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: FEBRUARY 4 , 2018 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 12.6 10.9 116 14.1 14.3 99 Black Bear 8170 27.6 23.5 117 26.5 25.4 104 Blind Bull Sum 8650 21.9 14.3 153 13.4 13.2 102 Cottonwood Creek 7670 14.1 13.4 105 16.2 16.3 99 East Rim Divide 7930 7.8 6.9 113 7.8 7.9 99 Grand Targhee 9260 32.8 24.0 137 20.7 21.1 98 Granite Creek 6770 11.4 10.9 105 14.0 13.9 101 Grassy Lake 7265 20.3 20.9 97 23.9 24.5 98 Gros Ventre Summit 8750 9.8 8.6 114 9.2 8.4 110 Gunsight Pass 9820 10.2 8.4 121 10.4 9.1 114 Lewis Lake Divide 7850 24.0 20.3 118 26.2 23.6 111 Phillips Bench 8200 15.3 16.0 96 16.5 18.7 88 Salt River Summit 7640 6.5 8.1 80 8.4 10.9 77 Snake River Station 6920 12.5 11.3 111 16.9 15.8 107 Spring Creek Divide 9000 17.0 14.9 114 16.4 15.8 104 Thumb Divide 7980 12.4 9.6 129 13.1 12.4 106 Togwotee Pass 9580 20.5 15.2 135 21.0 16.2 130 Two Ocean Plateau 9240 26.2 18.2 144 19.3 17.7 109 Willow Creek 8080 20.3 17.7 115 23.0 22.2 104 Younts Peak 8350 -M 9.9 * -M 10.7 * ----- ----- Basin Index (%) 118 103 MADISON-GALLATIN Black Bear 8170 27.6 23.5 117 26.5 25.4 104 Canyon 7870 11.4 8.4 136 13.2 11.0 120 Madison Plateau 7750 17.0 14.2 120 17.8 17.7 101 West Yellowstone 6700 8.7 7.1 123 11.4 9.9 115 Whiskey Creek 6800 10.3 9.7 106 12.1 13.5 90 ----- ----- Basin Index (%) 119 105 YELLOWSTONE Beartooth Lake 9360 26.2 14.2 185 23.9 13.2 181 Burnt Mtn 5880 3.6 2.5 144 9.2 8.1 114 Canyon 7870 11.4 8.4 136 13.2 11.0 120 Cole Creek 7850 9.4 8.6 109 6.0 7.8 77 Evening Star 9200 27.0 16.6 163 28.7 18.4 156 Fisher Creek 9100 35.3 21.1 167 30.0 21.3 141 Northeast Entrance 7350 8.2 6.6 124 11.8 8.5 139 Parker Peak 9400 22.7 13.3 171 19.7 11.6 170 Sylvan Lake 8420 16.1 13.3 121 18.1 15.2 119 Thumb Divide 7980 12.4 9.6 129 13.1 12.4 106 Two Ocean Plateau 9240 26.2 18.2 144 19.3 17.7 109 White Mill 8700 27.3 15.0 182 19.8 15.8 125 Wolverine 7650 12.7 7.2 176 14.7 8.4 175 ----- ----- Basin Index (%) 154 134 WIND RIVER Burroughs Creek 8750 10.3 -M * 12.2 -M * Castle Creek 8400 5.8 -M * 7.2 -M * Cold Springs 9630 6.4 4.7 136 6.7 6.3 106 Deer Park 9700 7.5 9.5 79 9.5 12.6 75 Hobbs Park 10100 11.2 8.0 140 9.5 8.0 119 Kirwin 9550 13.2 6.0 220 11.8 7.4 159 Little Warm 9370 11.0 6.5 169 11.1 8.4 132 Owl Creek 8975 2.9 3.1 94 4.6 3.6 128 South Pass 9040 7.5 9.5 79 5.3 11.2 47 St. Lawrence Alt 8620 2.6 4.2 62 6.1 5.4 113 Togwotee Pass 9580 20.5 15.2 135 21.0 16.2 130 Townsend Creek 8700 5.0 5.4 93 6.3 7.2 88 ----- ----- Basin Index (%) 122 106 BIGHORN BASIN Bald Mtn. 9380 13.4 11.0 122 8.8 10.9 81 Bear Trap Meadow 8200 5.7 3.5 163 6.5 5.2 125 Bone Springs Div 9350 11.8 9.9 119 8.9 9.8 91 Grave Springs 8550 4.4 5.0 88 3.7 6.6 56 Kirwin 9550 13.2 6.0 220 11.8 7.4 159 Marquette 8760 3.9 -M * 7.5 -M * Middle Powder 7760 5.7 6.4 89 -M 7.6 * Owl Creek 8975 2.9 3.1 94 4.6 3.6 128 Powder River Pass 9480 -M 6.7 * -M 8.0 * Shell Creek 9580 14.0 9.2 152 10.1 9.1 111 Timber Creek 7950 2.4 3.0 80 -M 4.6 * ----- ----- Basin Index (%) 129 103 SHOSHONE RIVER Blackwater 9780 23.7 14.9 159 21.6 13.5 160 Evening Star 9200 27.0 16.6 163 28.7 18.4 156 Marquette 8760 3.9 -M * 7.5 -M * Sylvan Road 7120 10.0 7.9 127 14.4 12.1 119 Younts Peak 8350 -M 9.9 * -M 10.7 * ----- ----- Basin Index (%) 154 147 POWDER RIVER Bear Trap Meadow 8200 5.7 3.5 163 6.5 5.2 125 Cloud Peak Reservoir 9860 10.0 8.5 118 8.9 8.0 111 Grave Springs 8550 4.4 5.0 88 3.7 6.6 56 Hansen Sawmill 8360 4.7 4.0 118 6.1 5.2 117 Middle Powder 7760 5.7 6.4 89 -M 7.6 * Powder River Pass 9480 -M 6.7 * -M 8.0 * Soldier Park 8720 3.1 -M * 6.0 -M * ----- ----- Basin Index (%) 111 101 TONGUE RIVER Big Goose 7990 4.3 5.0 86 4.8 6.7 72 Bone Springs Div 9350 11.8 9.9 119 8.9 9.8 91 Burgess Junction 7880 5.4 6.8 79 4.4 7.6 58 Dome Lake 8880 8.1 7.0 116 6.8 8.6 79 Little Goose 8870 5.4 -M * 7.3 -M * Sucker Creek 8880 6.1 7.2 85 -M 8.9 * Tie Creek 6870 2.1 3.4 62 -M 7.2 * ----- ----- Basin Index (%) 96 76 BELLE FOURCHE Cole Canyon 5910 4.1 3.3 124 5.6 5.8 97 ----- ----- Basin Index (%) 124 97 CHEYENNE RIVER BASIN Blind Park 6890 4.9 4.9 100 7.0 7.9 89 North Rapid Creek 6130 4.8 4.4 109 4.9 6.4 77 ----- ----- Basin Index (%) 104 83 UPPER N. PLATTE Arapaho Ridge 10960 -M 13.5 * -M 14.5 * Blackhall Mtn 9820 16.7 -M * 16.9 -M * Columbine 9160 12.9 15.0 86 15.3 16.8 91 Divide Peak 8880 8.7 12.7 69 12.1 14.0 86 Joe Wright 10120 10.3 13.2 78 18.4 16.4 112 Laprele Creek 8375 4.3 5.5 78 5.8 7.7 75 Med Bow 10500 27.4 -M * 23.2 -M * North French Creek 10130 18.1 16.3 111 18.4 17.3 106 Never Summer 10280 11.4 12.9 88 9.6 -M * Old Battle 10000 15.8 19.6 81 15.5 22.9 68 Rawah 9020 6.8 6.4 106 10.1 9.2 110 Sage Creek Basin 7850 6.0 8.7 69 7.3 10.0 73 Sand Lake 10050 17.3 16.8 103 14.1 15.4 92 South Brush Creek 8440 6.6 7.5 88 8.0 9.7 82 Tower 10500 20.0 28.2 71 20.7 26.1 79 Webber Springs 9250 11.5 14.4 80 13.7 17.4 79 Willow Creek Pass 9540 8.3 7.9 105 9.2 8.4 110 Zirkel 9340 14.6 19.0 77 19.3 19.6 98 ----- ----- Basin Index (%) 85 89 SWEETWATER Deer Park 9700 7.5 9.5 79 9.5 12.6 75 Larsen Creek 9000 5.6 7.5 75 7.6 -M * South Pass 9040 7.5 9.5 79 5.3 11.2 47 ----- ----- Basin Index (%) 78 62 LOWER N. PLATTE Casper Mtn. 7900 5.2 7.7 68 -M 9.2 * Laprele Creek 8375 4.3 5.5 78 5.8 7.7 75 Reno Hill 8400 6.6 7.8 85 7.6 9.2 83 Windy Peak 7900 4.1 4.3 95 5.6 6.5 86 ----- ----- Basin Index (%) 80 81 LARAMIE RIVER Brooklyn Lake 10240 16.1 12.1 133 16.7 13.2 127 Cinnabar Park 9574 -M 13.5 * -M 16.5 * Crow Creek 8330 1.9 5.7 33 7.5 6.5 115 Deadman Hill 10220 12.6 10.4 121 12.3 10.5 117 Rawah 9020 6.8 6.4 106 10.1 9.2 110 Roach 9700 9.1 10.2 89 11.7 12.1 97 ----- ----- Basin Index (%) 104 113 S. PLATTE Black Mountain 8920 6.0 -M * 8.6 -M * Crow Creek 8330 1.9 5.7 33 7.5 6.5 115 Deadman Hill 10220 12.6 10.4 121 12.3 10.5 117 ----- ----- Basin Index (%) 90 116 LITTLE SNAKE RIVER Battle Mountain 7440 3.3 7.2 46 6.6 9.9 67 Divide Peak 8880 8.7 12.7 69 12.1 14.0 86 Elk River 8700 8.7 11.7 74 10.0 13.1 76 Little Snake River 8915 12.7 16.0 79 17.9 21.3 84 Old Battle 10000 15.8 19.6 81 15.5 22.9 68 Sage Creek Basin 7850 6.0 8.7 69 7.3 10.0 73 Sandstone RS 8150 5.2 8.3 63 5.5 12.3 45 Whiskey Park 8950 13.7 16.6 83 16.4 18.3 90 ----- ----- Basin Index (%) 74 75 UPPER GREEN RIVER Big Sandy Opening 9080 8.5 8.5 100 8.6 8.5 101 Blind Bull Sum 8650 21.9 14.3 153 13.4 13.2 102 East Rim Divide 7930 7.8 6.9 113 7.8 7.9 99 Elkhart Park G.S. 9400 8.0 7.7 104 7.7 8.7 89 Gros Ventre Summit 8750 9.8 8.6 114 9.2 8.4 110 Gunsight Pass 9820 10.2 8.4 121 10.4 9.1 114 Kendall R.S. 7740 9.5 7.8 122 10.2 9.5 107 Loomis Park 8240 10.8 9.8 110 11.6 11.6 100 New Fork Lake 8340 7.8 6.8 115 6.9 7.2 96 Pocket Creek 9360 6.3 -M * 5.9 -M * Snider Basin 8060 8.1 7.8 104 9.7 9.5 102 Spring Creek Divide 9000 17.0 14.9 114 16.4 15.8 104 Triple Peak 8500 18.2 13.5 135 20.1 16.5 122 ----- ----- Basin Index (%) 120 105 LOWER GREEN RIVER Blacks Fork Jct 8869 4.7 -M * 5.9 -M * Buck Pasture 9632 -M -M * -M -M * EF Blacks Fork GS 9360 5.3 -M * 4.3 -M * Hams Fork 7840 5.5 7.4 74 5.9 7.4 80 Hewinta 9500 5.1 6.0 85 7.4 8.9 83 Hickerson Park 9122 4.5 3.9 115 4.1 6.3 65 Hole-in-Rock 9168 3.9 4.1 95 4.5 5.9 76 Indian Creek 9425 13.3 14.8 90 10.0 14.4 69 Kelley R.S. 8180 8.1 9.2 88 9.2 11.8 78 Spirit Lk 10235 5.0 -M * 5.9 -M * Steel Creek Park 10158 8.0 8.9 90 8.7 10.2 85 ----- ----- Basin Index (%) 89 77 UPPER BEAR RIVER Bear River RS 8777 5.5 -M * 6.9 -M * Bug Lake 7987 9.5 11.4 83 10.3 12.7 81 Burts Miller Ranch 8000 3.8 -M * 4.6 -M * Chalk Creek #1 9171 9.1 13.4 68 9.9 16.0 62 Hayden Fork 9130 7.6 8.8 86 9.7 13.5 72 Kelley R.S. 8180 8.1 9.2 88 9.2 11.8 78 Lily Lake 9133 6.8 7.5 91 7.2 11.0 65 Monte Cristo 8932 12.2 16.1 76 12.5 16.7 75 Salt River Summit 7640 6.5 8.1 80 8.4 10.9 77 ----- ----- Basin Index (%) 80 73 ----------------------------------------------------------------------------- -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.