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 13 , 2015 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 10.2 9.1 112 11.5 11.8 97 Black Bear 8170 18.1 20.2 90 19.1 20.9 91 Blind Bull Sum 8650 15.9 11.8 135 11.5 10.9 106 Cottonwood Creek 7670 14.0 9.8 143 16.7 13.4 125 East Rim Divide 7930 8.9 5.3 168 7.7 6.5 118 Grand Targhee 9260 24.6 20.9 118 19.9 17.8 112 Granite Creek 6770 12.1 8.0 151 12.7 11.4 111 Grassy Lake 7265 18.5 15.9 116 19.3 20.0 96 Gros Ventre Summit 8750 8.5 7.3 116 6.7 7.0 96 Gunsight Pass 9820 7.7 7.2 107 7.7 7.6 101 Lewis Lake Divide 7850 15.4 15.9 97 18.3 19.6 93 Phillips Bench 8200 14.3 13.9 103 15.8 15.4 103 Salt River Summit 7760 7.2 5.9 122 8.9 9.0 99 Snake River Station 6920 11.4 8.5 134 13.6 13.0 105 Spring Creek Divide 9000 16.3 11.4 143 16.1 13.1 123 Thumb Divide 7980 7.4 7.7 96 8.4 10.4 81 Togwotee Pass 9580 14.2 12.7 112 15.4 13.6 113 Two Ocean Plateau 9240 16.5 15.2 109 14.9 14.8 101 Willow Creek 8380 15.4 13.4 115 18.6 18.3 102 Younts Peak 8350 -M 8.0 * -M 9.0 * ----- ----- Basin Index (%) 117 103 MADISON-GALLATIN Black Bear 8170 18.1 20.2 90 19.1 20.9 91 Canyon 7870 7.8 6.9 113 8.7 9.0 97 Madison Plateau 7750 11.4 11.6 98 11.8 14.7 80 West Yellowstone 6700 5.6 6.0 93 6.9 8.2 84 Whiskey Creek 6800 7.4 8.1 91 9.1 11.4 80 ----- ----- Basin Index (%) 95 87 YELLOWSTONE Beartooth Lake 9360 14.0 11.9 118 13.5 10.8 125 Burnt Mtn 5880 4.5 2.0 225 7.5 7.2 104 Canyon 7870 7.8 6.9 113 8.7 9.0 97 Cole Creek 7850 6.7 6.9 97 5.1 6.9 74 Evening Star 9200 16.7 13.6 123 18.1 15.4 118 Fisher Creek 9100 19.5 17.5 111 18.0 17.6 102 Northeast Entrance 7350 7.3 5.1 143 9.8 7.1 138 Parker Peak 9400 14.8 11.3 131 14.0 9.8 143 Sylvan Lake 8420 10.7 11.0 97 12.8 12.8 100 Thumb Divide 7980 7.4 7.7 96 8.4 10.4 81 Two Ocean Plateau 9240 16.5 15.2 109 14.9 14.8 101 White Mill 8700 15.8 12.1 131 14.9 13.1 114 Wolverine 7650 9.5 5.7 167 9.0 7.1 127 ----- ----- Basin Index (%) 119 109 WIND RIVER Burroughs Creek 8750 8.7 7.1 123 10.2 9.0 113 Castle Creek 8400 5.4 -M * 5.5 -M * Cold Springs 9630 4.5 3.8 118 5.3 5.5 96 Deer Park 9700 5.8 7.1 82 8.2 10.7 77 Hobbs Park 10100 5.5 7.2 76 6.4 6.8 94 Kirwin 9550 6.8 5.1 133 8.2 6.4 128 Little Warm 9370 6.0 5.4 111 7.1 7.0 101 Owl Creek 8975 2.7 2.9 93 4.6 3.2 144 South Pass 9040 6.0 7.4 81 6.7 9.5 71 St. Lawrence Alt 8620 2.0 3.4 59 3.2 4.7 68 Togwotee Pass 9580 14.2 12.7 112 15.4 13.6 113 Townsend Creek 8700 3.2 4.3 74 5.5 6.3 87 ----- ----- Basin Index (%) 98 98 BIGHORN BASIN Bald Mtn. 9380 9.9 9.7 102 7.8 9.2 85 Bear Trap Meadow 8200 4.2 2.8 150 4.2 4.6 91 Bone Springs Div 9350 8.2 8.3 99 7.2 8.2 88 Grave Springs 8550 3.9 4.2 93 3.7 5.7 65 Kirwin 9550 6.8 5.1 133 8.2 6.4 128 Marquette 8760 3.3 -M * 5.0 -M * Middle Powder 7760 5.7 5.8 98 4.8 6.6 73 Owl Creek 8975 2.7 2.9 93 4.6 3.2 144 Powder River Pass 9480 6.8 5.7 119 7.5 6.8 110 Shell Creek 9580 7.7 7.9 97 7.6 7.5 101 Timber Creek 7950 3.1 2.4 129 4.7 4.2 112 ----- ----- Basin Index (%) 108 97 SHOSHONE RIVER Blackwater 9780 12.9 12.5 103 12.8 11.4 112 Evening Star 9200 16.7 13.6 123 18.1 15.4 118 Marquette 8760 3.3 -M * 5.0 -M * Sylvan Road 7120 8.4 6.3 133 11.3 10.4 109 Younts Peak 8350 -M 8.0 * -M 9.0 * ----- ----- Basin Index (%) 117 113 POWDER RIVER Bear Trap Meadow 8200 4.2 2.8 150 4.2 4.6 91 Cloud Peak Reservoir 9860 7.4 7.0 106 7.5 7.0 107 Grave Springs 8550 3.9 4.2 93 3.7 5.7 65 Hansen Sawmill 8360 4.6 3.4 135 5.3 4.4 120 Middle Powder 7760 5.7 5.8 98 4.8 6.6 73 Powder River Pass 9480 6.8 5.7 119 7.5 6.8 110 Soldier Park 8720 3.8 -M * 4.8 -M * ----- ----- Basin Index (%) 113 94 TONGUE RIVER Big Goose 7990 4.6 4.2 110 5.3 5.8 91 Bone Springs Div 9350 8.2 8.3 99 7.2 8.2 88 Burgess Junction 7880 5.6 5.4 104 5.6 6.5 86 Dome Lake 8880 5.8 5.9 98 6.1 7.4 82 Little Goose 8870 4.7 -M * 6.1 -M * Sucker Creek 8880 6.1 6.1 100 6.7 7.5 89 Tie Creek 6870 3.3 2.4 138 5.6 6.2 90 ----- ----- Basin Index (%) 104 88 BELLE FOURCHE Cole Canyon 5910 2.9 2.5 116 5.1 5.1 100 ----- ----- Basin Index (%) 116 100 CHEYENNE RIVER BASIN Blind Park 6890 3.8 3.9 97 5.6 6.8 82 North Rapid Creek 6130 4.6 3.6 128 6.4 5.6 114 ----- ----- Basin Index (%) 112 97 UPPER N. PLATTE Arapaho Ridge 10960 9.2 10.9 84 10.7 12.7 84 Blackhall Mtn 9820 12.0 -M * 14.9 -M * Columbine 9160 11.2 11.9 94 12.9 13.7 94 Divide Peak 8880 5.1 10.0 51 8.0 11.7 68 Joe Wright 10120 9.2 10.8 85 15.0 13.8 109 Laprele Creek 8375 3.8 4.7 81 4.3 6.6 65 Med Bow 10500 16.8 -M * 16.3 -M * North French Creek 10130 13.4 13.5 99 13.7 14.2 96 Never Summer 10280 8.8 10.4 85 9.6 -M * Old Battle 10000 13.0 15.2 86 13.6 19.0 72 Rawah 9020 6.2 5.3 117 9.3 8.4 111 Sage Creek Basin 7850 5.1 7.0 73 4.8 8.6 56 Sand Lake 10050 12.5 14.0 89 11.5 12.9 89 South Brush Creek 8440 5.1 5.9 86 6.0 8.2 73 Tower 10500 18.0 21.6 83 20.2 21.6 94 Webber Springs 9250 9.4 11.6 81 10.6 14.4 74 Willow Creek Pass 9540 5.1 6.1 84 7.0 7.3 96 Zirkel 9340 -M 15.0 * -M 16.5 * ----- ----- Basin Index (%) 85 85 SWEETWATER Deer Park 9700 5.8 7.1 82 8.2 10.7 77 Larsen Creek 9000 4.1 5.8 71 6.3 -M * South Pass 9040 6.0 7.4 81 6.7 9.5 71 ----- ----- Basin Index (%) 78 74 LOWER N. PLATTE Casper Mtn. 7900 -M 6.7 * -M 8.0 * Laprele Creek 8375 3.8 4.7 81 4.3 6.6 65 Reno Hill 8400 5.2 6.5 80 6.6 7.9 84 Windy Peak 7900 3.5 3.4 103 3.7 5.6 66 ----- ----- Basin Index (%) 86 73 LARAMIE RIVER Brooklyn Lake 10240 10.7 10.2 105 11.4 10.7 107 Cinnabar Park 9574 8.9 11.4 78 12.5 14.0 89 Crow Creek 8330 3.9 4.9 80 5.3 6.0 88 Deadman Hill 10220 8.3 8.0 104 8.8 8.9 99 Rawah 9020 6.2 5.3 117 9.3 8.4 111 Roach 9700 5.7 8.4 68 8.3 10.2 81 ----- ----- Basin Index (%) 91 96 S. PLATTE Black Mountain 8920 5.0 -M * 6.9 -M * Crow Creek 8330 3.9 4.9 80 5.3 6.0 88 Deadman Hill 10220 8.3 8.0 104 8.8 8.9 99 ----- ----- Basin Index (%) 95 95 LITTLE SNAKE RIVER Battle Mountain 7440 4.7 5.3 89 6.7 8.2 82 Divide Peak 8880 5.1 10.0 51 8.0 11.7 68 Elk River 8700 8.1 8.8 92 8.9 10.8 82 Little Snake River 8915 12.5 11.9 105 16.7 17.8 94 Old Battle 10000 13.0 15.2 86 13.6 19.0 72 Sage Creek Basin 7850 5.1 7.0 73 4.8 8.6 56 Sandstone RS 8150 5.1 6.2 82 6.4 10.1 63 Whiskey Park 8950 14.0 12.0 117 14.6 14.6 100 ----- ----- Basin Index (%) 88 79 UPPER GREEN RIVER Big Sandy Opening 9080 6.6 7.0 94 6.4 7.2 89 Blind Bull Sum 8650 15.9 11.8 135 11.5 10.9 106 East Rim Divide 7930 8.9 5.3 168 7.7 6.5 118 Elkhart Park G.S. 9400 7.0 6.2 113 7.8 7.3 107 Gros Ventre Summit 8750 8.5 7.3 116 6.7 7.0 96 Gunsight Pass 9820 7.7 7.2 107 7.7 7.6 101 Kendall R.S. 7740 8.2 6.2 132 8.2 7.8 105 Loomis Park 8240 10.5 7.4 142 11.2 9.6 117 New Fork Lake 8340 7.6 5.4 141 7.5 6.0 125 Pocket Creek 9360 5.8 -M * 4.7 -M * Snider Basin 8060 9.1 6.2 147 10.3 7.8 132 Spring Creek Divide 9000 16.3 11.4 143 16.1 13.1 123 Triple Peak 8500 16.0 10.9 147 17.3 13.4 129 ----- ----- Basin Index (%) 133 114 LOWER GREEN RIVER Blacks Fork Jct 8870 3.6 -M * 5.3 -M * Buck Pasture 9700 6.7 -M * 8.0 -M * EF Blacks Fork GS 9360 4.2 -M * 5.5 -M * Hams Fork 7840 6.5 5.5 118 6.0 6.2 97 Hewinta 9519 3.8 4.8 79 5.9 7.4 80 Hickerson Park 9145 4.0 3.2 125 4.7 5.4 87 Hole-in-Rock 9150 3.2 3.3 97 4.2 5.1 82 Indian Creek 9425 11.9 11.8 101 12.1 11.8 103 Kelley R.S. 8180 8.3 7.2 115 9.1 9.9 92 Spirit Lk 10235 4.6 -M * 6.4 -M * Steel Creek Park 10200 3.7 7.1 52 7.0 8.5 82 ----- ----- Basin Index (%) 97 90 UPPER BEAR RIVER Bear River RS 8777 3.8 -M * 4.7 -M * Bug Lake 7950 7.7 8.0 96 7.9 10.6 75 Burts Miller Ranch 8000 3.1 -M * 2.4 -M * Chalk Creek #1 8993 9.3 11.3 82 9.1 13.4 68 Hayden Fork 9212 5.5 6.8 81 8.9 11.2 79 Kelley R.S. 8180 8.3 7.2 115 9.1 9.9 92 Lily Lake 9156 5.1 6.2 82 5.8 9.2 63 Monte Cristo 8960 12.0 13.2 91 11.3 13.9 81 Salt River Summit 7760 7.2 5.9 122 8.9 9.0 99 ----- ----- 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.