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Heat Wave - June 20-23


CoastalWx

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So I was just looking at our chances for a 100 F reading this coming Wednesday and Thursday. And there is actually a chance there. Using the Richardson Number to determine our mixing, it looks as if we will be mixing up to 850 mb on Wednesday and Thursday. Our 850 mb temperatures are forecasted to be either 19 or 20 C. Doing out the math and calculations assuming a good mix down from 850 mb and a lapse rate of 3.5/1000 ft. Our surface temperature will be 99.9 F. Therefore, it may actually be possible for someone to touch the century mark.

he he, or you could just plot it on the blank skew-t diagram.

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2 day flash heat... Enesmbles are slower with cfropa on Friday so enters the wild card for that day. The 00z oper. Euro did appear to be lowering heights amid the eastern ridge perhaps too quickly when usually these ridge nodes tend to resist, particularly when there is 500mb SW flow S of the main band of the westerlies. The GFS is also got a long standing bias to be too progressive at any given time.

Then I don't see a deep trough replacing this like. In fact, big heat will be lingering not too far S, and is back-built westward across the conus off a fairly persistent Sonoran drain. At any time should the westerly based NAO permit, the westerlies could be yanked N, east of ~ 100 W and that heat would bulge very quickly NE. Until that happens, the heat this week looks to recess to normalcy for awhile, and then we'll wait and see.

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And BDL 80F min... it has happened once July 31, 1917. A good ol 80/97 day. Keep in mind that was downtown though in Hartford... it's never happened at the Airport.

BDL came close a few years back, but no cigar...

97/78 on August 3rd, 2006.

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82 in TOL with lapse rates?

Wouldn't it be cool to take a 20 mile by 20 mile by 3 mile tall block of that air mass + Kevin, and have it instantly appear in the middle of the Antartic vortex.

It would be a real interesting experiment to see not only what happened, but if Kevin survived it enough to report what's going on -

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Wouldn't it be cool to take a 20 mile by 20 mile by 3 mile tall block of that air mass + Kevin, and have it instantly appear in the middle of the Antartic vortex.

It would be a real interesting experiment to see not only what happened, but if Kevin survived it enough to report what's going on -

His thermometer would still be too cold.

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I'm still unsure how higher dews work out with 270 wind directions. Certainly 70+ would be difficult.

Tend to agree here... but synoptic arguments aside, typically our bigger T numbers can't come along with DPs over 70 because we don't have the insolation power. That's a Georgia meadow day, not in New England unless your out on a tarmac. It's been 97/74 a few times, of course, but its rare to get that combination here. Far more likely to get either an 87/74, or a 98/62.

That said, when the west wind is active...and our hottest days even have some n component 280 or 295, we go katabatic too much for 74DP. We actually get a lee-side dry-line/heat trough of sorts, and then the two advect seaward.

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