279  
FGUS63 KMSR 222110  
ESGSMW  
 
SAGINAW RIVER BASIN  
LONG-RANGE PROBABILISTIC OUTLOOK  
NATIONAL WEATHER SERVICE  
NORTH CENTRAL RIVER FORECAST CENTER TWIN CITIES/CHANHASSEN MN  
409 PM CDT TUE APR 22 2025  
 
IN TABLE 1 BELOW...THE CURRENT (CS) AND HISTORICAL (HS) OR NORMAL  
PROBABILITIES OF EXCEEDING MINOR...MODERATE...AND MAJOR FLOOD STAGES  
ARE LISTED FOR THE VALID TIME PERIOD.  
 
CS VALUES INDICATE THE PROBABILITY OF REACHING A FLOOD CATEGORY  
BASED ON CURRENT CONDITIONS.  
 
HS VALUES INDICATE THE PROBABILITY OF REACHING A FLOOD CATEGORY  
BASED ON HISTORICAL OR NORMAL CONDITIONS.  
 
WHEN THE VALUE OF CS IS MORE THAN HS...THE PROBABILITY OF  
EXCEEDING THAT LEVEL IS HIGHER THAN NORMAL. WHEN THE VALUE OF CS IS  
LESS THAN HS...THE PROBABILITY OF EXCEEDING THAT LEVEL IS LOWER  
THAN NORMAL.  
 
:...TABLE 1--PROBABILITIES FOR MINOR...MODERATE AND MAJOR FLOODING...  
VALID PERIOD: 04/28/2025 - 07/27/2025  
 
: CURRENT AND HISTORICAL CHANCES  
: OF EXCEEDING FLOOD CATEGORIES  
: AS A PERCENTAGE(%)  
CATEGORICAL :  
FLOOD STAGES (FT) : MINOR MODERATE MAJOR  
LOCATION MINOR MOD MAJOR : CS HS CS HS CS HS  
-------- ----- ----- ----- : ---- ---- ---- ---- ---- ----  
:TOBACCO RIVER  
BVTM4 12.0 14.0 17.0 <5 <5 <5 <5 <5 <5  
:CHIPPEWA RIVER  
MPTM4 8.0 11.0 13.0 <5 5 <5 <5 <5 <5  
:PINE RIVER  
ALMM4 8.0 10.0 12.0 <5 <5 <5 <5 <5 <5  
MPRM4 12.0 14.0 16.0 <5 <5 <5 <5 <5 <5  
:TITTABAWASSEE RIVER  
MIDM4 24.0 25.0 28.0 <5 5 <5 <5 <5 <5  
:SHIAWASSEE RIVER  
OWOM4 7.0 9.0 10.0 9 9 <5 <5 <5 <5  
FRGM4 10.0 14.0 15.0 11 13 <5 <5 <5 <5  
:KEARSLEY CREEK  
DAVM4 10.0 11.0 12.0 9 8 <5 <5 <5 <5  
:FLINT RIVER  
FLTM4 13.0 15.0 17.0 <5 <5 <5 <5 <5 <5  
:CASS RIVER  
CSSM4 14.0 18.0 20.0 <5 <5 <5 <5 <5 <5  
VSSM4 14.0 15.0 18.0 <5 <5 <5 <5 <5 <5  
FRNM4 17.0 20.0 25.0 <5 7 <5 <5 <5 <5  
:SAGINAW RIVER  
SAGM4 17.0 19.0 24.0 5 10 <5 <5 <5 <5  
 
LEGEND  
CS = CONDITIONAL SIMULATION (CURRENT OUTLOOK)  
HS = HISTORICAL SIMULATION  
FT = FEET  
 
IN TABLE 2 BELOW...THE 95 THROUGH 5 PERCENT COLUMNS INDICATE THE PROBABILITY  
OF EXCEEDING THE LISTED STAGE LEVELS (FT) FOR THE VALID TIME PERIOD.  
 
:...TABLE 2--EXCEEDANCE PROBABILITIES...  
 
.B MSR 0428 Z DH12 /DC2504222109/DVD90/HGVFZXT/HGVFZX9/HGVFZXH  
.B1 /HGVFZX5/HGVFZXG/HGVFZX1/HGVFZXF  
:  
: CHANCE OF EXCEEDING STAGES (FT) AT SPECIFIC LOCATIONS  
: VALID PERIOD: 04/28/2025 - 07/27/2025  
:  
: 95% 90% 75% 50% 25% 10% 5%  
: --- --- --- --- --- --- ---  
:TOBACCO RIVER  
BVTM4 2.9/ 2.9/ 4.4/ 5.6/ 6.9/ 7.8/ 8.4  
:CHIPPEWA RIVER  
MPTM4 3.7/ 3.7/ 4.3/ 4.9/ 5.5/ 6.4/ 6.8  
:PINE RIVER  
ALMM4 1.9/ 1.9/ 2.6/ 4.0/ 5.1/ 6.2/ 6.4  
MPRM4 2.8/ 2.8/ 3.4/ 4.1/ 4.8/ 5.9/ 6.6  
:TITTABAWASSEE RIVER  
MIDM4 10.9/ 11.0/ 13.4/ 15.8/ 18.0/ 22.1/ 23.1  
:SHIAWASSEE RIVER  
OWOM4 2.7/ 2.7/ 3.2/ 4.0/ 5.3/ 6.8/ 7.6  
FRGM4 2.6/ 2.6/ 4.0/ 5.2/ 8.2/ 10.5/ 12.2  
:KEARSLEY CREEK  
DAVM4 4.1/ 4.1/ 4.8/ 6.3/ 7.9/ 9.6/ 10.3  
:FLINT RIVER  
FLTM4 5.1/ 5.4/ 5.9/ 7.1/ 8.4/ 10.5/ 12.2  
:CASS RIVER  
CSSM4 5.3/ 5.9/ 6.6/ 7.6/ 8.6/ 9.7/ 9.9  
VSSM4 2.6/ 2.9/ 4.2/ 6.5/ 8.1/ 10.0/ 10.5  
FRNM4 5.2/ 5.4/ 7.2/ 10.4/ 14.1/ 16.2/ 16.6  
:SAGINAW RIVER  
SAGM4 13.2/ 13.2/ 13.4/ 13.5/ 14.3/ 16.0/ 17.2  
.END  
 
IN TABLE 3 BELOW...THE 95 THROUGH 5 PERCENT COLUMNS INDICATE THE PROBABILITY  
OF FALLING BELOW THE LISTED FLOW LEVELS (KCFS) FOR THE VALID TIME PERIOD.  
 
:...TABLE 3--NONEXCEEDANCE PROBABILITIES...  
 
.B MSR 0428 Z DH12 /DC2504222109/DVD90/QIVFZNT/QIVFZN9/QIVFZNH  
.B1 /QIVFZN5/QIVFZNG/QIVFZN1/QIVFZNF  
:  
: CHANCE OF FALLING BELOW FLOWS (KCFS) AT SPECIFIC LOCATIONS  
: VALID PERIOD: 04/28/2025 - 07/27/2025  
:  
: 95% 90% 75% 50% 25% 10% 5%  
: --- --- --- --- --- --- ---  
:TOBACCO RIVER  
BVTM4 0.2/ 0.2/ 0.2/ 0.2/ 0.2/ 0.2/ 0.1  
:CHIPPEWA RIVER  
MPTM4 0.2/ 0.2/ 0.2/ 0.1/ 0.1/ 0.1/ 0.1  
:PINE RIVER  
ALMM4 0.1/ 0.1/ 0.1/ 0.1/ 0.1/ 0.0/ 0.0  
MPRM4 0.1/ 0.1/ 0.1/ 0.1/ 0.1/ 0.0/ 0.0  
:TITTABAWASSEE RIVER  
MIDM4 0.8/ 0.7/ 0.6/ 0.5/ 0.4/ 0.3/ 0.3  
:SHIAWASSEE RIVER  
OWOM4 0.2/ 0.2/ 0.1/ 0.1/ 0.1/ 0.1/ 0.0  
FRGM4 0.2/ 0.2/ 0.2/ 0.1/ 0.1/ 0.1/ 0.0  
:KEARSLEY CREEK  
DAVM4 0.0/ 0.0/ 0.0/ 0.0/ 0.0/ 0.0/ 0.0  
:FLINT RIVER  
FLTM4 0.3/ 0.2/ 0.2/ 0.2/ 0.1/ 0.1/ 0.1  
:CASS RIVER  
CSSM4 0.0/ 0.0/ 0.0/ 0.0/ 0.0/ 0.0/ 0.0  
VSSM4 0.1/ 0.1/ 0.1/ 0.1/ 0.0/ 0.0/ 0.0  
FRNM4 0.2/ 0.2/ 0.1/ 0.1/ 0.1/ 0.1/ 0.0  
:SAGINAW RIVER  
SAGM4 2.3/ 2.1/ 1.8/ 1.5/ 1.3/ 1.2/ 1.1  
.END  
 
:LONG-RANGE PROBABILISTIC OUTLOOKS ARE ISSUED NEAR THE END OF  
:THE MONTH THROUGHOUT THE YEAR.  
 

 
 
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