The Weather Pages

The Plot Thickens: Computer Models Finally Agree on Coastal Snowstorm for NYC-Metro and East

Posted in Forecast by fredsin on March 1, 2009
From the National Weather Service out of Upton, NY, Saturday night, 7:23 (edited):

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW YORK NY
723 PM EST SAT FEB 28 2009

MODEL QPF GENERALLY AROUND AN INCH FROM NYC AND POINTS EAST...WITH
HALF AN INCH UP ACROSS NORTHERN PORTIONS OF THE LOWER HUDSON
VALLEY. THIS RESULTS IN SNOWFALL AMOUNTS OF 8 TO 12 INCHES WITH THE
HIGHEST AMOUNTS ACROSS EASTERN SECTIONS AT THIS TIME.

THE GLOBAL MODEL ENSEMBLE AS WELL AS THE 18Z NAM WRF...ARE IN REMARKABLY GOOD AGREEMENT.
SHOULD THIS TREND CONTINUE WITH THE 00Z MODEL RUN...WARNINGS WOULD
BE ISSUED OVERNIGHT.

SNOW TAPERS OFF IN THE AFT ON MON WITH STRONG COLD ADVECTION ON
THE BACKSIDE AND WIND GUSTS UP TO 40 MPH. THE TIGHT PRESSURE
GRADIENT ON THE NW FLANK OF THE STORM COULD PRODUCE BLIZZARD
CONDITION AT TIMES. A BLIZZARD WARNING IS NOT OUT OF THE QUESTION.

HIGHS BOTH MON INTO TUE WILL HAVE A DIFFICULT TIME BREAKING
FREEZING AS ANOMALOUSLY COLD AIRMASS IS DRAWN SOUTHWARD BEHIND THE
STORM. OVERNIGHT LOWS WILL BE IN THE TEENS.
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4 Responses

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  1. Kathy said, on March 1, 2009 at 11:00 pm

    WOWEE, WOW, WOW

  2. fredsin said, on March 2, 2009 at 12:28 am

    Dare I say that the latest NWS discussion hints at some areas getting 15 – 20 inches? They aren’t putting this in their forecast because its a low probability. Needless to say, their current forecast of 8 -12 is hard to believe, b/c that amount of snow is crushing for NYC. For me, I’ll believe it when I see it….and then probably won’t believe what I’m seeing. As for 15 -20 inches…I’d be hallucinating. Regardless, this is truly going to be a “wake up and look out the window” storm. When you wake up, it will be nearly over and what you see is what you get!

  3. Kathy said, on March 2, 2009 at 7:13 pm

    OK, so how much did you get? It must be a beautiful sight in Central Park. Today was the first day in 5 years that there was a no school day for kids in NYC. They must be very happy – finally, a snow day

  4. fredsin said, on March 3, 2009 at 12:16 am

    Officially we got around 8 inches in NYC. Not a blockbuster snowstorm for the city, but clearly other places to the east got more. And yes, as I was walking to the subway this morning on 109th and Central Park West, I got a very “19th century” view of the Park — long, gray, spindly branches covered in white.


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