BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DES MOINES IA
235 AM CDT MON AUG 9 2010

THE NATIONAL WEATHER SERVICE IN DES MOINES HAS ISSUED A

* FLASH FLOOD WARNING FOR…
EXTREME NORTHERN JASPER COUNTY IN CENTRAL IOWA…
MARSHALL COUNTY IN CENTRAL IOWA…
SOUTHEASTERN HAMILTON COUNTY IN CENTRAL IOWA…
SOUTHERN HARDIN COUNTY IN CENTRAL IOWA…
SOUTHWESTERN GRUNDY COUNTY IN CENTRAL IOWA…
STORY COUNTY IN CENTRAL IOWA…

* UNTIL 830 AM CDT

* AT 234 AM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RAINFALL AMOUNTS HAVE ALREADY EXCEEDED 3 TO 4 INCHES IN THIS AREA AND ANOTHER ROUND OF HEAVY RAINFALL IS MOVING INTO THE WARNED AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…AMES…CONRAD…ELDORA…GRUNDY CENTER…HUXLEY…JEWELL…MARSHALLTOWN…NEVADA…STATE CENTER AND STORY CITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 1.5 INCHES ARE POSSIBLE IN THE WARNED AREA.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS SAFELY. TURN AROUND…DONT DROWN.

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.