Lankapura
Lankapura DS division · Polonnaruwa district
Outside NBRI’s warning area
NBRI issues no landslide warnings for the districts this road crosses, so the bulletin says nothing about it. This is not a guarantee that the road is safe or open.
Rain here
×Rain here
Last 3 days: Not unusual
- Rain over the last 7 days has not been unusual for the divisions on this route.
- 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 9 Oct, 13:30.
Weather forecast (Department of Meteorology)
- No Department of Meteorology advisory is in force.
- Forecast issued 9 Oct, 14:00
- Showers or thundershowers will occur in the most part of the island after 1.00 p.m.
- Fairly heavy falls above 75 mm are likely at some places in Western, Sabaragamuwa, Central, Uva, North-Western and Southern provinces.
- The general public is kindly requested to take adequate precautions to minimize damage caused by temporary localized strong winds and lightning during thundershowers.
- Misty conditions can be expected at some places in Western, Sabaragamuwa, Central and Uva provinces 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.
Rain outlook (computer model) · Next day: Not signalled
- Next day: unusually heavy rain is not signalled for the divisions on this road. (10 Oct, 05:30 to 11 Oct, 05:30)
- Next 3 days: unusually heavy rain is not signalled for the divisions on this road. (10 Oct, 05:30 to 13 Oct, 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 Oct, 05:30, compared with each division's own satellite record.
None of these changes NBRI’s level.
Weather forecast (Met Dept)
×- No Department of Meteorology advisory is in force.
- Forecast issued 9 Oct, 14:00
- Showers or thundershowers will occur in the most part of the island after 1.00 p.m.
- Fairly heavy falls above 75 mm are likely at some places in Western, Sabaragamuwa, Central, Uva, North-Western and Southern provinces.
- The general public is kindly requested to take adequate precautions to minimize damage caused by temporary localized strong winds and lightning during thundershowers.
- Misty conditions can be expected at some places in Western, Sabaragamuwa, Central and Uva provinces 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 here
×7 named rivers here · 1 basin
River basins this division lies in
- Mahaweli Ganga basin
Satellite rain over these basins
Rain over these basins in the last 7 days has not been unusual against each basin’s own record. That never means safe.
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.
Named rivers through this division
- Mahaweli Ganga · about 24 km inside
- Periya Aru (Mahaweli Ganga basin) · about 17 km inside
- Sipna Ganga (Mahaweli Ganga basin) · about 13 km inside
- Minneri Oya (Mahaweli Ganga basin) · about 12 km inside
- Kahambiliya Oya (Mahaweli Ganga basin) · about 6 km inside
- Odai Periya Aru (Mahaweli Ganga basin) · about 4 km inside
- Ulkolapata Aru (Mahaweli Ganga basin) · about 1 km inside
Irrigation Department gauges on these rivers
- Manampitiya, an Irrigation Department gauge 9.2 km upstream (5,591 km² upstream): 15.6 mm in the 24 hours to 9 Oct, 08:30 (Moderate); 1.5 mm in the 3 hours to 9 Oct, 18:01.
River level -0.32 m · Below Alert · steady over about 3 hours (Department’s thresholds: Alert 3, minor flood 4.3, major flood 6 m)
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.