Children play at a water park in Las Vegas, NV, USA, 20 June 2017 (Las Vegas Review-Journal)
Excessive heat warnings have been posted in parts of California, Nevada, Utah, Arizona and New Mexico where record highs have been broken.
Las Vegas tied its record today of 47 C and Phoenix came close to its all-time high at 48 C.
Many flights have been delayed or cancelled since smaller jets can’t operate properly in dangerously hot conditions.
Temperatures have soared to 53 C in Death Valley, California which climbed to 56.7 C on 10 July 1913 – the hottest ever in North America.
Thunderstorm moves into Saint John, 12 June 2017 (AKS/Twitter)
After three days of daytime highs above 28 C in Greater Moncton, much cooler weather is coming thanks to a cold front and a change in wind direction.
The warm sometimes unstable air mass has created severe thunderstorms across the region.
Flash flooding was reported in Saint John yesterday after heavy downpours with wind and and hail which were also observed today in northeastern Nova Scotia.
Environment Canada is forecasting below seasonal temperatures for Southeast New Brunswick over the next couple of days.
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.
The Rocks Provincial Park, Hopewell Cape, NB, 01 Aug 2016 (Dearing)
To help celebrate New Brunswick Day, admission to all provincial parks was free on Monday.
Like thousands of others, I visited The Rocks Provincial Park at Hopewell Cape.
Hoping to escape the heat of Greater Moncton, the typical cool breeze off the Bay of Fundy was much warmer and temperatures climbed into the mid-20s Celsius.
Officials reported that more than 6,300 visitors took in the Rocks which was the highest figure for the date in at least 13 years.
Warm air arrives in Eastern Canada, 18 June 2016 (Environment Canada)
After almost a week of cold, rainy weather in Southeast New Brunswick, a warm air mass is moving in from Central Canada which will raise temperatures considerably.
After a chilly low this morning of 4.5 C in Greater Moncton, temperatures could reach as high as 30 C tomorrow which will be very close to a record high.
The heat returns just in time for the official arrival of summer on Monday night.
Map shows temperature contrast with a front on the Prairies, 02 Apr 2016 (Twitter)
Unusually mild Pacific air has drifted into the western Prairie Provinces breaking record highs in Alberta and Saskatchewan.
Some parts of southern Alberta reached 25 C yesterday and many cities either broke record highs or were close to breaking them.
Drumheller, AB set a new maximum of 24.4 C and Moose Jaw, SK reached a new record at 24.5 C.
The warm air didn’t reach Manitoba which is feeling the impact of the polar vortex which will sink over Eastern Canada this week.
Wildflowers still flourishing in NE Moncton, 06 Sept 2015 (Dearing)
The heat is on this Labour Day weekend in New Brunswick with a record breaking temperature in Greater Moncton on Sunday.
The thermometer reached 30.4 C which beat the old record of 29.9 C from 1983.
And the late summer scorcher continues with Environment Canada forecasting a high of 31 C for Monday!
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.
Sunny, warm fall day at Aboiteau Beach, Cap-Pele, NB, 28 Sept 2014 (Dearing)
The first weekend of autumn felt more like summer across New Brunswick with record breaking heat in many communities.
Greater Moncton reached 28.0 C today which broke the previous record high of 25.0 C set in 1959.
Fredericton also broke a record from the same year with a high of 28.8 C.
Environment Canada says other records were broken at Bathurst reaching 28.7 C and Kouchibouguac at 28.8 C.
Miramichi and St.Stephen were the hot spots in Canada at 29.2 C.
I like many others headed to Aboiteau Beach today where even the water was warm.
But change is on the way with a cold front and showers for Monday lowering temperatures to normal and even slightly below normal before recovering on Tuesday.
When a front moved across the Maritimes last night, it ushered in much cooler air than the last few days and most likely the last real summer heat of 2014.
In Greater Moncton yesterday, the thermometer climbed to 28.9 C and the hot spot in New Brunswick was 30.9 C in Fredericton.
A much different story today, although still pleasant, as daytime highs barely got into the low 20s Celsius throughout the province.