Snow falls in Edmonton, AB, 12 Sept 2018 (Instagram)
Cold Arctic air has combined with moisture moving over the Rockies to give Alberta a taste of winter in late summer.
Forecasters say northern Alberta including Edmonton could receive at least 8 cm snow with up to 15 cm in Jasper.
Temperatures are hovering near or slightly below freezing with a plunge to -6 C in northern British Columbia.
Environment Canada says more seasonable weather is not expected to return until early next week.
July was a warm month not only in Greater Moncton and New Brunswick but also throughout most of Canada – except for the Far North.
Montreal shattered its monthly record with a mean temperature of 24.1 C – three degrees above normal – and sadly dozens died from not having air conditioning.
Halifax and Toronto were both almost two degrees above normal while Vancouver and Calgary were each more than one degree higher than average.
Even normally cool St. John’s, Newfoundland was 1.6 degrees warmer in July with 15 days reaching daytime highs of 25 C or more.
Only in the Arctic were temperatures lower with Iqaluit, Nunavut nearly one degree below average and Resolute was off by 2.5 degrees – its coldest July since 1964.
Lingering snowbanks in NE Moncton, 09 April 2018 (Dearing)
Since the start of astronomical spring, the highest temperature in Greater Moncton has been 9.1 C and overnight lows have dropped to a near record low of -8.8 C.
So many are asking when is it ever going to warm up in New Brunswick?
The Maritimes has recently found itself on the north side of the prevailing jet stream which has allowed cold, Arctic air to sink south.
Environment Canada says the temperature should finally climb to at least 10 C by Friday.
Keep in mind, the first 20 C reading of the season was 12 April in 2017 while it was 21 April in 2016.
Winter just won’t let go in Western Canada with Environment Canada noting the duration and intensity of the current cold snap hasn’t been felt since April 1970.
The polar vortex is to blame as the pool of Arctic air sinks south into the Prairies.
Daytime highs in southern Alberta are only climbing to -7 C with overnight lows in the -20’s C in Saskatchewan and -30’s C in Manitoba.
Forecasters say the bitter cold will hang around until the weekend.
Icy conditions in a parking lot of NE Moncton, 11 Jan 2018 (Dearing)
Environment Canada issued a flash freeze warning for much of New Brunswick, Nova Scotia and Prince Edward Island early today.
A low pressure system brought snow, later rain and then snow again after the temperature plummeted as Arctic air pushed back into the region.
The daytime high in Greater Moncton was 3.0 C at 11am and pooling water began freezing when the thermometer dropped below freezing by 3pm.
By early Saturday, forecasters say the low could drop to -20 C but temperatures will moderate on Sunday before falling again on Monday.
The Petitcodiac River in Moncton looking toward Dieppe, 28 January 2018 (Dearing)
The first month of 2018 proved to be quite a roller coaster ride in Southeast New Brunswick.
Bitter cold to begin January was briefly erased by a fast-moving ‘bomb cyclone’ until another Arctic blast sunk the low to -22.3 C with a bitter wind chill of -36.
A record thaw saw the thermometer climb to 16.7 C in Greater Moncton – the highest ever in January – and a new all-time provincial high of 17.3 C in Sussex.
Precipitation was above average overall with near normal snowfall – 25 cm was the heaviest snow event on 30-31 – and about twice as much rainfall.
JANUARY 2018 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH -2.0 C
Average LOW -12.6 C
AVERAGE -7.4 C (1.5 degrees ABOVE normal)
Extreme HIGH 16.7 C (13 Jan, new all-time monthly high)
Extreme LOW -22.3 C (07 Jan)
RAINFALL 53.3 mm (almost 50 percent ABOVE normal)
SNOWFALL 77.2 cm (NEAR normal)
(Data courtesy Environment Canada)
Snow is piled high in Boston, MA, USA, 05 Jan 2018 (AP)
Much of New Brunswick was under another extreme cold warning this weekend with a near record low of -22.3 C in Greater Moncton today (record is -23.3 C from 1945) and a bone-chilling wind chill near -36.
Environment Canada is calling for temperatures to moderate this week with a return to near normal values and even above freezing temperatures by Thursday.
The Northeast United States has also been under a cold snap and the thermometer bottomed out Sunday with record lows in a number of cities including Burlington, Vermont at -29 C and Portland, Maine at -24 C.
Boston, Massachusetts tied its record low of -19 C just days after digging out from 34 cm of snow during the ‘bomb cyclone’ and being inundated with icy floodwaters from the highest tides in a century.
Powerful storm surge causes flooding along the waterfront in Halifax, NS, 05 Jan 2018 (Twitter)
The ‘bomb cyclone’ or ‘snow hurricane’ – featuring a dramatic drop in atmospheric pressure when warm and cold air collided – has left the Maritimes and spared Southeast New Brunswick from the worst of its fury.
While strong winds were a factor throughout the region, Greater Moncton received less snow compared to further north and west.
To the south and east, more rain fell along with hurricane-force winds (up to 200 km/h gusts in western Cape Breton) which created powerful storm surges causing flooding along the coast.
Here are some totals from Environment Canada and local estimates:
- Greater Moncton Airport 14 cm snow, 10 mm rain, 91 km/h wind gust
- Bathurst 58 cm snow, 80 km/h wind gust
- Fredericton 30 cm snow, 78 km/h wind gust
- Saint John 5 cm snow, 20 mm rain, 87 km/h wind gust
- Halifax Stanfield Airport 40 mm rain, trace snow, 122 km/h wind gust
The storm may have departed but Arctic air has filtered back into the Maritimes which will mean a bitterly cold weekend.
Several weather outlets are forecasting a major winter storm will hit the Maritimes bringing heavy snow and strong winds to New Brunswick just days into 2018.
Blizzard conditions are possible along with large waves and high water levels along the coast.
Nova Scotia may get more rain along the Atlantic coast while a rain/snow mix is likely inland.
Until the storm arrives, Arctic air remains firmly in place with several cities in Ontario setting new record lows on New Year’s Day including -22.6 C at Toronto Pearson Airport and -28.6 C at Ottawa Macdonald-Cartier Airport.
Heavy snow falling in northeast Moncton, 09 Dec 2017 (Dearing)
December in Southeast New Brunswick started out on a normal note with above freezing daytime highs and chilly but not frigid overnight lows.
But an early Arctic blast settled in over the Maritimes by mid-month and Greater Moncton had five days below -10 C with four nights plunging to -20 C or lower.
After near normal precipitation last month, both rainfall and snowfall were below normal for December.
Two major snow events were recorded on 9-10 Dec (16 cm) and 25 Dec (20 cm) with a significant rainfall on 23 Dec (10 mm).
DECEMBER 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH -2.5 C
Average LOW -10.7 C
AVERAGE -6.6 C (1.8 degrees BELOW normal)
Extreme HIGH 11.1 C (06 Dec)
Extreme LOW -21.8 C (31 Dec)
RAINFALL 39.1 mm (almost 30 percent BELOW normal)
SNOWFALL 51.4 cm (almost 20 percent BELOW normal)
(Data courtesy Environment Canada)