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: FEBRUARY 13 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 8.9 12.8 70 12.2 14.9 82 Blind Bull Sum 8650 13.3 16.2 82 9.3 13.1 71 Cottonwood Creek 7670 14.2 14.8 96 17.7 17.0 104 East Rim Divide 7930 5.6 7.6 74 7.0 7.8 90 Grand Targhee 9260 25.0 30.4 82 19.7 23.2 85 Granite Creek 6770 8.0 11.8 68 9.5 13.8 69 Grassy Lake 7265 16.2 22.0 74 21.9 25.1 87 Gros Ventre Summit 8750 6.4 8.4 76 7.9 8.2 96 Gunsight Pass 9820 7.8 8.9 88 10.0 9.8 102 Lewis Lake Divide 7850 17.2 20.6 83 21.8 23.6 92 Loomis Park 8240 7.8 10.8 72 9.1 11.4 80 Phillips Bench 8200 13.9 17.4 80 16.8 19.0 88 Salt River Summit 7640 9.1 8.8 103 9.1 10.8 84 Snake River Station 6920 9.7 12.8 76 15.1 16.1 94 Somsen Ranch 6800 10.2 9.4 109 14.4 11.9 121 Spring Creek Divide 9000 13.5 16.2 83 14.3 16.3 88 Thumb Divide 7980 9.0 10.7 84 10.3 12.2 84 Togwotee Pass 9580 11.8 15.4 77 11.8 16.8 70 Triple Peak 8500 12.9 15.6 83 14.6 16.8 87 Two Ocean Plateau 9240 15.2 20.8 73 16.0 18.1 88 Willow Creek 8080 19.2 19.5 98 22.3 22.7 98 Younts Peak 8350 6.8 9.8 69 8.9 10.3 86 ----- ----- Basin Index (%) 82 88 MADISON HEADWATERS IN WYOMING Black Bear 8170 19.9 25.1 79 23.6 25.0 94 Canyon 7870 6.2 -M * 8.5 -M * Madison Plateau 7750 11.8 14.9 79 15.0 16.0 94 West Yellowstone 6700 4.7 7.8 60 8.7 10.0 87 Whiskey Creek 6800 7.8 10.1 77 13.2 12.8 103 ----- ----- Basin Index (%) 76 95 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 9.1 15.8 58 8.9 14.7 61 Canyon 7870 6.2 -M * 8.5 -M * Evening Star 9200 12.2 18.9 65 17.9 20.4 88 Fisher Creek 9100 12.0 23.3 52 15.0 22.9 66 Monument Peak 8850 8.9 14.4 62 11.7 15.3 76 Northeast Entrance 7350 2.6 7.1 37 6.1 9.4 65 Parker Peak 9400 11.7 14.9 79 13.6 14.2 96 Sylvan Lake 8420 9.6 13.5 71 15.2 16.4 93 Thumb Divide 7980 9.0 10.7 84 10.3 12.2 84 Two Ocean Plateau 9240 15.2 20.8 73 16.0 18.1 88 White Mill 8700 9.6 17.2 56 10.7 16.0 67 Wolverine 7650 6.1 8.8 69 9.1 8.8 103 ----- ----- Basin Index (%) 64 80 WIND RIVER Burroughs Creek 8750 7.1 -M * 7.6 -M * Castle Creek 8400 4.4 5.0 88 5.5 6.3 87 Cold Springs 9630 5.5 5.4 102 8.1 6.5 125 Deer Park 9700 9.9 9.1 109 11.8 11.0 107 Hobbs Park 10100 10.2 8.8 116 11.2 7.8 144 Kirwin 9550 7.9 7.4 107 10.2 8.2 124 Little Warm 9370 6.0 6.8 88 8.4 8.1 104 South Pass 9040 8.5 9.0 94 10.1 10.0 101 St. Lawrence Alt 8620 3.7 -M * 6.8 -M * Togwotee Pass 9580 11.8 15.4 77 11.8 16.8 70 Townsend Creek 8700 5.8 5.8 100 9.2 7.2 128 ----- ----- Basin Index (%) 96 105 BIGHORN BASIN Bald Mtn. 9380 8.7 12.8 68 8.3 10.8 77 Bear Trap Meadow 8200 2.6 4.4 59 5.2 5.5 95 Bone Springs Div 9350 7.4 11.0 67 7.9 10.2 77 Grave Springs 8550 2.6 5.2 50 4.9 6.3 78 Kirwin 9550 7.9 7.4 107 10.2 8.2 124 Marquette 8760 8.4 4.6 183 11.2 6.3 178 Middle Powder 7760 3.6 6.4 56 5.5 6.2 89 Owl Creek 8975 -M 3.8 * -M 4.2 * Powder River Pass 9480 4.1 7.4 55 7.3 8.7 84 Shell Creek 9580 8.2 10.0 82 9.0 9.2 98 Timber Creek 7950 5.4 3.2 169 9.2 5.1 180 ----- ----- Basin Index (%) 81 103 SHOSHONE RIVER Blackwater 9780 13.5 15.9 85 14.0 15.4 91 Evening Star 9200 12.2 18.9 65 17.9 20.4 88 Marquette 8760 8.4 4.6 183 11.2 6.3 178 Sylvan Lake 8420 9.6 13.5 71 15.2 16.4 93 Sylvan Road 7120 4.2 8.6 49 10.7 12.6 85 Younts Peak 8350 6.8 9.8 69 8.9 10.3 86 ----- ----- Basin Index (%) 77 96 POWDER RIVER Bear Trap Meadow 8200 2.6 4.4 59 5.2 5.5 95 Cloud Peak Reservoir 9860 8.0 9.4 85 9.6 8.8 109 Grave Springs 8550 2.6 5.2 50 4.9 6.3 78 Hansen Sawmill 8360 2.5 4.6 54 5.3 5.6 95 Middle Powder 7760 3.6 6.4 56 5.5 6.2 89 Powder River Pass 9480 4.1 7.4 55 7.3 8.7 84 Soldier Park 8720 2.1 4.4 48 6.8 6.3 108 ----- ----- Basin Index (%) 61 94 TONGUE RIVER Big Goose 7990 3.2 5.4 59 7.2 6.9 104 Bone Springs Div 9350 7.4 11.0 67 7.9 10.2 77 Burgess Junction 7880 4.3 7.1 61 7.8 8.0 98 Dome Lake 8880 -M 7.6 * 6.8 8.3 82 Little Goose 8870 4.9 6.6 74 8.2 8.0 102 Sucker Creek 8880 6.1 8.1 75 9.4 9.1 103 Tie Creek 6870 .9 3.6 25 8.7 7.5 116 ----- ----- Basin Index (%) 64 97 BELLE FOURCHE Blind Park 6890 2.4 5.4 44 4.5 7.2 62 Cole Canyon 5910 1.9 4.0 48 3.7 5.6 66 North Rapid Creek 6130 4.1 5.2 79 5.4 5.8 93 ----- ----- Basin Index (%) 58 73 CHEYENNE RIVER BASIN Blind Park 6890 2.4 5.4 44 4.5 7.2 62 North Rapid Creek 6130 4.1 5.2 79 5.4 5.8 93 ----- ----- Basin Index (%) 61 76 UPPER N. PLATTE Arapaho Ridge 10976 14.1 15.5 91 14.4 15.6 92 Blackhall Mtn 9839 19.6 19.8 99 21.3 20.1 106 Cinnabar Park 9707 9.6 14.9 64 11.6 16.7 69 Columbine 9167 16.6 15.8 105 17.0 16.7 102 Divide Peak 8730 11.2 13.6 82 14.9 14.9 100 Joe Wright 10158 10.4 13.6 76 14.4 17.6 82 Laprele Creek 8390 4.0 6.1 66 6.8 7.5 91 Med Bow 10512 20.3 -M * 19.5 -M * Never Summer 10323 11.5 13.4 86 8.7 11.4 76 North French Creek 10153 14.1 18.5 76 14.9 18.1 82 Old Battle 9860 17.2 21.4 80 18.0 23.9 75 Rawah 9069 7.0 8.0 88 10.2 11.2 91 Sage Creek Basin 7850 7.5 9.9 76 9.5 9.5 100 Sand Lake 10098 14.8 17.8 83 14.5 16.4 88 South Brush Creek 8495 5.4 8.0 68 7.0 9.2 76 Tower 10620 26.4 30.0 88 24.9 28.0 89 Webber Springs 9260 13.0 14.6 89 14.1 17.8 79 Whiskey Park 9020 19.4 18.3 106 20.0 19.6 102 Willow Creek Pass 9523 8.8 9.2 96 9.9 9.2 108 Zirkel 9338 15.7 19.8 79 17.8 22.0 81 ----- ----- Basin Index (%) 85 88 SWEETWATER Deer Park 9700 9.9 9.1 109 11.8 11.0 107 Larsen Creek 9000 4.2 7.2 58 8.2 9.2 89 South Pass 9040 8.5 9.0 94 10.1 10.0 101 ----- ----- Basin Index (%) 89 100 LOWER N. PLATTE Casper Mtn. 7920 5.3 8.2 65 9.8 9.0 109 Laprele Creek 8390 4.0 6.1 66 6.8 7.5 91 Reno Hill 8430 5.6 8.7 64 9.5 9.2 103 Windy Peak 7915 4.3 5.0 86 5.8 6.7 87 ----- ----- Basin Index (%) 69 98 LARAMIE RIVER Brooklyn Lake 10250 12.5 14.6 86 13.4 14.4 93 Cinnabar Park 9707 9.6 14.9 64 11.6 16.7 69 Crow Creek 8335 2.0 5.6 36 5.5 7.2 76 Deadman Hill 10239 10.5 11.6 91 9.9 11.8 84 Rawah 9069 7.0 8.0 88 10.2 11.2 91 Roach 9740 7.7 10.9 71 9.7 12.8 76 Windy Peak 7915 4.3 5.0 86 5.8 6.7 87 ----- ----- Basin Index (%) 76 82 S. PLATTE Crow Creek 8335 2.0 5.6 36 5.5 7.2 76 ----- ----- Basin Index (%) 36 76 LITTLE SNAKE RIVER Battle Mountain 7498 7.2 8.2 88 12.0 10.9 110 Divide Peak 8730 11.2 13.6 82 14.9 14.9 100 Elk River 8739 11.9 12.8 93 12.8 13.4 96 Elkhead Divide 8800 14.4 -M * 16.3 -M * Little Snake River 8928 17.7 17.5 101 21.1 23.8 89 Old Battle 9860 17.2 21.4 80 18.0 23.9 75 Sage Creek Basin 7850 7.5 9.9 76 9.5 9.5 100 Sandstone RS 8152 11.1 9.2 121 11.1 12.6 88 Whiskey Park 9020 19.4 18.3 106 20.0 19.6 102 ----- ----- Basin Index (%) 93 93 UPPER GREEN RIVER Big Sandy Opening 9080 7.6 8.9 85 8.5 8.5 100 Blind Bull Sum 8650 13.3 16.2 82 9.3 13.1 71 East Rim Divide 7930 5.6 7.6 74 7.0 7.8 90 Elkhart Park G.S. 9400 6.1 8.4 73 7.5 8.9 84 Gros Ventre Summit 8750 6.4 8.4 76 7.9 8.2 96 Gunsight Pass 9820 7.8 8.9 88 10.0 9.8 102 Indian Creek 9425 13.6 15.7 87 12.3 14.1 87 Kendall R.S. 7740 5.3 8.2 65 8.1 9.4 86 Larsen Creek 9000 4.2 7.2 58 8.2 9.2 89 Loomis Park 8240 7.8 10.8 72 9.1 11.4 80 New Fork Lake 8340 5.5 7.4 74 3.8 7.4 51 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 5.7 8.9 64 7.8 9.4 83 Spring Creek Divide 9000 13.5 16.2 83 14.3 16.3 88 Triple Peak 8500 12.9 15.6 83 14.6 16.8 87 ----- ----- Basin Index (%) 78 85 LOWER GREEN RIVER Blacks Fork Jct 8869 7.7 5.6 138 9.9 8.8 112 Buck Pasture 9632 10.4 -M * 11.3 -M * EF Blacks Fork GS 9360 5.7 7.2 79 7.2 7.2 100 Hams Fork 7840 -M 8.0 * 7.1 7.7 92 Henrys Fork 10182 -M -M * 9.1 -M * Hewinta 9500 7.0 6.2 113 10.5 9.4 112 Hickerson Park 9122 6.2 4.8 129 8.7 6.9 126 Hole-in-Rock 9168 5.6 4.8 117 6.9 6.8 101 Indian Creek 9425 13.6 15.7 87 12.3 14.1 87 Kelley R.S. 8180 10.1 10.0 101 11.2 11.6 97 Spirit Lk 10235 8.8 7.6 116 12.5 10.9 115 Steel Creek Park 10158 9.9 10.0 99 12.2 10.9 112 ----- ----- Basin Index (%) 104 104 UPPER BEAR RIVER Bear River RS 8777 7.1 6.4 111 9.6 8.2 117 Bug Lake 7987 14.8 13.0 114 15.0 12.8 117 Burts Miller Ranch 8000 5.4 4.8 112 8.8 5.4 163 Chalk Creek #1 9171 13.8 14.8 93 16.0 15.8 101 Giveout 6930 6.1 6.7 91 8.0 9.1 88 Hayden Fork 9130 11.4 9.7 118 15.5 14.0 111 Kelley R.S. 8180 10.1 10.0 101 11.2 11.6 97 Lily Lake 9133 9.4 8.8 107 10.9 10.8 101 Monte Cristo 8932 18.0 17.5 103 18.4 17.8 103 Salt River Summit 7640 9.1 8.8 103 9.1 10.8 84 Spring Creek Divide 9000 13.5 16.2 83 14.3 16.3 88 Trial Lake 9992 15.3 14.8 103 16.2 15.8 103 ----- ----- Basin Index (%) 102 103 ----------------------------------------------------------------------------- -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.