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 6 , 2015 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 10.1 7.8 129 11.3 10.8 105 Black Bear 8170 17.9 18.8 95 18.7 19.3 97 Blind Bull Sum 8650 15.7 9.8 160 11.4 10.0 114 Cottonwood Creek 7670 13.8 8.9 155 16.3 12.1 135 East Rim Divide 7930 8.9 4.7 189 7.8 5.9 132 Grand Targhee 9260 23.7 18.7 127 19.3 16.2 119 Granite Creek 6770 11.9 6.9 172 12.7 10.2 125 Grassy Lake 7265 -M 14.0 * 19.0 18.4 103 Gros Ventre Summit 8750 8.5 6.5 131 6.8 6.5 105 Gunsight Pass 9820 7.6 6.6 115 7.8 6.9 113 Lewis Lake Divide 7850 15.2 14.2 107 18.1 18.1 100 Phillips Bench 8200 14.3 11.9 120 15.7 14.0 112 Salt River Summit 7760 7.2 5.2 138 8.8 8.1 109 Snake River Station 6920 11.3 7.3 155 13.3 11.9 112 Spring Creek Divide 9000 16.3 10.7 152 16.1 11.8 136 Thumb Divide 7980 7.2 6.7 107 8.2 9.5 86 Togwotee Pass 9580 13.9 11.7 119 14.9 12.3 121 Two Ocean Plateau 9240 16.3 13.3 123 14.5 13.6 107 Willow Creek 8380 14.9 11.8 126 18.1 16.8 108 Younts Peak 8350 -M 7.3 * -M 8.4 * ----- ----- Basin Index (%) 129 111 MADISON-GALLATIN Black Bear 8170 17.9 18.8 95 18.7 19.3 97 Canyon 7870 7.7 6.0 128 8.7 8.4 104 Madison Plateau 7750 11.3 10.7 106 11.7 13.4 87 West Yellowstone 6700 5.6 5.1 110 6.9 7.6 91 Whiskey Creek 6800 7.4 7.4 100 9.1 10.5 87 ----- ----- Basin Index (%) 104 93 YELLOWSTONE Beartooth Lake 9360 13.7 10.6 129 13.2 9.8 135 Burnt Mtn 5880 4.3 1.9 226 7.2 7.0 103 Canyon 7870 7.7 6.0 128 8.7 8.4 104 Cole Creek 7850 6.2 6.5 95 5.0 6.6 76 Evening Star 9200 16.5 12.4 133 17.8 14.1 126 Fisher Creek 9100 19.1 16.2 118 17.7 16.1 110 Northeast Entrance 7350 7.3 4.6 159 9.6 6.6 145 Parker Peak 9400 14.2 10.6 134 13.6 9.1 149 Sylvan Lake 8420 10.3 9.9 104 12.6 11.9 106 Thumb Divide 7980 7.2 6.7 107 8.2 9.5 86 Two Ocean Plateau 9240 16.3 13.3 123 14.5 13.6 107 White Mill 8700 15.6 10.8 144 14.9 12.0 124 Wolverine 7650 9.6 5.3 181 9.2 6.6 139 ----- ----- Basin Index (%) 129 116 WIND RIVER Burroughs Creek 8750 8.6 6.6 130 10.3 8.2 126 Castle Creek 8400 5.3 -M * 5.5 -M * Cold Springs 9630 4.6 3.4 135 5.3 5.2 102 Deer Park 9700 5.7 6.8 84 8.2 9.8 84 Hobbs Park 10100 5.6 7.0 80 6.4 6.5 98 Kirwin 9550 6.8 4.5 151 8.3 5.9 141 Little Warm 9370 5.9 4.8 123 7.1 6.5 109 Owl Creek 8975 2.8 2.7 104 4.6 3.0 153 South Pass 9040 6.1 6.9 88 6.7 8.8 76 St. Lawrence Alt 8620 2.2 3.2 69 3.4 4.5 76 Togwotee Pass 9580 13.9 11.7 119 14.9 12.3 121 Townsend Creek 8700 3.4 4.2 81 5.7 6.0 95 ----- ----- Basin Index (%) 106 105 BIGHORN BASIN Bald Mtn. 9380 9.5 9.1 104 7.6 8.4 90 Bear Trap Meadow 8200 4.0 2.6 154 4.3 4.3 100 Bone Springs Div 9350 7.9 7.7 103 7.2 7.5 96 Grave Springs 8550 3.7 3.7 100 3.7 5.3 70 Kirwin 9550 6.8 4.5 151 8.3 5.9 141 Marquette 8760 3.3 -M * 4.8 -M * Middle Powder 7760 5.6 5.2 108 4.6 6.2 74 Owl Creek 8975 2.8 2.7 104 4.6 3.0 153 Powder River Pass 9480 6.4 5.2 123 7.3 6.3 116 Shell Creek 9580 7.4 7.4 100 7.2 6.9 104 Timber Creek 7950 3.2 2.2 145 4.7 4.0 118 ----- ----- Basin Index (%) 114 103 SHOSHONE RIVER Blackwater 9780 12.9 11.1 116 12.7 10.6 120 Evening Star 9200 16.5 12.4 133 17.8 14.1 126 Marquette 8760 3.3 -M * 4.8 -M * Sylvan Road 7120 8.2 5.9 139 11.2 9.6 117 Younts Peak 8350 -M 7.3 * -M 8.4 * ----- ----- Basin Index (%) 128 122 POWDER RIVER Bear Trap Meadow 8200 4.0 2.6 154 4.3 4.3 100 Cloud Peak Reservoir 9860 7.2 6.5 111 7.3 6.5 112 Grave Springs 8550 3.7 3.7 100 3.7 5.3 70 Hansen Sawmill 8360 4.6 3.2 144 5.3 4.2 126 Middle Powder 7760 5.6 5.2 108 4.6 6.2 74 Powder River Pass 9480 6.4 5.2 123 7.3 6.3 116 Soldier Park 8720 3.8 -M * 4.9 -M * ----- ----- Basin Index (%) 119 99 TONGUE RIVER Big Goose 7990 4.5 3.9 115 5.1 5.5 93 Bone Springs Div 9350 7.9 7.7 103 7.2 7.5 96 Burgess Junction 7880 5.4 4.9 110 5.7 6.1 93 Dome Lake 8880 5.8 5.6 104 6.2 7.0 89 Little Goose 8870 4.6 -M * 5.9 -M * Sucker Creek 8880 6.0 5.5 109 6.7 7.0 96 Tie Creek 6870 3.3 2.3 143 5.5 5.8 95 ----- ----- Basin Index (%) 110 94 BELLE FOURCHE Cole Canyon 5910 2.6 2.4 108 5.0 4.8 104 ----- ----- Basin Index (%) 108 104 CHEYENNE RIVER BASIN Blind Park 6890 3.7 3.6 103 5.4 6.3 86 North Rapid Creek 6130 4.4 3.3 133 6.2 5.2 119 ----- ----- Basin Index (%) 117 101 UPPER N. PLATTE Arapaho Ridge 10960 9.2 10.2 90 10.6 11.5 92 Blackhall Mtn 9820 11.9 -M * 14.7 -M * Columbine 9160 10.9 9.6 114 12.9 12.3 105 Divide Peak 8880 5.1 9.2 55 7.8 11.0 71 Joe Wright 10120 9.4 9.9 95 14.9 12.9 116 Laprele Creek 8375 3.6 4.2 86 4.1 6.2 66 Med Bow 10500 16.3 -M * 16.0 -M * North French Creek 10130 12.8 12.5 102 12.9 13.0 99 Never Summer 10280 8.9 9.5 94 9.5 -M * Old Battle 10000 12.7 13.8 92 13.1 17.4 75 Rawah 9020 -M 5.0 * -M 7.8 * Sage Creek Basin 7850 4.9 6.4 77 4.6 8.0 58 Sand Lake 10050 12.2 12.7 96 11.1 11.9 93 South Brush Creek 8440 4.4 5.3 83 5.5 7.6 72 Tower 10500 17.5 19.2 91 19.7 19.6 101 Webber Springs 9250 9.0 10.5 86 10.6 13.2 80 Willow Creek Pass 9540 5.2 5.8 90 7.1 6.8 104 Zirkel 9340 -M 11.3 * -M 14.6 * ----- ----- Basin Index (%) 91 89 SWEETWATER Deer Park 9700 5.7 6.8 84 8.2 9.8 84 Larsen Creek 9000 4.3 5.3 81 6.4 -M * South Pass 9040 6.1 6.9 88 6.7 8.8 76 ----- ----- Basin Index (%) 85 80 LOWER N. PLATTE Casper Mtn. 7900 -M 6.3 * -M 7.7 * Laprele Creek 8375 3.6 4.2 86 4.1 6.2 66 Reno Hill 8400 5.0 6.1 82 6.3 7.4 85 Windy Peak 7900 3.4 3.2 106 3.7 5.3 70 ----- ----- Basin Index (%) 89 75 LARAMIE RIVER Brooklyn Lake 10240 10.7 8.7 123 11.3 9.8 115 Cinnabar Park 9574 8.9 10.0 89 12.4 12.4 100 Crow Creek 8330 4.2 4.8 88 5.2 5.7 91 Deadman Hill 10220 8.2 7.4 111 8.7 8.2 106 Rawah 9020 -M 5.0 * -M 7.8 * Roach 9700 5.7 7.3 78 8.4 9.4 89 ----- ----- Basin Index (%) 99 101 S. PLATTE Black Mountain 8920 5.0 -M * 6.9 -M * Crow Creek 8330 4.2 4.8 88 5.2 5.7 91 Deadman Hill 10220 8.2 7.4 111 8.7 8.2 106 ----- ----- Basin Index (%) 102 100 LITTLE SNAKE RIVER Battle Mountain 7440 4.3 4.7 91 6.5 7.5 87 Divide Peak 8880 5.1 9.2 55 7.8 11.0 71 Elk River 8700 7.6 7.7 99 8.6 9.7 89 Little Snake River 8915 12.1 9.9 122 16.3 15.9 103 Old Battle 10000 12.7 13.8 92 13.1 17.4 75 Sage Creek Basin 7850 4.9 6.4 77 4.6 8.0 58 Sandstone RS 8150 5.1 5.1 100 6.4 9.2 70 Whiskey Park 8950 13.4 10.2 131 14.5 13.0 112 ----- ----- Basin Index (%) 97 85 UPPER GREEN RIVER Big Sandy Opening 9080 6.7 6.6 102 6.5 6.8 96 Blind Bull Sum 8650 15.7 9.8 160 11.4 10.0 114 East Rim Divide 7930 8.9 4.7 189 7.8 5.9 132 Elkhart Park G.S. 9400 7.0 5.8 121 7.9 6.8 116 Gros Ventre Summit 8750 8.5 6.5 131 6.8 6.5 105 Gunsight Pass 9820 7.6 6.6 115 7.8 6.9 113 Kendall R.S. 7740 8.2 5.2 158 8.4 7.0 120 Loomis Park 8240 10.5 6.9 152 11.0 8.7 126 New Fork Lake 8340 7.7 4.9 157 7.5 5.5 136 Pocket Creek 9360 5.8 -M * 4.8 -M * Snider Basin 8060 9.2 5.7 161 10.4 7.1 146 Spring Creek Divide 9000 16.3 10.7 152 16.1 11.8 136 Triple Peak 8500 16.0 9.0 178 17.4 12.0 145 ----- ----- Basin Index (%) 148 125 LOWER GREEN RIVER Blacks Fork Jct 8870 3.3 -M * 5.1 -M * Buck Pasture 9700 6.2 -M * 7.6 -M * EF Blacks Fork GS 9360 3.9 -M * 5.3 -M * Hams Fork 7840 6.6 5.0 132 6.0 5.6 107 Hewinta 9519 3.2 4.1 78 5.8 6.8 85 Hickerson Park 9145 3.9 3.0 130 4.6 5.2 88 Hole-in-Rock 9150 3.0 3.1 97 4.1 4.9 84 Indian Creek 9425 11.9 10.5 113 12.0 10.7 112 Kelley R.S. 8180 8.3 6.6 126 9.2 9.0 102 Spirit Lk 10235 4.4 -M * 6.3 -M * Steel Creek Park 10200 5.6 6.4 88 6.6 7.9 84 ----- ----- Basin Index (%) 110 96 UPPER BEAR RIVER Bear River RS 8777 3.3 -M * 4.3 -M * Bug Lake 7950 7.7 6.8 113 7.5 9.6 78 Burts Miller Ranch 8000 2.2 -M * 2.0 -M * Chalk Creek #1 8993 7.9 10.3 77 8.2 12.4 66 Hayden Fork 9212 5.1 6.3 81 8.3 10.2 81 Kelley R.S. 8180 8.3 6.6 126 9.2 9.0 102 Lily Lake 9156 4.7 5.5 85 5.3 8.6 62 Monte Cristo 8960 11.2 11.1 101 10.7 12.7 84 Salt River Summit 7760 7.2 5.2 138 8.8 8.1 109 ----- ----- Basin Index (%) 101 82 ----------------------------------------------------------------------------- -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.