BULLETIN – EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SIOUX FALLS SD
1011 PM CDT SAT MAY 19 2012

THE NATIONAL WEATHER SERVICE IN SIOUX FALLS HAS ISSUED A

* FLASH FLOOD WARNING FOR…
DICKINSON COUNTY IN NORTHWEST IOWA
NORTHEASTERN O’BRIEN COUNTY IN NORTHWEST IOWA
NORTHERN CLAY COUNTY IN NORTHWEST IOWA
SOUTHEASTERN JACKSON COUNTY IN SOUTHWEST MINNESOTA

* UNTIL 100 AM CDT

* AT 1002 PM CDT…NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED AREA.
RADAR ESTIMATES 2 TO 4 INCHES OF RAINFALL HAS FALLEN OVER MUCH OF
THE AREA…WITH LOCALIZED HIGHER AMOUNTS POSSIBLE. ADDITIONAL
RAINFALL OF 1 TO 2 INCHES IS POSSIBLE BEFORE THE HEAVIEST RAIN
LIFTS NORTH OF THE AREA AROUND 11 PM.

* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE…
JACKSON…SPENCER…SPIRIT LAKE…ARNOLDS PARK…EVERLY…
FOSTORIA…LAKE PARK…LAKEFIELD…MILFORD…OKOBOJI…ORLEANS…
WAHPETON AND WEST OKOBOJI.

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.