Roads, rain and weather

Rain on this road

Last 3 days: Very rare here (a few days a year) · 6 reporting · most: Heavy

• Last 3 days: among the wettest 1% of 3-day periods since 2000 in Dehiovita.
• Last 24 hours: among the wettest 5% of 24-hour periods since 2000 in Norwood, Ambagamuwa, Yatiyanthota, Dehiovita.
• Last 7 days: among the wettest 5% of 7-day periods since 2000 in Norwood, Ambagamuwa, Yatiyanthota, Dehiovita.
• 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, 02:30.

Rain at gauges near this road · 6 reporting · most: Heavy

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0142 km

DryLight rainModerate rainHeavy rainVery heavy rainNo rain report

	Gauge	On the road	Last 24 h
1	Hatton (NBRI)	km 0–3	No rain report
2	Dikoya	km 3–10	No rain report
3	Norton	km 10–11	14.2 mm Moderate rain
4	Watawala (NBRI)	km 11–19	No rain report
5	Ginigathhena (NBRI)	km 19–26	No rain report
6	Kalugala (NBRI)	km 26–35	No rain report
7	Kithulgala	km 35–38	35.9 mm Moderate rainlast 3 h: 0 mm
8	Kitulgala (NBRI)	km 38–41	No rain report
9	Theligama (NBRI)	km 41–50	No rain report
10	Pambegama Tea Factory	km 50–51	No rain report
11	Yatiyantota	km 51–58	No rain report
12	Yatiyanthota (NBRI)	km 58–63	No rain report
13	Dehiowita	km 63–70	No rain report
14	Thalduwa Estate	km 70–72	No rain report
15	Awissawella	km 72–75	No rain report
16	Penrith Estate	km 75–81	126.5 mm Heavy rain
17	Elston	km 78–79	No rain report
18	Salawa Estate	km 81–89	No rain report
19	Hanwella	km 89–105	28.6 mm Moderate rainlast 3 h: 0 mm
20	Nagalagam Street	km 105–129	0 mm Drylast 3 h: 0 mm
21	Katunayake	km 130–142	14.7 mm Moderate rainlast 3 h: 0 mm

• Gauges are near about 141 of the 142 km. Other stretches have no gauge near them, which says nothing about rain there.
• NBRI's warning stays in force after rain eases.
• Department of Meteorology, Irrigation Department and NBRI automatic gauge readings, passed on as published. Met gauge sites are approximate.

Weather forecast (Department of Meteorology)

• No Department of Meteorology advisory is in force for Nuwara Eliya, Kegalle, Colombo and Gampaha.
• 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, 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, 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.
• 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: 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 (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, Katana (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.

None of these changes NBRI’s level.