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 -19 C but temperatures will moderate on Sunday before falling again on Monday.
A snow free downtown Moncton, 28 Jan 2018 (Dearing)
With a daytime high of 7 C, it felt more like spring than midwinter along the Riverfront Trail in Moncton today.
Skateboarders instead of snowshoers were found along with joggers in shorts and T-shirts and a group having a picnic in the late afternoon sun.
A lack of snow cancelled numerous winter activities this weekend and ski resorts put snowmaking machines into overdrive to open just a handful of runs.
Environment Canada says winter is returning with a low pressure system arriving Tuesday with up to 15 cm of snow possible in Southeast New Brunswick.
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.
Freshly fallen snow in west end Moncton, 18 Jan 2018 (Dearing)
Almost 20 cm of snow fell in Greater Moncton yesterday and it came without any official weather warnings.
Some media outlets were suggesting more than 20 cm while Environment Canada was calling for between 10 and 14 cm.
The snowfall turned out to be the second heaviest of the season so far after the Christmas Day storm.
The low pressure system also brought 14 cm to Saint John, 17 cm in the Fredericton area and about 20 cm in Grand Manan and Alma.
Even higher amounts were recorded in eastern Prince Edward Island, northern Nova Scotia and Cape Breton Island.
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.
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.
Freezing rain (pink) sandwiched between snow (blue) to the north and rain (green) to the south, 23 Dec 2017 (Intellicast)
Streets and highways in Greater Moncton turned into skating rinks early this evening after freezing rain began falling through Central and Southeast New Brunswick.
Social media users mentioned how numerous vehicles were sliding off the roads in icy conditions and Magnetic Hill had become an ice sheet.
A low pressure system from the Northeastern United States brought mixed precipitation which eventually changed to rain.
Meantime, Environment Canada is monitoring a major snowstorm expected Christmas Day which could bring 20 cm snow to parts of New Brunswick.
An approaching low pressure system could bring the first significant snow of the season to much of New Brunswick this weekend.
Environment Canada has issued a snowfall warning with at least 15 cm and Accuweather is suggesting 8-15 cm could fall in Greater Moncton by Sunday.
Strong northeasterly winds are also in the forecast which may cause higher than normal water levels along the coastlines.
Nova Scotia is expected to receive mostly rain and there is some mixing of rain and snow possible for Southeast New Brunswick.
The same system also brought rare snow to northern Mexico and across the American South.
Heavy rain falls in northeast Moncton, 22 Nov 2017 (Dearing)
A low pressure system from the southwest brought significant rainfall for southern New Brunswick.
Environment Canada issued a rainfall warning with up to 50 mm expected along the Fundy coast, Greater Moncton and the Kennebecasis Valley.
Drivers are being warned about water pooling on roads and flash flooding.
Falling from a daytime high of 13 C to an overnight low of zero, rain could turn to snow with a slight accumulation possible.
Snow falling in west end Moncton, 10 Nov 2017 (Dearing)
A low pressure system moved into New Brunswick today bringing heavy rain accompanied by a vigorous cold front with Arctic air behind it.
As a result, the temperature in Greater Moncton plunged dramatically in just one hour – from a daytime high of 10.3 C at 11am to only 1.8 C by noon.
The thermometer continued to drop below freezing and rain turned to snow before the sky cleared in the late afternoon.
Environment Canada is forecasting a cold but dry weekend with sunshine and temperatures at or slightly above freezing.
An intense low pressure system which absorbed the remnants of Tropical Storm Philippe unleashed its fury on Ontario, Quebec and the Maritimes after racing through the Northeastern United States.
Environment Canada reports more than 100 mm of rain (a month’s worth) fell in Ottawa turning some streets into rivers in the National Capital (2017 is now its wettest year ever) and neighbouring Gatineau.
Strong winds gusted to 93 km/h at Ile d’Orleans with rainfall amounts of up to 90 mm across Southern Quebec.
Western New Brunswick felt the brunt of this storm in the Maritimes while Greater Moncton recorded 25 mm of rain and a peak wind gust of 69 km/h.