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 24 , 2024 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 15.0 15.9 94 19.2 18.9 102 Blind Bull Sum 8650 22.6 22.4 101 15.5 16.8 92 Cottonwood Creek 7670 -M 20.6 * -M 23.3 * East Rim Divide 7930 8.3 10.2 81 9.9 10.4 95 Grand Targhee 9260 35.7 38.1 94 25.2 28.6 88 Granite Creek 6770 14.2 15.6 91 14.9 17.0 88 Grassy Lake 7265 27.0 30.6 88 32.6 32.5 100 Gros Ventre Summit 8750 10.8 11.6 93 12.1 11.2 108 Gunsight Pass 9820 11.6 12.1 96 13.1 12.7 103 Lewis Lake Divide 7850 29.2 29.0 101 33.1 30.4 109 Loomis Park 8240 11.2 14.4 78 13.8 15.6 88 Phillips Bench 8200 22.8 23.8 96 25.8 25.1 103 Salt River Summit 7640 14.7 12.6 117 13.9 14.2 98 Snake River Station 6920 15.2 16.6 92 21.8 20.1 108 Somsen Ranch 6800 16.6 11.6 143 20.2 15.0 135 Spring Creek Divide 9000 21.4 23.0 93 20.5 22.1 93 Thumb Divide 7980 15.7 14.9 105 16.8 15.8 106 Togwotee Pass 9580 18.2 21.9 83 17.6 22.6 78 Triple Peak 8500 22.1 22.1 100 22.5 23.8 95 Two Ocean Plateau 9240 25.4 26.8 95 24.7 24.0 103 Willow Creek 8080 31.8 27.5 116 31.7 30.2 105 Younts Peak 8350 13.5 13.8 98 14.4 13.5 107 ----- ----- Basin Index (%) 97 100 MADISON HEADWATERS IN WYOMING Black Bear 8170 30.5 36.2 84 34.9 33.4 104 Canyon 7870 10.1 -M * 12.7 -M * Madison Plateau 7750 18.6 20.8 89 21.5 22.4 96 West Yellowstone 6700 8.3 10.2 81 12.7 13.1 97 Whiskey Creek 6800 12.6 14.4 88 18.5 18.1 102 ----- ----- Basin Index (%) 86 101 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 14.3 20.4 70 13.8 18.7 74 Canyon 7870 10.1 -M * 12.7 -M * Evening Star 9200 19.6 23.7 83 24.9 26.2 95 Fisher Creek 9100 20.7 30.2 69 23.3 30.0 78 Monument Peak 8850 13.2 19.1 69 16.2 19.4 84 Northeast Entrance 7350 5.2 9.7 54 9.3 12.1 77 Parker Peak 9400 18.8 19.6 96 20.4 18.6 110 Sylvan Lake 8420 14.8 18.6 80 21.2 21.1 100 Thumb Divide 7980 15.7 14.9 105 16.8 15.8 106 Two Ocean Plateau 9240 25.4 26.8 95 24.7 24.0 103 White Mill 8700 15.5 21.8 71 16.4 21.2 77 Wolverine 7650 9.1 10.8 84 12.7 11.4 111 ----- ----- Basin Index (%) 80 91 WIND RIVER Burroughs Creek 8750 11.0 -M * 11.0 -M * Castle Creek 8400 6.0 7.0 86 7.3 7.8 94 Cold Springs 9630 7.7 6.8 113 10.7 8.2 130 Deer Park 9700 15.8 13.1 121 18.2 16.3 112 Hobbs Park 10100 15.6 12.8 122 15.9 11.1 143 Kirwin 9550 12.7 9.8 130 15.1 10.4 145 Little Warm 9370 9.1 9.2 99 12.0 11.2 107 South Pass 9040 13.8 13.6 101 15.8 14.0 113 St. Lawrence Alt 8620 5.4 -M * 9.4 -M * Togwotee Pass 9580 18.2 21.9 83 17.6 22.6 78 Townsend Creek 8700 9.3 8.2 113 13.0 9.2 141 ----- ----- Basin Index (%) 106 113 BIGHORN BASIN Bald Mtn. 9380 11.7 16.8 70 11.2 14.7 76 Bear Trap Meadow 8200 3.6 6.0 60 6.8 7.4 92 Bone Springs Div 9350 11.5 15.0 77 11.0 13.6 81 Grave Springs 8550 3.9 8.0 49 6.2 8.6 72 Kirwin 9550 12.7 9.8 130 15.1 10.4 145 Marquette 8760 10.5 6.5 162 13.5 8.0 169 Middle Powder 7760 4.9 9.7 51 6.7 9.0 74 Owl Creek 8975 4.9 5.0 98 6.6 5.3 125 Powder River Pass 9480 5.7 10.0 57 9.4 11.4 82 Shell Creek 9580 10.6 13.8 77 11.4 12.3 93 Timber Creek 7950 7.2 4.0 180 11.4 6.6 173 ----- ----- Basin Index (%) 83 102 SHOSHONE RIVER Blackwater 9780 20.7 20.8 100 21.6 20.2 107 Evening Star 9200 19.6 23.7 83 24.9 26.2 95 Marquette 8760 10.5 6.5 162 13.5 8.0 169 Sylvan Lake 8420 14.8 18.6 80 21.2 21.1 100 Sylvan Road 7120 7.3 11.4 64 14.6 15.1 97 Younts Peak 8350 13.5 13.8 98 14.4 13.5 107 ----- ----- Basin Index (%) 91 106 POWDER RIVER Bear Trap Meadow 8200 3.6 6.0 60 6.8 7.4 92 Cloud Peak Reservoir 9860 10.8 13.5 80 12.5 11.8 106 Grave Springs 8550 3.9 8.0 49 6.2 8.6 72 Hansen Sawmill 8360 4.6 6.0 77 7.6 7.8 97 Middle Powder 7760 4.9 9.7 51 6.7 9.0 74 Powder River Pass 9480 5.7 10.0 57 9.4 11.4 82 Soldier Park 8720 3.7 6.1 61 8.6 8.0 108 ----- ----- Basin Index (%) 63 90 TONGUE RIVER Big Goose 7990 5.4 7.4 73 9.3 8.8 106 Bone Springs Div 9350 11.5 15.0 77 11.0 13.6 81 Burgess Junction 7880 6.7 9.6 70 10.1 10.4 97 Dome Lake 8880 -M 10.6 * 9.7 11.2 87 Little Goose 8870 7.2 8.4 86 10.7 10.4 103 Sucker Creek 8880 8.7 11.1 78 12.3 12.4 99 Tie Creek 6870 2.0 4.6 43 10.8 9.4 115 ----- ----- Basin Index (%) 74 97 BELLE FOURCHE Blind Park 6890 .0 7.0 0 5.6 9.9 57 Cole Canyon 5910 1.8 5.1 35 4.9 7.8 63 North Rapid Creek 6130 4.6 6.6 70 6.3 8.1 78 ----- ----- Basin Index (%) 34 65 CHEYENNE RIVER BASIN Blind Park 6890 .0 7.0 0 5.6 9.9 57 North Rapid Creek 6130 4.6 6.6 70 6.3 8.1 78 ----- ----- Basin Index (%) 34 66 UPPER N. PLATTE Arapaho Ridge 10976 19.0 19.8 96 18.9 19.4 97 Blackhall Mtn 9839 28.3 27.9 101 31.1 26.9 116 Cinnabar Park 9707 18.5 19.2 96 20.8 21.5 97 Columbine 9167 25.2 21.7 116 23.2 22.1 105 Divide Peak 8730 19.1 18.2 105 22.1 20.0 110 Joe Wright 10158 17.8 18.5 96 21.5 23.8 90 Laprele Creek 8390 6.7 8.8 76 9.9 10.6 93 Med Bow 10512 33.9 -M * 29.5 -M * Never Summer 10323 16.3 18.4 89 12.6 15.3 82 North French Creek 10153 24.5 26.1 94 24.0 24.1 100 Old Battle 9860 28.6 27.5 104 29.4 30.6 96 Rawah 9069 10.9 10.0 109 14.3 14.0 102 Sage Creek Basin 7850 14.6 12.2 120 14.1 11.8 119 Sand Lake 10098 26.8 24.4 110 26.0 22.6 115 South Brush Creek 8495 9.6 11.2 86 10.8 12.4 87 Tower 10620 37.3 39.0 96 34.6 36.6 95 Webber Springs 9260 21.2 20.6 103 23.1 23.2 100 Whiskey Park 9020 29.5 24.7 119 27.2 25.3 108 Willow Creek Pass 9523 12.5 12.0 104 13.3 12.4 107 Zirkel 9338 24.0 26.2 92 25.9 28.2 92 ----- ----- Basin Index (%) 101 100 SWEETWATER Deer Park 9700 15.8 13.1 121 18.2 16.3 112 Larsen Creek 9000 7.9 10.6 75 12.4 11.9 104 South Pass 9040 13.8 13.6 101 15.8 14.0 113 ----- ----- Basin Index (%) 101 110 LOWER N. PLATTE Casper Mtn. 7920 8.5 12.0 71 12.7 12.2 104 Laprele Creek 8390 6.7 8.8 76 9.9 10.6 93 Reno Hill 8430 8.8 12.6 70 12.4 12.6 98 Windy Peak 7915 7.9 7.6 104 9.2 8.8 105 ----- ----- Basin Index (%) 78 100 LARAMIE RIVER Brooklyn Lake 10250 22.6 19.8 114 23.0 19.6 117 Cinnabar Park 9707 18.5 19.2 96 20.8 21.5 97 Crow Creek 8335 4.7 6.4 73 9.0 9.5 95 Deadman Hill 10239 17.8 15.2 117 16.5 15.8 104 Rawah 9069 10.9 10.0 109 14.3 14.0 102 Roach 9740 12.9 14.2 91 15.2 16.6 92 Windy Peak 7915 7.9 7.6 104 9.2 8.8 105 ----- ----- Basin Index (%) 103 102 S. PLATTE Crow Creek 8335 4.7 6.4 73 9.0 9.5 95 ----- ----- Basin Index (%) 73 95 LITTLE SNAKE RIVER Battle Mountain 7498 11.6 11.1 105 17.4 13.7 127 Divide Peak 8730 19.1 18.2 105 22.1 20.0 110 Elk River 8739 16.5 16.8 98 17.4 17.4 100 Elkhead Divide 8800 20.6 -M * 21.5 -M * Little Snake River 8928 26.7 24.6 109 30.0 29.2 103 Old Battle 9860 28.6 27.5 104 29.4 30.6 96 Sage Creek Basin 7850 14.6 12.2 120 14.1 11.8 119 Sandstone RS 8152 17.0 11.7 145 16.5 16.5 100 Whiskey Park 9020 29.5 24.7 119 27.2 25.3 108 ----- ----- Basin Index (%) 111 106 UPPER GREEN RIVER Big Sandy Opening 9080 11.2 12.2 92 12.1 11.9 102 Blind Bull Sum 8650 22.6 22.4 101 15.5 16.8 92 East Rim Divide 7930 8.3 10.2 81 9.9 10.4 95 Elkhart Park G.S. 9400 9.4 11.6 81 10.1 11.7 86 Gros Ventre Summit 8750 10.8 11.6 93 12.1 11.2 108 Gunsight Pass 9820 11.6 12.1 96 13.1 12.7 103 Indian Creek 9425 21.3 20.7 103 18.3 18.0 102 Kendall R.S. 7740 8.7 11.4 76 11.9 12.4 96 Larsen Creek 9000 7.9 10.6 75 12.4 11.9 104 Loomis Park 8240 11.2 14.4 78 13.8 15.6 88 New Fork Lake 8340 7.8 10.0 78 6.1 9.8 62 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 9.0 12.2 74 11.5 12.8 90 Spring Creek Divide 9000 21.4 23.0 93 20.5 22.1 93 Triple Peak 8500 22.1 22.1 100 22.5 23.8 95 ----- ----- Basin Index (%) 90 94 LOWER GREEN RIVER Blacks Fork Jct 8869 10.7 7.8 137 13.2 11.2 118 Buck Pasture 9632 14.3 -M * 14.5 -M * EF Blacks Fork GS 9360 8.0 11.0 73 9.4 10.0 94 Hams Fork 7840 -M 10.6 * 10.6 9.8 108 Henrys Fork 10182 -M -M * 12.6 -M * Hewinta 9500 11.8 9.4 126 14.1 12.0 118 Hickerson Park 9122 10.8 7.0 154 13.0 9.1 143 Hole-in-Rock 9168 8.6 7.0 123 10.3 8.9 116 Indian Creek 9425 21.3 20.7 103 18.3 18.0 102 Kelley R.S. 8180 15.8 13.8 114 16.2 14.7 110 Spirit Lk 10235 14.1 11.5 123 17.5 15.6 112 Steel Creek Park 10158 14.4 13.4 107 16.6 14.0 119 ----- ----- Basin Index (%) 114 113 UPPER BEAR RIVER Bear River RS 8777 11.0 8.4 131 13.3 10.8 123 Bug Lake 7987 21.5 17.1 126 21.6 16.0 135 Burts Miller Ranch 8000 8.2 5.4 152 11.9 6.8 175 Chalk Creek #1 9171 21.5 21.0 102 22.6 21.0 108 Giveout 6930 10.5 7.8 135 12.1 10.7 113 Hayden Fork 9130 17.1 13.6 126 20.8 18.3 114 Kelley R.S. 8180 15.8 13.8 114 16.2 14.7 110 Lily Lake 9133 13.0 11.6 112 14.7 13.9 106 Monte Cristo 8932 26.8 24.6 109 25.9 22.8 114 Salt River Summit 7640 14.7 12.6 117 13.9 14.2 98 Spring Creek Divide 9000 21.4 23.0 93 20.5 22.1 93 Trial Lake 9992 24.5 20.4 120 23.5 20.1 117 ----- ----- Basin Index (%) 115 113 ----------------------------------------------------------------------------- -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.