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 19 , 2016 ------------------------------------------------------------------------------ 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 * 21.5 24.4 88 Black Bear 8170 19.8 34.3 58 38.4 44.6 86 Blind Bull Sum 8650 21.1 20.5 103 19.2 23.1 83 Cottonwood Creek 7670 -M 7.3 * -M 29.9 * East Rim Divide 7930 -M 1.0 * 13.8 14.1 98 Grand Targhee 9260 -M 42.8 * -M 36.8 * Granite Creek 6770 .0 .0 * 21.0 22.9 92 Grassy Lake 7265 6.2 18.5 34 38.1 41.8 91 Gros Ventre Summit 8750 .6 6.3 10 13.1 16.0 82 Gunsight Pass 9820 9.9 10.9 91 17.8 17.6 101 Lewis Lake Divide 7850 6.0 23.1 26 34.1 40.9 83 Phillips Bench 8200 8.7 19.9 44 29.7 32.8 91 Salt River Summit 7760 .0 .0 * 19.9 19.9 100 Snake River Station 6920 .0 .0 * 24.1 26.4 91 Spring Creek Divide 9000 20.8 21.0 99 28.6 28.0 102 Thumb Divide 7980 .1 2.0 5 16.8 22.7 74 Togwotee Pass 9580 18.2 23.2 78 29.0 29.6 98 Two Ocean Plateau 9240 -M 28.5 * -M 32.7 * Willow Creek 8380 -M 17.5 * -M 40.7 * Younts Peak 8350 .0 12.1 0 16.3 19.4 84 ----- ----- Basin Index (%) 58 90 MADISON-GALLATIN Black Bear 8170 19.8 34.3 58 38.4 44.6 86 Canyon 7870 .0 2.8 0 14.8 19.8 75 Madison Plateau 7750 5.8 14.8 39 25.1 31.5 80 West Yellowstone 6700 .0 .0 * 14.9 17.5 85 Whiskey Creek 6800 .0 6.3 0 18.9 24.2 78 ----- ----- Basin Index (%) 44 81 YELLOWSTONE Beartooth Lake 9360 15.1 21.9 69 20.4 24.1 85 Burnt Mtn 5880 .0 .0 * 17.1 19.0 90 Canyon 7870 .0 2.8 0 14.8 19.8 75 Cole Creek 7850 11.0 16.5 67 18.5 19.4 95 Evening Star 9200 19.0 24.1 79 32.1 33.2 97 Fisher Creek 9100 22.3 33.0 68 27.9 38.2 73 Northeast Entrance 7350 .0 .0 * 12.6 15.4 82 Parker Peak 9400 12.0 20.2 59 24.1 22.3 108 Sylvan Lake 8420 1.9 15.5 12 26.2 27.5 95 Thumb Divide 7980 .1 2.0 5 16.8 22.7 74 Two Ocean Plateau 9240 -M 28.5 * -M 32.7 * White Mill 8700 13.8 22.8 61 23.4 28.8 81 Wolverine 7650 .0 .0 * 13.8 15.4 90 ----- ----- Basin Index (%) 60 87 WIND RIVER Burroughs Creek 8750 .0 -M * 17.5 -M * Castle Creek 8400 .0 -M * 11.0 -M * Cold Springs 9630 6.0 .0 * 17.4 14.3 122 Deer Park 9700 17.8 11.1 160 27.1 25.9 105 Hobbs Park 10100 22.8 13.6 168 27.0 19.2 141 Kirwin 9550 10.1 8.8 115 19.3 15.8 122 Little Warm 9370 2.2 3.4 65 14.8 17.3 86 Owl Creek 8975 .0 .0 * 12.9 9.5 136 South Pass 9040 14.7 7.7 191 22.0 22.4 98 St. Lawrence Alt 8620 2.6 .0 * 19.1 13.4 143 Togwotee Pass 9580 18.2 23.2 78 29.0 29.6 98 Townsend Creek 8700 10.8 .0 * 24.0 17.0 141 ----- ----- Basin Index (%) 155 115 BIGHORN BASIN Bald Mtn. 9380 14.3 19.6 73 16.7 22.0 76 Bear Trap Meadow 8200 .0 .0 * 11.9 12.5 95 Bone Springs Div 9350 10.6 14.6 73 15.5 20.7 75 Grave Springs 8550 5.1 3.5 146 12.0 14.9 81 Kirwin 9550 10.1 8.8 115 19.3 15.8 122 Marquette 8760 3.7 -M * 16.3 -M * Middle Powder 7760 7.3 6.2 118 13.9 16.2 86 Owl Creek 8975 .0 .0 * 12.9 9.5 136 Powder River Pass 9480 2.1 6.0 35 12.4 17.2 72 Shell Creek 9580 11.9 15.6 76 14.3 18.4 78 Timber Creek 7950 .0 .0 * 17.8 12.1 147 ----- ----- Basin Index (%) 83 92 SHOSHONE RIVER Blackwater 9780 21.5 24.5 88 28.7 25.8 111 Evening Star 9200 19.0 24.1 79 32.1 33.2 97 Marquette 8760 3.7 -M * 16.3 -M * Sylvan Road 7120 .0 .0 * 17.0 20.2 84 Younts Peak 8350 .0 12.1 0 16.3 19.4 84 ----- ----- Basin Index (%) 67 95 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 11.9 12.5 95 Cloud Peak Reservoir 9860 12.1 15.2 80 19.4 19.5 99 Grave Springs 8550 5.1 3.5 146 12.0 14.9 81 Hansen Sawmill 8360 .0 .0 * 13.2 12.8 103 Middle Powder 7760 7.3 6.2 118 13.9 16.2 86 Powder River Pass 9480 2.1 6.0 35 12.4 17.2 72 Soldier Park 8720 .0 -M * 13.0 -M * ----- ----- Basin Index (%) 86 89 TONGUE RIVER Big Goose 7990 5.8 5.7 102 15.2 17.1 89 Bone Springs Div 9350 10.6 14.6 73 15.5 20.7 75 Burgess Junction 7880 7.5 8.7 86 14.6 16.9 86 Dome Lake 8880 7.7 7.0 110 16.6 19.0 87 Little Goose 8870 8.6 -M * 17.9 -M * Sucker Creek 8880 7.6 9.2 83 16.9 20.1 84 Tie Creek 6870 .0 .0 * 13.8 17.2 80 ----- ----- Basin Index (%) 87 83 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 12.1 14.8 82 ----- ----- Basin Index (%) * 82 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 12.6 16.6 76 North Rapid Creek 6130 .0 .0 * 9.9 14.4 69 ----- ----- Basin Index (%) * 73 UPPER N. PLATTE Arapaho Ridge 10960 28.3 19.0 149 32.7 28.4 115 Blackhall Mtn 9820 35.6 -M * 41.0 -M * Columbine 9160 11.3 4.0 282 33.3 30.5 109 Divide Peak 8880 15.9 6.7 237 35.2 26.4 133 Joe Wright 10120 -M 21.6 * -M 32.7 * Laprele Creek 8375 .0 .0 * 17.8 16.8 106 Med Bow 10500 41.3 -M * 43.0 -M * North French Creek 10130 32.5 30.2 108 37.7 33.6 112 Never Summer 10280 23.1 20.8 111 23.1 -M * Old Battle 10000 39.6 32.9 120 41.9 42.0 100 Rawah 9020 5.8 .6 967* 25.3 18.9 134 Sage Creek Basin 7850 -M .0 * 18.3 17.3 106 Sand Lake 10050 34.4 28.3 122 37.0 31.8 116 South Brush Creek 8440 .5 .4 125* 22.7 20.0 114 Tower 10500 48.7 48.2 101 50.0 47.7 105 Webber Springs 9250 21.0 13.0 162 35.6 32.0 111 Willow Creek Pass 9540 15.1 9.8 154 21.3 17.3 123 Zirkel 9340 -M 11.4 * 38.8 33.3 117 ----- ----- Basin Index (%) 129 113 SWEETWATER Deer Park 9700 17.8 11.1 160 27.1 25.9 105 Larsen Creek 9000 .1 3.9 3 18.2 -M * South Pass 9040 14.7 7.7 191 22.0 22.4 98 ----- ----- Basin Index (%) 144 102 LOWER N. PLATTE Casper Mtn. 7900 13.0 5.4 241 23.3 20.3 115 Laprele Creek 8375 .0 .0 * 17.8 16.8 106 Reno Hill 8400 12.5 4.6 272 26.2 21.3 123 Windy Peak 7900 1.2 .0 * 18.5 14.7 126 ----- ----- Basin Index (%) 267 117 LARAMIE RIVER Brooklyn Lake 10240 23.1 17.2 134 32.1 27.1 118 Cinnabar Park 9574 21.5 13.1 164 32.1 29.5 109 Crow Creek 8330 .3 .0 * -M 15.1 * Deadman Hill 10220 22.5 17.1 132 27.0 22.9 118 Rawah 9020 5.8 .6 967* 25.3 18.9 134 Roach 9700 20.3 12.1 168 31.2 24.5 127 ----- ----- Basin Index (%) 156 120 S. PLATTE Black Mountain 8920 7.0 -M * 23.9 -M * Crow Creek 8330 .3 .0 * -M 15.1 * Deadman Hill 10220 22.5 17.1 132 27.0 22.9 118 ----- ----- Basin Index (%) 133* 118* LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 24.5 18.6 132 Divide Peak 8880 15.9 6.7 237 35.2 26.4 133 Elk River 8700 6.9 .0 * 24.5 24.5 100 Little Snake River 8915 22.2 14.4 154 43.3 35.0 124 Old Battle 10000 39.6 32.9 120 41.9 42.0 100 Sage Creek Basin 7850 -M .0 * 18.3 17.3 106 Sandstone RS 8150 .6 .0 * 20.7 22.4 92 Whiskey Park 8950 35.0 22.6 155 39.6 33.8 117 ----- ----- Basin Index (%) 157 113 UPPER GREEN RIVER Big Sandy Opening 9080 4.1 4.2 98 17.0 16.8 101 Blind Bull Sum 8650 21.1 20.5 103 19.2 23.1 83 East Rim Divide 7930 -M 1.0 * 13.8 14.1 98 Elkhart Park G.S. 9400 2.3 6.2 37 15.5 16.7 93 Gros Ventre Summit 8750 .6 6.3 10 13.1 16.0 82 Gunsight Pass 9820 9.9 10.9 91 17.8 17.6 101 Kendall R.S. 7740 -M .0 * 15.0 16.7 90 Loomis Park 8240 .1 3.3 3 19.2 20.5 94 New Fork Lake 8340 .1 .0 * 14.6 13.5 108 Pocket Creek 9360 3.8 -M * 14.3 -M * Snider Basin 8060 .0 .8 0* 18.0 16.8 107 Spring Creek Divide 9000 20.8 21.0 99 28.6 28.0 102 Triple Peak 8500 8.5 9.5 89 31.7 30.1 105 ----- ----- Basin Index (%) 82 97 LOWER GREEN RIVER Blacks Fork Jct 8870 .9 -M * 18.0 -M * Buck Pasture 9700 7.6 -M * 24.0 -M * EF Blacks Fork GS 9360 2.3 -M * 19.5 -M * Hams Fork 7840 .0 .0 * 15.3 14.3 107 Hewinta 9519 3.7 .0 * 19.8 17.7 112 Hickerson Park 9145 3.9 .0 * 20.3 13.4 151 Hole-in-Rock 9150 .0 .0 * 20.0 13.0 154 Indian Creek 9425 15.5 19.3 80 23.7 27.0 88 Kelley R.S. 8180 .0 3.5 0 20.9 21.7 96 Spirit Lk 10235 19.1 -M * 27.6 -M * Steel Creek Park 10200 21.6 15.2 142 27.9 21.0 133 ----- ----- Basin Index (%) 118* 115 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 18.0 -M * Bug Lake 7950 1.4 6.1 23 22.9 23.4 98 Burts Miller Ranch 8000 .0 -M * 9.4 -M * Chalk Creek #1 8993 12.1 16.4 74 29.0 30.8 94 Hayden Fork 9212 .1 .0 * 26.1 25.7 102 Kelley R.S. 8180 .0 3.5 0 20.9 21.7 96 Lily Lake 9156 3.2 .0 * 20.8 21.3 98 Monte Cristo 8960 14.8 15.8 94 32.8 31.5 104 Salt River Summit 7760 .0 .0 * 19.9 19.9 100 ----- ----- Basin Index (%) 76* 99 ----------------------------------------------------------------------------- -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.