

000 

WGUS73 KDMX 212120

FFSDMX

IAC013-212315-



FLASH FLOOD STATEMENT

NATIONAL WEATHER SERVICE DES MOINES IA

419 PM CDT FRI MAY 21 2004



...A FLASH FLOOD WARNING CONTINUES FOR BLACK HAWK COUNTY UNTIL 615

PM...



AT 419 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 

INDICATE DEVELOPING THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS 

11 MILES WEST OF HUDSON...OR ABOUT 17 MILES SOUTHWEST OF 

WATERLOO...MOVING EAST AT 30 MPH.



ADDITIONAL THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE...



  NEAR CEDAR FALLS AROUND 425 PM...

  NEAR WATERLOO AROUND 435 PM AND

  NEAR DUNKERTON AROUND 445 PM.



THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING OVER THE WARNING AREA...

RESULTING IN EXCESSIVE RAINFALL. RAINFALL RATES WILL AVERAGE ** TO **

INCHES PER HOUR. THIS WILL PRODUCE FLASH FLOODING ALONG SMALL 

STREAMS AND CREEKS IN SOUTHERN BLACK HAWK COUNTY AS WELL AS IN URBAN 

AREAS OF CEDAR FALLS AND WATERLOO.



FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER

COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF

FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.



LAT...LON 4261 9253 4231 9249 4229 9212 4261 9214



$$



KULA



000 

WGUS73 KDMX 212121 CCA

FFSDMX

IAC013-212315-



FLASH FLOOD STATEMENT...CORRECTION

NATIONAL WEATHER SERVICE DES MOINES IA

419 PM CDT FRI MAY 21 2004



...A FLASH FLOOD WARNING CONTINUES FOR BLACK HAWK COUNTY UNTIL 545

PM...



AT 419 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 

INDICATE DEVELOPING THUNDERSTORMS WITH FLASH FLOOD PRODUCING RAINS 

11 MILES WEST OF HUDSON...OR ABOUT 17 MILES SOUTHWEST OF 

WATERLOO...MOVING EAST AT 30 MPH.



ADDITIONAL THUNDERSTORMS WITH EXCESSIVE RAINFALL WILL BE...



  NEAR CEDAR FALLS AROUND 425 PM...

  NEAR WATERLOO AROUND 435 PM AND

  NEAR DUNKERTON AROUND 445 PM.



THUNDERSTORMS ARE CONTINUOUSLY REDEVELOPING OVER THE WARNING 

AREA...RESULTING IN EXCESSIVE RAINFALL. RAINFALL RATES WILL AVERAGE 

1 TO 2 INCHES PER HOUR. THIS WILL PRODUCE FLASH FLOODING ALONG SMALL 

STREAMS AND CREEKS IN SOUTHERN BLACK HAWK COUNTY AS WELL AS IN URBAN 

AREAS OF CEDAR FALLS AND WATERLOO.



FLASH FLOODS OCCUR QUICKLY...MOVE TO HIGHER GROUND. AVOID WATER

COVERED ROADS...THE ROAD MAY BE WASHED OUT. LESS THAN ONE FOOT OF

FAST FLOWING WATER CAN SWEEP AN AUTOMOBILE OFF THE ROAD.



LAT...LON 4261 9253 4231 9249 4229 9212 4261 9214



$$



KULA

