Mesoscale discussion from the National Weather Service
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.
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