Wednesday, June 25, 2025

After Day Of More Bonkers Record Highs, Extreme Heat Now Ending. Also, Severe Storms, And Upcoming Flood Threat?

A classic example of what I call a SLC, my technical
meteorological term for "Scary Looking Cloud."
Looks like a tornado behind that hill, but it's just
scud clouds rising into a thunderstorm looking
east from Charlotte, Vermont early Tuesday evening
The thunderstorms broke the record heat
in Vermont toward the end of the dya. 
Tuesday was another day of absolutely bonkers record highs in the Northeast, including here in Vermont

 Plus, at the end of the day, Vermont was rattled by thunderstorms, which at least tempered the heat. . 

Despite the humidity you might still feel this morning, it's going to get a lot better, and very soon. 

But we'll have to watch for more interesting weather coming up in Vermont over the next few days.

There's lots to get into within this mornings post, so settle in!    

HEAT RECORDS SHATTERED

The wildest records were set from central New England on south.

Preliminary data indicates that Massachusetts broke the record for the entire state for the hottest June temperature ever observed - 103 degrees in Barre Falls.

Also, Connecticut reportedly broke its statewide record high for June with 103 degrees in Natchaug. Rhode Island broke its statewide record with 102 degrees. Maine (100 degrees) and New Hampshire, (102 degrees) tied their statewide June record high. 

Lebanon, New Hampshire, just across the Connecticut River from White River Junction, Vermont set their all time record high of 100 degrees. Lebanon's previous record hottest-ever day didn't last long, considering it was set on Monday.  

 I suspect once final reports come in, we'll find a few places in southeastern Vermont reached 100 degrees. That would be the second June in a row that a weather station in the Green Mountain State reached 100 degrees. Which is insane. 

Further south, several cities set new records for hottest temperature for the entire month of June. Among them were Boston, with 102 degrees; Providence, Rhode Island at 100 degrees;  Newark, New Jersey, 103 degrees; and Manchester, New Hampshire, 102 degrees 

A weak boundary ahead of a cold front prevented far northern areas of Vermont from getting even hotter than Monday. (I noticed rapidly rising temperatures abruptly leveled off somewhat near and north Route 2 in the early afternoon with a wind shift from south to west).

Still before some late afternoon and evening scattered thunderstorms arrived, record highs were set in Vermont and neighboring New York. This after a slew of record highs on Monday. 

Plattsburgh, New York hit 99 degrees, a record high and just barely missing out on two days in a row at or above 100 degrees.

Burlington on Tuesday was "colder" than Monday with a record high of "only" 97 degrees. That beat the old record of 93 set in 2003. 

Other Vermont record highs including 93 in Montpelier, exceeding the old 1995 record by four degrees. St. Johnsbury roasted at 96 degrees for a new record high. I noticed Springfield, Vermont reached 98 degrees.  

STORMS

Occasionally strong thunderstorms developed late Tuesday afternoon and evening in central and northern Vermont and New York as a cold front approached. Atmospheric conditions weren't all there for most strong storms to last long, but some managed to hold together. 

One storm formed near Burlington, Vermont and held together pretty intensely all the way down Interstate 89 to Barre, then on through eastern Vermont into New Hampshire, 

This thing produced a string was severe thunderstorm warnings along its path. Not many reports of damage came in, mostly I think because people were more focused on the heat.  However. Route 14 between Brookfield and East Randolph was reportedly blocked for awhile Tuesday evening due to numerous fallen trees. 

HEAT ENDS TODAY  

Early morning risers today would be forgiven for scoffing if I told the the record heat wave in Vermont is over. It was still really humid statewide early today, which would suggest another hot day.

What happened to the cold front?

It came through, but the cool, dry air lagged behind it a bit. But that much better air will gush in during the day today. You'll notice the humidity levels falling through the morning and afternoon. The air will feel much fresher, especially in the north by this afternoon.

Up in northern and central Vermont, where dew points were at uncomfortable levels near 70 degrees early this morning, will be in the refreshing 50s by this afternoon. High temperatures in the north will only be near 80 this afternoon. 

It'll take a little longer to flush out the hot, humid air in southern Vermont, especially in the lower Connecticut River Valley. High there could touch 90 degrees. Residents down there might not notice the lower humidity until later this afternoon.

MORE TROUBLE AHEAD?

The cold front that is cooling us off won't get all that far to our south, and will start moving north again as a warm front over the weekend.

At first, temperatures around here will actually be below normal for a change tomorrow and especially Friday. Some towns on Friday might not get out of the upper 60s, meaning highs Friday in a few places could be cooler than low temperatures were on Tuesday. . 

There could be some trouble with this in northern Vermont later Friday and Saturday. Some forecasts indicate a disturbance riding west to east along the front could unleash some heavy rains - perhaps enough to cause some flash flooding.

If that happens, it's most likely north of Route 2. However, this forecast is pretty uncertain. The heavy rain might set in southern Quebec instead. A few models put the heavier rain in southern Vermont.

Or perhaps the torrent won't really materialize at all. For now, NOAA's Weather Prediction Center has put far northern Vermont and northeast New York in a slight risk zone for flash flooding later Friday into Saturday.  

It looks like the heat might briefly return next Monday and perhaps Tuesday, but it won't be as bad as it was this week. I doubt we'll see more records broken. But it could get up to 90 degrees again next Monday. 

 

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