BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
103 AM CDT THU JUL 22 2010

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR…
BUENA VISTA COUNTY IN NORTHWEST IOWA
CHEROKEE COUNTY IN NORTHWEST IOWA
CLAY COUNTY IN NORTHWEST IOWA
SOUTHERN O’BRIEN COUNTY IN NORTHWEST IOWA

* UNTIL 700 AM CDT

* AT 100 AM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RAINFALL AMOUNTS OF 2 TO 5 INCHES WILL BE POSSIBLE OVER THE NEXT FEW HOURS.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…SPENCER…STORM LAKE…ALBERT CITY…ALTA…AURELIA…CHEROKEE…CLEGHORN…GREENVILLE…
LAKESIDE…LARRABEE…LINN GROVE…MARATHON…MARCUS…NEWELL…PAULLINA…PETERSON…
QUIMBY…ROYAL…SIOUX RAPIDS…SUTHERLAND…TRUESDALE…WASHTA AND WEBB.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

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.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES…DIPS…OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM…EVEN A SMALL ONE…ON FOOT OR IN A VEHICLE.

FLOODING IS OCCURRING OR IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS…RIVERS…OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND HIKERS SHOULD AVOID STREAMS OR CREEKS.