

781 

WWUS20 KWNS 310231

SEL6

SPC WW 310231

NEZ000-SDZ000-310900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 426

NWS STORM PREDICTION CENTER NORMAN OK

830 PM MDT SAT JUL 30 2016



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  WESTERN NEBRASKA

  SOUTHWESTERN SOUTH DAKOTA



* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 830 PM

  UNTIL 300 AM MDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  ISOLATED VERY LARGE HAIL EVENTS TO 2 INCHES IN DIAMETER POSSIBLE



SUMMARY...A CLUSTER OF SEVERE THUNDERSTORMS OVER THE BLACK HILLS

APPEARS TO HAVE INCREASING POTENTIAL FOR GROWTH INTO A LARGER

COMPLEX OF STORMS...MOVING SOUTHEASTWARD NEAR A BOUNDARY FROM

EARLIER ACTIVITY INTO NEBRASKA...WITH SOME LATERAL EXPANSION

POSSIBLE.  DAMAGING GUSTS ARE THE MAIN HAZARD...WITH LARGE HAIL ALSO

A THREAT.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES NORTH

NORTHEAST OF CHADRON NEBRASKA TO 10 MILES SOUTHWEST OF NORTH

PLATTE NEBRASKA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).



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 425...



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

TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 32035.





...EDWARDS

