Heavy Rain to Hit B.C. South Coast; Orange Warning for Fraser Valley
An atmospheric river is set to bring heavy rain to British Columbia’s South Coast, particularly affecting the Fraser Valley. Environment and Climate Change Canada has issued an orange warning for this region, signaling significant rainfall and potential hazards.
Weather Warnings and Rainfall Predictions
Residents in the central and eastern Fraser Valley, including Chilliwack, Hope, and along western Highway 3, should prepare for rainfall amounts between 70 to 100 millimeters. This weather event is expected to occur from Tuesday night through Wednesday evening.
- Orange Warning: Fraser Valley (Chilliwack, Hope, Highway 3)
- Predicted Rainfall: 70 to 100 mm
- Timeframe: Tuesday night to Wednesday evening
Impact of Rainfall
The warm air accompanying this system will raise freezing levels, causing snowmelt. Combined with already saturated ground conditions, this may lead to high streamflows and localized flooding. Metro Vancouver and parts of the western Fraser Valley are under a yellow warning, with forecasts suggesting rainfall between 50 to 80 mm.
Flood Watches and Advisories
The B.C. River Forecast Centre has issued a flood watch for lower Fraser River tributaries, impacting communities like Abbotsford, Chilliwack, and Hope. This means river levels are rising, and nearby areas may experience flooding.
- Flood Watch Areas: Abbotsford, Chilliwack, Hope, Sumas River, Skagit River, Coquihalla River
- Flood Watch Level: Second-tier warning indicating rising river levels
A high streamflow advisory is also in effect for the central and south coast regions, including Metro Vancouver and Vancouver Island. While rising river levels are anticipated, no major flooding is expected in these areas.
Safety Precautions
Authorities recommend that individuals avoid fast-moving waterways and refrain from driving through flooded roads. With rivers projected to rise further through Thursday, safety is a priority.
Understanding the Orange Warning System
Environment Canada recently updated its weather warning system to include a color-coded risk tier. An orange alert signifies a high likelihood of severe weather resulting in significant damage and disruption. This system aims to better inform Canadians about extreme weather and improve public preparedness.
- Yellow Warning: Hazardous weather with moderate local effects
- Orange Warning: Severe weather likely causing significant impacts
- Red Alert: Extreme, potentially life-threatening conditions
Environment Minister Julie Dabrusin emphasized the benefits of this new system, stating it enhances clarity for Canadians facing frequent extreme weather. With these updates, residents can better understand potential impacts and make informed decisions regarding their safety and property.
