

968 

WWUS20 KWNS 132233

SEL8

SPC WW 132233

TXZ000-140400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 58

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CDT MON APR 13 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTH CENTRAL TEXAS



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 535 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST

SOUTHWEST OF ABILENE TEXAS TO 50 MILES SOUTHEAST OF CORSICANA

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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.



&&



DISCUSSION...A COLD FRONT EXTENDS EAST TO WEST ACROSS NORTH CENTRAL

TX WITH AN AXIS OF INSTABILITY LOCATED JUST TO THE NORTH OF THE

FRONT. SEVERAL THUNDERSTORMS ARE ONGOING ALONG THE INSTABILITY AXIS

WHERE MODERATE TO STRONG DEEP LAYER SHEAR IS PRESENT. THIS COMBINED

WITH STEEP MID-LEVEL LAPSE RATES WILL BE FAVORABLE FOR SUPERCELLS

WITH LARGE HAIL THIS EVENING.



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 500. MEAN STORM

MOTION VECTOR 28025.





...BROYLES



455 

WWUS20 KWNS 132233

SEL8

SPC WW 132233

TXZ000-140400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 58

NWS STORM PREDICTION CENTER NORMAN OK

535 PM CDT MON APR 13 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTH CENTRAL TEXAS



* EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 535 PM UNTIL

  1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE

  ISOLATED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES WEST

SOUTHWEST OF ABILENE TEXAS TO 50 MILES SOUTHEAST OF CORSICANA

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

WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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.



&&



DISCUSSION...A COLD FRONT EXTENDS EAST TO WEST ACROSS NORTH CENTRAL

TX WITH AN AXIS OF INSTABILITY LOCATED JUST TO THE NORTH OF THE

FRONT. SEVERAL THUNDERSTORMS ARE ONGOING ALONG THE INSTABILITY AXIS

WHERE MODERATE TO STRONG DEEP LAYER SHEAR IS PRESENT. THIS COMBINED

WITH STEEP MID-LEVEL LAPSE RATES WILL BE FAVORABLE FOR SUPERCELLS

WITH LARGE HAIL THIS EVENING.



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 500. MEAN STORM

MOTION VECTOR 28025.





...BROYLES

