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Displaying AFOS PIL: SWOMCD Product Timestamp: 2003-05-05 11:07 UTC
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482 ACUS11 KWNS 051107 SWOMCD SPC MCD 051107 GAZ000-NCZ000-TNZ000-ALZ000-051230- MESOSCALE DISCUSSION 0755 NWS STORM PREDICTION CENTER NORMAN OK 0607 AM CDT MON MAY 05 2003 AREAS AFFECTED...ERN TN / EXTREME SWRN NC / NERN AL / NRN GA... CONCERNING...TORNADO WATCH 245... VALID 051107Z - 051230Z SEVERE THREAT APPEARS TO BE LIMITED ACROSS ALL BUT FAR SRN PORTIONS OF WW. SEVERE THREAT MAY ALSO EXTEND SWD INTO NERN AL / NRN GA SOUTH OF CURRENT WATCH. A NEW WW WILL BE ISSUED SHORTLY FOR PARTS OF N GA. LATEST RADAR LOOP SHOWS WIDESPREAD RAIN / THUNDERSTORMS ACROSS WW...WITH MOST INTENSE STORMS ALONG THE TN / AL AND TN / GA BORDERS ATTM. WEAK NW-SE SURFACE BOUNDARY / WARM FRONT IS ANALYZED FROM MIDDLE TN SEWD ALONG THE GA / AL BORDER -- SEPARATING GULF AIRMASS FROM AIR ORIGINATING FROM WITHIN COLD-AIR DAM EAST OF APPALACHIANS. ALTHOUGH SHALLOW / STABLE BOUNDARY LAYER EXISTS E OF SURFACE BOUNDARY...LOW-LEVEL MOISTURE IS BEING ADVECTED NNEWD INTO THIS REGION ON SSWLY WINDS. AS A RESULT...SUFFICIENT ELEVATED INSTABILITY EXISTS TO ALLOW STORMS TO MOVE SEWD ACROSS NERN AL / NRN GA. WITH SURFACE WINDS SOUTH OF EAST TO THE E OF SURFACE BOUNDARY... LOW-LEVEL SHEAR SUGGESTS A LIMITED TORNADO THREAT IN A NARROW ZONE NEAR AND JUST E OF SURFACE BOUNDARY WHERE STABLE BOUNDARY LAYER IS MOST SHALLOW. HOWEVER...MAIN THREAT ACROSS THIS REGION SHOULD BE HAIL AND PERHAPS A LOCALLY DAMAGING GUST AS STORMS MOVE SEWD INTO PROGRESSIVELY-DEEP / STABLE BOUNDARY LAYER. ..GOSS.. 05/05/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...GSP...MRX...FFC...OHX...BMX...HUN... 36598510 36418426 34658352 33828483 34308639