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A really interesting statistic for the entire USA which exactly mirrors the data I share here from the philly burbs of Chester County. This below analysis measures not the typical metric of 90+ days but unusual hot periods of at least 4 days on average across the entire country where the average temperature reaches a level based on historical records that would be expected to only occur once every 10 years. Look how much hotter the entire nation was back in 1930's and 1940's compared to today! No matter how much we hear about how hot it is today we have still not reached that peak heating from the 1930 through 1942 period which matches the hottest period here in Chester County PA.

Yeah, toss that. Definitely some low 90s for a few days though.

I've had the same thing

A really interesting statistic for the entire USA which exactly mirrors the data I share here from Chester County. This below analysis measures not the typical metric of 90+ days but unusual hot periods of at least 4 days on average across the entire country where the average temperature reaches a level based on historical records that would be expected to only occur once every 10 years. Look how much hotter the entire nation was back in 1930's and 1940's compared to today! No matter how much we hear about how hot it is today we have still not reached that peak heating from the 1930 through 1942 period which matches the hottest period here in Chester County PA.

Models just about all lame/south. Maybe we get a slight bump north but at this range we need a sizeable shift. Probably a 0.2-0.4" deal, could just be a few showers that don't even wet underneath the trees.

Yup. 18z NAM is rather dry. A narrow stripe of 1" - 2" along I-66, while just about everyone else gets less than half an inch.

Worse than Joe Namath on MNF

18z NAM shifts qp south thru Sunday. WPC camps out front near Winchester thru Sat morning then crawling south .

2015-16 is exactly the kind of pattern id gamble with if forced to have a strong nino. I had largely filed that winter in the unforgettable camp, especially with the hangover from 2013-15, but after looking at it further, there were lots of winter storms in the region from late November to early April (sans December). While snowfall finished near to slightly below avg in far southern MI it jumped to above to well above avg snow in south-central MI. The caveat applies that no winters are identical, but the storminess is key, as opposed to drier ninos.

This site is struggling right now.

The 12z GFS for Juy 4th:

By the way my, site very slow for 2 days. Keep getting upload errors...

WB 18Z NBM; better than I expected.

Yea 98 am 75% humidity won’t be fun.

Like I said, a very small movement in the total mass structure of these featured layout cleans things up quite a bit. We're on the edge ... this, below, doesn't suggest heat can't get in here. But yeah, it's also close enough that some form or another of a SW calving ( which does happen as part of our climo - ) S out over top would present challenges to getting warm here. And agree on the MCS stuff given this config Too early to call either way. The continuity of the models isn't good enough at this range for having small room for adjusting.

Weird the NAMS moved way north at 12z

Would be cool to go from this unbelievable stretch of weather we’ve had lately to 100 on Monday. It’s going to be close!

Yes, I vividly recall one event in July 1980. N to S cell movement w/ svr, and it was a nasty mid evening event. That's what stuck in my memory as to, "look for for storms that move N to S in hot ridge patterns!" Summer of 1980 was among the biggest heatwaves and drought on record for the CONUS.

At this range, I am just looking at the wavelengths and axis of the ridge. That has not changed much in the last several days overall. The point being it appears New England will be on the fence for big heat. Tastes of heat but lots of caveats present w/ cloudiness, extent of convection, and weak fronts hanging up over or just S of the region. It's not a classic Bermuda High situation w/ solid low-level SW flow for the best heat in the NEUS. But in some ways, I think this will be better if one like tstms. We don't get ring of fire solid situations every year here. Just HHH for days on end, that's get kind of boring after a awhile for some. Very warm/humid w/ bouts of tstms I think many would enjoy better.

A good chunk of PA isn't far off from being as bad as us.

It's been awhile since we've seen one of those nocturnal strobers running through southern VT/NH into NE Mass. 1990s had a few. Then...rather mysteriously, they went away. or the frequency just dropped dramatically

Up to 87

I remember back in the 70’s and 80’s we were good for at least a few nights during the summer having an intense line move from the north move south east into E MA. Rarely see a storm from that direction at all here anymore

Lots of discussion concerning ring of fire pattern setting up with this heatwave coming through. Honestly feeling like we'll get missed north this time around