566
ACUS11 KWNS 082324
SWOMCD
SPC MCD 082324
NYZ000-CTZ000-NJZ000-PAZ000-DEZ000-MDZ000-090330-
MESOSCALE DISCUSSION 0078
NWS STORM PREDICTION CENTER NORMAN OK
0524 PM CST SAT FEB 08 2025
AREAS AFFECTED...FAR NORTHERN PORTIONS OF THE MID-ATLANTIC AND FAR
SOUTHERN PORTIONS OF NEW ENGLAND
CONCERNING...WINTER MIXED PRECIPITATION
VALID 082324Z - 090330Z
SUMMARY...SNOW SHOULD OVERSPREAD THE REGION IN THE NEXT FEW HOURS.
WITH TIME, THE SNOW SHOULD TRANSITION TO SLEET AND EVEN FREEZING
RAIN BEFORE ENDING LATER THIS EVENING/OVERNIGHT.
DISCUSSION...AN AREA OF MIXED WINTER PRECIPITATION CONTINUES ACROSS
WESTERN AND CENTRAL PENNSYLVANIA THIS EVENING. THIS PRECIPITATION
AREA DEVELOPED/IS BEING MAINTAINED ON THE NOSE OF STRONG LOW-LEVEL
WARM-AIR ADVECTION ACROSS A DEEP LAYER. OVER THE NEXT FEW HOURS THIS
WARM-AIR ADVECTION AND ASSOCIATED ISENTROPIC ASCENT WILL OVERSPREAD
EASTERN PENNSYLVANIA AND MUCH OF NEW JERSEY. SURFACE TEMPERATURES IN
THE UPPER-20FS AND LOW-30FS, COUPLED WITH DEWPOINT TEMPERATURES IN
THE UPPER-TEENS AND LOW-20FS, YIELD WET-BULB TEMPERATURES BELOW 32F.
THERMAL PROFILES ACROSS THE REGION WILL INITIALLY SUPPORT ALL SNOW.
HOWEVER, AS THE WARM-AIR ADVECTION WARMS THE LOW-LEVELS, THE MAXIMUM
TEMPERATURE IN THE COLUMN SHOULD INCREASE ABOVE 32F YIELDING SLEET
AND POTENTIALLY EVENTUALLY FREEZING RAIN BEFORE PRECIPITATION ENDS
FROM SOUTHWEST TO NORTHEAST.
..MARSH.. 02/08/2025
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...OKX...PHI...BGM...CTP...LWX...
LAT...LON 39177553 39527647 40417671 41247631 41547565 41477463
41017363 39987304 39137378 38907485 39177553
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