

419 

WWUS20 KWNS 010246

SEL4

SPC WW 010246

IAZ000-MNZ000-WIZ000-010900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 484

NWS STORM PREDICTION CENTER NORMAN OK

945 PM CDT SUN AUG 31 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN IOWA

  SMALL PART OF EXTREME SOUTHEASTERN MINNESOTA

  SOUTHWESTERN WISCONSIN



* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 945 PM

  UNTIL 400 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH

SOUTHEAST OF OTTUMWA IOWA TO 45 MILES WEST NORTHWEST OF LONEROCK

WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 480...WW 481...WW

482...WW 483...



DISCUSSION...SVR QLCS W/HISTORY OF DAMAGING GUSTS OVER WRN/CENTRAL

IA PROBABLY HAS LEVELED OFF IN INTENSITY -- PER SPC MESOSCALE

DISCUSSION 1652 -- AND WILL BE ENTERING GRADUALLY STABILIZING AIR

MASS FARTHER E.  HOWEVER...SOME WIND-DAMAGE THREAT SHOULD BE

MAINTAINED THROUGH REMAINDER EVENING ALONG/AHEAD OF THIS ACTIVITY AS

IT APCHS MS RIVER...AND ENCOUNTERS FAVORABLY MOIST LOW-LEVEL AIR

MASS.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 24035.





...EDWARDS



679 

WWUS20 KWNS 010246

SEL4

SPC WW 010246

IAZ000-MNZ000-WIZ000-010900-



URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 484

NWS STORM PREDICTION CENTER NORMAN OK

945 PM CDT SUN AUG 31 2014



THE NWS STORM PREDICTION CENTER HAS ISSUED A



* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

  EASTERN IOWA

  SMALL PART OF EXTREME SOUTHEASTERN MINNESOTA

  SOUTHWESTERN WISCONSIN



* EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 945 PM

  UNTIL 400 AM CDT.



* PRIMARY THREATS INCLUDE...

  SCATTERED DAMAGING WINDS AND ISOLATED SIGNIFICANT GUSTS TO 75

    MPH POSSIBLE

  ISOLATED LARGE HAIL EVENTS TO 1.5 INCHES IN DIAMETER POSSIBLE



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60

STATUTE MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH

SOUTHEAST OF OTTUMWA IOWA TO 45 MILES WEST NORTHWEST OF LONEROCK

WISCONSIN.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE

ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).



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 480...WW 481...WW

482...WW 483...



DISCUSSION...SVR QLCS W/HISTORY OF DAMAGING GUSTS OVER WRN/CENTRAL

IA PROBABLY HAS LEVELED OFF IN INTENSITY -- PER SPC MESOSCALE

DISCUSSION 1652 -- AND WILL BE ENTERING GRADUALLY STABILIZING AIR

MASS FARTHER E.  HOWEVER...SOME WIND-DAMAGE THREAT SHOULD BE

MAINTAINED THROUGH REMAINDER EVENING ALONG/AHEAD OF THIS ACTIVITY AS

IT APCHS MS RIVER...AND ENCOUNTERS FAVORABLY MOIST LOW-LEVEL AIR

MASS.



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

TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65

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

MOTION VECTOR 24035.





...EDWARDS

