Extended Streamflow Guidance
Issued by NWS
Issued by NWS
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358 FGUS63 KKRF 261429 ESGYEL LONG RANGE PROBABILISTIC OUTLOOK NATIONAL WEATHER SERVICE MISSOURI BASIN RIVER FORECAST CENTER PLEASANT HILL MO 156 PM CST MON NOV 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: 11/30/2024 - 02/28/2025 : 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 -------- ----- ----- ----- : ---- ---- ---- ---- ---- ---- :YELLOWSTONE R AT YELLOWSTONE LK WY BLO YLOW4 9.0 10.0 11.0 <5 <5 <5 <5 <5 <5 :LAMAR R AT TOWER FALLS WY 1NE TFLW4 15.0 16.0 17.0 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT CORWIN SPRINGS MT CORM8 11.0 12.0 13.0 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT LIVINGSTON MT 5S LIVM8 10.0 10.5 11.0 <5 <5 <5 <5 <5 <5 :SHIELDS R AT LIVINGSTON MT 7NE SLDM8 5.5 0.0 0.0 <5 <5 NA NA NA NA :BOULDER R AT BIG TIMBER MT 1E BTMM8 8.0 0.0 0.0 <5 <5 NA NA NA NA :STILLWATER R AT ABSAROKEE MT 1NE SRAM8 7.5 8.0 9.0 <5 <5 <5 <5 <5 <5 :CLKS FK YLLWSTN AT BELFRY MT 10SW BFYM8 9.0 10.0 11.5 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT EDGAR MT EDGM8 9.0 10.0 11.5 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT BILLINGS MT 1NE BILM8 13.5 14.5 15.0 <5 <5 <5 <5 <5 <5 :LTL BIGHORN R AT HARDIN MT 3E HRDM8 8.0 10.0 11.8 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT FORSYTH MT FRYM8 14.0 0.0 0.0 <5 <5 NA NA NA NA :GOOSE CR AT SHERIDAN WY SHBW4 7.5 8.5 9.5 <5 <5 <5 <5 <5 <5 :TONGUE R AT BIRNEY MT BNYM8 7.0 0.0 0.0 <5 <5 NA NA NA NA :TONGUE R AT MILES CITY MT 2S MICM8 10.0 13.0 15.0 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT MILES CITY MT 1NW MILM8 14.0 0.0 0.0 <5 <5 NA NA NA NA :POWDER R AT SUSSEX WY SXXW4 11.0 12.0 13.0 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT GLENDIVE MT 1E GLNM8 53.5 60.0 65.0 <5 <5 <5 <5 <5 <5 :YELLOWSTONE R AT SIDNEY MT 2S SIDM8 19.0 20.0 21.7 <5 <5 <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 FOR THE VALID TIME PERIOD. :...TABLE 2--EXCEEDANCE PROBABILITIES... .B KRF 20241130 Z DH12 /DC2411251356/DVD90/HGVFZXT/HGVFZX9/HGVFZXH .B1 /HGVFZX5/HGVFZXG/HGVFZX1/HGVFZXF : CHANCE OF EXCEEDING STAGES AT SPECIFIC LOCATIONS : VALID PERIOD = 11/30/2024 - 02/28/2025 : 95% 90% 75% 50% 25% 10% 5% : --- --- --- --- --- --- --- :YELLOWSTONE R YLOW4 2.3/ 2.3/ 2.3/ 2.3/ 2.3/ 2.3/ 2.3 :LAMAR R TFLW4 0.9/ 0.9/ 0.9/ 0.9/ 0.9/ 0.9/ 0.9 :YELLOWSTONE R CORM8 0.8/ 0.8/ 0.8/ 0.8/ 0.8/ 0.8/ 0.8 LIVM8 0.5/ 0.5/ 0.5/ 0.5/ 0.5/ 0.5/ 0.5 :SHIELDS R SLDM8 0.8/ 0.8/ 0.8/ 0.8/ 0.8/ 0.8/ 1.0 :BOULDER R BTMM8 1.4/ 1.4/ 1.4/ 1.4/ 1.4/ 1.4/ 1.4 :STILLWATER R SRAM8 1.5/ 1.5/ 1.5/ 1.5/ 1.5/ 1.5/ 1.5 :CLKS FK YLLWSTN BFYM8 0.8/ 0.8/ 0.8/ 0.8/ 0.8/ 0.8/ 0.8 :YELLOWSTONE R EDGM8 1.7/ 1.7/ 1.7/ 1.7/ 1.7/ 1.7/ 1.7 BILM8 2.6/ 2.6/ 2.6/ 2.6/ 2.6/ 2.6/ 2.6 :LTL BIGHORN R HRDM8 2.6/ 2.7/ 2.8/ 3.0/ 3.4/ 4.1/ 4.4 :YELLOWSTONE R FRYM8 2.0/ 2.0/ 2.0/ 2.0/ 2.1/ 2.6/ 2.8 :GOOSE CR SHBW4 1.1/ 1.1/ 1.1/ 1.1/ 1.1/ 1.1/ 1.1 :TONGUE R BNYM8 1.3/ 1.3/ 1.3/ 1.3/ 1.3/ 1.3/ 1.8 MICM8 2.1/ 2.1/ 2.1/ 2.1/ 2.1/ 2.5/ 3.1 :YELLOWSTONE R MILM8 3.3/ 3.3/ 3.3/ 3.3/ 3.4/ 4.0/ 4.2 :POWDER R SXXW4 2.5/ 2.6/ 2.9/ 3.1/ 3.3/ 4.3/ 5.1 :YELLOWSTONE R GLNM8 43.2/ 43.2/ 43.2/ 43.2/ 43.2/ 44.0/ 44.2 SIDM8 3.2/ 3.2/ 3.2/ 3.2/ 3.3/ 4.2/ 4.6 .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 KRF 20241130 Z DH12 /DC2411251356/DVD90/HGVFZNT/HGVFZN9/HGVFZNH .B1 /HGVFZN5/HGVFZNG/HGVFZN1/HGVFZNF : CHANCE OF FALLING BELOW STAGES (FT) AT SPECIFIC LOCATIONS : VALID PERIOD = 11/30/2024 - 02/28/2025 : 95% 90% 75% 50% 25% 10% 5% : --- --- --- --- --- --- --- :YELLOWSTONE R YLOW4 2.1/ 2.1/ 2.1/ 2.1/ 2.1/ 2.1/ 2.1 :LAMAR R TFLW4 0.7/ 0.7/ 0.7/ 0.7/ 0.7/ 0.7/ 0.7 :YELLOWSTONE R CORM8 0.4/ 0.4/ 0.4/ 0.4/ 0.4/ 0.4/ 0.4 LIVM8 -0.2/ -0.2/ -0.2/ -0.2/ -0.2/ -0.2/ -0.2 :SHIELDS R SLDM8 0.7/ 0.6/ 0.6/ 0.6/ 0.6/ 0.6/ 0.6 :BOULDER R BTMM8 1.1/ 1.1/ 1.1/ 1.1/ 1.1/ 1.1/ 1.1 :STILLWATER R SRAM8 1.4/ 1.3/ 1.3/ 1.3/ 1.3/ 1.3/ 1.3 :CLKS FK YLLWSTN BFYM8 0.6/ 0.6/ 0.6/ 0.6/ 0.6/ 0.6/ 0.6 :YELLOWSTONE R EDGM8 1.1/ 1.1/ 1.1/ 1.1/ 1.1/ 1.1/ 1.1 BILM8 2.3/ 2.3/ 2.2/ 2.2/ 2.2/ 2.2/ 2.2 :LTL BIGHORN R HRDM8 2.6/ 2.6/ 2.6/ 2.5/ 2.5/ 2.4/ 2.4 :YELLOWSTONE R FRYM8 1.8/ 1.7/ 1.5/ 1.4/ 1.2/ 1.2/ 1.2 :GOOSE CR SHBW4 0.9/ 0.9/ 0.9/ 0.9/ 0.9/ 0.9/ 0.9 :TONGUE R BNYM8 1.0/ 1.0/ 1.0/ 1.0/ 1.0/ 1.0/ 1.0 MICM8 2.0/ 2.0/ 2.0/ 2.0/ 2.0/ 2.0/ 2.0 :YELLOWSTONE R MILM8 3.1/ 3.0/ 2.7/ 2.6/ 2.4/ 2.4/ 2.4 :POWDER R SXXW4 2.4/ 2.4/ 2.4/ 2.4/ 2.4/ 2.4/ 2.3 :YELLOWSTONE R GLNM8 43.0/ 42.9/ 42.6/ 42.5/ 42.3/ 42.2/ 42.2 SIDM8 3.0/ 2.9/ 2.5/ 2.3/ 2.0/ 1.9/ 1.9 :Long-range probabilistic outlooks will be issued near the end of :the month throughout the year. .END $$