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general march discussion


earthlight

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12z euro soundings for LGA.

850's are fine the entire event. Surface starts at 38 and drops to 33.

.43" of QPF falls. I would guess about .10"-.20" of that is a rain/slop mix and then wet snow.

Verbatim, probably 1"-2" of snow on grassy surfaces.

HPN is very similar, except surface starts at 36 and drops to 33.

JFK is also almost exact copy of HPN.

850's for everyone start at -3 and drop to -6.5

Thicknesses for everyone are 542 and drop to 533.

The bad thing is that the real precip doesnt get in here until Wednesday 12z and falls thru Thursday 6z. Most of the precip falls during day and thats why surface temps are struggling to get colder.

925 temps are below zero from beginning.

So it appears its just a shallow layer of 33-38 right at the surface.

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DC, which was very close to all snow and 8"+ on last nights run, is now torched at 850 and surface and is 95% rain.

Shows that everything bumped north.

which was expected by just about everyone - these folks that are saying that snow can't accumulate during the daytime are mistaken - if the temp is 33 or 34 and there is any type of moderate to heavier intensity snow will accumulate

If anyone wants proof of temps in the mid 30's and snow being able to accumulate - March 28 -29 , 1984 - 3 inches at newark temps in the mid 30's

http://www.wunderground.com/history/airport/KEWR/1984/3/29/DailyHistory.html

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