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: DECEMBER 3 , 2022 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 5.1 4.1 124 6.1 6.8 90 Blind Bull Sum 8650 4.5 5.0 90 3.6 5.5 65 Cottonwood Creek 7670 5.8 5.0 116 6.2 7.0 89 East Rim Divide 7930 1.9 2.2 86 2.1 3.6 58 Grand Targhee 9260 15.6 13.2 118 9.3 11.8 79 Granite Creek 6770 3.5 3.2 109 3.0 5.8 52 Grassy Lake 7265 7.7 6.4 120 10.9 10.2 107 Gros Ventre Summit 8750 3.5 3.6 97 3.9 4.2 93 Gunsight Pass 9820 3.9 3.5 111 4.0 4.8 83 Lewis Lake Divide 7850 10.0 6.7 149 12.5 10.4 120 Loomis Park 8240 3.1 3.2 97 3.6 5.0 72 Phillips Bench 8200 7.4 5.7 130 8.0 8.4 95 Salt River Summit 7640 3.5 2.2 159 3.5 4.5 78 Snake River Station 6920 5.4 3.4 159 7.3 7.1 103 Somsen Ranch 6800 4.6 2.3 200 5.6 5.4 104 Spring Creek Divide 9000 5.2 5.2 100 5.9 6.6 89 Thumb Divide 7980 7.1 3.6 197 7.3 5.8 126 Togwotee Pass 9580 7.0 7.2 97 7.1 8.0 89 Triple Peak 8500 5.1 5.2 98 5.0 7.0 71 Two Ocean Plateau 9240 11.5 8.6 134 9.0 8.6 105 Willow Creek 8080 7.7 5.9 131 8.7 10.4 84 Younts Peak 8350 4.2 4.3 98 4.3 5.2 83 ----- ----- Basin Index (%) 122 90 MADISON HEADWATERS IN WYOMING Black Bear 8170 12.7 9.0 141 13.8 11.0 125 Canyon 7870 5.1 -M * 6.6 -M * Madison Plateau 7750 9.1 5.1 178 11.0 8.2 134 West Yellowstone 6700 5.0 2.2 227 7.5 4.5 167 Whiskey Creek 6800 6.1 3.2 191 9.5 6.0 158 ----- ----- Basin Index (%) 169 141 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 5.8 6.6 88 4.8 6.1 79 Canyon 7870 5.1 -M * 6.6 -M * Evening Star 9200 7.3 7.6 96 9.2 9.6 96 Fisher Creek 9100 10.3 9.2 112 11.5 10.4 111 Monument Peak 8850 6.4 5.8 110 8.6 7.2 119 Northeast Entrance 7350 2.9 1.9 153 5.2 4.2 124 Parker Peak 9400 6.7 6.7 100 7.9 6.7 118 Sylvan Lake 8420 6.3 5.1 124 8.6 8.2 105 Thumb Divide 7980 7.1 3.6 197 7.3 5.8 126 Two Ocean Plateau 9240 11.5 8.6 134 9.0 8.6 105 White Mill 8700 8.0 6.4 125 8.4 7.6 111 Wolverine 7650 3.4 2.6 131 4.8 4.2 114 ----- ----- Basin Index (%) 118 109 WIND RIVER Burroughs Creek 8750 -M -M * 3.8 -M * Castle Creek 8400 1.7 2.0 85 2.4 2.9 83 Cold Springs 9630 2.6 2.5 104 3.8 3.5 109 Deer Park 9700 6.3 4.2 150 6.7 5.6 120 Hobbs Park 10100 5.0 4.4 114 4.6 4.4 105 Kirwin 9550 2.6 3.6 72 4.0 4.2 95 Little Warm 9370 3.5 2.9 121 4.1 4.2 98 South Pass 9040 4.7 4.0 118 3.5 4.9 71 St. Lawrence Alt 8620 1.7 -M * 3.1 -M * Togwotee Pass 9580 7.0 7.2 97 7.1 8.0 89 Townsend Creek 8700 2.6 2.6 100 3.3 4.2 79 ----- ----- Basin Index (%) 108 94 BIGHORN BASIN Bald Mtn. 9380 5.1 6.2 82 4.9 5.5 89 Bear Trap Meadow 8200 2.7 1.6 169 3.5 3.0 117 Bone Springs Div 9350 3.1 5.2 60 3.9 5.0 78 Grave Springs 8550 3.2 1.9 168 3.9 3.2 122 Kirwin 9550 2.6 3.6 72 4.0 4.2 95 Marquette 8760 1.8 2.4 75 2.5 3.8 66 Middle Powder 7760 4.7 2.4 196 4.1 3.8 108 Owl Creek 8975 2.3 1.8 128 2.8 2.6 108 Powder River Pass 9480 3.2 3.6 89 4.3 4.4 98 Shell Creek 9580 3.6 5.1 71 4.8 4.8 100 Timber Creek 7950 1.4 1.6 88 1.7 3.2 53 ----- ----- Basin Index (%) 95 93 SHOSHONE RIVER Blackwater 9780 7.2 7.7 94 6.7 7.1 94 Evening Star 9200 7.3 7.6 96 9.2 9.6 96 Marquette 8760 1.8 2.4 75 2.5 3.8 66 Sylvan Lake 8420 6.3 5.1 124 8.6 8.2 105 Sylvan Road 7120 3.6 3.4 106 5.7 6.4 89 Younts Peak 8350 4.2 4.3 98 4.3 5.2 83 ----- ----- Basin Index (%) 100 92 POWDER RIVER Bear Trap Meadow 8200 2.7 1.6 169 3.5 3.0 117 Cloud Peak Reservoir 9860 4.0 4.2 95 4.4 4.8 92 Grave Springs 8550 3.2 1.9 168 3.9 3.2 122 Hansen Sawmill 8360 2.3 1.9 121 2.7 3.2 84 Middle Powder 7760 4.7 2.4 196 4.1 3.8 108 Powder River Pass 9480 3.2 3.6 89 4.3 4.4 98 Soldier Park 8720 .6 1.4 43 2.2 3.4 65 ----- ----- Basin Index (%) 122 97 TONGUE RIVER Big Goose 7990 2.7 2.4 112 3.6 4.0 90 Bone Springs Div 9350 3.1 5.2 60 3.9 5.0 78 Burgess Junction 7880 4.0 3.0 133 5.4 4.2 129 Dome Lake 8880 2.0 3.2 62 3.8 4.4 86 Little Goose 8870 3.1 2.2 141 4.0 3.8 105 Sucker Creek 8880 3.8 3.5 109 5.4 4.8 112 Tie Creek 6870 2.4 1.3 185 4.8 4.2 114 ----- ----- Basin Index (%) 101 102 BELLE FOURCHE Blind Park 6890 2.0 1.8 111 3.0 3.6 83 Cole Canyon 5910 1.0 1.2 83 2.3 3.2 72 North Rapid Creek 6130 1.3 1.8 72 2.3 2.8 82 ----- ----- Basin Index (%) 90 79 CHEYENNE RIVER BASIN Blind Park 6890 2.0 1.8 111 3.0 3.6 83 North Rapid Creek 6130 1.3 1.8 72 2.3 2.8 82 ----- ----- Basin Index (%) 92 83 UPPER N. PLATTE Arapaho Ridge 10976 4.7 6.0 78 5.4 6.6 82 Blackhall Mtn 9839 6.2 7.6 82 7.3 9.5 77 Cinnabar Park 9707 2.9 5.4 54 5.2 7.1 73 Columbine 9167 4.1 4.6 89 4.8 6.8 71 Divide Peak 8730 4.6 4.7 98 6.4 6.6 97 Joe Wright 10158 4.6 5.7 81 6.8 8.0 85 Laprele Creek 8390 1.7 1.8 94 2.1 4.0 52 Med Bow 10512 6.9 -M * 7.6 -M * Never Summer 10323 6.4 5.4 119 4.0 5.8 69 North French Creek 10153 6.3 7.0 90 6.6 7.6 87 Old Battle 9860 6.3 7.6 83 7.8 9.4 83 Rawah 9069 3.7 3.0 123 5.0 5.6 89 Sage Creek Basin 7850 3.2 2.6 123 4.8 4.5 107 Sand Lake 10098 5.6 7.6 74 6.3 7.2 88 South Brush Creek 8495 3.5 2.8 125 3.7 4.8 77 Tower 10620 8.6 10.2 84 9.4 11.4 82 Webber Springs 9260 4.9 4.8 102 5.2 7.6 68 Whiskey Park 9020 7.1 5.4 131 7.4 8.2 90 Willow Creek Pass 9523 3.6 4.0 90 4.1 4.7 87 Zirkel 9338 4.8 5.8 83 6.4 9.1 70 ----- ----- Basin Index (%) 91 81 SWEETWATER Deer Park 9700 6.3 4.2 150 6.7 5.6 120 Larsen Creek 9000 1.2 1.7 71 3.6 4.4 82 South Pass 9040 4.7 4.0 118 3.5 4.9 71 ----- ----- Basin Index (%) 123 93 LOWER N. PLATTE Casper Mtn. 7920 2.7 3.3 82 3.0 4.8 62 Laprele Creek 8390 1.7 1.8 94 2.1 4.0 52 Reno Hill 8430 3.3 3.5 94 4.7 5.0 94 Windy Peak 7915 1.0 1.7 59 1.8 3.6 50 ----- ----- Basin Index (%) 84 67 LARAMIE RIVER Brooklyn Lake 10250 4.1 4.6 89 5.1 6.0 85 Cinnabar Park 9707 2.9 5.4 54 5.2 7.1 73 Crow Creek 8335 1.0 1.4 71 2.3 3.6 64 Deadman Hill 10239 4.3 5.2 83 4.0 5.4 74 Rawah 9069 3.7 3.0 123 5.0 5.6 89 Roach 9740 4.4 4.4 100 5.4 5.9 92 Windy Peak 7915 1.0 1.7 59 1.8 3.6 50 ----- ----- Basin Index (%) 83 77 S. PLATTE Crow Creek 8335 1.0 1.4 71 2.3 3.6 64 ----- ----- Basin Index (%) 71 64 LITTLE SNAKE RIVER Battle Mountain 7498 3.3 2.0 165 5.9 4.6 128 Divide Peak 8730 4.6 4.7 98 6.4 6.6 97 Elk River 8739 5.0 3.3 152 4.9 5.4 91 Elkhead Divide 8800 5.0 -M * -M -M * Little Snake River 8928 5.1 5.5 93 8.4 9.8 86 Old Battle 9860 6.3 7.6 83 7.8 9.4 83 Sage Creek Basin 7850 3.2 2.6 123 4.8 4.5 107 Sandstone RS 8152 3.8 2.2 173 5.1 5.2 98 Whiskey Park 9020 7.1 5.4 131 7.4 8.2 90 ----- ----- Basin Index (%) 115 94 UPPER GREEN RIVER Big Sandy Opening 9080 3.2 3.6 89 3.3 4.0 82 Blind Bull Sum 8650 4.5 5.0 90 3.6 5.5 65 East Rim Divide 7930 1.9 2.2 86 2.1 3.6 58 Elkhart Park G.S. 9400 2.7 3.2 84 2.3 4.2 55 Gros Ventre Summit 8750 3.5 3.6 97 3.9 4.2 93 Gunsight Pass 9820 3.9 3.5 111 4.0 4.8 83 Indian Creek 9425 5.4 5.6 96 4.5 5.6 80 Kendall R.S. 7740 2.3 2.6 88 3.0 4.2 71 Larsen Creek 9000 1.2 1.7 71 3.6 4.4 82 Loomis Park 8240 3.1 3.2 97 3.6 5.0 72 New Fork Lake 8340 2.3 2.6 88 -M 3.4 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 2.1 2.6 81 3.2 4.1 78 Spring Creek Divide 9000 5.2 5.2 100 5.9 6.6 89 Triple Peak 8500 5.1 5.2 98 5.0 7.0 71 ----- ----- Basin Index (%) 93 76 LOWER GREEN RIVER Blacks Fork Jct 8869 4.0 1.8 222 4.3 3.7 116 Buck Pasture 9632 4.8 -M * 6.0 -M * EF Blacks Fork GS 9360 3.3 2.2 150 3.4 3.8 89 Hams Fork 7840 2.2 2.2 100 2.6 3.6 72 Henrys Fork 10182 -M -M * 4.5 -M * Hewinta 9500 2.3 2.0 115 4.1 4.6 89 Hickerson Park 9122 2.2 1.6 138 3.7 3.8 97 Hole-in-Rock 9168 1.6 1.6 100 3.1 3.6 86 Indian Creek 9425 5.4 5.6 96 4.5 5.6 80 Kelley R.S. 8180 3.3 3.2 103 3.8 4.8 79 Spirit Lk 10235 5.0 3.2 156 5.1 6.1 84 Steel Creek Park 10158 5.5 3.8 145 5.5 5.3 104 ----- ----- Basin Index (%) 128 89 UPPER BEAR RIVER Bear River RS 8777 3.0 1.9 158 4.0 3.8 105 Bug Lake 7987 5.8 3.6 161 -M 5.1 * Burts Miller Ranch 8000 2.4 1.2 200 4.8 2.6 185 Chalk Creek #1 9171 6.3 5.0 126 7.0 6.6 106 Giveout 6930 1.7 1.4 121 2.9 3.8 76 Hayden Fork 9130 4.3 2.9 148 6.6 5.8 114 Kelley R.S. 8180 3.3 3.2 103 3.8 4.8 79 Lily Lake 9133 3.4 2.6 131 4.3 5.2 83 Monte Cristo 8932 8.3 5.2 160 9.0 6.6 136 Salt River Summit 7640 3.5 2.2 159 3.5 4.5 78 Spring Creek Divide 9000 5.2 5.2 100 5.9 6.6 89 Trial Lake 9992 6.4 4.6 139 7.1 5.6 127 ----- ----- Basin Index (%) 137 105 ---------------------------------------------------------------------------- -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.