Atlantic Canada could feel an impact from Tropical Storm Chris which has formed off the coast of the Southeastern U.S.
The Canadian Hurricane Centre says the third named storm of 2018 will move northeastward and possibly strengthen to become a hurricane by early Wednesday.
The storm could weaken as it approaches Nova Scotia by Thursday.
The CHC notes there is still uncertainty in the forecast track and intensity of this system.
Beryl is the second named storm but first hurricane of the season and has been down downgraded to a tropical storm as it heads toward Puerto Rico.
Meantime, Environment Canada issued another heat warning for New Brunswick except the Fundy coast, Prince Edward Island and northern Nova Scotia as a warm, humid air mass pushes highs into the low 30s C with humidex values up to 38 on Monday.
A double rainbow after brief rain shower over Moncton, 04 July 2018 (Dearing)
Temperatures across Eastern Canada from Ontario to the Maritimes continued to soar into the 30s C with humidex values above 40.
Authorities in Quebec say at least 18 people have died, all over age 50, as a warm, humid air mass lingered over the province.
Record highs have been recorded in New Brunswick with a new maximum of 31.6 C at the Greater Moncton International Airport on Tuesday (beating 31.0 C from 1984) and 33.4 C today (beating 31.4 C from 1983).
The hotspot in the province was 34.1 C at St. Stephen.
Bouctouche Dunes coastline, NB, 01 July 2018 (Dearing)
Record highs could be broken in Greater Moncton over the next couple of days if forecast highs in the low to mid 30s C are reached on Tuesday and Wednesday.
Environment Canada has issued a rare heat warning for New Brunswick, mainland Nova Scotia and Prince Edward Island with cooler conditions along the coast.
A warm, humid airmass is expected to push humidex values about 40 during the day and barely falling below 18 C at night – dangerous levels for those susceptible to heat.
Forecasters believe warm, humid weather will persist until later this week when a cold front brings temperatures closer to normal for the weekend.
A severe thunderstorm rolls through Greater Moncton ahead of warmer weather, 29 June 2018 (Dearing)
At long last, warm weather is finally pushing into New Brunswick after the coldest June in recent memory.
Environment Canada says a warm, humid air mass will settle over the Maritimes this weekend and persist into next week.
Temperatures in the low 30s Celsius are expected with high humidity making it feel much warmer.
Relief will come along coastal areas which can expect slightly cooler conditions.
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.
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.
Flooding in Grand Forks, BC, 11 May 2018 (Regional District of Kootenay Boundary)
A combination of heavy rain, warm temperatures and rapid snowmelt from the mountains has created major flooding in Interior British Columbia.
About 4,000 residents have been evacuated from their homes mainly in the Regional District of Kootenay Boundary.
At the confluence of two rivers – the Granby and the Kettle – the city of Grand Forks has been hardest hit where firefighters have rescued dozens by boat.
The province has issued evacuation orders or alerts in six other regional districts and eight First Nations.
Officials say this spring’s flooding is worse than the devastating floods of 1948.
Dandelions growing in NE Moncton, 02 May 2018 (Dearing)
Dandelions have made their return to Southeast New Brunswick a little later than usual thanks to a cold spring.
The yellow plants or weeds were spotted today when the temperature climbed to 24.5 C in Greater Moncton – the warmest high so far this year.
The hotspot in New Brunswick was St. Stephen at 29 C and Fredericton was not far behind at 28 C.
But a cold front is pushing through the province which will bring rain and dramatically lower temperatures overnight with single digit highs expected tomorrow.
Given the recent stretch of below seasonal temperatures in Southeast New Brunswick, I wasn’t optimistic we would reach 20 C anytime soon.
But yesterday the thermometer climbed to 21.2 C in Greater Moncton marking the first time to reach and surpass that threshold in 2018.
Over the last five years, we have reached 20 C over a two week period from mid-April to early May.
(Data courtesy Environment Canada)
It felt more like mid-spring than late winter across Southern Ontario today.
A mild air mass combined with strengthening February sunshine to set new record highs in the region.
Environment Canada reports April-like maximums for 28 February:
- Sarnia, 16.8 C, old record 15.1 C from 2016
- Toronto Pearson Airport, 16.2 C, old record 14.0 C from 2016
- Windsor, 16.1 C, old record 13.6 C from 2017
- London, 15.1 C, old record 14.2 C from 2016
- Kitchener-Waterloo, 15.0 C, old record 12.4 C from 2016