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IAZ001>003-012>014-MNZ071-072-080-081-089-090-097-098-SDZ038>040-050-

052>069-120300-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

643 PM CDT WED APR 11 2001



A FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT THIS EVENING

FOR PEOPLE IN THE FOLLOWING COUNTIES...



IN EAST CENTRAL SOUTH DAKOTA...

     SANBORN...BROOKINGS...MINER...KINGSBURY...BEADLE...MOODY...LAKE

     AND JERAULD.



IN SOUTHEAST SOUTH DAKOTA...

     DAVISON...HANSON AND MCCOOK.



IN SOUTHWEST MINNESOTA...

     LINCOLN AND PIPESTONE.



RAIN WITH A FEW EMBEDDED THUNDERSTORMS COULD PRODUCE LOCALLY HEAVY

RAIN ACROSS THESE AREAS THIS EVENING. WIDESPREAD RAINFALL AMOUNTS

OF ONE HALF TO ONE INCH ARE POSSIBLE...WITH LOCAL AMOUNTS OF 1 TO 2

INCHES POSSIBLE.  MANY AREA STREAMS AND RIVERS REMAIN AT OR ABOVE

FLOOD STAGE...AND THE GROUND IS SATURATED.  ANY ADDITIONAL RAINFALL

WILL FURTHER ENHANCE EXISTING FLOOD PROBLEMS...AND COULD RESULT IN

FLOODING IN NEW AREAS. THE POTENTIAL ALSO EXISTS FOR HEAVY RAIN TO

CAUSE PROBLEMS SUCH AS DRAINAGE BACKUP AND STREET FLOODING...

ESPECIALLY IN URBAN AREAS.



A FLASH FLOOD WATCH MEANS THAT FLASH FLOODING IS POSSIBLE WITHIN THE

WATCH AREA.  AREA RESIDENTS SHOULD MONITOR FLOOD CONDITIONS...AND BE

PREPARED TO MOVE TO HIGHER GROUND SHOULD FLOOD WATERS THREATEN. IF

FLASH FLOODING IS OBSERVED...ACT QUICKLY.  MOVE TO HIGHER GROUND TO

ESCAPE FLOOD WATERS.  DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN

WATER BEGINS RISING.



THE FLASH FLOOD WATCH HAS BEEN CANCELLED FOR THE FOLLOWING

COUNTIES...



IN SOUTHEAST SOUTH DAKOTA...

     HANSON...MINNEHAHA...YANKTON...HUTCHINSON...BON HOMME...

     DOUGLAS...LINCOLN...AURORA AND TURNER.



IN SOUTHWEST MINNESOTA...

     JACKSON...LYON...COTTONWOOD...ROCK...MURRAY AND NOBLES.



IN NORTHWEST IOWA

     LYON...OBRIEN...DICKINSON...OSCEOLA...SIOUX AND CLAY.



IN SOUTH CENTRAL SOUTH DAKOTA

     GREGORY...BRULE AND CHARLES MIX



RAINFALL HAS DIMINISHED OR ENDED ACROSS THESE AREAS.  ALTHOUGH

SHOWERS ARE EXPECTED TO REDEVELOP...THE THREAT OF HEAVY RAINFALL

WHICH COULD PRODUCE FLASH FLOODING HAS DIMINISHED.

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