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.
A snowy Gore Park, Hamilton, ON, 11 Nov 2019 (City of Hamilton)
An early winter storm tracked south of the Great Lakes on Monday and brought snow to Southern Ontario and Southern Quebec.
Snowfall amounts generally ranged between 10 and 30 cm.
Environment Canada says Toronto marked its earliest major snowfall on record with about 15 cm.
Arctic air has filtered in behind the storm prompting the city to issue an extreme cold weather alert with a possible overnight low of -15°C.
Snowfall amounts (cm), Tuesday 5pm EST:
- Montreal 20
- Quebec City 20
- Windsor 19
- Hamilton 17
- Toronto (downtown) 15
- Ottawa 13
An early blast of winter in Moncton, 09 Nov 2019 (Dearing)
Some drivers were prepared when snow entered the forecast for the first time this week and had their winter tires installed.
But many drivers were caught off guard by the heavy, wet – sloppy – snow which fell across Southern New Brunswick, Prince Edward Island, northern Nova Scotia and southwestern Newfoundland.
A low pressure system brought rain on Thursday but snow fell by evening as the temperature dropped to the freezing point.
The snow continued throughout Friday creating slippery roads which left plow operators scrambling to deal with the early blast of winter.
Many minor accidents were reported with vehicles sliding into the ditch.
The Trans Canada Highway at Cobequid Pass was forced to close for several hours Friday night after numerous tractor trailers got stuck in snow and blocked the road.
Snowfall amounts (Thu-Fri) in cm:
- Corner Brook 19.4
- Greater Moncton 18.8
- Fredericton 10-15 (estimate)
- Deer Lake 13
- Saint John 8.9
- Halifax Stanfield 5.8
- Charlottetown 3.9
(Data courtesy Environment Canada)
A low pressure system moving through the Maritimes brought the first snow of the season to Southeast New Brunswick today.
A cold rain eventually turned to snow in Greater Moncton and 7.2 cm fell with Environment Canada calling for up to 10 cm tomorrow.
As the above chart shows, the first measurable snow in the region is typically recorded from late October to late November.
Tire shops have reportedly been busy this week as drivers scramble to get their snow tires installed.
Tree leaning on power lines, 01 Nov 2019 (NB Power)
Blustery but mild weather on Halloween continued throughout the first day of November in Southeast New Brunswick.
A cold front created strong winds with a sustained high of 64 km/h and a peak gust of 94 km/h at the Greater Moncton Airport.
Many trees and branches – already weakened by Dorian earlier this fall – came down onto power lines with NB Power dealing with almost 60,000 customers without electricity by late Friday.
Environment Canada warned of gusts up to 110 km/h in the Tantramar Marsh which forced the shutdown of the Trans Canada Highway between Amherst and Sackville until winds subsided.
The daytime high on 01 November was 19.4°C which was slightly warmer than the October maximum of 19.3°C.
The same storm system also hit Quebec where more than one million customers lost power, one man was killed by a falling tree and a canopy collapsed at a service station.
Centennial Park, Moncton, 14 Oct 2019 (Dearing)
Daytime highs were consistently in the mid-teens in Southeast New Brunswick during October which usually sees a sharp drop in temperature as the month progresses.
The average temperature was 0.7°C above normal in Greater Moncton with two days failing to reach 10°C and the warmest maximum on the last day, 19.3°C.
Six days had lows below freezing with some light frost but there was no hard freeze allowing vegetation to flourish.
The precipitation total mostly came from five rainfall events with not a single snowflake recorded.
Fall foliage peaked prior to Thanksgiving weekend and several strong wind events left few leaves on trees by Halloween night.
OCTOBER 2019 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH 13.5°C
Average LOW 3.0°C
AVERAGE 8.3°C (about 0.7 degrees ABOVE normal)
Extreme HIGH 19.3°C (31 Oct)
Extreme LOW -2.7°C (27 Oct)
RAINFALL 102.7 mm (slightly BELOW normal)
(Data courtesy Environment Canada)
Fallen leaves, Centennial Park, Moncton, 14 Oct 2019 (Dearing)
Fewer trick or treaters are expected to be spooking neighbourhoods in Greater Moncton thanks to heavy rain and strong winds.
A low pressure system could bring at least 30 mm of rain to Southeast New Brunswick over the next 24 hours.
Potentially hurricane-strength winds are expected tomorrow ahead of a cold front but temperatures will be warm reaching the high teens.
Environment Canada has issued wind warnings with gusts from 60-90 km/h and possibly up to 110 km/h in the Tantramar Marsh.
Forecasters say the wind may cause damage to buildings such as to roof shingles and windows.
The wind may not die down until early Saturday.
Courtesy Weather Nation
The remnants of Tropical Storm Olga were felt across Southern Ontario on the weekend with rainy and windy conditions.
Environment Canada says between 30 and 60 mm of rain fell across the region including the Greater Toronto Area.
Wind gusts were up to 80 km/h in some locations with a peak of 104 km/h recorded at Port Colborne on Lake Erie.
Olga formed in the Gulf of Mexico several days ago and made landfall in Louisiana before quickly churning northward toward the Great Lakes.
Forecasters are calling for more wet weather and cooler conditions by Halloween.
Few leaves remain on trees after strong winds, Irishtown Nature Park, 25 Oct 2019 (Dearing)
Another low pressure system moved through the Maritimes on Wednesday bringing a lot of rain to the region especially to western New Brunswick.
Winds were also a factor with this storm but for a shorter period of time even though the peak gust was 81 km/h which was slightly higher than last week.
Here some rainfall totals (mm):
- Saint John 59
- Edmundston 59
- Bathurst 49
- Fredericton 48
- Miramichi 37
- Sydney 30
- Charlottetown 22
- Halifax Stanfield Airport 21
- Greater Moncton 19
(Data courtesy Environment Canada)
A tree topples over in Halifax, NS, 17 Oct 2019 (Nova Scotia Power/Twitter)
A so-called bomb cyclone with wind and rain moved through the Maritimes in just a few hours today.
The intense low pressure system brought winds gusting up to 89 km/h in Saint John which uprooted some trees already weakened by Hurricane Dorian last month.
Greater Moncton recorded a peak gust of 78 km/h along with 20 mm of rain which caused some localized flooding as leaves clogged storm drains.
The winds were even stronger in Nova Scotia with a gust of 101 km/h at Halifax harbour and 106 km/h in Lunenburg which brought trees down knocking out power.
The highest gust was near Cheticamp on Cape Breton Island at 148 km/h.
Rainfall amounts across New Brunswick and Prince Edward Island ranged from 15 to 30 mm with more than double those amounts in Nova Scotia.