya basin
- km 107–117 · Deduru 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)
- Maha 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 6 · Mahaweli Ganga · 2 crossings · flows north-west
11 km² drain to this point - km 11–30 · Mahaweli Ganga · 17 crossings · flows north-west
25 km² drain to this point - km 36–41 · Mahaweli Ganga · 4 crossings · flows north
187 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Nawalapitiya, an Irrigation Department gauge 1.2 km upstream (187 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 77.2 mm in the 24 hours to 10 Nov, 08:30 (Fairly heavy); 0 mm in the 3 hours to 10 Nov, 10:01.
River level 1.66 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3.5, minor flood 5, major flood 6 m) - km 64–67 · Geli Oya (Mahaweli Ganga basin) · 2 crossings · flows north-east
12 km² drain to this point - km 66 · Mada Ela (Mahaweli Ganga basin) · flows north-west
20 km² drain to this point - km 89–94 · Dik Oya (Deduru Oya basin) · 4 crossings · flows north-west
2.2 km² drain to this point - km 93 · Narankaha Ela (Deduru Oya basin) · flows south-west
16 km² drain to this point - km 100 · Kaspatu Oya (Deduru Oya basin) · flows north-west
41 km² drain to this point - km 112 · Getuwana Ela (Deduru Oya basin) · flows north
0.3 km² drain to this point
And 2 more unnamed streams on our map
Where this road runs beside a river
- km 5–6 · beside the Mahaweli Ganga
- km 14–15 · beside the Mahaweli Ganga
- km 18–20 · beside the Mahaweli Ganga
- km 21–23 · beside the Mahaweli Ganga
- km 23–24 · beside the Mahaweli Ganga
- km 40–41 · beside the Mahaweli Ganga
- km 88–90 · 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 |
|---|---|---|
| Ambagamuwa | Alert | 12 |
| Norwood | Watch | 0 |
| Yatiyanthota | Watch | 35 |
| Ruwanwella | Watch | 64 |
| Warakapola | Watch | 77 |
Rain on route
×Heavy rain, up to 149 mm in 24 h
Rain gauges near your route
Key
- 1 Hatton (NBRI), 123.6 mm, heavy rain
- 3 Norton, 14.2 mm, moderate rain
- 4 Watawala (NBRI), 90.8 mm, fairly heavy rain
- 5 Ginigathhena (NBRI), 84 mm, fairly heavy rain
- 6 Kalugala (NBRI), 149 mm, heavy rain
- 7 Kithulgala, ≥ 52 mm, fairly heavy rain or more (incomplete day)
- 8 Kitulgala (NBRI), 65.2 mm, fairly heavy rain
- 9 Theligama (NBRI), 70.6 mm, fairly heavy rain
- 12 Yatiyanthota (NBRI), 77.8 mm, fairly heavy rain
- 13 Galapitamada (NBRI), 18.8 mm, moderate rain
- 15 Alawwa (NBRI), 5.8 mm, light rain
- 16 Maharachchimulla (NBRI), 5.6 mm, light rain
- 17 Polgahawela (NBRI), 4.4 mm, light rain
- 18 Kurunegala, 18.4 mm, moderate rain
4 gauges not reporting.
Gauge coverage: most of the route.
NBRI's warning stays in force after rain eases.
Satellite estimate
- Last 3 days: among the wettest 5% of 3-day periods since 2000 in Norwood, Ambagamuwa, Yatiyanthota, Ruwanwella +4.
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 Norwood, Ambagamuwa, Yatiyanthota, Warakapola +5 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 11 Nov, 05:30)
- Next 3 days: a chance of a wet day of the kind that comes about 1–2 days a month in Norwood, Ambagamuwa, Ruwanwella, Warakapola +5 (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 Nuwara Eliya, Kegalle and Kurunegala.
- 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 and Nuwara Eliya 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, Nuwara Eliya 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.
- 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 20 named rivers · 4 basins · Kelani Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Golkadulla Ela: Rare here (1–2 days a month)
Mahaweli Ganga · Kelani Ganga · Maha Oya …
River basins along this road
- km 0–23 · Mahaweli Ganga basin
- km 24–77 · Kelani Ganga basin
- km 77–119 · Maha Oya basin
- km 119–132 · Deduru Oya basin
Satellite rain over these basins
- Kelani Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Mahaweli Ganga 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)
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 6 · Mahaweli Ganga · 2 crossings · flows north-west
11 km² drain to this point - km 11–23 · Mahaweli Ganga · 11 crossings · flows north-west
25 km² drain to this point - km 35 · 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)): at least 52 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:08.
River level 1.97 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 38 · 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 41 · 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 47 · 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)): at least 52 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:08.
River level 1.97 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 52 · 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 54 · Kelani Ganga · 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)): at least 52 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:08.
River level 1.97 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 54 · 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 57 · Welibela Oya (Kelani Ganga basin)
633 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 59 · Kelani Ganga · flows south-west
637 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Glencourse, an Irrigation Department gauge 17.3 km downstream (1,531 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): 12 mm in the 24 hours to 10 Nov, 08:30 (Moderate); 0 mm in the 3 hours to 10 Nov, 10:07.
River level 13.05 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 15, minor flood 15.5, major flood 19 m) - km 66 · Gurugoda Oya (Kelani Ganga basin) · flows south-west
332 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Holombuwa, an Irrigation Department gauge 16.3 km upstream (154 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): at least 3.9 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:04.
River level 1.2 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 84–86 · Kuda Oya (Maha Oya basin) · 2 crossings · flows north-west
24 km² drain to this point - km 90 · Kuda Oya (Maha Oya basin) · flows north-east
54 km² drain to this point - km 92 · Kongaha Ela (Maha Oya basin)
59 km² drain to this point - km 94 · Golkadulla Ela (Maha Oya basin) · flows north-west
779 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 95 · Paluwatta Ela (Maha Oya basin)
776 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 97 · Wedikondo Ela (Maha Oya basin) · flows north-west
773 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 97 · Kuda Oya (Maha Oya basin) · flows north
773 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 98 · Maha Oya · flows south-west
773 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month)
Giriulla, an Irrigation Department gauge 19.8 km downstream (1,145 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): at least 39.7 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:03.
River level 2.64 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 5.5, minor flood 6.5, major flood 7.5 m) - km 102–104 · Pit Ela (Maha Oya basin) · 3 crossings · flows north-east
3.6 km² drain to this point - km 104 · Pin Ela (Maha Oya basin) · flows north
14 km² drain to this point - km 109 · Meda Ela (Maha Oya basin) · flows north-west
58 km² drain to this point - km 116–117 · Gondara Ela (Maha Oya basin) · 2 crossings · flows south
5.7 km² drain to this point - km 122 · Rekawa Ela (Deduru Oya basin) · flows west
15 km² drain to this point - km 130 · Magur Oya (Deduru Oya basin) · flows west
26 km² drain to this point
And 2 more unnamed streams on our map
Where this road runs beside a river
- km 5–6 · beside the Mahaweli Ganga
- km 14–15 · beside the Mahaweli Ganga
- km 18–20 · beside the Mahaweli Ganga
- km 21–23 · beside the Mahaweli 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 |
|---|---|---|
| Ambagamuwa | Alert | 15 |
| Norwood | Watch | 0 |
| Yatiyanthota | Watch | 46 |
| Bulathkohupitiya | Watch | 69 |
| Kegalle | Watch | 97 |
Rain on route
×Heavy rain, up to 149 mm in 24 h
Rain gauges near your route
Key
- 1 Hatton (NBRI), 123.6 mm, heavy rain
- 2 Castlereigh, 6 mm, light rain
- 3 Lethenty Tea Estate (NBRI), 122.8 mm, heavy rain
- 4 Norton, 14.2 mm, moderate rain
- 5 Norton (NBRI), 83.6 mm, fairly heavy rain
- 6 Laxapana, 12.4 mm, moderate rain
- 7 Kalugala (NBRI), 149 mm, heavy rain
- 8 Ginigathhena (NBRI), 84 mm, fairly heavy rain
- 9 Kithulgala, ≥ 52 mm, fairly heavy rain or more (incomplete day)
- 10 Kitulgala (NBRI), 65.2 mm, fairly heavy rain
- 11 Theligama (NBRI), 70.6 mm, fairly heavy rain
- 14 Wee Oya (NBRI), 68.2 mm, fairly heavy rain
- 15 Gatiyamulla (NBRI), 8.2 mm, light rain
- 16 Galapitamada (NBRI), 18.8 mm, moderate rain
- 17 Holombuwa, ≥ 3.9 mm, light rain or more (incomplete day)
- 19 Kegalu MV (NBRI), 6.4 mm, light rain
- 20 Polgahawela (NBRI), 4.4 mm, light rain
- 21 Kurunegala, 18.4 mm, moderate rain
3 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 Norwood, Ambagamuwa, Yatiyanthota, Bulathkohupitiya +5.
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 Norwood, Ambagamuwa, Yatiyanthota, Bulathkohupitiya +5 (the wettest 5% of days there; several times the usual chance). (10 Nov, 05:30 to 11 Nov, 05:30)
- Next 3 days: a chance of a wet day of the kind that comes about 1–2 days a month in Norwood, Ambagamuwa, Bulathkohupitiya, Galigamuwa +4 (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 Nuwara Eliya, Kegalle and Kurunegala.
- 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 and Nuwara Eliya 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, Nuwara Eliya 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.
- 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 · Kelani Ganga basin rain: Rare here (1–2 days a month) · rain upstream of Maha Oya: Rare here (1–2 days a month)
Mahaweli Ganga · Kelani Ganga · Maha Oya …
River basins along this road
- km 0–2 · Mahaweli Ganga basin
- km 2–94 · Kelani Ganga basin
- km 94–119 · Maha Oya basin
- km 119–131 · Deduru Oya basin
Satellite rain over these basins
- Kelani Ganga basin · Last 3 days: Rare here (1–2 days a month)
- Mahaweli Ganga 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)
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 11–17 · Kehelgama Ganga (Kelani Ganga basin) · 7 crossings · flows north-west
148 km² drain to this point - km 46 · 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)): at least 52 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:08.
River level 1.97 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 49 · 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 52 · 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 58 · 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)): at least 52 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:08.
River level 1.97 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 63 · 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 67 · We Oya (Kelani Ganga basin) · flows south-west
73 km² drain to this point - km 72–73 · Ritigaha Oya (Kelani Ganga basin) · 2 crossings · flows south
82 km² drain to this point - km 79 · Haloluwa Ela (Kelani Ganga basin) · flows north-west
217 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 80 · Babaragaha Ela (Kelani Ganga basin) · flows west
6.9 km² drain to this point - km 89 · Gurugoda Oya (Kelani Ganga basin) · flows west
119 km² drain to this point
Holombuwa, an Irrigation Department gauge 4.3 km downstream (154 km² upstream · rain over that area, Last 3 days: Rare here (1–2 days a month)): at least 3.9 mm in the 24 hours to 10 Nov, 08:30 (1 hourly reading missing); 0 mm in the 3 hours to 10 Nov, 10:04.
River level 1.2 m · Below Alert · falling over about 3 hours (Department’s thresholds: Alert 3, minor flood 4, major flood 6 m) - km 95 · Galigamuwa Oya (Maha Oya basin) · flows north-west
4.6 km² drain to this point - km 105 · Ambodeniya Ela (Maha Oya basin) · flows north-west
15 km² drain to this point - km 109 · Maha Oya · flows south-west
558 km² drain to this point · rain over that area, Last 3 days: Rare here (1–2 days a month) - km 130 · Magur Oya (Deduru Oya basin) · flows west
26 km² drain to this point
And 5 more unnamed streams on our map
Where this road runs beside a river
- km 11–13 · beside the Kehelgama Ganga
- km 13–14 · beside the Kehelgama 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.
NBRI’s advice, as issued
×Watch · NBRI adviceSince 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, 20:00