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 TUESDAY: JANUARY 10 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 12.9 8.5 152 20.5 11.4 180 Black Bear 8170 18.8 19.6 96 27.9 20.2 138 Blind Bull Sum 8650 18.2 11.1 164 16.1 10.5 153 Cottonwood Creek 7670 13.2 9.3 142 19.5 12.9 151 East Rim Divide 7930 9.2 5.1 180 11.6 6.3 184 Grand Targhee 9260 25.3 20.4 124 23.6 17.3 136 Granite Creek 6770 13.2 7.5 176 19.3 10.8 179 Grassy Lake 7265 18.6 15.2 122 30.2 19.4 156 Gros Ventre Summit 8750 8.2 7.0 117 12.4 6.7 185 Gunsight Pass 9820 8.9 7.0 127 13.0 7.3 178 Lewis Lake Divide 7850 15.9 15.2 105 27.0 19.1 141 Phillips Bench 8200 15.1 13.0 116 24.3 14.8 164 Salt River Summit 7760 8.9 5.6 159 14.6 8.6 170 Snake River Station 6920 12.1 8.0 151 21.0 12.5 168 Spring Creek Divide 9000 16.7 11.1 150 21.0 12.5 168 Thumb Divide 7980 8.5 7.3 116 14.2 10.0 142 Togwotee Pass 9580 16.0 12.4 129 19.7 13.0 152 Two Ocean Plateau 9240 20.5 14.4 142 21.4 14.2 151 Willow Creek 8380 16.0 12.7 126 26.7 17.6 152 Younts Peak 8350 10.1 7.6 133 14.6 8.7 168 ----- ----- Basin Index (%) 131 157 MADISON-GALLATIN Black Bear 8170 18.8 19.6 96 27.9 20.2 138 Canyon 7870 8.2 6.5 126 14.2 8.8 161 Madison Plateau 7750 11.1 11.2 99 20.5 14.2 144 West Yellowstone 6700 6.7 5.6 120 14.0 8.0 175 Whiskey Creek 6800 7.3 7.9 92 14.9 11.0 135 ----- ----- Basin Index (%) 103 147 YELLOWSTONE Beartooth Lake 9360 13.8 11.3 122 10.3 10.4 99 Burnt Mtn 5880 4.2 1.9 221 8.1 7.1 114 Canyon 7870 8.2 6.5 126 14.2 8.8 161 Cole Creek 7850 5.8 6.7 87 5.1 6.7 76 Evening Star 9200 16.0 13.1 122 22.2 14.9 149 Fisher Creek 9100 16.3 17.0 96 21.5 17.0 126 Northeast Entrance 7350 5.5 4.9 112 10.9 6.9 158 Parker Peak 9400 14.3 11.1 129 17.0 9.5 179 Sylvan Lake 8420 10.9 10.6 103 21.4 12.4 173 Thumb Divide 7980 8.5 7.3 116 14.2 10.0 142 Two Ocean Plateau 9240 20.5 14.4 142 21.4 14.2 151 White Mill 8700 13.3 11.6 115 16.7 12.7 131 Wolverine 7650 8.1 5.5 147 11.4 6.9 165 ----- ----- Basin Index (%) 119 141 WIND RIVER Burroughs Creek 8750 10.4 -M * 12.9 -M * Castle Creek 8400 5.8 -M * 7.9 -M * Cold Springs 9630 5.3 3.6 147 7.5 5.4 139 Deer Park 9700 -M 7.0 * -M 10.1 * Hobbs Park 10100 10.5 7.1 148 10.4 6.7 155 Kirwin 9550 8.3 4.8 173 11.3 6.2 182 Little Warm 9370 5.7 5.1 112 10.4 6.8 153 Owl Creek 8975 3.0 2.8 107 4.5 3.1 145 South Pass 9040 -M 7.2 * 12.9 9.1 142 St. Lawrence Alt 8620 2.8 3.3 85 6.7 4.6 146 Togwotee Pass 9580 16.0 12.4 129 19.7 13.0 152 Townsend Creek 8700 5.5 4.2 131 8.1 6.2 131 ----- ----- Basin Index (%) 132 150 BIGHORN BASIN Bald Mtn. 9380 10.8 9.4 115 9.6 8.8 109 Bear Trap Meadow 8200 2.7 2.7 100 4.5 4.5 100 Bone Springs Div 9350 8.2 8.0 102 8.6 7.9 109 Grave Springs 8550 3.3 4.0 82 4.6 5.5 84 Kirwin 9550 8.3 4.8 173 11.3 6.2 182 Marquette 8760 3.7 -M * 7.2 -M * Middle Powder 7760 4.1 5.5 75 5.0 6.4 78 Owl Creek 8975 3.0 2.8 107 4.5 3.1 145 Powder River Pass 9480 3.1 5.5 56 6.1 6.6 92 Shell Creek 9580 8.9 7.6 117 7.5 7.3 103 Timber Creek 7950 3.2 2.3 139 4.5 4.1 110 ----- ----- Basin Index (%) 106 110 SHOSHONE RIVER Blackwater 9780 16.9 11.9 142 20.6 11.0 187 Evening Star 9200 16.0 13.1 122 22.2 14.9 149 Marquette 8760 3.7 -M * 7.2 -M * Sylvan Road 7120 7.9 6.1 130 17.8 10.0 178 Younts Peak 8350 10.1 7.6 133 14.6 8.7 168 ----- ----- Basin Index (%) 132 169 POWDER RIVER Bear Trap Meadow 8200 2.7 2.7 100 4.5 4.5 100 Cloud Peak Reservoir 9860 6.2 6.8 91 8.1 6.7 121 Grave Springs 8550 3.3 4.0 82 4.6 5.5 84 Hansen Sawmill 8360 4.0 3.3 121 5.7 4.4 130 Middle Powder 7760 4.1 5.5 75 5.0 6.4 78 Powder River Pass 9480 3.1 5.5 56 6.1 6.6 92 Soldier Park 8720 6.6 -M * 6.2 -M * ----- ----- Basin Index (%) 84 100 TONGUE RIVER Big Goose 7990 4.7 4.0 118 5.7 5.6 102 Bone Springs Div 9350 8.2 8.0 102 8.6 7.9 109 Burgess Junction 7880 4.7 5.1 92 6.3 6.4 98 Dome Lake 8880 5.6 5.7 98 7.2 7.2 100 Little Goose 8870 5.1 -M * 7.2 -M * Sucker Creek 8880 5.5 5.9 93 6.3 7.3 86 Tie Creek 6870 3.3 2.3 143 6.3 6.1 103 ----- ----- Basin Index (%) 103 100 BELLE FOURCHE Cole Canyon 5910 3.0 2.5 120 4.2 5.0 84 ----- ----- Basin Index (%) 120 84 CHEYENNE RIVER BASIN Blind Park 6890 3.6 3.8 95 4.8 6.6 73 North Rapid Creek 6130 3.8 3.5 109 4.2 5.5 76 ----- ----- Basin Index (%) 101 74 UPPER N. PLATTE Arapaho Ridge 10960 15.7 10.7 147 16.7 12.2 137 Blackhall Mtn 9820 18.9 -M * -M -M * Columbine 9160 15.7 11.0 143 17.6 13.2 133 Divide Peak 8880 9.7 9.7 100 12.1 11.4 106 Joe Wright 10120 12.8 10.5 122 18.1 13.4 135 Laprele Creek 8375 5.9 4.5 131 5.6 6.4 88 Med Bow 10500 21.7 -M * 21.2 -M * North French Creek 10130 13.8 13.0 106 15.5 13.6 114 Never Summer 10280 -M 10.1 * -M -M * Old Battle 10000 18.3 14.8 124 20.0 18.3 109 Rawah 9020 8.4 5.1 165 10.8 8.1 133 Sage Creek Basin 7850 7.9 6.7 118 8.5 8.3 102 Sand Lake 10050 15.9 13.5 118 15.2 12.5 122 South Brush Creek 8440 6.0 5.6 107 7.4 8.0 92 Tower 10500 22.7 20.5 111 25.6 20.7 124 Webber Springs 9250 14.9 11.2 133 18.4 13.9 132 Willow Creek Pass 9540 10.6 6.0 177 11.7 7.1 165 Zirkel 9340 21.0 13.4 157 22.7 15.8 144 ----- ----- Basin Index (%) 128 124 SWEETWATER Deer Park 9700 -M 7.0 * -M 10.1 * Larsen Creek 9000 9.9 5.6 177 13.6 -M * South Pass 9040 -M 7.2 * 12.9 9.1 142 ----- ----- Basin Index (%) 177* 142* LOWER N. PLATTE Casper Mtn. 7900 5.8 6.6 88 6.1 7.9 77 Laprele Creek 8375 5.9 4.5 131 5.6 6.4 88 Reno Hill 8400 -M 6.4 * -M 7.7 * Windy Peak 7900 4.4 3.3 133 5.3 5.6 95 ----- ----- Basin Index (%) 112 85 LARAMIE RIVER Brooklyn Lake 10240 13.0 9.6 135 12.1 10.4 116 Cinnabar Park 9574 11.1 10.9 102 13.8 13.3 104 Crow Creek 8330 3.9 4.8 81 5.5 5.9 93 Deadman Hill 10220 11.8 7.8 151 11.7 8.6 136 Rawah 9020 8.4 5.1 165 10.8 8.1 133 Roach 9700 9.3 7.9 118 11.3 9.9 114 ----- ----- Basin Index (%) 125 116 S. PLATTE Black Mountain 8920 6.2 -M * 7.5 -M * Crow Creek 8330 3.9 4.8 81 5.5 5.9 93 Deadman Hill 10220 11.8 7.8 151 11.7 8.6 136 ----- ----- Basin Index (%) 125 119 LITTLE SNAKE RIVER Battle Mountain 7440 7.1 5.0 142 9.7 8.0 121 Divide Peak 8880 9.7 9.7 100 12.1 11.4 106 Elk River 8700 12.4 8.4 148 12.7 10.3 123 Little Snake River 8915 17.1 11.1 154 22.3 16.9 132 Old Battle 10000 18.3 14.8 124 20.0 18.3 109 Sage Creek Basin 7850 7.9 6.7 118 8.5 8.3 102 Sandstone RS 8150 8.6 5.7 151 8.6 9.7 89 Whiskey Park 8950 15.2 11.2 136 18.2 13.9 131 ----- ----- Basin Index (%) 133 116 UPPER GREEN RIVER Big Sandy Opening 9080 11.2 6.9 162 13.8 7.0 197 Blind Bull Sum 8650 18.2 11.1 164 16.1 10.5 153 East Rim Divide 7930 9.2 5.1 180 11.6 6.3 184 Elkhart Park G.S. 9400 8.1 6.0 135 13.4 7.1 189 Gros Ventre Summit 8750 8.2 7.0 117 12.4 6.7 185 Gunsight Pass 9820 8.9 7.0 127 13.0 7.3 178 Kendall R.S. 7740 10.1 5.8 174 14.4 7.4 195 Loomis Park 8240 12.4 7.2 172 17.5 9.2 190 New Fork Lake 8340 8.4 5.2 162 8.8 5.8 152 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 10.0 6.0 167 14.7 7.5 196 Spring Creek Divide 9000 16.7 11.1 150 21.0 12.5 168 Triple Peak 8500 18.8 10.0 188 23.1 12.7 182 ----- ----- Basin Index (%) 159 180 LOWER GREEN RIVER Blacks Fork Jct 8870 7.8 -M * 8.9 -M * Buck Pasture 9700 10.5 -M * 12.8 -M * EF Blacks Fork GS 9360 8.0 -M * 9.0 -M * Hams Fork 7840 8.3 5.2 160 11.4 6.0 190 Hewinta 9519 7.2 4.5 160 9.6 7.1 135 Hickerson Park 9145 5.5 3.1 177 5.9 5.3 111 Hole-in-Rock 9150 4.5 3.2 141 6.4 5.0 128 Indian Creek 9425 16.9 11.3 150 16.5 11.3 146 Kelley R.S. 8180 11.7 7.0 167 17.0 9.5 179 Spirit Lk 10235 8.1 -M * 9.8 -M * Steel Creek Park 10200 10.1 6.7 151 11.8 8.3 142 ----- ----- Basin Index (%) 157 150 UPPER BEAR RIVER Bear River RS 8777 7.5 -M * 9.3 -M * Bug Lake 7950 14.5 7.4 196 15.4 10.1 152 Burts Miller Ranch 8000 4.0 -M * 4.8 -M * Chalk Creek #1 8993 16.1 10.9 148 15.8 13.0 122 Hayden Fork 9212 12.1 6.6 183 16.5 10.8 153 Kelley R.S. 8180 11.7 7.0 167 17.0 9.5 179 Lily Lake 9156 8.6 5.8 148 10.7 8.9 120 Monte Cristo 8960 14.9 12.4 120 16.1 13.4 120 Salt River Summit 7760 8.9 5.6 159 14.6 8.6 170 ----- ----- Basin Index (%) 156 143 ----------------------------------------------------------------------------- -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. ---------------------------------------------------------------------------- -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.