464
ACUS11 KWNS 191549
SWOMCD
SPC MCD 191548
WIZ000-MNZ000-191845-
MESOSCALE DISCUSSION 2273
NWS STORM PREDICTION CENTER NORMAN OK
0948 AM CST THU DEC 19 2024
AREAS AFFECTED...FAR SOUTHEASTERN MINNESOTA INTO WEST-CENTRAL
WISCONSIN
CONCERNING...HEAVY SNOW
VALID 191548Z - 191845Z
SUMMARY...AREAS OF HEAVY SNOW WITH RATES AROUND 1" PER HOUR TO
CONTINUE THROUGH THE LATE MORNING.
DISCUSSION...BANDS OF MODERATE TO HEAVY SNOW ARE ONGOING ACROSS
PORTIONS OF SOUTHEASTERN MN INTO WEST-CENTRAL WI. THE HEAVIEST SNOW
APPEARS TO BE FOCUSED NEAR THE MN/WI/IA BORDER WHERE UPPER-LEVEL
DIVERGENCE FROM A MID-LEVEL SHORTWAVE IS LEADING TO GREATER FORCING
AMID DEEP MOIST CONVERGENCE. HREF GUIDANCE INDICATES THAT RATES WILL
COME DOWN INTO THE AFTERNOON AS UPPER-LEVEL SUPPORT SHIFTS
SOUTHWARD, BEFORE THE BACKSIDE OF THE LOW SHIFTS ACROSS THE REGION
LATER IN THE AFTERNOON/EVENING WHEN RATES MAY INCREASE AGAIN.
..THORNTON.. 12/19/2024
..PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT
ATTN...WFO...MKX...ARX...MPX...
LAT...LON 44769223 44589279 44049233 43749159 43529082 43379004
43649010 44049035 44439087 44769223
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