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 FRIDAY: JANUARY 9 , 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 8.3 122 11.3 11.2 101 Black Bear 8170 18.0 19.4 93 18.9 20.0 94 Blind Bull Sum 8650 15.8 10.8 146 11.4 10.3 111 Cottonwood Creek 7670 13.8 9.2 150 16.3 12.6 129 East Rim Divide 7930 8.9 5.0 178 7.8 6.2 126 Grand Targhee 9260 23.6 20.0 118 19.1 17.1 112 Granite Creek 6770 11.9 7.3 163 12.7 10.7 119 Grassy Lake 7265 18.2 14.8 123 19.0 19.2 99 Gros Ventre Summit 8750 8.5 6.9 123 6.8 6.7 101 Gunsight Pass 9820 7.6 6.9 110 7.8 7.2 108 Lewis Lake Divide 7850 15.2 15.0 101 18.2 18.8 97 Phillips Bench 8200 14.3 12.7 113 15.7 14.6 108 Salt River Summit 7760 7.2 5.5 131 8.8 8.5 104 Snake River Station 6920 11.2 7.8 144 13.4 12.4 108 Spring Creek Divide 9000 16.2 11.0 147 16.1 12.3 131 Thumb Divide 7980 7.2 7.1 101 8.3 9.8 85 Togwotee Pass 9580 13.9 12.2 114 15.0 12.9 116 Two Ocean Plateau 9240 16.2 14.2 114 14.6 14.1 104 Willow Creek 8380 14.9 12.5 119 18.1 17.4 104 Younts Peak 8350 -M 7.5 * -M 8.6 * ----- ----- Basin Index (%) 122 107 MADISON-GALLATIN Black Bear 8170 18.0 19.4 93 18.9 20.0 94 Canyon 7870 7.8 6.4 122 8.7 8.7 100 Madison Plateau 7750 11.3 11.1 102 11.8 14.1 84 West Yellowstone 6700 5.5 5.5 100 6.9 7.9 87 Whiskey Creek 6800 7.4 7.8 95 9.2 10.9 84 ----- ----- Basin Index (%) 100 90 YELLOWSTONE Beartooth Lake 9360 13.7 11.1 123 13.3 10.3 129 Burnt Mtn 5880 4.3 1.9 226 7.2 7.1 101 Canyon 7870 7.8 6.4 122 8.7 8.7 100 Cole Creek 7850 6.5 6.6 98 4.7 6.7 70 Evening Star 9200 16.4 12.8 128 18.0 14.7 122 Fisher Creek 9100 19.3 16.8 115 17.9 16.8 107 Northeast Entrance 7350 7.2 4.9 147 9.6 6.8 141 Parker Peak 9400 14.1 11.1 127 13.6 9.4 145 Sylvan Lake 8420 10.3 10.4 99 12.5 12.2 102 Thumb Divide 7980 7.2 7.1 101 8.3 9.8 85 Two Ocean Plateau 9240 16.2 14.2 114 14.6 14.1 104 White Mill 8700 15.6 11.4 137 14.8 12.6 117 Wolverine 7650 9.4 5.5 171 8.7 6.8 128 ----- ----- Basin Index (%) 123 112 WIND RIVER Burroughs Creek 8750 8.5 6.8 125 10.0 8.6 116 Castle Creek 8400 5.3 -M * 5.3 -M * Cold Springs 9630 -M 3.6 * 5.2 5.3 98 Deer Park 9700 5.7 7.0 81 7.9 10.0 79 Hobbs Park 10100 5.5 7.1 77 5.9 6.7 88 Kirwin 9550 6.6 4.7 140 8.0 6.1 131 Little Warm 9370 5.9 5.0 118 7.0 6.7 104 Owl Creek 8975 2.7 2.8 96 4.5 3.1 145 South Pass 9040 5.9 7.1 83 6.6 9.1 73 St. Lawrence Alt 8620 2.1 3.3 64 3.3 4.6 72 Togwotee Pass 9580 13.9 12.2 114 15.0 12.9 116 Townsend Creek 8700 3.2 4.2 76 5.5 6.2 89 ----- ----- Basin Index (%) 100 99 BIGHORN BASIN Bald Mtn. 9380 9.6 9.4 102 7.4 8.7 85 Bear Trap Meadow 8200 3.8 2.7 141 3.9 4.4 89 Bone Springs Div 9350 8.1 7.9 103 6.8 7.8 87 Grave Springs 8550 3.7 3.9 95 3.5 5.5 64 Kirwin 9550 6.6 4.7 140 8.0 6.1 131 Marquette 8760 3.0 -M * 4.6 -M * Middle Powder 7760 5.5 5.4 102 -M 6.4 * Owl Creek 8975 2.7 2.8 96 4.5 3.1 145 Powder River Pass 9480 6.5 5.4 120 7.4 6.6 112 Shell Creek 9580 7.4 7.5 99 7.4 7.2 103 Timber Creek 7950 3.1 2.3 135 4.7 4.1 115 ----- ----- Basin Index (%) 110 100 SHOSHONE RIVER Blackwater 9780 12.7 11.7 109 12.6 10.9 116 Evening Star 9200 16.4 12.8 128 18.0 14.7 122 Marquette 8760 3.0 -M * 4.6 -M * Sylvan Road 7120 8.4 6.0 140 11.2 9.9 113 Younts Peak 8350 -M 7.5 * -M 8.6 * ----- ----- Basin Index (%) 123 118 POWDER RIVER Bear Trap Meadow 8200 3.8 2.7 141 3.9 4.4 89 Cloud Peak Reservoir 9860 7.1 6.7 106 7.0 6.7 104 Grave Springs 8550 3.7 3.9 95 3.5 5.5 64 Hansen Sawmill 8360 4.4 3.3 133 5.1 4.3 119 Middle Powder 7760 5.5 5.4 102 -M 6.4 * Powder River Pass 9480 6.5 5.4 120 7.4 6.6 112 Soldier Park 8720 3.5 -M * 4.6 -M * ----- ----- Basin Index (%) 113 98 TONGUE RIVER Big Goose 7990 4.1 4.0 102 4.6 5.6 82 Bone Springs Div 9350 8.1 7.9 103 6.8 7.8 87 Burgess Junction 7880 5.4 5.1 106 5.2 6.3 83 Dome Lake 8880 5.7 5.7 100 5.8 7.2 81 Little Goose 8870 4.4 -M * 5.6 -M * Sucker Creek 8880 5.9 5.8 102 6.4 7.2 89 Tie Creek 6870 3.1 2.3 135 5.3 6.0 88 ----- ----- Basin Index (%) 105 85 BELLE FOURCHE Cole Canyon 5910 2.4 2.4 100 5.0 4.9 102 ----- ----- Basin Index (%) 100 102 CHEYENNE RIVER BASIN Blind Park 6890 3.6 3.8 95 5.6 6.5 86 North Rapid Creek 6130 -M 3.4 * 6.1 5.4 113 ----- ----- Basin Index (%) 95 98 UPPER N. PLATTE Arapaho Ridge 10960 9.2 10.6 87 10.7 12.1 88 Blackhall Mtn 9820 11.8 -M * 14.9 -M * Columbine 9160 11.0 10.6 104 12.7 12.9 98 Divide Peak 8880 5.0 9.6 52 7.7 11.3 68 Joe Wright 10120 9.2 10.4 88 14.8 13.3 111 Laprele Creek 8375 3.3 4.4 75 4.0 6.4 62 Med Bow 10500 16.4 -M * 16.0 -M * North French Creek 10130 12.8 12.9 99 13.2 13.4 99 Never Summer 10280 8.8 10.0 88 9.5 -M * Old Battle 10000 12.7 14.6 87 13.2 18.1 73 Rawah 9020 6.1 5.1 120 9.2 8.0 115 Sage Creek Basin 7850 4.8 6.6 73 4.6 8.2 56 Sand Lake 10050 12.2 13.3 92 11.3 12.3 92 South Brush Creek 8440 4.5 5.5 82 5.5 7.9 70 Tower 10500 17.5 20.1 87 19.7 20.4 97 Webber Springs 9250 9.1 11.0 83 10.5 13.7 77 Willow Creek Pass 9540 5.1 6.0 85 7.0 7.0 100 Zirkel 9340 -M 12.8 * -M 15.6 * ----- ----- Basin Index (%) 87 87 SWEETWATER Deer Park 9700 5.7 7.0 81 7.9 10.0 79 Larsen Creek 9000 4.3 5.5 78 6.4 -M * South Pass 9040 5.9 7.1 83 6.6 9.1 73 ----- ----- Basin Index (%) 81 76 LOWER N. PLATTE Casper Mtn. 7900 -M 6.5 * -M 7.9 * Laprele Creek 8375 3.3 4.4 75 4.0 6.4 62 Reno Hill 8400 4.8 6.3 76 6.1 7.7 79 Windy Peak 7900 3.2 3.2 100 3.6 5.5 65 ----- ----- Basin Index (%) 81 70 LARAMIE RIVER Brooklyn Lake 10240 10.7 9.4 114 11.3 10.2 111 Cinnabar Park 9574 8.6 10.7 80 12.4 13.3 93 Crow Creek 8330 4.0 4.8 83 5.1 5.9 86 Deadman Hill 10220 8.2 7.7 106 8.7 8.5 102 Rawah 9020 6.1 5.1 120 9.2 8.0 115 Roach 9700 5.7 7.7 74 8.3 9.8 85 ----- ----- Basin Index (%) 95 99 S. PLATTE Black Mountain 8920 5.0 -M * 6.9 -M * Crow Creek 8330 4.0 4.8 83 5.1 5.9 86 Deadman Hill 10220 8.2 7.7 106 8.7 8.5 102 ----- ----- Basin Index (%) 98 96 LITTLE SNAKE RIVER Battle Mountain 7440 4.4 4.9 90 6.4 7.9 81 Divide Peak 8880 5.0 9.6 52 7.7 11.3 68 Elk River 8700 7.8 8.2 95 8.8 10.2 86 Little Snake River 8915 11.8 10.8 109 16.3 16.5 99 Old Battle 10000 12.7 14.6 87 13.2 18.1 73 Sage Creek Basin 7850 4.8 6.6 73 4.6 8.2 56 Sandstone RS 8150 5.0 5.6 89 6.3 9.6 66 Whiskey Park 8950 13.5 10.9 124 14.3 13.7 104 ----- ----- Basin Index (%) 91 81 UPPER GREEN RIVER Big Sandy Opening 9080 6.7 6.8 99 6.4 7.0 91 Blind Bull Sum 8650 15.8 10.8 146 11.4 10.3 111 East Rim Divide 7930 8.9 5.0 178 7.8 6.2 126 Elkhart Park G.S. 9400 7.0 5.9 119 7.9 7.0 113 Gros Ventre Summit 8750 8.5 6.9 123 6.8 6.7 101 Gunsight Pass 9820 7.6 6.9 110 7.8 7.2 108 Kendall R.S. 7740 8.2 5.6 146 8.4 7.3 115 Loomis Park 8240 10.6 7.1 149 11.1 9.1 122 New Fork Lake 8340 7.7 5.1 151 7.6 5.8 131 Pocket Creek 9360 5.9 -M * 4.8 -M * Snider Basin 8060 9.1 6.0 152 10.3 7.4 139 Spring Creek Divide 9000 16.2 11.0 147 16.1 12.3 131 Triple Peak 8500 16.0 9.7 165 17.3 12.5 138 ----- ----- Basin Index (%) 141 120 LOWER GREEN RIVER Blacks Fork Jct 8870 3.1 -M * 5.0 -M * Buck Pasture 9700 6.0 -M * 7.7 -M * EF Blacks Fork GS 9360 3.9 -M * 5.3 -M * Hams Fork 7840 6.6 5.2 127 6.0 5.8 103 Hewinta 9519 3.3 4.3 77 5.5 7.1 77 Hickerson Park 9145 3.8 3.1 123 4.4 5.3 83 Hole-in-Rock 9150 3.0 3.2 94 4.0 5.0 80 Indian Creek 9425 11.9 11.1 107 12.1 11.1 109 Kelley R.S. 8180 8.2 6.9 119 9.1 9.4 97 Spirit Lk 10235 4.5 -M * 6.2 -M * Steel Creek Park 10200 -M 6.6 * 6.7 8.2 82 ----- ----- Basin Index (%) 109 92 UPPER BEAR RIVER Bear River RS 8777 3.3 -M * 4.2 -M * Bug Lake 7950 7.5 7.2 104 7.4 10.0 74 Burts Miller Ranch 8000 2.4 -M * 1.9 -M * Chalk Creek #1 8993 7.9 10.8 73 8.2 12.8 64 Hayden Fork 9212 5.0 6.5 77 8.2 10.6 77 Kelley R.S. 8180 8.2 6.9 119 9.1 9.4 97 Lily Lake 9156 4.5 5.7 79 5.3 8.8 60 Monte Cristo 8960 11.2 12.1 93 10.6 13.2 80 Salt River Summit 7760 7.2 5.5 131 8.8 8.5 104 ----- ----- Basin Index (%) 94 79 ----------------------------------------------------------------------------- -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.