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 MONDAY: JANUARY 5 , 2015 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 9.1 7.7 118 10.3 10.6 97 Black Bear 8170 16.4 18.6 88 17.5 19.1 92 Blind Bull Sum 8650 14.7 9.6 153 10.7 9.9 108 Cottonwood Creek 7670 12.3 8.8 140 14.8 11.9 124 East Rim Divide 7930 7.7 4.6 167 7.3 5.8 126 Grand Targhee 9260 21.3 18.3 116 17.5 15.5 113 Granite Creek 6770 10.9 6.8 160 11.7 10.1 116 Grassy Lake 7265 15.3 13.7 112 16.3 18.2 90 Gros Ventre Summit 8750 8.3 6.4 130 6.7 6.4 105 Gunsight Pass 9820 7.3 6.5 112 7.5 6.8 110 Lewis Lake Divide 7850 14.1 14.0 101 16.5 17.9 92 Phillips Bench 8200 13.2 11.7 113 14.7 13.8 107 Salt River Summit 7760 6.4 5.2 123 8.2 8.0 102 Snake River Station 6920 10.0 7.2 139 11.9 11.7 102 Spring Creek Divide 9000 14.7 10.7 137 14.7 11.6 127 Thumb Divide 7980 6.7 6.6 102 7.9 9.4 84 Togwotee Pass 9580 12.8 11.6 110 13.8 12.1 114 Two Ocean Plateau 9240 14.9 13.1 114 13.2 13.4 99 Willow Creek 8380 13.5 11.6 116 16.8 16.5 102 Younts Peak 8350 -M 7.2 * -M 8.2 * ----- ----- Basin Index (%) 119 104 MADISON-GALLATIN Black Bear 8170 16.4 18.6 88 17.5 19.1 92 Canyon 7870 6.8 5.9 115 7.7 8.3 93 Madison Plateau 7750 10.3 10.6 97 10.9 13.3 82 West Yellowstone 6700 5.0 5.0 100 6.3 7.5 84 Whiskey Creek 6800 6.5 7.2 90 8.3 10.4 80 ----- ----- Basin Index (%) 95 87 YELLOWSTONE Beartooth Lake 9360 12.1 10.4 116 11.7 9.7 121 Burnt Mtn 5880 4.2 1.9 221 7.2 6.9 104 Canyon 7870 6.8 5.9 115 7.7 8.3 93 Cole Creek 7850 6.4 6.4 100 5.0 6.6 76 Evening Star 9200 14.5 12.3 118 15.7 13.9 113 Fisher Creek 9100 17.0 16.0 106 15.9 15.9 100 Northeast Entrance 7350 6.4 4.6 139 8.8 6.5 135 Parker Peak 9400 12.9 10.5 123 12.3 9.0 137 Sylvan Lake 8420 9.0 9.7 93 11.3 11.7 97 Thumb Divide 7980 6.7 6.6 102 7.9 9.4 84 Two Ocean Plateau 9240 14.9 13.1 114 13.2 13.4 99 White Mill 8700 14.0 10.6 132 13.3 11.9 112 Wolverine 7650 8.4 5.2 162 8.3 6.5 128 ----- ----- Basin Index (%) 118 107 WIND RIVER Burroughs Creek 8750 8.0 6.5 123 9.4 8.1 116 Castle Creek 8400 5.1 -M * 5.2 -M * Cold Springs 9630 4.3 3.3 130 5.2 5.1 102 Deer Park 9700 6.1 6.7 91 8.1 9.6 84 Hobbs Park 10100 5.6 6.9 81 6.4 6.4 100 Kirwin 9550 6.5 4.5 144 7.7 5.9 131 Little Warm 9370 5.8 4.8 121 6.9 6.4 108 Owl Creek 8975 2.7 2.7 100 4.6 3.0 153 South Pass 9040 6.0 6.9 87 6.6 8.7 76 St. Lawrence Alt 8620 2.4 3.2 75 3.4 4.4 77 Togwotee Pass 9580 12.8 11.6 110 13.8 12.1 114 Townsend Creek 8700 3.4 4.2 81 5.6 6.0 93 ----- ----- Basin Index (%) 104 103 BIGHORN BASIN Bald Mtn. 9380 8.2 9.0 91 6.8 8.3 82 Bear Trap Meadow 8200 3.8 2.6 146 4.2 4.3 98 Bone Springs Div 9350 6.8 7.6 89 6.1 7.5 81 Grave Springs 8550 3.7 3.7 100 3.7 5.3 70 Kirwin 9550 6.5 4.5 144 7.7 5.9 131 Marquette 8760 3.5 -M * 4.8 -M * Middle Powder 7760 5.6 5.2 108 4.6 6.2 74 Owl Creek 8975 2.7 2.7 100 4.6 3.0 153 Powder River Pass 9480 5.6 5.1 110 6.6 6.2 106 Shell Creek 9580 6.0 7.4 81 6.1 6.8 90 Timber Creek 7950 3.2 2.2 145 4.7 4.0 118 ----- ----- Basin Index (%) 104 96 SHOSHONE RIVER Blackwater 9780 11.9 11.0 108 11.6 10.4 112 Evening Star 9200 14.5 12.3 118 15.7 13.9 113 Marquette 8760 3.5 -M * 4.8 -M * Sylvan Road 7120 7.1 5.9 120 9.8 9.5 103 Younts Peak 8350 -M 7.2 * -M 8.2 * ----- ----- Basin Index (%) 115 110 POWDER RIVER Bear Trap Meadow 8200 3.8 2.6 146 4.2 4.3 98 Cloud Peak Reservoir 9860 6.7 6.5 103 7.0 6.5 108 Grave Springs 8550 3.7 3.7 100 3.7 5.3 70 Hansen Sawmill 8360 4.4 3.2 138 5.1 4.2 121 Middle Powder 7760 5.6 5.2 108 4.6 6.2 74 Powder River Pass 9480 5.6 5.1 110 6.6 6.2 106 Soldier Park 8720 3.6 -M * 4.7 -M * ----- ----- Basin Index (%) 113 95 TONGUE RIVER Big Goose 7990 4.3 3.8 113 5.1 5.5 93 Bone Springs Div 9350 6.8 7.6 89 6.1 7.5 81 Burgess Junction 7880 5.2 4.9 106 5.5 6.1 90 Dome Lake 8880 4.5 5.6 80 6.4 7.0 91 Little Goose 8870 4.5 -M * 5.8 -M * Sucker Creek 8880 5.8 5.5 105 6.5 7.0 93 Tie Creek 6870 3.2 2.2 145 5.4 5.8 93 ----- ----- Basin Index (%) 101 90 BELLE FOURCHE Cole Canyon 5910 2.0 2.3 87 4.6 4.7 98 ----- ----- Basin Index (%) 87 98 CHEYENNE RIVER BASIN Blind Park 6890 3.1 3.5 89 4.7 6.2 76 North Rapid Creek 6130 3.8 3.3 115 5.8 5.2 112 ----- ----- Basin Index (%) 101 92 UPPER N. PLATTE Arapaho Ridge 10960 9.0 10.0 90 10.5 11.4 92 Blackhall Mtn 9820 11.1 -M * 14.1 -M * Columbine 9160 10.6 9.4 113 12.6 12.2 103 Divide Peak 8880 5.1 9.1 56 7.7 10.8 71 Joe Wright 10120 9.2 9.8 94 14.7 12.6 117 Laprele Creek 8375 3.5 4.1 85 4.0 6.1 66 Med Bow 10500 16.0 -M * 15.6 -M * North French Creek 10130 12.5 12.3 102 12.7 12.7 100 Never Summer 10280 8.7 9.3 94 9.5 -M * Old Battle 10000 12.2 13.5 90 12.7 17.2 74 Rawah 9020 6.2 4.9 127 9.2 7.7 119 Sage Creek Basin 7850 4.9 6.3 78 4.6 7.9 58 Sand Lake 10050 12.0 12.6 95 10.9 11.7 93 South Brush Creek 8440 4.4 5.2 85 5.4 7.5 72 Tower 10500 17.5 19.1 92 19.2 19.3 99 Webber Springs 9250 8.6 10.3 83 10.2 13.1 78 Willow Creek Pass 9540 5.1 5.7 89 7.1 6.7 106 Zirkel 9340 -M 11.0 * -M 14.4 * ----- ----- Basin Index (%) 91 90 SWEETWATER Deer Park 9700 6.1 6.7 91 8.1 9.6 84 Larsen Creek 9000 4.1 5.2 79 6.3 -M * South Pass 9040 6.0 6.9 87 6.6 8.7 76 ----- ----- Basin Index (%) 86 80 LOWER N. PLATTE Casper Mtn. 7900 -M 6.2 * -M 7.6 * Laprele Creek 8375 3.5 4.1 85 4.0 6.1 66 Reno Hill 8400 4.9 6.0 82 6.3 7.3 86 Windy Peak 7900 3.4 3.1 110 3.7 5.3 70 ----- ----- Basin Index (%) 89 75 LARAMIE RIVER Brooklyn Lake 10240 9.8 8.5 115 10.7 9.7 110 Cinnabar Park 9574 8.5 9.7 88 11.8 12.2 97 Crow Creek 8330 4.1 4.7 87 5.1 5.7 89 Deadman Hill 10220 8.0 7.4 108 8.6 8.1 106 Rawah 9020 6.2 4.9 127 9.2 7.7 119 Roach 9700 5.6 7.2 78 8.2 9.3 88 ----- ----- Basin Index (%) 100 102 S. PLATTE Black Mountain 8920 5.0 -M * 6.9 -M * Crow Creek 8330 4.1 4.7 87 5.1 5.7 89 Deadman Hill 10220 8.0 7.4 108 8.6 8.1 106 ----- ----- Basin Index (%) 100 99 LITTLE SNAKE RIVER Battle Mountain 7440 4.3 4.6 93 6.4 7.4 86 Divide Peak 8880 5.1 9.1 56 7.7 10.8 71 Elk River 8700 7.2 7.5 96 8.5 9.6 89 Little Snake River 8915 11.2 9.7 115 15.8 15.5 102 Old Battle 10000 12.2 13.5 90 12.7 17.2 74 Sage Creek Basin 7850 4.9 6.3 78 4.6 7.9 58 Sandstone RS 8150 5.1 4.9 104 6.3 9.1 69 Whiskey Park 8950 12.2 10.0 122 13.2 12.8 103 ----- ----- Basin Index (%) 95 83 UPPER GREEN RIVER Big Sandy Opening 9080 6.5 6.4 102 6.3 6.6 95 Blind Bull Sum 8650 14.7 9.6 153 10.7 9.9 108 East Rim Divide 7930 7.7 4.6 167 7.3 5.8 126 Elkhart Park G.S. 9400 6.5 5.8 112 7.6 6.7 113 Gros Ventre Summit 8750 8.3 6.4 130 6.7 6.4 105 Gunsight Pass 9820 7.3 6.5 112 7.5 6.8 110 Kendall R.S. 7740 7.6 5.1 149 7.7 6.9 112 Loomis Park 8240 9.8 6.8 144 10.4 8.6 121 New Fork Lake 8340 7.0 4.8 146 6.8 5.4 126 Pocket Creek 9360 5.8 -M * 4.5 -M * Snider Basin 8060 8.4 5.6 150 9.6 7.0 137 Spring Creek Divide 9000 14.7 10.7 137 14.7 11.6 127 Triple Peak 8500 14.9 8.8 169 16.3 11.8 138 ----- ----- Basin Index (%) 140 119 LOWER GREEN RIVER Blacks Fork Jct 8870 3.2 -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 6.2 4.9 127 5.7 5.5 104 Hewinta 9519 2.8 4.0 70 5.7 6.7 85 Hickerson Park 9145 3.7 3.0 123 4.4 5.1 86 Hole-in-Rock 9150 2.9 3.1 94 4.0 4.8 83 Indian Creek 9425 10.9 10.3 106 11.5 10.5 110 Kelley R.S. 8180 7.7 6.5 118 8.6 8.9 97 Spirit Lk 10235 4.4 -M * 6.2 -M * Steel Creek Park 10200 5.5 6.4 86 6.6 7.8 85 ----- ----- Basin Index (%) 104 94 UPPER BEAR RIVER Bear River RS 8777 3.2 -M * 4.2 -M * Bug Lake 7950 7.8 6.7 116 7.2 9.5 76 Burts Miller Ranch 8000 2.1 -M * 1.9 -M * Chalk Creek #1 8993 7.9 10.2 77 8.2 12.2 67 Hayden Fork 9212 5.1 6.3 81 8.3 10.1 82 Kelley R.S. 8180 7.7 6.5 118 8.6 8.9 97 Lily Lake 9156 4.7 5.4 87 5.3 8.4 63 Monte Cristo 8960 11.1 10.8 103 10.6 12.5 85 Salt River Summit 7760 6.4 5.2 123 8.2 8.0 102 ----- ----- Basin Index (%) 99 81 ----------------------------------------------------------------------------- -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.