Water Resources Data System & State Climate Office

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 SUNDAY: JULY 9 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 .0 .0 * 45.7 28.0 163 Black Bear 8170 .1 .0 * 65.7 50.0 131 Blind Bull Sum 8650 .7 .0 * 42.1 26.6 158 Cottonwood Creek 7670 .0 .0 * 48.2 34.3 141 East Rim Divide 7930 .2 .0 * 25.9 16.7 155 Grand Targhee 9260 .2 1.9 11* 56.9 43.4 131 Granite Creek 6770 .0 .0 * 43.3 26.2 165 Grassy Lake 7265 -M .0 * 66.8 47.3 141 Gros Ventre Summit 8750 -M .0 * -M 19.2 * Gunsight Pass 9820 .0 .0 * 32.0 21.1 152 Lewis Lake Divide 7850 .0 .0 * 64.4 46.0 140 Phillips Bench 8200 .1 .0 * 54.0 37.0 146 Salt River Summit 7760 .0 .0 * 33.1 22.9 145 Snake River Station 6920 .3 .0 * 43.1 30.7 140 Spring Creek Divide 9000 .0 .0 * 47.4 31.5 150 Thumb Divide 7980 .5 .0 * 33.4 26.4 127 Togwotee Pass 9580 .0 .0 * 48.4 33.7 144 Two Ocean Plateau 9240 -M .0 * -M 38.0 * Willow Creek 8380 -M .0 * -M 46.0 * Younts Peak 8350 .1 .0 * 39.6 23.6 168 ----- ----- Basin Index (%) 116* 145 MADISON-GALLATIN Black Bear 8170 .1 .0 * 65.7 50.0 131 Canyon 7870 .0 .0 * 31.7 23.8 133 Madison Plateau 7750 .0 .0 * 44.0 36.4 121 West Yellowstone 6700 .0 .0 * 28.3 20.9 135 Whiskey Creek 6800 .1 .0 * 34.5 28.9 119 ----- ----- Basin Index (%) * 128 YELLOWSTONE Beartooth Lake 9360 .0 .0 * 35.7 28.4 126 Burnt Mtn 5880 .0 .0 * 26.2 25.0 105 Canyon 7870 .0 .0 * 31.7 23.8 133 Cole Creek 7850 .0 .0 * 21.2 25.4 83 Evening Star 9200 .0 .0 * 56.1 39.0 144 Fisher Creek 9100 .0 .0 * 57.8 45.1 128 Northeast Entrance 7350 .0 .0 * 26.2 20.1 130 Parker Peak 9400 .1 .0 * 45.1 27.4 165 Sylvan Lake 8420 .0 .0 * 46.9 33.1 142 Thumb Divide 7980 .5 .0 * 33.4 26.4 127 Two Ocean Plateau 9240 -M .0 * -M 38.0 * White Mill 8700 .1 .0 * 43.8 34.6 127 Wolverine 7650 -M .0 * 27.4 19.0 144 ----- ----- Basin Index (%) * 130 WIND RIVER Burroughs Creek 8750 .0 -M * 34.1 -M * Castle Creek 8400 .0 -M * 21.5 -M * Cold Springs 9630 .0 .0 * 26.4 17.7 149 Deer Park 9700 .0 .0 * 48.8 30.1 162 Hobbs Park 10100 .0 .0 * 39.9 23.3 171 Kirwin 9550 .0 .0 * 33.8 20.0 169 Little Warm 9370 .0 .0 * 31.1 21.0 148 Owl Creek 8975 .0 .0 * 19.5 13.2 148 South Pass 9040 .0 .0 * 39.2 25.8 152 St. Lawrence Alt 8620 .1 .0 * 24.2 16.8 144 Togwotee Pass 9580 .0 .0 * 48.4 33.7 144 Townsend Creek 8700 .0 .0 * 33.3 20.5 162 ----- ----- Basin Index (%) * 155 BIGHORN BASIN Bald Mtn. 9380 .0 .0 * 26.5 27.2 97 Bear Trap Meadow 8200 .0 .0 * 20.1 16.6 121 Bone Springs Div 9350 .0 .0 * 26.9 25.8 104 Grave Springs 8550 .0 .0 * 16.9 18.8 90 Kirwin 9550 .0 .0 * 33.8 20.0 169 Marquette 8760 .0 -M * 29.1 -M * Middle Powder 7760 .0 .0 * 18.6 20.4 91 Owl Creek 8975 .0 .0 * 19.5 13.2 148 Powder River Pass 9480 .0 .0 * 23.9 22.2 108 Shell Creek 9580 .0 .0 * 25.0 23.5 106 Timber Creek 7950 .0 .0 * 20.6 16.4 126 ----- ----- Basin Index (%) * 114 SHOSHONE RIVER Blackwater 9780 .0 .0 * 51.9 30.6 170 Evening Star 9200 .0 .0 * 56.1 39.0 144 Marquette 8760 .0 -M * 29.1 -M * Sylvan Road 7120 .0 .0 * 36.0 24.2 149 Younts Peak 8350 .1 .0 * 39.6 23.6 168 ----- ----- Basin Index (%) * 156 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 20.1 16.6 121 Cloud Peak Reservoir 9860 .0 .0 * 32.0 24.8 129 Grave Springs 8550 .0 .0 * 16.9 18.8 90 Hansen Sawmill 8360 .0 .0 * -M 17.3 * Middle Powder 7760 .0 .0 * 18.6 20.4 91 Powder River Pass 9480 .0 .0 * 23.9 22.2 108 Soldier Park 8720 .0 -M * 26.1 -M * ----- ----- Basin Index (%) * 108 TONGUE RIVER Big Goose 7990 .0 .0 * 23.6 20.5 115 Bone Springs Div 9350 .0 .0 * 26.9 25.8 104 Burgess Junction 7880 .0 .0 * 24.0 21.0 114 Dome Lake 8880 -M .0 * 28.7 23.4 123 Little Goose 8870 .0 -M * 28.2 -M * Sucker Creek 8880 .0 .0 * 28.3 25.0 113 Tie Creek 6870 .1 .0 * 27.0 22.2 122 ----- ----- Basin Index (%) * 115 BELLE FOURCHE Cole Canyon 5910 .1 .0 * 17.0 20.4 83 ----- ----- Basin Index (%) * 83 CHEYENNE RIVER BASIN Blind Park 6890 .1 .0 * 18.2 22.6 81 North Rapid Creek 6130 .0 .0 * 17.8 20.5 87 ----- ----- Basin Index (%) * 84 UPPER N. PLATTE Arapaho Ridge 10960 .0 .0 * 33.6 32.0 105 Blackhall Mtn 9820 -M -M * 45.9 -M * Columbine 9160 .2 .0 * 35.8 33.5 107 Divide Peak 8880 .0 .0 * 27.9 29.3 95 Joe Wright 10120 .0 .0 * 38.4 37.3 103 Laprele Creek 8375 .0 .0 * 19.3 20.1 96 Med Bow 10500 .0 -M * 45.5 -M * North French Creek 10130 .1 .0 * 37.3 38.0 98 Never Summer 10280 .0 .0 * 26.7 -M * Old Battle 10000 .0 .0 * 47.2 46.1 102 Rawah 9020 .1 .0 * 23.6 22.0 107 Sage Creek Basin 7850 -M .0 * 19.5 19.6 99 Sand Lake 10050 .1 .0 * 38.8 36.1 107 South Brush Creek 8440 .0 .0 * 18.0 23.1 78 Tower 10500 .0 .0 * 58.6 52.3 112 Webber Springs 9250 -M .0 * 40.5 35.3 115 Willow Creek Pass 9540 .1 .0 * 23.8 20.9 114 Zirkel 9340 .2 .0 * 51.3 37.2 138 ----- ----- Basin Index (%) * 106 SWEETWATER Deer Park 9700 .0 .0 * 48.8 30.1 162 Larsen Creek 9000 .0 .0 * 28.8 -M * South Pass 9040 .0 .0 * 39.2 25.8 152 ----- ----- Basin Index (%) * 157 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * 24.4 24.3 100 Laprele Creek 8375 .0 .0 * 19.3 20.1 96 Reno Hill 8400 .0 .0 * 23.6 25.0 94 Windy Peak 7900 .2 .0 * 19.8 18.7 106 ----- ----- Basin Index (%) * 99 LARAMIE RIVER Brooklyn Lake 10240 .2 .0 * 31.6 30.8 103 Cinnabar Park 9574 .0 .0 * 30.7 33.2 92 Crow Creek 8330 -M .0 * 16.9 20.1 84 Deadman Hill 10220 .0 .0 * 30.5 26.2 116 Rawah 9020 .1 .0 * 23.6 22.0 107 Roach 9700 .0 .0 * 29.0 28.2 103 ----- ----- Basin Index (%) * 101 S. PLATTE Black Mountain 8920 -M -M * 21.3 -M * Crow Creek 8330 -M .0 * 16.9 20.1 84 Deadman Hill 10220 .0 .0 * 30.5 26.2 116 ----- ----- Basin Index (%) * 102 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.1 20.7 102 Divide Peak 8880 .0 .0 * 27.9 29.3 95 Elk River 8700 .0 .0 * 25.2 27.5 92 Little Snake River 8915 .2 .0 * 46.3 38.8 119 Old Battle 10000 .0 .0 * 47.2 46.1 102 Sage Creek Basin 7850 -M .0 * 19.5 19.6 99 Sandstone RS 8150 .0 .0 * 20.3 25.0 81 Whiskey Park 8950 -M .0 * 37.8 37.1 102 ----- ----- Basin Index (%) * 100 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 28.5 20.1 142 Blind Bull Sum 8650 .7 .0 * 42.1 26.6 158 East Rim Divide 7930 .2 .0 * 25.9 16.7 155 Elkhart Park G.S. 9400 -M .0 * 28.9 20.1 144 Gros Ventre Summit 8750 -M .0 * -M 19.2 * Gunsight Pass 9820 .0 .0 * 32.0 21.1 152 Kendall R.S. 7740 .0 .0 * 34.8 19.4 179 Loomis Park 8240 .2 .0 * 38.3 23.4 164 New Fork Lake 8340 .0 .0 * 25.7 16.6 155 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.7 19.0 162 Spring Creek Divide 9000 .0 .0 * 47.4 31.5 150 Triple Peak 8500 .0 .0 * 48.7 34.0 143 ----- ----- Basin Index (%) * 154 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 20.0 -M * Buck Pasture 9632 .0 -M * 29.2 -M * EF Blacks Fork GS 9360 -M -M * 24.3 -M * Hams Fork 7840 .4 .0 * 26.1 16.9 154 Hewinta 9500 .0 .0 * 22.6 20.7 109 Hickerson Park 9122 .2 .0 * 17.0 16.4 104 Hole-in-Rock 9168 .0 .0 * 17.7 15.9 111 Indian Creek 9425 .1 .0 * 48.3 30.1 160 Kelley R.S. 8180 .0 .0 * 37.1 24.7 150 Spirit Lk 10235 .0 -M * 23.1 -M * Steel Creek Park 10158 -M .0 * 26.9 24.1 112 ----- ----- Basin Index (%) * 132 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.6 -M * Bug Lake 7987 .7 .0 * 40.1 26.1 154 Burts Miller Ranch 8000 .0 -M * 12.6 -M * Chalk Creek #1 9171 .0 .0 * 43.1 34.5 125 Hayden Fork 9130 .0 .0 * 33.1 28.9 115 Kelley R.S. 8180 .0 .0 * 37.1 24.7 150 Lily Lake 9133 .0 .0 * 24.4 24.4 100 Monte Cristo 8932 .3 .0 * 48.2 34.8 139 Salt River Summit 7760 .0 .0 * 33.1 22.9 145 ----- ----- Basin Index (%) * 132 ----------------------------------------------------------------------------- -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.