Thunderstorms and flash floods are possible in Kamloops and the Southern Interior region from Thursday night and into Friday.
Environment Canada has issued a special weather statement warning that a low pressure system will develop over the southwest Interior on Thursday night, resulting in widespread showers with embedded thunderstorms.
Rainfall amounts will be variable across the region, with between 10 millimetres and 20 millimetres expected through Friday afternoon. Any areas affected by thunderstorms could receive in excess of 30 millimetres of rain.
Environment Canada said the higher rainfall amounts, particularly if concentrated over the same area or over unstable slopes, may generate localized 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.
Sunshine and highs in the upper 20s are expected by Sunday and will remain through next week.
To report severe weather, send an email to BCstorm@canada.ca or tweet reports using #BCStorm.