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: JANUARY 14 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 15.2 9.3 163 22.4 11.9 188 Black Bear 8170 21.0 20.4 103 29.9 21.0 142 Blind Bull Sum 8650 21.3 12.0 178 15.9 11.0 145 Cottonwood Creek 7670 14.7 10.0 147 19.9 13.6 146 East Rim Divide 7930 10.1 5.4 187 12.4 6.6 188 Grand Targhee 9260 26.9 21.0 128 24.9 17.8 140 Granite Creek 6770 14.8 8.2 180 20.5 11.5 178 Grassy Lake 7265 21.9 16.2 135 32.7 20.2 162 Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.1 190 Gunsight Pass 9820 10.0 7.2 139 14.0 7.7 182 Lewis Lake Divide 7850 18.8 16.1 117 27.5 19.8 139 Phillips Bench 8200 17.2 14.2 121 26.2 15.5 169 Salt River Summit 7760 11.1 6.0 185 16.5 9.0 183 Snake River Station 6920 13.7 8.8 156 21.5 13.1 164 Spring Creek Divide 9000 19.2 11.6 166 22.5 13.2 170 Thumb Divide 7980 9.8 7.8 126 15.2 10.4 146 Togwotee Pass 9580 17.4 12.8 136 21.2 13.7 155 Two Ocean Plateau 9240 22.9 15.3 150 23.3 15.0 155 Willow Creek 8380 18.4 13.6 135 27.7 18.5 150 Younts Peak 8350 11.9 8.2 145 16.0 9.1 176 ----- ----- Basin Index (%) 141 159 MADISON-GALLATIN Black Bear 8170 21.0 20.4 103 29.9 21.0 142 Canyon 7870 9.2 7.0 131 15.2 9.1 167 Madison Plateau 7750 12.5 11.8 106 21.4 14.8 145 West Yellowstone 6700 7.0 6.0 117 14.6 8.2 178 Whiskey Creek 6800 7.9 8.2 96 15.8 11.4 139 ----- ----- Basin Index (%) 108 150 YELLOWSTONE Beartooth Lake 9360 15.0 12.1 124 11.3 10.9 104 Burnt Mtn 5880 4.4 2.0 220 8.4 7.3 115 Canyon 7870 9.2 7.0 131 15.2 9.1 167 Cole Creek 7850 6.0 7.0 86 5.1 6.9 74 Evening Star 9200 18.0 13.8 130 24.2 15.5 156 Fisher Creek 9100 17.6 17.8 99 22.8 17.7 129 Northeast Entrance 7350 6.4 5.1 125 11.5 7.1 162 Parker Peak 9400 -M 11.3 * 18.6 9.8 190 Sylvan Lake 8420 12.4 11.0 113 22.7 12.9 176 Thumb Divide 7980 9.8 7.8 126 15.2 10.4 146 Two Ocean Plateau 9240 22.9 15.3 150 23.3 15.0 155 White Mill 8700 14.6 12.3 119 17.6 13.3 132 Wolverine 7650 9.3 5.8 160 12.3 7.2 171 ----- ----- Basin Index (%) 124 145 WIND RIVER Burroughs Creek 8750 11.7 -M * 14.1 -M * Castle Creek 8400 6.6 -M * 8.6 -M * Cold Springs 9630 5.9 3.8 155 8.4 5.6 150 Deer Park 9700 17.2 7.1 242 20.8 10.7 194 Hobbs Park 10100 11.7 7.2 162 11.7 6.9 170 Kirwin 9550 9.3 5.2 179 12.2 6.5 188 Little Warm 9370 6.4 5.4 119 11.5 7.1 162 Owl Creek 8975 3.4 2.9 117 5.0 3.2 156 South Pass 9040 16.4 7.5 219 16.0 9.6 167 St. Lawrence Alt 8620 3.1 3.4 91 7.1 4.7 151 Togwotee Pass 9580 17.4 12.8 136 21.2 13.7 155 Townsend Creek 8700 6.2 4.3 144 9.0 6.4 141 ----- ----- Basin Index (%) 163 165 BIGHORN BASIN Bald Mtn. 9380 11.7 9.8 119 10.2 9.3 110 Bear Trap Meadow 8200 2.7 2.8 96 4.3 4.6 93 Bone Springs Div 9350 9.1 8.4 108 9.4 8.3 113 Grave Springs 8550 3.2 4.3 74 4.5 5.7 79 Kirwin 9550 9.3 5.2 179 12.2 6.5 188 Marquette 8760 4.4 -M * 8.0 -M * Middle Powder 7760 4.1 5.8 71 4.8 6.6 73 Owl Creek 8975 3.4 2.9 117 5.0 3.2 156 Powder River Pass 9480 3.4 5.7 60 6.1 6.8 90 Shell Creek 9580 9.5 8.0 119 7.6 7.5 101 Timber Creek 7950 3.2 2.4 133 4.6 4.2 110 ----- ----- Basin Index (%) 108 110 SHOSHONE RIVER Blackwater 9780 18.9 12.7 149 22.6 11.5 197 Evening Star 9200 18.0 13.8 130 24.2 15.5 156 Marquette 8760 4.4 -M * 8.0 -M * Sylvan Road 7120 9.0 6.4 141 19.2 10.5 183 Younts Peak 8350 11.9 8.2 145 16.0 9.1 176 ----- ----- Basin Index (%) 141 176 POWDER RIVER Bear Trap Meadow 8200 2.7 2.8 96 4.3 4.6 93 Cloud Peak Reservoir 9860 6.6 7.1 93 8.3 7.0 119 Grave Springs 8550 3.2 4.3 74 4.5 5.7 79 Hansen Sawmill 8360 4.3 3.5 123 6.1 4.5 136 Middle Powder 7760 4.1 5.8 71 4.8 6.6 73 Powder River Pass 9480 3.4 5.7 60 6.1 6.8 90 Soldier Park 8720 6.9 -M * 6.3 -M * ----- ----- Basin Index (%) 83 97 TONGUE RIVER Big Goose 7990 4.9 4.2 117 6.0 5.8 103 Bone Springs Div 9350 9.1 8.4 108 9.4 8.3 113 Burgess Junction 7880 5.1 5.5 93 6.3 6.6 95 Dome Lake 8880 6.1 5.9 103 7.6 7.4 103 Little Goose 8870 5.3 -M * 7.4 -M * Sucker Creek 8880 5.9 6.2 95 6.3 7.6 83 Tie Creek 6870 3.6 2.5 144 6.5 6.3 103 ----- ----- Basin Index (%) 106 100 BELLE FOURCHE Cole Canyon 5910 3.1 2.6 119 4.0 5.1 78 ----- ----- Basin Index (%) 119 78 CHEYENNE RIVER BASIN Blind Park 6890 3.6 4.0 90 4.7 6.8 69 North Rapid Creek 6130 3.8 3.6 106 4.1 5.6 73 ----- ----- Basin Index (%) 97 71 UPPER N. PLATTE Arapaho Ridge 10960 17.7 11.0 161 18.5 12.8 145 Blackhall Mtn 9820 23.3 -M * 24.3 -M * Columbine 9160 17.5 12.1 145 19.1 13.9 137 Divide Peak 8880 11.9 10.1 118 14.5 11.8 123 Joe Wright 10120 13.7 10.9 126 19.3 13.9 139 Laprele Creek 8375 6.4 4.7 136 6.2 6.6 94 Med Bow 10500 24.3 -M * 23.4 -M * North French Creek 10130 15.4 13.7 112 17.0 14.4 118 Never Summer 10280 -M 10.4 * -M -M * Old Battle 10000 22.7 15.4 147 24.7 19.2 129 Rawah 9020 9.3 5.3 175 11.9 8.4 142 Sage Creek Basin 7850 9.7 7.1 137 10.2 8.6 119 Sand Lake 10050 18.2 14.2 128 17.7 13.0 136 South Brush Creek 8440 6.5 6.0 108 7.8 8.3 94 Tower 10500 27.3 22.0 124 30.5 21.8 140 Webber Springs 9250 18.5 11.7 158 22.0 14.5 152 Willow Creek Pass 9540 12.3 6.2 198 13.1 7.3 179 Zirkel 9340 -M 15.3 * 23.1 16.5 140 ----- ----- Basin Index (%) 138 134 SWEETWATER Deer Park 9700 17.2 7.1 242 20.8 10.7 194 Larsen Creek 9000 11.5 5.9 195 15.0 -M * South Pass 9040 16.4 7.5 219 16.0 9.6 167 ----- ----- Basin Index (%) 220 181 LOWER N. PLATTE Casper Mtn. 7900 5.8 6.7 87 6.1 8.1 75 Laprele Creek 8375 6.4 4.7 136 6.2 6.6 94 Reno Hill 8400 -M 6.5 * -M 7.9 * Windy Peak 7900 5.0 3.5 143 5.7 5.7 100 ----- ----- Basin Index (%) 115 88 LARAMIE RIVER Brooklyn Lake 10240 15.2 10.4 146 14.1 10.8 131 Cinnabar Park 9574 12.5 11.5 109 15.3 14.2 108 Crow Creek 8330 4.1 4.9 84 5.6 6.0 93 Deadman Hill 10220 13.6 8.0 170 13.4 8.9 151 Rawah 9020 9.3 5.3 175 11.9 8.4 142 Roach 9700 11.5 8.5 135 13.7 10.3 133 ----- ----- Basin Index (%) 136 126 S. PLATTE Black Mountain 8920 6.9 -M * 8.2 -M * Crow Creek 8330 4.1 4.9 84 5.6 6.0 93 Deadman Hill 10220 13.6 8.0 170 13.4 8.9 151 ----- ----- Basin Index (%) 137 128 LITTLE SNAKE RIVER Battle Mountain 7440 7.9 5.3 149 10.4 8.3 125 Divide Peak 8880 11.9 10.1 118 14.5 11.8 123 Elk River 8700 14.7 8.9 165 14.5 10.9 133 Little Snake River 8915 20.8 12.1 172 26.1 17.8 147 Old Battle 10000 22.7 15.4 147 24.7 19.2 129 Sage Creek Basin 7850 9.7 7.1 137 10.2 8.6 119 Sandstone RS 8150 10.2 6.4 159 10.4 10.2 102 Whiskey Park 8950 18.0 12.4 145 20.7 14.9 139 ----- ----- Basin Index (%) 149 129 UPPER GREEN RIVER Big Sandy Opening 9080 12.3 7.0 176 14.8 7.3 203 Blind Bull Sum 8650 21.3 12.0 178 15.9 11.0 145 East Rim Divide 7930 10.1 5.4 187 12.4 6.6 188 Elkhart Park G.S. 9400 9.1 6.2 147 14.6 7.4 197 Gros Ventre Summit 8750 9.3 7.4 126 13.5 7.1 190 Gunsight Pass 9820 10.0 7.2 139 14.0 7.7 182 Kendall R.S. 7740 11.7 6.4 183 16.0 7.9 203 Loomis Park 8240 14.0 7.6 184 19.3 9.6 201 New Fork Lake 8340 9.3 5.4 172 9.8 6.1 161 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 11.2 6.3 178 15.9 7.9 201 Spring Creek Divide 9000 19.2 11.6 166 22.5 13.2 170 Triple Peak 8500 20.7 11.1 186 23.0 13.5 170 ----- ----- Basin Index (%) 169 182 LOWER GREEN RIVER Blacks Fork Jct 8870 7.7 -M * 9.8 -M * Buck Pasture 9700 11.8 -M * 13.7 -M * EF Blacks Fork GS 9360 8.8 -M * 9.5 -M * Hams Fork 7840 10.2 5.6 182 12.2 6.3 194 Hewinta 9519 8.0 4.8 167 10.4 7.4 141 Hickerson Park 9145 5.6 3.2 175 5.8 5.5 105 Hole-in-Rock 9150 4.6 3.3 139 6.5 5.2 125 Indian Creek 9425 19.8 11.9 166 -M 12.0 * Kelley R.S. 8180 13.9 7.3 190 19.0 10.0 190 Spirit Lk 10235 8.5 -M * 10.1 -M * Steel Creek Park 10200 10.9 7.2 151 12.5 8.6 145 ----- ----- Basin Index (%) 169 154 UPPER BEAR RIVER Bear River RS 8777 9.0 -M * 10.8 -M * Bug Lake 7950 18.9 8.3 228 18.2 10.6 172 Burts Miller Ranch 8000 4.7 -M * 5.3 -M * Chalk Creek #1 8993 19.5 11.4 171 -M 13.5 * Hayden Fork 9212 13.9 6.9 201 -M 11.3 * Kelley R.S. 8180 13.9 7.3 190 19.0 10.0 190 Lily Lake 9156 10.3 6.3 163 12.0 9.2 130 Monte Cristo 8960 18.7 13.3 141 -M 14.0 * Salt River Summit 7760 11.1 6.0 185 16.5 9.0 183 ----- ----- Basin Index (%) 179 169* ----------------------------------------------------------------------------- -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.