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.
Aboiteau Beach, Cap-Pele, NB, 11 June 2017 (Dearing)
Although I walked along Parlee Beach earlier this spring, my first official beach day of the season was a visit to Aboiteau Beach in Cap-Pele yesterday.
Under a mostly sunny sky, the afternoon high soared above 30 C although the water of the Northumberland Strait was a lot cooler.
Signage indicated the water quality was good for swimming.
The only minor downside was the wind which at times gusted to more than 80 km/h creating mini sand storms on the beach.
Severe thunderstorm, Caraquet, NB, 18 May 2017 (R.Mallais/Twitter)
After a severe ice storm in February, the Acadian Peninsula has been hit with bad weather again and this time by possible tornadoes.
Environment Canada is investigating after social media showed downed power poles, partially collapsed roofs and overturned concrete last night.
Severe thunderstorms can cause straight line winds with gusts as high as 130 km/h which is the same strength as the lowest level of tornado.
NB Power is working to restore electricity for thousands in northeastern New Brunswick and it could be sometime tomorrow before full restoration occurs.
The same frontal trough of low pressure moved into Greater Moncton this afternoon creating a 9 degree temperature drop (23 C to 14 C) in less than an hour and a wind direction change from southwest to northeast.
Jones Lake, west end Moncton, 18 May 2017 (Dearing)
Summer-like air enveloped the Maritime Provinces with new record high temperatures set in all three provinces yesterday.
Environment Canada says more than a dozen communities in New Brunswick hit new maximums for the date including St. Stephen at 34.0 C (hot spot in Canada), Fredericton at 33.0 C and both Woodstock and Edmundston at 32.0 C.
While the thermometer reached a record-breaking 30.5 C at the Greater Moncton International Airport, the overall 18 May record for Moncton is 31.7 C from 1918.
In Nova Scotia, new records were set in Greenwood and Kejimkujik Park at 32.0 C while Summerside, Prince Edward Island warmed up to 26.3 C.
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.
Fall colours in Fairview Knoll Park, Moncton, 08 Oct 2016 (Dearing)
The fine fall weather is continuing in Greater Moncton with a summer-like high of 24.4 C yesterday which ties the record from 1946.
Record highs were set across New Brunswick with the hot spot being Kouchibouguac at 25.9 C.
Today, Greater Moncton reached 23.9 C which once again ties a record, this time from 1970.
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.
NB daytime highs from Environment Canada, 14 July 2016
Greater Moncton has yet to reach 30 C this summer but warm, breezy conditions pushed the daytime high to 29 C today with winds gusting up to 72 km/h.
Many other New Brunswick locations surpassed 30 C with Bathurst climbing to 33 C which was the hot spot in Canada.
Temperatures were cooler along the Fundy coast with a maximum of 20 C in Saint John and 23.4 C on Grand Manan Island.
Shepody Bay from Dorchester Beach, NB, 26 June 2016 (Dearing)
Greater Moncton reached a daytime high of 29.8 C today which is the warmest temperature so far in 2016.
Environment Canada reports at least nine other communities in New Brunswick reached 30 C or higher.
The hotspot was Bathurst at a sizzling 33.3 C.
The warm, windy conditions were not helpful for firefighters near Bouctouche battling a forest fire which was eventually brought under control.