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Historic October NYC Snowstorm Obs/Disco II


Sickman

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All snow now on N winds.

Only about 1/2" of slush on the ground.

That 70 foot elevation advantage of yours rears its ugly head....(240 / 170)....;)

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One factor making it particularly difficult for LI...with water exposure and little elevation...is the lack of cold air to draw on...wind direction is fine...but it is 32 F at Albany and 32 F at Scranton (@ 980 feet a.s.l.)!

I believe Ray said it....the source region of the NW winds may be a big problem here. The 12/5/03 storm we had a nasty dry air mass over New England which the NE winds were tapping into and bringing the cool and dry air down. This time the problem is its early in the year and the areas that were dry earlier today where we could pull 28-30 degree air from are now only 32 or so.

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can you explain for those of us in a fog..

You can see the warm layers (above freezing) at 8,000 ft. and the lowest 1,000 ft. of the atmosphere. Ideally you would like the whole layer from cloud base to surface below freezing to have snow, although there are exceptions. Even if the warm layer near the surface were gone we would still have sleet because of the warm layer at 8,000 ft.

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You can see the warm layers (above freezing) at 8,000 ft. and the lowest 1,000 ft. of the atmosphere. Ideally you would like the whole layer from cloud base to surface below freezing to have snow, although there are exceptions. Even if the warm layer near the surface were gone we would still have sleet because of the warm layer at 8,000 ft.

Have you notified Upton yet about raising flood warnings?

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Since about 9:00 PM we have had snow slowly working in here...10 miles to my ESE, the 2m temp at Upton has been falling rather quickly over the last hour or so....

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not sure if i just saw lightning or a power flash/associated flash

Saw lighting a tad earlier, also unsure if it could have been a power flash. Over 7" here in Westchester . Lower temps , more wind, and tree limbs/branches still snapping. Lovin it.

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