BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
344 AM CDT THU JUL 22 2010

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR…
CALHOUN COUNTY IN WEST CENTRAL IOWA…
SAC COUNTY IN WEST CENTRAL IOWA…
SOUTHERN POCAHONTAS COUNTY IN NORTHWEST IOWA…
WEBSTER COUNTY IN CENTRAL IOWA…

* UNTIL 930 AM CDT

* AT 341 AM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RADAR INDICATES THAT 2 TO 5 INCHES OF RAIN HAS FALLEN ACROSS NORTHERN PORTIONS OF THE AREA. THESE THUNDERSTORMS WILL CONTINUE TO EXPAND TOWARD THE SOUTHEAST.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…FORT DODGE…LAKE CITY…LAKE VIEW…MANSON…ODEBOLT…ROCKWELL CITY…NEMAHA AND SAC CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE WARNED AREA.

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.