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 WEDNESDAY: APRIL 19 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 21.8 12.0 182 40.3 21.7 186 Black Bear 8170 48.2 36.8 131 56.1 39.6 142 Blind Bull Sum 8650 44.3 24.0 185 -M 20.1 * Cottonwood Creek 7670 27.1 18.8 144 39.8 25.7 155 East Rim Divide 7930 12.7 9.6 132 21.5 12.2 176 Grand Targhee 9260 49.7 41.9 119 44.4 32.4 137 Granite Creek 6770 23.5 11.1 212 36.6 20.2 181 Grassy Lake 7265 37.8 31.5 120 57.1 37.2 153 Gros Ventre Summit 8750 20.6 13.2 156 25.0 13.6 184 Gunsight Pass 9820 23.7 13.6 174 25.9 14.8 175 Lewis Lake Divide 7850 46.6 30.3 154 57.2 36.6 156 Phillips Bench 8200 38.5 25.7 150 47.7 29.0 164 Salt River Summit 7760 18.1 10.0 181 29.9 17.3 173 Snake River Station 6920 15.8 11.5 137 37.2 23.4 159 Spring Creek Divide 9000 42.0 23.5 179 41.4 24.6 168 Thumb Divide 7980 21.5 14.5 148 29.0 19.6 148 Togwotee Pass 9580 34.2 23.7 144 39.9 25.5 156 Two Ocean Plateau 9240 -M 27.9 * -M 28.4 * Willow Creek 8380 27.9 26.8 104 52.1 35.1 148 Younts Peak 8350 25.3 15.1 168 32.0 16.6 193 ----- ----- Basin Index (%) 147 160 MADISON-GALLATIN Black Bear 8170 48.2 36.8 131 56.1 39.6 142 Canyon 7870 17.8 12.3 145 26.4 16.9 156 Madison Plateau 7750 28.2 22.9 123 37.8 27.4 138 West Yellowstone 6700 3.0 7.8 38 24.1 15.0 161 Whiskey Creek 6800 13.1 15.2 86 27.7 21.1 131 ----- ----- Basin Index (%) 116 143 YELLOWSTONE Beartooth Lake 9360 33.7 23.2 145 28.8 20.6 140 Burnt Mtn 5880 .1 .0 * 15.0 14.1 106 Canyon 7870 17.8 12.3 145 26.4 16.9 156 Cole Creek 7850 11.9 16.1 74 9.5 14.4 66 Evening Star 9200 39.2 24.9 157 46.1 28.6 161 Fisher Creek 9100 44.6 32.3 138 48.8 33.2 147 Northeast Entrance 7350 4.5 7.0 64 21.1 12.9 164 Parker Peak 9400 37.8 20.8 182 35.8 18.6 192 Sylvan Lake 8420 24.8 20.4 122 38.8 23.4 166 Thumb Divide 7980 21.5 14.5 148 29.0 19.6 148 Two Ocean Plateau 9240 -M 27.9 * -M 28.4 * White Mill 8700 37.9 23.6 161 37.1 24.8 150 Wolverine 7650 3.5 7.5 47 21.5 12.8 168 ----- ----- Basin Index (%) 137 149 WIND RIVER Burroughs Creek 8750 21.4 -M * 28.1 -M * Castle Creek 8400 8.4 -M * 16.1 -M * Cold Springs 9630 15.9 4.9 324 20.5 10.8 190 Deer Park 9700 33.2 16.2 205 39.2 21.3 184 Hobbs Park 10100 30.3 14.8 205 29.4 14.7 200 Kirwin 9550 23.0 10.0 230 26.0 12.3 211 Little Warm 9370 18.8 10.2 184 25.5 13.8 185 Owl Creek 8975 8.7 4.2 207 13.5 6.7 201 South Pass 9040 31.7 15.6 203 29.3 18.5 158 St. Lawrence Alt 8620 8.0 5.4 148 17.9 9.8 183 Togwotee Pass 9580 34.2 23.7 144 39.9 25.5 156 Townsend Creek 8700 17.6 9.6 183 23.9 13.1 182 ----- ----- Basin Index (%) 193 181 BIGHORN BASIN Bald Mtn. 9380 20.7 19.7 105 18.1 18.1 100 Bear Trap Meadow 8200 3.6 3.5 103 9.7 9.3 104 Bone Springs Div 9350 20.8 16.2 128 19.0 16.6 114 Grave Springs 8550 7.0 9.6 73 8.8 11.5 77 Kirwin 9550 23.0 10.0 230 26.0 12.3 211 Marquette 8760 14.3 -M * 18.2 -M * Middle Powder 7760 8.6 12.5 69 8.6 12.7 68 Owl Creek 8975 8.7 4.2 207 13.5 6.7 201 Powder River Pass 9480 8.9 10.2 87 14.6 13.6 107 Shell Creek 9580 18.5 15.3 121 16.1 14.8 109 Timber Creek 7950 6.7 4.9 137 11.9 8.4 142 ----- ----- Basin Index (%) 119 118 SHOSHONE RIVER Blackwater 9780 39.2 23.8 165 43.5 21.7 200 Evening Star 9200 39.2 24.9 157 46.1 28.6 161 Marquette 8760 14.3 -M * 18.2 -M * Sylvan Road 7120 1.4 10.0 14 31.3 17.5 179 Younts Peak 8350 25.3 15.1 168 32.0 16.6 193 ----- ----- Basin Index (%) 142 181 POWDER RIVER Bear Trap Meadow 8200 3.6 3.5 103 9.7 9.3 104 Cloud Peak Reservoir 9860 16.7 15.7 106 20.4 14.7 139 Grave Springs 8550 7.0 9.6 73 8.8 11.5 77 Hansen Sawmill 8360 11.1 5.0 222 15.7 9.5 165 Middle Powder 7760 8.6 12.5 69 8.6 12.7 68 Powder River Pass 9480 8.9 10.2 87 14.6 13.6 107 Soldier Park 8720 14.5 -M * 15.8 -M * ----- ----- Basin Index (%) 99 109 TONGUE RIVER Big Goose 7990 11.8 9.4 126 15.3 12.5 122 Bone Springs Div 9350 20.8 16.2 128 19.0 16.6 114 Burgess Junction 7880 10.9 12.4 88 13.0 13.4 97 Dome Lake 8880 16.6 11.8 141 17.8 14.8 120 Little Goose 8870 14.3 -M * 18.8 -M * Sucker Creek 8880 13.2 12.7 104 15.2 15.6 97 Tie Creek 6870 .2 4.5 4 14.5 12.7 114 ----- ----- Basin Index (%) 110 111 BELLE FOURCHE Cole Canyon 5910 .0 2.2 0 8.0 10.3 78 ----- ----- Basin Index (%) 0 78 CHEYENNE RIVER BASIN Blind Park 6890 .1 4.2 2 9.9 12.8 77 North Rapid Creek 6130 .0 4.4 0 8.3 10.6 78 ----- ----- Basin Index (%) 1 78 UPPER N. PLATTE Arapaho Ridge 10960 23.4 21.4 109 26.4 24.3 109 Blackhall Mtn 9820 34.2 -M * 38.2 -M * Columbine 9160 11.6 20.7 56 27.9 26.8 104 Divide Peak 8880 11.2 19.1 59 23.4 22.7 103 Joe Wright 10120 15.5 22.2 70 28.8 27.6 104 Laprele Creek 8375 6.4 8.3 77 12.8 13.5 95 Med Bow 10500 34.8 -M * 35.7 -M * North French Creek 10130 23.2 32.0 72 28.0 28.3 99 Never Summer 10280 21.9 20.6 106 19.6 -M * Old Battle 10000 36.2 32.5 111 38.9 36.8 106 Rawah 9020 4.1 8.6 48 17.5 15.5 113 Sage Creek Basin 7850 -M 6.6 * 16.9 15.2 111 Sand Lake 10050 29.9 30.4 98 28.1 26.6 106 South Brush Creek 8440 -M 9.9 * 13.2 16.3 81 Tower 10500 37.3 47.8 78 44.3 41.8 106 Webber Springs 9250 22.4 22.3 100 33.8 28.2 120 Willow Creek Pass 9540 17.7 12.9 137 18.6 14.3 130 Zirkel 9340 24.1 22.8 106 42.5 29.7 143 ----- ----- Basin Index (%) 89 109 SWEETWATER Deer Park 9700 33.2 16.2 205 39.2 21.3 184 Larsen Creek 9000 13.2 10.4 127 24.1 -M * South Pass 9040 31.7 15.6 203 29.3 18.5 158 ----- ----- Basin Index (%) 185 172 LOWER N. PLATTE Casper Mtn. 7900 9.6 14.5 66 13.8 16.4 84 Laprele Creek 8375 6.4 8.3 77 12.8 13.5 95 Reno Hill 8400 11.7 14.0 84 15.4 16.9 91 Windy Peak 7900 4.3 6.7 64 12.0 11.5 104 ----- ----- Basin Index (%) 74 93 LARAMIE RIVER Brooklyn Lake 10240 20.0 22.1 90 23.6 22.6 104 Cinnabar Park 9574 12.8 20.3 63 22.6 25.3 89 Crow Creek 8330 .0 1.1 0 9.3 12.0 78 Deadman Hill 10220 19.7 16.8 117 20.8 18.7 111 Rawah 9020 4.1 8.6 48 17.5 15.5 113 Roach 9700 14.5 16.5 88 21.6 20.4 106 ----- ----- Basin Index (%) 83 101 S. PLATTE Black Mountain 8920 8.0 -M * 13.3 -M * Crow Creek 8330 .0 1.1 0 9.3 12.0 78 Deadman Hill 10220 19.7 16.8 117 20.8 18.7 111 ----- ----- Basin Index (%) 110 98 LITTLE SNAKE RIVER Battle Mountain 7440 .0 4.9 0 17.1 16.0 107 Divide Peak 8880 11.2 19.1 59 23.4 22.7 103 Elk River 8700 5.6 15.8 35 20.4 21.1 97 Little Snake River 8915 20.9 24.7 85 39.3 31.2 126 Old Battle 10000 36.2 32.5 111 38.9 36.8 106 Sage Creek Basin 7850 -M 6.6 * 16.9 15.2 111 Sandstone RS 8150 -M 10.4 * 16.3 19.4 84 Whiskey Park 8950 21.2 26.0 82 30.7 29.5 104 ----- ----- Basin Index (%) 77 106 UPPER GREEN RIVER Big Sandy Opening 9080 21.7 12.7 171 24.2 14.0 173 Blind Bull Sum 8650 44.3 24.0 185 -M 20.1 * East Rim Divide 7930 12.7 9.6 132 21.5 12.2 176 Elkhart Park G.S. 9400 20.0 11.9 168 25.1 14.0 179 Gros Ventre Summit 8750 20.6 13.2 156 25.0 13.6 184 Gunsight Pass 9820 23.7 13.6 174 25.9 14.8 175 Kendall R.S. 7740 16.6 8.8 189 29.6 14.7 201 Loomis Park 8240 25.2 13.1 192 32.8 17.9 183 New Fork Lake 8340 13.3 9.0 148 18.5 11.2 165 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 16.5 10.9 151 28.1 14.7 191 Spring Creek Divide 9000 42.0 23.5 179 41.4 24.6 168 Triple Peak 8500 35.5 19.3 184 42.0 26.2 160 ----- ----- Basin Index (%) 172 177 LOWER GREEN RIVER Blacks Fork Jct 8869 5.0 -M * 16.7 -M * Buck Pasture 9632 15.4 -M * 24.4 -M * EF Blacks Fork GS 9360 11.6 -M * 18.4 -M * Hams Fork 7840 10.9 7.1 154 22.5 11.9 189 Hewinta 9500 6.4 8.3 77 18.4 14.9 123 Hickerson Park 9122 6.1 5.6 109 13.6 11.0 124 Hole-in-Rock 9168 5.5 6.0 92 14.3 10.5 136 Indian Creek 9425 40.8 23.2 176 42.3 23.5 180 Kelley R.S. 8180 24.6 12.9 191 31.6 18.8 168 Spirit Lk 10235 15.5 -M * 19.5 -M * Steel Creek Park 10158 19.7 16.2 122 22.2 17.6 126 ----- ----- Basin Index (%) 144 152 UPPER BEAR RIVER Bear River RS 8777 3.1 -M * 19.5 -M * Bug Lake 7987 32.1 17.6 182 35.5 20.2 176 Burts Miller Ranch 8000 .5 -M * 10.9 -M * Chalk Creek #1 9171 32.1 24.7 130 37.6 26.6 141 Hayden Fork 9130 13.5 12.2 111 30.9 22.3 139 Kelley R.S. 8180 24.6 12.9 191 31.6 18.8 168 Lily Lake 9133 11.5 11.0 105 21.0 18.2 115 Monte Cristo 8932 36.2 27.6 131 41.1 27.2 151 Salt River Summit 7760 18.1 10.0 181 29.9 17.3 173 ----- ----- Basin Index (%) 145 151 ----------------------------------------------------------------------------- -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.