

226 

WWUS20 KWNS 230048

SEL8

SPC WW 230048

NEZ000-SDZ000-230800-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 348

NWS STORM PREDICTION CENTER NORMAN OK

745 PM CDT SAT JUN 22 2013



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  NORTHERN NEBRASKA

  WESTERN AND CENTRAL SOUTH DAKOTA



* EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 745 PM

  UNTIL 300 AM CDT.



* PRIMARY THREATS INCLUDE...

  SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

  SEVERAL LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 100

STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF

MOBRIDGE SOUTH DAKOTA TO 40 MILES SOUTH SOUTHWEST OF AINSWORTH

NEBRASKA.  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 344...WW 345...WW

346...WW 347...



DISCUSSION...NW SD SQLN WITH EMBEDDED BOWING SEGMENTS EXPECTED TO

CONTINUE ENEWD...WITH ADDITIONAL DEVELOPMENT POSSIBLE ON ITS SRN

SIDE. OTHER STRONG TO SVR STORMS MAY EVOLVE EWD INTO THE SW SD

BADLANDS FROM EXISTING ACTIVITY NOW S OF RAP. SOME OF THESE STORMS

ALSO MAY AFFECT N CNTRL NEB LATER TNGT. EXPECTED WIND

FIELD/INSTABILITY MAY REMAIN SUFFICIENT TO PRODUCE OCCASIONAL SVR

WIND/HAIL THROUGH EARLY SUN AS THE MAIN PART OF NRN RCKYS SHORTWAVE

TROUGH CONTINUES ENE TOWARD REGION.



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 24030.





...CORFIDI

