Alerts: Warnings

Weather reports, analysis etc. pertaining to Southern BC.
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Typeing3
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Re: Alerts: Warnings

Post by Typeing3 »

4:43 AM PST Thursday 22 December 2022
Arctic outflow warning in effect for:

Metro Vancouver - central including the City of Vancouver Burnaby and New Westminster
Metro Vancouver - North Shore including West Vancouver and North Vancouver
Metro Vancouver - northeast including Coquitlam and Maple Ridge
Metro Vancouver - southeast including Surrey and Langley
Metro Vancouver - southwest including Richmond and Delta
Strong outflow winds and cold wind chill values will continue.

Locations: Metro Vancouver and Fraser Valley.

Threat: Bitterly cold temperatures and strong winds.

Wind Chill Values: Minus 25 to minus 20 in Metro Vancouver, Fraser Valley West including Abbotsford and Fraser Valley Central including Chilliwack. Minus 30 to minus 25 in Fraser Valley East including Hope.

Time span: Today and tonight.

Remarks: An arctic front has brought in a cold airmass to the south coast. Strong outflow winds are bringing temperatures 5 to 10 degrees below seasonal normals resulting in wind chill values approaching minus 20 to minus 30 over the Lower Mainland.

Over Metro Vancouver, conditions are expected to improve this afternoon as temperatures rise. However, over the Fraser valley, the extreme cold conditions will continue through tonight.

Ensure that shelter is provided for pets and outdoor animals. Be prepared for unusually cold temperatures and strong winds.

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.


3:49 PM PST Thursday 22 December 2022
Winter storm warning in effect for:

Metro Vancouver - central including the City of Vancouver Burnaby and New Westminster
Metro Vancouver - North Shore including West Vancouver and North Vancouver
Metro Vancouver - northeast including Coquitlam and Maple Ridge
Metro Vancouver - southeast including Surrey and Langley
Metro Vancouver - southwest including Richmond and Delta
Hazardous winter conditions are expected.

Travel conditions will be challenging due to heavy snow, ice pellets, freezing rain, and heavy rain on snow or ice.

Locations: South Coast.

Time span: This evening to Saturday (Christmas Eve).

Hazards: Heavy snow followed by freezing rain and rain, localized strong winds, and localized windchill due to Arctic Outflow to minus 25, localized flooding in heavy rain.

Remarks: A Pacific frontal system combined with the cold Arctic airmass over B.C. will bring another round of snow to the South Coast starting this evening.

As freezing levels rise, heavy snow will become mixed with ice pellets and then change to rain late Friday over most of Vancouver Island, and Friday night to Saturday over the mainland. Snowfall amounts of 10 to 20 cm are expected. Local blowing snow is possible in strong easterly winds resulting in near zero visibilities.

Furthermore, freezing rain is expected during the transition from snow to rain, which could cause significant impact on road conditions. For inland sections of Vancouver Island, periods of freezing rain could continue into Saturday afternoon.

As the system progresses and warming becomes dominant, heavy rain is expected. Localized flooding due to snow-blocked drains and melting snow is likely.

In the Whistler area and on the Sea to Sky highway, precipitation will persist as snow, and become heavy at times on Saturday. Travellers should be prepared for significant travel delays on Saturday and Saturday night.

On the west side of Vancouver Island, on Saturday, rainfall amounts are likely to exceed 100 mm rainfall warning criteria.

Visibility will be suddenly reduced to near zero at times in heavy snow and blowing snow. Localized flooding in low-lying areas is possible. Take extra care when walking or driving in affected areas. Ice build-up may cause tree branches to break.

Winter storm warnings are issued when multiple types of severe winter weather are expected to occur together.

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.
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Re: Alerts: Warnings

Post by AbbyJr »

Warnings
9:28 PM PST Thursday 22 December 2022
Winter storm warning in effect for:

Fraser Valley - central including Chilliwack
Fraser Valley - east including Hope
Fraser Valley - west including Abbotsford
Hazardous winter conditions are expected.

Travel conditions will be challenging due to heavy snow, ice pellets, freezing rain, and rain on snow or ice, followed by heavy rain.

Locations: Fraser Valley.

Time span: After midnight tonight through Saturday morning.

Threats: Heavy snow followed by freezing rain and heavy rain; Strong winds and reduced visibility in blowing snow; Arctic outflow and windchill near minus 20; Freezing rain with significant ice build-up and slippery surfaces.

Remarks: A Pacific frontal system combined with the cold Arctic airmass over B.C. will bring another round of heavy snow overnight and Friday.

As freezing levels rise, heavy snow will become mixed with ice pellets Friday afternoon and then change over to freezing rain Friday evening. The freezing rain will finally change over to rain Saturday afternoon. The transition to freezing rain then to rain will occur at least six hours later in Hope.

Total snowfall accumulation of 15 to 25 cm and ice accretion of 15 to 25 mm are expected. Local blowing snow is possible through Friday morning in strong easterly winds resulting in near zero visibilities.

Consider postponing non-essential travel until conditions improve. Surfaces such as highways, roads, walkways and parking lots may become icy and slippery. Localized flooding in low-lying areas is possible. Ice build-up may cause tree branches to break.

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.
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Re: Alerts: Warnings

Post by Typeing3 »

1:20 PM PST Friday 23 December 2022
Rainfall warning in effect for:

Metro Vancouver - central including the City of Vancouver Burnaby and New Westminster
Metro Vancouver - North Shore including West Vancouver and North Vancouver
Metro Vancouver - northeast including Coquitlam and Maple Ridge
Metro Vancouver - southeast including Surrey and Langley
Metro Vancouver - southwest including Richmond and Delta
Rainfall, combined with melting snow, is expected. The frozen ground has a reduced ability to absorb this rainfall.

Time span: Tomorrow (Christmas Eve).

Location: Metro Vancouver.

Rainfall accumulations: 25 to 50 mm, except 60 to 90 mm for North Vancouver and northern sections of Coquitlam and Maple Ridge.

Threats: Localized flooding due to water pooling and ice-clogged drainage. Slippery surfaces before the ice and snow melt completely. Ice falling from infrastructure may give rise to injuries and damages.

Remarks: A Pacific system will bring heavy rain and a warmer airmass to the B.C. south coast tomorrow. Precipitation phase will switch from freezing rain and ice pellets to rain sometime between late afternoon and tonight. Periods of rain will intensify tomorrow morning. Heavy rain will taper off to a few showers tomorrow late afternoon or early evening.

Localized flooding in low-lying areas is possible. Be prepared for possible winter conditions at higher elevations.

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.
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Re: Alerts: Warnings

Post by Typeing3 »

4:09 PM PST Wednesday 10 January 2024
The first Arctic intrusion of the year is on the horizon.

When: Thursday night to Saturday afternoon.

Where: Metro Vancouver, Greater Victoria, Fraser Valley and Southern Gulf Islands

Hazard: Risk of frostbite and hypothermia.

Wind chill value: minus 20.

Remarks: Arctic air combined with strong outflow winds gusting to 60 km/h will generate wind chill values of minus 20 beginning on Thursday night.

Wind chill values may moderate on Saturday afternoon but uncertainty remains on the timing of the warm-up.

Frostbite and hypothermia can occur within minutes if adequate precautions are not taken when outdoors. Any skin exposure will result in frostbite.

If outside, dress warmly in layers and stay dry. Cover as much exposed skin as possible to avoid frostbite.

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.
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Re: Alerts: Warnings

Post by AbbyJr »

10:54 AM PST Tuesday 16 January 2024

Hazardous winter conditions are expected.

Heavy snow and blowing snow.

When: Tonight through Wednesday evening.

Where: Fraser Valley.

Hazards: Significant snowfall accumulations of 15 to 25 cm, blowing snow in strong northeast or east winds.

Remarks: A Pacific low pressure system is expected to bring a snow storm to the south coast from tonight to Wednesday. Poor visibility due to blowing snow is also a travel hazard in addition to heavy snowfall.

In addition, there is a risk of freezing rain tonight in southern sections near the United States border.

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

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.
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2022/23 season snowfall: 76.8cm

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Re: Alerts: Warnings

Post by Typeing3 »

10:58 AM PST Tuesday 16 January 2024
A snow storm is expected to arrive tonight.

When: Tonight to Wednesday afternoon or early evening.

Where: Metro Vancouver, Greater Victoria, Howe Sound, Whistler, Sunshine Coast, Southern Gulf Islands, East Vancouver Island, Inland Vancouver Island, Sea to Sky - Squamish to Whistler, Malahat Highway - Goldstream to Mill Bay.

Snowfall accumulations: Approximately 10 to 20 cm on the mainland side and southern Sunshine Coast and 10 cm for the Vancouver Island side and northern Sunshine Coast.

Remarks: A Pacific low pressure system is expected to bring widespread snow to the south coast tonight into Wednesday. Snow may become mixed with rain over Greater Victoria on Wednesday afternoon before easing late in the afternoon or early evening.

In addition, there is a risk of freezing rain tonight in southern sections near the United States border.

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.

Be prepared to adjust your driving with changing road 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.
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Re: Alerts: Warnings

Post by AbbyJr »

10:51 AM PST Wednesday 17 January 2024

Hazardous winter conditions are expected.

Heavy snow and blowing snow.

When: Now through early this evening.

Where: Fraser Valley.

Hazards: Significant snowfall accumulations of 20 to 30 cm, blowing snow in strong northeast or east winds.

Remarks: A Pacific low pressure system is currently bringing snow to the south coast. Current observations so far indicate Abbotsford has received 24 cm, Chilliwack 10 cm, and Hope 13 cm. Poor visibility due to blowing snow is also a travel hazard in addition to heavy snowfall.

In addition, there is a risk of freezing rain tonight in southern sections near the United States border.

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

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.
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2022/23 season snowfall: 76.8cm

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Re: Alerts: Warnings

Post by Typeing3 »

10:48 AM PST Wednesday 17 January 2024
When: Now through this afternoon.

Where: Metro Vancouver, Greater Victoria, Howe Sound, Whistler, Sunshine Coast, Southern Gulf Islands, East Vancouver Island, Inland Vancouver Island, Sea to Sky - Squamish to Whistler, Malahat Highway - Goldstream to Mill Bay.

Total Snowfall accumulations: 10 to 20 cm over Vancouver Island, 20 to 30 cm for the mainland side.

Remarks: A Pacific low pressure system is currently bringing widespread snow to the south coast. Current observations indicate 15 to 20 cm of snow has fallen over Vancouver Island, and 15 to 25 cm has fallen over the mainland side.

Snow may become mixed with rain over Greater Victoria this afternoon.

The heavy snow will taper off later this afternoon.

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.

Be prepared to adjust your driving with changing road 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.
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Re: Alerts: Warnings

Post by Typeing3 »

7:50 PM PST Thursday 18 January 2024
Freezing rain is expected or occurring.

When: Tonight.

Where: Metro Vancouver Northeast and Southeast - including Coquitlam, Maple Ridge, Surrey and Langley.

Remarks: A Pacific frontal system combined with lingering cold air under outflow conditions will produce an extended period of freezing rain. Snow or ice pellets will transition to freezing rain this evening and change to rain overnight.

Surfaces such as highways, roads, walkways and parking lots may become icy and slippery.

Take extra care when walking or driving in affected areas. Be prepared to adjust your driving with changing road 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.
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Re: Alerts: Warnings

Post by Mattman »

Good to see some meaningful snow in the Okanagan. But such snowfalls occur every winter on valley floors. EC is sure trigger-happy with warning, statements, and alerts.
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Re: Alerts: Warnings

Post by Typeing3 »

5:09 AM PST Tuesday 27 February 2024
Snowfall accumulation of 5 to 8 cm expected.

Where: Northern sections of Metro Vancouver - including West Vancouver, North Vancouver, Coquitlam and Maple Ridge.

When: Late this afternoon to near midnight, potentially impacting the evening commute.

Remarks:
A weather system will bring a wintry mix of precipitation to the Lower Mainland late this afternoon through Wednesday.

Snow levels will be hovering near sea level, and precipitation will start as rain mixed with snow late this afternoon. Snowfall accumulations are expected to vary greatly with elevation and proximity to the water. Snow will initially melt as the ground is still warm but the likelihood of accumulation increases as the evening progresses.

With a warming southwesterly flow aloft, snow levels will rise overnight resulting in mixed precipitation changing to heavy rain overnight. Total snowfall accumulation of 5 to 8 cm can be expected before the phase change.

There may be a significant impact on rush hour traffic in urban areas.

Be prepared to adjust your driving with changing road conditions. If visibility is reduced while driving, turn on your lights and maintain a safe following distance.

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.
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Re: Alerts: Warnings

Post by VanCitySouth »

8:58 AM PST Tuesday 27 February 2024
Local snowfall accumulation near 5 cm expected.

Where: Metro Vancouver - central including the City of Vancouver, Burnaby and New Westminster, Southeast including Surrey and Langley, and Southwest including Richmond and Delta

When: Late this afternoon to before midnight, potentially impacting the evening commute.

Remarks:
A weather system brings a wintry mix of precipitation to the Lower Mainland late this afternoon through Wednesday.

Snow levels will be hovering near sea level, and precipitation will start as rain mixed with snow late this afternoon. Snowfall accumulations are expected to vary greatly with elevation and proximity to the water.

With a warming southwesterly flow aloft, snow levels will rise overnight resulting in mixed precipitation changing to moderate to rain near midnight. Local snowfall accumulation near 5 cm can be expected before the phase change.

Moderate to heavy rain will persist through Wednesday and ease to a few showers Wednesday evening with the passage of the system. Total rainfall amounts will be from 20 to 40 mm.

There may be a significant impact on rush hour traffic in urban areas.

Be prepared to adjust your driving with changing road 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.
2023-24 season stats:
Climo :cancel: 81 to 44 :14clown: GFS

Season total: 39.0 cm + 3 traces
Peak depth: 28.0 cm (Jan 17)
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