From cold to hot

Leaves are finally bursting out, Irishtown Nature Park, 24 May 2020 (Dearing)

Numerous record lows were set across the Maritimes early Sunday morning as temperatures plummeted under clear skies and light winds.

But the cold will be replaced by heat as the jet stream surges north over Eastern Canada this week.

Environment Canada has issued a special weather statement for New Brunswick with unseasonably warm weather expected for late May.

Records will be challenged in Greater Moncton as daytime highs soar to 30°C and humidex values reach the mid-30’s.

New record lows set on 24 May:

  • Woodstock -4.7°C
  • Edmundston -3.0°C
  • Grand Manan -2.8°C
  • Bouctouche -1.9°C
  • Saint John -1.6°C
  • Kejimkujik NP -1.6°C
  • Summerside -1.4°C

(Data courtesy Environment Canada)

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.

Historic heat in Western Europe

The jet stream has carried hot air from northern Africa across western Europe which is shattering all-time record highs in numerous countries.

The second extreme heat wave this summer has set new maximums in Belgium at 38.9 C, the Netherlands at 39.2 C and Germany at 40.5 C.

Bordeaux, France reached 41.2 C on Tuesday which was its highest temperature ever.

Thanks to the urban heat island effect, major cities are more prone to hot weather than rural areas and don’t cool down that much overnight.

On Thursday, the UK Met Office believes Britain could smash its current historic high of 38.5 C recorded in Faversham in August 2003.

Mini heat wave

Temp30
Thanks to high pressure and a jet stream surging north, New Brunswick will feel the heat over the next two days.

Greater Moncton is expecting a high of 30 C today and 31 C tomorrow with humidex values between 30 and 36.

Environment Canada says the warmest conditions will be from mid-afternoon to early evening and precautions should be taken in extreme heat.

The passing of a cold front this weekend will bring temperatures closer to normal.

Where’s spring?

SnowbankApr09

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.

Warm Thanksgiving weekend

Aboiteau Beach, Cap-Pele, NB, 08 Oct 2017 (Dearing)

The jet stream brought warm southerly air into the Maritimes allowing temperatures in Southeast New Brunswick to climb into the 20s this Thanksgiving weekend.

Environment Canada says Greater Moncton reached a daytime high of 20.2 C on 07 October, 23.7 C on 08 October (near the record of 23.9 C from 1970), and 22.9 C on 09 October.

Given the autumn warmth, I couldn’t resist a visit to Aboiteau Beach (and neither could a handful of others) which was near 24 C under a mostly cloudy sky and it was quite windy.

Greenwood, Nova Scotia was the hot spot in Canada hitting 26 C for two days in a row.

Early fall heat

Aboiteau Beach, Cap-Pele, NB, 23 Sept 2017 (Dearing)

This may have been the first weekend of autumn in Southeast New Brunswick but it felt more like the first weekend of summer instead.

Greater Moncton climbed to 27.7 C yesterday (23 September) while today (24 September) it hit 27.9 C and the normal high for late September is 17 C.

High pressure and a northerly jet stream has pushed heat across Eastern Canada with highs in the low 30s C in many parts of Ontario and Southern Quebec.

A heat warning was in place as Toronto Pearson Airport reached a record-breaking 33.1 C yesterday and 33.6 C today.

First snow flurries of the season!

webcamsnow25oct

Courtesy NB Highway Cameras, 25 Oct 2016

The first snow flurries of the season were spotted in Greater Moncton early this morning and snow even covered the ground in northwestern New Brunswick.

The jet stream has dipped south of the Maritimes which has allowed cold air to seep in with below normal temperatures.

The daytime high in Moncton today was only 5.2 C which is below the average maximum of 10 C for late October.

SW Nova Scotia hit by drought

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Dry pond, Arcadia, Yarmouth Co., NS, 14 Sept 2016 (Comeau/Yarmouth Vanguard)

While it has been dry this summer in parts of New Brunswick, no where has it been drier in the Maritimes than in southwest Nova Scotia.

Meteorologists say while the jet stream normally flows through the middle of the region providing adequate amounts of rain, it was pushed farther north this summer due to the Bermuda High which has been northwest of its usual position.

As a result, rainfall in northern New Brunswick has been above average while southwest Nova Scotia has only received 32 percent of its normal summer precipitation.

For example, Yarmouth had 87 mm of rain during June, July and August which is well below the average of 268 mm.

Emergency management officials say at least 1,000 households have run out of water and bottled water donations from major retailers are being shipped to affected communities.

Cold, clouds linger in Southeast NB

Magnolia

Magnolia tree in bloom, downtown Moncton, 03 May 2016 (Dearing)

Greater Moncton has been enveloped by cloudy skies, cold conditions and frequent showers this week thanks to our close proximity to the jet stream.

While temperatures struggled to reach 6 or 7 C in the southeast, northwestern New Brunswick climbed into the low 20s today.

Forecasters say that warm air will finally push south this weekend with daytime highs near 18 C.