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 FRIDAY: MARCH 31 , 2017 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 23.9 14.7 163 38.6 20.1 192 Black Bear 8170 44.8 36.0 124 52.0 36.4 143 Blind Bull Sum 8650 42.2 22.2 190 -M 18.7 * Cottonwood Creek 7670 26.6 21.1 126 36.5 23.5 155 East Rim Divide 7930 17.1 9.9 173 20.7 11.3 183 Grand Targhee 9260 43.4 36.1 120 38.9 29.1 134 Granite Creek 6770 27.4 14.9 184 35.3 19.0 186 Grassy Lake 7265 35.7 31.5 113 52.6 34.5 152 Gros Ventre Summit 8750 19.5 12.8 152 23.3 12.3 189 Gunsight Pass 9820 21.0 13.3 158 23.4 13.1 179 Lewis Lake Divide 7850 43.9 29.4 149 54.1 34.0 159 Phillips Bench 8200 36.5 24.0 152 45.3 27.0 168 Salt River Summit 7760 19.8 12.8 155 -M 15.9 * Snake River Station 6920 18.8 15.6 121 34.6 21.6 160 Spring Creek Divide 9000 39.3 22.5 175 39.0 22.8 171 Thumb Divide 7980 22.9 14.9 154 27.2 17.7 154 Togwotee Pass 9580 32.3 21.6 150 37.0 23.2 159 Two Ocean Plateau 9240 -M 25.5 * -M 26.1 * Willow Creek 8380 28.6 27.6 104 47.3 32.0 148 Younts Peak 8350 25.3 14.1 179 30.3 15.1 201 ----- ----- Basin Index (%) 144 162 MADISON-GALLATIN Black Bear 8170 44.8 36.0 124 52.0 36.4 143 Canyon 7870 17.2 12.3 140 24.9 15.5 161 Madison Plateau 7750 26.3 21.2 124 35.0 25.1 139 West Yellowstone 6700 8.3 10.2 81 22.4 13.5 166 Whiskey Creek 6800 13.5 14.9 91 25.9 19.3 134 ----- ----- Basin Index (%) 116 146 YELLOWSTONE Beartooth Lake 9360 31.4 20.9 150 26.7 18.8 142 Burnt Mtn 5880 .0 4.4 0 13.3 12.0 111 Canyon 7870 17.2 12.3 140 24.9 15.5 161 Cole Creek 7850 10.5 13.4 78 7.3 11.9 61 Evening Star 9200 37.2 23.9 156 43.6 26.0 168 Fisher Creek 9100 42.8 29.9 143 46.0 30.3 152 Northeast Entrance 7350 9.5 9.7 98 20.0 11.6 172 Parker Peak 9400 33.0 18.7 176 33.1 16.8 197 Sylvan Lake 8420 23.0 19.1 120 36.0 21.2 170 Thumb Divide 7980 22.9 14.9 154 27.2 17.7 154 Two Ocean Plateau 9240 -M 25.5 * -M 26.1 * White Mill 8700 34.9 21.5 162 35.1 22.6 155 Wolverine 7650 7.6 9.0 84 20.5 11.6 177 ----- ----- Basin Index (%) 137 154 WIND RIVER Burroughs Creek 8750 23.5 -M * 26.5 -M * Castle Creek 8400 10.7 -M * 14.9 -M * Cold Springs 9630 14.0 7.1 197 16.6 9.4 177 Deer Park 9700 30.2 14.6 207 35.3 18.5 191 Hobbs Park 10100 25.5 13.2 193 23.9 12.4 193 Kirwin 9550 20.9 9.4 222 22.9 11.0 208 Little Warm 9370 17.5 10.2 172 23.0 12.2 189 Owl Creek 8975 8.5 5.3 160 10.8 5.6 193 South Pass 9040 28.8 14.8 195 25.9 16.5 157 St. Lawrence Alt 8620 7.4 6.7 110 14.6 8.5 172 Togwotee Pass 9580 32.3 21.6 150 37.0 23.2 159 Townsend Creek 8700 15.2 8.9 171 19.1 11.2 171 ----- ----- Basin Index (%) 179 178 BIGHORN BASIN Bald Mtn. 9380 18.5 18.4 101 15.9 16.2 98 Bear Trap Meadow 8200 4.3 5.1 84 7.4 8.0 92 Bone Springs Div 9350 18.3 15.6 117 16.9 14.7 115 Grave Springs 8550 6.3 8.8 72 6.9 9.9 70 Kirwin 9550 20.9 9.4 222 22.9 11.0 208 Marquette 8760 9.6 -M * 13.7 -M * Middle Powder 7760 6.8 11.2 61 6.9 11.1 62 Owl Creek 8975 8.5 5.3 160 10.8 5.6 193 Powder River Pass 9480 8.0 9.9 81 11.8 11.9 99 Shell Creek 9580 16.3 14.4 113 13.4 13.1 102 Timber Creek 7950 6.0 4.7 128 9.3 6.9 135 ----- ----- Basin Index (%) 111 113 SHOSHONE RIVER Blackwater 9780 36.8 22.0 167 40.7 19.5 209 Evening Star 9200 37.2 23.9 156 43.6 26.0 168 Marquette 8760 9.6 -M * 13.7 -M * Sylvan Road 7120 9.3 11.1 84 29.9 16.0 187 Younts Peak 8350 25.3 14.1 179 30.3 15.1 201 ----- ----- Basin Index (%) 153 189 POWDER RIVER Bear Trap Meadow 8200 4.3 5.1 84 7.4 8.0 92 Cloud Peak Reservoir 9860 14.3 14.0 102 15.8 12.5 126 Grave Springs 8550 6.3 8.8 72 6.9 9.9 70 Hansen Sawmill 8360 9.9 6.3 157 12.4 8.0 155 Middle Powder 7760 6.8 11.2 61 6.9 11.1 62 Powder River Pass 9480 8.0 9.9 81 11.8 11.9 99 Soldier Park 8720 13.6 -M * 12.3 -M * ----- ----- Basin Index (%) 90 100 TONGUE RIVER Big Goose 7990 10.4 8.7 120 12.0 10.5 114 Bone Springs Div 9350 18.3 15.6 117 16.9 14.7 115 Burgess Junction 7880 9.7 11.2 87 10.7 11.6 92 Dome Lake 8880 14.8 11.4 130 14.7 12.8 115 Little Goose 8870 11.5 -M * 14.7 -M * Sucker Creek 8880 11.7 11.4 103 11.7 13.5 87 Tie Creek 6870 3.2 5.4 59 12.1 10.8 112 ----- ----- Basin Index (%) 107 106 BELLE FOURCHE Cole Canyon 5910 .0 5.8 0 7.1 8.7 82 ----- ----- Basin Index (%) 0 82 CHEYENNE RIVER BASIN Blind Park 6890 .0 7.2 0 8.3 11.2 74 North Rapid Creek 6130 .8 6.7 12 7.0 9.2 76 ----- ----- Basin Index (%) 6 75 UPPER N. PLATTE Arapaho Ridge 10960 24.2 19.6 123 25.1 21.1 119 Blackhall Mtn 9820 35.4 -M * 36.4 -M * Columbine 9160 19.4 22.6 86 26.6 24.3 109 Divide Peak 8880 15.6 19.4 80 21.6 20.4 106 Joe Wright 10120 17.8 20.1 89 27.1 24.5 111 Laprele Creek 8375 10.2 9.4 109 11.3 11.7 97 Med Bow 10500 37.0 -M * 33.9 -M * North French Creek 10130 23.7 27.8 85 26.3 25.5 103 Never Summer 10280 21.1 19.4 109 18.2 -M * Old Battle 10000 35.6 29.2 122 37.2 33.4 111 Rawah 9020 9.4 10.3 91 16.3 13.5 121 Sage Creek Basin 7850 7.0 12.6 56 15.7 13.7 115 Sand Lake 10050 29.8 27.3 109 26.6 23.4 114 South Brush Creek 8440 5.6 12.2 46 12.1 14.5 83 Tower 10500 39.3 43.6 90 42.3 37.9 112 Webber Springs 9250 25.5 22.8 112 32.4 25.4 128 Willow Creek Pass 9540 17.1 11.7 146 17.8 12.7 140 Zirkel 9340 33.3 26.3 127 40.9 27.1 151 ----- ----- Basin Index (%) 100 115 SWEETWATER Deer Park 9700 30.2 14.6 207 35.3 18.5 191 Larsen Creek 9000 17.0 12.1 140 22.6 -M * South Pass 9040 28.8 14.8 195 25.9 16.5 157 ----- ----- Basin Index (%) 183 175 LOWER N. PLATTE Casper Mtn. 7900 9.8 13.2 74 11.2 13.9 81 Laprele Creek 8375 10.2 9.4 109 11.3 11.7 97 Reno Hill 8400 11.6 13.0 89 13.0 14.4 90 Windy Peak 7900 8.1 7.8 104 10.9 10.0 109 ----- ----- Basin Index (%) 91 93 LARAMIE RIVER Brooklyn Lake 10240 22.4 19.7 114 22.2 20.0 111 Cinnabar Park 9574 17.0 19.8 86 21.5 22.9 94 Crow Creek 8330 .2 6.7 3 8.8 10.1 87 Deadman Hill 10220 20.1 15.4 131 19.5 16.3 120 Rawah 9020 9.4 10.3 91 16.3 13.5 121 Roach 9700 16.2 15.4 105 20.3 18.2 112 ----- ----- Basin Index (%) 98 108 S. PLATTE Black Mountain 8920 10.5 -M * 12.2 -M * Crow Creek 8330 .2 6.7 3 8.8 10.1 87 Deadman Hill 10220 20.1 15.4 131 19.5 16.3 120 ----- ----- Basin Index (%) 92 107 LITTLE SNAKE RIVER Battle Mountain 7440 -M 10.7 * 16.1 14.4 112 Divide Peak 8880 15.6 19.4 80 21.6 20.4 106 Elk River 8700 12.7 18.3 69 19.3 19.1 101 Little Snake River 8915 26.6 22.9 116 37.7 28.2 134 Old Battle 10000 35.6 29.2 122 37.2 33.4 111 Sage Creek Basin 7850 7.0 12.6 56 15.7 13.7 115 Sandstone RS 8150 7.6 13.1 58 15.9 17.6 90 Whiskey Park 8950 25.5 25.5 100 29.1 26.7 109 ----- ----- Basin Index (%) 93 111 UPPER GREEN RIVER Big Sandy Opening 9080 20.7 12.3 168 22.9 12.6 182 Blind Bull Sum 8650 42.2 22.2 190 -M 18.7 * East Rim Divide 7930 17.1 9.9 173 20.7 11.3 183 Elkhart Park G.S. 9400 18.8 12.0 157 23.7 12.7 187 Gros Ventre Summit 8750 19.5 12.8 152 23.3 12.3 189 Gunsight Pass 9820 21.0 13.3 158 23.4 13.1 179 Kendall R.S. 7740 20.7 11.4 182 28.6 13.7 209 Loomis Park 8240 26.6 14.4 185 31.6 16.6 190 New Fork Lake 8340 15.6 10.3 151 17.4 10.3 169 Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 18.6 12.1 154 26.4 13.6 194 Spring Creek Divide 9000 39.3 22.5 175 39.0 22.8 171 Triple Peak 8500 35.5 21.5 165 39.6 24.3 163 ----- ----- Basin Index (%) 169 182 LOWER GREEN RIVER Blacks Fork Jct 8869 9.1 -M * 15.5 -M * Buck Pasture 9632 17.5 -M * 22.9 -M * EF Blacks Fork GS 9360 15.1 -M * 16.6 -M * Hams Fork 7840 13.9 10.8 129 20.7 10.9 190 Hewinta 9500 8.5 10.8 79 16.8 13.3 126 Hickerson Park 9122 8.6 7.4 116 11.9 9.6 124 Hole-in-Rock 9168 6.9 7.0 99 12.7 9.1 140 Indian Creek 9425 39.4 23.7 166 -M 21.6 * Kelley R.S. 8180 25.0 14.8 169 29.8 17.3 172 Spirit Lk 10235 15.4 -M * 17.7 -M * Steel Creek Park 10158 18.2 15.1 121 20.2 15.5 130 ----- ----- Basin Index (%) 134 148 UPPER BEAR RIVER Bear River RS 8777 9.8 -M * 18.2 -M * Bug Lake 7987 30.8 18.0 171 32.6 18.5 176 Burts Miller Ranch 8000 3.6 -M * 10.0 -M * Chalk Creek #1 9171 33.4 23.2 144 34.6 24.0 144 Hayden Fork 9130 19.9 15.0 133 29.4 20.0 147 Kelley R.S. 8180 25.0 14.8 169 29.8 17.3 172 Lily Lake 9133 14.0 12.0 117 19.8 16.2 122 Monte Cristo 8932 34.3 26.0 132 37.3 24.8 150 Salt River Summit 7760 19.8 12.8 155 -M 15.9 * ----- ----- Basin Index (%) 145 152 ----------------------------------------------------------------------------- -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.