BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
119 AM CDT MON JUL 11 2011

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR…
DICKINSON COUNTY IN NORTHWEST IOWA
EASTERN OSCEOLA COUNTY IN NORTHWEST IOWA
SOUTHEASTERN NOBLES COUNTY IN SOUTHWEST MINNESOTA
SOUTHERN JACKSON COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 530 AM CDT

* AT 115 AM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA. RAINFALL RATES OF TWO TO THREE INCHES OF RAINFALL CAN BE EXPECTED…WITH RAINFALL AMOUNTS OF TWO TO FOUR INCHES ACROSS THE WARNED AREA.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…JACKSON…SPIRIT LAKE…ARNOLDS PARK…BREWSTER…HARRIS…LAKE PARK…LAKEFIELD…MILFORD…OCHEYEDAN…OKOBOJI…ORLEANS…ROUND LAKE…SUPERIOR…TERRIL…WAHPETON AND WEST OKOBOJI.

AT 115 AM…EMERGENCY MANAGERS REPORTED STREET FLOODING IN LAKE PARK.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS…URBAN AREAS…HIGHWAYS…STREETS AND UNDERPASSES AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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.