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PIL:
Start UTC Date @0z:
End UTC Date @0z:
494 
ACUS01 KWNS 290125
SWODY1
SPC AC 290113

STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK 
DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.

VALID 290100Z - 291200Z

THERE IS A MDT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
30 ESE ECG 45 ENE RWI 45 NNE RWI 30 NNW ORF 30 WNW SBY 35 SE DOV.

THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
25 SSE OAJ 40 SW AGS 40 E 0A8 20 S GLH 15 SSW LIT 60 W MEM
40 SE BNA 15 W TYS 25 S EKN 35 NNE BWI 10 NE PHL 20 SE NEL.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 SE CHS 20 ESE LFK
45 ESE AUS 10 SE HDO 15 NW JCT 40 SSW ADM 35 NNE MEM 20 E BNA
35 NNW TYS 30 NE CRW 30 NNW PSB 45 E ART 35 NW RUT 20 SW PWM.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 35 W INL 35 WNW BRD
50 ENE ANW 15 S VTN 55 SSW PHP 60 NNW PHP 40 SSE P24 80 NE MOT.

...SYNOPSIS...
STRONG MID-LEVEL SHORTWAVE TROUGH WILL CONTINUE MOVING EWD ACROSS
THE NERN U.S. INTO NEW ENGLAND THROUGH THE END OF THIS PERIOD.  AT
THE SURFACE...LOW NOW ANALYZED IN W CENTRAL NY IS FORECAST TO BE
OFF CAPE COD AT THE END OF THE PERIOD.  COLD FRONT...NOW EXTENDING
SWD FROM THE LOW ACROSS ERN PA AND THEN SWWD ALONG THE
APPALACHIANS...IS FORECAST TO MOVE OFF THE MID-ATLANTIC COAST
BETWEEN 29/06 AND 29/12Z.  THE TRAILING SRN PORTION OF THE FRONT
WHICH NOW EXTENDS WSWWD ACROSS THE TN AND LOWER MS VALLEYS INTO N
CENTRAL TX WILL MOVE SLOWLY SWD / SEWD...AND IS EXPECTED TO LIE
ROUGHLY W-E ACROSS THE GULF COAST STATES INTO CENTRAL TX BY THE END
OF THE PERIOD.  

...MID-ATLANTIC REGION SWWD INTO THE SOUTHEAST...
STRONGEST STORMS / SUPERCELLS NOW MOVING OFF THE ATLANTIC COAST
ACROSS MD / DE / VA AHEAD OF COLD FRONT...WITH A VERY SMALL BUT
ENHANCED THREAT AREA FOR TORNADOES...LARGE HAIL...AND DAMAGING
WINDS FOR THE NEXT HOUR OR SO.  ALTHOUGH THE FRONT WILL MOVE OFF
THE NJ / DE / VA COAST BETWEEN NOW AND 06Z...AIRMASS FURTHER SWWD
AHEAD OF THE BOUNDARY FROM THE CAROLINAS INTO GA / AL REMAINS
MODERATELY UNSTABLE WITH DEWPOINTS IN THE 60S TO NEAR 70 AND
SURFACE-BASED CAPE GENERALLY 1000 TO 2000 J/KG.  

FURTHER SWWD...STRONGEST STORMS ONGOING ATTM REMAIN ALONG THE TN /
AL BORDER AND INTO NRN GA.  THESE STORMS WILL LIKELY PERSIST FOR
SEVERAL HOURS WHILE MOVING SEWD AHEAD OF FRONT.  MEANWHILE...SOME
ADDITIONAL DEVELOPMENT IS POSSIBLE ALONG / AHEAD OF FRONT AS
BOUNDARY MOVES ACROSS THE APPALACHIANS INTO THE CAROLINAS...
ALTHOUGH STRONGEST UPPER SUPPORT WILL REMAIN N OF THE REGION AND
MOVE INTO THE ATLANTIC.  

ALTHOUGH SURFACE FLOW WILL BECOME INCREASINGLY SWLY AHEAD OF
FRONT...DEEP-LAYER FLOW WILL REMAIN STRONG THROUGH THE NIGHT WITH
40 TO 60 KT WLY FLOW AT 700 MB AND 50 TO 70 KTS AT MID-LEVELS.  AS
A RESULT...ONGOING STORMS IN THE TN VALLEY AND ANY NEW DEVELOPMENT
AHEAD OF COLD FRONT EAST OF THE APPALACHIANS WILL LIKELY BECOME
SEVERE...WITH A THREAT FOR PRIMARILY LARGE HAIL AND DAMAGING
WINDS...AND PERHAPS A COUPLE OF TORNADOES.  

...LOWER MS VALLEY REGION INTO CENTRAL AND NERN TX... 
THUNDERSTORM OVER CENTRAL TX HAS WEAKENED OVER THE PAST HALF
HOUR...BUT ISOLATED DEVELOPMENT IS POSSIBLE INVOF SURFACE BOUNDARY
FROM CENTRAL AND NERN TX EWD INTO SRN AR / NRN LA / NRN MS. 
ALTHOUGH LOW-LEVEL FLOW IS WEAKER ACROSS THIS REGION...SUFFICIENT
FLOW ALOFT SUGGESTS THAT A THREAT FOR PRIMARILY SEVERE HAIL WILL
EXIST WITH ANY ADDITIONAL STORMS.

..GOSS.. 04/28/02
000
ACUS01 KWNS 290125
SWODY1
SPC AC 290113

STORM PREDICTION CENTER...NWS/NCEP...NORMAN OK 
DAY 1 CONVECTIVE OUTLOOK...REF AWIPS GRAPHIC PGWE46 KWNS.

VALID 290100Z - 291200Z

THERE IS A MDT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
30 ESE ECG 45 ENE RWI 45 NNE RWI 30 NNW ORF 30 WNW SBY 35 SE DOV.

THERE IS A SLGT RISK OF SVR TSTMS TO THE RIGHT OF A LINE FROM
25 SSE OAJ 40 SW AGS 40 E 0A8 20 S GLH 15 SSW LIT 60 W MEM
40 SE BNA 15 W TYS 25 S EKN 35 NNE BWI 10 NE PHL 20 SE NEL.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 20 SE CHS 20 ESE LFK
45 ESE AUS 10 SE HDO 15 NW JCT 40 SSW ADM 35 NNE MEM 20 E BNA
35 NNW TYS 30 NE CRW 30 NNW PSB 45 E ART 35 NW RUT 20 SW PWM.

GEN TSTMS ARE FCST TO THE RIGHT OF A LINE FROM 35 W INL 35 WNW BRD
50 ENE ANW 15 S VTN 55 SSW PHP 60 NNW PHP 40 SSE P24 80 NE MOT.

...SYNOPSIS...
STRONG MID-LEVEL SHORTWAVE TROUGH WILL CONTINUE MOVING EWD ACROSS
THE NERN U.S. INTO NEW ENGLAND THROUGH THE END OF THIS PERIOD.  AT
THE SURFACE...LOW NOW ANALYZED IN W CENTRAL NY IS FORECAST TO BE
OFF CAPE COD AT THE END OF THE PERIOD.  COLD FRONT...NOW EXTENDING
SWD FROM THE LOW ACROSS ERN PA AND THEN SWWD ALONG THE
APPALACHIANS...IS FORECAST TO MOVE OFF THE MID-ATLANTIC COAST
BETWEEN 29/06 AND 29/12Z.  THE TRAILING SRN PORTION OF THE FRONT
WHICH NOW EXTENDS WSWWD ACROSS THE TN AND LOWER MS VALLEYS INTO N
CENTRAL TX WILL MOVE SLOWLY SWD / SEWD...AND IS EXPECTED TO LIE
ROUGHLY W-E ACROSS THE GULF COAST STATES INTO CENTRAL TX BY THE END
OF THE PERIOD.  

...MID-ATLANTIC REGION SWWD INTO THE SOUTHEAST...
STRONGEST STORMS / SUPERCELLS NOW MOVING OFF THE ATLANTIC COAST
ACROSS MD / DE / VA AHEAD OF COLD FRONT...WITH A VERY SMALL BUT
ENHANCED THREAT AREA FOR TORNADOES...LARGE HAIL...AND DAMAGING
WINDS FOR THE NEXT HOUR OR SO.  ALTHOUGH THE FRONT WILL MOVE OFF
THE NJ / DE / VA COAST BETWEEN NOW AND 06Z...AIRMASS FURTHER SWWD
AHEAD OF THE BOUNDARY FROM THE CAROLINAS INTO GA / AL REMAINS
MODERATELY UNSTABLE WITH DEWPOINTS IN THE 60S TO NEAR 70 AND
SURFACE-BASED CAPE GENERALLY 1000 TO 2000 J/KG.  

FURTHER SWWD...STRONGEST STORMS ONGOING ATTM REMAIN ALONG THE TN /
AL BORDER AND INTO NRN GA.  THESE STORMS WILL LIKELY PERSIST FOR
SEVERAL HOURS WHILE MOVING SEWD AHEAD OF FRONT.  MEANWHILE...SOME
ADDITIONAL DEVELOPMENT IS POSSIBLE ALONG / AHEAD OF FRONT AS
BOUNDARY MOVES ACROSS THE APPALACHIANS INTO THE CAROLINAS...
ALTHOUGH STRONGEST UPPER SUPPORT WILL REMAIN N OF THE REGION AND
MOVE INTO THE ATLANTIC.  

ALTHOUGH SURFACE FLOW WILL BECOME INCREASINGLY SWLY AHEAD OF
FRONT...DEEP-LAYER FLOW WILL REMAIN STRONG THROUGH THE NIGHT WITH
40 TO 60 KT WLY FLOW AT 700 MB AND 50 TO 70 KTS AT MID-LEVELS.  AS
A RESULT...ONGOING STORMS IN THE TN VALLEY AND ANY NEW DEVELOPMENT
AHEAD OF COLD FRONT EAST OF THE APPALACHIANS WILL LIKELY BECOME
SEVERE...WITH A THREAT FOR PRIMARILY LARGE HAIL AND DAMAGING
WINDS...AND PERHAPS A COUPLE OF TORNADOES.  

...LOWER MS VALLEY REGION INTO CENTRAL AND NERN TX... 
THUNDERSTORM OVER CENTRAL TX HAS WEAKENED OVER THE PAST HALF
HOUR...BUT ISOLATED DEVELOPMENT IS POSSIBLE INVOF SURFACE BOUNDARY
FROM CENTRAL AND NERN TX EWD INTO SRN AR / NRN LA / NRN MS. 
ALTHOUGH LOW-LEVEL FLOW IS WEAKER ACROSS THIS REGION...SUFFICIENT
FLOW ALOFT SUGGESTS THAT A THREAT FOR PRIMARILY SEVERE HAIL WILL
EXIST WITH ANY ADDITIONAL STORMS.

..GOSS.. 04/28/02