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 SUNDAY: MARCH 3 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 13.6 15.0 91 17.2 16.9 102 Blind Bull Sum 8650 19.1 19.5 98 13.3 15.2 88 Cottonwood Creek 7670 18.9 17.8 106 21.4 19.8 108 East Rim Divide 7930 7.6 9.0 84 8.8 9.2 96 Grand Targhee 9260 32.6 33.2 98 23.8 26.1 91 Granite Creek 6770 12.4 14.4 86 13.3 16.0 83 Grassy Lake 7265 23.4 26.4 89 29.4 28.7 102 Gros Ventre Summit 8750 9.5 9.6 99 10.8 9.6 112 Gunsight Pass 9820 10.6 10.6 100 12.2 11.2 109 Lewis Lake Divide 7850 25.7 24.6 104 29.5 26.8 110 Loomis Park 8240 10.7 12.8 84 12.0 13.9 86 Phillips Bench 8200 20.5 21.0 98 23.1 22.0 105 Salt River Summit 7640 12.6 10.8 117 11.9 12.8 93 Snake River Station 6920 14.6 14.6 100 20.2 17.4 116 Somsen Ranch 6800 15.0 10.9 138 18.4 13.4 137 Spring Creek Divide 9000 18.9 19.6 96 18.6 19.2 97 Thumb Divide 7980 14.5 13.0 112 15.0 13.8 109 Togwotee Pass 9580 16.6 18.8 88 16.0 19.9 80 Triple Peak 8500 19.0 19.6 97 20.1 20.6 98 Two Ocean Plateau 9240 22.0 22.8 96 19.3 20.6 94 Willow Creek 8080 26.9 23.8 113 25.9 25.9 100 Younts Peak 8350 11.8 11.8 100 12.7 11.7 109 ----- ----- Basin Index (%) 99 101 MADISON HEADWATERS IN WYOMING Black Bear 8170 26.6 30.2 88 30.5 30.0 102 Canyon 7870 8.8 -M * 11.5 -M * Madison Plateau 7750 16.1 17.6 91 18.7 20.1 93 West Yellowstone 6700 7.3 9.3 78 -M 11.3 * Whiskey Creek 6800 10.8 12.2 89 16.4 15.8 104 ----- ----- Basin Index (%) 88 100 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 12.4 18.0 69 12.0 16.6 72 Canyon 7870 8.8 -M * 11.5 -M * Evening Star 9200 17.6 22.0 80 22.6 23.9 95 Fisher Creek 9100 17.9 26.7 67 20.0 25.8 78 Monument Peak 8850 11.7 16.6 70 14.7 17.2 85 Northeast Entrance 7350 4.6 8.8 52 8.2 10.9 75 Parker Peak 9400 16.4 17.4 94 17.8 15.8 113 Sylvan Lake 8420 13.4 15.8 85 19.2 18.5 104 Thumb Divide 7980 14.5 13.0 112 15.0 13.8 109 Two Ocean Plateau 9240 22.0 22.8 96 19.3 20.6 94 White Mill 8700 13.2 19.2 69 14.2 18.8 76 Wolverine 7650 8.5 9.8 87 11.5 10.2 113 ----- ----- Basin Index (%) 80 91 WIND RIVER Burroughs Creek 8750 9.9 -M * 10.0 -M * Castle Creek 8400 5.7 6.3 90 6.8 7.0 97 Cold Springs 9630 7.2 5.8 124 10.0 7.0 143 Deer Park 9700 12.8 10.4 123 15.0 13.1 115 Hobbs Park 10100 12.5 10.6 118 13.1 9.0 146 Kirwin 9550 10.8 8.6 126 13.3 9.1 146 Little Warm 9370 8.5 7.8 109 11.0 9.6 115 South Pass 9040 11.0 11.4 96 12.8 11.8 108 St. Lawrence Alt 8620 4.6 -M * 8.0 -M * Togwotee Pass 9580 16.6 18.8 88 16.0 19.9 80 Townsend Creek 8700 6.8 6.8 100 10.3 8.1 127 ----- ----- Basin Index (%) 106 114 BIGHORN BASIN Bald Mtn. 9380 10.4 14.9 70 9.9 12.9 77 Bear Trap Meadow 8200 3.3 5.2 63 5.9 6.4 92 Bone Springs Div 9350 9.4 13.0 72 9.4 12.4 76 Grave Springs 8550 3.3 6.6 50 5.6 6.8 82 Kirwin 9550 10.8 8.6 126 13.3 9.1 146 Marquette 8760 9.5 5.4 176 12.5 6.8 184 Middle Powder 7760 4.4 8.0 55 6.2 7.4 84 Owl Creek 8975 -M 4.4 * -M 4.8 * Powder River Pass 9480 5.1 8.6 59 8.5 9.6 89 Shell Creek 9580 9.6 11.9 81 10.3 10.8 95 Timber Creek 7950 7.1 4.0 178 10.9 5.6 195 ----- ----- Basin Index (%) 85 105 SHOSHONE RIVER Blackwater 9780 17.9 17.4 103 18.7 17.1 109 Evening Star 9200 17.6 22.0 80 22.6 23.9 95 Marquette 8760 9.5 5.4 176 12.5 6.8 184 Sylvan Lake 8420 13.4 15.8 85 19.2 18.5 104 Sylvan Road 7120 7.5 10.2 74 13.9 14.2 98 Younts Peak 8350 11.8 11.8 100 12.7 11.7 109 ----- ----- Basin Index (%) 94 108 POWDER RIVER Bear Trap Meadow 8200 3.3 5.2 63 5.9 6.4 92 Cloud Peak Reservoir 9860 9.6 11.6 83 11.2 10.2 110 Grave Springs 8550 3.3 6.6 50 5.6 6.8 82 Hansen Sawmill 8360 3.7 5.3 70 6.3 6.2 102 Middle Powder 7760 4.4 8.0 55 6.2 7.4 84 Powder River Pass 9480 5.1 8.6 59 8.5 9.6 89 Soldier Park 8720 3.2 5.2 62 7.9 7.0 113 ----- ----- Basin Index (%) 65 96 TONGUE RIVER Big Goose 7990 4.2 6.0 70 8.1 7.9 103 Bone Springs Div 9350 9.4 13.0 72 9.4 12.4 76 Burgess Junction 7880 5.7 8.3 69 9.2 9.4 98 Dome Lake 8880 -M 8.8 * 8.0 9.5 84 Little Goose 8870 5.9 7.6 78 9.2 9.4 98 Sucker Creek 8880 7.4 9.9 75 10.8 10.8 100 Tie Creek 6870 1.7 4.5 38 9.9 8.6 115 ----- ----- Basin Index (%) 70 95 BELLE FOURCHE Blind Park 6890 2.7 6.7 40 4.9 8.8 56 Cole Canyon 5910 2.4 4.7 51 4.2 7.4 57 North Rapid Creek 6130 4.7 6.0 78 5.9 7.2 82 ----- ----- Basin Index (%) 56 64 CHEYENNE RIVER BASIN Blind Park 6890 2.7 6.7 40 4.9 8.8 56 North Rapid Creek 6130 4.7 6.0 78 5.9 7.2 82 ----- ----- Basin Index (%) 58 68 UPPER N. PLATTE Arapaho Ridge 10976 17.0 17.6 97 16.9 17.6 96 Blackhall Mtn 9839 26.6 22.5 118 27.8 22.4 124 Cinnabar Park 9707 13.6 17.2 79 16.1 19.7 82 Columbine 9167 22.1 19.2 115 20.9 19.4 108 Divide Peak 8730 16.2 15.4 105 19.5 17.0 115 Joe Wright 10158 13.9 16.8 83 17.9 20.9 86 Laprele Creek 8390 5.6 7.4 76 8.4 8.5 99 Med Bow 10512 28.7 -M * 26.4 -M * Never Summer 10323 14.1 16.2 87 10.6 13.8 77 North French Creek 10153 20.6 22.2 93 20.8 21.4 97 Old Battle 9860 24.9 24.4 102 25.3 27.4 92 Rawah 9069 8.8 9.4 94 11.9 12.7 94 Sage Creek Basin 7850 10.9 11.5 95 12.4 10.8 115 Sand Lake 10098 21.0 21.5 98 20.4 18.5 110 South Brush Creek 8495 8.1 9.5 85 9.1 10.9 83 Tower 10620 33.3 35.3 94 31.6 32.8 96 Webber Springs 9260 18.5 16.8 110 19.9 20.5 97 Whiskey Park 9020 25.6 21.8 117 24.8 22.2 112 Willow Creek Pass 9523 10.5 10.6 99 11.6 10.6 109 Zirkel 9338 21.5 23.6 91 23.3 25.2 92 ----- ----- Basin Index (%) 98 99 SWEETWATER Deer Park 9700 12.8 10.4 123 15.0 13.1 115 Larsen Creek 9000 6.8 9.6 71 10.6 10.9 97 South Pass 9040 11.0 11.4 96 12.8 11.8 108 ----- ----- Basin Index (%) 97 107 LOWER N. PLATTE Casper Mtn. 7920 6.2 9.8 63 10.9 10.2 107 Laprele Creek 8390 5.6 7.4 76 8.4 8.5 99 Reno Hill 8430 7.0 10.6 66 10.8 10.8 100 Windy Peak 7915 5.8 6.1 95 7.2 7.4 97 ----- ----- Basin Index (%) 73 101 LARAMIE RIVER Brooklyn Lake 10250 18.2 16.8 108 18.9 17.3 109 Cinnabar Park 9707 13.6 17.2 79 16.1 19.7 82 Crow Creek 8335 2.6 5.9 44 6.7 7.8 86 Deadman Hill 10239 13.0 13.4 97 12.3 13.6 90 Rawah 9069 8.8 9.4 94 11.9 12.7 94 Roach 9740 9.6 12.4 77 11.8 14.8 80 Windy Peak 7915 5.8 6.1 95 7.2 7.4 97 ----- ----- Basin Index (%) 88 91 S. PLATTE Crow Creek 8335 2.6 5.9 44 6.7 7.8 86 ----- ----- Basin Index (%) 44 86 LITTLE SNAKE RIVER Battle Mountain 7498 10.6 10.4 102 15.3 12.4 123 Divide Peak 8730 16.2 15.4 105 19.5 17.0 115 Elk River 8739 15.3 15.8 97 15.7 15.4 102 Elkhead Divide 8800 18.9 -M * 20.0 -M * Little Snake River 8928 24.2 22.4 108 27.5 27.2 101 Old Battle 9860 24.9 24.4 102 25.3 27.4 92 Sage Creek Basin 7850 10.9 11.5 95 12.4 10.8 115 Sandstone RS 8152 15.8 10.4 152 14.8 14.8 100 Whiskey Park 9020 25.6 21.8 117 24.8 22.2 112 ----- ----- Basin Index (%) 109 106 UPPER GREEN RIVER Big Sandy Opening 9080 9.6 10.3 93 10.4 10.2 102 Blind Bull Sum 8650 19.1 19.5 98 13.3 15.2 88 East Rim Divide 7930 7.6 9.0 84 8.8 9.2 96 Elkhart Park G.S. 9400 7.9 9.8 81 9.2 10.0 92 Gros Ventre Summit 8750 9.5 9.6 99 10.8 9.6 112 Gunsight Pass 9820 10.6 10.6 100 12.2 11.2 109 Indian Creek 9425 18.7 19.0 98 16.1 16.0 101 Kendall R.S. 7740 8.0 9.8 82 10.7 10.7 100 Larsen Creek 9000 6.8 9.6 71 10.6 10.9 97 Loomis Park 8240 10.7 12.8 84 12.0 13.9 86 New Fork Lake 8340 7.4 8.7 85 -M 8.4 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 8.3 10.8 77 10.4 11.4 91 Spring Creek Divide 9000 18.9 19.6 96 18.6 19.2 97 Triple Peak 8500 19.0 19.6 97 20.1 20.6 98 ----- ----- Basin Index (%) 91 97 LOWER GREEN RIVER Blacks Fork Jct 8869 10.0 6.8 147 12.2 9.8 124 Buck Pasture 9632 13.1 -M * 13.6 -M * EF Blacks Fork GS 9360 7.2 9.2 78 8.8 8.8 100 Hams Fork 7840 -M 9.2 * 9.3 8.8 106 Henrys Fork 10182 -M -M * 11.1 -M * Hewinta 9500 10.5 8.2 128 13.0 10.6 123 Hickerson Park 9122 7.8 6.3 124 10.2 8.2 124 Hole-in-Rock 9168 6.9 5.7 121 8.3 7.6 109 Indian Creek 9425 18.7 19.0 98 16.1 16.0 101 Kelley R.S. 8180 13.7 12.0 114 14.4 13.4 107 Spirit Lk 10235 11.0 9.3 118 14.6 12.8 114 Steel Creek Park 10158 12.9 11.7 110 15.1 12.8 118 ----- ----- Basin Index (%) 112 112 UPPER BEAR RIVER Bear River RS 8777 10.1 7.9 128 12.2 9.4 130 Bug Lake 7987 20.0 14.8 135 19.6 14.6 134 Burts Miller Ranch 8000 7.9 5.5 144 10.8 5.8 186 Chalk Creek #1 9171 19.0 18.2 104 20.4 18.1 113 Giveout 6930 9.2 8.0 115 10.8 9.9 109 Hayden Fork 9130 15.2 11.8 129 19.0 16.4 116 Kelley R.S. 8180 13.7 12.0 114 14.4 13.4 107 Lily Lake 9133 11.8 10.4 113 13.3 12.5 106 Monte Cristo 8932 24.6 21.0 117 23.8 20.4 117 Salt River Summit 7640 12.6 10.8 117 11.9 12.8 93 Spring Creek Divide 9000 18.9 19.6 96 18.6 19.2 97 Trial Lake 9992 21.0 17.8 118 20.9 18.0 116 ----- ----- Basin Index (%) 117 115 ----------------------------------------------------------------------------- -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.