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 SUNDAY: NOVEMBER 18 , 2018 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 1.6 1.9 84 3.7 4.2 88 Black Bear 8170 3.2 6.3 51 5.7 7.4 77 Blind Bull Sum 8650 2.1 3.3 64 3.3 3.9 85 Cottonwood Creek 7670 2.6 2.6 100 4.9 5.0 98 East Rim Divide 7930 .8 1.3 62 2.2 2.5 88 Grand Targhee 9260 7.8 8.1 96 8.5 8.8 97 Granite Creek 6770 1.2 1.4 86* 3.8 3.8 100 Grassy Lake 7265 2.3 3.9 59 -M 6.8 * Gros Ventre Summit 8750 1.1 2.8 39 2.1 3.1 68 Gunsight Pass 9820 1.5 2.5 60 3.9 3.4 115 Lewis Lake Divide 7850 1.8 4.2 43 5.6 6.8 82 Phillips Bench 8200 1.8 3.4 53 5.4 5.1 106 Salt River Summit 7640 .6 1.0 60* 2.8 3.2 88 Snake River Station 6920 1.5 1.4 107* 5.5 4.6 120 Spring Creek Divide 9000 2.7 3.3 82 4.5 4.7 96 Thumb Divide 7980 .5 2.0 25 3.1 3.9 79 Togwotee Pass 9580 5.3 5.0 106 6.3 5.3 119 Two Ocean Plateau 9240 5.3 6.0 88 4.8 5.8 83 Willow Creek 8080 3.0 3.6 83 7.1 6.9 103 Younts Peak 8350 -M 3.0 * -M 3.8 * ----- ----- Basin Index (%) 73 94 MADISON-GALLATIN Black Bear 8170 3.2 6.3 51 5.7 7.4 77 Canyon 7870 1.0 1.8 56 2.8 3.5 80 Madison Plateau 7750 1.8 3.2 56 3.4 5.1 67 West Yellowstone 6700 -M 1.1 * -M 3.1 * Whiskey Creek 6800 .3 1.8 17 1.6 4.1 39 ----- ----- Basin Index (%) 48 67 YELLOWSTONE Beartooth Lake 9360 4.2 4.6 91 3.4 4.0 85 Burnt Mtn 5880 1.3 .1 1300* 4.2 4.3 98 Canyon 7870 1.0 1.8 56 2.8 3.5 80 Cole Creek 7850 4.4 3.5 126 5.4 4.2 129 Evening Star 9200 5.5 4.9 112 7.9 6.1 130 Fisher Creek 9100 5.1 5.9 86 8.4 6.6 127 Northeast Entrance 7350 1.9 .9 211* 4.3 3.1 139 Parker Peak 9400 5.2 4.5 116 6.4 4.3 149 Sylvan Lake 8420 4.5 3.6 125 8.3 5.3 157 Thumb Divide 7980 .5 2.0 25 3.1 3.9 79 Two Ocean Plateau 9240 5.3 6.0 88 4.8 5.8 83 White Mill 8700 3.9 4.3 91 4.0 5.2 77 Wolverine 7650 1.3 1.0 130 3.5 3.1 113 ----- ----- Basin Index (%) 102 112 WIND RIVER Burroughs Creek 8750 1.4 -M * 2.4 -M * Castle Creek 8400 .5 -M * 1.7 -M * Cold Springs 9630 1.6 1.8 89 1.9 2.9 66 Deer Park 9700 2.1 3.3 64 2.5 4.7 53 Hobbs Park 10100 2.4 3.5 69 2.1 3.6 58 Kirwin 9550 1.5 2.7 56 1.7 3.1 55 Little Warm 9370 1.3 2.2 59 2.3 3.2 72 Owl Creek 8975 1.9 1.3 146 2.3 1.9 121 South Pass 9040 1.4 2.8 50 2.4 4.1 59 St. Lawrence Alt 8620 .9 1.5 60 3.0 2.6 115 Togwotee Pass 9580 5.3 5.0 106 6.3 5.3 119 Townsend Creek 8700 1.9 1.9 100 3.5 3.4 103 ----- ----- Basin Index (%) 78 80 BIGHORN BASIN Bald Mtn. 9380 5.8 4.4 132 4.0 4.2 95 Bear Trap Meadow 8200 2.4 1.0 240 2.8 2.6 108 Bone Springs Div 9350 4.2 4.1 102 3.7 4.0 92 Grave Springs 8550 2.1 1.4 150 2.7 3.1 87 Kirwin 9550 1.5 2.7 56 1.7 3.1 55 Marquette 8760 1.5 -M * 2.4 -M * Middle Powder 7760 3.1 1.9 163 2.4 3.6 67 Owl Creek 8975 1.9 1.3 146 2.3 1.9 121 Powder River Pass 9480 3.0 2.2 136 2.8 3.3 85 Shell Creek 9580 4.9 3.9 126 4.5 3.7 122 Timber Creek 7950 .9 1.3 69 2.5 2.8 89 ----- ----- Basin Index (%) 123 91 SHOSHONE RIVER Blackwater 9780 6.1 4.7 130 6.5 4.9 133 Evening Star 9200 5.5 4.9 112 7.9 6.1 130 Marquette 8760 1.5 -M * 2.4 -M * Sylvan Road 7120 1.7 1.5 113 4.2 4.2 100 Younts Peak 8350 -M 3.0 * -M 3.8 * ----- ----- Basin Index (%) 120 122 POWDER RIVER Bear Trap Meadow 8200 2.4 1.0 240 2.8 2.6 108 Cloud Peak Reservoir 9860 4.0 3.1 129 3.4 4.0 85 Grave Springs 8550 2.1 1.4 150 2.7 3.1 87 Hansen Sawmill 8360 .6 1.0 60 2.4 2.6 92 Middle Powder 7760 3.1 1.9 163 2.4 3.6 67 Powder River Pass 9480 3.0 2.2 136 2.8 3.3 85 Soldier Park 8720 .5 -M * 2.3 -M * ----- ----- Basin Index (%) 143 86 TONGUE RIVER Big Goose 7990 1.6 1.7 94 3.5 3.3 106 Bone Springs Div 9350 4.2 4.1 102 3.7 4.0 92 Burgess Junction 7880 2.2 2.4 92 3.2 3.5 91 Dome Lake 8880 2.0 2.9 69 2.9 4.0 72 Little Goose 8870 2.8 -M * 3.0 -M * Sucker Creek 8880 3.6 2.6 138 3.4 3.9 87 Tie Creek 6870 .9 .6 150 4.8 3.6 133 ----- ----- Basin Index (%) 101 96 BELLE FOURCHE Cole Canyon 5910 .9 .4 225* 3.1 3.0 103 ----- ----- Basin Index (%) 225* 103 CHEYENNE RIVER BASIN Blind Park 6890 1.1 1.2 92 1.8 3.7 49 North Rapid Creek 6130 .6 .9 67 1.7 3.2 53 ----- ----- Basin Index (%) 81 51 UPPER N. PLATTE Arapaho Ridge 10960 4.9 4.5 109 6.5 5.7 114 Blackhall Mtn 9820 4.2 -M * 7.6 -M * Columbine 9160 3.2 2.8 114 6.3 5.1 124 Divide Peak 8880 2.0 3.2 62 5.0 5.1 98 Joe Wright 10120 4.7 4.6 102 9.5 6.2 153 Laprele Creek 8375 2.2 1.8 122 3.5 3.3 106 Med Bow 10500 7.5 -M * 9.4 -M * North French Creek 10130 6.9 4.8 144 8.9 5.8 153 Never Summer 10280 4.9 4.1 120 6.3 -M * Old Battle 10000 5.8 5.7 102 7.9 7.4 107 Rawah 9020 2.0 1.7 118 4.8 4.1 117 Sage Creek Basin 7850 1.3 1.7 76 4.0 3.6 111 Sand Lake 10050 5.2 5.0 104 4.8 5.5 87 South Brush Creek 8440 2.4 1.6 150 3.6 3.8 95 Tower 10500 7.9 8.4 94 7.7 8.5 91 Webber Springs 9250 3.0 3.3 91 -M 5.7 * Willow Creek Pass 9540 3.4 2.6 131 5.0 3.5 143 Zirkel 9340 4.1 3.3 124 7.9 6.7 118 ----- ----- Basin Index (%) 108 115 SWEETWATER Deer Park 9700 2.1 3.3 64 2.5 4.7 53 Larsen Creek 9000 .2 1.4 14 2.7 -M * South Pass 9040 1.4 2.8 50 2.4 4.1 59 ----- ----- Basin Index (%) 49 56 LOWER N. PLATTE Casper Mtn. 7900 2.6 2.7 96 2.9 4.4 66 Laprele Creek 8375 2.2 1.8 122 3.5 3.3 106 Reno Hill 8400 2.5 2.5 100 3.7 4.0 92 Windy Peak 7900 1.7 1.4 121 1.9 2.9 66 ----- ----- Basin Index (%) 107 82 LARAMIE RIVER Brooklyn Lake 10240 3.8 3.1 123 5.7 4.3 133 Cinnabar Park 9574 5.2 3.5 149 7.2 5.2 138 Crow Creek 8330 .6 1.0 60 2.8 2.9 97 Deadman Hill 10220 4.0 3.5 114 4.4 4.2 105 Rawah 9020 2.0 1.7 118 4.8 4.1 117 Roach 9700 2.9 2.7 107 4.7 4.3 109 ----- ----- Basin Index (%) 119 118 S. PLATTE Black Mountain 8920 1.6 -M * 2.9 -M * Crow Creek 8330 .6 1.0 60 2.8 2.9 97 Deadman Hill 10220 4.0 3.5 114 4.4 4.2 105 ----- ----- Basin Index (%) 102 101 LITTLE SNAKE RIVER Battle Mountain 7440 1.3 .8 162* 2.7 3.5 77 Divide Peak 8880 2.0 3.2 62 5.0 5.1 98 Elk River 8700 2.1 1.6 131* 3.6 4.3 84 Little Snake River 8915 2.9 2.9 100 9.1 6.9 132 Old Battle 10000 5.8 5.7 102 7.9 7.4 107 Sage Creek Basin 7850 1.3 1.7 76 4.0 3.6 111 Sandstone RS 8150 1.9 1.1 173* 3.7 4.1 90 Whiskey Park 8950 4.1 3.4 121 7.8 5.5 142 ----- ----- Basin Index (%) 105 108 UPPER GREEN RIVER Big Sandy Opening 9080 1.4 2.9 48 2.8 3.1 90 Blind Bull Sum 8650 2.1 3.3 64 3.3 3.9 85 East Rim Divide 7930 .8 1.3 62 2.2 2.5 88 Elkhart Park G.S. 9400 1.8 2.4 75 3.4 3.2 106 Gros Ventre Summit 8750 1.1 2.8 39 2.1 3.1 68 Gunsight Pass 9820 1.5 2.5 60 3.9 3.4 115 Kendall R.S. 7740 .7 1.6 44 2.2 3.0 73 Loomis Park 8240 2.0 2.1 95 3.6 3.5 103 New Fork Lake 8340 1.0 1.6 62 1.9 2.6 73 Pocket Creek 9360 2.8 -M * 3.9 -M * Snyder Basin 8060 1.3 1.6 81 3.2 2.9 110 Spring Creek Divide 9000 2.7 3.3 82 4.5 4.7 96 Triple Peak 8500 3.5 3.2 109 5.5 4.8 115 ----- ----- Basin Index (%) 70 95 LOWER GREEN RIVER Blacks Fork Jct 8869 .0 -M * 2.6 -M * Buck Pasture 9632 1.6 -M * 5.0 -M * EF Blacks Fork GS 9360 1.2 -M * 2.9 -M * Hams Fork 7840 .7 1.2 58 2.8 2.6 108 Hewinta 9500 .1 1.3 8 3.0 3.5 86 Hickerson Park 9122 1.2 1.3 92 3.9 3.1 126 Hole-in-Rock 9168 .4 1.1 36 3.3 3.0 110 Indian Creek 9425 1.8 4.2 43 2.9 4.4 66 Kelley R.S. 8180 -M 2.0 * -M 3.6 * Spirit Lk 10235 2.7 -M * 5.3 -M * Steel Creek Park 10158 1.8 3.0 60 3.8 4.1 93 ----- ----- Basin Index (%) 50 95 UPPER BEAR RIVER Bear River RS 8777 .2 -M * 3.3 -M * Bug Lake 7987 .5 2.2 23 4.5 4.0 112 Burts Miller Ranch 8000 1.3 -M * 1.9 -M * Chalk Creek #1 9171 .8 3.5 23 6.4 5.6 114 Hayden Fork 9130 .6 1.9 32 4.9 4.6 107 Kelley R.S. 8180 -M 2.0 * -M 3.6 * Lily Lake 9133 .4 1.9 21 3.6 4.2 86 Monte Cristo 8932 1.0 2.8 36 4.1 5.2 79 Salt River Summit 7640 .6 1.0 60* 2.8 3.2 88 ----- ----- Basin Index (%) 29 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.