449
ACUS11 KWNS 131845
SWOMCD
SPC MCD 131845
NYZ000-PAZ000-132045-
MESOSCALE DISCUSSION 0035
NWS STORM PREDICTION CENTER NORMAN OK
1245 PM CST MON JAN 13 2025
AREAS AFFECTED...SOUTH-CENTRAL NEW YORK INTO FAR NORTHERN
PENNSYLVANIA
CONCERNING...SNOW SQUALL
VALID 131845Z - 132045Z
SUMMARY...SNOW SQUALL ACTIVITY WILL BE POSSIBLE THROUGH THE
AFTERNOON DIMINISHING THROUGH THE EVENING.
DISCUSSION...RADAR ACROSS SOUTHERN NEW YORK STATE THIS AFTERNOON
SHOWS SEVERAL SNOW SHOWERS MOVING EASTWARD ALONG A SURFACE COLD
FRONT. A FEW OF THESE SHOWERS HAVE HAD BRIEF INCREASE IN INTENSITY,
WITH VISIBILITY REDUCTIONS TO 1/2 MILE REPORTED. THE THERMAL
ENVIRONMENT IS CHARACTERIZED BY SOMEWHAT POOR LOW-LEVEL LAPSE RATES,
OWING TO CLOUD COVER ACROSS THE REGION. HOWEVER, SURFACE OBJECTIVE
ANALYSIS DOES INDICATED SOME 2-6 AGL LAPSE RATES AROUND 7 C/KM RIGHT
ALONG THE FRONT. THE OCCASIONAL SNOW SQUALL WILL BE POSSIBLE, WITH
SUDDEN VISIBILITY REDUCTIONS TO LESS THAN 1/4 MILES AND GUSTY WINDS.
THIS THREAT WILL SUBSIDE WITH PASSAGE OF THE FRONT, AND AS SUNSET
APPROACHES WITH LOSS OF DAYTIME HEATING.
..THORNTON.. 01/13/2025
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...ALY...BGM...
LAT...LON 41797556 41917594 42007578 42267538 42667507 43117482
43217453 43177422 42897405 42717413 42367439 42097457
41877496 41797556
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