After a wave of diminishing rain & thunder this morning, we saw a lull with building clouds. With those clouds, scattered storms have developed this afternoon & been moving northwest & north-northwestward.
Highs reached 82-88 with continued humid to muggy dew points.
Historic, all-time record heat for the month of May is over Ontario & parts of New England. Check out the temperatures around Ottawa & Montreal, Quebec! 96 in May is beyond extreme there.
It is as high as the lower 90s even in Maine.
Frederiction, New Brunswick hit 86 today.
Map & temperature template courtesy of the University of Utah MesoWest mesonet:
Even way north into Quebec, temperatures are near 90.
It is that hot, hot upper ridge sitting in the Northeast that is blocking systems (causing stagnation) & making for much flooding over the Southeast, Southern Plains & even parts of the Midwest.
This ridge was partially behind the 8-9" rainfall atop wet soil that caused the dam collapse at Midland, Michigan, flooding the city.
It is the ridge that will guide the remnants of "Bertha" through Pennsylvania to western New York.
The pattern will break down & allow us to get a shot of cooler, less humid air Friday & into the weekend.
However, ridge with record heat will move east & engulf the Plains & Midwest (eventually the Northeast) later next week & beyond.
After a few showers & storms this evening, some showers/t'showers are possible late tonight-tomorrow morning, followed by a break. In that break, the clouds will build into scattered storms.
Scattered showers & storms are likely Thursday night-Friday morning & right into midday.
Later tonight-Thursday morning:
Friday morning-early afternoon:
Decreasing clouds, lowering humidity & northwest winds up to 30 mph will follow passage of this front.
Highs will be cooler in the 70s.
Weekend looks great with sunshine & cumulus with highs 71-76 & lows 45-52.
Hot upper ridge builds in next week. A few isolated storms are possible as it expands east & northeastward. A "Ridge Rider" or complex (MCS) of severe storms could affect part of the area Wednesday late on the periphery of the upper ridge ("Ring of Fire").
Hot, humid 90s are still looking likely late next week to next weekend.