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 TUESDAY: NOVEMBER 22 , 2016 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 .6 2.4 25 7.9 4.8 165 Black Bear 8170 3.4 7.2 47 13.4 8.4 160 Blind Bull Sum 8650 2.8 3.9 72 6.0 4.4 136 Cottonwood Creek 7670 1.9 3.0 63 9.0 5.5 164 East Rim Divide 7930 .8 1.5 53 4.4 2.8 157 Grand Targhee 9260 11.0 9.0 122 13.2 8.9 148 Granite Creek 6770 .7 1.6 44 7.0 4.2 167 Grassy Lake 7265 .6 4.7 13 12.4 7.7 161 Gros Ventre Summit 8750 1.2 3.0 40 6.1 3.4 179 Gunsight Pass 9820 1.4 2.6 54 6.1 3.5 174 Lewis Lake Divide 7850 .2 5.2 4 11.3 7.8 145 Phillips Bench 8200 .6 3.9 15 9.9 5.7 174 Salt River Summit 7760 .3 1.3 23 6.1 3.5 174 Snake River Station 6920 .7 1.9 37 8.6 5.2 165 Spring Creek Divide 9000 2.3 3.9 59 8.1 5.1 159 Thumb Divide 7980 .9 2.3 39 7.2 4.4 164 Togwotee Pass 9580 4.1 5.5 75 7.6 5.8 131 Two Ocean Plateau 9240 7.0 7.0 100 9.8 6.5 151 Willow Creek 8380 1.2 4.0 30 11.7 7.5 156 Younts Peak 8350 1.8 3.3 55 5.8 4.2 138 ----- ----- Basin Index (%) 56 157 MADISON-GALLATIN Black Bear 8170 3.4 7.2 47 13.4 8.4 160 Canyon 7870 1.1 2.2 50 7.1 4.0 178 Madison Plateau 7750 1.7 3.8 45 11.9 5.7 209 West Yellowstone 6700 .8 1.4 57 7.9 3.4 232 Whiskey Creek 6800 .7 2.2 32 8.0 4.6 174 ----- ----- Basin Index (%) 46 185 YELLOWSTONE Beartooth Lake 9360 3.7 5.2 71 4.8 4.5 107 Burnt Mtn 5880 1.3 .8 162 4.8 4.6 104 Canyon 7870 1.1 2.2 50 7.1 4.0 178 Cole Creek 7850 2.3 3.4 68 3.1 4.4 70 Evening Star 9200 4.5 5.8 78 10.8 6.8 159 Fisher Creek 9100 5.1 7.0 73 10.5 7.4 142 Northeast Entrance 7350 .5 1.1 45 6.3 3.4 185 Parker Peak 9400 5.7 4.9 116 8.9 4.7 189 Sylvan Lake 8420 2.5 4.1 61 12.1 5.9 205 Thumb Divide 7980 .9 2.3 39 7.2 4.4 164 Two Ocean Plateau 9240 7.0 7.0 100 9.8 6.5 151 White Mill 8700 3.4 4.8 71 7.5 5.8 129 Wolverine 7650 1.2 1.2 100 5.7 3.4 168 ----- ----- Basin Index (%) 79 150 WIND RIVER Burroughs Creek 8750 .9 -M * 3.7 -M * Castle Creek 8400 .4 -M * 2.7 -M * Cold Springs 9630 1.2 1.8 67 3.6 3.1 116 Deer Park 9700 .6 3.4 18 4.2 4.8 88 Hobbs Park 10100 3.0 3.8 79 4.7 3.8 124 Kirwin 9550 1.8 3.0 60 4.3 3.4 126 Little Warm 9370 1.0 2.3 43 5.3 3.5 151 Owl Creek 8975 .8 1.4 57 2.2 2.0 110 South Pass 9040 .7 3.1 23 2.4 4.4 55 St. Lawrence Alt 8620 .9 1.6 56 3.6 2.8 129 Togwotee Pass 9580 4.1 5.5 75 7.6 5.8 131 Townsend Creek 8700 .9 2.0 45 4.0 3.6 111 ----- ----- Basin Index (%) 54 113 BIGHORN BASIN Bald Mtn. 9380 5.5 4.8 115 5.1 4.5 113 Bear Trap Meadow 8200 .4 1.2 33 2.4 2.8 86 Bone Springs Div 9350 3.1 4.5 69 4.8 4.3 112 Grave Springs 8550 .7 1.5 47 2.2 3.3 67 Kirwin 9550 1.8 3.0 60 4.3 3.4 126 Marquette 8760 1.9 -M * 4.0 -M * Middle Powder 7760 .6 2.1 29 1.9 3.9 49 Owl Creek 8975 .8 1.4 57 2.2 2.0 110 Powder River Pass 9480 .2 2.3 9 3.3 3.5 94 Shell Creek 9580 4.7 4.2 112 4.0 3.9 103 Timber Creek 7950 1.4 1.4 100 3.0 2.9 103 ----- ----- Basin Index (%) 73 96 SHOSHONE RIVER Blackwater 9780 6.5 5.6 116 10.0 5.4 185 Evening Star 9200 4.5 5.8 78 10.8 6.8 159 Marquette 8760 1.9 -M * 4.0 -M * Sylvan Road 7120 .6 1.8 33 9.0 4.7 191 Younts Peak 8350 1.8 3.3 55 5.8 4.2 138 ----- ----- Basin Index (%) 81 169 POWDER RIVER Bear Trap Meadow 8200 .4 1.2 33 2.4 2.8 86 Cloud Peak Reservoir 9860 1.2 3.4 35 3.6 4.2 86 Grave Springs 8550 .7 1.5 47 2.2 3.3 67 Hansen Sawmill 8360 1.0 1.3 77 2.6 2.7 96 Middle Powder 7760 .6 2.1 29 1.9 3.9 49 Powder River Pass 9480 .2 2.3 9 3.3 3.5 94 Soldier Park 8720 1.0 -M * 3.2 -M * ----- ----- Basin Index (%) 35 78 TONGUE RIVER Big Goose 7990 1.3 2.0 65 2.5 3.5 71 Bone Springs Div 9350 3.1 4.5 69 4.8 4.3 112 Burgess Junction 7880 1.1 2.6 42 3.0 3.7 81 Dome Lake 8880 2.7 3.1 87 3.8 4.2 90 Little Goose 8870 1.4 -M * 3.4 -M * Sucker Creek 8880 1.8 2.9 62 2.6 4.2 62 Tie Creek 6870 1.4 .6 233 3.9 3.7 105 ----- ----- Basin Index (%) 73 87 BELLE FOURCHE Cole Canyon 5910 .1 .6 17 1.5 3.1 48 ----- ----- Basin Index (%) 17 48 CHEYENNE RIVER BASIN Blind Park 6890 .0 1.4 0 1.7 3.9 44 North Rapid Creek 6130 .2 1.1 18 1.1 3.4 32 ----- ----- Basin Index (%) 8 38 UPPER N. PLATTE Arapaho Ridge 10960 1.9 4.9 39 4.2 5.9 71 Blackhall Mtn 9820 1.9 -M * 4.3 -M * Columbine 9160 .6 3.5 17 3.7 5.5 67 Divide Peak 8880 .7 3.6 19 2.9 5.6 52 Joe Wright 10120 1.8 4.9 37 4.8 6.7 72 Laprele Creek 8375 .2 2.0 10 -M 3.5 * Med Bow 10500 3.7 -M * 4.9 -M * North French Creek 10130 1.1 5.1 22 3.5 6.3 56 Never Summer 10280 2.0 4.3 47 3.7 -M * Old Battle 10000 1.5 6.1 25 3.0 8.1 37 Rawah 9020 1.2 1.9 63 3.5 4.2 83 Sage Creek Basin 7850 .6 1.7 35 1.9 3.7 51 Sand Lake 10050 2.3 5.7 40 2.4 6.0 40 South Brush Creek 8440 .1 2.0 5 1.8 4.0 45 Tower 10500 -M 9.2 * 3.1 9.2 34 Webber Springs 9250 -M 3.8 * 3.9 6.2 63 Willow Creek Pass 9540 1.6 2.9 55 2.8 3.7 76 Zirkel 9340 -M 3.5 * 4.7 7.0 67 ----- ----- Basin Index (%) 32 56 SWEETWATER Deer Park 9700 .6 3.4 18 4.2 4.8 88 Larsen Creek 9000 .5 1.8 28 4.9 -M * South Pass 9040 .7 3.1 23 2.4 4.4 55 ----- ----- Basin Index (%) 22 72 LOWER N. PLATTE Casper Mtn. 7900 1.1 3.0 37 -M 4.6 * Laprele Creek 8375 .2 2.0 10 -M 3.5 * Reno Hill 8400 .9 2.7 33 1.5 4.2 36 Windy Peak 7900 .4 1.4 29 .9 3.0 30 ----- ----- Basin Index (%) 29 33 LARAMIE RIVER Brooklyn Lake 10240 .4 3.8 11 -M 4.8 * Cinnabar Park 9574 -M 4.0 * 2.5 5.4 46 Crow Creek 8330 .4 1.3 31 1.6 3.1 52 Deadman Hill 10220 2.6 3.9 67 3.4 4.5 76 Rawah 9020 1.2 1.9 63 3.5 4.2 83 Roach 9700 .8 3.2 25 2.3 4.7 49 ----- ----- Basin Index (%) 38 61 S. PLATTE Black Mountain 8920 1.2 -M * 2.6 -M * Crow Creek 8330 .4 1.3 31 1.6 3.1 52 Deadman Hill 10220 2.6 3.9 67 3.4 4.5 76 ----- ----- Basin Index (%) 58 66 LITTLE SNAKE RIVER Battle Mountain 7440 .2 1.0 20* 2.7 3.8 71 Divide Peak 8880 .7 3.6 19 2.9 5.6 52 Elk River 8700 .9 2.1 43 3.0 4.6 65 Little Snake River 8915 .1 3.0 3 4.4 7.1 62 Old Battle 10000 1.5 6.1 25 3.0 8.1 37 Sage Creek Basin 7850 .6 1.7 35 1.9 3.7 51 Sandstone RS 8150 .1 1.3 8* 1.2 4.4 27 Whiskey Park 8950 -M 3.8 * 3.6 6.0 60 ----- ----- Basin Index (%) 22 52 UPPER GREEN RIVER Big Sandy Opening 9080 2.5 3.1 81 5.4 3.4 159 Blind Bull Sum 8650 2.8 3.9 72 6.0 4.4 136 East Rim Divide 7930 .8 1.5 53 4.4 2.8 157 Elkhart Park G.S. 9400 .8 2.6 31 6.0 3.5 171 Gros Ventre Summit 8750 1.2 3.0 40 6.1 3.4 179 Gunsight Pass 9820 1.4 2.6 54 6.1 3.5 174 Kendall R.S. 7740 1.2 1.9 63 5.5 3.2 172 Loomis Park 8240 .8 2.2 36 5.9 3.8 155 New Fork Lake 8340 1.1 1.8 61 2.7 2.8 96 Pocket Creek 9360 3.9 -M * 6.4 -M * Snider Basin 8060 .3 1.9 16 5.6 3.1 181 Spring Creek Divide 9000 2.3 3.9 59 8.1 5.1 159 Triple Peak 8500 3.4 3.9 87 8.3 5.3 157 ----- ----- Basin Index (%) 58 158 LOWER GREEN RIVER Blacks Fork Jct 8870 1.0 -M * 2.3 -M * Buck Pasture 9700 1.8 -M * 3.7 -M * EF Blacks Fork GS 9360 .9 -M * 3.0 -M * Hams Fork 7840 .3 1.6 19 4.7 2.7 174 Hewinta 9519 .1 1.4 7 2.6 3.8 68 Hickerson Park 9145 1.9 1.3 146 2.6 3.3 79 Hole-in-Rock 9150 .7 1.2 58 2.6 3.2 81 Indian Creek 9425 2.2 4.7 47 6.9 4.8 144 Kelley R.S. 8180 1.1 2.3 48 6.3 4.0 158 Spirit Lk 10235 2.0 -M * 4.1 -M * Steel Creek Park 10200 1.8 3.2 56 3.4 4.4 77 ----- ----- Basin Index (%) 52 111 UPPER BEAR RIVER Bear River RS 8777 .7 -M * 2.6 -M * Bug Lake 7950 2.2 2.6 85 5.3 4.4 120 Burts Miller Ranch 8000 .3 -M * 1.8 -M * Chalk Creek #1 8993 2.5 3.9 64 4.7 6.1 77 Hayden Fork 9212 1.0 2.3 43 4.0 5.0 80 Kelley R.S. 8180 1.1 2.3 48 6.3 4.0 158 Lily Lake 9156 .7 2.2 32 2.8 4.5 62 Monte Cristo 8960 1.4 3.6 39 5.4 5.7 95 Salt River Summit 7760 .3 1.3 23 6.1 3.5 174 ----- ----- Basin Index (%) 51 104 ----------------------------------------------------------------------------- -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.