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185 

RWUS32 KFSD 221753

FFSFSD

IAZ001-SDZ055-056-061-062-066-067-069>071-221900-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE SIOUX FALLS SD

1250 PM CDT SUN APR 22 2001



...SMALL STREAM FLOOD ADVISORY CONTINUES UNTIL 2 PM FOR 

MINNEHAHA...YANKTON...MOODY...LINCOLN...MCCOOK...LAKE COUNTIES OF 

SOUTHEAST SOUTH DAKOTA...



...SMALL STREAM FLOOD ADVISORY CANCELLED FOR CLAY AND UNION COUNTIES 

OF SOUTHEAST SOUTH DAKOTA AND FOR LYON COUNTY OF NORTHWEST IOWA...



HEAVY RAINS WILL CONTINUE TO FALL MAINLY NORTHWEST OF A YANKTON TO 

SIOUX FALLS LINE THROUGH 2 PM WITH ADDITIONAL RAINFALL AMOUNTS UP TO 

ONE INCH.



EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL 

CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY

ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER 

LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

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