The Meteorological Department has warned that heavy falls above 100mm are possible at some places in the Western, Sabaragamuwa, Central, Southern and Uva provinces on Thursday.
In a statement reported by Hiru News, the department said showers or thundershowers may occur at times in the Northern and Eastern provinces through the day. Across the rest of the island, showers or thundershowers are expected after 1.00 p.m.
The public has been asked to take steps to minimise damage from the temporary strong winds and lightning that can accompany thundershowers.
The department also advised that misty conditions may persist in the morning in the Western, Sabaragamuwa, Central and Uva provinces and in the Galle, Matara and Kurunegala districts.
What has changed
The 100mm warning area now includes the Southern Province, which was not in the equivalent advisory issued the previous day. The misty-conditions advisory is a separate product covering a different set of areas — it reaches Kurunegala district, which the heavy-rain warning does not.
The advisory extends a wet spell that has already produced flooding and earth slips. LankaNewz has reported flood warnings extended on the Gin Ganga and Attanagalu Oya, the opening of spill gates at the Kotmale reservoir, and a landslide at Gampola.
Separately, forecasters are tracking a depression over the Bay of Bengal expected to bring heavy rain to the east coast from around 15 November.
Sourcing note: this report rests on a single outlet’s account of the Met statement. Figures and province lists above are taken from that statement only, not combined with any other weather product.