Supercell over Laramie
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Wyoming Snow Precipitation Update


United States Natural Resources Water and Climate Center Department of Conservation Portland, Oregon Agriculture Service S N O W - P R E C I P I T A T I O N U P D A T E Based on Mountain Data from NRCS SNOTEL Sites As of TUESDAY: MARCH 5 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 13.9 15.1 92 17.3 17.3 100 Blind Bull Sum 8650 19.5 19.7 99 13.9 15.4 90 Cottonwood Creek 7670 19.1 18.4 104 21.5 20.1 107 East Rim Divide 7930 7.9 9.4 84 9.2 9.6 96 Grand Targhee 9260 32.5 33.6 97 24.2 26.4 92 Granite Creek 6770 12.6 15.0 84 13.5 16.0 84 Grassy Lake 7265 24.0 26.8 90 29.9 29.0 103 Gros Ventre Summit 8750 9.6 10.0 96 10.9 10.0 109 Gunsight Pass 9820 10.7 10.6 101 12.4 11.2 111 Lewis Lake Divide 7850 26.3 25.0 105 30.1 27.0 111 Loomis Park 8240 11.0 13.2 83 12.3 14.0 88 Phillips Bench 8200 21.1 21.6 98 23.6 22.4 105 Salt River Summit 7640 12.9 10.9 118 11.8 12.8 92 Snake River Station 6920 14.7 14.9 99 20.2 18.0 112 Somsen Ranch 6800 15.5 11.0 141 18.8 13.8 136 Spring Creek Divide 9000 19.0 19.8 96 18.8 19.6 96 Thumb Divide 7980 14.7 13.2 111 15.2 14.2 107 Togwotee Pass 9580 16.8 19.6 86 16.3 21.0 78 Triple Peak 8500 19.7 19.6 101 20.6 20.7 100 Two Ocean Plateau 9240 22.5 23.2 97 19.3 21.3 91 Willow Creek 8080 27.2 24.3 112 25.9 26.6 97 Younts Peak 8350 11.9 12.1 98 12.9 11.8 109 ----- ----- Basin Index (%) 99 100 MADISON HEADWATERS IN WYOMING Black Bear 8170 27.2 31.2 87 31.1 31.0 100 Canyon 7870 9.0 -M * 11.7 -M * Madison Plateau 7750 16.5 18.2 91 19.2 20.2 95 West Yellowstone 6700 7.4 9.1 81 11.7 11.4 103 Whiskey Creek 6800 10.9 12.3 89 16.6 16.0 104 ----- ----- Basin Index (%) 88 100 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 12.5 18.2 69 12.2 16.8 73 Canyon 7870 9.0 -M * 11.7 -M * Evening Star 9200 17.8 22.3 80 22.9 24.2 95 Fisher Creek 9100 18.2 26.8 68 20.3 26.1 78 Monument Peak 8850 11.8 16.9 70 14.8 17.6 84 Northeast Entrance 7350 4.6 9.1 51 8.3 11.0 75 Parker Peak 9400 16.5 17.8 93 18.0 16.6 108 Sylvan Lake 8420 13.6 16.2 84 19.4 18.7 104 Thumb Divide 7980 14.7 13.2 111 15.2 14.2 107 Two Ocean Plateau 9240 22.5 23.2 97 19.3 21.3 91 White Mill 8700 13.4 20.0 67 14.3 18.8 76 Wolverine 7650 8.5 10.4 82 11.6 10.3 113 ----- ----- Basin Index (%) 79 90 WIND RIVER Burroughs Creek 8750 10.0 -M * 10.2 -M * Castle Creek 8400 5.7 6.4 89 6.8 7.1 96 Cold Springs 9630 7.3 6.0 122 10.1 7.0 144 Deer Park 9700 13.2 10.5 126 15.3 13.2 116 Hobbs Park 10100 12.7 11.0 115 13.3 9.6 139 Kirwin 9550 10.8 8.7 124 13.4 9.4 143 Little Warm 9370 8.6 8.1 106 10.8 9.7 111 South Pass 9040 11.4 11.9 96 12.9 12.1 107 St. Lawrence Alt 8620 4.6 -M * 8.0 -M * Togwotee Pass 9580 16.8 19.6 86 16.3 21.0 78 Townsend Creek 8700 6.9 7.2 96 10.4 8.2 127 ----- ----- Basin Index (%) 104 112 BIGHORN BASIN Bald Mtn. 9380 10.6 15.2 70 10.2 13.0 78 Bear Trap Meadow 8200 3.3 5.4 61 5.8 6.5 89 Bone Springs Div 9350 9.9 13.2 75 9.8 12.5 78 Grave Springs 8550 3.2 6.9 46 5.5 7.2 76 Kirwin 9550 10.8 8.7 124 13.4 9.4 143 Marquette 8760 9.4 5.4 174 12.4 7.0 177 Middle Powder 7760 4.3 8.0 54 6.2 7.6 82 Owl Creek 8975 4.8 4.5 107 6.6 4.8 138 Powder River Pass 9480 5.2 8.8 59 8.6 9.7 89 Shell Creek 9580 9.9 12.2 81 10.5 10.9 96 Timber Creek 7950 7.1 4.0 178 10.9 5.8 188 ----- ----- Basin Index (%) 85 106 SHOSHONE RIVER Blackwater 9780 18.1 17.9 101 18.9 17.8 106 Evening Star 9200 17.8 22.3 80 22.9 24.2 95 Marquette 8760 9.4 5.4 174 12.4 7.0 177 Sylvan Lake 8420 13.6 16.2 84 19.4 18.7 104 Sylvan Road 7120 7.6 10.2 75 14.1 14.3 99 Younts Peak 8350 11.9 12.1 98 12.9 11.8 109 ----- ----- Basin Index (%) 93 107 POWDER RIVER Bear Trap Meadow 8200 3.3 5.4 61 5.8 6.5 89 Cloud Peak Reservoir 9860 9.6 12.0 80 11.2 10.4 108 Grave Springs 8550 3.2 6.9 46 5.5 7.2 76 Hansen Sawmill 8360 3.6 5.4 67 6.4 6.2 103 Middle Powder 7760 4.3 8.0 54 6.2 7.6 82 Powder River Pass 9480 5.2 8.8 59 8.6 9.7 89 Soldier Park 8720 3.0 5.5 55 7.8 7.2 108 ----- ----- Basin Index (%) 62 94 TONGUE RIVER Big Goose 7990 4.2 6.2 68 8.2 8.0 102 Bone Springs Div 9350 9.9 13.2 75 9.8 12.5 78 Burgess Junction 7880 5.7 8.4 68 9.2 9.4 98 Dome Lake 8880 -M 9.0 * 8.2 9.6 85 Little Goose 8870 5.9 7.6 78 9.0 9.4 96 Sucker Creek 8880 7.4 10.0 74 10.8 10.8 100 Tie Creek 6870 1.8 4.5 40 9.9 8.6 115 ----- ----- Basin Index (%) 70 95 BELLE FOURCHE Blind Park 6890 3.0 6.7 45 5.2 8.8 59 Cole Canyon 5910 2.4 4.8 50 4.2 7.4 57 North Rapid Creek 6130 4.7 6.0 78 6.1 7.4 82 ----- ----- Basin Index (%) 58 66 CHEYENNE RIVER BASIN Blind Park 6890 3.0 6.7 45 5.2 8.8 59 North Rapid Creek 6130 4.7 6.0 78 6.1 7.4 82 ----- ----- Basin Index (%) 61 70 UPPER N. PLATTE Arapaho Ridge 10976 18.1 17.6 103 17.9 17.7 101 Blackhall Mtn 9839 27.8 22.7 122 28.9 23.0 126 Cinnabar Park 9707 14.3 17.3 83 16.8 19.8 85 Columbine 9167 23.4 19.7 119 21.9 19.5 112 Divide Peak 8730 16.9 15.9 106 19.8 17.4 114 Joe Wright 10158 15.3 16.9 91 19.4 21.0 92 Laprele Creek 8390 5.6 7.7 73 8.4 9.0 93 Med Bow 10512 30.0 -M * 27.3 -M * Never Summer 10323 14.9 16.3 91 11.4 14.0 81 North French Creek 10153 21.6 22.4 96 21.6 21.4 101 Old Battle 9860 26.1 25.0 104 25.8 27.4 94 Rawah 9069 9.6 9.4 102 12.7 12.8 99 Sage Creek Basin 7850 11.2 11.5 97 12.6 10.8 117 Sand Lake 10098 21.8 21.6 101 21.0 18.8 112 South Brush Creek 8495 8.5 10.1 84 9.4 11.0 85 Tower 10620 35.4 36.6 97 33.0 32.8 101 Webber Springs 9260 19.6 17.0 115 20.7 20.6 100 Whiskey Park 9020 26.8 22.3 120 25.7 22.6 114 Willow Creek Pass 9523 11.5 10.6 108 12.4 10.8 115 Zirkel 9338 22.7 24.2 94 24.4 26.0 94 ----- ----- Basin Index (%) 102 102 SWEETWATER Deer Park 9700 13.2 10.5 126 15.3 13.2 116 Larsen Creek 9000 6.9 9.6 72 10.7 11.0 97 South Pass 9040 11.4 11.9 96 12.9 12.1 107 ----- ----- Basin Index (%) 98 107 LOWER N. PLATTE Casper Mtn. 7920 6.3 10.2 62 10.8 10.3 105 Laprele Creek 8390 5.6 7.7 73 8.4 9.0 93 Reno Hill 8430 6.8 10.8 63 10.8 10.8 100 Windy Peak 7915 5.6 6.2 90 7.2 7.7 94 ----- ----- Basin Index (%) 70 98 LARAMIE RIVER Brooklyn Lake 10250 19.0 17.2 110 19.5 17.4 112 Cinnabar Park 9707 14.3 17.3 83 16.8 19.8 85 Crow Creek 8335 2.9 6.0 48 7.0 8.1 86 Deadman Hill 10239 14.2 13.6 104 13.4 13.8 97 Rawah 9069 9.6 9.4 102 12.7 12.8 99 Roach 9740 10.3 12.5 82 12.6 14.8 85 Windy Peak 7915 5.6 6.2 90 7.2 7.7 94 ----- ----- Basin Index (%) 92 94 S. PLATTE Crow Creek 8335 2.9 6.0 48 7.0 8.1 86 ----- ----- Basin Index (%) 48 86 LITTLE SNAKE RIVER Battle Mountain 7498 10.9 10.6 103 15.8 12.4 127 Divide Peak 8730 16.9 15.9 106 19.8 17.4 114 Elk River 8739 16.4 15.9 103 16.5 15.6 106 Elkhead Divide 8800 19.9 -M * 20.7 -M * Little Snake River 8928 25.5 22.4 114 28.5 27.2 105 Old Battle 9860 26.1 25.0 104 25.8 27.4 94 Sage Creek Basin 7850 11.2 11.5 97 12.6 10.8 117 Sandstone RS 8152 16.4 10.9 150 15.2 15.0 101 Whiskey Park 9020 26.8 22.3 120 25.7 22.6 114 ----- ----- Basin Index (%) 112 108 UPPER GREEN RIVER Big Sandy Opening 9080 9.6 10.8 89 10.5 10.4 101 Blind Bull Sum 8650 19.5 19.7 99 13.9 15.4 90 East Rim Divide 7930 7.9 9.4 84 9.2 9.6 96 Elkhart Park G.S. 9400 8.2 10.0 82 9.5 10.2 93 Gros Ventre Summit 8750 9.6 10.0 96 10.9 10.0 109 Gunsight Pass 9820 10.7 10.6 101 12.4 11.2 111 Indian Creek 9425 19.1 19.2 99 16.5 16.3 101 Kendall R.S. 7740 8.2 10.2 80 11.0 11.1 99 Larsen Creek 9000 6.9 9.6 72 10.7 11.0 97 Loomis Park 8240 11.0 13.2 83 12.3 14.0 88 New Fork Lake 8340 7.5 9.0 83 -M 8.8 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 8.4 11.0 76 10.6 11.4 93 Spring Creek Divide 9000 19.0 19.8 96 18.8 19.6 96 Triple Peak 8500 19.7 19.6 101 20.6 20.7 100 ----- ----- Basin Index (%) 91 98 LOWER GREEN RIVER Blacks Fork Jct 8869 10.2 6.9 148 12.5 9.8 128 Buck Pasture 9632 13.5 -M * 13.9 -M * EF Blacks Fork GS 9360 7.5 9.4 80 8.8 8.8 100 Hams Fork 7840 -M 9.6 * 9.5 9.0 106 Henrys Fork 10182 -M -M * 11.2 -M * Hewinta 9500 10.9 8.4 130 13.3 10.7 124 Hickerson Park 9122 7.8 6.4 122 10.3 8.3 124 Hole-in-Rock 9168 7.0 5.8 121 8.4 8.0 105 Indian Creek 9425 19.1 19.2 99 16.5 16.3 101 Kelley R.S. 8180 13.9 12.2 114 14.5 13.8 105 Spirit Lk 10235 11.0 9.3 118 14.7 12.8 115 Steel Creek Park 10158 13.2 12.2 108 15.4 13.0 118 ----- ----- Basin Index (%) 112 112 UPPER BEAR RIVER Bear River RS 8777 10.3 7.8 132 12.4 9.4 132 Bug Lake 7987 20.4 15.4 132 19.9 14.7 135 Burts Miller Ranch 8000 8.1 5.5 147 11.2 6.0 187 Chalk Creek #1 9171 19.5 18.4 106 20.9 18.3 114 Giveout 6930 9.4 8.4 112 10.9 10.0 109 Hayden Fork 9130 15.9 12.2 130 19.6 16.4 120 Kelley R.S. 8180 13.9 12.2 114 14.5 13.8 105 Lily Lake 9133 12.0 10.4 115 13.7 12.6 109 Monte Cristo 8932 25.1 21.7 116 24.4 20.6 118 Salt River Summit 7640 12.9 10.9 118 11.8 12.8 92 Spring Creek Divide 9000 19.0 19.8 96 18.8 19.6 96 Trial Lake 9992 22.0 18.1 122 21.9 18.0 122 ----- ----- Basin Index (%) 117 116 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Median (or Average) Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median (or Average) represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median (or Average) value for those sites on this day. The TOTAL PRECIPITATION Percent of Median (or Average) represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Median (or Average) value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1991-2020. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median or average for the day is less than 10% of the maximum median or average value for the year. * Basin - More than half of the stations for a basin with medians (or averages) report missing or invalid data The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100. ---------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values If the Basin Index (%) value is flagged as potentially invalid, care should be taken to evaluate if the value is representative of conditions in the basin. The SNOW WATER EQUIVALENT Percent of Median represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median value for those sites on this day. The TOTAL PRECIPITATION Percent of Average represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Average value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1981-2010. Provisional data, subject to revision. * Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median for the day is less than 10% of the maximum median value for the year. * Basin - More than half of the sites within the basin are flagged with *, preventing the calculation of a meaningful basin index. The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians (for snow water equivalent) or averages (for precipitation) and the resulting fraction multiplied by 100.