

037 

WWUS20 KWNS 200355

SEL5

SPC WW 200355

SDZ000-200900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 315

NWS STORM PREDICTION CENTER NORMAN OK

1055 PM CDT FRI JUN 19 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA



* EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1055 PM

  UNTIL 400 AM CDT.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



* PRIMARY THREATS INCLUDE...

  WIDESPREAD DAMAGING WINDS AND SCATTERED SIGNIFICANT GUSTS TO 90

    MPH EXPECTED

  WIDESPREAD LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3

    INCHES IN DIAMETER LIKELY

  A FEW TORNADOES POSSIBLE



SUMMARY...FAST-MOVING INTENSE SUPERCELL STORMS OVER WESTERN SOUTH

DAKOTA WILL TRACK ACROSS THE WATCH AREA TONIGHT...WITH THE POTENTIAL

OF WIDESPREAD AND EXTREMELY DAMAGING WINDS ALONG WITH LARGE HAIL AND

ISOLATED TORNADOES.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

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

SOUTHWEST OF RAPID CITY SOUTH DAKOTA TO 35 MILES EAST OF

CHAMBERLAIN SOUTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 314...



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

TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80

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

MOTION VECTOR 30040.





...HART



726 

WWUS20 KWNS 200355

SEL5

SPC WW 200355

SDZ000-200900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 315

NWS STORM PREDICTION CENTER NORMAN OK

1055 PM CDT FRI JUN 19 2015



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  SOUTHWEST AND SOUTH CENTRAL SOUTH DAKOTA



* EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1055 PM

  UNTIL 400 AM CDT.



...THIS IS A PARTICULARLY DANGEROUS SITUATION...



* PRIMARY THREATS INCLUDE...

  WIDESPREAD DAMAGING WINDS AND SCATTERED SIGNIFICANT GUSTS TO 90

    MPH EXPECTED

  WIDESPREAD LARGE HAIL AND ISOLATED VERY LARGE HAIL EVENTS TO 3

    INCHES IN DIAMETER LIKELY

  A FEW TORNADOES POSSIBLE



SUMMARY...FAST-MOVING INTENSE SUPERCELL STORMS OVER WESTERN SOUTH

DAKOTA WILL TRACK ACROSS THE WATCH AREA TONIGHT...WITH THE POTENTIAL

OF WIDESPREAD AND EXTREMELY DAMAGING WINDS ALONG WITH LARGE HAIL AND

ISOLATED TORNADOES.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 50

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

SOUTHWEST OF RAPID CITY SOUTH DAKOTA TO 35 MILES EAST OF

CHAMBERLAIN SOUTH DAKOTA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).



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 314...



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

TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80

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

MOTION VECTOR 30040.





...HART

