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 THURSDAY: MAY 26 , 2016 ------------------------------------------------------------------------------ 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 * 23.3 25.1 93 Black Bear 8170 19.1 30.6 62 40.5 45.4 89 Blind Bull Sum 8650 19.3 16.5 117 20.4 23.8 86 Cottonwood Creek 7670 1.9 .7 271* 34.3 30.8 111 East Rim Divide 7930 .0 .0 * 14.6 14.6 100 Grand Targhee 9260 36.3 41.2 88 38.5 38.0 101 Granite Creek 6770 .0 .0 * 21.1 23.5 90 Grassy Lake 7265 3.6 11.2 32 41.5 42.8 97 Gros Ventre Summit 8750 .0 1.6 0 13.9 16.5 84 Gunsight Pass 9820 9.7 6.5 149 19.4 18.2 107 Lewis Lake Divide 7850 3.3 17.6 19 35.8 41.8 86 Phillips Bench 8200 6.1 14.4 42 31.2 33.5 93 Salt River Summit 7760 .0 .0 * 21.8 20.4 107 Snake River Station 6920 .1 .0 * 25.9 27.1 96 Spring Creek Divide 9000 21.2 15.9 133 31.0 28.7 108 Thumb Divide 7980 .0 .0 * 18.1 23.3 78 Togwotee Pass 9580 17.8 22.2 80 30.5 30.4 100 Two Ocean Plateau 9240 -M 27.6 * -M 33.6 * Willow Creek 8380 6.6 9.8 67 41.6 41.8 100 Younts Peak 8350 .0 9.1 0 16.9 20.2 84 ----- ----- Basin Index (%) 73 95 MADISON-GALLATIN Black Bear 8170 19.1 30.6 62 40.5 45.4 89 Canyon 7870 .0 .0 * 15.9 20.4 78 Madison Plateau 7750 3.2 11.4 28 27.1 32.3 84 West Yellowstone 6700 .1 .0 * 16.3 18.0 91 Whiskey Creek 6800 .0 1.9 0 20.0 25.0 80 ----- ----- Basin Index (%) 51 85 YELLOWSTONE Beartooth Lake 9360 14.9 20.1 74 21.3 24.7 86 Burnt Mtn 5880 .0 .0 * 17.6 20.1 88 Canyon 7870 .0 .0 * 15.9 20.4 78 Cole Creek 7850 8.5 13.1 65 19.8 20.4 97 Evening Star 9200 17.8 21.4 83 32.8 34.2 96 Fisher Creek 9100 23.6 30.7 77 30.4 39.2 78 Northeast Entrance 7350 .0 .0 * 14.1 16.1 88 Parker Peak 9400 10.3 18.1 57 24.8 23.1 107 Sylvan Lake 8420 .5 12.1 4 28.4 28.4 100 Thumb Divide 7980 .0 .0 * 18.1 23.3 78 Two Ocean Plateau 9240 -M 27.6 * -M 33.6 * White Mill 8700 13.8 20.5 67 25.2 29.6 85 Wolverine 7650 .7 .0 * 15.0 16.0 94 ----- ----- Basin Index (%) 66 89 WIND RIVER Burroughs Creek 8750 .0 -M * 18.3 -M * Castle Creek 8400 .0 -M * 11.0 -M * Cold Springs 9630 1.4 .0 * 17.7 14.9 119 Deer Park 9700 15.2 7.6 200 27.9 26.7 104 Hobbs Park 10100 20.7 10.2 203 27.7 19.9 139 Kirwin 9550 6.7 5.5 122 19.5 16.4 119 Little Warm 9370 .0 .1 0* 15.7 17.9 88 Owl Creek 8975 .0 .0 * 13.0 10.2 127 South Pass 9040 11.3 2.0 565 22.2 23.0 97 St. Lawrence Alt 8620 .0 .0 * 19.5 13.9 140 Togwotee Pass 9580 17.8 22.2 80 30.5 30.4 100 Townsend Creek 8700 5.5 .0 * 24.4 17.7 138 ----- ----- Basin Index (%) 165* 114 BIGHORN BASIN Bald Mtn. 9380 11.6 16.8 69 17.4 22.9 76 Bear Trap Meadow 8200 .0 .0 * 12.1 13.4 90 Bone Springs Div 9350 8.1 12.2 66 16.6 21.7 76 Grave Springs 8550 .0 .0 * 12.1 15.7 77 Kirwin 9550 6.7 5.5 122 19.5 16.4 119 Marquette 8760 .0 -M * 16.5 -M * Middle Powder 7760 .9 .5 180* 14.2 16.9 84 Owl Creek 8975 .0 .0 * 13.0 10.2 127 Powder River Pass 9480 .5 1.4 36 13.1 18.1 72 Shell Creek 9580 9.1 13.2 69 14.8 19.3 77 Timber Creek 7950 .0 .0 * 17.9 12.9 139 ----- ----- Basin Index (%) 74* 90 SHOSHONE RIVER Blackwater 9780 20.5 22.9 90 29.6 26.8 110 Evening Star 9200 17.8 21.4 83 32.8 34.2 96 Marquette 8760 .0 -M * 16.5 -M * Sylvan Road 7120 .0 .0 * 18.2 20.8 88 Younts Peak 8350 .0 9.1 0 16.9 20.2 84 ----- ----- Basin Index (%) 72 96 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 12.1 13.4 90 Cloud Peak Reservoir 9860 9.0 11.2 80 19.8 20.5 97 Grave Springs 8550 .0 .0 * 12.1 15.7 77 Hansen Sawmill 8360 .0 .0 * 13.7 13.6 101 Middle Powder 7760 .9 .5 180* 14.2 16.9 84 Powder River Pass 9480 .5 1.4 36 13.1 18.1 72 Soldier Park 8720 .0 -M * 13.5 -M * ----- ----- Basin Index (%) 79* 87 TONGUE RIVER Big Goose 7990 1.2 .2 600* 15.6 17.9 87 Bone Springs Div 9350 8.1 12.2 66 16.6 21.7 76 Burgess Junction 7880 2.3 3.8 61 15.2 17.6 86 Dome Lake 8880 3.3 1.7 194 17.9 19.8 90 Little Goose 8870 4.3 -M * 18.7 -M * Sucker Creek 8880 2.3 4.8 48 17.0 21.0 81 Tie Creek 6870 .0 .0 * 14.5 18.1 80 ----- ----- Basin Index (%) 76 83 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 12.2 15.8 77 ----- ----- Basin Index (%) * 77 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 13.3 17.7 75 North Rapid Creek 6130 .0 .0 * 10.4 15.2 68 ----- ----- Basin Index (%) * 72 UPPER N. PLATTE Arapaho Ridge 10960 25.3 12.9 196 32.7 28.9 113 Blackhall Mtn 9820 31.1 -M * 41.0 -M * Columbine 9160 3.8 .0 * 33.1 31.0 107 Divide Peak 8880 7.9 .6 1317* 35.3 26.9 131 Joe Wright 10120 -M 17.9 * -M 33.5 * Laprele Creek 8375 .0 .0 * 17.9 17.4 103 Med Bow 10500 39.1 -M * 43.2 -M * North French Creek 10130 29.3 25.5 115 37.8 34.4 110 Never Summer 10280 19.6 17.6 111 23.2 -M * Old Battle 10000 36.9 29.1 127 42.2 42.9 98 Rawah 9020 .1 .0 * 25.2 19.2 131 Sage Creek Basin 7850 -M .0 * 18.5 17.7 105 Sand Lake 10050 31.5 24.4 129 37.2 32.5 114 South Brush Creek 8440 .0 .0 * 22.9 20.6 111 Tower 10500 45.2 43.8 103 50.1 48.6 103 Webber Springs 9250 16.3 5.2 313 35.8 32.5 110 Willow Creek Pass 9540 9.4 4.9 192 21.4 17.9 120 Zirkel 9340 -M .8 * 38.9 33.7 115 ----- ----- Basin Index (%) 137* 111 SWEETWATER Deer Park 9700 15.2 7.6 200 27.9 26.7 104 Larsen Creek 9000 .2 1.8 11 19.2 -M * South Pass 9040 11.3 2.0 565 22.2 23.0 97 ----- ----- Basin Index (%) 234 101 LOWER N. PLATTE Casper Mtn. 7900 6.1 .7 871* 23.4 21.0 111 Laprele Creek 8375 .0 .0 * 17.9 17.4 103 Reno Hill 8400 7.0 .0 * 26.3 22.0 120 Windy Peak 7900 .0 .0 * 18.6 15.5 120 ----- ----- Basin Index (%) 1871* 114 LARAMIE RIVER Brooklyn Lake 10240 18.9 11.0 172 32.1 27.8 115 Cinnabar Park 9574 18.2 6.5 280 32.1 29.9 107 Crow Creek 8330 .3 .0 * -M 15.8 * Deadman Hill 10220 18.7 12.5 150 27.0 23.5 115 Rawah 9020 .1 .0 * 25.2 19.2 131 Roach 9700 14.6 6.5 225 31.2 25.2 124 ----- ----- Basin Index (%) 194 118 S. PLATTE Black Mountain 8920 .1 -M * 23.9 -M * Crow Creek 8330 .3 .0 * -M 15.8 * Deadman Hill 10220 18.7 12.5 150 27.0 23.5 115 ----- ----- Basin Index (%) 152* 115* LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 24.4 18.9 129 Divide Peak 8880 7.9 .6 1317* 35.3 26.9 131 Elk River 8700 .1 .0 * 24.4 25.0 98 Little Snake River 8915 16.7 6.9 242 43.4 35.8 121 Old Battle 10000 36.9 29.1 127 42.2 42.9 98 Sage Creek Basin 7850 -M .0 * 18.5 17.7 105 Sandstone RS 8150 -M .0 * 21.2 22.8 93 Whiskey Park 8950 29.7 14.5 205 39.8 34.3 116 ----- ----- Basin Index (%) 179* 111 UPPER GREEN RIVER Big Sandy Opening 9080 2.4 .0 * 18.8 17.4 108 Blind Bull Sum 8650 19.3 16.5 117 20.4 23.8 86 East Rim Divide 7930 .0 .0 * 14.6 14.6 100 Elkhart Park G.S. 9400 1.2 2.7 44 17.4 17.3 101 Gros Ventre Summit 8750 .0 1.6 0 13.9 16.5 84 Gunsight Pass 9820 9.7 6.5 149 19.4 18.2 107 Kendall R.S. 7740 -M .0 * 16.0 17.2 93 Loomis Park 8240 .0 .0 * 20.4 21.0 97 New Fork Lake 8340 .1 .0 * 15.5 14.0 111 Pocket Creek 9360 3.7 -M * 16.3 -M * Snider Basin 8060 .0 .0 * 19.9 17.2 116 Spring Creek Divide 9000 21.2 15.9 133 31.0 28.7 108 Triple Peak 8500 6.2 2.5 248 33.1 30.9 107 ----- ----- Basin Index (%) 132* 102 LOWER GREEN RIVER Blacks Fork Jct 8870 .0 -M * 18.5 -M * Buck Pasture 9700 4.6 -M * 24.7 -M * EF Blacks Fork GS 9360 .0 -M * 20.3 -M * Hams Fork 7840 .0 .0 * 16.9 14.8 114 Hewinta 9519 .4 .0 * 20.2 18.1 112 Hickerson Park 9145 .2 .0 * 20.6 14.0 147 Hole-in-Rock 9150 .0 .0 * 20.6 13.6 151 Indian Creek 9425 16.2 14.2 114 25.9 27.6 94 Kelley R.S. 8180 .0 .0 * 23.1 22.3 104 Spirit Lk 10235 15.5 -M * 28.2 -M * Steel Creek Park 10200 20.2 11.7 173 28.5 21.5 133 ----- ----- Basin Index (%) 143* 118 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 18.7 -M * Bug Lake 7950 .3 .0 * 24.6 24.0 102 Burts Miller Ranch 8000 .0 -M * 9.8 -M * Chalk Creek #1 8993 8.4 10.3 82 29.5 31.5 94 Hayden Fork 9212 .0 .0 * 27.3 26.3 104 Kelley R.S. 8180 .0 .0 * 23.1 22.3 104 Lily Lake 9156 .0 .0 * 21.7 21.9 99 Monte Cristo 8960 14.2 8.7 163 35.1 32.2 109 Salt River Summit 7760 .0 .0 * 21.8 20.4 107 ----- ----- Basin Index (%) 121* 103 ----------------------------------------------------------------------------- -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.