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 6 , 2018 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 1.1 .5 220* 3.4 2.5 136 Black Bear 8170 2.7 3.7 73* 5.5 4.8 115 Blind Bull Sum 8650 1.6 2.0 80* 2.9 2.5 116 Cottonwood Creek 7670 2.2 1.3 169* 4.6 3.4 135 East Rim Divide 7930 .3 .6 50* 2.0 1.7 118 Grand Targhee 9260 6.3 5.5 115 7.2 6.1 118 Granite Creek 6770 .7 .6 117* 3.2 2.4 133 Grassy Lake 7265 2.2 1.7 129* 5.5 4.3 128 Gros Ventre Summit 8750 .6 1.9 32 1.5 2.2 68 Gunsight Pass 9820 .9 1.4 64 3.1 2.5 124 Lewis Lake Divide 7850 1.9 1.7 112* 5.0 4.1 122 Phillips Bench 8200 1.2 1.8 67* 4.5 3.1 145 Salt River Summit 7640 .5 .4 125* 2.8 2.1 133 Snake River Station 6920 1.2 .5 240* 4.8 3.1 155 Spring Creek Divide 9000 2.5 1.7 147* 4.3 2.9 148 Thumb Divide 7980 .5 1.0 50* 2.8 2.7 104 Togwotee Pass 9580 4.1 3.2 128 5.0 3.5 143 Two Ocean Plateau 9240 4.7 4.1 115 4.3 3.9 110 Willow Creek 8080 2.2 1.7 129* 6.1 4.6 133 Younts Peak 8350 -M 1.8 * -M 2.6 * ----- ----- Basin Index (%) 106* 126 MADISON-GALLATIN Black Bear 8170 2.7 3.7 73* 5.5 4.8 115 Canyon 7870 -M 1.0 * -M 2.3 * Madison Plateau 7750 1.4 1.8 78* 3.6 3.5 103 West Yellowstone 6700 -M .3 * -M 2.2 * Whiskey Creek 6800 .4 .9 44* 1.6 2.8 57 ----- ----- Basin Index (%) 70* 96 YELLOWSTONE Beartooth Lake 9360 3.2 3.4 94 2.7 2.8 96 Burnt Mtn 5880 .2 .0 * 2.7 3.6 75 Canyon 7870 -M 1.0 * -M 2.3 * Cole Creek 7850 2.7 3.0 90 3.4 3.4 100 Evening Star 9200 4.5 3.1 145 6.6 4.0 165 Fisher Creek 9100 4.0 3.5 114 6.7 4.4 152 Northeast Entrance 7350 1.4 .2 700* 3.9 2.1 186 Parker Peak 9400 4.4 3.1 142 5.6 3.1 181 Sylvan Lake 8420 3.2 2.2 145 6.9 3.6 192 Thumb Divide 7980 .5 1.0 50* 2.8 2.7 104 Two Ocean Plateau 9240 4.7 4.1 115 4.3 3.9 110 White Mill 8700 2.8 2.7 104 3.2 3.5 91 Wolverine 7650 .7 .3 233* 2.8 2.2 127 ----- ----- Basin Index (%) 121 131 WIND RIVER Burroughs Creek 8750 .8 -M * 1.9 -M * Castle Creek 8400 .0 -M * .9 -M * Cold Springs 9630 .9 1.2 75 1.0 2.2 45 Deer Park 9700 1.1 1.9 58 1.7 3.5 49 Hobbs Park 10100 1.5 2.3 65 1.2 2.6 46 Kirwin 9550 .9 2.0 45 1.0 2.4 42 Little Warm 9370 .6 1.5 40 1.7 2.3 74 Owl Creek 8975 .8 1.0 80 1.4 1.4 100 South Pass 9040 .6 1.6 38 1.8 2.8 64 St. Lawrence Alt 8620 .0 1.0 0 2.0 2.1 95 Togwotee Pass 9580 4.1 3.2 128 5.0 3.5 143 Townsend Creek 8700 .9 1.2 75 1.8 2.6 69 ----- ----- Basin Index (%) 67 73 BIGHORN BASIN Bald Mtn. 9380 4.7 3.6 131 2.3 3.2 72 Bear Trap Meadow 8200 1.4 .7 200 1.7 2.0 85 Bone Springs Div 9350 3.2 3.1 103 2.9 3.1 94 Grave Springs 8550 1.4 1.0 140 2.0 2.6 77 Kirwin 9550 .9 2.0 45 1.0 2.4 42 Marquette 8760 .5 -M * 1.4 -M * Middle Powder 7760 2.2 1.3 169 1.2 2.8 43 Owl Creek 8975 .8 1.0 80 1.4 1.4 100 Powder River Pass 9480 2.1 1.6 131 1.8 2.5 72 Shell Creek 9580 4.1 3.3 124 3.7 2.8 132 Timber Creek 7950 .0 .8 0 1.4 2.4 58 ----- ----- Basin Index (%) 113 77 SHOSHONE RIVER Blackwater 9780 4.8 3.3 145 5.4 3.4 159 Evening Star 9200 4.5 3.1 145 6.6 4.0 165 Marquette 8760 .5 -M * 1.4 -M * Sylvan Road 7120 1.1 .5 220* 3.2 2.8 114 Younts Peak 8350 -M 1.8 * -M 2.6 * ----- ----- Basin Index (%) 151* 149 POWDER RIVER Bear Trap Meadow 8200 1.4 .7 200 1.7 2.0 85 Cloud Peak Reservoir 9860 3.3 2.2 150 3.0 3.2 94 Grave Springs 8550 1.4 1.0 140 2.0 2.6 77 Hansen Sawmill 8360 .3 .8 38 2.0 2.1 95 Middle Powder 7760 2.2 1.3 169 1.2 2.8 43 Powder River Pass 9480 2.1 1.6 131 1.8 2.5 72 Soldier Park 8720 .3 -M * 2.0 -M * ----- ----- Basin Index (%) 141 77 TONGUE RIVER Big Goose 7990 .9 1.2 75 2.8 2.8 100 Bone Springs Div 9350 3.2 3.1 103 2.9 3.1 94 Burgess Junction 7880 1.3 1.6 81 2.1 2.8 75 Dome Lake 8880 1.9 2.3 83 2.3 3.1 74 Little Goose 8870 1.9 -M * 2.4 -M * Sucker Creek 8880 2.7 1.8 150 2.5 3.1 81 Tie Creek 6870 .3 .3 100* 3.6 3.0 120 ----- ----- Basin Index (%) 100 91 BELLE FOURCHE Cole Canyon 5910 .5 .0 * 2.7 2.4 112 ----- ----- Basin Index (%) * 112 CHEYENNE RIVER BASIN Blind Park 6890 .9 .8 112 1.8 3.0 60 North Rapid Creek 6130 .4 .5 80* 1.5 2.6 58 ----- ----- Basin Index (%) 100 59 UPPER N. PLATTE Arapaho Ridge 10960 4.4 3.2 138 5.9 4.0 148 Blackhall Mtn 9820 3.4 -M * 6.8 -M * Columbine 9160 2.9 1.1 264* 5.7 3.3 173 Divide Peak 8880 1.1 2.0 55* 4.0 3.8 105 Joe Wright 10120 4.0 3.3 121 8.1 4.3 188 Laprele Creek 8375 1.5 .8 188* 2.5 2.5 100 Med Bow 10500 5.9 -M * 7.7 -M * North French Creek 10130 5.6 3.1 181* 7.4 4.1 180 Never Summer 10280 4.4 2.7 163 5.9 -M * Old Battle 10000 4.9 3.2 153* 7.2 5.1 141 Rawah 9020 1.5 .8 188* 4.3 2.9 148 Sage Creek Basin 7850 .7 .9 78* 3.4 2.8 121 Sand Lake 10050 4.2 3.3 127 3.9 3.8 103 South Brush Creek 8440 1.9 .8 238* 3.0 2.9 103 Tower 10500 7.0 5.0 140* 6.8 5.6 121 Webber Springs 9250 2.3 1.6 144* 5.8 3.9 149 Willow Creek Pass 9540 2.9 1.6 181 4.3 2.5 172 Zirkel 9340 3.6 1.7 212* 6.9 4.7 147 ----- ----- Basin Index (%) 151* 141 SWEETWATER Deer Park 9700 1.1 1.9 58 1.7 3.5 49 Larsen Creek 9000 .2 .4 50* 2.2 -M * South Pass 9040 .6 1.6 38 1.8 2.8 64 ----- ----- Basin Index (%) 49 56 LOWER N. PLATTE Casper Mtn. 7900 1.6 1.5 107 1.9 3.4 56 Laprele Creek 8375 1.5 .8 188* 2.5 2.5 100 Reno Hill 8400 1.6 1.8 89 2.6 3.2 81 Windy Peak 7900 1.2 .6 200* 1.3 2.2 59 ----- ----- Basin Index (%) 126 73 LARAMIE RIVER Brooklyn Lake 10240 2.6 1.7 153* 4.4 2.9 152 Cinnabar Park 9574 4.1 1.9 216* 5.9 3.6 164 Crow Creek 8330 .2 .8 25 2.2 2.3 96 Deadman Hill 10220 3.4 2.4 142 3.8 3.0 127 Rawah 9020 1.5 .8 188* 4.3 2.9 148 Roach 9700 2.2 1.7 129* 4.0 3.0 133 ----- ----- Basin Index (%) 151* 139 S. PLATTE Black Mountain 8920 1.1 -M * 2.4 -M * Crow Creek 8330 .2 .8 25 2.2 2.3 96 Deadman Hill 10220 3.4 2.4 142 3.8 3.0 127 ----- ----- Basin Index (%) 112 113 LITTLE SNAKE RIVER Battle Mountain 7440 .8 .0 * 2.2 2.6 85 Divide Peak 8880 1.1 2.0 55* 4.0 3.8 105 Elk River 8700 1.7 .4 425* 2.9 3.1 94 Little Snake River 8915 2.8 1.2 233* 8.3 5.3 157 Old Battle 10000 4.9 3.2 153* 7.2 5.1 141 Sage Creek Basin 7850 .7 .9 78* 3.4 2.8 121 Sandstone RS 8150 1.5 .4 375* 3.1 2.9 107 Whiskey Park 8950 3.6 1.6 225* 7.2 3.7 195 ----- ----- Basin Index (%) 176* 131 UPPER GREEN RIVER Big Sandy Opening 9080 .9 1.9 47 2.4 2.1 114 Blind Bull Sum 8650 1.6 2.0 80* 2.9 2.5 116 East Rim Divide 7930 .3 .6 50* 2.0 1.7 118 Elkhart Park G.S. 9400 1.4 1.3 108 2.6 2.2 118 Gros Ventre Summit 8750 .6 1.9 32 1.5 2.2 68 Gunsight Pass 9820 .9 1.4 64 3.1 2.5 124 Kendall R.S. 7740 .4 .7 57* 1.9 2.0 95 Loomis Park 8240 1.5 1.0 150* -M 2.2 * New Fork Lake 8340 .5 .9 56* 1.6 1.8 89 Pocket Creek 9360 2.2 -M * 3.3 -M * Snyder Basin 8060 1.0 .4 250* 3.1 1.8 172 Spring Creek Divide 9000 2.5 1.7 147* 4.3 2.9 148 Triple Peak 8500 2.9 1.8 161* 4.9 3.0 163 ----- ----- Basin Index (%) 93* 123 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 2.4 -M * Buck Pasture 9632 .8 -M * 4.1 -M * EF Blacks Fork GS 9360 .6 -M * 2.7 -M * Hams Fork 7840 .4 .4 100* 2.5 1.8 139 Hewinta 9500 .2 .4 50* 2.7 2.6 104 Hickerson Park 9122 .7 .6 117* 3.6 2.4 150 Hole-in-Rock 9168 .0 .5 0* 3.0 2.4 125 Indian Creek 9425 1.4 2.6 54 2.7 2.9 93 Kelley R.S. 8180 1.1 .9 122* 2.3 2.4 96 Spirit Lk 10235 1.6 -M * 4.7 -M * Steel Creek Park 10158 1.2 1.9 63 3.2 2.9 110 ----- ----- Basin Index (%) 68* 115 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 3.0 -M * Bug Lake 7987 .1 .9 11* 4.1 2.7 152 Burts Miller Ranch 8000 .3 -M * 1.7 -M * Chalk Creek #1 9171 .6 2.1 29* 5.9 3.8 155 Hayden Fork 9130 .2 .6 33* 4.6 3.2 144 Kelley R.S. 8180 1.1 .9 122* 2.3 2.4 96 Lily Lake 9133 .0 .9 0* 3.3 3.0 110 Monte Cristo 8932 .8 1.1 73* 3.9 3.5 111 Salt River Summit 7640 .5 .4 125* 2.8 2.1 133 ----- ----- Basin Index (%) 48* 130 ----------------------------------------------------------------------------- -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.