Supercell over Laramie
WRDS/SCO may be working remotely so there could be a slight delay returning phone calls. Please email wrds@uwyo.edu if you are in need of information and we will respond as soon as possible

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 MONDAY: MAY 9 , 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 5.0 0 21.5 23.6 91 Black Bear 8170 25.7 36.8 70 37.3 42.9 87 Blind Bull Sum 8650 -M 22.5 * -M 22.1 * Cottonwood Creek 7670 12.4 13.1 95 31.3 28.6 109 East Rim Divide 7930 .0 6.2 0 13.6 13.4 101 Grand Targhee 9260 38.7 46.4 83 34.9 35.9 97 Granite Creek 6770 .0 5.9 0 20.6 22.0 94 Grassy Lake 7265 13.2 26.4 50 37.0 40.4 92 Gros Ventre Summit 8750 6.4 9.8 65 13.0 15.2 86 Gunsight Pass 9820 12.5 11.9 105 17.6 16.8 105 Lewis Lake Divide 7850 -M 29.5 * -M 39.6 * Phillips Bench 8200 14.0 23.3 60 29.0 31.7 91 Salt River Summit 7760 -M 5.1 * -M 19.0 * Snake River Station 6920 .0 3.1 0 23.5 25.5 92 Spring Creek Divide 9000 24.1 23.8 101 27.6 27.0 102 Thumb Divide 7980 .0 8.9 0 16.0 21.7 74 Togwotee Pass 9580 20.3 25.3 80 27.9 28.4 98 Two Ocean Plateau 9240 21.7 29.7 73 26.2 31.1 84 Willow Creek 8380 15.9 21.3 75 38.1 39.0 98 Younts Peak 8350 .0 15.5 0 15.9 18.4 86 ----- ----- Basin Index (%) 66 93 MADISON-GALLATIN Black Bear 8170 25.7 36.8 70 37.3 42.9 87 Canyon 7870 .0 7.7 0 14.7 18.8 78 Madison Plateau 7750 11.4 20.4 56 24.3 29.9 81 West Yellowstone 6700 .1 .0 * 14.5 16.6 87 Whiskey Creek 6800 4.0 11.1 36 18.2 23.0 79 ----- ----- Basin Index (%) 54 83 YELLOWSTONE Beartooth Lake 9360 16.6 23.0 72 19.6 23.0 85 Burnt Mtn 5880 .0 .0 * 13.8 17.0 81 Canyon 7870 .0 7.7 0 14.7 18.8 78 Cole Creek 7850 9.8 17.1 57 15.3 17.8 86 Evening Star 9200 20.4 25.3 81 31.2 31.7 98 Fisher Creek 9100 24.7 34.0 73 27.3 36.5 75 Northeast Entrance 7350 .0 1.0 0 12.3 14.5 85 Parker Peak 9400 15.2 21.8 70 23.0 21.1 109 Sylvan Lake 8420 7.2 18.1 40 25.3 26.2 97 Thumb Divide 7980 .0 8.9 0 16.0 21.7 74 Two Ocean Plateau 9240 21.7 29.7 73 26.2 31.1 84 White Mill 8700 16.9 24.6 69 22.8 27.4 83 Wolverine 7650 .0 .4 0* 13.1 14.5 90 ----- ----- Basin Index (%) 63 86 WIND RIVER Burroughs Creek 8750 3.6 -M * 16.6 -M * Castle Creek 8400 .0 -M * 10.3 -M * Cold Springs 9630 8.1 1.7 476 16.2 13.3 122 Deer Park 9700 21.0 14.5 145 26.5 24.4 109 Hobbs Park 10100 23.9 15.9 150 26.2 17.7 148 Kirwin 9550 13.3 10.9 122 18.6 14.7 127 Little Warm 9370 6.7 6.7 100 14.5 16.1 90 Owl Creek 8975 1.6 .6 267 11.6 8.5 136 South Pass 9040 18.1 12.2 148 21.4 21.2 101 St. Lawrence Alt 8620 5.4 1.4 386 17.9 12.3 146 Togwotee Pass 9580 20.3 25.3 80 27.9 28.4 98 Townsend Creek 8700 13.6 4.4 309 23.2 15.7 148 ----- ----- Basin Index (%) 141 118 BIGHORN BASIN Bald Mtn. 9380 13.7 20.5 67 15.1 20.9 72 Bear Trap Meadow 8200 .0 .2 0* 10.2 11.5 89 Bone Springs Div 9350 11.5 16.5 70 14.2 19.5 73 Grave Springs 8550 6.5 7.9 82 10.7 14.0 76 Kirwin 9550 13.3 10.9 122 18.6 14.7 127 Marquette 8760 5.0 -M * 14.9 -M * Middle Powder 7760 8.4 11.0 76 12.5 15.2 82 Owl Creek 8975 1.6 .6 267 11.6 8.5 136 Powder River Pass 9480 4.1 9.0 46 11.5 16.1 71 Shell Creek 9580 12.0 16.7 72 13.3 17.5 76 Timber Creek 7950 1.3 1.7 76 16.2 10.8 150 ----- ----- Basin Index (%) 76 90 SHOSHONE RIVER Blackwater 9780 21.4 25.0 86 27.5 24.4 113 Evening Star 9200 20.4 25.3 81 31.2 31.7 98 Marquette 8760 5.0 -M * 14.9 -M * Sylvan Road 7120 .0 1.9 0 16.1 19.2 84 Younts Peak 8350 .0 15.5 0 15.9 18.4 86 ----- ----- Basin Index (%) 62 97 POWDER RIVER Bear Trap Meadow 8200 .0 .2 0* 10.2 11.5 89 Cloud Peak Reservoir 9860 12.4 16.7 74 17.8 18.0 99 Grave Springs 8550 6.5 7.9 82 10.7 14.0 76 Hansen Sawmill 8360 .0 1.4 0 11.5 11.8 97 Middle Powder 7760 8.4 11.0 76 12.5 15.2 82 Powder River Pass 9480 4.1 9.0 46 11.5 16.1 71 Soldier Park 8720 .0 -M * 11.4 -M * ----- ----- Basin Index (%) 68 86 TONGUE RIVER Big Goose 7990 7.3 10.4 70 14.0 15.6 90 Bone Springs Div 9350 11.5 16.5 70 14.2 19.5 73 Burgess Junction 7880 9.0 11.5 78 13.6 15.9 86 Dome Lake 8880 8.7 11.2 78 15.1 17.8 85 Little Goose 8870 9.5 -M * 16.6 -M * Sucker Creek 8880 8.8 12.5 70 15.5 18.8 82 Tie Creek 6870 .0 1.7 0 12.4 15.7 79 ----- ----- Basin Index (%) 71 82 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 11.4 13.4 85 ----- ----- Basin Index (%) * 85 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 12.2 15.3 80 North Rapid Creek 6130 .0 .0 * 9.7 13.2 73 ----- ----- Basin Index (%) * 77 UPPER N. PLATTE Arapaho Ridge 10960 28.0 22.4 125 30.7 27.3 112 Blackhall Mtn 9820 36.8 -M * 39.0 -M * Columbine 9160 17.5 13.5 130 30.7 29.5 104 Divide Peak 8880 20.3 14.9 136 33.6 25.4 132 Joe Wright 10120 -M 23.0 * -M 31.2 * Laprele Creek 8375 5.7 3.4 168 17.4 16.0 109 Med Bow 10500 41.1 -M * 41.1 -M * North French Creek 10130 33.5 32.8 102 35.9 32.2 111 Never Summer 10280 23.3 22.1 105 21.9 -M * Old Battle 10000 -M 36.6 * 38.2 40.7 94 Rawah 9020 10.5 3.0 350 24.0 18.0 133 Sage Creek Basin 7850 8.0 .0 * 17.9 16.8 107 Sand Lake 10050 35.4 31.8 111 35.6 30.3 117 South Brush Creek 8440 7.0 5.8 121 21.0 18.9 111 Tower 10500 47.7 51.4 93 46.5 46.2 101 Webber Springs 9250 23.2 19.8 117 33.5 31.0 108 Willow Creek Pass 9540 17.8 13.7 130 19.9 16.4 121 Zirkel 9340 -M 19.9 * 37.1 32.2 115 ----- ----- Basin Index (%) 118 111 SWEETWATER Deer Park 9700 21.0 14.5 145 26.5 24.4 109 Larsen Creek 9000 3.2 6.8 47 17.8 -M * South Pass 9040 18.1 12.2 148 21.4 21.2 101 ----- ----- Basin Index (%) 126 105 LOWER N. PLATTE Casper Mtn. 7900 17.1 11.7 146 22.4 19.3 116 Laprele Creek 8375 5.7 3.4 168 17.4 16.0 109 Reno Hill 8400 16.4 11.0 149 25.2 20.0 126 Windy Peak 7900 6.8 1.2 567 18.0 13.8 130 ----- ----- Basin Index (%) 168 120 LARAMIE RIVER Brooklyn Lake 10240 26.2 21.7 121 30.8 25.8 119 Cinnabar Park 9574 23.3 17.8 131 30.6 28.2 109 Crow Creek 8330 -M .0 * -M 14.2 * Deadman Hill 10220 23.9 18.6 128 25.9 21.6 120 Rawah 9020 10.5 3.0 350 24.0 18.0 133 Roach 9700 22.6 16.2 140 29.4 23.2 127 ----- ----- Basin Index (%) 138 120 S. PLATTE Black Mountain 8920 12.2 -M * 23.0 -M * Crow Creek 8330 -M .0 * -M 14.2 * Deadman Hill 10220 23.9 18.6 128 25.9 21.6 120 ----- ----- Basin Index (%) 128* 120* LITTLE SNAKE RIVER Battle Mountain 7440 -M .0 * -M 17.8 * Divide Peak 8880 20.3 14.9 136 33.6 25.4 132 Elk River 8700 11.9 8.6 138 23.4 23.6 99 Little Snake River 8915 -M 20.7 * 41.5 34.3 121 Old Battle 10000 -M 36.6 * 38.2 40.7 94 Sage Creek Basin 7850 8.0 .0 * 17.9 16.8 107 Sandstone RS 8150 6.9 2.2 314 -M 21.6 * Whiskey Park 8950 31.8 26.9 118 37.6 32.8 115 ----- ----- Basin Index (%) 150 111 UPPER GREEN RIVER Big Sandy Opening 9080 10.4 8.6 121 16.6 16.0 104 Blind Bull Sum 8650 -M 22.5 * -M 22.1 * East Rim Divide 7930 .0 6.2 0 13.6 13.4 101 Elkhart Park G.S. 9400 7.3 9.7 75 14.9 15.8 94 Gros Ventre Summit 8750 6.4 9.8 65 13.0 15.2 86 Gunsight Pass 9820 12.5 11.9 105 17.6 16.8 105 Kendall R.S. 7740 .0 .0 * 14.8 16.1 92 Loomis Park 8240 3.8 7.6 50 19.1 19.7 97 New Fork Lake 8340 .3 3.0 10 14.0 12.7 110 Pocket Creek 9360 8.9 -M * 13.7 -M * Snider Basin 8060 .1 7.5 1 17.5 16.1 109 Spring Creek Divide 9000 24.1 23.8 101 27.6 27.0 102 Triple Peak 8500 14.6 15.1 97 30.7 29.0 106 ----- ----- Basin Index (%) 77 101 LOWER GREEN RIVER Blacks Fork Jct 8870 -M -M * -M -M * Buck Pasture 9700 -M -M * -M -M * EF Blacks Fork GS 9360 -M -M * -M -M * Hams Fork 7840 .0 .2 0* 14.3 13.7 104 Hewinta 9519 -M 2.4 * -M 17.0 * Hickerson Park 9145 9.2 .5 1840* 18.6 12.7 146 Hole-in-Rock 9150 3.0 .3 1000* 17.6 12.2 144 Indian Creek 9425 19.0 21.0 90 22.6 25.9 87 Kelley R.S. 8180 5.9 8.6 69 19.9 20.9 95 Spirit Lk 10235 20.8 -M * 25.6 -M * Steel Creek Park 10200 21.4 17.8 120 25.4 20.0 127 ----- ----- Basin Index (%) 121* 112 UPPER BEAR RIVER Bear River RS 8777 .9 -M * 16.2 -M * Bug Lake 7950 8.4 12.4 68 22.5 22.4 100 Burts Miller Ranch 8000 .3 -M * 8.4 -M * Chalk Creek #1 8993 15.6 21.9 71 27.0 29.6 91 Hayden Fork 9212 3.9 6.3 62 24.3 24.7 98 Kelley R.S. 8180 5.9 8.6 69 19.9 20.9 95 Lily Lake 9156 8.6 6.2 139 18.9 20.4 93 Monte Cristo 8960 22.0 22.0 100 32.2 30.4 106 Salt River Summit 7760 -M 5.1 * -M 19.0 * ----- ----- Basin Index (%) 83 98 ----------------------------------------------------------------------------- -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.