Tornado Warning 12, NWS Des Moines, IA

IAZALL-291635-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
1040 AM CDT MON APR 29 1991

AT 1035 AM...A 10 MILE WIDE BAND OF SHOWERS AND ISOLATED STRONG
THUNDERSTORMS WAS LOCATED OVER SOUTH CENTRAL IOWA. THESE SHOWERS
AND STORMS WERE LOCATED FROM LUCAS...OR ABOUT 35 MILES SOUTH OF
DES MOINES SOUTHEAST TO NEAR CENTERVILLE OR ABOUT 60 MILES SOUTHEAST
OF DES MOINES. BRIEF VERY HEAVY RAIN...DEADLY LIGHTNING AND WINDS
GUSTS OF 45 MILES AN HOUR IS LIKELY WITH THE PASSAGE OF THIS NARROW
BAND OF STORMS.

SCATTERED SHOWERS WERE LOCATED IN A 60 MILE WIDE BAND CENTERED FROM 25
MILES EAST OF DES MOINES NORTHWEST TO BANCROFT OR 45 MILES NORTHWEST
OF MASON CITY.

THE SHOWERS AND STORMS OVER SOUTH CENTRAL IOWA WERE MOVING NORTH AT 45
MILES AN HOUR...WHILE THE SHOWERS OVER CENTRAL AND NORTH CENTRAL IOWA
WERE MOVING NORTH NORTHWEST AT 30 MILES AN HOUR.

BARLOW

IAZALL-291835-

SPECIAL WEATHER STATEMENT AND RADAR SUMMARY
NATIONAL WEATHER SERVICE DES MOINES IA
1245 PM CDT MON APR 29 1991

AT 1240 PM...SCATTERED THUNDERSTORMS CONTINUED OVER THE NORTHEAST THIRD
OF IOWA...WHILE THUNDERSTORMS CONTINUED TO DEVELOP AND STRENGTHEN OVER
SOUTHWEST AND SOUTH CENTRAL IOWA.

IN NORTHEAST IOWA..THE SHOWERS AND STORMS WERE NEAR AND NORTHEAST OF
A MASON CITY...WATERLOO...CEDAR RAPIDS LINE...WITH A SECOND SMALL
AREA 30 MILES SOUTHWEST OF WATERLOO...BETWEEN IOWA FALLS AND TAMA.
BRIEF HEAVY RAINS HAVE BEEN REPORTED WITH THE HEAVIER STORMS IN THIS
AREA.

IN SOUTH CENTRAL AND SOUTHWEST IOWA...THE THUNDERSTORMS WERE
GENERLLY BETWEEN RATHBUN LAKE AND OMAHA.  THE STRONGER STORMS IN
THIS AREA WERE PRODUCING ONE-QUARTER TO ONE-HALF IN HAIL AND HEAVY
RAINS...AND ALSO HAVE THE POSSIBILITY OF PRODUCING 30 TO 40 MILE AN
HOUR WIND GUSTS.

ALL OF THE SHOWERS AND STORMS IN THE STATE WERE MOVING NORTH AT
40 MILES AN HOUR.

BARLOW/TRUETT

IAZ010-291900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
103 PM CDT MON APR 29 1991

...STRONG THUNDERSTORMS MOVING INTO CENTRAL IOWA...

AT 1 PM...WEATHER RADAR IN DES MOINES INDICATED SEVERAL VERY STRONG
THUNDERSTORMS ABOUT 15 MILES SOUTH OF DES MOINES.

THESE STORMS WERE MOVING NORTH AT OVER 40 MILES AN HOUR...AND WILL
BE AFFECTING THE DES MOINES AREA BETWEEN 115 AND 2 PM THIS
AFTERNOON.  AT THIS TIME...VERY HEAVY RAINS...SMALL HAIL...AND WIND GU
30 TO 40 MILES AN HOUR CAN BE EXPECTED WITH THE PASSAGE OF THESE
STORMS.

BARLOW/TRUETT

IAZ010-291920-

SPECIAL WEATHER STATEMENT AND WEATHER UPDATE FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
120 PM CDT MON APR 29 1991

AT 114 PM...INTENSE THUNDERSTORMS WERE INDICATED IN EXTREME WESTERN
IOWA...FROM JUST NORTH OF COUNCIL BLUFFS...TO JUST EAST OF MISSOURI
VALLEY...ABOUT 20 MILES NORTH OF COUNCIL BLUFFS.  LARGE HAIL...HIGH
WIND...VERY HEAVY RAIN AND FREQUENT DEADLY LIGHTNING CAN BE EXPECTED
WITH THESE STORMS.

OTHER VERY STRONG STORMS WERE NEAR WINTERSET...INDIANOLA...AND JUST
MOVING INTO THE SOUTHERN PART OF DES MOINES.  PEA SIZE HAIL HAS BEEN
REPORTED AT INDIANOLA AND 45 MILE AN HOUR WIND WAS REPORTED AT THE
DES MOINES AIRPORT AT 117 PM.  THESE STORMS WILL PRODUCE PEA TO MARBLE
SIZE HAIL...WIND TO 55 MILES AN HOUR...BRIEF HEAVY RAIN...AND DEADLY
LIGHTNING.

THE STORMS WERE MOVING NORTH AT 45 MILES AN HOUR.

HUTTON/BARLOW

IAZ010-291930-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE DES MOINES IA
123 PM CDT MON APR 29 1991

...STRONG THUNDERSTORMS MOVING THROUGH CENTRAL IOWA...

AT 122 PM...VERY STRONG THUNDERSTORMS WERE MOVING THROUGH THE
SOUTH SIDE OF DES MOINES.  WINDS AT THE DES MOINES AIRPORT REACHED
ALMOST 50 MILES AN HOUR...AND VERY HEAVY RAINS
AND PEA SIZED HAIL WAS ALSO OCCURRING.

THESE STORMS WILL CONTINUE MOVING NORTH THROUGH CENTRAL IOWA UNTIL
230 PM THIS AFTERNOON.  PEOPLE IN NORTHERN POLK COUNTY...AS WELL AS
THOSE IN THE SAYLORVILLE LAKE RECREATIONAL AREA SHOULD BE PREPARED
FOR THE RAPID ONSET OF THIS STORM.

TRUETT