Category: British Columbia

Alberta

Long-Duration Snowstorm Brings Early Season Chill Across British Columbia…

A strengthening Colorado Low will bring a long-duration, widespread snowstorm to portions of British Columbia, Alberta, and Saskatchewan before lingering into Manitoba and Northern Ontario.

A weak low is expected to bring a snowstorm to the mountains of British Columbia and Alberta on Friday lasting through to Sunday. Strengthening into the weekend, on Saturday, a strong low is expected to form near the Wyoming/Colorado border before moving east towards Northwestern Ontario before phasing out and reorganizing into a low which will bring widespread rain to portions of Northeastern and Southern Ontario.

WESTERN PRAIRIES & SOUTHERN BRITISH COLUMBIA SNOWFALL TOTALS

Accumulations from the snowstorm will vary greatly throughout Southern Alberta/Saskatchewan with the heaviest accumulations throughout the mountains. Current guidance suggests snowfall totals will be highest between 30 and 60cm, locally higher towards 70cm+, in the extreme southwestern portion of Alberta throughout Waterton Lakes National Park towards Pincher Creek, where the extent of red is shaded in the forecast map. Isolated totals near 100cm may be possible. Along the United States border extending into the mountains, highlighted in pink, snowfall totals between 15 and 30cm are likely with pockets of snow towards 40cm possible throughout the mountains. The highest snowfall totals are due to the position of the low creating an ‘up-sloping’ event where the snow is driven up and into the mountains and foothills allowing for significant accumulations. Snowfall ratios in this region will likely peak around 10:1 (10 inches of snow for 1 inch of water).

Down the mountains into the foothills and into the Central-Northern Rocky Mountains, Purcell Mountains, and Northern Selkirks Mountains, snowfall totals will be limited to 10-20cm with local totals towards 20-30cm. This includes Banff and Cranbrook, as well as, this region is highlighted in purple on the forecast map. In Extreme Southern Alberta, outside of the foothills will likely see between 10-20cm of snow. This includes the City of Lethbridge extending towards the southeast, also seen in purple on the forecast map. The snowfall totals may significantly drop off outside of the mountains and foothill regions as temperatures on Saturday through to Monday across the lower Prairie regions will be within 2 degrees of 0, meaning, snow may change over to rain at the lower elevations. This would significantly limit accumulations. The temperature change would be most prevalent in Extreme Southeastern Alberta into Southern Saskatchewan. Snowfall totals in this region are expected to be between 5-15cm are likely, which can be seen in purple on the forecast map, and circled. If temperatures trend cooler for this region, 10-20cm wouldn’t be out of the question for Southern Alberta and Southwestern Saskatchewan, extending as far in to include Shaunavon. Snowfall ratios will peak around the 3:1 and 5:1 range.

A general 5-15cm, locally up to 25cm, can be extended throughout the Rocky Mountains from the Lake Lousie region northwest into British Columbia extending towards Fort Nelson, as well as the Southern Selkirks Mountains and portions of the Monashees and Cascade Mountains. This would include Jasper and Grande Cache. This is highlighted in dark blue on the map. Across Southern Alberta and Southwestern Saskatchewan, a widespread 5-10cm, locally 15-20cm can be expected, also highlighted in dark blue. This includes Calgary, Medicine Hat, Swift Current, Rockglen, and Penticton. Elsewhere in light blue, flurries are likely. Snowfall totals around 5cm with local totals to 10-15cm are likely around Kelowna and Vernon. Snowfall totals will range under 5cm with local pockets sticking up to 10cm for portions of Saskatchewan and Central Alberta. Generally, the snow will melt-on-contact for a majority of the event for these highlighted regions, including Red Deer, Regina, and Saskatoon.

Environment Canada has issued widespread special weather statements across Southern, Western and Central Alberta, as well as, portions of British Columbia. Winter storm watches have been issued ahead of the snowstorm for Pincher Creek, Waterton Lakes National Park, Canmore, Okotoks, Cardston, and Fort Macleod regions.

Weather alerts can be monitored on Environment Canada’s website: https://weather.gc.ca/warnings/index_e.html

Projected snowfall totals between Friday, September 27th to Monday, September 30th

MANITOBA & ONTARIO SNOWFALL TOTALS

As the snowstorm producing low-pressure system crosses east, bringing the precipitation with it, light to moderate showers are likely across Southern Manitoba, and most of Northern Ontario. Alongside these showers, a band of flurries to light snow will cross portions of Central/Northern Manitoba into Far Northern Ontario. Snowfall totals less than or near 5cm are likely due to the snow mainly being melt-on-contact. A few pockets across Southwestern Manitoba and into Far Northern Ontario may see local totals towards 10cm. The highest confidence for locally higher totals is circled in red.

Projected snowfall totals between Monday, September 30th to Wednesday, October 2nd

BLOWING SNOW & STRONG WINDS

As the snow falls across the Southern Prairies, increasing wind speeds will bring the threat for hazardous traveling conditions in fast accumulating snow and falling snow. Current guidance suggests wind speeds will range from 30-50km/h across Southern Alberta and Southern Saskatchewan later in the day on Saturday extending through to Sunday morning. During the afternoon and evening on Sunday, winds will likely increase to 40-70km/h before 40-60km/h wind gusts settle in across Saskatchewan, Manitoba, and Ontario as the system weakens and phases out beginning mid-day Monday.

Blizzard conditions are possible.

Blowing snow and falling snow may make travel hazardous on Highway 1, 2, 3, and 4 across Southern Alberta and on Highway 1, 13, 18, 21, and 37 in Southern Saskatchewan.

British Columbia

How Two Storms Dancing in the Pacific Will Impact…

What is a dancing storm? Good question. The Fujiwara effect “dancing storms” refers to the interaction between two cyclonic vortices. When two low-pressure systems near each other, they begin to orbit one another around a mid-point separating the two systems. The effect gets its nickname from the interaction of two systems appearing to “dance” around one another. Read more here.

A pair of systems interacting in the Gulf of Alaska through the weekend. By Saturday afternoon, the systems merge into one stronger storm and stall in the Gulf. Heralding waves of precipitation & unsettled conditions along the coast.

WINDY DAY SATURDAY ALONG THE HAIDA GWAII ARCHIPELAGO

Southeasterly winds will pick-up along the channel separating the islands and the Mainland, Saturday. The most powerful wind & waves will remain off-shore. Still, gusty winds & rainfall along Vancouver Island and the Archipelago will lead to a lousy day. Wind gusts between 60-90km/h are likely.

WET ALONG THE COAST WITH SNOW IN THE MOUNTAINS

An unsettled couple of days across the Lower Mainland & Vancouver Island. 25-35mm of rainfall is expected across Vancouver & Victoria through Friday & Saturday. This will be a beneficial rainfall across the region, where its been an unusually-dry start to spring. Unfortunately, the rainfall isn’t expected to penetrate far enough into the interior to bring any relief to the dry conditions.

Projected Rainfall through the weekend.

A more prolonged and significant rainfall is expected along Western sections of Vancouver Island. 40-70mm of rainfall is expected by the end of the day Saturday. The mountain peaks along the coast will see heavy snow – mixing or light accumulation is possible along sections of Highway 19.

Heavy snow expected above 1500m.
Alberta

Major Snowstorm Slices Through British Columbia & the Prairies

A Major Pattern reversal is underway across Western Canada. Cold air will descend from Northern Canada beginning Friday, coinciding with an extended period of heavy snowfall.

Our forecasting team will be closely monitoring the progression a major winter storm beginning Thursday evening. The Winter Storm isn’t expected to bring heavy snowfall rates, but rather an extended period of light-moderate snow over the next 48 hours.

The heaviest snowfall totals are expected through the Rockies; across British Columbia and Alberta. Where in excess of 50cm of snow is expected to fall. Even major cities, such as Edmonton won’t escape the wintry weather. With 30 or more centimeters projected to fall, over the next couple days.

Projected Snowfall Totals through Saturday PM
**Click map to make it zoomable.
Alberta

Canada Winter 2018-2019 Forecast: Frigid Prairies and Significant Lake-Effect…

Canada-Wide 2018-2019 Preliminary Forecast.
Finalized Outlook by Christmas!

Frigid Air and Heavy Squalls Loom

The winter across Canada for many this season is expected to be cold, particularly for Saskatchewan, Manitoba, Ontario, and Quebec.

Through careful analysis of meteorological data, we have compiled a preliminary forecast for the winter across Canada for this winter. We will issue an updated version, should the situation warrant, in December.

For many places, we expect an early start to winter. Some places in Manitoba have already received accumulating snow. For Southern Ontario, we expect accumulating snow perhaps as early as late October.

Key Highlights
– Frigid & Snowy Winter for Saskatchewan and Manitoba
– Cold & Stormy for Ontario and Quebec
– Potentially Historic Squalls for Great Lakes (NW and W Flow)
– Several Winter Storms for Maritimes and NL but Not All Snow

British Columbia
For this winter BC is expected to receive a relatively typical winter season. Normal precipitation amounts with normal temperatures will be present in the region. While a few colder outbreaks are certainly likely with some snow getting into the mainland, we expect nothing out of the ordinary.

Prairies
From Alberta to Saskatchewan to Manitoba, we expect a frigid winter overall. While Alberta is expected to receive moderating temperatures throughout the winter from Pacific air flows, Saskatchewan and Manitoba are expected to be exceptionally cold, and at times, record-breaking with several rounds of ‘deep-freezes’. Precipitation is expected to be slightly above normal for Alberta, and above normal for Saskatchewan and Manitoba.

Ontario & Quebec
Ontario is expected to be overall, cold this winter. Northwestern and Northern Ontario are expected to parallel the frigid air likewise to the Prairies. With the set-up of the storm track this winter, we expect more rounds of Colorado and Texas lows to infiltrate the Great Lakes and Southern Quebec for the first time in what has seemed to be a number of years.
The cold air from Manitoba and Saskatchewan will provide flourishing variables to allow a well-above and significantly active lake-effect season in an NW to W flow. Preliminary indications represent a repeat of December 2010 across the region.

Quebec is expected to receive above-normal snowfall this year as several storms track through the interior NE of the USA this year. Temperatures will become vastly more frigid through Northern regions of the province.


Maritimes and Newfoundland & Labrador
While the Maritimes and NL are expected to be active this year, it is expected at times, slightly milder air will target the regions, therefore, not all systems this year will be snow-makers. The regions will certainly be stormy this year, but several storms may end up more of a ‘wintry-mix’, rather than snowstorms. Temperatures will be slightly more moderated at times, although at times, cold bouts are certainly likely.

Territories
The Yukon is expected to receive slight benefits from Pacific air and a slight ridge at times over Western Canada/Western USA, providing relief at times relative to the typical winter in the region. Conversely, NWT and Nunavut are expected to receive normal precipitation


– TCW

British Columbia

British Columbia Prepares for the Wildfire Season

As the sun sets a helicopter prepares to dump water on a blaze near Williams Lake, BC Wednesday, July 12, 2017. Jason Payne – Vancouver Sun

After a devastating forest fire season in 2017, tougher penalties in an effort to reduce wildfire risk, have been made law this year – ahead of the dry season. Read more about new failure to comply measures put into law.

It is common for summer temperatures to peak between 30-35 degrees Celsius during the summer months in the Southern Interior. Coupled with long stretches of dry, sunny weather, and low relative humidity. 

Fire Rating July 17th, 2018. Natural Resources Canada.

Hot and dry weather will be the story through the beginning of this week with the Southern Interior reaching the low 30s. In Kamloops, an air quality statement, together with a heat warning have been issued. A respite from the heat is expected mid-week with the arrival of upper-level trough. 

As early as Thursday & Friday, cooler temperatures will spread across the Interior. A chance of rain and cloudier conditions will be welcomed in some communities – but others who see lightning could see new fires.

Current forest fires burning in British Columbia. 

On Vancouver Island, sunny and pleasant conditions are expected to persistent for many days. Coupled with low-humidity, the Victoria vicinity will see rising fire ratings. 

Unfortunately, high-pressure will return to British Columbia next week. Temperatures will once again soar into the high 20s or 30s. The dry season may persist well into August this year.

Alberta

Updated Summer Forecast: Heat Expected to Dominate Ontario, Manitoba…


2018 Canada Summer Outlook and Higlights Depicted Below —- July and August

Key Highlights

– Heat Builds for Northern, Southwestern, Southern, Central and Eastern Ontario and Southern Quebec Beginning June 29th.

– Many Canadians are Expected to Receive a Warm or Hot July 1st (Canada Day!).

– Unusually Dry for Ontario and Quebec.

– Intermittent Rounds of Isolated Severe Thunderstorms for MB, ON, and QC.

– Decently Warm for SK and AB; Some Periods of Very Warm to Hot Weather.

– Wet BC Coast; Warmer and Drier Interior.

– Newfoundland and Labrador Likely to be Disappointed this Summer Due to Cooler and Wetter Conditions.

– ‘Bone-Dry’ for the Yukon, NWT, and Nunavut.

*Some Potential for Record-Breaking Heat (the Upper 30s) for Parts of ON and Parts of QC for the Last Week of July or 1st Week of August.

Brief Discussion

We at TCW are expecting overall, the country to be slightly above seasonal for the majority of the two months. We expect consistent heat to surge into Manitoba, Ontario and Quebec. While the heat will be slightly less humid as is typical, the heat will be quite consistent for the months of July and August.

It is expected that Manitoba, Ontario and Quebec will be quite dry for these two months, but, become inundated with intermittent days of isolated severe thunderstorms as a result of day-time heating.

The Maritimes are expected to warm-up as the summer progresses, while Newfoundland and Labrador is expected to remain cool and somewhat wet.

Saskatchewan and Alberta will have a few periods of hot weather (especially Saskatchewan), however temperatures will overall, be more warm to very-warm than hot.

British Columbia will remain seasonal and wet near the immediate coast, with the interior being drier and a few degrees above seasonal.

The Yukon, NWT and Nunavut will be slightly above seasonal and very dry.

– TCW

Alberta

Canada Spring and Summer Highlights: Summer to Arrive; Will…



Canada’s Summer Highlights; Spring Temperatures and Spring Precipitation Forecast: From TransCanada Weather

Through careful analysis of ocean temperatures, atmospheric patterns and continental, national and global temperatures, we have formulated and depicted our predictions across the country for Spring and Summer 2018.

Spring

Atlantic Canada
A relatively active storm track across the entire region as listed, will provide ample opportunities for a mixed bag of precipitation for eastern sections, with snow for western sections through late March into early April.

Parts of New Brunswick, PEI, Western Nova Scotia, Western Newfoundland and most of Labrador can expect opportunities for snow.

Temperatures will be below seasonal, particularly through early April and slowly begin to moderate from late April into May for all of Atlantic Canada.

Ontario and Quebec
A relatively active storm track will also be present particularly from late March into early April. Opportunities for snow exist, however, temperatures will likely be slightly too mild for significant snow accumulations. However, below seasonal temperatures and slightly above precipitation are expected until mid April.

Temperatures will begin to moderate particularly later in April and seasonal weather will become more prevalent and consistent in May.

Prairies
The Prairies will continue to remain fairly seasonal this spring with dry conditions at times, particularly later in spring; average precipitation early in the spring.

British Columbia
Much of British Columbia will experience warm surges of Pacific air with an inundation at times, of moisture from Pacific low pressure systems.

Northern Territories
The NWT are expected to be seasonal and dry for much of April and May.

Summer

Atlantic Canada
An active storm track at times will provide for soaking rains and isolated severe thunderstorms at times, throughout the summer. This summer will be fairly consistently warm across the entire region with periods of hot and humid weather.

Summer will arrive, but some time will be required.

It is expected that warmth will begin to build into late June through July and August.

Ontario and Quebec
An active storm track will provide surges of heat across the region, particularly in late June through August. Severe weather will make visits at times this summer, however, it is expected the early portion of summer will remain somewhat dry, and slightly cool, with active and a widespread severe risk building from late July into August.

There is reasonable certainty that June will provide some bouts of cooler and drier weather relative to the norm.

Prairies
The Prairies will receive a typical summer; warm with periods of stiffing temperatures, severe thunderstorms and large hail and isolated tornadic risks, particularly across Alberta and Saskatchewan.

British Columbia
British Columbia is expected to be slightly cooler this summer, although not exceptionally cool. Surges of hot and dry weather that typically show through July-September may be somewhat limited this summer, although not non-existent.

Its not all bad news for the BC coast as moisture is expected to be to the north and south.

Northern Territories
The NWT are expected to be seasonal and dry for much of June, July and August.

https://twitter.com/TransCANWeather

– TCW

Alberta

Beautiful Weather Arrives in Alberta and British Columbia

Temperatures soar above freezing today in the Rockies and Foothills – including Banff, Jasper and Calgary. Double-digit highs for Lower Mainland and Southern Interior British Columbia today and Tuesday. Dense fog this morning in Southeast Alberta degrades to abundant sunshine.

A broad area of high pressure combined with plentiful sunshine, and light changeable winds, will send temperatures soaring above freezing today and Tuesday across Southern British Columbia and Southern Alberta.

Overnight-lows in Calgary, Red Deer, Airdrie, Lethbridge, Medicine Hat – and much of Southern Alberta were close to or below negative 10c. The same locales today will be in the upper single digits. The warm above seasonal weather will persist into Tuesday. Temperatures will (once again) fall well below freezing tonight, quickly rising into the upper single digits Tuesday Afternoon. Pleasant temperatures are expected to persist for much of the week.

Much of the same conditions is expected for Southern British Columbia. Locales in the Lower Mainland – including Abbotsford can expect highs in the teens today.

Forecast daytime-high temperatures Monday, March 12, 2018. Zoom-in on mobile to navigate to your location. Courtesy of darksky.net

Forecast daytime-high temperatures Tuesday, March 13, 2018. Zoom-in on mobile to navigate to your location. Courtesy of darksky.net

It will be an excellent day to get outside and enjoy some needed sunshine. If you like this story, share the ‘warm weather’ with your friends and family!

For hourly and live storm updates around the clock, follow us on Twitter @TransCANWeather.

– TCW

British Columbia

British Columbia Coastal Snow: Including City of Vancouver



A trough of low pressure is determined to impede coastal regions of British Columbia, including the city of Vancouver and vicinity.

Snow will begin Friday morning and continue through the majority of the day across the aforementioned province. Snow will further linger in the form of flurries through early Saturday morning, bringing in light accumulations to what accumulated as a majority, through the day on Friday.

The city of Vancouver and vicinity will receive accumulating snow and lengthier commutes should be expected.

Regions along the immediate coast will receive the lower-end of the amounts listed in the “legend”, while regions further inland will receive amounts synonymous to the higher-end of the amounts depicted.

Gusty winds across the entire region will be of concern for localized blowing snow.

Be prepared for rapidly accumulating snow and deteriorating conditions across coastal regions and major Metropolitan regions.

 

For hourly and live storm updates around the clock, follow us on Twitter.
https://twitter.com/TransCANWeather


Alberta

Snowfall For Western Canada This Weekend

 

Snowfall this weekend will target the Interior BC and Southwestern Alberta regions, including major locales of Interior British Columbia.

A wide-swath of 15-30cm is probable, with higher elevations exceeding 30cm.

Plan accordingly and be prepared for snow-covered streets, roads and highways, particularly in Interior BC.

For hourly and live storm updates around the clock, follow us on Twitter.
https://twitter.com/TransCANWeather