Early blast of Arctic air

The jet stream took a big dip south this week allowing Arctic air to envelop the eastern United States and eastern Canada.

Temperatures dropped to freezing all the way to the Gulf of Mexico.

Meteorologists say the early icy blast was more typical of January than mid-November.

New record lows were set in Ontario where CFB Borden fell to -24°C and Toronto Pearson Airport dropped to -14°C.

The coldest low of the season was set in Greater Moncton today at -10°C and just a couple degrees shy of the record.

The Southeast New Brunswick forecast calls for a roller coaster ride this weekend followed by more seasonable temperatures next week.

Sharp drop in temperature!

Temperature contrast 8pm, 12 Nov 2019 (earth nullschool.net)

Snow began falling in Southeast New Brunswick Monday night and later changed to freezing rain and then rain by Tuesday afternoon.

The temperature climbed to a balmy 14°C in Greater Moncton and 18°C in Greenwood, Nova Scotia.

But as the low pressure system moved out of the Maritimes toward Newfoundland, winds shifted to the northwest causing the thermometer to drop rapidly Tuesday night with a return to snow when it fell to freezing again.

Overnight low records could be challenged in the region by early Thursday as cold Arctic air takes hold.

Scattered frost!

Geranium with light frost damage in NE Moncton, 19 Sept 2019 (Dearing)

It was a cold morning in the Maritimes and frost advisories were posted for all three provinces.

Scattered frost was recorded in many areas including Greater Moncton where the thermometer fell to -0.4°C at the airport which is close to the 2008 record low of -1.2°C.

However, a minimum of -4.4°C was set in the area in 1945.

This was a light frost and much earlier than the average date of 04 October.

New record lows for 19 September:

Grand Manan
New record  -2.1°C
Old record -1.6°C set in 2008
Records in this area have been kept since 1883

Saint John Airport
New record -0.7°C
Old record -0.5°C set in 2009
Records in this area have been kept since 1871

Port Hawkesbury, NS
New record 0.3°C
Old record 2.0°C set in 1994
Records in this area have been kept since 1875

Summerside, PEI
New record 0.6°C
Old record 2.1°C set in 2014
Records in this area have been kept since 1898

(Data courtesy Environment Canada)

Chilly nights!

Last Zero
The last couple of nights have been chilly across New Brunswick with overnight lows in the low single digits.

While Greater Moncton fell to 5.5°C which was a few degrees away from the record, the same minimum in Bouctouche was cold enough to set a new low.

Edmundston dipped to a nippy 1.1°C which tied its record as did Grand Manan when it dropped to 3.8°C.

Over the last six years in Greater Moncton, the chart above shows temperatures have not fallen to the freezing point or lower after early June.

Unbelievable cold in the West!

COLD

Thermometer reading near Edmonton where Celsius meets Fahrenheit, 05 Feb 2019 (Twitter)

An Arctic air mass has plunged much of Western Canada into the deep freeze with the coldest weather in nearly a decade.

Frigid temperatures have broken records in Saskatchewan, Alberta and British Columbia with the wind chill making it feel more like -50 in some areas!

Emergency responders had many calls related to frostbite and hypothermia with seniors and young children being especially vulnerable to the cold.

Auto clubs had almost ten times as many requests from drivers for dead car batteries.

These locations were among new minimums set on 05-06 February 2019:

Key Lake, SK
New record of -47.7
Old record of -44.0 set in 2007
Records started in 1976

Meadow Lake, SK
New record of -43.5
Old record of -41.0 set in 1979
Records started in 1959

Saskatoon, SK
New record of -42.5
Old record of -41.7 set in 1907
Records started in 1900

Grande Prairie, AB
New record of -41.5
Old record of -39.4 set in 1933
Records started in 1922

Edmonton International Airport, AB
New record of -41.2
Old record of -37.2 set in 1975
Records started in 1959

Jasper, AB
New record of -39.4
Old record of -35.7 set in 2014
Records started in 1916

Blue River, BC
New record -35.6
Old record -33.0 set in 1989

Lytton, BC
New record -17.4
Old record -17.2 set in 1949

(Data courtesy Environment Canada)

Bitter cold in Toronto

A bitterly cold day in downtown Toronto, 20 Jan 2019 (Dearing)

Without a doubt, Canada’s largest city can often be cold during the winter.

But during a recent stopover in Toronto, an Arctic air mass pushed into Southern Ontario giving the provincial capital its coldest daytime high ever recorded.

A bitterly cold maximum of -14.2°C was set on 20 January at Pearson Airport.

Two overnight lows also dropped to -22°C this week which although frigid were still a few degrees away from the all-time records.

Until now, Central Canada had practically escaped the winter season apart from a brief blast in late November.

Bitter cold ahead of more snow

Temperatures sunk early Monday across the Maritimes with some New Brunswick locations shattering records by almost five degrees dating back to the 1880’s.

The bitter cold precedes another storm system which could bring up to 25 cm of snow to southern New Brunswick, most of Prince Edward Island and northern Nova Scotia.

While it plunged to -14.7°C in Greater Moncton, the 1936 record still stands at -16.7°C.

Here are some of the new record lows set in the region on 19 November:

  • Bathurst, NB -22.5°C
  • Woodstock, NB -21.4°C
  • Miramichi, NB -20.2°C
  • Kouchibouguac, NB -20.0°C
  • Summerside, PE -15.7°C
  • Charlottetown, PE -15.2°C

Frost forms under harvest moon

A clear night under a brilliant harvest moon lowered the temperature to -1.9°C in Greater Moncton this morning with some scattered frost.

Most sensitive vegetation survived as the thermometer fell below zero for less than six hours.

Many weather stations across New Brunswick had readings near or a few degrees below freezing.

On average, the first fall frost date in Moncton is 02 October with an growing season of 131 days.

However, a record breaking low of -3.2°C on 04 June brought a late frost (about two weeks later than usual) which proved devastating for farmers and gardeners.

So despite enjoying a long and warm summer, the frost-free season lasted 112 days which is about 19 days shorter than usual.

June 2018 – Cold nights, plenty of rain

img_2075

Ogilvie Brook, Irishtown Nature Park, 24 June 2018 (Dearing)

Greater Moncton has endured the coolest June in recent memory and while daytime highs were close to normal – with a few exceptions – overnight lows were cold, even frosty at times during the first half of the month.

A hard frost on 04 June with a record breaking low of -3.2 C was devastating for agriculture across New Brunswick especially in the Southeast.

Farmers suffered major damage – in some cases 50 to 80 percent losses – to crops such as grapes, strawberries and blueberries.

Oddly enough, the temperature had not been that low in all of May and not since 16 April had it been at least that cold.

Rainfall was about 60 percent above normal and was confined to a handful of major rain events with nine days being completely dry.

JUNE 2018 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH  20.3°C

Average LOW  6.6°C

AVERAGE  13.5°C (about 1.7 degrees BELOW normal)

Extreme HIGH  29.7°C (01 June)

Extreme LOW  -3.2°C (04 June)

RAINFALL  154.0 mm (about 60 percent ABOVE normal)

(Data courtesy Environment Canada)

Record lows in Maritimes

Temp0degrees
We are now several weeks into the growing season and temperatures are dropping to dangerously cold lows.

Farmers are concerned about damage to crops after a cool air mass and clear skies led to a frigid low of -4 C in parts of New Brunswick and Nova Scotia overnight.

Greater Moncton dropped to -3.2 C early today which broke the old record of -2.2 C from 1903 and records go back to 1881.

The following new record lows were set on 04 June:

  • Kouchibouguac National Park, NB -3.8 C (records since 1924)
  • Grand Manan, NB -2.2 C (records since 1883)
  • Port Hawkesbury, NS -2.6 C (records since 1875)
  • Ingonish, NS -2.2 C (records since 1950)
  • Summerside, PEI -1.9 C (records since 1898)
  • Charlottetown, PEI -1.0 C (records since 1872)