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 THURSDAY: JANUARY 8 , 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 8.1 125 11.3 11.0 103 Black Bear 8170 18.0 19.2 94 19.0 19.7 96 Blind Bull Sum 8650 15.8 10.4 152 11.5 10.2 113 Cottonwood Creek 7670 13.8 9.1 152 16.3 12.4 131 East Rim Divide 7930 9.0 4.9 184 7.8 6.1 128 Grand Targhee 9260 23.7 19.6 121 19.3 16.8 115 Granite Creek 6770 11.9 7.2 165 12.7 10.5 121 Grassy Lake 7265 18.1 14.5 125 18.9 18.9 100 Gros Ventre Summit 8750 8.5 6.7 127 6.8 6.6 103 Gunsight Pass 9820 7.7 6.8 113 7.8 7.1 110 Lewis Lake Divide 7850 15.2 14.7 103 18.2 18.6 98 Phillips Bench 8200 14.3 12.4 115 15.7 14.3 110 Salt River Summit 7760 7.2 5.4 133 8.8 8.3 106 Snake River Station 6920 11.3 7.6 149 13.3 12.2 109 Spring Creek Divide 9000 16.3 10.9 150 16.1 12.1 133 Thumb Divide 7980 7.2 7.0 103 8.3 9.7 86 Togwotee Pass 9580 14.0 12.0 117 15.0 12.7 118 Two Ocean Plateau 9240 16.3 13.9 117 14.6 13.9 105 Willow Creek 8380 14.9 12.3 121 18.1 17.2 105 Younts Peak 8350 -M 7.4 * -M 8.6 * ----- ----- Basin Index (%) 125 109 MADISON-GALLATIN Black Bear 8170 18.0 19.2 94 19.0 19.7 96 Canyon 7870 7.8 6.3 124 8.7 8.6 101 Madison Plateau 7750 11.3 11.0 103 11.8 13.8 86 West Yellowstone 6700 5.5 5.4 102 6.9 7.8 88 Whiskey Creek 6800 7.5 7.6 99 9.2 10.8 85 ----- ----- Basin Index (%) 101 92 YELLOWSTONE Beartooth Lake 9360 13.9 10.9 128 13.5 10.1 134 Burnt Mtn 5880 4.3 1.9 226 7.3 7.0 104 Canyon 7870 7.8 6.3 124 8.7 8.6 101 Cole Creek 7850 6.3 6.6 95 5.0 6.7 75 Evening Star 9200 16.6 12.7 131 18.0 14.5 124 Fisher Creek 9100 19.4 16.6 117 17.8 16.6 107 Northeast Entrance 7350 7.2 4.8 150 9.7 6.7 145 Parker Peak 9400 14.3 10.9 131 13.8 9.3 148 Sylvan Lake 8420 10.3 10.3 100 12.6 12.1 104 Thumb Divide 7980 7.2 7.0 103 8.3 9.7 86 Two Ocean Plateau 9240 16.3 13.9 117 14.6 13.9 105 White Mill 8700 15.7 11.2 140 15.0 12.4 121 Wolverine 7650 9.5 5.4 176 9.2 6.8 135 ----- ----- Basin Index (%) 126 114 WIND RIVER Burroughs Creek 8750 8.6 6.7 128 10.3 8.4 123 Castle Creek 8400 5.3 -M * 5.4 -M * Cold Springs 9630 4.6 3.5 131 5.4 5.3 102 Deer Park 9700 5.8 6.9 84 8.2 9.9 83 Hobbs Park 10100 5.6 7.0 80 6.4 6.6 97 Kirwin 9550 6.9 4.7 147 8.3 6.1 136 Little Warm 9370 5.9 5.0 118 7.2 6.6 109 Owl Creek 8975 2.8 2.8 100 4.6 3.0 153 South Pass 9040 6.1 7.0 87 6.8 9.0 76 St. Lawrence Alt 8620 2.4 3.3 73 3.5 4.5 78 Togwotee Pass 9580 14.0 12.0 117 15.0 12.7 118 Townsend Creek 8700 3.5 4.2 83 5.8 6.1 95 ----- ----- Basin Index (%) 105 104 BIGHORN BASIN Bald Mtn. 9380 9.6 9.3 103 7.8 8.6 91 Bear Trap Meadow 8200 4.0 2.7 148 4.2 4.4 95 Bone Springs Div 9350 8.0 7.8 103 7.2 7.8 92 Grave Springs 8550 3.8 3.8 100 3.7 5.4 69 Kirwin 9550 6.9 4.7 147 8.3 6.1 136 Marquette 8760 3.2 -M * 5.0 -M * Middle Powder 7760 5.5 5.3 104 -M 6.3 * Owl Creek 8975 2.8 2.8 100 4.6 3.0 153 Powder River Pass 9480 6.4 5.3 121 7.5 6.5 115 Shell Creek 9580 7.5 7.4 101 7.4 7.1 104 Timber Creek 7950 3.2 2.2 145 4.7 4.0 118 ----- ----- Basin Index (%) 112 105 SHOSHONE RIVER Blackwater 9780 12.9 11.5 112 12.8 10.8 119 Evening Star 9200 16.6 12.7 131 18.0 14.5 124 Marquette 8760 3.2 -M * 5.0 -M * Sylvan Road 7120 8.3 6.0 138 11.2 9.8 114 Younts Peak 8350 -M 7.4 * -M 8.6 * ----- ----- Basin Index (%) 125 120 POWDER RIVER Bear Trap Meadow 8200 4.0 2.7 148 4.2 4.4 95 Cloud Peak Reservoir 9860 7.1 6.6 108 7.3 6.6 111 Grave Springs 8550 3.8 3.8 100 3.7 5.4 69 Hansen Sawmill 8360 4.6 3.3 139 5.4 4.3 126 Middle Powder 7760 5.5 5.3 104 -M 6.3 * Powder River Pass 9480 6.4 5.3 121 7.5 6.5 115 Soldier Park 8720 3.9 -M * 4.9 -M * ----- ----- Basin Index (%) 116 103 TONGUE RIVER Big Goose 7990 4.5 3.9 115 5.2 5.6 93 Bone Springs Div 9350 8.0 7.8 103 7.2 7.8 92 Burgess Junction 7880 5.4 5.0 108 5.7 6.3 90 Dome Lake 8880 5.9 5.7 104 6.1 7.1 86 Little Goose 8870 4.6 -M * 6.0 -M * Sucker Creek 8880 6.0 5.7 105 6.8 7.2 94 Tie Creek 6870 3.3 2.3 143 5.6 6.0 93 ----- ----- Basin Index (%) 109 92 BELLE FOURCHE Cole Canyon 5910 3.0 2.4 125 5.1 4.9 104 ----- ----- Basin Index (%) 125 104 CHEYENNE RIVER BASIN Blind Park 6890 3.8 3.7 103 5.6 6.5 86 North Rapid Creek 6130 4.6 3.3 139 6.4 5.4 119 ----- ----- Basin Index (%) 120 101 UPPER N. PLATTE Arapaho Ridge 10960 9.2 10.4 88 10.6 11.9 89 Blackhall Mtn 9820 11.9 -M * 14.7 -M * Columbine 9160 11.1 10.2 109 12.8 12.7 101 Divide Peak 8880 5.2 9.5 55 7.8 11.2 70 Joe Wright 10120 9.3 10.2 91 14.8 13.2 112 Laprele Creek 8375 3.6 4.4 82 4.0 6.3 63 Med Bow 10500 16.5 -M * 16.0 -M * North French Creek 10130 12.8 12.8 100 13.0 13.3 98 Never Summer 10280 8.8 9.8 90 9.5 -M * Old Battle 10000 12.6 14.3 88 13.3 18.0 74 Rawah 9020 6.1 5.0 122 9.2 8.0 115 Sage Creek Basin 7850 5.0 6.5 77 4.6 8.2 56 Sand Lake 10050 12.2 13.1 93 11.3 12.2 93 South Brush Creek 8440 4.5 5.4 83 5.5 7.8 71 Tower 10500 17.7 19.7 90 19.8 20.2 98 Webber Springs 9250 9.1 10.9 83 10.6 13.6 78 Willow Creek Pass 9540 5.1 5.9 86 7.0 7.0 100 Zirkel 9340 -M 12.2 * -M 15.4 * ----- ----- Basin Index (%) 89 88 SWEETWATER Deer Park 9700 5.8 6.9 84 8.2 9.9 83 Larsen Creek 9000 4.3 5.4 80 6.3 -M * South Pass 9040 6.1 7.0 87 6.8 9.0 76 ----- ----- Basin Index (%) 84 79 LOWER N. PLATTE Casper Mtn. 7900 -M 6.4 * -M 7.8 * Laprele Creek 8375 3.6 4.4 82 4.0 6.3 63 Reno Hill 8400 5.0 6.3 79 6.4 7.6 84 Windy Peak 7900 3.4 3.2 106 3.7 5.4 69 ----- ----- Basin Index (%) 86 73 LARAMIE RIVER Brooklyn Lake 10240 10.7 9.1 118 11.3 10.1 112 Cinnabar Park 9574 8.7 10.4 84 12.4 13.0 95 Crow Creek 8330 4.1 4.8 85 5.2 5.8 90 Deadman Hill 10220 8.2 7.6 108 8.7 8.4 104 Rawah 9020 6.1 5.0 122 9.2 8.0 115 Roach 9700 5.7 7.6 75 8.3 9.7 86 ----- ----- Basin Index (%) 98 100 S. PLATTE Black Mountain 8920 5.1 -M * 6.9 -M * Crow Creek 8330 4.1 4.8 85 5.2 5.8 90 Deadman Hill 10220 8.2 7.6 108 8.7 8.4 104 ----- ----- Basin Index (%) 99 98 LITTLE SNAKE RIVER Battle Mountain 7440 4.4 4.8 92 6.4 7.8 82 Divide Peak 8880 5.2 9.5 55 7.8 11.2 70 Elk River 8700 7.6 8.1 94 8.8 10.0 88 Little Snake River 8915 12.1 10.5 115 16.3 16.3 100 Old Battle 10000 12.6 14.3 88 13.3 18.0 74 Sage Creek Basin 7850 5.0 6.5 77 4.6 8.2 56 Sandstone RS 8150 5.0 5.4 93 6.3 9.5 66 Whiskey Park 8950 13.6 10.6 128 14.3 13.5 106 ----- ----- Basin Index (%) 94 82 UPPER GREEN RIVER Big Sandy Opening 9080 6.7 6.7 100 6.4 6.9 93 Blind Bull Sum 8650 15.8 10.4 152 11.5 10.2 113 East Rim Divide 7930 9.0 4.9 184 7.8 6.1 128 Elkhart Park G.S. 9400 7.1 5.9 120 7.9 7.0 113 Gros Ventre Summit 8750 8.5 6.7 127 6.8 6.6 103 Gunsight Pass 9820 7.7 6.8 113 7.8 7.1 110 Kendall R.S. 7740 8.2 5.4 152 8.4 7.2 117 Loomis Park 8240 10.6 7.0 151 11.1 8.9 125 New Fork Lake 8340 7.7 5.1 151 7.6 5.7 133 Pocket Creek 9360 5.9 -M * 4.8 -M * Snider Basin 8060 9.2 5.9 156 10.5 7.3 144 Spring Creek Divide 9000 16.3 10.9 150 16.1 12.1 133 Triple Peak 8500 16.0 9.4 170 17.4 12.3 141 ----- ----- Basin Index (%) 144 122 LOWER GREEN RIVER Blacks Fork Jct 8870 3.2 -M * 5.0 -M * Buck Pasture 9700 6.1 -M * 7.6 -M * EF Blacks Fork GS 9360 3.9 -M * 5.3 -M * Hams Fork 7840 6.6 5.1 129 6.0 5.8 103 Hewinta 9519 3.4 4.2 81 5.7 7.0 81 Hickerson Park 9145 3.8 3.1 123 4.5 5.3 85 Hole-in-Rock 9150 3.1 3.2 97 4.0 5.0 80 Indian Creek 9425 11.9 10.8 110 12.1 11.0 110 Kelley R.S. 8180 8.2 6.8 121 9.1 9.2 99 Spirit Lk 10235 4.5 -M * 6.3 -M * Steel Creek Park 10200 -M 6.6 * 6.7 8.1 83 ----- ----- Basin Index (%) 111 94 UPPER BEAR RIVER Bear River RS 8777 3.3 -M * 4.2 -M * Bug Lake 7950 7.6 7.0 109 7.5 9.9 76 Burts Miller Ranch 8000 2.4 -M * 1.9 -M * Chalk Creek #1 8993 7.9 10.7 74 8.2 12.7 65 Hayden Fork 9212 5.0 6.5 77 8.2 10.5 78 Kelley R.S. 8180 8.2 6.8 121 9.1 9.2 99 Lily Lake 9156 4.6 5.6 82 5.3 8.7 61 Monte Cristo 8960 11.5 11.7 98 10.6 13.0 82 Salt River Summit 7760 7.2 5.4 133 8.8 8.3 106 ----- ----- Basin Index (%) 97 80 ----------------------------------------------------------------------------- -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.