

242 

WWUS20 KWNS 282355

SEL3

SPC WW 282355

TXZ000-290400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 573

NWS STORM PREDICTION CENTER NORMAN OK

700 PM CDT TUE JUN 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST TEXAS



EFFECTIVE THIS TUESDAY EVENING FROM 700 PM UNTIL 1100 PM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTH

NORTHWEST OF TYLER TEXAS TO 45 MILES EAST NORTHEAST OF LONGVIEW

TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 571. WATCH NUMBER 571 WILL NOT

BE IN EFFECT AFTER 700 PM CDT. CONTINUE...WW 572...



DISCUSSION...CLUSTER OF SEVERE STORMS ALONG RESIDUAL OUTFLOW

BOUNDARY WILL CONTINUE TO DEVELOP SWD/SWWD ACROSS NE TX FOR THE NEXT

FEW HOURS...FUELED BY A HOT/UNSTABLE AIR MASS SW OF THE ONGOING

STORMS.  DAMAGING WINDS AND LARGE HAIL WILL REMAIN A THREAT...UNTIL

THE BOUNDARY LAYER BEGINS TO STABILIZE AFTER SUNSET.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 36020.





...THOMPSON



991 

WWUS20 KWNS 282355

SEL3

SPC WW 282355

TXZ000-290400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 573...RESENT

NWS STORM PREDICTION CENTER NORMAN OK

700 PM CDT TUE JUN 28 2011



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       NORTHEAST TEXAS



EFFECTIVE THIS TUESDAY EVENING FROM 700 PM UNTIL 1100 PM CDT.



HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 30 MILES NORTH

NORTHWEST OF TYLER TEXAS TO 45 MILES EAST NORTHEAST OF LONGVIEW

TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).



REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE

FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH

AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR

THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS

AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY

DO PRODUCE TORNADOES.



OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES

SEVERE THUNDERSTORM WATCH NUMBER 571. WATCH NUMBER 571 WILL NOT

BE IN EFFECT AFTER 700 PM CDT. CONTINUE...WW 572...



DISCUSSION...CLUSTER OF SEVERE STORMS ALONG RESIDUAL OUTFLOW

BOUNDARY WILL CONTINUE TO DEVELOP SWD/SWWD ACROSS NE TX FOR THE NEXT

FEW HOURS...FUELED BY A HOT/UNSTABLE AIR MASS SW OF THE ONGOING

STORMS.  DAMAGING WINDS AND LARGE HAIL WILL REMAIN A THREAT...UNTIL

THE BOUNDARY LAYER BEGINS TO STABILIZE AFTER SUNSET.



AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM

MOTION VECTOR 36020.





...THOMPSON

