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 WEDNESDAY: JUNE 7 , 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 * 42.9 26.3 163 Black Bear 8170 27.1 18.4 147 62.0 47.3 131 Blind Bull Sum 8650 -M 6.7 * 40.5 24.9 163 Cottonwood Creek 7670 .0 .0 * 46.8 32.2 145 East Rim Divide 7930 .1 .0 * 24.3 15.5 157 Grand Targhee 9260 37.5 37.5 100 53.5 40.3 133 Granite Creek 6770 .0 .0 * 41.2 24.7 167 Grassy Lake 7265 3.2 .0 * 63.1 44.7 141 Gros Ventre Summit 8750 -M .0 * -M 17.5 * Gunsight Pass 9820 9.0 .0 * 30.1 19.2 157 Lewis Lake Divide 7850 13.4 4.7 285 60.6 43.5 139 Phillips Bench 8200 13.0 4.6 283 51.7 35.0 148 Salt River Summit 7760 .0 .0 * 32.8 21.3 154 Snake River Station 6920 .0 .0 * 39.9 28.5 140 Spring Creek Divide 9000 20.3 6.0 338 46.7 29.7 157 Thumb Divide 7980 .5 .0 * 31.5 24.5 129 Togwotee Pass 9580 21.8 17.8 122 44.9 31.7 142 Two Ocean Plateau 9240 -M 21.6 * -M 35.2 * Willow Creek 8380 -M .0 * 60.3 43.5 139 Younts Peak 8350 .0 .8 0* 36.0 21.3 169 ----- ----- Basin Index (%) 162* 146 MADISON-GALLATIN Black Bear 8170 27.1 18.4 147 62.0 47.3 131 Canyon 7870 .0 .0 * 30.6 21.6 142 Madison Plateau 7750 .4 1.5 27* 41.5 34.0 122 West Yellowstone 6700 .0 .0 * 26.8 19.4 138 Whiskey Creek 6800 .1 .0 * 32.2 26.5 122 ----- ----- Basin Index (%) 139* 130 YELLOWSTONE Beartooth Lake 9360 26.2 13.6 193 33.5 25.9 129 Burnt Mtn 5880 .0 .0 * 24.1 21.8 111 Canyon 7870 .0 .0 * 30.6 21.6 142 Cole Creek 7850 2.3 3.5 66 20.2 22.2 91 Evening Star 9200 22.5 14.1 160 51.4 35.9 143 Fisher Creek 9100 28.9 24.4 118 53.9 41.1 131 Northeast Entrance 7350 .0 .0 * 23.9 17.4 137 Parker Peak 9400 17.8 9.9 180 41.8 24.4 171 Sylvan Lake 8420 .2 1.3 15* 43.7 30.3 144 Thumb Divide 7980 .5 .0 * 31.5 24.5 129 Two Ocean Plateau 9240 -M 21.6 * -M 35.2 * White Mill 8700 16.4 13.0 126 40.7 31.3 130 Wolverine 7650 -M .0 * 24.8 17.0 146 ----- ----- Basin Index (%) 144* 134 WIND RIVER Burroughs Creek 8750 .0 -M * 32.0 -M * Castle Creek 8400 .0 -M * 19.5 -M * Cold Springs 9630 .0 .0 * 25.5 15.9 160 Deer Park 9700 24.3 .0 * 47.8 27.7 173 Hobbs Park 10100 21.9 2.3 952 38.8 21.1 184 Kirwin 9550 4.5 .3 1500* 31.4 17.6 178 Little Warm 9370 .0 .0 * 28.4 19.0 149 Owl Creek 8975 .0 .0 * 17.8 11.3 158 South Pass 9040 16.1 .0 * 38.6 24.1 160 St. Lawrence Alt 8620 .1 .0 * 23.5 15.1 156 Togwotee Pass 9580 21.8 17.8 122 44.9 31.7 142 Townsend Creek 8700 .0 .0 * 33.4 18.8 178 ----- ----- Basin Index (%) 435* 163 BIGHORN BASIN Bald Mtn. 9380 12.4 9.9 125 23.9 24.1 99 Bear Trap Meadow 8200 .0 .0 * 17.8 14.5 123 Bone Springs Div 9350 5.4 3.5 154 24.2 23.0 105 Grave Springs 8550 .0 .0 * 16.3 16.6 98 Kirwin 9550 4.5 .3 1500* 31.4 17.6 178 Marquette 8760 .8 -M * 27.4 -M * Middle Powder 7760 .0 .0 * 16.7 17.9 93 Owl Creek 8975 .0 .0 * 17.8 11.3 158 Powder River Pass 9480 .0 .0 * 20.9 19.5 107 Shell Creek 9580 3.2 5.1 63 20.5 20.6 100 Timber Creek 7950 .0 .0 * 19.1 14.3 134 ----- ----- Basin Index (%) 136* 116 SHOSHONE RIVER Blackwater 9780 30.2 16.0 189 48.5 28.1 173 Evening Star 9200 22.5 14.1 160 51.4 35.9 143 Marquette 8760 .8 -M * 27.4 -M * Sylvan Road 7120 .0 .0 * 33.1 22.0 150 Younts Peak 8350 .0 .8 0* 36.0 21.3 169 ----- ----- Basin Index (%) 171* 158 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 17.8 14.5 123 Cloud Peak Reservoir 9860 8.5 1.2 708* 29.3 21.9 134 Grave Springs 8550 .0 .0 * 16.3 16.6 98 Hansen Sawmill 8360 .0 .0 * 21.5 14.9 144 Middle Powder 7760 .0 .0 * 16.7 17.9 93 Powder River Pass 9480 .0 .0 * 20.9 19.5 107 Soldier Park 8720 .0 -M * 23.3 -M * ----- ----- Basin Index (%) 708* 116 TONGUE RIVER Big Goose 7990 .0 .0 * 22.5 18.8 120 Bone Springs Div 9350 5.4 3.5 154 24.2 23.0 105 Burgess Junction 7880 .0 .0 * 20.5 18.7 110 Dome Lake 8880 .0 .0 * 25.7 20.9 123 Little Goose 8870 .3 -M * 26.3 -M * Sucker Creek 8880 .0 .0 * 23.4 22.2 105 Tie Creek 6870 .1 .0 * 24.9 19.4 128 ----- ----- Basin Index (%) 157* 115 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 14.4 18.0 80 ----- ----- Basin Index (%) * 80 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 15.4 19.3 80 North Rapid Creek 6130 .0 .0 * 14.3 16.9 85 ----- ----- Basin Index (%) * 82 UPPER N. PLATTE Arapaho Ridge 10960 13.4 3.6 372 33.6 30.0 112 Blackhall Mtn 9820 18.2 -M * 45.8 -M * Columbine 9160 1.0 .0 * -M 32.0 * Divide Peak 8880 .0 .0 * 28.7 27.9 103 Joe Wright 10120 10.6 10.4 102 38.3 35.1 109 Laprele Creek 8375 .4 .0 * 18.9 18.5 102 Med Bow 10500 29.0 -M * 45.0 -M * North French Creek 10130 13.4 16.4 82 37.2 35.7 104 Never Summer 10280 18.6 12.4 150 26.7 -M * Old Battle 10000 31.4 16.2 194 47.2 44.2 107 Rawah 9020 .1 .0 * 23.4 20.4 115 Sage Creek Basin 7850 -M .0 * 19.5 18.2 107 Sand Lake 10050 28.2 17.2 164 35.8 34.0 105 South Brush Creek 8440 .0 .0 * 18.1 21.5 84 Tower 10500 31.4 31.8 99 56.5 50.1 113 Webber Springs 9250 .1 .0 * 40.7 33.6 121 Willow Creek Pass 9540 1.0 .0 * 24.1 19.0 127 Zirkel 9340 .0 .0 * 51.0 34.9 146 ----- ----- Basin Index (%) 139* 112 SWEETWATER Deer Park 9700 24.3 .0 * 47.8 27.7 173 Larsen Creek 9000 .0 .0 * 28.4 -M * South Pass 9040 16.1 .0 * 38.6 24.1 160 ----- ----- Basin Index (%) * 167 LOWER N. PLATTE Casper Mtn. 7900 .4 .0 * 23.4 22.5 104 Laprele Creek 8375 .4 .0 * 18.9 18.5 102 Reno Hill 8400 .0 .0 * 23.4 23.3 100 Windy Peak 7900 .1 .0 * 19.0 16.7 114 ----- ----- Basin Index (%) * 105 LARAMIE RIVER Brooklyn Lake 10240 .2 1.0 20* 30.4 28.8 106 Cinnabar Park 9574 .0 .0 * 30.3 31.2 97 Crow Creek 8330 .0 .0 * 16.2 17.5 93 Deadman Hill 10220 10.7 2.0 535 30.4 24.6 124 Rawah 9020 .1 .0 * 23.4 20.4 115 Roach 9700 .2 .0 * 29.1 26.4 110 ----- ----- Basin Index (%) 373* 107 S. PLATTE Black Mountain 8920 -M -M * 21.2 -M * Crow Creek 8330 .0 .0 * 16.2 17.5 93 Deadman Hill 10220 10.7 2.0 535 30.4 24.6 124 ----- ----- Basin Index (%) 535* 111 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 21.1 19.6 108 Divide Peak 8880 .0 .0 * 28.7 27.9 103 Elk River 8700 .0 .0 * 25.2 26.0 97 Little Snake River 8915 .2 .4 50* 46.1 37.0 125 Old Battle 10000 31.4 16.2 194 47.2 44.2 107 Sage Creek Basin 7850 -M .0 * 19.5 18.2 107 Sandstone RS 8150 .0 .0 * 20.6 23.7 87 Whiskey Park 8950 .6 .2 300* 37.7 35.5 106 ----- ----- Basin Index (%) 192* 106 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 27.6 18.5 149 Blind Bull Sum 8650 -M 6.7 * 40.5 24.9 163 East Rim Divide 7930 .1 .0 * 24.3 15.5 157 Elkhart Park G.S. 9400 .0 .0 * 27.8 18.5 150 Gros Ventre Summit 8750 -M .0 * -M 17.5 * Gunsight Pass 9820 9.0 .0 * 30.1 19.2 157 Kendall R.S. 7740 .0 .0 * 32.1 18.1 177 Loomis Park 8240 .2 .0 * 35.8 22.0 163 New Fork Lake 8340 .0 .0 * 23.3 15.1 154 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 .0 .0 * 30.3 17.9 169 Spring Creek Divide 9000 20.3 6.0 338 46.7 29.7 157 Triple Peak 8500 4.2 .0 * 46.4 32.0 145 ----- ----- Basin Index (%) 563* 158 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 20.0 -M * Buck Pasture 9632 .0 -M * 28.8 -M * EF Blacks Fork GS 9360 .0 -M * 24.1 -M * Hams Fork 7840 .2 .0 * 25.2 15.7 161 Hewinta 9500 .0 .0 * 22.4 19.0 118 Hickerson Park 9122 .0 .0 * 16.7 14.7 114 Hole-in-Rock 9168 .0 .0 * 17.5 14.3 122 Indian Creek 9425 18.1 5.5 329 47.6 28.5 167 Kelley R.S. 8180 .0 .0 * 35.8 23.3 154 Spirit Lk 10235 .0 -M * 22.7 -M * Steel Creek Park 10158 3.2 6.0 53 26.9 22.5 120 ----- ----- Basin Index (%) 187* 139 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.5 -M * Bug Lake 7987 .0 .0 * 39.3 25.0 157 Burts Miller Ranch 8000 .0 -M * 12.6 -M * Chalk Creek #1 9171 .2 1.4 14* 42.9 32.6 132 Hayden Fork 9130 .0 .0 * 33.3 27.2 122 Kelley R.S. 8180 .0 .0 * 35.8 23.3 154 Lily Lake 9133 .0 .0 * 24.2 22.8 106 Monte Cristo 8932 5.3 .0 * 46.5 33.4 139 Salt River Summit 7760 .0 .0 * 32.8 21.3 154 ----- ----- Basin Index (%) 393* 137 ----------------------------------------------------------------------------- -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.