SPC MD 220

MD 0220 CONCERNING BLIZZARD FOR PORTIONS OF THE TX PANHANDLE…ERN OK PANHANDLE…WRN INTO N-CNTRL OK….S-CNTRL KS


MESOSCALE DISCUSSION 0220
NWS STORM PREDICTION CENTER NORMAN OK
1054 AM CST MON FEB 25 2013

AREAS AFFECTED...PORTIONS OF THE TX PANHANDLE...ERN OK
PANHANDLE...WRN INTO N-CNTRL OK....S-CNTRL KS

CONCERNING...BLIZZARD

VALID 251654Z - 252230Z

SUMMARY...HEAVY SNOW WILL CONTINUE/SHIFT E/NE ACROSS THE MCD AREA
THROUGH THE AFTERNOON. BLIZZARD CONDITIONS CURRENTLY ONGOING ACROSS
THE TX PANHANDLE ALSO WILL SHIFT E/NE INTO PORTIONS OF NW OK/S-CNTRL
KS BY LATE AFTERNOON. WIDESPREAD 1 INCH PER HOUR SNOWFALL RATES ARE
EXPECTED WITH LOCALLY 2 INCHES PER HOUR POSSIBLE.

DISCUSSION...HEAVY SNOW BAND CURRENTLY EXTENDING FROM JUST SOUTH OF
LUBBOCK NORTH-NORTHEAST ACROSS THE ERN TX PANHANDLE INTO NW OK WILL
CONTINUE TO PRODUCE SNOWFALL RATES OF 1-2 INCHES PER HOUR THE NEXT
FEW HOURS. A SFC LOW LOCATED BETWEEN CDS AND SPS AT 16Z WILL SLOWLY
SHIFT E/NE ALONG THE RED RIVER INTO S-CNTRL OK THIS AFTERNOON IN
TANDEM WITH UPPER LOW. AS THIS OCCURS...HEAVIEST SNOW WILL SHIFT
E/NE IN CONCERT WITH FAVORABLE DEFORMATION ZONE/850 MB FRONTOGENESIS
FROM THE ERN TX PANHANDLE INTO WRN OK/S-CNTRL KS. EVIDENCE OF THIS
EWD SHIFT WAS NOTED FROM NEAR END TOWARD CSM IN OK AS RAIN WAS
CHANGING TO SNOW OVER THE LAST HOUR. THIS TRANSITION WILL CONTINUE
EWD ALONG/TO THE WEST OF THE I-35/I-44 CORRIDOR IN OK BY LATE
AFTERNOON. STRONG 850 MB JET ON THE BACK SIDE OF LOW WILL OVERSPREAD
WRN INTO N-CNTRL OK/S-CNTRL KS BY LATE AFTERNOON AND BLIZZARD
CONDITIONS ARE EXPECTED.

..LEITMAN.. 02/25/2013

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...TSA...ICT...OUN...DDC...LUB...AMA...

LAT...LON   37799944 37310075 36910140 36220204 35280261 34570267
            33970249 33690223 33580185 33640120 33910020 34789873
            35089831 35589755 36799671 37219653 37629676 37899754
            37879845 37799944

via SPC Forecast Products http://www.spc.noaa.gov/products/md/md0220.html