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 WEDNESDAY: NOVEMBER 30 , 2016 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 1.4 3.9 36 8.9 5.9 151 Black Bear 8170 4.8 8.8 55 14.7 10.4 141 Blind Bull Sum 8650 3.7 4.9 76 6.7 5.6 120 Cottonwood Creek 7670 3.1 4.2 74 10.1 6.8 149 East Rim Divide 7930 .8 1.9 42 4.4 3.4 129 Grand Targhee 9260 14.0 9.8 143 15.2 9.7 157 Granite Creek 6770 1.2 2.5 48 7.7 5.3 145 Grassy Lake 7265 2.7 6.5 42 14.5 9.7 149 Gros Ventre Summit 8750 1.6 3.7 43 6.2 4.1 151 Gunsight Pass 9820 1.5 3.2 47 6.2 4.0 155 Lewis Lake Divide 7850 1.1 7.2 15 12.6 9.6 131 Phillips Bench 8200 1.8 5.5 33 11.3 7.2 157 Salt River Summit 7760 .8 2.0 40 6.6 4.4 150 Snake River Station 6920 1.7 3.3 52 10.1 6.5 155 Spring Creek Divide 9000 3.6 5.0 72 9.4 6.4 147 Thumb Divide 7980 1.0 3.1 32 7.5 5.3 142 Togwotee Pass 9580 5.1 7.0 73 8.7 7.1 123 Two Ocean Plateau 9240 7.8 8.4 93 10.7 7.9 135 Willow Creek 8380 3.0 5.6 54 13.6 9.5 143 Younts Peak 8350 1.9 4.3 44 5.5 5.0 110 ----- ----- Basin Index (%) 62 142 MADISON-GALLATIN Black Bear 8170 4.8 8.8 55 14.7 10.4 141 Canyon 7870 1.6 3.0 53 7.5 4.7 160 Madison Plateau 7750 2.5 4.9 51 12.7 7.1 179 West Yellowstone 6700 1.0 1.8 56 8.4 4.2 200 Whiskey Creek 6800 .9 3.1 29 8.4 5.7 147 ----- ----- Basin Index (%) 50 161 YELLOWSTONE Beartooth Lake 9360 4.0 6.0 67 4.8 5.4 89 Burnt Mtn 5880 1.2 1.2 100 4.8 5.1 94 Canyon 7870 1.6 3.0 53 7.5 4.7 160 Cole Creek 7850 2.5 4.0 62 3.2 4.9 65 Evening Star 9200 4.9 7.1 69 11.4 8.2 139 Fisher Creek 9100 5.9 8.6 69 11.4 9.0 127 Northeast Entrance 7350 1.0 1.6 62 6.5 4.1 159 Parker Peak 9400 6.1 6.0 102 9.3 5.6 166 Sylvan Lake 8420 3.2 5.0 64 12.9 7.1 182 Thumb Divide 7980 1.0 3.1 32 7.5 5.3 142 Two Ocean Plateau 9240 7.8 8.4 93 10.7 7.9 135 White Mill 8700 3.9 5.9 66 8.0 7.0 114 Wolverine 7650 1.4 2.0 70 5.8 4.0 145 ----- ----- Basin Index (%) 72 133 WIND RIVER Burroughs Creek 8750 .8 -M * 3.1 -M * Castle Creek 8400 .3 -M * 2.6 -M * Cold Springs 9630 1.2 2.5 48 3.4 3.6 94 Deer Park 9700 1.0 4.1 24 4.2 5.5 76 Hobbs Park 10100 -M 4.5 * 4.4 4.4 100 Kirwin 9550 1.6 3.4 47 4.0 3.9 103 Little Warm 9370 .7 2.8 25 5.0 4.2 119 Owl Creek 8975 .9 1.6 56 2.3 2.2 105 South Pass 9040 .8 3.9 21 2.3 5.3 43 St. Lawrence Alt 8620 .4 2.0 20 3.6 3.2 112 Togwotee Pass 9580 5.1 7.0 73 8.7 7.1 123 Townsend Creek 8700 .9 2.4 38 3.7 4.2 88 ----- ----- Basin Index (%) 42 95 BIGHORN BASIN Bald Mtn. 9380 6.6 5.8 114 5.4 5.1 106 Bear Trap Meadow 8200 .6 1.4 43 2.3 3.1 74 Bone Springs Div 9350 3.7 5.0 74 5.0 4.8 104 Grave Springs 8550 1.4 1.8 78 2.7 3.7 73 Kirwin 9550 1.6 3.4 47 4.0 3.9 103 Marquette 8760 1.7 -M * 4.0 -M * Middle Powder 7760 1.4 3.0 47 1.9 4.4 43 Owl Creek 8975 .9 1.6 56 2.3 2.2 105 Powder River Pass 9480 .5 2.9 17 3.0 4.0 75 Shell Creek 9580 4.7 5.0 94 3.8 4.6 83 Timber Creek 7950 1.4 1.7 82 3.0 3.2 94 ----- ----- Basin Index (%) 72 86 SHOSHONE RIVER Blackwater 9780 7.1 7.1 100 10.4 6.4 162 Evening Star 9200 4.9 7.1 69 11.4 8.2 139 Marquette 8760 1.7 -M * 4.0 -M * Sylvan Road 7120 1.2 2.8 43 10.0 5.8 172 Younts Peak 8350 1.9 4.3 44 5.5 5.0 110 ----- ----- Basin Index (%) 71 147 POWDER RIVER Bear Trap Meadow 8200 .6 1.4 43 2.3 3.1 74 Cloud Peak Reservoir 9860 1.3 3.8 34 3.5 4.7 74 Grave Springs 8550 1.4 1.8 78 2.7 3.7 73 Hansen Sawmill 8360 .8 1.6 50 2.4 3.0 80 Middle Powder 7760 1.4 3.0 47 1.9 4.4 43 Powder River Pass 9480 .5 2.9 17 3.0 4.0 75 Soldier Park 8720 .6 -M * 3.1 -M * ----- ----- Basin Index (%) 41 69 TONGUE RIVER Big Goose 7990 1.3 2.4 54 2.6 4.0 65 Bone Springs Div 9350 3.7 5.0 74 5.0 4.8 104 Burgess Junction 7880 1.8 3.0 60 3.3 4.1 80 Dome Lake 8880 2.7 3.6 75 3.9 4.8 81 Little Goose 8870 1.4 -M * 3.4 -M * Sucker Creek 8880 2.5 3.2 78 3.0 4.6 65 Tie Creek 6870 1.5 .8 188 4.3 4.2 102 ----- ----- Basin Index (%) 75 83 BELLE FOURCHE Cole Canyon 5910 1.2 .7 171 2.2 3.5 63 ----- ----- Basin Index (%) 171 63 CHEYENNE RIVER BASIN Blind Park 6890 2.5 1.7 147 3.4 4.3 79 North Rapid Creek 6130 2.3 1.5 153 2.2 3.7 59 ----- ----- Basin Index (%) 150 70 UPPER N. PLATTE Arapaho Ridge 10960 3.9 5.7 68 6.2 6.7 93 Blackhall Mtn 9820 4.8 -M * 7.3 -M * Columbine 9160 3.1 4.6 67 5.5 6.9 80 Divide Peak 8880 2.9 4.4 66 5.3 6.6 80 Joe Wright 10120 2.3 5.8 40 6.4 7.9 81 Laprele Creek 8375 1.0 2.3 43 1.3 4.0 32 Med Bow 10500 7.9 -M * 8.9 -M * North French Creek 10130 3.6 6.8 53 5.9 7.5 79 Never Summer 10280 3.0 4.9 61 4.7 -M * Old Battle 10000 4.4 7.6 58 5.3 9.8 54 Rawah 9020 2.2 2.4 92 4.4 4.7 94 Sage Creek Basin 7850 1.9 2.2 86 3.5 4.5 78 Sand Lake 10050 4.9 7.2 68 4.7 7.1 66 South Brush Creek 8440 .9 2.7 33 2.0 4.8 42 Tower 10500 4.8 11.4 42 6.2 11.3 55 Webber Springs 9250 2.6 4.8 54 4.3 7.5 57 Willow Creek Pass 9540 2.5 3.6 69 3.6 4.4 82 Zirkel 9340 2.8 4.6 61 6.9 7.9 87 ----- ----- Basin Index (%) 58 70 SWEETWATER Deer Park 9700 1.0 4.1 24 4.2 5.5 76 Larsen Creek 9000 .6 2.4 25 5.2 -M * South Pass 9040 .8 3.9 21 2.3 5.3 43 ----- ----- Basin Index (%) 23 60 LOWER N. PLATTE Casper Mtn. 7900 1.7 3.4 50 1.9 5.4 35 Laprele Creek 8375 1.0 2.3 43 1.3 4.0 32 Reno Hill 8400 1.9 3.5 54 2.4 4.9 49 Windy Peak 7900 .9 1.7 53 1.6 3.5 46 ----- ----- Basin Index (%) 50 40 LARAMIE RIVER Brooklyn Lake 10240 2.2 4.2 52 2.5 5.6 45 Cinnabar Park 9574 2.6 5.3 49 5.1 6.4 80 Crow Creek 8330 1.0 1.8 56 2.5 3.5 71 Deadman Hill 10220 3.7 4.7 79 4.5 5.2 87 Rawah 9020 2.2 2.4 92 4.4 4.7 94 Roach 9700 2.0 3.9 51 3.4 5.6 61 ----- ----- Basin Index (%) 61 72 S. PLATTE Black Mountain 8920 1.6 -M * 3.2 -M * Crow Creek 8330 1.0 1.8 56 2.5 3.5 71 Deadman Hill 10220 3.7 4.7 79 4.5 5.2 87 ----- ----- Basin Index (%) 72 80 LITTLE SNAKE RIVER Battle Mountain 7440 1.9 1.5 127 -M 4.5 * Divide Peak 8880 2.9 4.4 66 5.3 6.6 80 Elk River 8700 2.8 3.0 93 4.6 5.6 82 Little Snake River 8915 3.0 3.7 81 7.7 8.4 92 Old Battle 10000 4.4 7.6 58 5.3 9.8 54 Sage Creek Basin 7850 1.9 2.2 86 3.5 4.5 78 Sandstone RS 8150 2.2 2.1 105 2.4 5.3 45 Whiskey Park 8950 2.6 4.6 57 6.6 7.2 92 ----- ----- Basin Index (%) 75 75 UPPER GREEN RIVER Big Sandy Opening 9080 2.6 3.6 72 5.8 4.0 145 Blind Bull Sum 8650 3.7 4.9 76 6.7 5.6 120 East Rim Divide 7930 .8 1.9 42 4.4 3.4 129 Elkhart Park G.S. 9400 1.0 3.2 31 6.3 4.1 154 Gros Ventre Summit 8750 1.6 3.7 43 6.2 4.1 151 Gunsight Pass 9820 1.5 3.2 47 6.2 4.0 155 Kendall R.S. 7740 1.3 2.5 52 5.6 3.9 144 Loomis Park 8240 1.0 3.1 32 6.3 4.7 134 New Fork Lake 8340 1.4 2.2 64 2.9 3.3 88 Pocket Creek 9360 4.8 -M * 7.1 -M * Snider Basin 8060 .7 2.8 25 6.1 3.8 161 Spring Creek Divide 9000 3.6 5.0 72 9.4 6.4 147 Triple Peak 8500 4.6 5.0 92 9.4 6.6 142 ----- ----- Basin Index (%) 58 140 LOWER GREEN RIVER Blacks Fork Jct 8870 1.6 -M * 3.2 -M * Buck Pasture 9700 2.9 -M * 5.3 -M * EF Blacks Fork GS 9360 1.4 -M * 4.0 -M * Hams Fork 7840 .3 2.1 14 4.9 3.3 148 Hewinta 9519 .8 1.9 42 3.4 4.5 76 Hickerson Park 9145 2.3 1.5 153 2.7 3.8 71 Hole-in-Rock 9150 .8 1.6 50 2.7 3.5 77 Indian Creek 9425 3.2 5.6 57 7.6 5.8 131 Kelley R.S. 8180 1.8 2.9 62 7.2 4.9 147 Spirit Lk 10235 2.8 -M * 5.0 -M * Steel Creek Park 10200 2.8 3.9 72 4.7 5.2 90 ----- ----- Basin Index (%) 62 107 UPPER BEAR RIVER Bear River RS 8777 1.6 -M * 3.6 -M * Bug Lake 7950 2.8 3.5 80 5.9 5.4 109 Burts Miller Ranch 8000 .7 -M * 2.0 -M * Chalk Creek #1 8993 4.1 5.1 80 6.5 7.5 87 Hayden Fork 9212 2.7 3.0 90 5.9 6.2 95 Kelley R.S. 8180 1.8 2.9 62 7.2 4.9 147 Lily Lake 9156 1.4 2.8 50 4.0 5.4 74 Monte Cristo 8960 3.0 5.4 56 6.9 7.1 97 Salt River Summit 7760 .8 2.0 40 6.6 4.4 150 ----- ----- Basin Index (%) 67 105 ----------------------------------------------------------------------------- -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.