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.
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.
Warm weather in Ontario heading to the Maritimes, 17 May 2017 (TWN)
A high pressure system is pushing warm, southerly air into the Maritimes with highs approaching 30 C tomorrow in New Brunswick.
Environment Canada says humidex values could climb to 39 which has led to a Level 1 Heat Alert for Fredericton and St. Stephen.
The provincial health department issues this alert when anyone vulnerable to the heat may be affected.
Greater Moncton could break a record on Thursday if the temperature reaches the forecast high of 28 C.
Thermometer reading in NW Moncton, 24 July 2016 (Dearing)
The New Brunswick Department of Health issued a Level 1 Heat Alert for Greater Moncton, Miramichi and Fredericton today.
A very warm day with a high of 29 C could lead to humidex values of 35 of more – prompting a heat alert from the province.
The system was rolled out to all major cities in New Brunswick this summer after a successful pilot project in Fredericton.
New Brunswickers are urged to take precautions to keep cool such as seeking shade or air conditioning, drinking lots of liquids, checking on those most vulnerable and never leaving children or pets in vehicles.
Downtown Moncton in the distance from atop Magnetic Hill, 07 Sept 2015 (Dearing)
A record high was very close to being broken in Greater Moncton yesterday when the thermometer hit a scorching 32.0 C and the humidex peaked at 39.
The record was 32.2 C set in 1945 – close but no cigar as the saying goes!
The hotspot in New Brunswick was in Miramichi yesterday at 32.5 C and records were broken in Bouctouche and Caraquet.
After a cooler day with some much needed rain today, Environment Canada is forecasting a return to warmer weather in the mid-20s Celsius for the next couple of days.
For the first time this summer, Environment Canada has issued a heat warning for Greater Moncton and Southeast New Brunswick.
Humidex values between 35 and 40 degrees are being experienced inland across much of New Brunswick today.
Conditions are expected to persist this afternoon and then gradually diminish this evening as temperatures drop in the low 20’s overnight.
Another period of hot and humid weather is expected for Wednesday before subsiding at night.
Drink plenty of liquids especially water before you feel thirsty to decrease your risk of dehydration.
Heat warnings are issued when high temperatures or humidity are expected to pose an elevated risk of heat stroke or exhaustion.
Alma, NB, 01 July 2014 (Dearing)
Environment Canada issued a heat warning today for all of New Brunswick and it will remain in place for 02 July as well.
A warm and humid air mass over the Maritimes has resulted in humidex values reaching and exceeding 40.
Only some coastal areas will escape the heat, especially along the Fundy coast where onshore southwesterly winds will bring cooler temperatures.
Greater Moncton climbed to 31.3°C (humidex 38) today but the hot spot in the province was Bathurst at 34.2°C (humidex 40).
Hot, humid weather made a comeback in Southern Ontario yesterday with humidex values soaring near 45 in some areas.
Environment Canada reported new heat records were set at Toronto Buttonville Airport hitting 35.0°C, Windsor at 34.6°C and Collingwood at 33.7°C.
The hotspot was Sarnia at an unseasonable 35.9°C (almost 97°F).
Some of that heat filtered into New Brunswick today – St. Stephen climbed to 28.5°C with a humidex of 37 and even Moncton reached 23°C with a humidex of 31.