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: JUNE 16 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 .1 .0 * 44.9 27.3 164 Black Bear 8170 20.6 10.9 189 64.5 48.7 132 Blind Bull Sum 8650 -M .0 * 41.2 25.7 160 Cottonwood Creek 7670 .0 .0 * 47.4 33.2 143 East Rim Divide 7930 .2 .0 * 24.8 16.1 154 Grand Targhee 9260 28.7 33.4 86 56.0 42.5 132 Granite Creek 6770 .0 .0 * 41.1 25.4 162 Grassy Lake 7265 -M .0 * 65.4 46.1 142 Gros Ventre Summit 8750 .0 .0 * 28.6 18.4 155 Gunsight Pass 9820 2.3 .0 * 31.0 20.2 153 Lewis Lake Divide 7850 3.3 .0 * 62.6 44.8 140 Phillips Bench 8200 4.3 .0 * 52.7 36.1 146 Salt River Summit 7760 .0 .0 * 33.1 22.1 150 Snake River Station 6920 .0 .0 * 41.1 29.5 139 Spring Creek Divide 9000 10.9 .0 * 47.1 30.6 154 Thumb Divide 7980 .4 .0 * 32.4 25.5 127 Togwotee Pass 9580 17.3 13.2 131 46.6 32.8 142 Two Ocean Plateau 9240 -M 15.4 * -M 36.4 * Willow Creek 8380 -M .0 * 61.5 44.8 137 Younts Peak 8350 .2 .0 * 37.5 22.4 167 ----- ----- Basin Index (%) 154* 145 MADISON-GALLATIN Black Bear 8170 20.6 10.9 189 64.5 48.7 132 Canyon 7870 .0 .0 * 30.9 22.5 137 Madison Plateau 7750 .0 .0 * 43.1 35.2 122 West Yellowstone 6700 .0 .0 * 27.9 20.2 138 Whiskey Creek 6800 .0 .0 * 33.6 27.7 121 ----- ----- Basin Index (%) 189* 130 YELLOWSTONE Beartooth Lake 9360 21.8 8.1 269 34.6 26.9 129 Burnt Mtn 5880 .0 .0 * 24.7 23.5 105 Canyon 7870 .0 .0 * 30.9 22.5 137 Cole Creek 7850 .0 .3 0* 20.4 23.5 87 Evening Star 9200 16.6 8.8 189 52.6 37.5 140 Fisher Creek 9100 25.1 17.6 143 55.3 42.8 129 Northeast Entrance 7350 .0 .0 * 25.1 18.5 136 Parker Peak 9400 11.0 5.5 200 42.9 25.9 166 Sylvan Lake 8420 .1 .0 * 45.1 31.8 142 Thumb Divide 7980 .4 .0 * 32.4 25.5 127 Two Ocean Plateau 9240 -M 15.4 * -M 36.4 * White Mill 8700 10.1 7.6 133 41.9 32.8 128 Wolverine 7650 -M .0 * 25.8 17.9 144 ----- ----- Basin Index (%) 178* 131 WIND RIVER Burroughs Creek 8750 .0 -M * 32.4 -M * Castle Creek 8400 .0 -M * 20.3 -M * Cold Springs 9630 .0 .0 * 25.5 16.7 153 Deer Park 9700 -M .0 * 48.5 29.0 167 Hobbs Park 10100 12.0 .0 * 39.2 22.0 178 Kirwin 9550 .1 .0 * 32.1 18.7 172 Little Warm 9370 .0 .0 * 29.5 19.9 148 Owl Creek 8975 .0 .0 * 18.4 12.1 152 South Pass 9040 1.4 .0 * 39.0 24.9 157 St. Lawrence Alt 8620 .1 .0 * 23.8 15.9 150 Togwotee Pass 9580 17.3 13.2 131 46.6 32.8 142 Townsend Creek 8700 .0 .0 * 33.6 19.5 172 ----- ----- Basin Index (%) 234* 159 BIGHORN BASIN Bald Mtn. 9380 .4 3.0 13 24.9 25.6 97 Bear Trap Meadow 8200 .0 .0 * 19.6 15.4 127 Bone Springs Div 9350 .0 .0 * 24.6 24.4 101 Grave Springs 8550 .0 .0 * 16.7 17.5 95 Kirwin 9550 .1 .0 * 32.1 18.7 172 Marquette 8760 .1 -M * 28.2 -M * Middle Powder 7760 .0 .0 * 17.9 19.0 94 Owl Creek 8975 .0 .0 * 18.4 12.1 152 Powder River Pass 9480 .0 .0 * 22.5 20.8 108 Shell Creek 9580 .0 .0 * 22.6 22.0 103 Timber Creek 7950 .0 .0 * 20.0 15.3 131 ----- ----- Basin Index (%) 17* 115 SHOSHONE RIVER Blackwater 9780 25.0 12.1 207 50.3 29.4 171 Evening Star 9200 16.6 8.8 189 52.6 37.5 140 Marquette 8760 .1 -M * 28.2 -M * Sylvan Road 7120 .0 .0 * 34.2 23.2 147 Younts Peak 8350 .2 .0 * 37.5 22.4 167 ----- ----- Basin Index (%) 200* 155 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 19.6 15.4 127 Cloud Peak Reservoir 9860 .0 .0 * 30.2 23.2 130 Grave Springs 8550 .0 .0 * 16.7 17.5 95 Hansen Sawmill 8360 .0 .0 * -M 15.9 * Middle Powder 7760 .0 .0 * 17.9 19.0 94 Powder River Pass 9480 .0 .0 * 22.5 20.8 108 Soldier Park 8720 .0 -M * 25.0 -M * ----- ----- Basin Index (%) * 111 TONGUE RIVER Big Goose 7990 .1 .0 * 22.7 19.7 115 Bone Springs Div 9350 .0 .0 * 24.6 24.4 101 Burgess Junction 7880 .0 .0 * 22.5 19.8 114 Dome Lake 8880 -M .0 * 26.8 22.2 121 Little Goose 8870 .0 -M * 27.0 -M * Sucker Creek 8880 .0 .0 * 24.7 23.5 105 Tie Creek 6870 .1 .0 * 26.0 20.9 124 ----- ----- Basin Index (%) * 113 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 15.6 19.0 82 ----- ----- Basin Index (%) * 82 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 16.8 20.5 82 North Rapid Creek 6130 .0 .0 * 17.3 18.3 95 ----- ----- Basin Index (%) * 88 UPPER N. PLATTE Arapaho Ridge 10960 1.7 .0 * 33.6 31.0 108 Blackhall Mtn 9820 3.3 -M * 45.9 -M * Columbine 9160 .0 .0 * 35.5 32.5 109 Divide Peak 8880 .0 .0 * 28.4 28.5 100 Joe Wright 10120 .0 2.8 0 38.3 35.8 107 Laprele Creek 8375 .0 .0 * 18.8 19.3 97 Med Bow 10500 15.6 -M * 45.0 -M * North French Creek 10130 1.3 8.6 15 37.1 36.7 101 Never Summer 10280 2.8 4.3 65 26.7 -M * Old Battle 10000 17.0 3.2 531* 47.0 45.0 104 Rawah 9020 .1 .0 * 23.5 21.2 111 Sage Creek Basin 7850 -M .0 * 19.5 18.9 103 Sand Lake 10050 15.9 8.4 189 36.3 35.0 104 South Brush Creek 8440 .0 .0 * 18.0 22.2 81 Tower 10500 17.7 20.1 88 56.4 51.0 111 Webber Springs 9250 .0 .0 * 40.6 34.2 119 Willow Creek Pass 9540 .1 .0 * 23.9 19.7 121 Zirkel 9340 .0 .0 * 51.0 36.0 142 ----- ----- Basin Index (%) 119* 109 SWEETWATER Deer Park 9700 -M .0 * 48.5 29.0 167 Larsen Creek 9000 .1 .0 * 28.9 -M * South Pass 9040 1.4 .0 * 39.0 24.9 157 ----- ----- Basin Index (%) * 162 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * 23.6 23.3 101 Laprele Creek 8375 .0 .0 * 18.8 19.3 97 Reno Hill 8400 .0 .0 * 23.3 24.1 97 Windy Peak 7900 .0 .0 * 19.1 17.6 109 ----- ----- Basin Index (%) * 101 LARAMIE RIVER Brooklyn Lake 10240 .2 .0 * 31.4 29.7 106 Cinnabar Park 9574 .0 .0 * 30.3 32.2 94 Crow Creek 8330 .0 .0 * 16.5 18.5 89 Deadman Hill 10220 .2 .0 * 30.3 25.2 120 Rawah 9020 .1 .0 * 23.5 21.2 111 Roach 9700 .0 .0 * 29.0 27.1 107 ----- ----- Basin Index (%) * 105 S. PLATTE Black Mountain 8920 -M -M * 21.2 -M * Crow Creek 8330 .0 .0 * 16.5 18.5 89 Deadman Hill 10220 .2 .0 * 30.3 25.2 120 ----- ----- Basin Index (%) * 107 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.1 20.1 105 Divide Peak 8880 .0 .0 * 28.4 28.5 100 Elk River 8700 .0 .0 * 25.0 26.6 94 Little Snake River 8915 .1 .0 * 46.1 38.1 121 Old Battle 10000 17.0 3.2 531* 47.0 45.0 104 Sage Creek Basin 7850 -M .0 * 19.5 18.9 103 Sandstone RS 8150 .0 .0 * 20.3 24.3 84 Whiskey Park 8950 .0 .0 * 37.7 36.3 104 ----- ----- Basin Index (%) 534* 103 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 28.2 19.3 146 Blind Bull Sum 8650 -M .0 * 41.2 25.7 160 East Rim Divide 7930 .2 .0 * 24.8 16.1 154 Elkhart Park G.S. 9400 .0 .0 * 28.4 19.2 148 Gros Ventre Summit 8750 .0 .0 * 28.6 18.4 155 Gunsight Pass 9820 2.3 .0 * 31.0 20.2 153 Kendall R.S. 7740 .0 .0 * 33.1 18.7 177 Loomis Park 8240 .2 .0 * 36.6 22.7 161 New Fork Lake 8340 .0 .0 * 23.7 15.8 150 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.7 18.4 167 Spring Creek Divide 9000 10.9 .0 * 47.1 30.6 154 Triple Peak 8500 .1 .0 * 47.9 33.0 145 ----- ----- Basin Index (%) * 155 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 20.1 -M * Buck Pasture 9632 .0 -M * 29.1 -M * EF Blacks Fork GS 9360 .0 -M * 24.3 -M * Hams Fork 7840 .1 .0 * 25.5 16.3 156 Hewinta 9500 .0 .0 * 22.6 19.6 115 Hickerson Park 9122 .0 .0 * 16.7 15.2 110 Hole-in-Rock 9168 .0 .0 * 17.6 14.8 119 Indian Creek 9425 9.5 .0 * 47.9 29.4 163 Kelley R.S. 8180 .0 .0 * 36.6 24.1 152 Spirit Lk 10235 .0 -M * 22.7 -M * Steel Creek Park 10158 .0 .0 * 27.1 23.1 117 ----- ----- Basin Index (%) * 136 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.7 -M * Bug Lake 7987 .0 .0 * 40.2 25.6 157 Burts Miller Ranch 8000 .0 -M * 12.7 -M * Chalk Creek #1 9171 .0 .0 * 43.3 33.5 129 Hayden Fork 9130 .0 .0 * 33.5 28.0 120 Kelley R.S. 8180 .0 .0 * 36.6 24.1 152 Lily Lake 9133 .0 .0 * 24.6 23.5 105 Monte Cristo 8932 .4 .0 * 48.2 34.3 141 Salt River Summit 7760 .0 .0 * 33.1 22.1 150 ----- ----- Basin Index (%) * 136 ----------------------------------------------------------------------------- -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.