Supercell over Laramie
WRDS/SCO may be working remotely so there could be a slight delay returning phone calls. Please email wrds@uwyo.edu if you are in need of information and we will respond as soon as possible

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 31 , 2016 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 10.4 7.1 146 18.1 9.9 183 Black Bear 8170 15.8 17.5 90 25.2 17.7 142 Blind Bull Sum 8650 13.7 9.0 152 15.1 9.2 164 Cottonwood Creek 7670 9.7 8.3 117 16.7 11.0 152 East Rim Divide 7930 7.1 4.3 165 9.6 5.4 178 Grand Targhee 9260 23.5 17.5 134 22.3 14.7 152 Granite Creek 6770 9.6 6.4 150 15.9 9.3 171 Grassy Lake 7265 15.4 12.5 123 27.2 16.8 162 Gros Ventre Summit 8750 6.4 6.1 105 10.7 6.1 175 Gunsight Pass 9820 7.1 6.0 118 11.4 6.4 178 Lewis Lake Divide 7850 12.5 13.1 95 24.2 16.6 146 Phillips Bench 8200 11.5 10.8 106 20.9 12.7 165 Salt River Summit 7760 5.4 4.8 112 11.4 7.4 154 Snake River Station 6920 9.9 6.2 160 18.7 10.9 172 Spring Creek Divide 9000 12.2 10.0 122 17.7 10.7 165 Thumb Divide 7980 6.6 6.1 108 12.5 8.7 144 Togwotee Pass 9580 13.9 11.0 126 17.6 11.4 154 Two Ocean Plateau 9240 17.9 12.4 144 19.2 12.5 154 Willow Creek 8380 11.3 10.6 107 22.3 15.4 145 Younts Peak 8350 8.1 7.0 116 12.8 7.6 168 ----- ----- Basin Index (%) 122 159 MADISON-GALLATIN Black Bear 8170 15.8 17.5 90 25.2 17.7 142 Canyon 7870 6.7 5.3 126 12.9 7.8 165 Madison Plateau 7750 9.2 10.2 90 18.9 12.2 155 West Yellowstone 6700 5.5 4.6 120 12.9 7.0 184 Whiskey Creek 6800 6.0 6.5 92 13.9 9.6 145 ----- ----- Basin Index (%) 98 154 YELLOWSTONE Beartooth Lake 9360 11.9 9.9 120 -M 9.1 * Burnt Mtn 5880 3.7 1.8 206 7.5 6.7 112 Canyon 7870 6.7 5.3 126 12.9 7.8 165 Cole Creek 7850 5.2 6.3 83 4.6 6.3 73 Evening Star 9200 14.2 11.2 127 20.2 13.1 154 Fisher Creek 9100 13.5 14.5 93 18.9 14.8 128 Northeast Entrance 7350 4.5 4.0 112 9.9 6.1 162 Parker Peak 9400 12.3 9.7 127 15.4 8.4 183 Sylvan Lake 8420 9.5 9.1 104 19.9 11.1 179 Thumb Divide 7980 6.6 6.1 108 12.5 8.7 144 Two Ocean Plateau 9240 17.9 12.4 144 19.2 12.5 154 White Mill 8700 11.3 9.8 115 14.7 11.2 131 Wolverine 7650 7.3 4.7 155 10.6 6.2 171 ----- ----- Basin Index (%) 119 147 WIND RIVER Burroughs Creek 8750 8.2 -M * 10.9 -M * Castle Creek 8400 4.8 -M * 7.0 -M * Cold Springs 9630 4.2 3.1 135 6.7 4.9 137 Deer Park 9700 9.7 6.6 147 13.7 8.7 157 Hobbs Park 10100 8.1 6.5 125 8.8 6.1 144 Kirwin 9550 6.8 4.3 158 9.9 5.6 177 Little Warm 9370 4.2 4.4 95 9.0 6.1 148 Owl Creek 8975 2.6 2.5 104 4.1 2.9 141 South Pass 9040 9.2 6.6 139 9.6 8.2 117 St. Lawrence Alt 8620 1.8 3.0 60 5.6 4.3 130 Togwotee Pass 9580 13.9 11.0 126 17.6 11.4 154 Townsend Creek 8700 4.0 4.1 98 6.9 5.8 119 ----- ----- Basin Index (%) 124 144 BIGHORN BASIN Bald Mtn. 9380 10.4 8.3 125 9.1 7.8 117 Bear Trap Meadow 8200 2.3 2.5 92 3.7 4.2 88 Bone Springs Div 9350 7.6 7.2 106 8.3 7.1 117 Grave Springs 8550 2.9 3.3 88 4.2 5.1 82 Kirwin 9550 6.8 4.3 158 9.9 5.6 177 Marquette 8760 3.5 -M * 6.7 -M * Middle Powder 7760 3.7 4.9 76 3.9 6.0 65 Owl Creek 8975 2.6 2.5 104 4.1 2.9 141 Powder River Pass 9480 2.6 4.7 55 5.3 5.9 90 Shell Creek 9580 8.5 7.2 118 7.0 6.5 108 Timber Creek 7950 2.9 2.1 138 4.3 3.9 110 ----- ----- Basin Index (%) 107 109 SHOSHONE RIVER Blackwater 9780 15.2 10.4 146 18.9 9.8 193 Evening Star 9200 14.2 11.2 127 20.2 13.1 154 Marquette 8760 3.5 -M * 6.7 -M * Sylvan Road 7120 6.8 5.3 128 16.6 8.9 187 Younts Peak 8350 8.1 7.0 116 12.8 7.6 168 ----- ----- Basin Index (%) 131 174 POWDER RIVER Bear Trap Meadow 8200 2.3 2.5 92 3.7 4.2 88 Cloud Peak Reservoir 9860 5.5 6.2 89 7.5 6.2 121 Grave Springs 8550 2.9 3.3 88 4.2 5.1 82 Hansen Sawmill 8360 3.4 3.0 113 5.2 4.0 130 Middle Powder 7760 3.7 4.9 76 3.9 6.0 65 Powder River Pass 9480 2.6 4.7 55 5.3 5.9 90 Soldier Park 8720 6.1 -M * 5.8 -M * ----- ----- Basin Index (%) 83 95 TONGUE RIVER Big Goose 7990 4.4 3.6 122 5.3 5.3 100 Bone Springs Div 9350 7.6 7.2 106 8.3 7.1 117 Burgess Junction 7880 4.2 4.7 89 5.5 5.8 95 Dome Lake 8880 5.1 5.4 94 6.6 6.7 99 Little Goose 8870 4.7 -M * 6.8 -M * Sucker Creek 8880 5.1 5.1 100 5.7 6.7 85 Tie Creek 6870 3.1 2.0 155 6.0 5.5 109 ----- ----- Basin Index (%) 105 101 BELLE FOURCHE Cole Canyon 5910 2.7 2.2 123 3.8 4.6 83 ----- ----- Basin Index (%) 123 83 CHEYENNE RIVER BASIN Blind Park 6890 3.2 3.2 100 4.8 6.0 80 North Rapid Creek 6130 3.5 3.2 109 3.7 5.0 74 ----- ----- Basin Index (%) 105 77 UPPER N. PLATTE Arapaho Ridge 10960 11.4 9.3 123 12.9 10.8 119 Blackhall Mtn 9820 12.7 -M * 14.9 -M * Columbine 9160 10.7 8.7 123 13.0 11.4 114 Divide Peak 8880 6.4 8.4 76 9.2 10.3 89 Joe Wright 10120 7.6 9.4 81 13.1 12.0 109 Laprele Creek 8375 4.4 3.9 113 4.6 5.9 78 Med Bow 10500 16.4 -M * 16.7 -M * North French Creek 10130 10.0 11.5 87 11.9 12.0 99 Never Summer 10280 -M 8.6 * -M -M * Old Battle 10000 11.8 12.4 95 13.8 16.2 85 Rawah 9020 5.4 4.3 126 8.1 7.3 111 Sage Creek Basin 7850 5.0 5.7 88 6.3 7.4 85 Sand Lake 10050 11.3 11.6 97 11.2 11.1 101 South Brush Creek 8440 4.0 4.7 85 5.6 7.1 79 Tower 10500 14.7 18.5 79 18.5 18.2 102 Webber Springs 9250 9.1 9.4 97 12.6 12.4 102 Willow Creek Pass 9540 7.4 5.4 137 8.7 6.5 134 Zirkel 9340 12.5 9.8 128 16.2 13.5 120 ----- ----- Basin Index (%) 99 102 SWEETWATER Deer Park 9700 9.7 6.6 147 13.7 8.7 157 Larsen Creek 9000 7.2 4.8 150 11.3 -M * South Pass 9040 9.2 6.6 139 9.6 8.2 117 ----- ----- Basin Index (%) 145 138 LOWER N. PLATTE Casper Mtn. 7900 5.1 5.8 88 5.5 7.4 74 Laprele Creek 8375 4.4 3.9 113 4.6 5.9 78 Reno Hill 8400 -M 5.7 * -M 7.0 * Windy Peak 7900 3.4 3.1 110 4.4 5.1 86 ----- ----- Basin Index (%) 101 79 LARAMIE RIVER Brooklyn Lake 10240 8.7 7.8 112 8.9 9.2 97 Cinnabar Park 9574 7.7 8.9 87 10.4 11.4 91 Crow Creek 8330 2.2 4.4 50 4.1 5.4 76 Deadman Hill 10220 8.2 7.2 114 8.3 7.7 108 Rawah 9020 5.4 4.3 126 8.1 7.3 111 Roach 9700 5.8 6.9 84 7.5 8.9 84 ----- ----- Basin Index (%) 96 95 S. PLATTE Black Mountain 8920 4.4 -M * 5.6 -M * Crow Creek 8330 2.2 4.4 50 4.1 5.4 76 Deadman Hill 10220 8.2 7.2 114 8.3 7.7 108 ----- ----- Basin Index (%) 90 95 LITTLE SNAKE RIVER Battle Mountain 7440 4.1 4.0 102 -M 6.9 * Divide Peak 8880 6.4 8.4 76 9.2 10.3 89 Elk River 8700 8.4 6.6 127 9.6 9.0 107 Little Snake River 8915 11.7 8.9 131 16.9 14.6 116 Old Battle 10000 11.8 12.4 95 13.8 16.2 85 Sage Creek Basin 7850 5.0 5.7 88 6.3 7.4 85 Sandstone RS 8150 5.1 4.3 119 5.7 8.4 68 Whiskey Park 8950 10.1 9.4 107 13.4 12.0 112 ----- ----- Basin Index (%) 105 96 UPPER GREEN RIVER Big Sandy Opening 9080 8.6 5.8 148 11.3 6.2 182 Blind Bull Sum 8650 13.7 9.0 152 15.1 9.2 164 East Rim Divide 7930 7.1 4.3 165 9.6 5.4 178 Elkhart Park G.S. 9400 5.9 5.7 104 11.3 6.3 179 Gros Ventre Summit 8750 6.4 6.1 105 10.7 6.1 175 Gunsight Pass 9820 7.1 6.0 118 11.4 6.4 178 Kendall R.S. 7740 7.7 4.8 160 12.0 6.5 185 Loomis Park 8240 9.6 6.5 148 14.9 8.0 186 New Fork Lake 8340 6.4 4.5 142 7.3 5.1 143 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 6.4 5.1 125 11.7 6.5 180 Spring Creek Divide 9000 12.2 10.0 122 17.7 10.7 165 Triple Peak 8500 14.1 8.2 172 19.0 10.9 174 ----- ----- Basin Index (%) 138 174 LOWER GREEN RIVER Blacks Fork Jct 8870 4.8 -M * 6.6 -M * Buck Pasture 9700 6.9 -M * 10.0 -M * EF Blacks Fork GS 9360 6.9 -M * 6.1 -M * Hams Fork 7840 5.2 4.5 116 8.8 5.1 173 Hewinta 9519 4.8 3.7 130 7.0 6.4 109 Hickerson Park 9145 4.3 2.8 154 4.7 4.9 96 Hole-in-Rock 9150 3.1 2.9 107 5.0 4.6 109 Indian Creek 9425 11.6 10.0 116 16.1 9.8 164 Kelley R.S. 8180 8.2 6.1 134 13.7 8.3 165 Spirit Lk 10235 6.5 -M * 8.6 -M * Steel Creek Park 10200 7.0 6.2 113 8.8 7.4 119 ----- ----- Basin Index (%) 122 138 UPPER BEAR RIVER Bear River RS 8777 4.6 -M * 6.7 -M * Bug Lake 7950 -M 6.2 * 11.9 8.9 134 Burts Miller Ranch 8000 2.2 -M * 3.4 -M * Chalk Creek #1 8993 10.4 9.6 108 12.9 11.4 113 Hayden Fork 9212 7.8 5.8 134 12.2 9.5 128 Kelley R.S. 8180 8.2 6.1 134 13.7 8.3 165 Lily Lake 9156 5.2 5.1 102 7.8 7.9 99 Monte Cristo 8960 10.3 10.0 103 14.0 11.6 121 Salt River Summit 7760 5.4 4.8 112 11.4 7.4 154 ----- ----- Basin Index (%) 114 129 ----------------------------------------------------------------------------- -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.