Supercell over Laramie
WRDS/SCO may be working remotely so there could be a slight delay returning phone calls. Please email wrds@uwyo.edu if you are in need of information and we will respond as soon as possible

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: MARCH 1 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 12.1 14.8 82 15.6 16.8 93 Blind Bull Sum 8650 17.5 19.4 90 12.0 15.2 79 Cottonwood Creek 7670 17.8 17.6 101 21.1 19.5 108 East Rim Divide 7930 7.2 9.0 80 8.5 9.2 92 Grand Targhee 9260 29.7 33.1 90 23.4 25.8 91 Granite Creek 6770 11.0 14.3 77 12.0 15.8 76 Grassy Lake 7265 20.7 26.0 80 26.6 28.4 94 Gros Ventre Summit 8750 8.3 9.4 88 9.7 9.4 103 Gunsight Pass 9820 9.6 10.4 92 11.6 10.9 106 Lewis Lake Divide 7850 22.6 24.6 92 26.5 26.6 100 Loomis Park 8240 10.0 12.7 79 11.3 13.9 81 Phillips Bench 8200 17.8 20.8 86 20.7 21.8 95 Salt River Summit 7640 11.9 10.8 110 11.4 12.6 90 Snake River Station 6920 12.5 14.6 86 18.1 17.4 104 Somsen Ranch 6800 12.9 10.8 119 16.9 13.4 126 Spring Creek Divide 9000 17.8 19.4 92 17.8 19.2 93 Thumb Divide 7980 12.3 12.9 95 13.2 13.8 96 Togwotee Pass 9580 14.5 18.8 77 14.0 19.8 71 Triple Peak 8500 17.3 19.4 89 18.7 20.6 91 Two Ocean Plateau 9240 19.8 22.6 88 19.2 20.5 94 Willow Creek 8080 24.8 23.6 105 25.9 25.8 100 Younts Peak 8350 10.0 11.8 85 11.2 11.4 98 ----- ----- Basin Index (%) 90 94 MADISON HEADWATERS IN WYOMING Black Bear 8170 24.0 29.9 80 28.3 29.1 97 Canyon 7870 7.6 -M * 10.1 -M * Madison Plateau 7750 14.3 17.4 82 17.1 20.0 86 West Yellowstone 6700 6.3 9.3 68 10.4 11.3 92 Whiskey Creek 6800 9.5 12.2 78 15.2 15.6 97 ----- ----- Basin Index (%) 79 93 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 11.2 17.9 63 10.9 16.5 66 Canyon 7870 7.6 -M * 10.1 -M * Evening Star 9200 16.2 21.8 74 21.6 23.7 91 Fisher Creek 9100 15.8 26.6 59 18.4 25.6 72 Monument Peak 8850 10.6 16.5 64 13.5 17.1 79 Northeast Entrance 7350 3.7 8.6 43 7.2 10.8 67 Parker Peak 9400 15.1 17.2 88 16.9 15.7 108 Sylvan Lake 8420 12.2 15.7 78 18.0 18.4 98 Thumb Divide 7980 12.3 12.9 95 13.2 13.8 96 Two Ocean Plateau 9240 19.8 22.6 88 19.2 20.5 94 White Mill 8700 11.7 19.0 62 12.8 18.4 70 Wolverine 7650 7.9 9.8 81 11.0 10.2 108 ----- ----- Basin Index (%) 72 85 WIND RIVER Burroughs Creek 8750 8.7 -M * 9.0 -M * Castle Creek 8400 5.3 6.2 85 6.4 6.9 93 Cold Springs 9630 6.2 5.7 109 8.8 6.9 128 Deer Park 9700 12.4 10.4 119 14.7 13.1 112 Hobbs Park 10100 11.6 10.1 115 12.5 8.8 142 Kirwin 9550 9.3 8.6 108 11.8 9.1 130 Little Warm 9370 7.2 7.8 92 9.8 9.4 104 South Pass 9040 10.8 11.3 96 12.6 11.4 111 St. Lawrence Alt 8620 4.1 -M * 7.4 -M * Togwotee Pass 9580 14.5 18.8 77 14.0 19.8 71 Townsend Creek 8700 6.6 6.5 102 10.1 8.1 125 ----- ----- Basin Index (%) 98 108 BIGHORN BASIN Bald Mtn. 9380 9.4 14.8 64 9.1 12.8 71 Bear Trap Meadow 8200 3.1 5.0 62 5.9 6.2 95 Bone Springs Div 9350 8.6 12.8 67 8.7 12.4 70 Grave Springs 8550 3.2 6.6 48 5.4 6.8 79 Kirwin 9550 9.3 8.6 108 11.8 9.1 130 Marquette 8760 8.9 5.2 171 12.0 6.7 179 Middle Powder 7760 4.2 7.8 54 6.1 7.0 87 Owl Creek 8975 -M 4.3 * -M 4.8 * Powder River Pass 9480 4.9 8.6 57 8.2 9.6 85 Shell Creek 9580 9.1 11.8 77 9.9 10.8 92 Timber Creek 7950 6.1 4.0 152 10.2 5.6 182 ----- ----- Basin Index (%) 78 100 SHOSHONE RIVER Blackwater 9780 16.7 17.2 97 17.6 17.0 104 Evening Star 9200 16.2 21.8 74 21.6 23.7 91 Marquette 8760 8.9 5.2 171 12.0 6.7 179 Sylvan Lake 8420 12.2 15.7 78 18.0 18.4 98 Sylvan Road 7120 6.2 10.2 61 12.6 14.0 90 Younts Peak 8350 10.0 11.8 85 11.2 11.4 98 ----- ----- Basin Index (%) 86 102 POWDER RIVER Bear Trap Meadow 8200 3.1 5.0 62 5.9 6.2 95 Cloud Peak Reservoir 9860 8.8 11.6 76 10.4 10.2 102 Grave Springs 8550 3.2 6.6 48 5.4 6.8 79 Hansen Sawmill 8360 3.4 5.4 63 6.2 6.2 100 Middle Powder 7760 4.2 7.8 54 6.1 7.0 87 Powder River Pass 9480 4.9 8.6 57 8.2 9.6 85 Soldier Park 8720 2.9 5.2 56 7.7 7.0 110 ----- ----- Basin Index (%) 61 94 TONGUE RIVER Big Goose 7990 3.9 6.0 65 7.7 7.8 99 Bone Springs Div 9350 8.6 12.8 67 8.7 12.4 70 Burgess Junction 7880 4.9 8.2 60 8.4 9.2 91 Dome Lake 8880 -M 8.8 * 7.7 9.4 82 Little Goose 8870 5.5 7.4 74 8.9 9.3 96 Sucker Creek 8880 6.9 9.5 73 10.2 10.6 96 Tie Creek 6870 1.2 4.4 27 9.4 8.4 112 ----- ----- Basin Index (%) 64 91 BELLE FOURCHE Blind Park 6890 2.9 6.6 44 4.9 8.8 56 Cole Canyon 5910 2.2 4.7 47 4.3 7.2 60 North Rapid Creek 6130 4.6 5.8 79 5.9 7.2 82 ----- ----- Basin Index (%) 57 65 CHEYENNE RIVER BASIN Blind Park 6890 2.9 6.6 44 4.9 8.8 56 North Rapid Creek 6130 4.6 5.8 79 5.9 7.2 82 ----- ----- Basin Index (%) 60 68 UPPER N. PLATTE Arapaho Ridge 10976 16.4 17.2 95 16.4 17.0 96 Blackhall Mtn 9839 25.9 22.1 117 27.0 22.2 122 Cinnabar Park 9707 13.3 16.8 79 15.6 19.5 80 Columbine 9167 21.2 18.9 112 20.6 19.0 108 Divide Peak 8730 15.6 15.2 103 19.0 16.9 112 Joe Wright 10158 13.4 16.3 82 17.5 20.4 86 Laprele Creek 8390 5.6 7.2 78 8.4 8.4 100 Med Bow 10512 28.0 -M * 25.8 -M * Never Summer 10323 13.5 16.0 84 10.0 13.4 75 North French Creek 10153 19.9 22.1 90 20.2 21.3 95 Old Battle 9860 24.4 24.2 101 24.9 27.2 92 Rawah 9069 8.5 9.0 94 11.6 12.4 94 Sage Creek Basin 7850 10.7 11.4 94 12.1 10.7 113 Sand Lake 10098 20.4 21.2 96 19.9 18.2 109 South Brush Creek 8495 7.6 9.4 81 8.8 10.8 81 Tower 10620 33.2 35.2 94 31.2 32.8 95 Webber Springs 9260 18.1 16.7 108 19.4 20.2 96 Whiskey Park 9020 25.0 21.4 117 24.3 22.0 110 Willow Creek Pass 9523 10.1 10.6 95 11.2 10.6 106 Zirkel 9338 21.1 23.1 91 23.0 24.8 93 ----- ----- Basin Index (%) 97 98 SWEETWATER Deer Park 9700 12.4 10.4 119 14.7 13.1 112 Larsen Creek 9000 7.0 9.5 74 10.6 10.8 98 South Pass 9040 10.8 11.3 96 12.6 11.4 111 ----- ----- Basin Index (%) 97 107 LOWER N. PLATTE Casper Mtn. 7920 6.2 9.6 65 10.8 10.2 106 Laprele Creek 8390 5.6 7.2 78 8.4 8.4 100 Reno Hill 8430 7.0 10.2 69 10.8 10.7 101 Windy Peak 7915 5.8 6.0 97 7.2 7.4 97 ----- ----- Basin Index (%) 75 101 LARAMIE RIVER Brooklyn Lake 10250 17.8 16.5 108 18.5 17.0 109 Cinnabar Park 9707 13.3 16.8 79 15.6 19.5 80 Crow Creek 8335 2.6 5.9 44 6.6 7.8 85 Deadman Hill 10239 12.7 13.3 95 12.0 13.0 92 Rawah 9069 8.5 9.0 94 11.6 12.4 94 Roach 9740 9.4 12.3 76 11.5 14.8 78 Windy Peak 7915 5.8 6.0 97 7.2 7.4 97 ----- ----- Basin Index (%) 88 90 S. PLATTE Crow Creek 8335 2.6 5.9 44 6.6 7.8 85 ----- ----- Basin Index (%) 44 85 LITTLE SNAKE RIVER Battle Mountain 7498 10.1 10.2 99 14.8 12.2 121 Divide Peak 8730 15.6 15.2 103 19.0 16.9 112 Elk River 8739 14.8 15.1 98 15.3 15.0 102 Elkhead Divide 8800 18.4 -M * 19.6 -M * Little Snake River 8928 23.8 21.8 109 27.0 27.0 100 Old Battle 9860 24.4 24.2 101 24.9 27.2 92 Sage Creek Basin 7850 10.7 11.4 94 12.1 10.7 113 Sandstone RS 8152 15.2 10.3 148 14.4 14.8 97 Whiskey Park 9020 25.0 21.4 117 24.3 22.0 110 ----- ----- Basin Index (%) 108 104 UPPER GREEN RIVER Big Sandy Opening 9080 9.6 10.2 94 10.4 10.0 104 Blind Bull Sum 8650 17.5 19.4 90 12.0 15.2 79 East Rim Divide 7930 7.2 9.0 80 8.5 9.2 92 Elkhart Park G.S. 9400 7.7 9.6 80 8.9 10.0 89 Gros Ventre Summit 8750 8.3 9.4 88 9.7 9.4 103 Gunsight Pass 9820 9.6 10.4 92 11.6 10.9 106 Indian Creek 9425 18.0 18.9 95 15.8 16.0 99 Kendall R.S. 7740 7.4 9.8 76 10.1 10.6 95 Larsen Creek 9000 7.0 9.5 74 10.6 10.8 98 Loomis Park 8240 10.0 12.7 79 11.3 13.9 81 New Fork Lake 8340 6.9 8.7 79 -M 8.3 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 7.9 10.8 73 10.0 11.2 89 Spring Creek Divide 9000 17.8 19.4 92 17.8 19.2 93 Triple Peak 8500 17.3 19.4 89 18.7 20.6 91 ----- ----- Basin Index (%) 86 93 LOWER GREEN RIVER Blacks Fork Jct 8869 9.5 6.7 142 11.6 9.6 121 Buck Pasture 9632 12.2 -M * 12.9 -M * EF Blacks Fork GS 9360 7.2 8.9 81 8.4 8.6 98 Hams Fork 7840 -M 9.2 * 9.1 8.7 105 Henrys Fork 10182 -M -M * 10.2 -M * Hewinta 9500 9.8 8.0 122 12.5 10.5 119 Hickerson Park 9122 7.3 6.1 120 9.6 8.2 117 Hole-in-Rock 9168 6.5 5.7 114 7.9 7.6 104 Indian Creek 9425 18.0 18.9 95 15.8 16.0 99 Kelley R.S. 8180 13.3 12.0 111 14.0 13.4 104 Spirit Lk 10235 10.2 9.3 110 13.8 12.6 110 Steel Creek Park 10158 12.2 11.3 108 14.5 12.7 114 ----- ----- Basin Index (%) 108 109 UPPER BEAR RIVER Bear River RS 8777 9.4 7.6 124 11.5 9.3 124 Bug Lake 7987 19.4 14.8 131 19.0 14.6 130 Burts Miller Ranch 8000 7.4 5.3 140 10.7 5.7 188 Chalk Creek #1 9171 17.9 17.8 101 19.6 17.7 111 Giveout 6930 8.6 7.9 109 10.3 9.8 105 Hayden Fork 9130 14.4 11.8 122 18.3 16.2 113 Kelley R.S. 8180 13.3 12.0 111 14.0 13.4 104 Lily Lake 9133 11.5 10.1 114 12.8 12.3 104 Monte Cristo 8932 23.6 20.6 115 23.0 20.3 113 Salt River Summit 7640 11.9 10.8 110 11.4 12.6 90 Spring Creek Divide 9000 17.8 19.4 92 17.8 19.2 93 Trial Lake 9992 20.1 17.5 115 20.2 17.8 113 ----- ----- Basin Index (%) 113 112 ----------------------------------------------------------------------------- -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.