Kalin's Call: Frosty October morning sets record lows in the Maritimes
A number of weather stations recorded record-low temperatures in the Maritimes on Monday.
New Brunswick
Bathurst Airport: -1.8 C
Edmundston: -6.1 C
Kouchibouguac: -2.5 C
Saint John Airport: -2.1 C
St. Stephen: -3.3 C
Nova Scotia
Bedford Range: -1.2 C
Halifax International Airport: 0.4 C
Halifax Windsor Park: 3.3 C
Malay Falls: -0.9 C
P.E.I.
Charlottetown Airport: -0.9 C
Several other sites in the region came close to matching record lows. In general, morning temperatures were several degrees below early October averages, which range from about 2 to 6 degrees Celsius. Patchy frost and even some ice was spotted around the region to start the day.
Recorded low temperatures were reported on Oct. 3, 2022. Some of the sites set new record lows for the date.
The combination of being on the eastern side of a high-pressure system set us up for the fall frost. The atmosphere circulates clockwise around high-pressure systems in the northern hemisphere. That circulation brought a northerly wind to the Maritimes that tapped into colder air in place in northern Quebec and Labrador. Additionally, the high pressure kept the night sky clear and the wind light, allowing for more radiational cooling (loss of heat due to emission of longwave radiation from the Earth’s surface).
High pressure has brought a chillier northerly flow of air, clear sky, and light wind -- a perfect recipe for frost.
Given it’s a very similar weather pattern for Monday night, expect another chilly, even frosty, start to the day Tuesday.
Frost advisories remain in effect for large parts of the Maritimes for Monday night. Note that frost advisories are only issued during determined “growing seasons,” and since northern New Brunswick is past that part of the season, no advisories are in effect there despite the fact that there will almost assuredly be some frost development Monday night. Frost advisories will no longer be issued for other parts of the Maritimes after October 15.
Another chilly early October night is ahead with more frost advisories issued.
The average first frost in the Maritimes ranges from early September in northwestern New Brunswick to late September/early October for much of the rest of the region.
Some coastal areas of Nova Scotia and eastern P.E.I. sometimes don’t see frost until mid-October. A turn to southerly winds will bring the overnight low temperatures up after Tuesday. That will last until Saturday night, when a northwest wind takes back over following the passage of a cold front on Saturday.
A general map on when parts of the region typically experience a first fall frost. Some areas, like the Cape Breton Highlands, lack data.
CTVNews.ca Top Stories
Widow looking for answers after Quebec man dies in Texas Ironman competition
The widow of a Quebec man who died competing in an Ironman competition is looking for answers.
Amid concerns over 'collateral damage' Trudeau, Freeland defend capital gains tax change
Facing pushback from physicians and businesspeople over the coming increase to the capital gains inclusion rate, Prime Minister Justin Trudeau and his deputy Chrystia Freeland are standing by their plan to target Canada's highest earners.
World seeing near breakdown of international law amid wars in Gaza and Ukraine, Amnesty says
The world is seeing a near breakdown of international law amid flagrant rule-breaking in Gaza and Ukraine, multiplying armed conflicts, the rise of authoritarianism and huge rights violations in Sudan, Ethiopia and Myanmar, Amnesty International warned Wednesday as it published its annual report.
Photographer alleges he was forced to watch Megan Thee Stallion have sex and was unfairly fired
A photographer who worked for Megan Thee Stallion said in a lawsuit filed Tuesday that he was forced to watch her have sex, was unfairly fired soon after and was abused as her employee.
Tom Mulcair: Park littered with trash after 'pilot project' is perfect symbol of Trudeau governance
Former NDP leader Tom Mulcair says that what's happening now in a trash-littered federal park in Quebec is a perfect metaphor for how the Trudeau government runs things.
U.S. Senate passes bill forcing TikTok's parent company to sell or face ban, sends to Biden for signature
The Senate passed legislation Tuesday that would force TikTok's China-based parent company to sell the social media platform under the threat of a ban, a contentious move by U.S. lawmakers that's expected to face legal challenges.
Wildfire southwest of Peace River spurs evacuation order
People living near a wildfire burning about 15 kilometres southwest of Peace River are being told to evacuate their homes.
U.S. Senate overwhelmingly passes aid for Ukraine, Israel and Taiwan with big bipartisan vote
The U.S. Senate has passed US$95 billion in war aid to Ukraine, Israel and Taiwan, sending the legislation to President Joe Biden after months of delays and contentious debate over how involved the United States should be in foreign wars.
'My stomach dropped': Winnipeg man speaks out after being criminally harassed following single online date
A Winnipeg man said a single date gone wrong led to years of criminal harassment, false arrests, stress and depression.