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 THURSDAY: FEBRUARY 14 , 2019 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 12.8 12.4 103 14.8 15.3 97 Black Bear 8170 26.3 26.9 98 27.1 27.3 99 Blind Bull Sum 8650 14.1 15.7 90 11.9 14.2 84 Cottonwood Creek 7670 14.4 14.5 99 17.2 17.5 98 East Rim Divide 7930 7.1 7.2 99 7.4 8.4 88 Grand Targhee 9260 31.0 26.0 119 24.0 22.9 105 Granite Creek 6770 12.3 12.1 102 13.7 14.8 93 Grassy Lake 7265 21.1 23.5 90 24.7 26.4 94 Gros Ventre Summit 8750 6.2 8.9 70 7.3 8.9 82 Gunsight Pass 9820 8.4 9.2 91 10.6 9.8 108 Lewis Lake Divide 7850 20.8 22.8 91 22.7 25.6 89 Phillips Bench 8200 18.5 17.6 105 20.9 20.1 104 Salt River Summit 7640 8.7 9.0 97 10.8 11.8 92 Snake River Station 6920 12.8 12.9 99 17.6 16.9 104 Spring Creek Divide 9000 15.4 16.2 95 16.6 17.1 97 Thumb Divide 7980 10.9 10.4 105 12.4 13.2 94 Togwotee Pass 9580 16.4 16.3 101 17.2 17.4 99 Two Ocean Plateau 9240 19.7 19.3 102 16.7 19.3 87 Willow Creek 8080 18.3 19.0 96 22.3 23.8 94 Younts Peak 8350 -M 10.6 * -M 11.4 * ----- ----- Basin Index (%) 98 96 MADISON-GALLATIN Black Bear 8170 26.3 26.9 98 27.1 27.3 99 Canyon 7870 8.7 9.2 95 10.4 11.8 88 Madison Plateau 7750 16.2 15.5 105 16.6 18.9 88 West Yellowstone 6700 9.1 7.5 121 -M 10.6 * Whiskey Creek 6800 11.1 10.5 106 11.8 14.5 81 ----- ----- Basin Index (%) 103 91 YELLOWSTONE Beartooth Lake 9360 12.2 15.2 80 11.1 14.2 78 Burnt Mtn 5880 5.5 3.3 167 9.9 8.5 116 Canyon 7870 8.7 9.2 95 10.4 11.8 88 Cole Creek 7850 11.5 8.8 131 -M 8.3 * Evening Star 9200 17.4 17.3 101 20.2 19.8 102 Fisher Creek 9100 19.2 22.7 85 22.6 22.8 99 Northeast Entrance 7350 7.2 7.2 100 9.6 9.0 107 Parker Peak 9400 15.6 13.9 112 16.2 12.5 130 Sylvan Lake 8420 14.0 13.9 101 19.2 16.2 119 Thumb Divide 7980 10.9 10.4 105 12.4 13.2 94 Two Ocean Plateau 9240 19.7 19.3 102 16.7 19.3 87 White Mill 8700 14.2 16.1 88 12.4 17.0 73 Wolverine 7650 7.9 7.8 101 8.5 9.0 94 Younts Peak 8350 -M 10.6 * -M 11.4 * ----- ----- Basin Index (%) 99 98 WIND RIVER Burroughs Creek 8750 6.1 -M * 7.8 -M * Castle Creek 8400 2.9 -M * 4.2 -M * Cold Springs 9630 5.0 5.0 100 5.3 6.6 80 Deer Park 9700 11.4 9.6 119 12.2 13.6 90 Hobbs Park 10100 10.0 8.4 119 7.5 8.5 88 Kirwin 9550 6.5 6.2 105 6.5 7.9 82 Little Warm 9370 5.6 7.1 79 5.9 8.9 66 Owl Creek 8975 4.0 3.2 125 4.6 3.8 121 South Pass 9040 9.8 10.0 98 8.4 11.9 71 St. Lawrence Alt 8620 3.4 4.5 76 6.4 5.7 112 Togwotee Pass 9580 16.4 16.3 101 17.2 17.4 99 Townsend Creek 8700 6.9 5.8 119 7.5 7.7 97 ----- ----- Basin Index (%) 104 89 BIGHORN BASIN Bald Mtn. 9380 12.9 12.6 102 8.8 11.7 75 Bear Trap Meadow 8200 5.9 3.8 155 5.5 5.5 100 Bone Springs Div 9350 9.5 10.6 90 8.3 10.5 79 Grave Springs 8550 5.4 5.5 98 6.7 7.1 94 Kirwin 9550 6.5 6.2 105 6.5 7.9 82 Marquette 8760 5.7 -M * 7.2 -M * Middle Powder 7760 6.9 7.0 99 4.2 7.9 53 Owl Creek 8975 4.0 3.2 125 4.6 3.8 121 Powder River Pass 9480 7.3 7.1 103 6.8 8.5 80 Shell Creek 9580 -M 10.0 * -M 9.6 * Timber Creek 7950 2.9 3.1 94 4.6 4.8 96 ----- ----- Basin Index (%) 104 83 SHOSHONE RIVER Blackwater 9780 15.3 15.4 99 16.1 14.4 112 Evening Star 9200 17.4 17.3 101 20.2 19.8 102 Marquette 8760 5.7 -M * 7.2 -M * Sylvan Lake 8420 14.0 13.9 101 19.2 16.2 119 Sylvan Road 7120 8.1 8.6 94 11.2 12.8 88 Younts Peak 8350 -M 10.6 * -M 11.4 * ----- ----- Basin Index (%) 99 106 POWDER RIVER Bear Trap Meadow 8200 5.9 3.8 155 5.5 5.5 100 Cloud Peak Reservoir 9860 9.0 9.4 96 8.1 8.6 94 Grave Springs 8550 5.4 5.5 98 6.7 7.1 94 Hansen Sawmill 8360 4.0 4.3 93 5.5 5.4 102 Middle Powder 7760 6.9 7.0 99 4.2 7.9 53 Powder River Pass 9480 7.3 7.1 103 6.8 8.5 80 Soldier Park 8720 3.2 -M * 5.3 -M * ----- ----- Basin Index (%) 104 86 TONGUE RIVER Big Goose 7990 5.6 5.6 100 7.3 7.2 101 Bone Springs Div 9350 9.5 10.6 90 8.3 10.5 79 Burgess Junction 7880 6.1 7.3 84 6.7 8.1 83 Dome Lake 8880 5.8 7.6 76 5.9 9.0 66 Little Goose 8870 6.7 -M * 5.9 -M * Sucker Creek 8880 8.0 7.8 103 7.7 9.5 81 Tie Creek 6870 3.3 3.8 87 7.6 7.6 100 ----- ----- Basin Index (%) 90 84 BELLE FOURCHE Blind Park 6890 6.3 5.5 115 5.8 8.4 69 Cole Canyon 5910 4.9 4.3 114 8.6 6.5 132 ----- ----- Basin Index (%) 114 97 CHEYENNE RIVER BASIN Blind Park 6890 6.3 5.5 115 5.8 8.4 69 North Rapid Creek 6130 5.0 5.2 96 5.2 6.9 75 ----- ----- Basin Index (%) 106 72 UPPER N. PLATTE Arapaho Ridge 10960 16.5 14.5 114 17.3 15.8 109 Blackhall Mtn 9820 20.7 -M * 22.8 -M * Columbine 9160 18.7 16.9 111 19.7 18.2 108 Divide Peak 8880 13.8 13.9 99 16.3 15.1 108 Joe Wright 10120 13.8 14.1 98 20.9 17.7 118 Laprele Creek 8375 8.6 6.3 137 9.4 8.3 113 Med Bow 10500 24.9 -M * 23.7 -M * Never Summer 10280 14.7 13.8 107 12.9 -M * North French Creek 10130 19.7 18.6 106 21.0 18.7 112 Old Battle 10000 23.3 21.5 108 24.8 24.9 100 Rawah 9020 8.1 7.2 112 11.2 9.7 115 Sage Creek Basin 7850 13.0 9.3 140 12.6 10.8 117 Sand Lake 10050 19.0 18.2 104 15.9 16.7 95 South Brush Creek 8440 7.6 8.0 95 8.5 10.4 82 Tower 10500 33.8 31.7 107 30.3 28.3 107 Webber Springs 9250 16.4 16.2 101 20.6 18.7 110 Whiskey Park 8950 18.9 18.5 102 22.4 20.0 112 Willow Creek Pass 9540 9.7 8.4 115 11.6 9.1 127 Zirkel 9340 20.7 20.4 101 25.2 21.0 120 ----- ----- Basin Index (%) 107 109 SWEETWATER Deer Park 9700 11.4 9.6 119 12.2 13.6 90 Larsen Creek 9000 7.7 8.3 93 10.7 -M * South Pass 9040 9.8 10.0 98 8.4 11.9 71 ----- ----- Basin Index (%) 104 81 LOWER N. PLATTE Casper Mtn. 7900 10.1 8.5 119 8.6 9.9 87 Laprele Creek 8375 8.6 6.3 137 9.4 8.3 113 Reno Hill 8400 10.7 8.5 126 11.5 9.9 116 Windy Peak 7900 6.5 4.9 133 6.9 7.0 99 ----- ----- Basin Index (%) 127 104 LARAMIE RIVER Brooklyn Lake 10240 15.2 13.5 113 16.8 14.2 118 Cinnabar Park 9574 14.1 15.3 92 16.6 17.8 93 Crow Creek 8330 2.9 6.1 48 6.5 7.0 93 Deadman Hill 10220 13.0 11.2 116 12.2 11.3 108 Rawah 9020 8.1 7.2 112 11.2 9.7 115 Roach 9700 10.9 11.2 97 13.5 13.0 104 Windy Peak 7900 6.5 4.9 133 6.9 7.0 99 ----- ----- Basin Index (%) 102 105 S. PLATTE Black Mountain 8920 7.0 -M * 7.9 -M * Crow Creek 8330 2.9 6.1 48 6.5 7.0 93 Deadman Hill 10220 13.0 11.2 116 12.2 11.3 108 ----- ----- Basin Index (%) 92 102 LITTLE SNAKE RIVER Battle Mountain 7440 9.5 8.3 114 -M 10.8 * Divide Peak 8880 13.8 13.9 99 16.3 15.1 108 Elk River 8700 13.3 13.3 100 12.7 14.2 89 Little Snake River 8915 17.6 17.8 99 26.3 22.8 115 Old Battle 10000 23.3 21.5 108 24.8 24.9 100 Sage Creek Basin 7850 13.0 9.3 140 12.6 10.8 117 Sandstone RS 8150 11.2 9.5 118 12.4 13.4 93 Whiskey Park 8950 18.9 18.5 102 22.4 20.0 112 ----- ----- Basin Index (%) 108 105 UPPER GREEN RIVER Big Sandy Opening 9080 9.5 8.8 108 10.5 9.2 114 Blind Bull Sum 8650 14.1 15.7 90 11.9 14.2 84 East Rim Divide 7930 7.1 7.2 99 7.4 8.4 88 Elkhart Park G.S. 9400 8.1 8.3 98 9.1 9.3 98 Gros Ventre Summit 8750 6.2 8.9 70 7.3 8.9 82 Gunsight Pass 9820 8.4 9.2 91 10.6 9.8 108 Indian Creek 9425 14.3 16.2 88 11.8 15.6 76 Kendall R.S. 7740 7.5 8.7 86 8.1 10.2 79 Loomis Park 8240 10.3 10.5 98 11.5 12.3 93 New Fork Lake 8340 6.7 7.4 91 6.4 7.7 83 Pocket Creek 9360 10.2 -M * 11.1 -M * Snyder Basin 8060 8.1 8.8 92 9.9 10.2 97 Spring Creek Divide 9000 15.4 16.2 95 16.6 17.1 97 Triple Peak 8500 15.2 15.3 99 17.4 17.7 98 ----- ----- Basin Index (%) 93 92 LOWER GREEN RIVER Blacks Fork Jct 8869 6.3 -M * 9.0 -M * Buck Pasture 9632 11.0 -M * 13.6 -M * EF Blacks Fork GS 9360 8.4 -M * 7.4 -M * Hams Fork 7840 7.4 8.2 90 7.9 8.1 98 Hewinta 9500 7.0 6.8 103 10.1 9.6 105 Hickerson Park 9122 5.7 4.8 119 8.0 6.8 118 Hole-in-Rock 9168 4.2 4.6 91 7.3 6.3 116 Indian Creek 9425 14.3 16.2 88 11.8 15.6 76 Kelley R.S. 8180 9.6 10.1 95 10.4 12.8 81 Spirit Lk 10235 11.1 -M * 11.4 -M * Steel Creek Park 10158 10.4 10.0 104 12.6 11.0 115 ----- ----- Basin Index (%) 97 97 UPPER BEAR RIVER Bear River RS 8777 7.4 -M * 10.4 -M * Bug Lake 7987 14.6 12.8 114 16.4 13.7 120 Burts Miller Ranch 8000 4.5 -M * 6.2 -M * Chalk Creek #1 9171 17.1 15.5 110 20.5 17.3 118 Hayden Fork 9130 12.0 10.3 117 16.8 14.5 116 Kelley R.S. 8180 9.6 10.1 95 10.4 12.8 81 Lily Lake 9133 8.7 8.6 101 11.6 11.8 98 Monte Cristo 8932 21.0 18.2 115 19.8 18.0 110 Salt River Summit 7640 8.7 9.0 97 10.8 11.8 92 Spring Creek Divide 9000 15.4 16.2 95 16.6 17.1 97 ----- ----- Basin Index (%) 106 105 ----------------------------------------------------------------------------- -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.