The Department of Meteorology expects showers or thundershowers at several places across most of Sri Lanka after 1.00 p.m. on Sunday, with falls above 75 millimetres likely in seven provinces, and the National Building Research Organisation has issued landslide early warnings for eight divisions in four districts.
The forecast was issued at 5.30 a.m. on 4 October, according to the Met Department bulletin carried by Newswire.
Fairly heavy falls above 75 mm are likely at some places in the Central, Sabaragamuwa, Western, Southern, Uva, North-Western and North-Central provinces, Hiru News reported. The department asked the public to take precautions against temporary localised strong winds and lightning during thundershowers. Misty conditions are expected in parts of the Central, Sabaragamuwa and Uva provinces during the early morning.
Where the landslide warnings apply
The NBRO warnings cover Kandy, Kegalle, Matale and Ratnapura, NewsFirst reported, and are split across two alert levels by divisional secretariat division:
- Level Two — Ududumbara and Minipe (Kandy), Dehiowita (Kegalle), Ambanganga Korale and Matale (Matale)
- Level One — Rambukkana (Kegalle), Rattota (Matale), Eheliyagoda (Ratnapura)
Level One asks residents to stay alert to slope failures and rock falls and be ready to move; Level Two raises that to active preparation to evacuate.
A pattern, not a single storm
This is the third advisory in four days. An Amber lightning advisory on 1 October covered six regions, and a severe lightning advisory on 3 October covered the same seven provinces named today plus Mannar. Sunday’s notice is the first of the three to pair the rainfall with ground-stability warnings, which follow accumulated rather than single-day totals.
Daytime heat giving way to afternoon and evening storms is the signature of the second inter-monsoon, which runs through October and November.
Not reported
None of the three accounts gives the hour the NBRO warnings expire, the rainfall recorded in the preceding 24 hours that triggered them, or whether any evacuations have been ordered. Hiru’s and Newswire’s reports carry the rainfall forecast but not the landslide warnings; only NewsFirst reported both together.
A caution for readers searching this story: the NBRO issues similarly worded warnings for overlapping divisions many times a year, and the official NBRO bulletin page that surfaces highest in search results dates from 2022. The reliable discriminator for this edition is the division list above paired with the Level One/Level Two split.
