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 7 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 10.8 7.9 137 18.5 10.8 171 Black Bear 8170 16.1 19.0 85 25.3 19.5 130 Blind Bull Sum 8650 14.2 10.1 141 14.8 10.1 147 Cottonwood Creek 7670 10.7 9.0 119 17.2 12.2 141 East Rim Divide 7930 7.4 4.8 154 10.0 6.0 167 Grand Targhee 9260 24.2 19.1 127 22.6 16.6 136 Granite Creek 6770 10.1 7.0 144 16.3 10.3 158 Grassy Lake 7265 15.6 14.2 110 26.9 18.6 145 Gros Ventre Summit 8750 6.7 6.6 102 10.7 6.6 162 Gunsight Pass 9820 7.5 6.7 112 11.7 7.0 167 Lewis Lake Divide 7850 12.3 14.5 85 24.3 18.2 134 Phillips Bench 8200 11.6 12.1 96 21.4 14.1 152 Salt River Summit 7760 6.1 5.3 115 11.9 8.2 145 Snake River Station 6920 10.1 7.4 136 18.9 12.0 158 Spring Creek Divide 9000 13.5 10.8 125 18.8 11.9 158 Thumb Divide 7980 6.3 6.8 93 12.5 9.5 132 Togwotee Pass 9580 14.4 11.8 122 18.0 12.5 144 Two Ocean Plateau 9240 18.1 13.6 133 19.3 13.7 141 Willow Creek 8380 12.4 12.1 102 23.4 17.0 138 Younts Peak 8350 8.2 7.3 112 12.8 8.4 152 ----- ----- Basin Index (%) 115 146 MADISON-GALLATIN Black Bear 8170 16.1 19.0 85 25.3 19.5 130 Canyon 7870 7.0 6.1 115 13.3 8.5 156 Madison Plateau 7750 9.4 10.8 87 18.7 13.6 138 West Yellowstone 6700 5.3 5.3 100 13.1 7.7 170 Whiskey Creek 6800 5.7 7.5 76 13.6 10.6 128 ----- ----- Basin Index (%) 89 140 YELLOWSTONE Beartooth Lake 9360 12.0 10.7 112 9.9 9.9 100 Burnt Mtn 5880 3.9 1.9 205 7.8 7.0 111 Canyon 7870 7.0 6.1 115 13.3 8.5 156 Cole Creek 7850 5.4 6.5 83 4.8 6.6 73 Evening Star 9200 14.3 12.5 114 20.6 14.2 145 Fisher Creek 9100 13.8 16.4 84 19.1 16.3 117 Northeast Entrance 7350 4.9 4.7 104 9.9 6.7 148 Parker Peak 9400 12.3 10.8 114 15.6 9.2 170 Sylvan Lake 8420 10.2 10.1 101 20.3 12.0 169 Thumb Divide 7980 6.3 6.8 93 12.5 9.5 132 Two Ocean Plateau 9240 18.1 13.6 133 19.3 13.7 141 White Mill 8700 11.5 11.0 105 14.6 12.2 120 Wolverine 7650 7.0 5.4 130 10.6 6.7 158 ----- ----- Basin Index (%) 109 135 WIND RIVER Burroughs Creek 8750 8.6 -M * 11.1 -M * Castle Creek 8400 5.2 -M * 7.2 -M * Cold Springs 9630 4.5 3.4 132 7.1 5.2 137 Deer Park 9700 10.6 6.8 156 14.4 9.8 147 Hobbs Park 10100 8.6 7.0 123 9.4 6.6 142 Kirwin 9550 7.0 4.6 152 10.0 6.0 167 Little Warm 9370 4.8 4.9 98 9.7 6.6 147 Owl Creek 8975 2.8 2.7 104 4.3 3.0 143 South Pass 9040 9.7 6.9 141 10.0 8.9 112 St. Lawrence Alt 8620 2.1 3.2 66 6.1 4.5 136 Togwotee Pass 9580 14.4 11.8 122 18.0 12.5 144 Townsend Creek 8700 4.3 4.2 102 7.1 6.1 116 ----- ----- Basin Index (%) 124 139 BIGHORN BASIN Bald Mtn. 9380 10.5 9.2 114 9.2 8.5 108 Bear Trap Meadow 8200 2.5 2.7 93 4.1 4.4 93 Bone Springs Div 9350 7.8 7.8 100 8.2 7.6 108 Grave Springs 8550 3.0 3.8 79 4.4 5.4 81 Kirwin 9550 7.0 4.6 152 10.0 6.0 167 Marquette 8760 3.8 -M * 7.2 -M * Middle Powder 7760 3.9 5.3 74 4.5 6.3 71 Owl Creek 8975 2.8 2.7 104 4.3 3.0 143 Powder River Pass 9480 2.8 5.2 54 5.5 6.4 86 Shell Creek 9580 8.5 7.4 115 7.1 7.0 101 Timber Creek 7950 3.0 2.2 136 4.4 4.0 110 ----- ----- Basin Index (%) 102 105 SHOSHONE RIVER Blackwater 9780 15.5 11.3 137 18.9 10.7 177 Evening Star 9200 14.3 12.5 114 20.6 14.2 145 Marquette 8760 3.8 -M * 7.2 -M * Sylvan Road 7120 7.1 6.0 118 17.2 9.7 177 Younts Peak 8350 8.2 7.3 112 12.8 8.4 152 ----- ----- Basin Index (%) 122 162 POWDER RIVER Bear Trap Meadow 8200 2.5 2.7 93 4.1 4.4 93 Cloud Peak Reservoir 9860 5.6 6.6 85 7.6 6.6 115 Grave Springs 8550 3.0 3.8 79 4.4 5.4 81 Hansen Sawmill 8360 3.7 3.2 116 5.5 4.2 131 Middle Powder 7760 3.9 5.3 74 4.5 6.3 71 Powder River Pass 9480 2.8 5.2 54 5.5 6.4 86 Soldier Park 8720 6.1 -M * 5.9 -M * ----- ----- Basin Index (%) 80 95 TONGUE RIVER Big Goose 7990 4.4 3.9 113 5.6 5.5 102 Bone Springs Div 9350 7.8 7.8 100 8.2 7.6 108 Burgess Junction 7880 4.4 5.0 88 5.9 6.2 95 Dome Lake 8880 5.1 5.6 91 7.0 7.1 99 Little Goose 8870 4.8 -M * 6.8 -M * Sucker Creek 8880 5.2 5.6 93 5.7 7.1 80 Tie Creek 6870 3.2 2.3 139 6.1 5.9 103 ----- ----- Basin Index (%) 100 98 BELLE FOURCHE Cole Canyon 5910 2.9 2.4 121 3.9 4.8 81 ----- ----- Basin Index (%) 121 81 CHEYENNE RIVER BASIN Blind Park 6890 3.2 3.6 89 4.4 6.3 70 North Rapid Creek 6130 3.5 3.3 106 3.7 5.3 70 ----- ----- Basin Index (%) 97 70 UPPER N. PLATTE Arapaho Ridge 10960 13.7 10.3 133 14.9 11.8 126 Blackhall Mtn 9820 15.6 -M * 17.6 -M * Columbine 9160 13.0 9.9 131 14.6 12.5 117 Divide Peak 8880 8.5 9.4 90 11.1 11.1 100 Joe Wright 10120 9.0 10.1 89 15.0 13.0 115 Laprele Creek 8375 4.5 4.3 105 4.8 6.2 77 Med Bow 10500 19.2 -M * 19.2 -M * North French Creek 10130 12.0 12.6 95 14.1 13.1 108 Never Summer 10280 -M 9.7 * -M -M * Old Battle 10000 15.2 14.1 108 16.6 17.7 94 Rawah 9020 6.9 5.0 138 9.3 7.9 118 Sage Creek Basin 7850 6.8 6.4 106 7.6 8.1 94 Sand Lake 10050 13.6 12.9 105 13.3 12.0 111 South Brush Creek 8440 5.1 5.3 96 6.2 7.7 81 Tower 10500 18.5 19.4 95 21.5 19.9 108 Webber Springs 9250 11.9 10.7 111 16.4 13.4 122 Willow Creek Pass 9540 8.5 5.8 147 9.4 6.9 136 Zirkel 9340 17.1 11.7 146 20.4 15.1 135 ----- ----- Basin Index (%) 111 111 SWEETWATER Deer Park 9700 10.6 6.8 156 14.4 9.8 147 Larsen Creek 9000 8.0 5.4 148 11.9 -M * South Pass 9040 9.7 6.9 141 10.0 8.9 112 ----- ----- Basin Index (%) 148 130 LOWER N. PLATTE Casper Mtn. 7900 4.8 6.3 76 5.5 7.7 71 Laprele Creek 8375 4.5 4.3 105 4.8 6.2 77 Reno Hill 8400 -M 6.2 * -M 7.5 * Windy Peak 7900 3.6 3.2 112 4.8 5.4 89 ----- ----- Basin Index (%) 93 78 LARAMIE RIVER Brooklyn Lake 10240 10.9 8.9 122 10.3 9.9 104 Cinnabar Park 9574 9.6 10.2 94 12.2 12.7 96 Crow Creek 8330 3.7 4.8 77 5.4 5.7 95 Deadman Hill 10220 10.0 7.5 133 10.2 8.3 123 Rawah 9020 6.9 5.0 138 9.3 7.9 118 Roach 9700 7.7 7.4 104 9.3 9.6 97 ----- ----- Basin Index (%) 111 105 S. PLATTE Black Mountain 8920 5.5 -M * 6.8 -M * Crow Creek 8330 3.7 4.8 77 5.4 5.7 95 Deadman Hill 10220 10.0 7.5 133 10.2 8.3 123 ----- ----- Basin Index (%) 111 111 LITTLE SNAKE RIVER Battle Mountain 7440 6.4 4.8 133 -M 7.6 * Divide Peak 8880 8.5 9.4 90 11.1 11.1 100 Elk River 8700 10.7 7.9 135 11.8 9.9 119 Little Snake River 8915 14.1 10.2 138 19.4 16.2 120 Old Battle 10000 15.2 14.1 108 16.6 17.7 94 Sage Creek Basin 7850 6.8 6.4 106 7.6 8.1 94 Sandstone RS 8150 7.2 5.3 136 7.4 9.3 80 Whiskey Park 8950 12.4 10.4 119 16.3 13.3 123 ----- ----- Basin Index (%) 119 105 UPPER GREEN RIVER Big Sandy Opening 9080 9.1 6.7 136 11.9 6.8 175 Blind Bull Sum 8650 14.2 10.1 141 14.8 10.1 147 East Rim Divide 7930 7.4 4.8 154 10.0 6.0 167 Elkhart Park G.S. 9400 6.1 5.9 103 11.7 6.9 170 Gros Ventre Summit 8750 6.7 6.6 102 10.7 6.6 162 Gunsight Pass 9820 7.5 6.7 112 11.7 7.0 167 Kendall R.S. 7740 8.0 5.3 151 12.4 7.1 175 Loomis Park 8240 10.1 6.9 146 15.4 8.8 175 New Fork Lake 8340 6.6 5.0 132 7.4 5.6 132 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 7.1 5.8 122 12.2 7.2 169 Spring Creek Divide 9000 13.5 10.8 125 18.8 11.9 158 Triple Peak 8500 15.1 9.1 166 19.9 12.1 164 ----- ----- Basin Index (%) 133 163 LOWER GREEN RIVER Blacks Fork Jct 8870 5.5 -M * 7.8 -M * Buck Pasture 9700 8.5 -M * 11.9 -M * EF Blacks Fork GS 9360 8.2 -M * 6.8 -M * Hams Fork 7840 6.0 5.0 120 9.9 5.7 174 Hewinta 9519 6.0 4.1 146 8.3 7.0 119 Hickerson Park 9145 4.9 3.0 163 5.0 5.2 96 Hole-in-Rock 9150 3.7 3.1 119 5.5 4.9 112 Indian Creek 9425 12.9 10.7 121 15.9 10.8 147 Kelley R.S. 8180 9.0 6.7 134 14.7 9.1 162 Spirit Lk 10235 7.3 -M * 9.0 -M * Steel Creek Park 10200 8.4 6.5 129 10.3 8.0 129 ----- ----- Basin Index (%) 130 137 UPPER BEAR RIVER Bear River RS 8777 6.0 -M * 8.1 -M * Bug Lake 7950 10.8 6.9 157 14.2 9.8 145 Burts Miller Ranch 8000 3.2 -M * 4.0 -M * Chalk Creek #1 8993 13.1 10.5 125 15.4 12.6 122 Hayden Fork 9212 10.2 6.4 159 14.5 10.4 139 Kelley R.S. 8180 9.0 6.7 134 14.7 9.1 162 Lily Lake 9156 7.2 5.5 131 9.6 8.7 110 Monte Cristo 8960 12.5 11.4 110 15.4 12.9 119 Salt River Summit 7760 6.1 5.3 115 11.9 8.2 145 ----- ----- Basin Index (%) 131 133 ----------------------------------------------------------------------------- -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.