Sep 30, 2005 0100 UTC Day 1 Convective Outlook Updated: Fri Sep 30 00:50:13 UTC 2005
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SPC AC 300047 DAY 1 CONVECTIVE OUTLOOK NWS STORM PREDICTION CENTER NORMAN OK 0747 PM CDT THU SEP 29 2005 VALID 300100Z - 301200Z GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM LBB ALM 55 NE SAD GUP 55 WSW MTJ ASE COS PUB TAD 35 NNE CAO EHA 60 SW GAG LBB. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 65 SSE DRT COT VCT HOU LCH LFT GPT MCN 45 SSW CLT 50 ENE ECG. ...NO SVR TSTM AREAS FORECAST... ...SYNOPSIS... NRN STREAM PATTERN IS IN TRANSITION TO ZONAL ORIENTATION AS MAJOR SHORTWAVE TROUGH LIFTS OUT OF NEW ENGLAND...AND ACROSS CANADIAN MARITIME. FARTHER SW...MID-UPPER LEVEL LOW THAT HAD BEEN CUT-OFF AND QUASISTATIONARY ABOUT THE 4-CORNERS REGION FOR A COUPLE DAYS...HAS BEGUN TO EJECT EWD BASED ON LATEST SATELLITE ANIMATIONS. CENTER OF THIS CYCLONE SHOULD REACH RATON MESA AREA BY 30/12Z. NERN CONUS SEGMENT OF SFC COLD FRONT...AND ACCOMPANYING LINE OF FORCED-ASCENT CONVECTION WITH LITTLE OR NO CG LIGHTNING...HAS MOVED E OF DOWNEAST MAINE AND NO LONGER IS A FACTOR IN THIS OUTLOOK. FARTHER SW...FRONT IS MOVING SEWD ACROSS CAROLINAS/GA...ACCOMPANIED AND PRECEDED BY ISOLATED TO WIDELY SCATTERED NON-SVR TSTMS. FRONT IS MOVING OFF LOWER-MIDDLE TX COAST AND SHOULD BECOME QUASISTATIONARY TONIGHT OVER DEEP S TX...AS WA REGIME COMMENCES FARTHER NW IN ASSOCIATION WITH EJECTING SRN ROCKIES SHORTWAVE TROUGH. ...NM... WIDELY SCATTERED TSTMS ARE EXPECTED TO MOVE EWD AND NEWD ACROSS MUCH OF NM EXCEPT FOR EXTREME SRN PORTIONS...WITH A FEW HIGH-BASED TSTMS MOVING INTO SOUTH PLAINS OF W TX. MIDLEVEL SPEED MAX AND LOW LEVEL SLYS/ELYS COMBINE TO YIELD WIND PROFILE FAVORABLE FOR SUPERCELLS OVER PARTS OF CENTRAL/ERN NM PER VWP/PROFILER DATA AND RUC SOUNDINGS. HOWEVER THERMODYNAMIC PARAMETERS NEAR SFC HAVE PEAKED AND WILL DIMINISH THROUGH REMAINDER PERIOD...A TREND DRIVEN MAINLY BY LOSS OF SFC DIABATIC HEATING AND LOCALLY BY EFFECTS OF CONVECTIVE OUTFLOWS. THEREFORE ANY REMAINING SEVERE HAIL/WIND POTENTIAL APPEARS MARGINAL AND BRIEF. ..EDWARDS.. 09/30/2005 ...NOTICE... THE STATION RELATIVE POINTS IN THIS PRODUCT ARE NOW AVAILABLE SEPARATELY UNDER THE WMO HEADINGS WUUS01 PTSDY1... WUUS02 PTSDY2...WUUS03 PTSDY3. THE INCLUSION OF POINTS IN THIS DISCUSSION WILL BE DISCONTINUED AFTER THE 2005 CONVECTIVE SEASON. A PUBLIC NOTIFICATION STATEMENT (PNS) WILL PROVIDE DETAILS ON THE TRANSITION. CLICK TO GET WUUS01 PTSDY1 PRODUCT NOTE: THE NEXT DAY 1 OUTLOOK IS SCHEDULED BY 0600Z |