National Weather Service Raw Text Product
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Displaying AFOS PIL: SWODY1 Product Timestamp: 2002-04-28 01:09 UTC
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000 ACUS01 KWNS 280109 SWODY1 SPC AC 280104 STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS. VALID 280100Z - 281200Z THERE IS A MDT RISK OF SVR TSTMS OVERNIGHT FOR EXTREME SOUTHEAST IOWA...EASTERN MISSOURI...EXTREME NORTHEAST ARKANSAS...WEST TENNESSEE...ALL BUT EXTREME NORTHERN ILLLINOIS...MOST OF INDIANA...WESTERN AND CENTRAL KENTUCKY...AND WESTERN OHIO TO THE RIGHT OF A LINE FROM 45 SE MKL 15 WSW MEM 40 WNW MEM 15 SE POF 50 NE UNO 10 E SGF 20 SSW IRK 35 SW OTM 20 N MLI 20 SSE CGX 10 SW FDY 35 E DAY 10 SE LEX 45 SE MKL. THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 10 W ERI 20 NW MGW 15 ENE 5I3 30 SE CSV 45 NW BHM 30 SSW GLH 15 SE ELD 30 SSE PGO 30 NNW SGF 25 SW IRK 55 WNW LWD 40 SSW FOD 30 W LNR 25 NNE MKE 45 NNE MTC. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 50 ESE TPH 25 S NFL 80 S BNO 50 SSE BOI 35 SSE LND 25 SSW FCL 40 E GUC 60 SE U24 50 ESE TPH. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 25 ESE SAV 40 E 0A8 40 SSW ELD 30 SSW PGO 20 WSW FYV 40 SSE P35 40 N FNB 40 N OMA 10 NNW RST 20 SSW OSC ...CONT... 25 WNW BUF 30 SE ELM 20 SSW JFK. ---SIGNIFICANT SEVERE WEATHER EPISODE APPEARS TO BE UNDERWAY AND SHOULD CONTINUE MUCH OF THE NIGHT--- ...MIDDLE MISSISSIPPI/LOWER OHIO VALLEY AREA... ISOLATED SUPERCELLS WITH POTENTIAL FOR TORNADOES WILL CONTINUE PUSHING FROM MISSOURI INTO ILLINOIS THIS EVENING. COMBINATION OF MLCAPE OF 1000-1500 J/KG...0-6 KM SHEAR OF 70 KNOTS...AND 0-1 KM SHEAR OF 30-50 KNOTS INDICATE POSSIBILITY OF STRONG AND PERHAPS LONG TRACK TORNADOES. HOWEVER...ISOLATED NATURE OF SUPERCELLS AT THIS TIME PRECLUDES UPGRADE TO HIGH RISK. 18Z ETA CONTINUES TREND OF EARLIER MODELS WITH AGGRESSIVE DESTABILIZATION UP THE OHIO VALLEY DESPITE UNFAVORABLE TIME OF DAY. HOWEVER...BOUNDARY LAYER CONTINUES TO DESTABILIZE DUE TO ADVECTION UP THE MISSISSIPPI AND LOWER OHIO RIVER VALLEYS...AND 60 KNOT 850 MB JET SHOULD CONTINUE TO ADVECT MOIST AIR TOWARD SOUTHERN INDIANA/OHIO BY LATE TONIGHT. THUS...EXPECT AXIS FROM MEMPHIS AREA TO NEAR CINCINNATI TO SHOW INCREASE IN COVERAGE/INTENSITY OF STRONG/SEVERE THUNDERSTORMS DURING THE EVENING HOURS. 21Z RUC AND TO LESSER EXTEND 18Z AVN/ETA SHOW SEPARATE AREA OF STRONG UVVS/CONVECTIVE DEVELOPMENT. POSSIBILITY FOR BOTH ISOLATED TORNADIC STORMS AND BOW ECHOES WITH WIND DAMAGE EXISTS GIVEN DEGREE OF VERTICAL WIND SHEAR AND STRONG DYNAMIC FORCING. ..CRAVEN.. 04/28/02
896 ACUS01 KWNS 280109 SWODY1 SPC AC 280104 STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS. VALID 280100Z - 281200Z THERE IS A MDT RISK OF SVR TSTMS OVERNIGHT FOR EXTREME SOUTHEAST IOWA...EASTERN MISSOURI...EXTREME NORTHEAST ARKANSAS...WEST TENNESSEE...ALL BUT EXTREME NORTHERN ILLLINOIS...MOST OF INDIANA...WESTERN AND CENTRAL KENTUCKY...AND WESTERN OHIO TO THE RIGHT OF A LINE FROM 45 SE MKL 15 WSW MEM 40 WNW MEM 15 SE POF 50 NE UNO 10 E SGF 20 SSW IRK 35 SW OTM 20 N MLI 20 SSE CGX 10 SW FDY 35 E DAY 10 SE LEX 45 SE MKL. THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM 10 W ERI 20 NW MGW 15 ENE 5I3 30 SE CSV 45 NW BHM 30 SSW GLH 15 SE ELD 30 SSE PGO 30 NNW SGF 25 SW IRK 55 WNW LWD 40 SSW FOD 30 W LNR 25 NNE MKE 45 NNE MTC. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 50 ESE TPH 25 S NFL 80 S BNO 50 SSE BOI 35 SSE LND 25 SSW FCL 40 E GUC 60 SE U24 50 ESE TPH. GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 25 ESE SAV 40 E 0A8 40 SSW ELD 30 SSW PGO 20 WSW FYV 40 SSE P35 40 N FNB 40 N OMA 10 NNW RST 20 SSW OSC ...CONT... 25 WNW BUF 30 SE ELM 20 SSW JFK. ---SIGNIFICANT SEVERE WEATHER EPISODE APPEARS TO BE UNDERWAY AND SHOULD CONTINUE MUCH OF THE NIGHT--- ...MIDDLE MISSISSIPPI/LOWER OHIO VALLEY AREA... ISOLATED SUPERCELLS WITH POTENTIAL FOR TORNADOES WILL CONTINUE PUSHING FROM MISSOURI INTO ILLINOIS THIS EVENING. COMBINATION OF MLCAPE OF 1000-1500 J/KG...0-6 KM SHEAR OF 70 KNOTS...AND 0-1 KM SHEAR OF 30-50 KNOTS INDICATE POSSIBILITY OF STRONG AND PERHAPS LONG TRACK TORNADOES. HOWEVER...ISOLATED NATURE OF SUPERCELLS AT THIS TIME PRECLUDES UPGRADE TO HIGH RISK. 18Z ETA CONTINUES TREND OF EARLIER MODELS WITH AGGRESSIVE DESTABILIZATION UP THE OHIO VALLEY DESPITE UNFAVORABLE TIME OF DAY. HOWEVER...BOUNDARY LAYER CONTINUES TO DESTABILIZE DUE TO ADVECTION UP THE MISSISSIPPI AND LOWER OHIO RIVER VALLEYS...AND 60 KNOT 850 MB JET SHOULD CONTINUE TO ADVECT MOIST AIR TOWARD SOUTHERN INDIANA/OHIO BY LATE TONIGHT. THUS...EXPECT AXIS FROM MEMPHIS AREA TO NEAR CINCINNATI TO SHOW INCREASE IN COVERAGE/INTENSITY OF STRONG/SEVERE THUNDERSTORMS DURING THE EVENING HOURS. 21Z RUC AND TO LESSER EXTEND 18Z AVN/ETA SHOW SEPARATE AREA OF STRONG UVVS/CONVECTIVE DEVELOPMENT. POSSIBILITY FOR BOTH ISOLATED TORNADIC STORMS AND BOW ECHOES WITH WIND DAMAGE EXISTS GIVEN DEGREE OF VERTICAL WIND SHEAR AND STRONG DYNAMIC FORCING. ..CRAVEN.. 04/28/02