SWOMCD
SPC MCD 020209
MAZ000-RIZ000-CTZ000-NYZ000-NJZ000-PAZ000-DEZ000-MDZ000-020615-
MESOSCALE DISCUSSION 0188
NWS STORM PREDICTION CENTER NORMAN OK
0809 PM CST SUN MAR 01 2009
AREAS AFFECTED...DELMARVA TO SRN NEW ENGLAND
CONCERNING...HEAVY SNOW
VALID 020209Z - 020615Z
HEAVY SNOW WILL DEVELOP ACROSS THE DELMARVA...NEWD INTO SRN NEW
ENGLAND THIS EVENING. SNOW RATES ON THE ORDER OF ONE TO POSSIBLY
TWO INCHES PER HOUR WILL BECOME COMMON...ESPECIALLY NEAR THE COAST.
WELL DEFINED WARM CONVEYOR BELT WITH AN EXPANSIVE ZONE OF
PRECIPITATION HAS EVOLVED AHEAD OF MAIN UPPER LOW CENTERED OVER THE
CAROLINAS. LEADING EDGE OF HEAVY SNOW IS SPREADING NORTH ACROSS THE
DELMARVA AND WILL SOON SPREAD INTO SRN NEW ENGLAND AS COLUMN
SATURATES. 00Z SOUNDINGS FROM OKX AND CHH SUGGEST PRECIPITATION
SHOULD REMAIN SNOW EXCEPT NEAR THE CAPE WHERE SNOW SHOULD SWITCH TO
RAIN BETWEEN 03-06Z AS WARM LAYER...850-750MB...SURGES NORTH ACROSS
SERN-MOST PORTIONS OF MA. BACK EDGE OF DEEPER ASCENT ASSOCIATED
WITH WARM CONVEYOR IS LIFTING NEWD AT ROUGHLY 25KT SUGGESTING A
BREAK IN HEAVIER SNOWFALL ACROSS ERN VA INTO MD BY 06Z. AFTER
MIDNIGHT...SECONDARY FORCING WILL LIFT NEWD INTO THIS REGION
ENHANCING SNOWFALL ALONG THE I-95 CORRIDOR AT THAT TIME.
..DARROW.. 03/02/2009
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...BOX...OKX...ALY...PHI...AKQ...CTP...LWX...
LAT...LON 39327735 40057551 41777332 42167172 41877062 40887206
38267626 39327735
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