808  
FGUS63 KMSR 251712  
ESGMIS  
 
MISSISSIPPI RIVER FROM LOCK AND DAM 20 AT CANTON..MISSOURI  
TO CHESTER..ILLINOIS  
LONG-RANGE PROBABILISTIC OUTLOOK  
NATIONAL WEATHER SERVICE  
NORTH CENTRAL RIVER FORECAST CENTER TWIN CITIES/CHANHASSEN MN  
1212 PM CDT THU JUL 25 2024  
 
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: 07/29/2024 - 10/27/2024  
 
: 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  
-------- ----- ----- ----- : ---- ---- ---- ---- ---- ----  
:MISSISSIPPI RIVER  
CANM7 15.0 20.0 25.0 17 13 6 5 <5 <5  
LGRM7 17.0 23.0 25.0 12 12 <5 <5 <5 <5  
UINI2 19.0 22.0 26.0 12 12 8 9 <5 <5  
QLDI2 18.0 21.0 25.0 12 12 8 9 <5 <5  
HNNM7 17.0 22.0 24.0 18 12 6 6 <5 <5  
SVRM7 16.0 20.0 24.0 19 16 9 9 <5 <5  
LUSM7 15.0 20.0 25.0 >95 21 8 9 <5 <5  
CLKM7 25.0 31.0 33.0 >95 21 8 9 <5 5  
CAGM7 26.0 30.0 34.0 >95 18 10 10 <5 <5  
GRFI2 20.0 24.0 29.0 13 22 6 6 <5 <5  
ALOI2 21.0 24.0 31.0 <5 <5 <5 <5 <5 <5  
ALNI2 21.0 29.0 34.0 20 25 7 11 <5 <5  
EADM7 30.0 35.0 40.0 12 14 8 11 <5 5  
HRCM7 26.0 32.0 37.0 14 15 8 12 <5 6  
CHSI2 27.0 35.0 40.0 27 31 12 13 <5 7  
 
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 0729 Z DH12 /DC2407251712/DVD90/HGVFZXT/HGVFZX9/HGVFZXH  
.B1 /HGVFZX5/HGVFZXG/HGVFZX1/HGVFZXF  
:  
: CHANCE OF EXCEEDING STAGES (FT) AT SPECIFIC LOCATIONS  
: VALID PERIOD: 07/29/2024 - 10/27/2024  
:  
: 95% 90% 75% 50% 25% 10% 5%  
: --- --- --- --- --- --- ---  
:MISSISSIPPI RIVER  
CANM7 13.8/ 13.8/ 13.8/ 13.8/ 13.8/ 17.6/ 20.4  
LGRM7 14.7/ 14.7/ 14.7/ 14.7/ 14.7/ 18.5/ 21.3  
UINI2 16.6/ 16.6/ 16.6/ 16.6/ 16.6/ 20.9/ 24.1  
QLDI2 15.5/ 15.5/ 15.5/ 15.5/ 15.5/ 19.6/ 22.9  
HNNM7 15.7/ 15.7/ 15.7/ 15.7/ 15.7/ 19.3/ 22.6  
SVRM7 15.1/ 15.1/ 15.1/ 15.1/ 15.1/ 19.5/ 23.1  
LUSM7 15.4/ 15.4/ 15.4/ 15.4/ 15.4/ 19.4/ 22.4  
CLKM7 25.7/ 25.7/ 25.7/ 25.7/ 25.7/ 30.0/ 33.0  
CAGM7 26.4/ 26.4/ 26.4/ 26.4/ 26.4/ 30.0/ 32.8  
GRFI2 17.1/ 17.1/ 17.1/ 17.1/ 17.2/ 21.5/ 24.5  
ALOI2 19.0/ 19.2/ 19.4/ 19.4/ 19.4/ 19.4/ 19.7  
ALNI2 16.6/ 16.6/ 16.6/ 16.6/ 19.8/ 25.7/ 30.3  
EADM7 18.4/ 18.4/ 18.4/ 18.4/ 22.5/ 32.4/ 37.6  
HRCM7 16.6/ 16.6/ 16.6/ 16.6/ 20.5/ 30.1/ 35.3  
CHSI2 21.7/ 21.7/ 21.7/ 21.7/ 27.3/ 38.1/ 38.9  
.END  
 
IN TABLE 3 BELOW...THE 95 THROUGH 5 PERCENT COLUMNS INDICATE THE PROBABILITY  
OF FALLING BELOW THE LISTED STAGE LEVELS (FT) FOR THE VALID TIME PERIOD.  
 
:...TABLE 3--NONEXCEEDANCE PROBABILITIES...  
 
.B MSR 0729 Z DH12 /DC2407251712/DVD90/HGVFZNT/HGVFZN9/HGVFZNH  
.B1 /HGVFZN5/HGVFZNG/HGVFZN1/HGVFZNF  
:  
: CHANCE OF FALLING BELOW STAGES (FT) AT SPECIFIC LOCATIONS  
: VALID PERIOD: 07/29/2024 - 10/27/2024  
:  
: 95% 90% 75% 50% 25% 10% 5%  
: --- --- --- --- --- --- ---  
:MISSISSIPPI RIVER  
CANM7 6.2/ 4.8/ 3.9/ 3.4/ 2.8/ 2.7/ 2.5  
LGRM7 7.1/ 5.7/ 4.8/ 4.3/ 3.7/ 3.6/ 3.4  
UINI2 12.2/ 11.8/ 11.5/ 11.1/ 10.9/ 10.9/ 10.9  
QLDI2 6.6/ 5.4/ 4.4/ 3.9/ 3.4/ 3.2/ 3.1  
HNNM7 11.0/ 10.4/ 9.9/ 9.9/ 9.7/ 9.7/ 9.7  
SVRM7 7.2/ 6.2/ 5.2/ 4.8/ 4.3/ 4.3/ 4.1  
LUSM7 12.0/ 12.0/ 11.9/ 11.9/ 11.8/ 11.8/ 11.8  
CLKM7 17.4/ 16.3/ 15.0/ 14.3/ 13.8/ 13.7/ 13.5  
CAGM7 17.2/ 16.1/ 14.8/ 14.2/ 13.7/ 13.5/ 13.4  
GRFI2 15.2/ 15.1/ 14.8/ 14.7/ 14.6/ 14.6/ 14.6  
ALOI2 15.4/ 15.4/ 15.4/ 15.4/ 15.4/ 14.3/ 14.3  
ALNI2 7.9/ 7.7/ 5.9/ 4.7/ 4.1/ 3.4/ 3.3  
EADM7 7.9/ 7.2/ 4.4/ 2.6/ 0.8/ -0.2/ -0.6  
HRCM7 5.9/ 5.1/ 2.1/ 0.1/ -1.9/ -3.1/ -3.6  
CHSI2 12.4/ 11.9/ 8.9/ 6.8/ 5.5/ 4.3/ 4.2  
.END  
 
:LONG-RANGE PROBABILISTIC OUTLOOKS ARE ISSUED NEAR THE END OF  
:THE MONTH THROUGHOUT THE YEAR.  
 

 
 
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