BULLETIN – IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
637 PM CDT WED MAY 11 2011

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR…
SOUTHEASTERN DALLAS COUNTY IN CENTRAL IOWA…
NORTHEASTERN MADISON COUNTY IN SOUTH CENTRAL IOWA…
POLK COUNTY IN CENTRAL IOWA…
NORTHWESTERN WARREN COUNTY IN SOUTH CENTRAL IOWA…

* UNTIL 730 PM CDT

* AT 636 PM CDT…LOCAL LAW ENFORCEMENT REPORTED A LINE OF SEVERE
THUNDERSTORMS PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THESE
STORMS WERE LOCATED ALONG A LINE EXTENDING FROM 6 MILES SOUTHEAST
OF DE SOTO TO 7 MILES SOUTHWEST OF NORWALK TO 9 MILES WEST OF
INDIANOLA…AND MOVING NORTHEAST AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE…
DES MOINES…NORWALK…WEST DES MOINES…WAUKEE…CLIVE…WINDSOR
HEIGHTS…URBANDALE…GRIMES…PLEASANT HILL…JOHNSTON…
ALTOONA…ANKENY…POLK CITY…BONDURANT…CUMMING…SPRING HILL…
DES MOINES INT AIRPORT…SAYLORVILLE…ANKENY AIRPORT AND
SAYLORVILLE LAKE.

THIS INCLUDES INTERSTATE 80 BETWEEN MILE MARKERS 114 AND 149.

THIS INCLUDES INTERSTATE 35 BETWEEN MILE MARKERS 53 AND 102.

THIS INCLUDES INTERSTATE 235 BETWEEN MILE MARKERS 1 AND 14.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

PREPARE FOR DAMAGING WINDS…FALLING TREES AND FLYING DEBRIS. MOVE
INDOORS AND STAY AWAY FROM WINDOWS. IF YOU ARE IN A MOBILE HOME…
SEEK SHELTER IN A REINFORCED BUILDING.

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. SEVERE
THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO WARNING. IF A
TORNADO IS SPOTTED…IMMEDIATELY MOVE TO THE BASEMENT OR SMALL
INTERIOR ROOM OF A REINFORCED BUILDING.