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2/13/2014 Major Coastal Storm Observations


Rtd208

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Out in Shirley long island temp shot up 7 degrees 26-33 in 90 minutes. Davis weather station set up. Anyone else spike up like that. Bent about that... geez

Models had that temp spike honestly-temps on the NAM spike up to 32 near NYC by dawn. That's why I'm worried about the wet snow on trees/power lines along the coast and added strong NE wind. It shouldn't be a dry snow when it really starts coming down.

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 MESOSCALE DISCUSSION 0098   NWS STORM PREDICTION CENTER NORMAN OK   1117 PM CST WED FEB 12 2014   AREAS AFFECTED...NRN VA TO THE NYC METRO AREA   CONCERNING...HEAVY SNOW    VALID 130517Z - 131015Z   SUMMARY...A SWATH OF MODERATE TO HEAVY SNOW WILL DEVELOP NEWD ACROSS   PARTS OF THE NORTHEAST MEGALOPOLIS FROM WASHINGTON DC TO NEW YORK   CITY THROUGH 12Z. SNOWFALL RATES OF 1 TO 2 IN/HR WILL BE LIKELY.   DISCUSSION...SURFACE OBSERVATIONS AND LOCAL STORM REPORTS CONFIRM   MULTIPLE HOURS OF MODERATE TO HEAVY SNOW HAVE BEEN CENTERED ACROSS   SWRN INTO CNTRL VA AND FAR SRN WV. THIS CORRIDOR WILL SHIFT NEWD   THIS MORNING AS AN ARC OF INTENSE LOW-LEVEL WAA IS SHUNTED   DOWNSTREAM OF CYCLOGENESIS OCCURRING NEAR THE ERN NC COAST. 21Z SREF   GUIDANCE ALONG WITH THE 00Z NAM AND WRF-NSSL/NMM SUGGEST THE MOST   PERSISTENT BAND OF HEAVY SNOW WILL LARGELY OVERSPREAD THE   MEGALOPOLIS THROUGH DAYBREAK. THIS SHOULD GENERALLY LIE JUST NW OF   THE TRANSITIONAL CORRIDOR TO RAIN ALONG THE MID-ATLANTIC COASTAL   PLAIN. MODERATE TO HEAVY SNOW WILL FIRST INCLUDE THE   WASHINGTON/BALTIMORE METRO AREAS SHORTLY AFTER 06Z. FARTHER   NE...ADVECTION AND LIFT WILL EVENTUALLY RESULT IN FULL SATURATION OF   A VERY DRY 850-500 MB LAYER SAMPLED BY THE 00Z OKX/CHH RAOBS. WHILE   LIGHT SNOW SHOULD BE ONGOING FOR SEVERAL HOURS...HEAVIER SNOW RATES   WILL EVENTUALLY DEVELOP INTO THE PHILADELPHIA AND NEW YORK CITY   METRO AREAS BETWEEN 09-12Z.
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