BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
1021 PM CDT TUE AUG 10 2010

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR…
EASTERN DALLAS COUNTY IN CENTRAL IOWA…
JASPER COUNTY IN CENTRAL IOWA…
POLK COUNTY IN CENTRAL IOWA…
POWESHIEK COUNTY IN CENTRAL IOWA…

* UNTIL 430 AM CDT WEDNESDAY

* AT 1019 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS MOVING INTO THE AREA FROM THE NORTHEAST WITH VERY HEAVY RAINFALL EXPECTED ACROSS THE WARNED AREA. RAINFALL RATES OF AN INCH PER HOUR CAN BE EXPECTED THROUGH THE NEXT FEW HOURS…WITH RAINFALL AMOUNTS OF 1 TO 2 INCHES WITH LOCALLY HIGHER AMOUNTS EXPECTED ACROSS MUCH OF THE WARNED AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…DES MOINES…ALTOONA…ANKENY…BONDURANT…BROOKLYN…CLIVE…
COLFAX…DALLAS CENTER…GRIMES…GRINNELL…JOHNSTON…MONROE…MONTEZUMA…
NEWTON…PERRY…PLEASANT HILL…POLK CITY…PRAIRIE CITY…URBANDALE…WAUKEE…WEST DES MOINES…WINDSOR HEIGHTS AND WOODWARD.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS…HIGHWAYS AND UNDERPASSES. ADDITIONALLY…COUNTRY ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS…STREAMS AND OTHER LOW LYING AREAS ARE SUBJECT TO FLOODING.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. DO NOT ENTER THE WATER. TURN AROUND AND MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.