Flash flooding possible

UPDATE 1:56 p.m.

A prediction of heavy rain in parts of B.C.'s Southern Interior has prompted a warning of possible flash flooding.

Environment Canada says residents who live in the Fraser Canyon, Nicola, Okanagan Valley, Similkameen and South Thompson regions all need to be aware of the dangers.

It says rainfall will vary across the regions, but 10 to 20 millimetres of rain is predicted through Friday afternoon and thunderstorms could bring 30 millimetres.

The agency says if that rain concentrates in one area then residents can expect unstable slopes, localized flash flooding or landslides.

- with files from Canadian Press

ORIGINAL 7:11 a.m.

Environment Canada has issued a special weather statement for all of the Okanagan.

The alert was issued early Thursday morning and includes Vernon, Kelowna, and Penticton.

An extended period of rain showers with a risk of localised flash floods is expected to begin Thursday night.

A low-pressure system will develop over the southwest interior tonight resulting in widespread showers with embedded thunderstorms. Rainfall amounts will be variable across the region, but as much as 20 mm is expected through Friday afternoon. Any areas affected by thunderstorms could see higher amounts in excess of 30 mm.

These higher rainfall amounts, particularly if concentrated over the same area or over unstable slopes, may generate localised flash floods or landslides.

Rain showers will continue into Saturday, with additional rainfall amounts. Rain showers will become scattered late on Saturday as the low weakens.


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