9WEATHER NOW & The National Weather Service

Latest Severe Weather Watches from the Storm Prediction Center

529

WWUS20 KWNS 100002

SEL8  

SPC WW 100002

IAZ000-MNZ000-NEZ000-SDZ000-100700-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 568

NWS STORM PREDICTION CENTER NORMAN OK

705 PM CDT THU JUL 9 2009



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 



       WESTERN IOWA

       SOUTHWEST MINNESOTA

       NORTHEAST NEBRASKA

       SOUTHEAST SOUTH DAKOTA



EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 705 PM

UNTIL 200 AM CDT.



HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95

STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES WEST

NORTHWEST OF WORTHINGTON MINNESOTA TO 15 MILES SOUTH SOUTHWEST OF

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

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).



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.



DISCUSSION...CU/TCU FIELD AND SCATTERED THUNDERSTORMS ARE BEGINNING

TO INCREASE OVER NORTHEAST NEB/SOUTHEAST SD...AND WILL LIKELY TRACK

EASTWARD INTO IA THROUGH THE EVENING.  OTHER STORMS MAY REDEVELOP

THROUGH THE EVENING OVER THIS SAME AREA AS LOW LEVEL JET INCREASES. 

STRONG INSTABILITY AND 50-60 KNOTS OF EFFECTIVE SHEAR WILL PROMOTE

SUPERCELLS CAPABLE OF VERY LARGE HAIL AND DAMAGING WINDS.



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

TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60

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

MOTION VECTOR 27030.





...HART









000


WWUS20 KWNS 100002


SEL8  


SPC WW 100002


IAZ000-MNZ000-NEZ000-SDZ000-100700-





URGENT - IMMEDIATE BROADCAST REQUESTED


SEVERE THUNDERSTORM WATCH NUMBER 568


NWS STORM PREDICTION CENTER NORMAN OK


705 PM CDT THU JUL 9 2009





THE NWS STORM PREDICTION CENTER HAS ISSUED A


SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 





       WESTERN IOWA


       SOUTHWEST MINNESOTA


       NORTHEAST NEBRASKA


       SOUTHEAST SOUTH DAKOTA





EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 705 PM


UNTIL 200 AM CDT.





HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70


MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.





THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 95


STATUTE MILES EAST AND WEST OF A LINE FROM 25 MILES WEST


NORTHWEST OF WORTHINGTON MINNESOTA TO 15 MILES SOUTH SOUTHWEST OF


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


ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).





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.





DISCUSSION...CU/TCU FIELD AND SCATTERED THUNDERSTORMS ARE BEGINNING


TO INCREASE OVER NORTHEAST NEB/SOUTHEAST SD...AND WILL LIKELY TRACK


EASTWARD INTO IA THROUGH THE EVENING.  OTHER STORMS MAY REDEVELOP


THROUGH THE EVENING OVER THIS SAME AREA AS LOW LEVEL JET INCREASES. 


STRONG INSTABILITY AND 50-60 KNOTS OF EFFECTIVE SHEAR WILL PROMOTE


SUPERCELLS CAPABLE OF VERY LARGE HAIL AND DAMAGING WINDS.





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


TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60


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


MOTION VECTOR 27030.








...HART












996

WWUS20 KWNS 091855

SEL7  

SPC WW 091855

IAZ000-MOZ000-NEZ000-092000-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH - NUMBER 567 

NWS STORM PREDICTION CENTER NORMAN OK 

155 PM CDT THU JUL 9 2009



THE NWS STORM PREDICTION CENTER HAS CANCELLED 

SEVERE THUNDERSTORM WATCH NUMBER 567 ISSUED AT 925 AM CDT FOR PORTIONS OF



         IOWA

         MISSOURI

         NEBRASKA











000


WWUS20 KWNS 091855


SEL7  


SPC WW 091855


IAZ000-MOZ000-NEZ000-092000-





URGENT - IMMEDIATE BROADCAST REQUESTED


SEVERE THUNDERSTORM WATCH - NUMBER 567 


NWS STORM PREDICTION CENTER NORMAN OK 


155 PM CDT THU JUL 9 2009





THE NWS STORM PREDICTION CENTER HAS CANCELLED 


SEVERE THUNDERSTORM WATCH NUMBER 567 ISSUED AT 925 AM CDT FOR PORTIONS OF





         IOWA


         MISSOURI


         NEBRASKA















490

WWUS20 KWNS 091503

SEL6  

SPC WW 091503

IAZ000-MNZ000-NEZ000-SDZ000-091500-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH - NUMBER 566 

NWS STORM PREDICTION CENTER NORMAN OK 

1003 AM CDT THU JUL 9 2009



THE NWS STORM PREDICTION CENTER HAS CANCELLED 

SEVERE THUNDERSTORM WATCH NUMBER 566 ISSUED AT 345 AM CDT FOR PORTIONS OF



         IOWA

         MINNESOTA

         NEBRASKA

         SOUTH DAKOTA