Rainfall Warning Issued for Fraser Valley as Atmospheric River Brings Heavy Precipitation
This alert is no longer in effect.
ECCC issued it on April 4, 2026, 4 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
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Environment Canada has issued a rainfall warning for the Fraser Valley, with 100 to 120 mm of rain expected through Friday, raising risks of flooding and landslides.
Read this weather record in 30 seconds
- Record type
- Rainfall Warning
- Affected area
- Fraser Valley, British Columbia
- Issued
- April 4, 2026
- Issuing authority
- ECCC
The warning type, named area, and issue time define this record. Confirm all three against the original agency notice before treating it as current.
Record status: historical. It was issued 4 months ago; use the issuing agency's live warning service for current conditions in Fraser Valley, British Columbia.
Alert Details
Environment Canada has issued a yellow rainfall warning for the Fraser Valley. This alert is part of a prolonged atmospheric river event currently impacting the South Coast of British Columbia. The warning indicates that significant impacts are expected due to the volume of rainfall.
Affected Areas
The warning is in effect for the Fraser Valley, specifically including the western region and the city of Abbotsford.
What You Should Do
Residents are advised to exercise caution as water is likely to pool on roads and in low-lying areas, which may lead to travel delays. Environment Canada recommends that residents continue to monitor local alerts and forecasts. Severe weather can be reported via email to BCstorm@ec.gc.ca or on X using the hashtag #BCStorm.
Expected Conditions
Total rainfall amounts are expected to reach between 100 and 120 mm by Friday, with higher totals possible near mountain ranges. A combination of heavy rain and snowmelt from higher elevations—where freezing levels are currently between 2000 and 2500 metres—may lead to enhanced river responses and potential flooding. Additional hazards include an enhanced risk of landslides due to saturated landscapes, as well as extensive water pooling or washouts on roadways.
Timeline
The atmospheric river will remain over the region through Friday. A second heavy rain event is expected from Thursday night into Friday morning. Conditions are forecast to begin tapering off midday Friday as a cold front moves across the Lower Mainland. Following the front, strong southwesterly winds will develop Friday afternoon, and freezing levels are projected to drop significantly to 500 to 1000 metres by Saturday.
Original source: ECCC Official Notice ↗
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