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: MARCH 29 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 15.8 16.3 97 19.9 19.5 102 Blind Bull Sum 8650 22.9 23.6 97 15.9 17.4 91 Cottonwood Creek 7670 20.8 21.1 99 24.9 24.2 103 East Rim Divide 7930 8.7 10.2 85 10.1 10.7 94 Grand Targhee 9260 36.9 39.6 93 25.7 29.4 87 Granite Creek 6770 14.6 15.4 95 15.4 17.2 90 Grassy Lake 7265 28.2 31.3 90 33.6 33.2 101 Gros Ventre Summit 8750 11.2 12.3 91 12.8 11.8 108 Gunsight Pass 9820 12.1 12.5 97 13.6 13.2 103 Lewis Lake Divide 7850 31.2 29.6 105 34.7 31.6 110 Loomis Park 8240 11.8 15.0 79 14.1 16.4 86 Phillips Bench 8200 24.1 25.6 94 26.9 26.0 103 Salt River Summit 7640 15.5 13.0 119 14.3 14.9 96 Snake River Station 6920 16.1 16.5 98 22.5 21.2 106 Somsen Ranch 6800 17.4 11.8 147 20.6 16.0 129 Spring Creek Divide 9000 -M 23.9 * -M 22.6 * Thumb Divide 7980 16.7 15.6 107 17.6 16.7 105 Togwotee Pass 9580 19.1 22.8 84 18.6 23.8 78 Triple Peak 8500 22.7 22.2 102 22.8 24.4 93 Two Ocean Plateau 9240 26.5 27.8 95 25.1 25.2 100 Willow Creek 8080 32.8 28.8 114 33.2 31.2 106 Younts Peak 8350 14.2 14.1 101 14.8 14.1 105 ----- ----- Basin Index (%) 99 100 MADISON HEADWATERS IN WYOMING Black Bear 8170 32.6 36.8 89 36.6 34.7 105 Canyon 7870 10.8 -M * 13.4 -M * Madison Plateau 7750 20.0 21.5 93 22.4 23.0 97 West Yellowstone 6700 8.9 10.2 87 13.5 13.4 101 Whiskey Creek 6800 13.5 15.0 90 19.6 18.7 105 ----- ----- Basin Index (%) 90 103 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 14.6 21.0 70 14.2 19.2 74 Canyon 7870 10.8 -M * 13.4 -M * Evening Star 9200 20.3 24.2 84 25.6 26.7 96 Fisher Creek 9100 21.8 31.0 70 24.4 31.2 78 Monument Peak 8850 14.4 19.4 74 17.4 20.2 86 Northeast Entrance 7350 5.8 9.6 60 9.9 12.4 80 Parker Peak 9400 19.6 20.0 98 21.1 19.1 110 Sylvan Lake 8420 15.7 19.0 83 22.0 21.6 102 Thumb Divide 7980 16.7 15.6 107 17.6 16.7 105 Two Ocean Plateau 9240 26.5 27.8 95 25.1 25.2 100 White Mill 8700 16.4 23.2 71 17.2 21.8 79 Wolverine 7650 9.4 10.9 86 13.0 11.8 110 ----- ----- Basin Index (%) 82 92 WIND RIVER Burroughs Creek 8750 11.4 -M * 11.4 -M * Castle Creek 8400 6.4 6.7 96 7.6 8.2 93 Cold Springs 9630 8.4 7.2 117 10.9 8.2 133 Deer Park 9700 17.1 14.0 122 19.4 16.5 118 Hobbs Park 10100 15.9 13.2 120 16.1 12.0 134 Kirwin 9550 13.1 10.0 131 15.4 11.0 140 Little Warm 9370 9.6 10.0 96 12.5 11.4 110 South Pass 9040 14.9 14.3 104 16.6 14.7 113 St. Lawrence Alt 8620 6.2 -M * 9.6 -M * Togwotee Pass 9580 19.1 22.8 84 18.6 23.8 78 Townsend Creek 8700 9.7 8.6 113 13.3 10.0 133 ----- ----- Basin Index (%) 107 113 BIGHORN BASIN Bald Mtn. 9380 12.2 17.8 69 11.5 15.3 75 Bear Trap Meadow 8200 4.0 6.0 67 7.1 7.5 95 Bone Springs Div 9350 11.9 16.0 74 11.2 14.6 77 Grave Springs 8550 4.0 8.0 50 6.3 8.8 72 Kirwin 9550 13.1 10.0 131 15.4 11.0 140 Marquette 8760 11.5 6.8 169 14.5 8.2 177 Middle Powder 7760 5.3 10.1 52 6.9 9.2 75 Owl Creek 8975 5.2 5.2 100 6.7 5.8 116 Powder River Pass 9480 -M 10.4 * 9.6 11.8 81 Shell Creek 9580 11.0 14.4 76 11.7 13.0 90 Timber Creek 7950 7.7 4.2 183 11.8 7.5 157 ----- ----- Basin Index (%) 87 100 SHOSHONE RIVER Blackwater 9780 21.6 21.4 101 22.4 20.6 109 Evening Star 9200 20.3 24.2 84 25.6 26.7 96 Marquette 8760 11.5 6.8 169 14.5 8.2 177 Sylvan Lake 8420 15.7 19.0 83 22.0 21.6 102 Sylvan Road 7120 7.6 10.9 70 14.9 15.4 97 Younts Peak 8350 14.2 14.1 101 14.8 14.1 105 ----- ----- Basin Index (%) 94 107 POWDER RIVER Bear Trap Meadow 8200 4.0 6.0 67 7.1 7.5 95 Cloud Peak Reservoir 9860 10.9 14.0 78 12.5 12.4 101 Grave Springs 8550 4.0 8.0 50 6.3 8.8 72 Hansen Sawmill 8360 4.9 6.0 82 7.8 7.8 100 Middle Powder 7760 5.3 10.1 52 6.9 9.2 75 Powder River Pass 9480 -M 10.4 * 9.6 11.8 81 Soldier Park 8720 3.8 6.8 56 8.7 8.6 101 ----- ----- Basin Index (%) 65 89 TONGUE RIVER Big Goose 7990 5.6 7.8 72 9.5 9.3 102 Bone Springs Div 9350 11.9 16.0 74 11.2 14.6 77 Burgess Junction 7880 6.9 9.8 70 10.3 10.8 95 Dome Lake 8880 -M 10.8 * 9.9 11.8 84 Little Goose 8870 7.5 9.2 82 10.8 11.2 96 Sucker Creek 8880 8.8 11.4 77 12.5 12.7 98 Tie Creek 6870 2.1 4.7 45 11.0 9.9 111 ----- ----- Basin Index (%) 73 94 BELLE FOURCHE Blind Park 6890 .0 7.0 0 5.9 10.4 57 Cole Canyon 5910 1.9 5.4 35 5.0 8.1 62 North Rapid Creek 6130 4.8 6.6 73 6.5 8.3 78 ----- ----- Basin Index (%) 35 65 CHEYENNE RIVER BASIN Blind Park 6890 .0 7.0 0 5.9 10.4 57 North Rapid Creek 6130 4.8 6.6 73 6.5 8.3 78 ----- ----- Basin Index (%) 35 66 UPPER N. PLATTE Arapaho Ridge 10976 20.3 20.5 99 20.2 20.6 98 Blackhall Mtn 9839 30.7 28.9 106 32.6 27.8 117 Cinnabar Park 9707 19.4 19.4 100 21.8 22.3 98 Columbine 9167 26.3 21.8 121 24.7 22.9 108 Divide Peak 8730 20.2 18.4 110 22.9 20.6 111 Joe Wright 10158 18.2 19.5 93 22.2 24.6 90 Laprele Creek 8390 6.8 9.2 74 10.0 11.0 91 Med Bow 10512 35.8 -M * 30.9 -M * Never Summer 10323 17.6 19.1 92 13.6 16.2 84 North French Creek 10153 25.1 26.5 95 25.2 24.8 102 Old Battle 9860 30.6 28.3 108 30.6 31.1 98 Rawah 9069 12.1 10.4 116 15.3 14.6 105 Sage Creek Basin 7850 14.9 12.5 119 14.4 12.3 117 Sand Lake 10098 28.0 25.3 111 27.0 23.0 117 South Brush Creek 8495 9.9 11.4 87 11.3 12.7 89 Tower 10620 39.6 41.2 96 36.2 37.6 96 Webber Springs 9260 22.5 21.2 106 24.2 24.2 100 Whiskey Park 9020 30.5 25.4 120 28.4 26.2 108 Willow Creek Pass 9523 13.4 12.4 108 14.1 13.0 108 Zirkel 9338 25.1 27.2 92 27.3 29.4 93 ----- ----- Basin Index (%) 103 102 SWEETWATER Deer Park 9700 17.1 14.0 122 19.4 16.5 118 Larsen Creek 9000 8.6 10.6 81 13.4 12.7 106 South Pass 9040 14.9 14.3 104 16.6 14.7 113 ----- ----- Basin Index (%) 104 113 LOWER N. PLATTE Casper Mtn. 7920 9.0 12.4 73 12.8 12.6 102 Laprele Creek 8390 6.8 9.2 74 10.0 11.0 91 Reno Hill 8430 8.8 12.9 68 12.5 14.0 89 Windy Peak 7915 7.9 7.8 101 9.2 9.3 99 ----- ----- Basin Index (%) 77 95 LARAMIE RIVER Brooklyn Lake 10250 23.4 20.2 116 23.8 20.4 117 Cinnabar Park 9707 19.4 19.4 100 21.8 22.3 98 Crow Creek 8335 5.4 5.7 95 9.6 9.9 97 Deadman Hill 10239 18.5 15.6 119 17.4 16.5 105 Rawah 9069 12.1 10.4 116 15.3 14.6 105 Roach 9740 14.3 14.8 97 16.5 17.9 92 Windy Peak 7915 7.9 7.8 101 9.2 9.3 99 ----- ----- Basin Index (%) 108 102 S. PLATTE Crow Creek 8335 5.4 5.7 95 9.6 9.9 97 ----- ----- Basin Index (%) 95 97 LITTLE SNAKE RIVER Battle Mountain 7498 11.9 11.0 108 18.2 14.3 127 Divide Peak 8730 20.2 18.4 110 22.9 20.6 111 Elk River 8739 18.0 17.6 102 18.8 17.8 106 Elkhead Divide 8800 22.1 -M * 22.7 -M * Little Snake River 8928 27.9 25.3 110 31.3 30.4 103 Old Battle 9860 30.6 28.3 108 30.6 31.1 98 Sage Creek Basin 7850 14.9 12.5 119 14.4 12.3 117 Sandstone RS 8152 18.1 12.4 146 17.3 17.0 102 Whiskey Park 9020 30.5 25.4 120 28.4 26.2 108 ----- ----- Basin Index (%) 114 107 UPPER GREEN RIVER Big Sandy Opening 9080 12.3 12.7 97 13.2 12.1 109 Blind Bull Sum 8650 22.9 23.6 97 15.9 17.4 91 East Rim Divide 7930 8.7 10.2 85 10.1 10.7 94 Elkhart Park G.S. 9400 9.8 12.0 82 10.7 12.2 88 Gros Ventre Summit 8750 11.2 12.3 91 12.8 11.8 108 Gunsight Pass 9820 12.1 12.5 97 13.6 13.2 103 Indian Creek 9425 22.4 22.3 100 19.0 18.6 102 Kendall R.S. 7740 8.9 11.2 79 12.2 12.8 95 Larsen Creek 9000 8.6 10.6 81 13.4 12.7 106 Loomis Park 8240 11.8 15.0 79 14.1 16.4 86 New Fork Lake 8340 8.2 10.2 80 -M 10.2 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 9.3 12.4 75 11.8 13.4 88 Spring Creek Divide 9000 -M 23.9 * -M 22.6 * Triple Peak 8500 22.7 22.2 102 22.8 24.4 93 ----- ----- Basin Index (%) 90 97 LOWER GREEN RIVER Blacks Fork Jct 8869 11.2 8.5 132 13.6 11.5 118 Buck Pasture 9632 15.1 -M * 15.4 -M * EF Blacks Fork GS 9360 11.5 11.1 104 9.8 10.1 97 Hams Fork 7840 -M 10.6 * 10.8 10.6 102 Henrys Fork 10182 -M -M * 13.2 -M * Hewinta 9500 12.5 10.0 125 14.5 12.3 118 Hickerson Park 9122 11.1 7.4 150 13.4 9.5 141 Hole-in-Rock 9168 8.9 6.8 131 10.5 9.2 114 Indian Creek 9425 22.4 22.3 100 19.0 18.6 102 Kelley R.S. 8180 16.1 14.3 113 16.7 15.4 108 Spirit Lk 10235 14.5 11.8 123 17.9 15.6 115 Steel Creek Park 10158 15.0 13.8 109 17.2 15.2 113 ----- ----- Basin Index (%) 116 112 UPPER BEAR RIVER Bear River RS 8777 12.2 9.1 134 14.0 11.2 125 Bug Lake 7987 22.2 17.9 124 22.2 17.0 131 Burts Miller Ranch 8000 8.9 5.4 165 12.4 7.1 175 Chalk Creek #1 9171 23.5 22.0 107 24.0 21.8 110 Giveout 6930 10.6 8.2 129 12.3 11.2 110 Hayden Fork 9130 18.4 14.4 128 22.1 19.4 114 Kelley R.S. 8180 16.1 14.3 113 16.7 15.4 108 Lily Lake 9133 13.7 12.0 114 15.4 14.3 108 Monte Cristo 8932 28.4 25.4 112 27.1 24.4 111 Salt River Summit 7640 15.5 13.0 119 14.3 14.9 96 Spring Creek Divide 9000 -M 23.9 * -M 22.6 * Trial Lake 9992 26.6 21.3 125 25.1 21.2 118 ----- ----- Basin Index (%) 120 116 ----------------------------------------------------------------------------- -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.