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 2 , 2015 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 8.2 7.3 112 9.5 10.2 93 Black Bear 8170 15.1 18.1 83 16.2 18.3 89 Blind Bull Sum 8650 13.9 9.2 151 10.3 9.5 108 Cottonwood Creek 7670 11.7 8.6 136 14.3 11.4 125 East Rim Divide 7930 7.3 4.4 166 7.0 5.6 125 Grand Targhee 9260 19.5 17.6 111 16.6 15.1 110 Granite Creek 6770 10.5 6.6 159 11.3 9.7 116 Grassy Lake 7265 13.7 13.0 105 14.6 17.5 83 Gros Ventre Summit 8750 8.2 6.3 130 6.5 6.2 105 Gunsight Pass 9820 7.2 6.2 116 7.3 6.6 111 Lewis Lake Divide 7850 13.1 13.5 97 15.7 17.2 91 Phillips Bench 8200 12.5 11.2 112 14.1 13.2 107 Salt River Summit 7760 6.0 5.0 120 7.9 7.7 103 Snake River Station 6920 9.2 6.5 142 11.3 11.2 101 Spring Creek Divide 9000 14.1 10.3 137 14.1 11.1 127 Thumb Divide 7980 6.2 6.3 98 7.4 9.0 82 Togwotee Pass 9580 12.3 11.2 110 13.3 11.7 114 Two Ocean Plateau 9240 14.2 12.7 112 12.6 13.0 97 Willow Creek 8380 12.9 11.1 116 16.2 15.9 102 Younts Peak 8350 -M 7.1 * -M 7.9 * ----- ----- Basin Index (%) 117 103 MADISON-GALLATIN Black Bear 8170 15.1 18.1 83 16.2 18.3 89 Canyon 7870 6.4 5.6 114 7.4 8.0 92 Madison Plateau 7750 9.4 10.4 90 10.3 12.7 81 West Yellowstone 6700 4.2 4.8 88 5.8 7.3 79 Whiskey Creek 6800 6.0 6.8 88 7.8 10.0 78 ----- ----- Basin Index (%) 90 84 YELLOWSTONE Beartooth Lake 9360 11.6 10.1 115 11.3 9.3 122 Burnt Mtn 5880 4.0 1.9 211 6.8 6.8 100 Canyon 7870 6.4 5.6 114 7.4 8.0 92 Cole Creek 7850 6.2 6.4 97 5.0 6.4 78 Evening Star 9200 13.6 11.7 116 14.9 13.4 111 Fisher Creek 9100 15.8 15.1 105 14.9 15.3 97 Northeast Entrance 7350 5.9 4.2 140 8.3 6.3 132 Parker Peak 9400 11.9 10.0 119 11.5 8.6 134 Sylvan Lake 8420 8.4 9.3 90 10.5 11.4 92 Thumb Divide 7980 6.2 6.3 98 7.4 9.0 82 Two Ocean Plateau 9240 14.2 12.7 112 12.6 13.0 97 White Mill 8700 12.9 10.1 128 12.4 11.5 108 Wolverine 7650 7.7 4.9 157 7.8 6.3 124 ----- ----- Basin Index (%) 115 104 WIND RIVER Burroughs Creek 8750 7.8 6.4 122 9.1 7.8 117 Castle Creek 8400 5.0 -M * 5.2 -M * Cold Springs 9630 4.3 3.2 134 5.2 5.0 104 Deer Park 9700 6.0 6.6 91 8.0 9.2 87 Hobbs Park 10100 5.4 6.6 82 6.2 6.3 98 Kirwin 9550 6.5 4.4 148 7.6 5.7 133 Little Warm 9370 5.7 4.6 124 6.8 6.2 110 Owl Creek 8975 2.7 2.6 104 4.6 2.9 159 South Pass 9040 6.0 6.7 90 6.6 8.5 78 St. Lawrence Alt 8620 2.4 3.1 77 3.4 4.3 79 Togwotee Pass 9580 12.3 11.2 110 13.3 11.7 114 Townsend Creek 8700 3.3 4.2 79 5.5 5.8 95 ----- ----- Basin Index (%) 105 104 BIGHORN BASIN Bald Mtn. 9380 7.8 8.6 91 6.6 8.0 82 Bear Trap Meadow 8200 3.7 2.6 142 4.1 4.2 98 Bone Springs Div 9350 6.4 7.4 86 5.8 7.2 81 Grave Springs 8550 3.6 3.4 106 3.6 5.2 69 Kirwin 9550 6.5 4.4 148 7.6 5.7 133 Marquette 8760 3.4 -M * 4.7 -M * Middle Powder 7760 5.3 5.0 106 -M 6.1 * Owl Creek 8975 2.7 2.6 104 4.6 2.9 159 Powder River Pass 9480 5.4 4.8 112 6.5 6.0 108 Shell Creek 9580 5.7 7.3 78 6.0 6.6 91 Timber Creek 7950 3.2 2.2 145 4.6 3.9 118 ----- ----- Basin Index (%) 104 99 SHOSHONE RIVER Blackwater 9780 11.4 10.6 108 11.1 10.1 110 Evening Star 9200 13.6 11.7 116 14.9 13.4 111 Marquette 8760 3.4 -M * 4.7 -M * Sylvan Road 7120 6.5 5.5 118 9.2 9.1 101 Younts Peak 8350 -M 7.1 * -M 7.9 * ----- ----- Basin Index (%) 113 108 POWDER RIVER Bear Trap Meadow 8200 3.7 2.6 142 4.1 4.2 98 Cloud Peak Reservoir 9860 6.5 6.4 102 6.9 6.3 110 Grave Springs 8550 3.6 3.4 106 3.6 5.2 69 Hansen Sawmill 8360 4.1 3.0 137 4.9 4.1 120 Middle Powder 7760 5.3 5.0 106 -M 6.1 * Powder River Pass 9480 5.4 4.8 112 6.5 6.0 108 Soldier Park 8720 3.5 -M * 4.7 -M * ----- ----- Basin Index (%) 113 101 TONGUE RIVER Big Goose 7990 4.2 3.7 114 5.0 5.4 93 Bone Springs Div 9350 6.4 7.4 86 5.8 7.2 81 Burgess Junction 7880 5.0 4.8 104 5.4 6.0 90 Dome Lake 8880 3.7 5.5 67 5.9 6.8 87 Little Goose 8870 4.4 -M * 5.7 -M * Sucker Creek 8880 5.5 5.2 106 6.5 6.8 96 Tie Creek 6870 3.0 2.1 143 5.2 5.7 91 ----- ----- Basin Index (%) 97 89 BELLE FOURCHE Cole Canyon 5910 2.1 2.3 91 4.5 4.7 96 ----- ----- Basin Index (%) 91 96 CHEYENNE RIVER BASIN Blind Park 6890 3.0 3.3 91 4.7 6.1 77 North Rapid Creek 6130 3.8 3.2 119 5.6 5.0 112 ----- ----- Basin Index (%) 105 93 UPPER N. PLATTE Arapaho Ridge 10960 8.7 9.6 91 10.2 11.0 93 Blackhall Mtn 9820 10.8 -M * 13.8 -M * Columbine 9160 10.1 8.9 113 12.0 11.7 103 Divide Peak 8880 4.8 8.6 56 7.4 10.4 71 Joe Wright 10120 8.8 9.5 93 14.3 12.2 117 Laprele Creek 8375 3.3 4.0 82 3.9 6.0 65 Med Bow 10500 15.2 -M * 14.9 -M * North French Creek 10130 11.9 11.9 100 12.2 12.2 100 Never Summer 10280 8.3 8.8 94 9.2 -M * Old Battle 10000 11.9 12.8 93 12.4 16.6 75 Rawah 9020 6.1 4.6 133 8.9 7.4 120 Sage Creek Basin 7850 4.6 6.0 77 4.5 7.7 58 Sand Lake 10050 11.5 12.0 96 10.4 11.4 91 South Brush Creek 8440 4.0 4.9 82 5.1 7.3 70 Tower 10500 17.2 18.7 92 18.8 18.6 101 Webber Springs 9250 8.4 9.7 87 10.0 12.7 79 Willow Creek Pass 9540 5.0 5.5 91 6.9 6.6 105 Zirkel 9340 -M 10.2 * -M 13.9 * ----- ----- Basin Index (%) 92 90 SWEETWATER Deer Park 9700 6.0 6.6 91 8.0 9.2 87 Larsen Creek 9000 4.5 5.0 90 6.2 -M * South Pass 9040 6.0 6.7 90 6.6 8.5 78 ----- ----- Basin Index (%) 90 82 LOWER N. PLATTE Casper Mtn. 7900 -M 6.0 * -M 7.4 * Laprele Creek 8375 3.3 4.0 82 3.9 6.0 65 Reno Hill 8400 4.6 5.9 78 6.1 7.2 85 Windy Peak 7900 3.2 3.1 103 3.6 5.2 69 ----- ----- Basin Index (%) 85 74 LARAMIE RIVER Brooklyn Lake 10240 9.4 8.0 118 10.3 9.4 110 Cinnabar Park 9574 8.3 9.2 90 11.2 11.7 96 Crow Creek 8330 3.9 4.6 85 5.0 5.5 91 Deadman Hill 10220 7.4 7.2 103 8.2 7.9 104 Rawah 9020 6.1 4.6 133 8.9 7.4 120 Roach 9700 5.2 7.0 74 7.8 9.0 87 ----- ----- Basin Index (%) 99 101 S. PLATTE Black Mountain 8920 4.8 -M * 6.7 -M * Crow Creek 8330 3.9 4.6 85 5.0 5.5 91 Deadman Hill 10220 7.4 7.2 103 8.2 7.9 104 ----- ----- Basin Index (%) 96 99 LITTLE SNAKE RIVER Battle Mountain 7440 4.2 4.3 98 6.0 7.1 85 Divide Peak 8880 4.8 8.6 56 7.4 10.4 71 Elk River 8700 7.1 7.0 101 8.3 9.2 90 Little Snake River 8915 10.9 9.2 118 15.2 15.1 101 Old Battle 10000 11.9 12.8 93 12.4 16.6 75 Sage Creek Basin 7850 4.6 6.0 77 4.5 7.7 58 Sandstone RS 8150 5.0 4.5 111 6.2 8.6 72 Whiskey Park 8950 11.8 9.7 122 12.6 12.4 102 ----- ----- Basin Index (%) 97 83 UPPER GREEN RIVER Big Sandy Opening 9080 6.4 6.1 105 6.2 6.4 97 Blind Bull Sum 8650 13.9 9.2 151 10.3 9.5 108 East Rim Divide 7930 7.3 4.4 166 7.0 5.6 125 Elkhart Park G.S. 9400 6.4 5.7 112 7.5 6.5 115 Gros Ventre Summit 8750 8.2 6.3 130 6.5 6.2 105 Gunsight Pass 9820 7.2 6.2 116 7.3 6.6 111 Kendall R.S. 7740 7.4 4.9 151 7.5 6.7 112 Loomis Park 8240 9.5 6.7 142 10.1 8.3 122 New Fork Lake 8340 6.7 4.6 146 6.7 5.2 129 Pocket Creek 9360 6.0 -M * 4.6 -M * Snider Basin 8060 7.9 5.3 149 9.2 6.7 137 Spring Creek Divide 9000 14.1 10.3 137 14.1 11.1 127 Triple Peak 8500 14.2 8.4 169 15.4 11.3 136 ----- ----- Basin Index (%) 140 120 LOWER GREEN RIVER Blacks Fork Jct 8870 3.0 -M * 5.0 -M * Buck Pasture 9700 6.0 -M * 7.6 -M * EF Blacks Fork GS 9360 3.8 -M * 5.3 -M * Hams Fork 7840 5.9 4.6 128 5.6 5.3 106 Hewinta 9519 2.4 3.9 62 5.6 6.5 86 Hickerson Park 9145 3.8 2.9 131 4.5 5.0 90 Hole-in-Rock 9150 2.8 3.0 93 3.9 4.6 85 Indian Creek 9425 10.6 10.1 105 11.2 10.1 111 Kelley R.S. 8180 7.3 6.3 116 8.0 8.6 93 Spirit Lk 10235 4.5 -M * 6.1 -M * Steel Creek Park 10200 5.2 6.2 84 6.6 7.6 87 ----- ----- Basin Index (%) 103 95 UPPER BEAR RIVER Bear River RS 8777 3.2 -M * 4.2 -M * Bug Lake 7950 7.8 6.4 122 7.1 9.2 77 Burts Miller Ranch 8000 2.0 -M * 1.9 -M * Chalk Creek #1 8993 7.7 9.8 79 8.2 11.7 70 Hayden Fork 9212 5.1 6.0 85 8.2 9.7 85 Kelley R.S. 8180 7.3 6.3 116 8.0 8.6 93 Lily Lake 9156 4.4 5.2 85 5.3 8.1 65 Monte Cristo 8960 10.9 10.1 108 10.5 12.0 88 Salt River Summit 7760 6.0 5.0 120 7.9 7.7 103 ----- ----- 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.