Alerts: Warnings

[Typeing3]

11:00 AM PST Tuesday 24 December 2024
Rainfall Warning in effect

Rain, at times heavy, is expected.

Where: Metro Vancouver and Squamish.

When: Christmas midday to Boxing Day.

Hazard:
- Local water pooling on the roads
- Travel disruptions
- Possible power outages

Total rainfall accumulations: 50 to 80 mm. For North Shore, northern Coquitlam and Maple Ridge, 100 mm or more is possible.

Remarks: A couple of weather systems are expected to arrive on Christmas and Boxing Day.

During the afternoon of Christmas Day, the weather system will bring heavy rain to Metro Vancouver and Squamish. Over higher terrain above 300 metres elevation, a brief period of wet snow may give slippery conditions.

Rain will continue through Boxing Day as another low pressure system moves close to the South Coast.

Rain will ease to a few possible showers in the afternoon of Boxing Day.

Heavy downpours can cause flash floods and water pooling on roads. Localized flooding in low-lying areas is possible.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or tweet reports using #BCStorm.

[Typeing3]

4:16 AM PST Friday 31 January 2025

Rain, heavy at times is expected. The frozen ground has a reduced ability to absorb this rainfall.

What:
Rainfall amounts approaching 50 mm.

When:
Today and tonight.

Where:
Northern sections of Metro Vancouver and the western Fraser Valley

Additional information:
A low pressure system approaching Metro Vancouver will bring rain today. The rain will taper off late this evening.

Up to 50 mm of rain is forecast, and when combined with areas of frozen or partially frozen ground, runoff may cause localised flooding and water pooling on roads.

Heavy downpours can cause flash floods and water pooling on roads. Be prepared for winter conditions at higher elevations.

Don't approach washouts near rivers, creeks and culverts.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or tweet reports using #BCStorm.

[Typeing3]

8:45 AM PST Saturday 1 February 2025

Snowfall with total amounts of 10 to 20 cm is expected.

Where: Metro Vancouver.

When: Tonight through Monday morning.

Remarks: A wintry mix of weather conditions is expected to impact the South Coast of B.C. through Monday morning. A period of heavy snowfall is expected tonight and Sunday morning. Accumulations will vary widely across the region, ranging from 10 to 20 cm. The highest amounts will likely occur over higher terrain, but other areas may see locally intense flurries giving reduced visibility and heavy snow accumulation. Precipitation will taper off to wet flurries or showers Sunday afternoon. Another round of heavy snow may develop Sunday night into Monday morning.

Visibility may be suddenly reduced at times in heavy snow. Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow.

Prepare for quickly changing and deteriorating travel conditions.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or tweet reports using #BCStorm.

[Typeing3]

10:18 AM PST Sunday 2 February 2025

Snowfall with total amounts of 10 to 20 cm is expected.

Where: Metro Vancouver.

When: Now through Monday morning.

Remarks: A wintry mix of weather conditions is expected to impact the South Coast of B.C. through Monday morning. A period of heavy snowfall is expected this morning. Accumulations will vary widely across the region, ranging from 10 to 20 cm. The highest amounts will likely occur over higher terrain, but other areas may see locally intense flurries giving reduced visibility and heavy snow accumulation. Precipitation will taper off to wet flurries or showers this afternoon. Another round of heavy snow will develop tonight into Monday morning.

Visibility may be suddenly reduced at times in heavy snow. Surfaces such as highways, roads, walkways and parking lots may become difficult to navigate due to accumulating snow.

Prepare for quickly changing and deteriorating travel conditions.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or tweet reports using #BCStorm.

[AbbyJr]

10:49 AM PDT Saturday 22 March 2025

Rainfall Warning in effect for:
Fraser Valley - west including Abbotsford
Rain, at times heavy, is expected.

Significant rainfall and rising freezing levels.

What: Total rainfall amounts 60 to 110 mm.

When: Beginning overnight Saturday, continuing into Monday.

Where: Metro Vancouver - Central including City of Vanouver, Burnaby, and New Westminster, North Shore including West Vancouver and North Vancouver, Northeast including Coquitlam and Maple Ridge, Fraser Valley - West including Abbotsford, Sunshine Coast - Gibsons to Earls Cove.

Remarks: A prolonged period of heavy rain and rising freezing levels will begin overnight tonight. The heaviest rainfall is expected during the day on Sunday and Sunday night; periods of rain will continue into Monday before tapering off in the afternoon. Further east, towards Abbotsford, the heaviest rainfall is expected Sunday night and into Monday morning.

Freezing levels will continue to rise during the day on Sunday and stay significantly elevated into next week.

Total rainfall amounts are expected to vary with location. The highest amounts will be near the coastal mountains, from the Northshore through the Coquitlam region. By Monday afternoon between 80 to 110mm can be expected. The remaining regions can expect 60 to 90mm.

Localized flooding in low-lying areas is possible.

If visibility is reduced while driving, turn on your lights and maintain a safe following distance.

Rainfall warnings are issued when significant rainfall is expected.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

[Typeing3]

4:44 AM PDT Sunday 15 March 2026

Impact Level: Moderate

Forecast Confidence: High

Rain, at times heavy, is expected.

Prolonged atmospheric river event.

When:
This afternoon to Wednesday morning.

Where:
Sunshine Coast, Howe Sound, Metro Vancouver - North Shore and northeast including Coquiltam and Maple Ridge.

Impacts:
-Prolonged heavy rain on snow combined with mountain snow melt will lead to very enhanced responses in river systems and potential for flooding.
-Extensive water pooling on roads and wash-outs may occur.
-Enhanced risk of landslides due to saturation of landscapes.

Remarks:
An atmospheric river will push into the B.C. South Coast beginning later today and remaining over the region until Wednesday morning bringing prolonged periods of heavy rain. Rainfall totals will vary, but between 100 to 150 mm can be expected by Wednesday morning.

Additionally, the rain could be mixed with snow tonight as freezing levels will initially lower to near sea level. Freezing levels will quickly rise to between 2000 and 2500 metres by Monday morning. Snowmelt from higher elevations will increase the risks from this rainfall event.

Water will likely pool on roads and in low-lying areas. Some travel delays are possible. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars.

Don't drive through flooded roadways.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

[Typeing3]

4:59 AM PDT Monday 16 March 2026

Impact Level: Moderate

Forecast Confidence: High

Prolonged Atmospheric River Event

What:
Total rainfall accumulations of 90 to 120 mm.

When:
Now until Wednesday morning.

Where:
- Metro Vancouver-North Shore including West Vancouver and North Vancouver
- Metro Vancouver-northeast including Coquiltam and Maple Ridge
- Howe Sound

Impacts:
-Prolonged heavy rain on snow combined with mountain snow melt could lead to very enhanced responses in river systems and potential for flooding.
-Extensive water pooling on roads and washouts may occur.
-Enhanced risk of landslides due to saturation of landscapes.

Remarks:
An atmospheric river will remain over the B.C. South Coast until Wednesday morning bringing prolonged periods of rain at times heavy. Rainfall totals will vary, but between 90 to 120 mm can be expected by Wednesday morning.

Additionally, freezing levels will rise from near 500 metres to between 2000 and 2500 metres this morning. Snowmelt from higher elevations may increase the impacts associated with this rainfall event.

Water will likely pool on roads and in low-lying areas. Some travel delays are possible. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars.

Don't drive through flooded roadways.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

[Typeing3]

5:01 AM PDT Tuesday 17 March 2026

Impact Level: Moderate

Forecast Confidence: High

Prolonged Atmospheric River Event

What:
Total rainfall amounts of 90 to 120 mm.

When:
Now until Wednesday morning.

Where:
- Metro Vancouver-North Shore including West Vancouver and North Vancouver
- Metro Vancouver-northeast including Coquiltam and Maple Ridge
- Howe Sound

Impacts:
-Prolonged heavy rain on snow combined with mountain snow melt could lead to very enhanced responses in river systems and potential for flooding.
-Extensive water pooling on roads and washouts may occur.
-Enhanced risk of landslides due to saturation of landscapes.

Remarks:
An atmospheric river will remain over the B.C. South Coast until Wednesday morning bringing prolonged periods of rain, at times heavy. Rainfall totals will vary, but between 90 to 120 mm can be expected by Wednesday morning.

Additionally, freezing levels will remain between 2000 and 2500 metres through the period. Snowmelt from higher elevations may increase the impacts associated with this rainfall event.

While this atmospheric river will exit the region on Wednesday, another series of storms is expected to impact the Lower Mainland through the rest of the week. Current indications show another intense rainfall event for Thursday night into Friday morning.

Water will likely pool on roads and in low-lying areas. Some travel delays are possible. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars.

Don't drive through flooded roadways.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

[Typeing3]

4:35 PM PDT Wednesday 18 March 2026

Impact Level: Moderate

Forecast Confidence: High

Rain, at times heavy, continues.

Prolonged Atmospheric River Event

What:
80 to 130mm of rain by Friday

Where:
- Metro Vancouver-North Shore including West Vancouver and North Vancouver
- Metro Vancouver-northeast including Coquiltam and Maple Ridge
- Howe Sound

When:
- Periods of heavy rain continues to Friday

Impacts:
-Prolonged heavy rain on snow combined with mountain snow melt could lead to very enhanced responses in river systems and potential for flooding.
-Extensive water pooling on roads and washouts may occur.
-Enhanced risk of landslides due to saturation of landscapes.

Remarks:
An atmospheric river will remain over the South Coast of B.C. through Friday. With freezing levels near 2000 to 2500 metres, snowmelt from higher elevations may increase the impacts associated with this rainfall event.

Rain will intensify this evening and continue to Friday under the influence of of the atmospheric river. The heaviest rainfall is expected Thursday night into Friday.

Water will likely pool on roads and in low-lying areas. Some travel delays are possible. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars.

Don't drive through flooded roadways.

Rainfall warnings are issued when significant impacts are expected due to rainfall amounts.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

[Typeing3]

10:49 AM PDT Thursday 19 March 2026

Impact Level: High

Forecast Confidence: High

Rain, at times heavy, continues.

Prolonged Atmospheric River Event

What:
80 to 130 mm of rain by Friday

Where:
- Metro Vancouver - northeast including Coquitlam and Maple Ridge

When:
- Periods of heavy rain continues to Friday

Impacts:
-Prolonged heavy rain on snow combined with mountain snow melt could lead to very enhanced responses in river systems and potential for flooding.
-Extensive water pooling on roads and washouts may occur.
-Enhanced risk of landslides due to saturation of landscapes.

Remarks:
An atmospheric river will remain over the South Coast of B.C. through Friday. With freezing levels near 2000 to 2500 metres, snowmelt from higher elevations may increase the impacts associated with this rainfall event.

The heaviest rainfall is expected tonight into Friday morning.

Heavy rain will begin to taper off midday Friday as a cold front sweeps across the Lower Mainland. Freezing levels will also lower to 500 to 1000 metres by Saturday.

Localized flooding is likely. Some roads may become impassable. Travel delays and/or cancellations are likely. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars.

Don't drive through flooded roadways.

Rainfall warnings are issued when significant impacts are expected due to rainfall amounts.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.

[Typeing3]

12:20 AM PDT Friday 20 March 2026

Impact Level: High

Forecast Confidence: High

Rain, at times heavy, continues.

Prolonged Atmospheric River Event

What:
80 to 130 mm of rain by late this afternoon.

Where:
- Metro Vancouver - northeast including Coquitlam and Maple Ridge

When:
- Periods of heavy rain continues today

Impacts:
-Prolonged heavy rain on snow combined with mountain snow melt could lead to very enhanced responses in river systems and potential for flooding.
-Extensive water pooling on roads and washouts may occur.
-Enhanced risk of landslides due to saturation of landscapes.

Remarks:
An atmospheric river will remain over the South Coast of B.C. through this afternoon. With freezing levels near 2000 to 2500 metres, snowmelt from higher elevations may increase the impacts associated with this rainfall event.

The heaviest rainfall is expected tonight into this morning.

Heavy rain will begin to taper off after noon today as a cold front sweeps across the Lower Mainland. Freezing levels will also lower to 500 to 1000 metres by Saturday.

Localized flooding is likely. Some roads may become impassable. Travel delays and/or cancellations are likely. Landslides may occur in vulnerable areas such as steep slopes, deforested areas or recent burn scars.

Don't drive through flooded roadways.

Rainfall warnings are issued when significant impacts are expected due to rainfall amounts.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to BCstorm@ec.gc.ca or post reports on X using #BCStorm.