Drastic cooldown

Temperature dropped below 10 C by early afternoon, 02 June 2018 (Dearing)

Unbelievable!  Conditions went from hot to cold in just a matter of hours after a cold front swept through New Brunswick today.

In Greater Moncton, the high of 18°C was set early this morning before the front changed the wind direction from south to north and the temperature dropped six degrees in an hour to 11°C by 9am.

This is in stark contrast to yesterday when the thermometer climbed to 29.7°C which was the warmest high so far this year.

New maximum records were set for 01 June in Bouctouche at 32.6°C, Miramichi at 32.7°C and 33.2°C at Kouchibouguac National Park.

Advertisements

TWN unveils summer forecast

summer2018
Spring has sputtered in New Brunswick – it was nowhere to be found in March, finally appeared in late April and although May has had a few warm days, the month is still running slightly below normal in Greater Moncton.

So what about summer?

In its seasonal forecast, the Weather Network believes a cool June should give way to more consistent warm weather during July and August.

A humid summer is expected which may result in warmer than normal temperatures at night – overnight lows average about 12 C.

While periods of dry weather are expected, heavy showers and thunderstorms should bring rain totals to near normal for the season.

Snow in late May!!!

While a snowflake or two is common in early May in New Brunswick, accumulating snow is rare in the latter part of the month.

A cold front pushed through the province today and with a change in wind direction from south to north, precipitation changed from rain to snow and the thermometer plummeted.

Bathurst and Miramichi both reported snow today and in some areas it began to stick to the ground while thunderstorms rolled through further south.

In Greater Moncton, the temperature drop was dramatic with a high of 16 C at 11am and by 4pm it was only 5 C.

Meantime, parts of central Newfoundland are under a snowfall warning with 15 to 30 cm in the forecast.

Last frost of spring?

frost

Frost covers a maple leaf (Twitter)


When the temperature dropped to -0.3 C early this morning, frost could be found in Greater Moncton.

The coldest low in New Brunswick was -5.9 C at Edmundston!

Thanks to cool, dry air with no cloud cover, Environment Canada has issued another frost advisory for tonight.

But keep in mind it’s not that unusual based on the 30-year average (1981-2010).

The average last spring frost date is 23 May in Greater Moncton and the first fall frost is 2 October for a growing season of 131 days.

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.

February 2018 – Warm with more rain

Shubie Sam

Shubenacadie Sam predicted an early spring, 02 Feb 2018 (Shubenacadie Wildlife Park, NS)

The first half of February in Southeast New Brunswick was decidedly winter with frigid overnight lows dropping to a numbing -21 C in the first few days alone.

But the second half of the month was spring-like with most daytime highs above freezing and more tolerable minimums.

The average monthly temperature for Greater Moncton was about 3.2 degrees above normal and anything above 2 degrees is considered significant in meteorology.

Precipitation was slightly above average with more rain than snow falling compared to normal.

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

Average HIGH  1.0 C

Average LOW  -9.7 C

AVERAGE  -4.4 C (about 3.2 degrees ABOVE normal)

Extreme HIGH  12.9 C (21 Feb)

Extreme LOW  -20.5 C (03 Feb)

RAINFALL  42.0 mm (more than 30 percent ABOVE normal)

SNOWFALL  49.2 cm (about 25 percent BELOW normal)

(Data courtesy Environment Canada)

Another flash freeze!

img_0271

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.

Another roller coaster ride!

img_0459

A view of downtown Moncton from city hall, 23 Jan 2018 (City of Moncton)

A low pressure system from the west is bringing another mixed bag of precipitation to the Maritimes and once it departs more cold air will filter in behind it.

Schools were cancelled in New Brunswick today as snow began in the morning followed by a changeover to ice pellets and freezing rain and eventually to rain as the temperature climbed above freezing.

Flooding is possible again since the partially frozen ground is less able to absorb heavy rainfall.

Environment Canada issued a freezing rain warning for Greater Moncton but it was dropped later in the day with less than an hour of ice pellets/freezing rain recorded.

The temperature is expected to reach 10 C by early Wednesday before plunging to -13 C by early Thursday – a difference of 23 degrees in less than a day.

Flooding then flash freeze

Coldfront13Jan

Satellite image taken just before cold front sweeps through Maritimes, 13 Jan 2018 (earth.nullschool.net)

After a low pressure system brought heavy rain and strong winds gusting up to 74 km/h to Southeast New Brunswick early today, a cold front moved through the region plummeting temperatures below freezing.

The thermometer in Greater Moncton dropped an incredible 14 degrees in just one hour – from 15 C at 11am to 1 C at noon – and then fell below zero shortly afterward.

Today’s daytime high of 16.7 C has unofficially broken the 13 January record of 12.2 C from 1972.

FloodMoncton13Jan

Floodwaters in Moncton near Wheeler Blvd. and Crowley Farm Rd., 13 Jan 2018 (City of Moncton)

Flooding was reported in various parts of Greater Moncton and the province was forced to close some roads due to high water levels.

Before the precipitation ends later tonight, rain will change to freezing rain mixed with ice pellets and then finally to snow.

Arctic air to retreat

BostonJan5.18

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.