305  
FOUS73 KMSR 211400  
FFHDTX  
 
HEADWATER FLASH FLOOD GUIDANCE  
NWS NORTH CENTRAL RIVER FORECAST CENTER TWIN CITIES/CHANHASSEN MN  
900 AM CDT TUE APR 21 2026  
 
DETROIT HYDROLOGIC SERVICE AREA  
 
AVERAGE INCHES OF RAINFALL FOR GIVEN DURATIONS REQUIRED TO INITIATE  
FLASH FLOODING AT THE INDICATED LOCATIONS.  
 
.B MSR 260421 Z DH12/DC2604211400 /DUE/PPHCF/PPTCF/PPQCF  
:  
:IDENT 1HR 3HR 6HR HEADWATER NAME STREAM  
:======= ==== ==== ==== ==================== ==================  
:  
: *** MICHIGAN HEADWATER POINTS ***  
:  
BHRM4 2.0/ 2.3/ 2.8 :BIRMINGHAM MI RIVER ROUGE  
SFRM4 1.7/ 1.8/ 1.9 :SOUTHFIELD MI RIVER ROUGE  
COLM4 3.1/ 3.1/ 3.0 :COLUMBIAVILLE MI S BR FLINT R  
DAVM4 2.4/ 2.2/ 2.3 :DAVISON MI KEARSLEY CR  
DHEM4 1.3/ 1.5/ 1.8 :DEARBORN HEIGHTS ECORSE R  
DETM4 1.7/ 1.8/ 1.8 :DETROIT MI RIVER ROUGE  
DEXM4 1.8/ 2.1/ 2.3 :DEXTER MI MILL CR  
FLTM4 1.8/ 1.8/ 1.9 :FLINT MI FLINT R  
FLSM4 0.8/ 1.0/ 1.0 :FLINT MI SWARTZ CR  
FTCM4 3.1/ 3.2/ 3.3 :FLINT MI THREAD CR  
FSRM4 1.9/ 1.8/ 1.8 :FRASER MI CLINTON R  
GACM4 1.9/ 1.9/ 2.0 :GARDEN CITY MI MIDDLE RIVER ROUGE  
DLRM4 2.3/ 2.4/ 2.7 :INKSTER MI LOWER RIVER ROUGE  
LHCM4 3.5/ 4.0/ 4.4 :LAPEER MI HUNTERS CR  
LSFM4 3.5/ 4.0/ 4.3 :LAPEER-OREG ST S BR FLINT R  
MCLM4 2.0/ 2.0/ 2.0 :MT CLEMENS MI N BR CLINTON R  
MSPM4 2.0/ 2.3/ 2.5 :MIDLAND-MOUTH STURGEON CR  
MTCM4 2.6/ 3.0/ 3.7 :MT CLEMENS MI CLINTON R  
TECM4 2.7/ 2.8/ 2.9 :TECUMSEH MI RIVER RAISIN  
.END  

 
 
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