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 WEDNESDAY: APRIL 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 16.3 16.6 98 20.5 19.8 104 Blind Bull Sum 8650 23.8 23.5 101 16.6 17.5 95 Cottonwood Creek 7670 21.1 21.5 98 25.6 24.6 104 East Rim Divide 7930 9.2 10.5 88 11.0 10.9 101 Grand Targhee 9260 38.3 41.3 93 26.0 30.0 87 Granite Creek 6770 15.7 15.4 102 16.6 17.8 93 Grassy Lake 7265 28.1 32.2 87 33.9 33.9 100 Gros Ventre Summit 8750 11.9 12.8 93 13.5 12.0 112 Gunsight Pass 9820 13.2 12.7 104 14.7 13.4 110 Lewis Lake Divide 7850 31.7 30.0 106 35.1 32.0 110 Loomis Park 8240 12.4 15.4 81 15.2 16.5 92 Phillips Bench 8200 25.4 26.0 98 28.0 26.2 107 Salt River Summit 7640 16.2 13.4 121 15.1 15.8 96 Snake River Station 6920 16.2 16.8 96 22.8 21.8 105 Somsen Ranch 6800 17.9 11.0 163 21.3 16.4 130 Spring Creek Divide 9000 23.1 24.6 94 22.1 23.2 95 Thumb Divide 7980 17.0 16.0 106 18.0 17.1 105 Togwotee Pass 9580 19.9 23.0 87 19.5 24.1 81 Triple Peak 8500 24.1 22.6 107 23.6 24.6 96 Two Ocean Plateau 9240 27.3 28.4 96 26.1 25.4 103 Willow Creek 8080 34.5 29.6 117 34.4 32.2 107 Younts Peak 8350 14.5 14.2 102 15.2 14.4 106 ----- ----- Basin Index (%) 100 101 MADISON HEADWATERS IN WYOMING Black Bear 8170 -M 37.4 * 37.3 36.2 103 Canyon 7870 11.0 -M * 13.8 -M * Madison Plateau 7750 20.6 22.2 93 23.3 24.1 97 West Yellowstone 6700 9.0 10.2 88 13.7 13.8 99 Whiskey Creek 6800 13.8 15.4 90 19.9 19.2 104 ----- ----- Basin Index (%) 91 101 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 14.8 21.2 70 14.4 19.4 74 Canyon 7870 11.0 -M * 13.8 -M * Evening Star 9200 20.6 24.5 84 26.0 27.2 96 Fisher Creek 9100 22.4 32.3 69 25.1 31.6 79 Monument Peak 8850 14.6 20.2 72 17.7 20.8 85 Northeast Entrance 7350 6.1 9.1 67 10.2 12.6 81 Parker Peak 9400 19.9 20.2 99 21.4 19.4 110 Sylvan Lake 8420 15.6 19.4 80 22.3 22.6 99 Thumb Divide 7980 17.0 16.0 106 18.0 17.1 105 Two Ocean Plateau 9240 27.3 28.4 96 26.1 25.4 103 White Mill 8700 16.9 23.2 73 17.8 22.1 81 Wolverine 7650 9.4 10.8 87 13.2 12.2 108 ----- ----- Basin Index (%) 82 92 WIND RIVER Burroughs Creek 8750 11.4 -M * 11.8 -M * Castle Creek 8400 7.0 6.3 111 8.2 8.2 100 Cold Springs 9630 8.6 7.2 119 11.7 9.0 130 Deer Park 9700 18.9 14.5 130 21.2 17.2 123 Hobbs Park 10100 16.6 13.9 119 16.9 12.9 131 Kirwin 9550 13.2 10.5 126 15.8 11.7 135 Little Warm 9370 10.4 10.0 104 13.4 11.6 116 South Pass 9040 16.1 14.6 110 17.9 15.0 119 St. Lawrence Alt 8620 6.7 -M * 10.4 -M * Togwotee Pass 9580 19.9 23.0 87 19.5 24.1 81 Townsend Creek 8700 10.5 9.0 117 14.1 10.8 131 ----- ----- Basin Index (%) 111 115 BIGHORN BASIN Bald Mtn. 9380 12.6 19.1 66 11.9 15.6 76 Bear Trap Meadow 8200 4.7 5.9 80 8.1 8.1 100 Bone Springs Div 9350 12.7 16.6 77 11.6 15.0 77 Grave Springs 8550 5.1 8.2 62 7.4 8.9 83 Kirwin 9550 13.2 10.5 126 15.8 11.7 135 Marquette 8760 12.0 7.2 167 14.8 8.8 168 Middle Powder 7760 6.2 10.8 57 7.8 9.6 81 Owl Creek 8975 5.6 5.6 100 7.3 5.8 126 Powder River Pass 9480 6.2 10.4 60 10.0 12.3 81 Shell Creek 9580 11.5 14.9 77 12.2 13.4 91 Timber Creek 7950 8.1 4.8 169 12.2 7.7 158 ----- ----- Basin Index (%) 86 102 SHOSHONE RIVER Blackwater 9780 22.3 22.3 100 23.4 21.4 109 Evening Star 9200 20.6 24.5 84 26.0 27.2 96 Marquette 8760 12.0 7.2 167 14.8 8.8 168 Sylvan Lake 8420 15.6 19.4 80 22.3 22.6 99 Sylvan Road 7120 7.2 10.7 67 15.1 16.0 94 Younts Peak 8350 14.5 14.2 102 15.2 14.4 106 ----- ----- Basin Index (%) 94 106 POWDER RIVER Bear Trap Meadow 8200 4.7 5.9 80 8.1 8.1 100 Cloud Peak Reservoir 9860 11.4 14.3 80 13.3 13.2 101 Grave Springs 8550 5.1 8.2 62 7.4 8.9 83 Hansen Sawmill 8360 5.5 6.4 86 8.5 8.2 104 Middle Powder 7760 6.2 10.8 57 7.8 9.6 81 Powder River Pass 9480 6.2 10.4 60 10.0 12.3 81 Soldier Park 8720 4.4 7.4 59 9.5 8.9 107 ----- ----- Basin Index (%) 69 93 TONGUE RIVER Big Goose 7990 5.9 8.6 69 9.9 9.6 103 Bone Springs Div 9350 12.7 16.6 77 11.6 15.0 77 Burgess Junction 7880 7.4 10.6 70 10.8 11.4 95 Dome Lake 8880 -M 11.5 * 10.5 12.4 85 Little Goose 8870 7.7 9.4 82 11.3 11.6 97 Sucker Creek 8880 9.3 11.8 79 12.9 13.3 97 Tie Creek 6870 2.4 4.8 50 11.5 10.3 112 ----- ----- Basin Index (%) 73 94 BELLE FOURCHE Blind Park 6890 .0 7.0 0 6.2 10.6 58 Cole Canyon 5910 2.4 5.6 43 5.8 9.0 64 North Rapid Creek 6130 4.9 6.5 75 6.9 8.6 80 ----- ----- Basin Index (%) 38 67 CHEYENNE RIVER BASIN Blind Park 6890 .0 7.0 0 6.2 10.6 58 North Rapid Creek 6130 4.9 6.5 75 6.9 8.6 80 ----- ----- Basin Index (%) 36 68 UPPER N. PLATTE Arapaho Ridge 10976 21.2 21.4 99 21.1 21.2 100 Blackhall Mtn 9839 33.0 30.4 109 34.0 29.1 117 Cinnabar Park 9707 20.0 20.4 98 22.5 23.3 97 Columbine 9167 26.7 22.0 121 25.3 23.4 108 Divide Peak 8730 21.7 19.6 111 24.2 21.2 114 Joe Wright 10158 18.6 20.0 93 22.9 25.2 91 Laprele Creek 8390 7.2 9.5 76 10.5 11.6 91 Med Bow 10512 37.7 -M * 32.2 -M * Never Summer 10323 18.8 20.2 93 14.4 16.6 87 North French Creek 10153 26.5 28.2 94 26.4 26.2 101 Old Battle 9860 32.6 30.4 107 33.1 33.6 99 Rawah 9069 12.3 10.7 115 16.0 15.0 107 Sage Creek Basin 7850 16.0 13.1 122 15.5 12.8 121 Sand Lake 10098 29.4 26.8 110 28.2 24.2 117 South Brush Creek 8495 10.6 12.0 88 12.1 13.6 89 Tower 10620 40.5 42.2 96 37.2 38.4 97 Webber Springs 9260 24.0 22.0 109 25.9 25.2 103 Whiskey Park 9020 31.8 26.7 119 29.5 26.8 110 Willow Creek Pass 9523 14.1 12.8 110 14.8 13.3 111 Zirkel 9338 26.1 27.6 95 28.3 30.4 93 ----- ----- Basin Index (%) 104 103 SWEETWATER Deer Park 9700 18.9 14.5 130 21.2 17.2 123 Larsen Creek 9000 8.9 10.2 87 14.8 13.4 110 South Pass 9040 16.1 14.6 110 17.9 15.0 119 ----- ----- Basin Index (%) 112 118 LOWER N. PLATTE Casper Mtn. 7920 9.8 13.0 75 13.7 13.4 102 Laprele Creek 8390 7.2 9.5 76 10.5 11.6 91 Reno Hill 8430 9.5 13.9 68 13.2 14.5 91 Windy Peak 7915 8.6 8.0 108 9.9 10.1 98 ----- ----- Basin Index (%) 79 95 LARAMIE RIVER Brooklyn Lake 10250 24.4 21.2 115 24.8 21.2 117 Cinnabar Park 9707 20.0 20.4 98 22.5 23.3 97 Crow Creek 8335 5.6 6.3 89 10.0 10.5 95 Deadman Hill 10239 19.3 15.8 122 18.2 17.2 106 Rawah 9069 12.3 10.7 115 16.0 15.0 107 Roach 9740 15.0 15.4 97 17.4 18.2 96 Windy Peak 7915 8.6 8.0 108 9.9 10.1 98 ----- ----- Basin Index (%) 108 103 S. PLATTE Crow Creek 8335 5.6 6.3 89 10.0 10.5 95 ----- ----- Basin Index (%) 89 95 LITTLE SNAKE RIVER Battle Mountain 7498 12.1 10.6 114 18.5 14.6 127 Divide Peak 8730 21.7 19.6 111 24.2 21.2 114 Elk River 8739 19.3 18.0 107 19.8 18.7 106 Elkhead Divide 8800 23.6 -M * 23.8 -M * Little Snake River 8928 30.0 26.0 115 33.0 31.3 105 Old Battle 9860 32.6 30.4 107 33.1 33.6 99 Sage Creek Basin 7850 16.0 13.1 122 15.5 12.8 121 Sandstone RS 8152 18.6 12.6 148 18.0 17.2 105 Whiskey Park 9020 31.8 26.7 119 29.5 26.8 110 ----- ----- Basin Index (%) 116 109 UPPER GREEN RIVER Big Sandy Opening 9080 14.1 12.9 109 15.0 12.4 121 Blind Bull Sum 8650 23.8 23.5 101 16.6 17.5 95 East Rim Divide 7930 9.2 10.5 88 11.0 10.9 101 Elkhart Park G.S. 9400 11.5 12.4 93 12.6 12.6 100 Gros Ventre Summit 8750 11.9 12.8 93 13.5 12.0 112 Gunsight Pass 9820 13.2 12.7 104 14.7 13.4 110 Indian Creek 9425 23.9 23.4 102 20.4 19.4 105 Kendall R.S. 7740 9.1 11.3 81 12.9 13.0 99 Larsen Creek 9000 8.9 10.2 87 14.8 13.4 110 Loomis Park 8240 12.4 15.4 81 15.2 16.5 92 New Fork Lake 8340 8.8 10.5 84 -M 10.6 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 10.5 12.6 83 12.7 13.8 92 Spring Creek Divide 9000 23.1 24.6 94 22.1 23.2 95 Triple Peak 8500 24.1 22.6 107 23.6 24.6 96 ----- ----- Basin Index (%) 95 101 LOWER GREEN RIVER Blacks Fork Jct 8869 11.9 9.0 132 14.0 12.2 115 Buck Pasture 9632 16.2 -M * 16.1 -M * EF Blacks Fork GS 9360 11.8 11.4 104 10.2 10.8 94 Hams Fork 7840 -M 11.2 * 11.5 11.0 105 Henrys Fork 10182 -M -M * 13.6 -M * Hewinta 9500 13.3 10.5 127 14.9 13.4 111 Hickerson Park 9122 11.5 7.2 160 13.7 10.0 137 Hole-in-Rock 9168 9.6 7.0 137 10.9 9.7 112 Indian Creek 9425 23.9 23.4 102 20.4 19.4 105 Kelley R.S. 8180 17.2 14.8 116 17.8 15.8 113 Spirit Lk 10235 15.8 13.0 122 19.0 16.8 113 Steel Creek Park 10158 15.7 14.2 111 17.8 16.1 111 ----- ----- Basin Index (%) 118 111 UPPER BEAR RIVER Bear River RS 8777 13.3 9.4 141 14.6 11.8 124 Bug Lake 7987 22.8 18.6 123 23.1 17.8 130 Burts Miller Ranch 8000 9.5 6.1 156 12.6 7.7 164 Chalk Creek #1 9171 25.0 22.8 110 24.8 22.4 111 Giveout 6930 11.7 8.0 146 13.1 11.6 113 Hayden Fork 9130 19.4 14.8 131 23.0 19.9 116 Kelley R.S. 8180 17.2 14.8 116 17.8 15.8 113 Lily Lake 9133 14.4 12.4 116 16.0 14.7 109 Monte Cristo 8932 30.3 26.8 113 28.5 26.0 110 Salt River Summit 7640 16.2 13.4 121 15.1 15.8 96 Spring Creek Divide 9000 23.1 24.6 94 22.1 23.2 95 Trial Lake 9992 28.6 21.4 134 26.8 22.0 122 ----- ----- Basin Index (%) 120 114 ----------------------------------------------------------------------------- -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.