

869 

WWUS20 KWNS 172322

SEL8

SPC WW 172322

ALZ000-180400-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 168

NWS STORM PREDICTION CENTER NORMAN OK

620 PM CDT FRI MAY 17 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTH-CENTRAL ALABAMA



* EFFECTIVE THIS FRIDAY EVENING FROM 620 PM UNTIL 1100 PM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  A FEW LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE

  A FEW TORNADOES POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 40

STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST

SOUTHWEST OF TUSCALOOSA ALABAMA TO 20 MILES NORTHEAST OF

MONTGOMERY ALABAMA.  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.



&&



OTHER WATCH INFORMATION...CONTINUE...WW 166...WW 167...



DISCUSSION...A SOUTHEASTWARD MOVING CLUSTER OF STORMS WILL CONTINUE

TO SPREAD ACROSS PORTIONS OF WEST-CENTRAL/SOUTH-CENTRAL AL THIS

EVENING...WITH THE POSSIBILITY OF SEMI-DISCRETE SUPERCELLS AHEAD OF

THIS LIKELY EXPANDING/SUSTAINED LINEAR CLUSTER. WHILE A RELATIVELY

MOIST LOW-LEVEL ENVIRONMENT AND MODEST SHEAR/SRH MAY SUPPORT SOME

TORNADO THREAT INTO EARLY EVENING...THE PRIMARY HAZARD SHOULD BE

DAMAGING WINDS AND SOME SEVERE HAIL.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM

MOTION VECTOR 27025.





...GUYER

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