MD 0690 CONCERNING TORNADO WATCH 174… FOR SERN NEB / NERN KS
MESOSCALE DISCUSSION 0690 NWS STORM PREDICTION CENTER NORMAN OK 1140 PM CDT SAT MAY 18 2013 AREAS AFFECTED...SERN NEB / NERN KS CONCERNING...TORNADO WATCH 174... VALID 190440Z - 190515Z THE SEVERE WEATHER THREAT FOR TORNADO WATCH 174 CONTINUES. SUMMARY...TORNADO WATCH 174 CAN BE CANCELLED PRIOR TO THE 0800 UTC EXPIRATION TIME AND COUNTIES CAN BE CLEARED FROM THE WATCH CONCURRENT WITH SQUALL LINE PASSAGE. DISCUSSION...RADAR MOSAIC SHOWS A FRACTURING QLCS FROM PARTS OF NERN KS INTO SERN NEB. THE REMAINING SEVERE THREAT IS LIKELY CONFINED ON THE IMMEDIATE ERN EDGE OF THE WATCH OVER POTTAWATOMIE COUNTY KS AND PERHAPS FARTHER NE IN MARSHALL COUNTY KS AND GAGE COUNTY NE FOR THE NEXT 15-30 MINUTES. OTHERWISE...THE WELL-DEVELOPED COMMA HEAD/NRN BOOK-END VORTEX WILL BECOME INCREASINGLY DISPLACED FROM SURFACE-BASED INFLOW...EFFECTIVELY WEAKENING IT OVER THE NEXT HOUR OR SO. ..SMITH.. 05/19/2013 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...OAX...TOP...ICT...GID... LAT...LON 38539709 41119737 41359705 39769616 38579633 38539709
via SPC Forecast Products http://www.spc.noaa.gov/products/md/md0690.html
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