Severe Thunderstorm Warning 12, NWS Des Moines, IA

IAZALL-082220-

SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
419 PM CDT MON APR 8 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF EASTERN IOWA
THIS MONDAY AFTERNOON AND EVENING UNTIL 9 PM CDT...

AT 410 PM...SCATTERED VERY STRONG THUNDERSTORMS CONTINUED FROM
SOUTHWEST INTO NORTHEAST IOWA.  THE STRONGEST STORMS WERE LOCATED IN
A 20 MILE WIDE BAND EXTENDING FROM 30 MILES EAST OF COUNCIL BLUFFS NEAR
OAKLAND...TO 10 MILES SOUTH OF WATERLOO.  THESE STORMS ARE CAPABLE OF
PRODUCING BRIEF STRONG GUSTY WINDS...VERY HEAVY RAIN...SMALL HAIL AND
FREQUENT DEADLY LIGHTNING.

THESE THUNDERSTORMS WERE PART OF A LARGE AREA OF SHOWERS AND STORMS
OCCURRING IN A 70 MILE WIDE BAND THAT EXTENDED FROM THE SOUTHWEST CORNER
OF IOWA...TO NORTHEAST IOWA 40 MILES NORTHEAST OF WATERLOO.

THE SHOWERS AND STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR WHILE
THE ENTIRE AREA WAS DRIFTING EAST AT AROUND 15 MILES AN HOUR.

JAK

IAZALL-082245-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
445 PM CDT MON APR 8 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF EASTERN IOWA
THIS MONDAY AFTERNOON AND EVENING UNTIL 9 PM CDT...

AT 430 PM...SCATTERED VERY STRONG THUNDERSTORMS CONTINUED FROM
SOUTHWEST INTO NORTHEAST IOWA.  THE STRONGEST STORMS WERE LOCATED IN
A 20 MILE WIDE BAND EXTENDING FROM 25 MILES EAST OF COUNCIL BLUFFS...
BETWEEN OAKLAND AND RED OAK...TO THE STORY CITY AND JEWELL AREAS...
40 TO 50 MILES NORTH OF DES MOINES...TO NEAR WATERLOO.  OTHER STRONG
STORMS WERE DETECTED 25 TO 35 MILES WEST OF LAMONI IN SOUTHWEST IOWA...
AND ALONG THE MISSISSIPPI RIVER 20 MILES SOUTHEAST OF DUBUQUE.

THESE STORMS CAN PRODUCE HEAVY RAINFALL...DANGEROUS LIGHTNING...SMALL
HAIL...AND DAMAGING WIND.

THESE STORMS WERE PART OF A LARGE SYSTEM OF SHOWERS AND THUNDERSTORMS
THAT COVERED MUCH OF THE CENTRAL THIRD OF IOWA FROM THE SOUTHWEST
CORNER OF THE STATE TO THE NORTHEAST CORNER.  MOST OF THE SHOWERS
WERE EAST OF ALINE FROM 15 MILES SOUTHEAST OF COUNCIL BLUFFS TO THE
MASON CITY AREA.

THE STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR...WHILE THE
AREA OF SHOWERS WAS MOVING EAST AT 15 MILES AN HOUR.

MILLER/KALLMAN

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IAZALL-082315-

SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
520 PM CDT MON APR 8 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF EASTERN IOWA
THIS MONDAY AFTERNOON AND EVENING UNTIL 9 PM CDT...

AT 510 PM...SCATTERED VERY STRONG THUNDERSTORMS CONTINUED FROM
SOUTHWEST INTO NORTH CENTRAL AND NORTHEAST IOWA.  THE STRONGEST STORMS
WERE LOCATED IN A CLUSTER OVER SOUTHWEST IOWA...FROM 20 TO 45 MILES
SOUTHWEST OF DES MOINES...NEAR THE COMMUNITIES OF WINTERSET AND AFTON.
OTHER STRONG STORMS WERE LOCATED IN A 20 MILE WIDE BAND THAT STRETCHED
FROM 50 MILES SOUTHEAST OF COUNCIL BLUFFS NORTH TO THE ATLANTIC AND
CUMBERLAND AREAS...50 MILES EAST OF COUNCIL BLUFFS...THEN NORTHEAST TO
NEAR GRUNDY CENTER...25 MILES SOUTHWEST OF WATERLOO.

THESE STORMS CAN PRODUCE HEAVY RAINFALL...DANGEROUS LIGHTNING...SMALL
HAIL...AND DAMAGING WIND.
/
THESE STORMS WERE PART OF A LARGE SYSTEM OF SHOWERS AND THUNDERSTORMS
THAT COVERED MUCH OF THE CENTRAL THIRD OF IOWA FROM THE SOUTHWEST
CORNER TO THE NORTHEAST CORNER.

THE STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR...WHILE THE AREA
OF SHOWERS WAS MOVING EAST AT 15 MILES AN HOUR.

MILLER/KALL3MAN

IAZALL-082345-

SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
545 PM CDT MON APR 8 1991

...SEVERE THUNDERSTORM WATCH IN EFFECT FOR PORTIONS OF SOUTH CENTRAL
...SOUTHEAST...AND EASTERN IOWA UNTIL 9 PM CDT THIS MONDAY EVENING...

AT 530 PM...SCATTERED VERY STRONG THUNDERSTORMS CONTINUED OVER SOUTHWEST
...SOUTH CENTRAL...CENTRAL...AND NORTHEAST IOWA.  THE STRONGEST STORMS
WERE LOCATED IN A 10 MILE WIDE BAND FROM 55 MILES SOUTHEAST OF COUNCIL
BLUFFS...NEAR CORNING...TO 50 MILES WEST OF DES MOINES...NEAR ADAIR.
OTHER STRONG STORMS WERE LOCATED IN A 10 TO 30 MILE WIDE BAND FROM 30
MILES NORTHWEST OF DES MOINES...TO 15 MILES WEST OF WATERLOO.  THESE
STORMS CAN PRODUCE HEAVY RAINFALL...DANGEROUS LIGHTNING...SMALL HAIL...
AND DAMAGING WIND.

THESE STORMS WERE PART A LARGE SYSTEM OF SHOWERS AND THUNDERSTORMS THAT
COVERED MUCH OF CENTRAL AND NORTHEAST IOWA.  THE SHOWERS WERE IN A 75
TO 100 MILE WIDE BAND THAT WAS EAST OF A LINE FROM 45 MILES SOUTHEAST
OF COUNCIL BLUFFS...TO THE LAKE CITY AREA...70 MILES NORTHWEST OF
DES MOINES...TO THE MASON CITY VICINITY.

THE STORMS WERE MOVING NORTHEAST AT 40 MILES AN HOUR...WHILE THE
SHOWERS WERE DRIFTOING EAST AT 15 MILES AN HOUR.

MILLER