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 SATURDAY: MARCH 9 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 14.9 15.4 97 18.7 17.4 107 Blind Bull Sum 8650 20.9 20.6 101 14.8 15.8 94 Cottonwood Creek 7670 19.6 18.9 104 23.1 21.2 109 East Rim Divide 7930 8.4 9.6 88 9.6 9.8 98 Grand Targhee 9260 33.3 34.2 97 24.5 26.5 92 Granite Creek 6770 13.7 15.2 90 14.4 16.3 88 Grassy Lake 7265 25.3 27.4 92 31.1 29.8 104 Gros Ventre Summit 8750 10.2 10.6 96 11.8 10.2 116 Gunsight Pass 9820 11.3 11.0 103 12.8 11.7 109 Lewis Lake Divide 7850 28.3 25.6 111 31.8 28.0 114 Loomis Park 8240 11.7 13.4 87 13.1 14.4 91 Phillips Bench 8200 22.5 22.1 102 25.1 23.0 109 Salt River Summit 7640 13.9 11.4 122 13.2 13.1 101 Snake River Station 6920 15.3 15.2 101 21.0 19.0 111 Somsen Ranch 6800 16.2 11.3 143 19.5 14.1 138 Spring Creek Divide 9000 -M 20.6 * -M 20.0 * Thumb Divide 7980 15.9 13.5 118 16.2 14.8 109 Togwotee Pass 9580 17.5 20.3 86 17.2 21.4 80 Triple Peak 8500 21.0 20.8 101 21.8 21.9 100 Two Ocean Plateau 9240 23.8 24.1 99 19.8 22.3 89 Willow Creek 8080 29.1 25.4 115 -M 28.0 * Younts Peak 8350 12.8 13.0 98 13.6 12.4 110 ----- ----- Basin Index (%) 102 103 MADISON HEADWATERS IN WYOMING Black Bear 8170 29.2 32.2 91 32.9 31.9 103 Canyon 7870 9.5 -M * 12.2 -M * Madison Plateau 7750 17.6 19.2 92 20.6 21.2 97 West Yellowstone 6700 8.0 9.6 83 12.3 12.4 99 Whiskey Creek 6800 11.7 13.8 85 17.4 16.9 103 ----- ----- Basin Index (%) 89 101 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 13.3 18.8 71 12.9 17.4 74 Canyon 7870 9.5 -M * 12.2 -M * Evening Star 9200 18.8 22.6 83 23.8 24.6 97 Fisher Creek 9100 19.2 27.7 69 21.4 27.2 79 Monument Peak 8850 12.3 17.4 71 15.2 18.0 84 Northeast Entrance 7350 5.1 9.4 54 8.8 11.4 77 Parker Peak 9400 17.5 18.4 95 19.1 17.2 111 Sylvan Lake 8420 14.4 16.8 86 20.2 19.2 105 Thumb Divide 7980 15.9 13.5 118 16.2 14.8 109 Two Ocean Plateau 9240 23.8 24.1 99 19.8 22.3 89 White Mill 8700 14.3 20.6 69 15.1 19.6 77 Wolverine 7650 9.3 10.5 89 12.3 10.7 115 ----- ----- Basin Index (%) 82 91 WIND RIVER Burroughs Creek 8750 10.7 -M * 10.8 -M * Castle Creek 8400 6.0 6.9 87 7.1 7.4 96 Cold Springs 9630 7.5 6.3 119 10.3 7.4 139 Deer Park 9700 13.7 11.0 125 15.8 14.1 112 Hobbs Park 10100 13.3 11.2 119 13.7 10.0 137 Kirwin 9550 11.5 9.2 125 14.0 9.8 143 Little Warm 9370 9.0 8.4 107 11.8 10.0 118 South Pass 9040 11.7 12.2 96 13.4 12.6 106 St. Lawrence Alt 8620 4.6 -M * 8.1 -M * Togwotee Pass 9580 17.5 20.3 86 17.2 21.4 80 Townsend Creek 8700 7.2 7.5 96 10.6 8.5 125 ----- ----- Basin Index (%) 105 113 BIGHORN BASIN Bald Mtn. 9380 10.9 15.9 69 10.6 13.4 79 Bear Trap Meadow 8200 3.4 5.4 63 6.0 6.6 91 Bone Springs Div 9350 10.2 13.6 75 10.0 12.7 79 Grave Springs 8550 3.3 7.0 47 5.6 7.6 74 Kirwin 9550 11.5 9.2 125 14.0 9.8 143 Marquette 8760 9.6 5.6 171 12.6 7.2 175 Middle Powder 7760 4.4 8.5 52 6.3 8.3 76 Owl Creek 8975 5.0 4.6 109 6.6 4.9 135 Powder River Pass 9480 5.3 9.2 58 8.7 10.2 85 Shell Creek 9580 10.0 12.4 81 10.7 11.2 96 Timber Creek 7950 7.2 4.2 171 11.0 6.0 183 ----- ----- Basin Index (%) 85 104 SHOSHONE RIVER Blackwater 9780 19.4 19.2 101 20.3 18.3 111 Evening Star 9200 18.8 22.6 83 23.8 24.6 97 Marquette 8760 9.6 5.6 171 12.6 7.2 175 Sylvan Lake 8420 14.4 16.8 86 20.2 19.2 105 Sylvan Road 7120 8.1 10.4 78 14.6 14.4 101 Younts Peak 8350 12.8 13.0 98 13.6 12.4 110 ----- ----- Basin Index (%) 95 109 POWDER RIVER Bear Trap Meadow 8200 3.4 5.4 63 6.0 6.6 91 Cloud Peak Reservoir 9860 9.8 12.2 80 11.4 10.8 106 Grave Springs 8550 3.3 7.0 47 5.6 7.6 74 Hansen Sawmill 8360 3.7 5.8 64 6.5 6.6 98 Middle Powder 7760 4.4 8.5 52 6.3 8.3 76 Powder River Pass 9480 5.3 9.2 58 8.7 10.2 85 Soldier Park 8720 3.2 5.7 56 8.1 7.5 108 ----- ----- Basin Index (%) 62 91 TONGUE RIVER Big Goose 7990 4.3 6.6 65 8.4 8.2 102 Bone Springs Div 9350 10.2 13.6 75 10.0 12.7 79 Burgess Junction 7880 5.9 9.0 66 9.4 9.6 98 Dome Lake 8880 -M 9.4 * 8.4 9.8 86 Little Goose 8870 6.1 7.9 77 9.3 9.6 97 Sucker Creek 8880 7.6 10.4 73 11.0 11.5 96 Tie Creek 6870 1.9 4.8 40 10.1 8.8 115 ----- ----- Basin Index (%) 69 95 BELLE FOURCHE Blind Park 6890 3.0 6.8 44 5.1 9.0 57 Cole Canyon 5910 -M 4.8 * 4.4 7.4 59 North Rapid Creek 6130 4.7 6.1 77 6.1 7.4 82 ----- ----- Basin Index (%) 60 66 CHEYENNE RIVER BASIN Blind Park 6890 3.0 6.8 44 5.1 9.0 57 North Rapid Creek 6130 4.7 6.1 77 6.1 7.4 82 ----- ----- Basin Index (%) 60 68 UPPER N. PLATTE Arapaho Ridge 10976 18.4 17.9 103 18.2 18.0 101 Blackhall Mtn 9839 29.0 23.5 123 29.9 23.2 129 Cinnabar Park 9707 14.7 17.8 83 17.2 20.5 84 Columbine 9167 23.8 20.4 117 22.3 20.2 110 Divide Peak 8730 17.2 16.5 104 20.3 18.0 113 Joe Wright 10158 15.7 18.0 87 19.6 21.7 90 Laprele Creek 8390 5.7 7.8 73 8.5 9.4 90 Med Bow 10512 30.9 -M * 28.0 -M * Never Summer 10323 15.4 16.7 92 11.6 14.3 81 North French Creek 10153 22.4 22.8 98 22.3 22.0 101 Old Battle 9860 27.0 25.4 106 26.5 28.4 93 Rawah 9069 9.7 9.6 101 13.0 12.9 101 Sage Creek Basin 7850 11.5 11.9 97 12.7 10.9 117 Sand Lake 10098 23.0 22.0 105 22.0 19.7 112 South Brush Creek 8495 8.8 10.3 85 9.7 11.2 87 Tower 10620 35.8 37.5 95 33.2 33.4 99 Webber Springs 9260 20.4 18.2 112 21.5 21.0 102 Whiskey Park 9020 27.2 23.0 118 25.9 23.4 111 Willow Creek Pass 9523 11.9 10.8 110 12.6 11.1 114 Zirkel 9338 23.1 25.2 92 24.8 26.4 94 ----- ----- Basin Index (%) 102 102 SWEETWATER Deer Park 9700 13.7 11.0 125 15.8 14.1 112 Larsen Creek 9000 7.2 10.0 72 10.9 11.1 98 South Pass 9040 11.7 12.2 96 13.4 12.6 106 ----- ----- Basin Index (%) 98 106 LOWER N. PLATTE Casper Mtn. 7920 6.2 10.7 58 10.9 10.8 101 Laprele Creek 8390 5.7 7.8 73 8.5 9.4 90 Reno Hill 8430 6.9 11.2 62 10.8 11.6 93 Windy Peak 7915 6.2 6.6 94 7.6 7.8 97 ----- ----- Basin Index (%) 69 95 LARAMIE RIVER Brooklyn Lake 10250 19.9 17.3 115 20.3 17.9 113 Cinnabar Park 9707 14.7 17.8 83 17.2 20.5 84 Crow Creek 8335 3.3 6.4 52 7.3 8.2 89 Deadman Hill 10239 14.5 13.9 104 13.8 14.0 99 Rawah 9069 9.7 9.6 101 13.0 12.9 101 Roach 9740 10.9 12.8 85 13.1 15.4 85 Windy Peak 7915 6.2 6.6 94 7.6 7.8 97 ----- ----- Basin Index (%) 94 95 S. PLATTE Crow Creek 8335 3.3 6.4 52 7.3 8.2 89 ----- ----- Basin Index (%) 52 89 LITTLE SNAKE RIVER Battle Mountain 7498 11.0 10.6 104 15.9 12.7 125 Divide Peak 8730 17.2 16.5 104 20.3 18.0 113 Elk River 8739 16.9 16.6 102 16.8 16.0 105 Elkhead Divide 8800 20.3 -M * 20.7 -M * Little Snake River 8928 25.8 22.9 113 28.8 27.4 105 Old Battle 9860 27.0 25.4 106 26.5 28.4 93 Sage Creek Basin 7850 11.5 11.9 97 12.7 10.9 117 Sandstone RS 8152 16.6 11.4 146 15.3 15.5 99 Whiskey Park 9020 27.2 23.0 118 25.9 23.4 111 ----- ----- Basin Index (%) 111 107 UPPER GREEN RIVER Big Sandy Opening 9080 9.9 11.0 90 10.7 10.6 101 Blind Bull Sum 8650 20.9 20.6 101 14.8 15.8 94 East Rim Divide 7930 8.4 9.6 88 9.6 9.8 98 Elkhart Park G.S. 9400 8.6 10.4 83 9.8 10.8 91 Gros Ventre Summit 8750 10.2 10.6 96 11.8 10.2 116 Gunsight Pass 9820 11.3 11.0 103 12.8 11.7 109 Indian Creek 9425 20.2 19.6 103 17.4 17.0 102 Kendall R.S. 7740 8.9 10.8 82 11.6 11.6 100 Larsen Creek 9000 7.2 10.0 72 10.9 11.1 98 Loomis Park 8240 11.7 13.4 87 13.1 14.4 91 New Fork Lake 8340 7.9 9.2 86 -M 9.2 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 8.7 11.4 76 10.9 12.0 91 Spring Creek Divide 9000 -M 20.6 * -M 20.0 * Triple Peak 8500 21.0 20.8 101 21.8 21.9 100 ----- ----- Basin Index (%) 92 99 LOWER GREEN RIVER Blacks Fork Jct 8869 10.3 7.3 141 12.6 10.0 126 Buck Pasture 9632 13.4 -M * 13.8 -M * EF Blacks Fork GS 9360 7.6 9.9 77 8.8 9.3 95 Hams Fork 7840 -M 9.8 * 9.8 9.2 107 Henrys Fork 10182 -M -M * 11.7 -M * Hewinta 9500 10.9 8.6 127 13.2 11.0 120 Hickerson Park 9122 8.0 6.6 121 10.7 8.6 124 Hole-in-Rock 9168 7.0 6.1 115 8.4 8.1 104 Indian Creek 9425 20.2 19.6 103 17.4 17.0 102 Kelley R.S. 8180 14.6 12.6 116 15.4 14.0 110 Spirit Lk 10235 11.4 9.9 115 15.0 13.6 110 Steel Creek Park 10158 13.4 12.4 108 15.7 13.0 121 ----- ----- Basin Index (%) 111 112 UPPER BEAR RIVER Bear River RS 8777 10.5 8.0 131 12.6 9.6 131 Bug Lake 7987 21.3 15.9 134 20.6 15.0 137 Burts Miller Ranch 8000 8.3 5.7 146 11.2 6.1 184 Chalk Creek #1 9171 20.0 19.0 105 21.0 18.8 112 Giveout 6930 10.0 8.5 118 11.4 10.2 112 Hayden Fork 9130 16.1 12.8 126 19.9 16.9 118 Kelley R.S. 8180 14.6 12.6 116 15.4 14.0 110 Lily Lake 9133 12.2 10.8 113 13.9 12.9 108 Monte Cristo 8932 26.0 22.7 115 25.2 21.2 119 Salt River Summit 7640 13.9 11.4 122 13.2 13.1 101 Spring Creek Divide 9000 -M 20.6 * -M 20.0 * Trial Lake 9992 22.4 18.6 120 22.2 18.4 121 ----- ----- Basin Index (%) 120 119 ----------------------------------------------------------------------------- -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.