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 SUNDAY: JUNE 3 , 2018 ------------------------------------------------------------------------------ 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 * 28.5 25.9 110 Black Bear 8170 31.0 22.3 139 51.7 46.6 111 Blind Bull Sum 8650 -M 9.9 * 27.1 24.5 111 Cottonwood Creek 7670 -M .0 * 34.7 31.7 109 East Rim Divide 7930 .0 .0 * 17.2 15.2 113 Grand Targhee 9260 33.4 39.1 85 44.7 38.8 115 Granite Creek 6770 .0 .0 * 28.5 24.3 117 Grassy Lake 7265 .1 2.2 5* 44.6 44.0 101 Gros Ventre Summit 8750 -M .0 * 21.5 17.2 125 Gunsight Pass 9820 3.7 1.7 218 23.4 18.8 124 Lewis Lake Divide 7850 10.3 9.5 108 49.1 43.0 114 Phillips Bench 8200 5.6 7.9 71 37.3 34.4 108 Salt River Summit 7640 .0 .0 * 16.6 21.0 79 Snake River Station 6920 .0 .0 * 30.2 28.0 108 Spring Creek Divide 9000 9.0 10.1 89 30.7 29.3 105 Thumb Divide 7980 .0 .0 * 24.6 24.0 102 Togwotee Pass 9580 21.0 18.3 115 42.0 31.2 135 Two Ocean Plateau 9240 24.8 23.6 105 38.3 34.6 111 Willow Creek 8080 .0 2.3 0* 46.4 42.8 108 Younts Peak 8350 -M 1.8 * -M 20.9 * ----- ----- Basin Index (%) 101* 111 MADISON-GALLATIN Black Bear 8170 31.0 22.3 139 51.7 46.6 111 Canyon 7870 .0 .0 * 24.7 21.1 117 Madison Plateau 7750 6.2 4.3 144 36.8 33.5 110 West Yellowstone 6700 .0 .0 * 23.2 18.8 123 Whiskey Creek 6800 .0 .0 * 28.2 26.0 108 ----- ----- Basin Index (%) 140* 113 YELLOWSTONE Beartooth Lake 9360 34.3 15.9 216 41.9 25.4 165 Burnt Mtn 5880 .0 .0 * 23.5 21.0 112 Canyon 7870 .0 .0 * 24.7 21.1 117 Cole Creek 7850 .0 7.2 0 22.8 21.6 106 Evening Star 9200 26.1 16.4 159 53.4 35.2 152 Fisher Creek 9100 39.6 27.2 146 55.5 40.4 137 Northeast Entrance 7350 .0 .0 * 23.3 16.9 138 Parker Peak 9400 15.9 12.3 129 36.9 24.0 154 Sylvan Lake 8420 .2 4.3 5 35.8 29.5 121 Thumb Divide 7980 .0 .0 * 24.6 24.0 102 Two Ocean Plateau 9240 24.8 23.6 105 38.3 34.6 111 White Mill 8700 24.6 15.5 159 38.1 30.7 124 Wolverine 7650 .0 .0 * 26.1 16.6 157 ----- ----- Basin Index (%) 135 130 WIND RIVER Burroughs Creek 8750 .0 -M * 25.5 -M * Castle Creek 8400 .0 -M * 15.7 -M * Cold Springs 9630 .0 .0 * 15.7 15.5 101 Deer Park 9700 .0 1.5 0* 22.6 27.2 83 Hobbs Park 10100 .8 4.8 17 22.2 20.8 107 Kirwin 9550 .0 .9 0* 25.2 17.1 147 Little Warm 9370 .0 .0 * 23.0 18.6 124 Owl Creek 8975 -M .0 * 13.1 10.9 120 South Pass 9040 .1 .2 50* 14.8 23.8 62 St. Lawrence Alt 8620 .0 .0 * 13.9 14.7 95 Togwotee Pass 9580 21.0 18.3 115 42.0 31.2 135 Townsend Creek 8700 -M .0 * 15.7 18.4 85 ----- ----- Basin Index (%) 85* 105 BIGHORN BASIN Bald Mtn. 9380 4.5 12.6 36 24.3 23.7 103 Bear Trap Meadow 8200 .0 .0 * 14.9 14.1 106 Bone Springs Div 9350 .2 6.6 3 23.0 22.4 103 Grave Springs 8550 .0 .0 * 11.2 16.3 69 Kirwin 9550 .0 .9 0* 25.2 17.1 147 Marquette 8760 .0 -M * 18.6 -M * Middle Powder 7760 .0 .0 * 10.9 17.5 62 Owl Creek 8975 -M .0 * 13.1 10.9 120 Powder River Pass 9480 .0 .0 * 21.9 19.0 115 Shell Creek 9580 5.8 7.5 77 22.7 20.1 113 Timber Creek 7950 .0 .0 * 8.1 13.8 59 ----- ----- Basin Index (%) 38* 100 SHOSHONE RIVER Blackwater 9780 25.4 18.0 141 39.6 27.6 143 Evening Star 9200 26.1 16.4 159 53.4 35.2 152 Marquette 8760 .0 -M * 18.6 -M * Sylvan Road 7120 .1 .0 * 28.0 21.5 130 Younts Peak 8350 -M 1.8 * -M 20.9 * ----- ----- Basin Index (%) 150* 144 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 14.9 14.1 106 Cloud Peak Reservoir 9860 -M 3.1 * 23.8 21.4 111 Grave Springs 8550 .0 .0 * 11.2 16.3 69 Hansen Sawmill 8360 .0 .0 * 17.6 14.3 123 Middle Powder 7760 .0 .0 * 10.9 17.5 62 Powder River Pass 9480 .0 .0 * 21.9 19.0 115 Soldier Park 8720 .0 -M * 17.0 -M * ----- ----- Basin Index (%) * 98 TONGUE RIVER Big Goose 7990 .0 .0 * 15.6 18.3 85 Bone Springs Div 9350 .2 6.6 3 23.0 22.4 103 Burgess Junction 7880 .0 .0 * 18.2 18.2 100 Dome Lake 8880 .1 .0 * 22.0 20.4 108 Little Goose 8870 .0 -M * 19.6 -M * Sucker Creek 8880 .0 .0 * 19.1 21.7 88 Tie Creek 6870 .0 .0 * 16.7 18.9 88 ----- ----- Basin Index (%) 5* 96 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 15.8 17.1 92 ----- ----- Basin Index (%) * 92 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 16.8 18.8 89 North Rapid Creek 6130 .0 .0 * 15.2 16.4 93 ----- ----- Basin Index (%) * 91 UPPER N. PLATTE Arapaho Ridge 10960 .3 6.2 5 25.9 29.5 88 Blackhall Mtn 9820 .0 -M * 31.5 -M * Columbine 9160 -M .0 * 30.1 31.6 95 Divide Peak 8880 .0 .0 * 21.8 27.6 79 Joe Wright 10120 2.5 13.0 19 35.8 34.6 103 Laprele Creek 8375 .0 .0 * 12.8 18.2 70 Med Bow 10500 18.2 -M * 40.7 -M * North French Creek 10130 7.4 18.8 39 33.9 35.2 96 Never Summer 10280 6.0 14.7 41 21.5 -M * Old Battle 10000 6.2 22.0 28 28.2 43.7 65 Rawah 9020 .1 .0 * 19.0 19.9 95 Sage Creek Basin 7850 -M .0 * 12.4 18.0 69 Sand Lake 10050 11.5 19.6 59 29.2 33.4 87 South Brush Creek 8440 .0 .0 * 15.2 21.2 72 Tower 10500 14.8 35.0 42 43.1 49.5 87 Webber Springs 9250 .0 .0 * 25.0 33.2 75 Willow Creek Pass 9540 .1 .0 * 17.3 18.7 93 Zirkel 9340 .0 .0 * 36.1 34.4 105 ----- ----- Basin Index (%) 38* 86 SWEETWATER Deer Park 9700 .0 1.5 0* 22.6 27.2 83 Larsen Creek 9000 .0 .0 * 16.6 -M * South Pass 9040 .1 .2 50* 14.8 23.8 62 ----- ----- Basin Index (%) 6* 73 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * 12.3 21.9 56 Laprele Creek 8375 .0 .0 * 12.8 18.2 70 Reno Hill 8400 .0 .0 * 17.8 22.9 78 Windy Peak 7900 .1 .0 * 14.6 16.3 90 ----- ----- Basin Index (%) * 73 LARAMIE RIVER Brooklyn Lake 10240 .0 3.2 0 30.9 28.5 108 Cinnabar Park 9574 .0 .0 * 28.6 30.6 93 Crow Creek 8330 .0 .0 * 15.7 16.4 96 Deadman Hill 10220 .2 5.7 4 24.3 24.2 100 Rawah 9020 .1 .0 * 19.0 19.9 95 Roach 9700 .0 1.0 0* 21.5 25.9 83 ----- ----- Basin Index (%) 3* 96 S. PLATTE Black Mountain 8920 -M -M * 17.3 -M * Crow Creek 8330 .0 .0 * 15.7 16.4 96 Deadman Hill 10220 .2 5.7 4 24.3 24.2 100 ----- ----- Basin Index (%) 4* 99 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 13.9 19.3 72 Divide Peak 8880 .0 .0 * 21.8 27.6 79 Elk River 8700 .0 .0 * 19.9 25.6 78 Little Snake River 8915 .0 1.0 0* 32.1 36.3 88 Old Battle 10000 6.2 22.0 28 28.2 43.7 65 Sage Creek Basin 7850 -M .0 * 12.4 18.0 69 Sandstone RS 8150 .0 .0 * 11.8 23.4 50 Whiskey Park 8950 .0 4.1 0 29.8 35.1 85 ----- ----- Basin Index (%) 23* 74 UPPER GREEN RIVER Big Sandy Opening 9080 -M .0 * 18.1 18.0 101 Blind Bull Sum 8650 -M 9.9 * 27.1 24.5 111 East Rim Divide 7930 .0 .0 * 17.2 15.2 113 Elkhart Park G.S. 9400 .0 .0 * 17.2 18.1 95 Gros Ventre Summit 8750 -M .0 * 21.5 17.2 125 Gunsight Pass 9820 3.7 1.7 218 23.4 18.8 124 Kendall R.S. 7740 .0 .0 * 21.3 17.8 120 Loomis Park 8240 .3 .0 * -M 21.6 * New Fork Lake 8340 .0 .0 * 16.8 14.7 114 Pocket Creek 9360 -M -M * 13.0 -M * Snider Basin 8060 .0 .0 * 18.5 17.6 105 Spring Creek Divide 9000 9.0 10.1 89 30.7 29.3 105 Triple Peak 8500 -M .0 * 39.1 31.7 123 ----- ----- Basin Index (%) 110* 113 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 12.5 -M * Buck Pasture 9632 .0 -M * 18.9 -M * EF Blacks Fork GS 9360 .0 -M * 13.6 -M * Hams Fork 7840 .0 .0 * 14.7 15.4 95 Hewinta 9500 .0 .0 * 15.6 18.8 83 Hickerson Park 9122 .3 .0 * 13.1 14.5 90 Hole-in-Rock 9168 .0 .0 * 13.5 14.1 96 Indian Creek 9425 .1 9.1 1 21.8 28.2 77 Kelley R.S. 8180 .0 .0 * 19.5 23.0 85 Spirit Lk 10235 .3 -M * 16.6 -M * Steel Creek Park 10158 .0 8.7 0 19.5 22.3 87 ----- ----- Basin Index (%) 2* 86 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 14.0 -M * Bug Lake 7987 .0 .0 * 20.6 24.6 84 Burts Miller Ranch 8000 .0 -M * 8.1 -M * Chalk Creek #1 9171 .0 4.3 0 20.1 32.2 62 Hayden Fork 9130 .1 .0 * 20.8 26.9 77 Kelley R.S. 8180 .0 .0 * 19.5 23.0 85 Lily Lake 9133 .0 .0 * 15.2 22.5 68 Monte Cristo 8932 .4 2.6 15* 27.2 33.0 82 Salt River Summit 7640 .0 .0 * 16.6 21.0 79 ----- ----- Basin Index (%) 7* 76 ----------------------------------------------------------------------------- -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.