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 TUESDAY: JUNE 11 , 2019 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 .0 .0 * 27.0 26.8 101 Black Bear 8170 28.1 15.5 181 55.8 48.1 116 Blind Bull Sum 8650 15.2 3.7 411 25.8 25.3 102 Cottonwood Creek 7670 .0 .0 * 35.2 32.8 107 East Rim Divide 7930 .0 .0 * 18.1 15.8 115 Grand Targhee 9260 39.1 36.1 108 43.8 41.5 106 Granite Creek 6770 .0 .0 * 28.4 25.0 114 Grassy Lake 7265 -M .0 * -M 45.5 * Gros Ventre Summit 8750 -M .0 * 18.6 18.0 103 Gunsight Pass 9820 7.4 .0 * 22.5 19.7 114 Lewis Lake Divide 7850 6.5 .0 * 47.2 44.2 107 Phillips Bench 8200 9.4 .9 1044* 40.2 35.7 113 Salt River Summit 7640 .0 .0 * 23.9 21.7 110 Snake River Station 6920 .0 .0 * 32.0 29.0 110 Spring Creek Divide 9000 11.5 1.9 605* 30.9 30.2 102 Thumb Divide 7980 .0 .0 * 25.1 25.0 100 Togwotee Pass 9580 17.4 16.6 105 32.6 32.2 101 Two Ocean Plateau 9240 19.5 19.7 99 32.8 35.9 91 Willow Creek 8080 2.2 .0 * 46.5 44.3 105 Younts Peak 8350 -M .0 * -M 21.9 * ----- ----- Basin Index (%) 166* 106 MADISON-GALLATIN Black Bear 8170 28.1 15.5 181 55.8 48.1 116 Canyon 7870 .4 .0 * 22.3 22.0 101 Madison Plateau 7750 6.8 .0 * 38.0 34.6 110 West Yellowstone 6700 .0 .0 * 23.1 19.8 117 Whiskey Creek 6800 .0 .0 * 30.3 27.1 112 ----- ----- Basin Index (%) 228* 112 YELLOWSTONE Beartooth Lake 9360 19.8 11.6 171 28.5 26.5 108 Burnt Mtn 5880 .0 .0 * 27.5 22.6 122 Canyon 7870 .4 .0 * 22.3 22.0 101 Cole Creek 7850 12.5 1.4 893* 25.0 22.9 109 Evening Star 9200 19.4 12.2 159 40.2 36.9 109 Fisher Creek 9100 21.1 21.8 97 46.1 42.0 110 Northeast Entrance 7350 .0 .0 * 20.3 17.9 113 Parker Peak 9400 16.9 8.6 197 33.8 25.4 133 Sylvan Lake 8420 2.1 .4 525* 36.5 31.1 117 Thumb Divide 7980 .0 .0 * 25.1 25.0 100 Two Ocean Plateau 9240 19.5 19.7 99 32.8 35.9 91 White Mill 8700 14.0 11.0 127 28.7 32.1 89 Wolverine 7650 .0 .0 * 19.0 17.4 109 Younts Peak 8350 -M .0 * -M 21.9 * ----- ----- Basin Index (%) 145* 108 WIND RIVER Burroughs Creek 8750 .0 -M * 22.8 -M * Castle Creek 8400 .0 -M * 13.0 -M * Cold Springs 9630 .0 .0 * 17.0 16.3 104 Deer Park 9700 4.0 .0 * 26.8 28.4 94 Hobbs Park 10100 13.1 .2 6550* 24.1 21.6 112 Kirwin 9550 .4 .0 * 21.0 18.2 115 Little Warm 9370 .0 .0 * 13.2 19.5 68 Owl Creek 8975 .0 .0 * 16.6 11.7 142 South Pass 9040 .5 .0 * 20.9 24.6 85 St. Lawrence Alt 8620 -M .0 * -M 15.5 * Togwotee Pass 9580 17.4 16.6 105 32.6 32.2 101 Townsend Creek 8700 .0 .0 * 21.6 19.1 113 ----- ----- Basin Index (%) 211* 101 BIGHORN BASIN Bald Mtn. 9380 16.6 7.1 234 24.0 24.9 96 Bear Trap Meadow 8200 .0 .0 * 15.3 14.9 103 Bone Springs Div 9350 8.1 .8 1012* 20.5 23.7 86 Grave Springs 8550 .0 .0 * 17.5 17.1 102 Kirwin 9550 .4 .0 * 21.0 18.2 115 Marquette 8760 5.1 -M * 24.8 -M * Middle Powder 7760 .0 .0 * 20.2 18.5 109 Owl Creek 8975 .0 .0 * 16.6 11.7 142 Powder River Pass 9480 .0 .0 * 16.2 20.2 80 Shell Creek 9580 8.5 2.2 386 18.8 21.3 88 Timber Creek 7950 .1 .0 * 19.5 14.8 132 ----- ----- Basin Index (%) 334* 102 SHOSHONE RIVER Blackwater 9780 22.2 14.5 153 36.2 28.8 126 Evening Star 9200 19.4 12.2 159 40.2 36.9 109 Marquette 8760 5.1 -M * 24.8 -M * Sylvan Lake 8420 2.1 .4 525* 36.5 31.1 117 Sylvan Road 7120 .0 .0 * 21.9 22.6 97 Younts Peak 8350 -M .0 * -M 21.9 * ----- ----- Basin Index (%) 161* 113 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 15.3 14.9 103 Cloud Peak Reservoir 9860 8.7 .1 8700* 22.2 22.6 98 Grave Springs 8550 .0 .0 * 17.5 17.1 102 Hansen Sawmill 8360 .1 .0 * 17.6 15.5 114 Middle Powder 7760 .0 .0 * 20.2 18.5 109 Powder River Pass 9480 .0 .0 * 16.2 20.2 80 Soldier Park 8720 .0 -M * 16.0 -M * ----- ----- Basin Index (%) 8800* 100 TONGUE RIVER Big Goose 7990 .1 .0 * 21.8 19.3 113 Bone Springs Div 9350 8.1 .8 1012* 20.5 23.7 86 Burgess Junction 7880 .0 .0 * 20.4 19.2 106 Dome Lake 8880 2.3 .0 * 22.6 21.6 105 Little Goose 8870 2.6 -M * 16.1 -M * Sucker Creek 8880 2.9 .0 * 22.5 22.9 98 Tie Creek 6870 .0 .0 * 24.4 20.1 121 ----- ----- Basin Index (%) 1675* 104 BELLE FOURCHE Blind Park 6890 .0 .0 * 12.4 19.9 62 Cole Canyon 5910 .0 .0 * 22.4 18.5 121 ----- ----- Basin Index (%) * 91 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 12.4 19.9 62 North Rapid Creek 6130 -M .0 * -M 17.6 * ----- ----- Basin Index (%) * 62 UPPER N. PLATTE Arapaho Ridge 10960 18.7 1.6 1169* 35.9 30.5 118 Blackhall Mtn 9820 18.2 -M * 42.8 -M * Columbine 9160 -M .0 * 36.3 32.2 113 Divide Peak 8880 .0 .0 * 31.7 28.2 112 Joe Wright 10120 13.9 7.2 193 38.1 35.4 108 Laprele Creek 8375 .0 .0 * 20.7 19.0 109 Med Bow 10500 34.1 -M * 45.5 -M * Never Summer 10280 19.3 9.1 212 26.2 -M * North French Creek 10130 20.4 13.3 153 39.0 36.3 107 Old Battle 10000 33.8 10.0 338 47.3 44.7 106 Rawah 9020 .1 .0 * 23.3 20.8 112 Sage Creek Basin 7850 -M .0 * 21.1 18.6 113 Sand Lake 10050 26.1 13.4 195 33.3 34.5 97 South Brush Creek 8440 .0 .0 * 18.1 22.0 82 Tower 10500 44.8 26.6 168 58.5 50.6 116 Webber Springs 9250 7.3 .0 * 40.2 33.9 119 Whiskey Park 8950 5.2 .0 * 41.1 35.9 114 Willow Creek Pass 9540 .4 .0 * 22.7 19.3 118 Zirkel 9340 .8 .0 * 45.3 35.5 128 ----- ----- Basin Index (%) 235* 111 SWEETWATER Deer Park 9700 4.0 .0 * 26.8 28.4 94 Larsen Creek 9000 .0 .0 * 18.6 -M * South Pass 9040 .5 .0 * 20.9 24.6 85 ----- ----- Basin Index (%) * 90 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * 23.5 22.9 103 Laprele Creek 8375 .0 .0 * 20.7 19.0 109 Reno Hill 8400 .1 .0 * 27.5 23.7 116 Windy Peak 7900 .1 .0 * 17.6 17.2 102 ----- ----- Basin Index (%) * 108 LARAMIE RIVER Brooklyn Lake 10240 6.8 .0 * 34.6 29.3 118 Cinnabar Park 9574 5.1 .0 * 31.7 31.6 100 Crow Creek 8330 .0 .0 * 17.1 17.9 96 Deadman Hill 10220 7.4 .3 2467* 26.0 24.9 104 Rawah 9020 .1 .0 * 23.3 20.8 112 Roach 9700 .2 .0 * 30.7 26.7 115 Windy Peak 7900 .1 .0 * 17.6 17.2 102 ----- ----- Basin Index (%) 6567* 107 S. PLATTE Black Mountain 8920 .0 -M * 19.7 -M * Crow Creek 8330 .0 .0 * 17.1 17.9 96 Deadman Hill 10220 7.4 .3 2467* 26.0 24.9 104 ----- ----- Basin Index (%) 2467* 101 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 22.0 19.8 111 Divide Peak 8880 .0 .0 * 31.7 28.2 112 Elk River 8700 .0 .0 * 26.4 26.3 100 Little Snake River 8915 3.4 .0 * 47.1 37.5 126 Old Battle 10000 33.8 10.0 338 47.3 44.7 106 Sage Creek Basin 7850 -M .0 * 21.1 18.6 113 Sandstone RS 8150 .0 .0 * 23.9 24.0 100 Whiskey Park 8950 5.2 .0 * 41.1 35.9 114 ----- ----- Basin Index (%) 424* 111 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 20.0 18.9 106 Blind Bull Sum 8650 15.2 3.7 411 25.8 25.3 102 East Rim Divide 7930 .0 .0 * 18.1 15.8 115 Elkhart Park G.S. 9400 .0 .0 * 20.9 18.9 111 Gros Ventre Summit 8750 -M .0 * 18.6 18.0 103 Gunsight Pass 9820 7.4 .0 * 22.5 19.7 114 Indian Creek 9425 11.1 2.1 529* 27.6 29.0 95 Kendall R.S. 7740 .0 .0 * 18.3 18.4 99 Loomis Park 8240 .6 .0 * 24.2 22.4 108 New Fork Lake 8340 .0 .0 * 17.0 15.5 110 Pocket Creek 9360 .0 -M * 19.8 -M * Snider Basin 8060 .0 .0 * 19.2 18.2 105 Spring Creek Divide 9000 11.5 1.9 605* 30.9 30.2 102 Triple Peak 8500 -M .0 * -M 32.5 * ----- ----- Basin Index (%) 595* 105 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 19.2 -M * Buck Pasture 9632 .0 -M * 28.6 -M * EF Blacks Fork GS 9360 .0 -M * 19.6 -M * Hams Fork 7840 .0 .0 * 20.3 16.0 127 Hewinta 9500 .0 .0 * 22.0 19.3 114 Hickerson Park 9122 .0 .0 * 17.8 15.0 119 Hole-in-Rock 9168 .0 .0 * 17.7 14.6 121 Indian Creek 9425 11.1 2.1 529* 27.6 29.0 95 Kelley R.S. 8180 .3 .0 * 24.5 23.7 103 Spirit Lk 10235 4.0 -M * 24.9 -M * Steel Creek Park 10158 8.1 1.7 476* 27.6 22.8 121 ----- ----- Basin Index (%) 513* 112 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 21.4 -M * Bug Lake 7987 .1 .0 * 32.9 25.3 130 Burts Miller Ranch 8000 .0 -M * 11.7 -M * Chalk Creek #1 9171 5.0 .0 * 38.8 33.1 117 Hayden Fork 9130 .0 .0 * 31.1 27.7 112 Kelley R.S. 8180 .3 .0 * 24.5 23.7 103 Lily Lake 9133 .0 .0 * 22.8 23.2 98 Monte Cristo 8932 13.7 .0 * 42.7 33.9 126 Salt River Summit 7640 .0 .0 * 23.9 21.7 110 Spring Creek Divide 9000 11.5 1.9 605* 30.9 30.2 102 ----- ----- Basin Index (%) 1611* 113 ----------------------------------------------------------------------------- -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.