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 FRIDAY: JANUARY 19 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 6.4 10.0 64 10.0 12.6 79 Blind Bull Sum 8650 10.9 12.6 87 7.5 10.8 69 Cottonwood Creek 7670 12.2 11.5 106 15.5 13.2 117 East Rim Divide 7930 4.0 6.0 67 5.6 6.6 85 Grand Targhee 9260 19.6 23.2 84 16.4 18.5 89 Granite Creek 6770 5.3 9.1 58 7.1 11.4 62 Grassy Lake 7265 12.6 16.8 75 17.9 19.8 90 Gros Ventre Summit 8750 4.4 7.4 59 6.2 7.0 89 Gunsight Pass 9820 5.9 7.3 81 8.2 7.9 104 Lewis Lake Divide 7850 13.6 16.1 84 18.2 20.1 91 Loomis Park 8240 6.2 8.2 76 7.5 9.6 78 Phillips Bench 8200 10.7 13.4 80 13.4 15.2 88 Salt River Summit 7640 6.9 6.8 101 7.3 8.6 85 Snake River Station 6920 7.5 9.4 80 12.9 13.6 95 Somsen Ranch 6800 8.1 7.0 116 11.9 9.7 123 Spring Creek Divide 9000 11.9 13.0 92 12.5 13.0 96 Thumb Divide 7980 6.7 8.0 84 8.4 9.6 88 Togwotee Pass 9580 9.4 12.9 73 9.9 13.8 72 Triple Peak 8500 10.9 11.8 92 12.7 13.9 91 Two Ocean Plateau 9240 11.9 17.4 68 13.0 15.4 84 Willow Creek 8080 13.9 15.0 93 18.2 18.0 101 Younts Peak 8350 6.3 8.6 73 8.3 8.5 98 ----- ----- Basin Index (%) 82 90 MADISON HEADWATERS IN WYOMING Black Bear 8170 13.8 21.0 66 17.6 21.3 83 Canyon 7870 4.5 -M * 6.8 -M * Madison Plateau 7750 7.8 12.3 63 11.4 14.2 80 West Yellowstone 6700 2.7 6.2 44 7.0 8.2 85 Whiskey Creek 6800 4.8 8.0 60 10.1 11.3 89 ----- ----- Basin Index (%) 61 84 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 7.9 13.0 61 7.6 11.9 64 Canyon 7870 4.5 -M * 6.8 -M * Evening Star 9200 10.3 15.8 65 16.0 16.8 95 Fisher Creek 9100 9.9 18.8 53 12.5 18.7 67 Monument Peak 8850 6.7 12.2 55 9.7 13.3 73 Northeast Entrance 7350 1.6 5.6 29 5.1 7.6 67 Parker Peak 9400 9.3 12.1 77 11.5 12.1 95 Sylvan Lake 8420 7.9 11.2 71 13.0 13.7 95 Thumb Divide 7980 6.7 8.0 84 8.4 9.6 88 Two Ocean Plateau 9240 11.9 17.4 68 13.0 15.4 84 White Mill 8700 7.6 14.2 54 8.8 13.6 65 Wolverine 7650 5.2 6.9 75 8.3 7.6 109 ----- ----- Basin Index (%) 63 81 WIND RIVER Burroughs Creek 8750 5.8 -M * 6.7 -M * Castle Creek 8400 3.7 4.1 90 5.0 5.2 96 Cold Springs 9630 3.8 4.4 86 6.3 5.6 112 Deer Park 9700 7.0 7.2 97 8.9 9.0 99 Hobbs Park 10100 7.5 7.1 106 8.7 6.7 130 Kirwin 9550 6.7 6.4 105 9.1 7.2 126 Little Warm 9370 4.6 5.6 82 7.1 7.4 96 South Pass 9040 6.3 7.1 89 7.8 8.2 95 St. Lawrence Alt 8620 2.1 -M * 5.2 -M * Togwotee Pass 9580 9.4 12.9 73 9.9 13.8 72 Townsend Creek 8700 4.0 4.5 89 7.4 6.2 119 ----- ----- Basin Index (%) 89 101 BIGHORN BASIN Bald Mtn. 9380 7.1 10.2 70 6.8 9.0 76 Bear Trap Meadow 8200 -M 3.5 * 4.2 4.8 88 Bone Springs Div 9350 6.2 9.1 68 7.3 8.6 85 Grave Springs 8550 1.4 4.1 34 3.8 5.2 73 Kirwin 9550 6.7 6.4 105 9.1 7.2 126 Marquette 8760 6.7 3.8 176 9.7 5.4 180 Middle Powder 7760 -M 5.3 * 4.6 5.6 82 Owl Creek 8975 -M 3.0 * -M 3.6 * Powder River Pass 9480 3.0 6.2 48 6.0 7.4 81 Shell Creek 9580 6.8 8.6 79 7.7 8.0 96 Timber Creek 7950 3.9 2.6 150 7.5 4.4 170 ----- ----- Basin Index (%) 82 102 SHOSHONE RIVER Blackwater 9780 11.7 13.7 85 12.1 12.9 94 Evening Star 9200 10.3 15.8 65 16.0 16.8 95 Marquette 8760 6.7 3.8 176 9.7 5.4 180 Sylvan Lake 8420 7.9 11.2 71 13.0 13.7 95 Sylvan Road 7120 3.2 7.2 44 10.1 10.6 95 Younts Peak 8350 6.3 8.6 73 8.3 8.5 98 ----- ----- Basin Index (%) 76 102 POWDER RIVER Bear Trap Meadow 8200 -M 3.5 * 4.2 4.8 88 Cloud Peak Reservoir 9860 6.7 7.7 87 8.5 7.5 113 Grave Springs 8550 1.4 4.1 34 3.8 5.2 73 Hansen Sawmill 8360 1.1 3.8 29 3.9 4.8 81 Middle Powder 7760 -M 5.3 * 4.6 5.6 82 Powder River Pass 9480 3.0 6.2 48 6.0 7.4 81 Soldier Park 8720 1.0 3.3 30 5.5 5.1 108 ----- ----- Basin Index (%) 53 90 TONGUE RIVER Big Goose 7990 -M 4.0 * 6.6 5.6 118 Bone Springs Div 9350 6.2 9.1 68 7.3 8.6 85 Burgess Junction 7880 3.7 5.6 66 7.3 6.8 107 Dome Lake 8880 -M 6.0 * 6.0 7.0 86 Little Goose 8870 3.9 5.0 78 7.2 6.4 112 Sucker Creek 8880 4.8 6.5 74 8.2 7.4 111 Tie Creek 6870 .5 3.1 16 8.3 6.0 138 ----- ----- Basin Index (%) 65 106 BELLE FOURCHE Blind Park 6890 2.3 4.0 58 4.2 5.7 74 Cole Canyon 5910 1.7 2.8 61 -M 5.0 * North Rapid Creek 6130 3.2 3.8 84 -M 4.6 * ----- ----- Basin Index (%) 68 74* CHEYENNE RIVER BASIN Blind Park 6890 2.3 4.0 58 4.2 5.7 74 North Rapid Creek 6130 3.2 3.8 84 -M 4.6 * ----- ----- Basin Index (%) 71 74 UPPER N. PLATTE Arapaho Ridge 10976 -M 12.0 * -M 12.4 * Blackhall Mtn 9839 16.6 15.0 111 18.7 16.1 116 Cinnabar Park 9707 8.1 11.6 70 9.9 13.4 74 Columbine 9167 13.8 12.4 111 15.0 13.3 113 Divide Peak 8730 8.6 10.4 83 12.3 12.2 101 Joe Wright 10158 8.6 10.2 84 12.6 14.0 90 Laprele Creek 8390 3.1 4.7 66 5.8 6.3 92 Med Bow 10512 17.1 -M * 16.8 -M * Never Summer 10323 9.7 10.4 93 7.1 9.6 74 North French Creek 10153 11.4 14.8 77 12.3 15.0 82 Old Battle 9860 14.3 15.9 90 15.1 18.8 80 Rawah 9069 5.7 6.2 92 8.7 9.2 95 Sage Creek Basin 7850 5.7 7.5 76 7.6 7.7 99 Sand Lake 10098 12.7 14.2 89 12.4 12.8 97 South Brush Creek 8495 3.3 6.3 52 5.1 7.8 65 Tower 10620 22.5 22.2 101 21.4 22.4 96 Webber Springs 9260 11.4 11.8 97 12.3 14.9 83 Whiskey Park 9020 15.5 14.2 109 17.3 16.6 104 Willow Creek Pass 9523 7.3 6.8 107 8.5 7.2 118 Zirkel 9338 13.7 15.2 90 15.8 17.0 93 ----- ----- Basin Index (%) 92 93 SWEETWATER Deer Park 9700 7.0 7.2 97 8.9 9.0 99 Larsen Creek 9000 2.6 4.6 57 6.7 7.0 96 South Pass 9040 6.3 7.1 89 7.8 8.2 95 ----- ----- Basin Index (%) 84 97 LOWER N. PLATTE Casper Mtn. 7920 4.4 6.4 69 9.0 7.5 120 Laprele Creek 8390 3.1 4.7 66 5.8 6.3 92 Reno Hill 8430 4.4 6.9 64 8.6 7.9 109 Windy Peak 7915 3.4 3.9 87 5.0 5.6 89 ----- ----- Basin Index (%) 70 104 LARAMIE RIVER Brooklyn Lake 10250 11.2 11.2 100 12.1 11.8 103 Cinnabar Park 9707 8.1 11.6 70 9.9 13.4 74 Crow Creek 8335 1.2 4.5 27 4.3 6.1 70 Deadman Hill 10239 9.2 9.6 96 8.6 9.4 91 Rawah 9069 5.7 6.2 92 8.7 9.2 95 Roach 9740 6.8 8.9 76 8.6 10.6 81 Windy Peak 7915 3.4 3.9 87 5.0 5.6 89 ----- ----- Basin Index (%) 82 87 S. PLATTE Crow Creek 8335 1.2 4.5 27 4.3 6.1 70 ----- ----- Basin Index (%) 27 70 LITTLE SNAKE RIVER Battle Mountain 7498 5.1 6.2 82 9.6 8.8 109 Divide Peak 8730 8.6 10.4 83 12.3 12.2 101 Elk River 8739 9.3 9.4 99 10.6 10.7 99 Elkhead Divide 8800 10.3 -M * 12.6 -M * Little Snake River 8928 14.3 14.0 102 18.1 19.0 95 Old Battle 9860 14.3 15.9 90 15.1 18.8 80 Sage Creek Basin 7850 5.7 7.5 76 7.6 7.7 99 Sandstone RS 8152 8.6 7.0 123 8.8 10.4 85 Whiskey Park 9020 15.5 14.2 109 17.3 16.6 104 ----- ----- Basin Index (%) 96 95 UPPER GREEN RIVER Big Sandy Opening 9080 6.1 7.1 86 6.9 7.2 96 Blind Bull Sum 8650 10.9 12.6 87 7.5 10.8 69 East Rim Divide 7930 4.0 6.0 67 5.6 6.6 85 Elkhart Park G.S. 9400 5.2 7.0 74 6.2 7.4 84 Gros Ventre Summit 8750 4.4 7.4 59 6.2 7.0 89 Gunsight Pass 9820 5.9 7.3 81 8.2 7.9 104 Indian Creek 9425 10.9 12.2 89 10.2 11.2 91 Kendall R.S. 7740 4.0 6.8 59 7.0 8.2 85 Larsen Creek 9000 2.6 4.6 57 6.7 7.0 96 Loomis Park 8240 6.2 8.2 76 7.5 9.6 78 New Fork Lake 8340 4.3 6.1 70 3.0 6.5 46 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 4.8 7.2 67 6.9 7.9 87 Spring Creek Divide 9000 11.9 13.0 92 12.5 13.0 96 Triple Peak 8500 10.9 11.8 92 12.7 13.9 91 ----- ----- Basin Index (%) 79 86 LOWER GREEN RIVER Blacks Fork Jct 8869 6.1 4.3 142 8.4 6.8 124 Buck Pasture 9632 7.9 -M * 9.2 -M * EF Blacks Fork GS 9360 4.0 5.1 78 6.4 6.0 107 Hams Fork 7840 2.5 5.8 43 6.1 6.2 98 Henrys Fork 10182 -M -M * 6.8 -M * Hewinta 9500 5.5 5.0 110 9.0 7.7 117 Hickerson Park 9122 4.1 3.5 117 6.8 5.6 121 Hole-in-Rock 9168 3.9 3.7 105 5.3 5.8 91 Indian Creek 9425 10.9 12.2 89 10.2 11.2 91 Kelley R.S. 8180 8.3 7.4 112 9.1 9.5 96 Spirit Lk 10235 4.5 6.1 74 8.5 8.7 98 Steel Creek Park 10158 7.5 7.3 103 10.0 8.7 115 ----- ----- Basin Index (%) 95 105 UPPER BEAR RIVER Bear River RS 8777 5.2 4.7 111 7.8 6.6 118 Bug Lake 7987 12.7 8.2 155 13.7 9.6 143 Burts Miller Ranch 8000 3.3 3.2 103 7.1 4.8 148 Chalk Creek #1 9171 10.7 10.9 98 12.9 12.4 104 Giveout 6930 4.7 5.0 94 6.7 7.0 96 Hayden Fork 9130 8.7 7.0 124 12.4 10.6 117 Kelley R.S. 8180 8.3 7.4 112 9.1 9.5 96 Lily Lake 9133 7.5 6.4 117 8.6 8.6 100 Monte Cristo 8932 14.2 13.0 109 15.4 13.5 114 Salt River Summit 7640 6.9 6.8 101 7.3 8.6 85 Spring Creek Divide 9000 11.9 13.0 92 12.5 13.0 96 Trial Lake 9992 10.6 10.8 98 11.7 12.1 97 ----- ----- Basin Index (%) 109 108 ----------------------------------------------------------------------------- -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.