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 SUNDAY: JANUARY 8 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 11.0 8.1 136 18.8 11.0 171 Black Bear 8170 16.4 19.2 85 25.9 19.7 131 Blind Bull Sum 8650 14.7 10.4 141 15.1 10.2 148 Cottonwood Creek 7670 11.1 9.1 122 18.0 12.4 145 East Rim Divide 7930 7.7 4.9 157 10.3 6.1 169 Grand Targhee 9260 24.6 19.6 126 23.1 16.8 138 Granite Creek 6770 10.5 7.2 146 16.8 10.5 160 Grassy Lake 7265 16.1 14.5 111 27.6 18.9 146 Gros Ventre Summit 8750 6.9 6.7 103 11.1 6.6 168 Gunsight Pass 9820 7.7 6.8 113 12.0 7.1 169 Lewis Lake Divide 7850 13.0 14.7 88 24.6 18.6 132 Phillips Bench 8200 12.3 12.4 99 21.9 14.3 153 Salt River Summit 7760 6.4 5.4 119 12.3 8.3 148 Snake River Station 6920 10.4 7.6 137 19.1 12.2 157 Spring Creek Divide 9000 13.9 10.9 128 19.2 12.1 159 Thumb Divide 7980 6.8 7.0 97 12.9 9.7 133 Togwotee Pass 9580 14.7 12.0 122 18.3 12.7 144 Two Ocean Plateau 9240 18.3 13.9 132 19.6 13.9 141 Willow Creek 8380 12.8 12.3 104 23.8 17.2 138 Younts Peak 8350 8.7 7.4 118 13.5 8.6 157 ----- ----- Basin Index (%) 116 147 MADISON-GALLATIN Black Bear 8170 16.4 19.2 85 25.9 19.7 131 Canyon 7870 7.0 6.3 111 13.3 8.6 155 Madison Plateau 7750 9.6 11.0 87 19.4 13.8 141 West Yellowstone 6700 5.8 5.4 107 13.2 7.8 169 Whiskey Creek 6800 6.2 7.6 82 14.0 10.8 130 ----- ----- Basin Index (%) 91 141 YELLOWSTONE Beartooth Lake 9360 12.3 10.9 113 10.2 10.1 101 Burnt Mtn 5880 3.9 1.9 205 7.8 7.0 111 Canyon 7870 7.0 6.3 111 13.3 8.6 155 Cole Creek 7850 5.5 6.6 83 5.0 6.7 75 Evening Star 9200 14.6 12.7 115 20.8 14.5 143 Fisher Creek 9100 14.1 16.6 85 19.5 16.6 117 Northeast Entrance 7350 4.9 4.8 102 10.2 6.7 152 Parker Peak 9400 12.9 10.9 118 15.9 9.3 171 Sylvan Lake 8420 10.1 10.3 98 20.5 12.1 169 Thumb Divide 7980 6.8 7.0 97 12.9 9.7 133 Two Ocean Plateau 9240 18.3 13.9 132 19.6 13.9 141 White Mill 8700 11.6 11.2 104 15.0 12.4 121 Wolverine 7650 7.6 5.4 141 11.3 6.8 166 ----- ----- Basin Index (%) 109 135 WIND RIVER Burroughs Creek 8750 8.9 -M * 11.5 -M * Castle Creek 8400 5.4 -M * 7.6 -M * Cold Springs 9630 4.8 3.5 137 7.4 5.3 140 Deer Park 9700 10.8 6.9 157 14.7 9.9 148 Hobbs Park 10100 9.0 7.0 129 9.7 6.6 147 Kirwin 9550 7.3 4.7 155 10.3 6.1 169 Little Warm 9370 5.1 5.0 102 10.0 6.6 152 Owl Creek 8975 3.1 2.8 111 4.5 3.0 150 South Pass 9040 10.1 7.0 144 10.2 9.0 113 St. Lawrence Alt 8620 2.5 3.3 76 6.3 4.5 140 Togwotee Pass 9580 14.7 12.0 122 18.3 12.7 144 Townsend Creek 8700 4.6 4.2 110 7.6 6.1 125 ----- ----- Basin Index (%) 128 142 BIGHORN BASIN Bald Mtn. 9380 10.7 9.3 115 9.5 8.6 110 Bear Trap Meadow 8200 2.7 2.7 100 4.3 4.4 98 Bone Springs Div 9350 7.9 7.8 101 8.5 7.8 109 Grave Springs 8550 3.1 3.8 82 4.5 5.4 83 Kirwin 9550 7.3 4.7 155 10.3 6.1 169 Marquette 8760 4.2 -M * 7.2 -M * Middle Powder 7760 4.0 5.3 75 4.9 6.3 78 Owl Creek 8975 3.1 2.8 111 4.5 3.0 150 Powder River Pass 9480 2.9 5.3 55 5.9 6.5 91 Shell Creek 9580 8.8 7.4 119 7.3 7.1 103 Timber Creek 7950 3.1 2.2 141 4.4 4.0 110 ----- ----- Basin Index (%) 104 108 SHOSHONE RIVER Blackwater 9780 15.9 11.5 138 19.7 10.8 182 Evening Star 9200 14.6 12.7 115 20.8 14.5 143 Marquette 8760 4.2 -M * 7.2 -M * Sylvan Road 7120 7.2 6.0 120 17.3 9.8 177 Younts Peak 8350 8.7 7.4 118 13.5 8.6 157 ----- ----- Basin Index (%) 123 163 POWDER RIVER Bear Trap Meadow 8200 2.7 2.7 100 4.3 4.4 98 Cloud Peak Reservoir 9860 5.8 6.6 88 7.9 6.6 120 Grave Springs 8550 3.1 3.8 82 4.5 5.4 83 Hansen Sawmill 8360 3.8 3.3 115 5.8 4.3 135 Middle Powder 7760 4.0 5.3 75 4.9 6.3 78 Powder River Pass 9480 2.9 5.3 55 5.9 6.5 91 Soldier Park 8720 6.4 -M * 6.1 -M * ----- ----- Basin Index (%) 83 99 TONGUE RIVER Big Goose 7990 4.6 3.9 118 5.7 5.6 102 Bone Springs Div 9350 7.9 7.8 101 8.5 7.8 109 Burgess Junction 7880 4.4 5.0 88 6.1 6.3 97 Dome Lake 8880 5.3 5.7 93 7.1 7.1 100 Little Goose 8870 5.0 -M * 7.1 -M * Sucker Creek 8880 5.3 5.7 93 6.1 7.2 85 Tie Creek 6870 3.3 2.3 143 6.3 6.0 105 ----- ----- Basin Index (%) 101 100 BELLE FOURCHE Cole Canyon 5910 2.9 2.4 121 4.0 4.9 82 ----- ----- Basin Index (%) 121 82 CHEYENNE RIVER BASIN Blind Park 6890 3.4 3.7 92 4.5 6.5 69 North Rapid Creek 6130 3.7 3.3 112 4.0 5.4 74 ----- ----- Basin Index (%) 101 71 UPPER N. PLATTE Arapaho Ridge 10960 13.8 10.4 133 15.1 11.9 127 Blackhall Mtn 9820 15.9 -M * 17.9 -M * Columbine 9160 13.3 10.2 130 15.5 12.7 122 Divide Peak 8880 8.7 9.5 92 11.4 11.2 102 Joe Wright 10120 9.5 10.2 93 15.2 13.2 115 Laprele Creek 8375 5.1 4.4 116 5.2 6.3 83 Med Bow 10500 19.6 -M * 19.4 -M * North French Creek 10130 12.3 12.8 96 14.2 13.3 107 Never Summer 10280 -M 9.8 * -M -M * Old Battle 10000 15.4 14.3 108 17.0 18.0 94 Rawah 9020 7.0 5.0 140 9.7 8.0 121 Sage Creek Basin 7850 7.1 6.5 109 7.7 8.2 94 Sand Lake 10050 14.0 13.1 107 13.8 12.2 113 South Brush Creek 8440 5.3 5.4 98 6.7 7.8 86 Tower 10500 18.8 19.7 95 22.1 20.2 109 Webber Springs 9250 12.2 10.9 112 15.9 13.6 117 Willow Creek Pass 9540 8.7 5.9 147 9.8 7.0 140 Zirkel 9340 17.4 12.2 143 20.8 15.4 135 ----- ----- Basin Index (%) 112 112 SWEETWATER Deer Park 9700 10.8 6.9 157 14.7 9.9 148 Larsen Creek 9000 8.4 5.4 156 12.3 -M * South Pass 9040 10.1 7.0 144 10.2 9.0 113 ----- ----- Basin Index (%) 152 132 LOWER N. PLATTE Casper Mtn. 7900 5.2 6.4 81 5.8 7.8 74 Laprele Creek 8375 5.1 4.4 116 5.2 6.3 83 Reno Hill 8400 -M 6.3 * -M 7.6 * Windy Peak 7900 3.9 3.2 122 5.0 5.4 93 ----- ----- Basin Index (%) 101 82 LARAMIE RIVER Brooklyn Lake 10240 11.2 9.1 123 10.6 10.1 105 Cinnabar Park 9574 9.7 10.4 93 12.5 13.0 96 Crow Creek 8330 3.8 4.8 79 5.5 5.8 95 Deadman Hill 10220 10.2 7.6 134 10.3 8.4 123 Rawah 9020 7.0 5.0 140 9.7 8.0 121 Roach 9700 7.8 7.6 103 9.5 9.7 98 ----- ----- Basin Index (%) 112 106 S. PLATTE Black Mountain 8920 5.6 -M * 6.9 -M * Crow Creek 8330 3.8 4.8 79 5.5 5.8 95 Deadman Hill 10220 10.2 7.6 134 10.3 8.4 123 ----- ----- Basin Index (%) 113 111 LITTLE SNAKE RIVER Battle Mountain 7440 6.5 4.8 135 9.3 7.8 119 Divide Peak 8880 8.7 9.5 92 11.4 11.2 102 Elk River 8700 10.9 8.1 135 11.8 10.0 118 Little Snake River 8915 14.6 10.5 139 20.0 16.3 123 Old Battle 10000 15.4 14.3 108 17.0 18.0 94 Sage Creek Basin 7850 7.1 6.5 109 7.7 8.2 94 Sandstone RS 8150 7.3 5.4 135 7.7 9.5 81 Whiskey Park 8950 13.3 10.6 125 16.6 13.5 123 ----- ----- Basin Index (%) 120 107 UPPER GREEN RIVER Big Sandy Opening 9080 9.6 6.7 143 12.3 6.9 178 Blind Bull Sum 8650 14.7 10.4 141 15.1 10.2 148 East Rim Divide 7930 7.7 4.9 157 10.3 6.1 169 Elkhart Park G.S. 9400 6.6 5.9 112 12.0 7.0 171 Gros Ventre Summit 8750 6.9 6.7 103 11.1 6.6 168 Gunsight Pass 9820 7.7 6.8 113 12.0 7.1 169 Kendall R.S. 7740 8.3 5.4 154 12.7 7.2 176 Loomis Park 8240 10.4 7.0 149 15.7 8.9 176 New Fork Lake 8340 6.9 5.1 135 7.7 5.7 135 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 7.5 5.9 127 12.6 7.3 173 Spring Creek Divide 9000 13.9 10.9 128 19.2 12.1 159 Triple Peak 8500 15.4 9.4 164 20.3 12.3 165 ----- ----- Basin Index (%) 136 165 LOWER GREEN RIVER Blacks Fork Jct 8870 6.0 -M * 8.0 -M * Buck Pasture 9700 8.9 -M * 12.0 -M * EF Blacks Fork GS 9360 8.5 -M * 7.0 -M * Hams Fork 7840 6.5 5.1 127 10.3 5.8 178 Hewinta 9519 6.3 4.2 150 8.6 7.0 123 Hickerson Park 9145 5.2 3.1 168 5.6 5.3 106 Hole-in-Rock 9150 4.0 3.2 125 6.0 5.0 120 Indian Creek 9425 13.3 10.8 123 16.3 11.0 148 Kelley R.S. 8180 9.4 6.8 138 15.2 9.2 165 Spirit Lk 10235 7.6 -M * 9.3 -M * Steel Creek Park 10200 8.7 6.6 132 10.4 8.1 128 ----- ----- Basin Index (%) 134 141 UPPER BEAR RIVER Bear River RS 8777 6.1 -M * 8.3 -M * Bug Lake 7950 11.2 7.0 160 14.6 9.9 147 Burts Miller Ranch 8000 3.3 -M * 4.3 -M * Chalk Creek #1 8993 13.6 10.7 127 25.1 12.7 198 Hayden Fork 9212 10.3 6.5 158 14.7 10.5 140 Kelley R.S. 8180 9.4 6.8 138 15.2 9.2 165 Lily Lake 9156 7.3 5.6 130 9.6 8.7 110 Monte Cristo 8960 12.8 11.7 109 15.7 13.0 121 Salt River Summit 7760 6.4 5.4 119 12.3 8.3 148 ----- ----- Basin Index (%) 132 148 ----------------------------------------------------------------------------- -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.