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: APRIL 7 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 15.4 15.8 97 20.8 20.0 104 Blind Bull Sum 8650 23.8 23.8 100 16.7 17.6 95 Cottonwood Creek 7670 21.0 20.8 101 25.4 25.2 101 East Rim Divide 7930 8.8 10.2 86 11.0 11.0 100 Grand Targhee 9260 39.3 43.4 91 26.3 31.2 84 Granite Creek 6770 15.4 14.7 105 16.6 18.0 92 Grassy Lake 7265 28.1 32.7 86 34.8 34.7 100 Gros Ventre Summit 8750 11.8 12.9 91 13.8 12.0 115 Gunsight Pass 9820 13.3 13.0 102 15.1 13.8 109 Lewis Lake Divide 7850 31.4 30.6 103 35.4 32.4 109 Loomis Park 8240 12.1 15.1 80 15.3 16.6 92 Phillips Bench 8200 24.5 26.2 94 28.2 26.4 107 Salt River Summit 7640 15.6 12.8 122 15.1 16.0 94 Snake River Station 6920 15.3 16.4 93 23.0 22.4 103 Somsen Ranch 6800 17.5 10.3 170 21.6 16.4 132 Spring Creek Divide 9000 -M 24.8 * -M 23.4 * Thumb Divide 7980 17.0 16.4 104 18.2 17.5 104 Togwotee Pass 9580 19.9 23.2 86 19.6 24.5 80 Triple Peak 8500 23.7 22.8 104 23.5 24.8 95 Two Ocean Plateau 9240 28.0 29.0 97 26.4 26.4 100 Willow Creek 8080 34.0 29.5 115 34.9 32.8 106 Younts Peak 8350 14.2 14.6 97 15.3 14.7 104 ----- ----- Basin Index (%) 99 101 MADISON HEADWATERS IN WYOMING Black Bear 8170 31.7 38.1 83 38.0 37.0 103 Canyon 7870 10.9 -M * 13.9 -M * Madison Plateau 7750 20.5 22.8 90 23.7 24.6 96 West Yellowstone 6700 8.4 9.4 89 13.9 13.8 101 Whiskey Creek 6800 13.7 15.0 91 20.2 19.8 102 ----- ----- Basin Index (%) 87 101 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 15.5 21.4 72 15.0 19.8 76 Canyon 7870 10.9 -M * 13.9 -M * Evening Star 9200 20.6 25.0 82 26.3 27.8 95 Fisher Creek 9100 22.9 32.8 70 25.5 32.4 79 Monument Peak 8850 14.4 20.5 70 18.0 21.4 84 Northeast Entrance 7350 5.4 8.4 64 10.5 13.0 81 Parker Peak 9400 20.6 21.2 97 21.9 19.8 111 Sylvan Lake 8420 15.4 19.3 80 23.0 23.3 99 Thumb Divide 7980 17.0 16.4 104 18.2 17.5 104 Two Ocean Plateau 9240 28.0 29.0 97 26.4 26.4 100 White Mill 8700 17.1 24.0 71 18.0 22.8 79 Wolverine 7650 8.6 9.9 87 13.4 12.4 108 ----- ----- Basin Index (%) 81 91 WIND RIVER Burroughs Creek 8750 10.8 -M * 11.9 -M * Castle Creek 8400 6.3 6.3 100 8.2 8.6 95 Cold Springs 9630 8.7 7.0 124 11.6 9.4 123 Deer Park 9700 18.6 15.1 123 21.1 17.7 119 Hobbs Park 10100 16.5 14.3 115 16.9 13.5 125 Kirwin 9550 13.2 10.4 127 16.0 12.0 133 Little Warm 9370 10.3 10.0 103 13.4 11.8 114 South Pass 9040 15.8 14.6 108 17.9 15.4 116 St. Lawrence Alt 8620 6.2 -M * 10.4 -M * Togwotee Pass 9580 19.9 23.2 86 19.6 24.5 80 Townsend Creek 8700 10.2 9.4 109 14.1 11.0 128 ----- ----- Basin Index (%) 108 112 BIGHORN BASIN Bald Mtn. 9380 13.0 19.4 67 12.4 16.0 78 Bear Trap Meadow 8200 5.2 5.8 90 8.8 8.8 100 Bone Springs Div 9350 12.8 17.2 74 11.9 15.7 76 Grave Springs 8550 -M 8.2 * -M 9.2 * Kirwin 9550 13.2 10.4 127 16.0 12.0 133 Marquette 8760 11.9 7.4 161 15.3 9.3 165 Middle Powder 7760 -M 10.8 * 9.1 9.8 93 Owl Creek 8975 5.3 5.2 102 7.6 6.0 127 Powder River Pass 9480 6.6 10.5 63 11.0 12.6 87 Shell Creek 9580 12.2 15.1 81 12.6 13.8 91 Timber Creek 7950 8.1 4.9 165 12.4 7.8 159 ----- ----- Basin Index (%) 92 105 SHOSHONE RIVER Blackwater 9780 22.3 23.0 97 23.4 22.0 106 Evening Star 9200 20.6 25.0 82 26.3 27.8 95 Marquette 8760 11.9 7.4 161 15.3 9.3 165 Sylvan Lake 8420 15.4 19.3 80 23.0 23.3 99 Sylvan Road 7120 5.7 10.6 54 15.4 16.0 96 Younts Peak 8350 14.2 14.6 97 15.3 14.7 104 ----- ----- Basin Index (%) 90 105 POWDER RIVER Bear Trap Meadow 8200 5.2 5.8 90 8.8 8.8 100 Cloud Peak Reservoir 9860 12.2 14.7 83 14.2 13.5 105 Grave Springs 8550 -M 8.2 * -M 9.2 * Hansen Sawmill 8360 5.6 6.1 92 9.0 8.2 110 Middle Powder 7760 -M 10.8 * 9.1 9.8 93 Powder River Pass 9480 6.6 10.5 63 11.0 12.6 87 Soldier Park 8720 4.0 7.6 53 9.8 9.4 104 ----- ----- Basin Index (%) 75 99 TONGUE RIVER Big Goose 7990 6.5 8.7 75 10.9 10.1 108 Bone Springs Div 9350 12.8 17.2 74 11.9 15.7 76 Burgess Junction 7880 8.0 11.0 73 11.6 12.1 96 Dome Lake 8880 -M 11.4 * 11.3 13.0 87 Little Goose 8870 8.2 9.6 85 12.2 12.2 100 Sucker Creek 8880 10.0 12.2 82 14.1 13.9 101 Tie Creek 6870 1.4 4.8 29 12.1 10.7 113 ----- ----- Basin Index (%) 74 96 BELLE FOURCHE Blind Park 6890 .2 6.6 3 6.7 10.8 62 Cole Canyon 5910 .7 4.7 15 6.6 9.4 70 North Rapid Creek 6130 4.4 6.2 71 8.4 8.8 95 ----- ----- Basin Index (%) 30 75 CHEYENNE RIVER BASIN Blind Park 6890 .2 6.6 3 6.7 10.8 62 North Rapid Creek 6130 4.4 6.2 71 8.4 8.8 95 ----- ----- Basin Index (%) 36 77 UPPER N. PLATTE Arapaho Ridge 10976 21.5 22.4 96 21.7 21.4 101 Blackhall Mtn 9839 32.3 30.5 106 34.9 29.4 119 Cinnabar Park 9707 20.1 20.4 99 23.0 23.6 97 Columbine 9167 26.2 22.2 118 25.9 24.7 105 Divide Peak 8730 21.9 19.8 111 24.7 21.4 115 Joe Wright 10158 18.8 20.4 92 23.4 26.0 90 Laprele Creek 8390 7.6 9.4 81 11.3 11.6 97 Med Bow 10512 38.9 -M * 33.4 -M * Never Summer 10323 18.7 20.4 92 14.6 17.0 86 North French Creek 10153 26.8 29.6 91 27.1 26.8 101 Old Battle 9860 33.5 31.4 107 33.9 34.6 98 Rawah 9069 11.4 10.6 108 16.4 15.5 106 Sage Creek Basin 7850 14.9 12.0 124 15.6 13.3 117 Sand Lake 10098 30.0 27.6 109 28.6 24.8 115 South Brush Creek 8495 10.1 11.6 87 12.3 13.7 90 Tower 10620 41.4 43.3 96 39.9 39.2 102 Webber Springs 9260 23.8 22.4 106 26.3 25.4 104 Whiskey Park 9020 31.6 27.0 117 30.4 27.4 111 Willow Creek Pass 9523 14.3 13.2 108 15.0 13.6 110 Zirkel 9338 25.8 28.1 92 28.8 30.7 94 ----- ----- Basin Index (%) 102 103 SWEETWATER Deer Park 9700 18.6 15.1 123 21.1 17.7 119 Larsen Creek 9000 9.4 9.6 98 14.8 13.4 110 South Pass 9040 15.8 14.6 108 17.9 15.4 116 ----- ----- Basin Index (%) 111 116 LOWER N. PLATTE Casper Mtn. 7920 11.5 13.8 83 15.2 13.8 110 Laprele Creek 8390 7.6 9.4 81 11.3 11.6 97 Reno Hill 8430 9.9 14.0 71 14.2 15.2 93 Windy Peak 7915 8.4 7.8 108 10.2 10.2 100 ----- ----- Basin Index (%) 83 100 LARAMIE RIVER Brooklyn Lake 10250 23.5 22.0 107 25.2 21.8 116 Cinnabar Park 9707 20.1 20.4 99 23.0 23.6 97 Crow Creek 8335 5.1 5.8 88 10.2 10.6 96 Deadman Hill 10239 19.6 16.2 121 18.3 17.8 103 Rawah 9069 11.4 10.6 108 16.4 15.5 106 Roach 9740 14.5 15.3 95 17.5 19.0 92 Windy Peak 7915 8.4 7.8 108 10.2 10.2 100 ----- ----- Basin Index (%) 105 102 S. PLATTE Crow Creek 8335 5.1 5.8 88 10.2 10.6 96 ----- ----- Basin Index (%) 88 96 LITTLE SNAKE RIVER Battle Mountain 7498 11.1 10.2 109 18.9 15.0 126 Divide Peak 8730 21.9 19.8 111 24.7 21.4 115 Elk River 8739 19.1 17.2 111 20.5 19.2 107 Elkhead Divide 8800 23.3 -M * 24.5 -M * Little Snake River 8928 29.7 27.5 108 34.1 32.7 104 Old Battle 9860 33.5 31.4 107 33.9 34.6 98 Sage Creek Basin 7850 14.9 12.0 124 15.6 13.3 117 Sandstone RS 8152 17.4 12.8 136 18.5 17.8 104 Whiskey Park 9020 31.6 27.0 117 30.4 27.4 111 ----- ----- Basin Index (%) 113 108 UPPER GREEN RIVER Big Sandy Opening 9080 14.0 12.9 109 15.1 12.8 118 Blind Bull Sum 8650 23.8 23.8 100 16.7 17.6 95 East Rim Divide 7930 8.8 10.2 86 11.0 11.0 100 Elkhart Park G.S. 9400 11.7 12.5 94 12.7 12.6 101 Gros Ventre Summit 8750 11.8 12.9 91 13.8 12.0 115 Gunsight Pass 9820 13.3 13.0 102 15.1 13.8 109 Indian Creek 9425 23.5 23.5 100 20.4 19.6 104 Kendall R.S. 7740 8.9 11.2 79 13.1 13.0 101 Larsen Creek 9000 9.4 9.6 98 14.8 13.4 110 Loomis Park 8240 12.1 15.1 80 15.3 16.6 92 New Fork Lake 8340 8.6 10.5 82 6.4 10.6 60 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 10.2 13.0 78 12.7 13.8 92 Spring Creek Divide 9000 -M 24.8 * -M 23.4 * Triple Peak 8500 23.7 22.8 104 23.5 24.8 95 ----- ----- Basin Index (%) 94 99 LOWER GREEN RIVER Blacks Fork Jct 8869 11.2 8.4 133 14.3 12.2 117 Buck Pasture 9632 16.1 -M * 16.5 -M * EF Blacks Fork GS 9360 11.4 11.3 101 10.4 10.8 96 Hams Fork 7840 -M 10.8 * 11.5 11.0 105 Henrys Fork 10182 -M -M * 13.9 -M * Hewinta 9500 12.4 10.8 115 15.2 13.4 113 Hickerson Park 9122 11.1 6.8 163 13.8 10.4 133 Hole-in-Rock 9168 9.0 7.2 125 10.9 10.1 108 Indian Creek 9425 23.5 23.5 100 20.4 19.6 104 Kelley R.S. 8180 16.6 14.6 114 17.9 16.0 112 Spirit Lk 10235 15.6 14.0 111 19.2 16.9 114 Steel Creek Park 10158 16.0 14.8 108 18.0 16.4 110 ----- ----- Basin Index (%) 114 111 UPPER BEAR RIVER Bear River RS 8777 12.2 8.4 145 14.8 11.8 125 Bug Lake 7987 22.6 18.3 123 23.4 18.1 129 Burts Miller Ranch 8000 8.7 5.2 167 12.6 7.8 162 Chalk Creek #1 9171 25.0 22.4 112 25.5 22.4 114 Giveout 6930 10.7 8.0 134 13.2 11.8 112 Hayden Fork 9130 19.2 14.6 132 23.5 20.5 115 Kelley R.S. 8180 16.6 14.6 114 17.9 16.0 112 Lily Lake 9133 14.5 12.6 115 16.3 15.2 107 Monte Cristo 8932 30.9 27.2 114 29.3 26.3 111 Salt River Summit 7640 15.6 12.8 122 15.1 16.0 94 Spring Creek Divide 9000 -M 24.8 * -M 23.4 * Trial Lake 9992 29.2 21.8 134 27.0 22.3 121 ----- ----- Basin Index (%) 124 116 ----------------------------------------------------------------------------- -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.