Severe Thunderstorm Warning 147, NWS Des Moines, IA

LOCAL STORM REPORT...DELAYED REPORT FROM 9/11/91 EPISODE
NATIONAL WEATHER SERVICE DES MOINES IA
1024 AM CDT THU SEP 12 1991

TIME                     EVENT/COUNTY/

800 PM CDT              WIND DAMAGE - wPOWER LINES DOWN 7 EAST OF BREDA
                        (40 SW FOD) /CARROLL COUNTY/

810 PM CDT              WIND DAMAGE - LARGE TREE LIMBS IN CHERDAN
                        (28 SW FOD) /GREEN COUNTY/

BURKE

IAZALL-122015-

SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
215 PM CDT THU SEP 12 1991

AT 205 PM CDT...A 10-MILE WIDE BAND OF STRONG THUNDERSTORMS WAS FROM 45
MILES NORTHWEST OF DES MOINES NEAR COON RAPIDS TO 10 MILES SOUTHEAST OF
FORT DODGE NEAR LEHIGH.  VERY HEAVY RAIN AND STRONG GUSTY WINDS CAN BE
EXPECTED WITH THE PASSAGE OF THESE STORMS.  0.90 INCH OF RAIN WAS
RECEIVED IN 30 MINUTES AT DENISON AS A STORM PASSED THROUGH THERE.

ALSO...SCATTERED THUNDERSTORMS AND SHOWERS WERE OVER NORTHWEST IOWA...
GENERALLY NORTHWEST OF A LINE FROM GUTHRIE CENTER TO IOWA FALLS.

MOVEMENT WAS EAST AT 35 MILES AN HOUR.

THE ONE TO TWO HOUR OUTLOOK IS FOR CONTINUED SCATTERED THUNDERSTORMS AND
SHOWERS OVER NORTHWEST IOWA SPREADING INTO NORTH CENTRAL IOWA.

BURKE/MILLER

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SPECIAL WEATER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
248 PM CDT THU SEP 12 1991

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT FOR MUCH OF
CENTRAL AND EASTERN IOWA.

AT 232 PM...AN INTENSE THUNDERSTORM 10 MILES IN DIAMETER WAS 35 MILES
NORTH OF DES MOINES JUST NORTHEAST OF BOONE.  TORRENTIAL RAIN AND STRONG
WINDS CAN BE EXPECTED NEAR THIS STORM.  WINDS GUSTING TO 40 MPH WERE
REPORTED AT BOONE AT 230 PM.

THIS STORM WAS WITH A 10 MILE-WIDE BAND OF STRONG STORMS FROM 30 MILES
NORTHWEST OF DES MOINES TO JUST SOUTHEAST OF STORY CITY.  OTHER SHOWERS
WERE SCATTERED IN AN AREA 60 MILES WIDE NORTHWEST OF A LINE FROM NEAR
REDFIELD TO ELDORA.

MOVEMENT WAS EAST AT 35 MILES AN HOUR.
/
BURKE

IAZALL-122015-

SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
315 PM CDT THU SEP 12 1991

...A SEVERE THUNDERSTORM WATCH FOR MUCH OF CENTRAL AND EASTERN IOWA
UNTIL 9PM...

AT 305 PM CDT...INTENSE THUNDERSTORMS WERE LOCATED OVER CENTRAL IOWA.
THE FIRST STORM WAS LOCATED 35 MILES NORTH NORTHEAST OF DES MOINES...
NEAR NEVADA. THIS STORM COULD PRODUCE EXTREMELY HEAVY RAIN...DAMAGING
THUNDERSTORMS WINDS AND FREQUENT DEADLY LIGHTNING. THE SECOND INTENSE
STORM WAS LOCATED IN THE NORTHWEST SUBURBS OF DES MOINES. THIS STORM
COULD ALSO PRODUCE EXTREMELY HEAVY RAINS AND DAMAGING THUNDERSTORM
WINDS ALONG WITH DEADLY LIGHTNING.

THESE STORMS WERE PART OF AN EXPANDING AREA OF SHOWERS AND STORMS
THAT EXTENDED FROM DES MOINES NORTH TO MASON CITY. THE LEADING EDGE OF
THIS AREA EXTENDED FROM DES MOINES NORTHEAST TO CHARLES CITY.

THE SHOWERS AND STORMS WERE MOVING EAST AT 30 TO 35 MILES AN HOUR.

THE O`UTLOOK THROUGH 4PM...THE AREA OF SHOWERS AND STORMS WILL CONTINUE
AN EASTWARD MOVEMENT...HOWEVER SOUTHWARD DEVELOPMENT ON THIS AREA OF
THUNDERSTORMS.

BARLOW/MILLER

IAZ002-003-007-122100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WATERLOO IA
310 PM CDT THU SEP 12 1991

...SEVERE THUNDERSTORM WATCH FOR PARTS OF NORTHEAST IOWA UNTIL
900 PM CDT...

AT 305 PM THUNDERSTORMS WERE LOCATED IN NORTH CENTRAL AND NORTHEAST
IOWA GENERALLY WEST OF A LINE FROM NEW HAMPTON...ABOUT 30 MILES NORTH
OF WATERLOO...TO REINBECK...15 MILES SOUTHWEST OF WATERLOO. THE
STRONGEST STORM WAS LOCATED ABOUT 15 MILES NORTHWEST OF WATERLOO. THE
THUNDERSTORMS WERE MOVING EAST AT 35 MILES AN HOUR.

OTHER INTENSE THUNDERSTORMS WERE LOCATED IN CENTRAL IOWA.

THE THUNDERSTORMS WILL MOVE INTO THE WAVERLY AREA BY 330 PM AND INTO
THE WATERLOO/CEDAR FALLS AREA BY 400 PM. YOU SHOULD BE ALERT TO VERY
HEAVY RAIN...SMALL HAIL AND STRONG GUSTY WINDS AS THESE STORMS MOVE
INTO YOUR AREA.