

710 

WWUS20 KWNS 020243

SEL8

SPC WW 020243

ARZ000-OKZ000-020800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 488

NWS STORM PREDICTION CENTER NORMAN OK

945 PM CDT MON SEP 1 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHWESTERN ARKANSAS

  NORTH-CENTRAL AND NORTHEASTERN OKLAHOMA



* EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 945 PM

  UNTIL 300 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM ENID OKLAHOMA TO 30

MILES EAST NORTHEAST OF FAYETTEVILLE ARKANSAS.  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 486...WW 487...



DISCUSSION...SVR WIND/HAIL THREAT WITH KS/OK BORDER-AREA CONVECTION

AND TSTMS BETWEEN END-JWG ARE EXPECTED TO SHIFT ESEWD ACROSS THIS

REGION THROUGH REMAINDER EVENING BEFORE DIMINISHING LATE TONIGHT.

DAMAGING GUSTS ARE LIKELY...ALONG WITH ISOLATED LARGE/DAMAGING HAIL.

 A TORNADO CANNOT BE RULED OUT...THOUGH STORM MODE IS BECOMING LESS

FAVORABLE.  REF SPC MESOSCALE DISCUSSION 1661 FOR METEOROLOGICAL

DETAILS.  THIS EFFECTIVELY REPLACES WW 486 IN OK AND ADDS COUNTIES

IN OK/AR.  STILL-VALID KS PORTIONS OF WW 486 MAY BE EXTENDED LOCALLY

BEYOND ITS SCHEDULED 03Z EXPIRATION.



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

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 29035.





...EDWARDS



147 

WWUS20 KWNS 020243

SEL8

SPC WW 020243

ARZ000-OKZ000-020800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 488

NWS STORM PREDICTION CENTER NORMAN OK

945 PM CDT MON SEP 1 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHWESTERN ARKANSAS

  NORTH-CENTRAL AND NORTHEASTERN OKLAHOMA



* EFFECTIVE THIS MONDAY NIGHT AND TUESDAY MORNING FROM 945 PM

  UNTIL 300 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2.5 INCHES IN DIAMETER

    POSSIBLE

  A TORNADO OR TWO POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 45

STATUTE MILES NORTH AND SOUTH OF A LINE FROM ENID OKLAHOMA TO 30

MILES EAST NORTHEAST OF FAYETTEVILLE ARKANSAS.  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 486...WW 487...



DISCUSSION...SVR WIND/HAIL THREAT WITH KS/OK BORDER-AREA CONVECTION

AND TSTMS BETWEEN END-JWG ARE EXPECTED TO SHIFT ESEWD ACROSS THIS

REGION THROUGH REMAINDER EVENING BEFORE DIMINISHING LATE TONIGHT.

DAMAGING GUSTS ARE LIKELY...ALONG WITH ISOLATED LARGE/DAMAGING HAIL.

 A TORNADO CANNOT BE RULED OUT...THOUGH STORM MODE IS BECOMING LESS

FAVORABLE.  REF SPC MESOSCALE DISCUSSION 1661 FOR METEOROLOGICAL

DETAILS.  THIS EFFECTIVELY REPLACES WW 486 IN OK AND ADDS COUNTIES

IN OK/AR.  STILL-VALID KS PORTIONS OF WW 486 MAY BE EXTENDED LOCALLY

BEYOND ITS SCHEDULED 03Z EXPIRATION.



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

TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 29035.





...EDWARDS

