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408 

RWUS32 KDSM 242129

FFSDSM

IAZ027-028-037>039-047>050-058>062-070>075-081>086-092>097-242300-



URBAN AND SMALL STREAM FLOOD ADVISORY

NATIONAL WEATHER SERVICE DES MOINES IA

328 PM CST SAT FEB 24 2001



ADVISORY INFORMATION--AN URBAN AND SMALL STREAM FLOOD ADVISORY

REMAINS IN EFFECT UNTIL 600 PM FOR PORTIONS OF SOUTHEAST IOWA ALONG

AND SOUTHEAST OF A CORYDON TO GRINNELL LINE...INCLUDING OTTUMWA.  THE

REMAINDER OF THE ADVISORY HAS BEEN CANCELLED.



FORECAST RAINFALL--NATIONAL WEATHER SERVICE DOPPLER RADARS

CONTINUE TO INDICATE MORE RAIN MOVING FROM MISSOURI INTO

SOUTHEAST IOWA.  RAINFALL RATES IN THE CURRENT ADVISORY AREAS MAY

REACH A QUARTER INCH PER HOUR.  LESSER RAINS ARE EXPECTED JUST TO THE

NORTHWEST...SO PORTIONS OF THE ADVISORY HAVE BEEN CANCELLED.



METEOROLOGICAL COMMENTS--RECENT RAINS FROM LAST NIGHT AND TODAY

IN COMBINATION WITH MELTING SNOW AND ADDITIONAL RAINS WILL

CONTINUE TO CAUSE PONDING OF WATER ON ROADS AND RISES IN SMALL

STREAMS AND CREEKS.  MODERATE RAINFALL RATES AND SNOW CLOGGED DRAINS

MAY MAKE IT DIFFICULT FOR WATER TO DRAIN FROM ROADS...ESPECIALLY

IN URBAN AREAS.  THE OTTUMWA AIRPORT HAS REPORTED 0.70 INCHES

SINCE 6 AM WITH RAINFALL RATES OF A TENTH OF AN INCH PER HOUR

POSSIBLE FOR THE REST OF THE AFTERNOON.



THE RAINS WILL RUNOFF INTO SMALL STEAMS AND CREEKS AS WELL WHICH MAY

REACH BANKFULL WITH ICE PROHIBITING NORMAL DRAINAGE AND STREAMFLOW.



PRECAUTIONS--BE PREPARED FOR STANDING WATER ON ROADS AND HIGHWAYS.

STAY AWAY FROM SMALL STREAMS AND CREEKS WHICH MAY FILL WITH WATER

QUICKLY.

$$



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