Thursday, February 25, 2010

Mid-Evening Update on Storm


9:30 PM Eastern Update

Our storm continues across the Northeast. Satellite loops show how dynamic and powerful this storm actually is becoming. You can see the orange section in that loop surging north and due west. This is dry air, or the dry slot I spoke about earlier. A big storm often has a strong dry slot. This storm will have that. Right now, just extrapolating things out, the center of the storm will move from Cape Cod now to Connecticut by about Midnight-1 AM. The storm will loop southwest over NYC by tomorrow morning and probably just sit there and spin and steadily weaken during the day Friday. The heavy snow axis tonight will shift south and west across NJ through Northeast PA and back through Western NY. Dry air will likely surge through most of New England and possibly into the Adirondacks overnight. As that storm sits over New York and starts to weaken, the snow bands will essentially stay in place where they are, but weaken. Some pockets of heavier snow will persist at times through mid-morning tomorrow, but they'll become far less frequent than they will be overnight tonight. Once the sun comes up tomorrow, steady accumulating snow will probably be over with in most places, except the hills/mountains of PA and parts of Western NY and Ohio. As the storm pulls away over the weekend it may bring a brief period of snow to parts of New England. But the worst of this storm (at least falling from the sky) ends by about 9 AM Friday.

Wind is going to steadily increase tonight, with the strongest winds likely occurring further south and west away from the storm. Best chance for blizzard conditions will be in interior PA, where drier snow and strong winds will combine best. Localized blizzard conditions are possible anywhere. The snow has been wet enough that true blizzard conditions will likely not be widespread. However, trees and power lines weighted down by the snow stand the risk of tumbling in spots.

Additional snowfall accumulation will continue in NJ and PA tonight. The totals will vary widely. Wherever banding sets up, they will be heavy. Where banding does not, they will be more sporadic. Best chance for banding right now is drifting south from Central NJ and setting up in NW NJ and NE PA, as well as parts of the Southern Tier in NY.

Totals So Far

Very impressive numbers starting to come out from this storm. Here's a sample:

Pocono Summit, PA: 19.0"
Woodridge, NY: 18.4"
Harriman, NY: 17.2"
Highland Lakes, NJ: 17.0"
Kiamesha Lake, NY: 16.0"
Stamford, NY: 16.0"
Edmeston, NY: 14.0"
Newark, NY: 14.0"
Goshen, NY: 13.6"
Wantage, NJ: 13.5"
Prattsville, NY: 13.0"
North Blenheim, NY: 13.0"
German, NY: 13.0"
Ringwood, NJ: 12.8"
Tuxedo, NY: 12.3"
Dingman's Ferry, PA: 12.0"
West Milford, NJ: 12.0"
Albrightsville, PA: 12.0"
Endicott, NY: 11.4"
Whitesboro, NY: 11.2"
Mahwah, NJ: 11.0"
Syracuse, NY: 9.6"
Scranton, PA: 9.5"
Knox, NY: 9.3"
Marcella, NJ: 9.2"
Binghamton, NY: 8.5"
Yonkers, NY: 7.0"
Central Park: 5.5"
Newark Airport: 4.0"
Rochester, NY: 1.9"
LaGuardia Airport: 1.7"
JFK Airport: 1.1"
Albany: 0.1"

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