Update: 11:05 a.m. June 19, 2013
The province has issued a high streamflow advisory for many of the rivers in the Interior. Due to the forecast for heavy rainfall it is expected rivers will rise rapidly over the next two days. Rivers in the Thompson, Okanagan, Boundary, West and East Kootenay, Upper Columbia and Lower Columbia are all under advisory.
While all watersheds including the North Thompson, Salmon River, Shuswap River, Eagle River and Mission Creek are included in the advisory small to medium sized watersheds will see the most significant rises.
Environment Canada is also warning the development of severe thunderstorms with large hail, damaging winds and intense lightening will be possible with the system later today.
Update: 8:55 a.m. June 19, 2013
A system expected to bring between 40-60 millimetres of rain over the next two days has started hitting areas of the Interior this morning as Environment Canada continues a rainfall warning for much of the southern region of province.
The first part of the system is moving up through the Kootenays to the Okanagan and North Thompson areas with rain being reported in cities such as Kelowna and Penticton as of 8 a.m.
Most Southern Interior cities can expect between 10-15 mm of rain during the day with another 15-30 mm expected overnight. Forecasts for Thursday and Friday also call for more periods of rain.
Record precipitation amounts for many of the cities in the Thompson Okanagan are well below the 15 mm mark and if the forecast is correct records could be broken before the end of the day.
- Penticton, 14.2 mm in 1956 (1941-2011)
- Kelowna Airport, 2.5 mm in 2006 (2005-2009)
- Vernon, 9.4 mm in 2006 (1991-2007)
- Salmon Arm, 20.8 mm in 1997 (1991-2012)
- Kamloops, 14.4 mm in 1986 (1951-2012)
Update: 4:15 p.m. June 18, 2013
After issuing a special weather statement early this morning Environment Canada has now issued a heavy rainfall warning for most of the B.C. Interior.
A total of 40-60 millimetres of rain is expected to fall beginning early Wednesday and lasting through Thursday for the Fraser Canyon and Chicoltin areas and almost all regions east to the Alberta border. Higher amounts or rainfall can be expected in some localized areas.
Conditions remain favourable for the development of thunderstorms which could bring large hail, damaging winds and intense lightening as well with the potential for severe thunderstorms this evening.
7:23 a.m. June 18, 2013
Environment Canada has issued a special weather statement today calling for heavy rain, thunder and lightning throughout the B.C. Interior developing today and tomorrow.
The forecast says the weather system is expected to develop today and bring the rain tomorrow and continue to Thursday.
According to forecasters, the challenge is pinpointing where exactly the heaviest amounts will fall. Currently the heaviest amounts are possible in an area stretching from the Central Rockies west to the Chilcotin and south to the U.S. border. Widespread rainfall totals of 40 to 60 mm is expected over a two-day period with locally higher amounts possible especially where rain is enhanced by local topography.
Stay with us as we watch this developing story.