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 FRIDAY: APRIL 15 , 2016 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 12.2 13.2 92 20.8 21.3 98 Black Bear 8170 30.3 36.6 83 35.5 39.0 91 Blind Bull Sum 8650 25.2 23.8 106 17.1 19.8 86 Cottonwood Creek 7670 19.8 19.8 100 27.3 25.2 108 East Rim Divide 7930 5.3 10.0 53 11.3 11.9 95 Grand Targhee 9260 42.8 41.0 104 33.0 32.0 103 Granite Creek 6770 10.7 12.3 87 18.1 19.9 91 Grassy Lake 7265 27.1 31.5 86 36.0 36.6 98 Gros Ventre Summit 8750 11.3 13.0 87 11.4 13.3 86 Gunsight Pass 9820 13.2 13.4 99 15.2 14.3 106 Lewis Lake Divide 7850 26.1 30.2 86 32.6 36.1 90 Phillips Bench 8200 21.9 26.0 84 27.1 28.6 95 Salt River Summit 7760 10.1 11.2 90 16.2 17.0 95 Snake River Station 6920 12.0 12.8 94 23.3 22.9 102 Spring Creek Divide 9000 25.7 23.2 111 24.3 24.3 100 Thumb Divide 7980 10.0 14.4 69 15.6 19.0 82 Togwotee Pass 9580 21.0 23.0 91 25.4 24.9 102 Two Ocean Plateau 9240 26.7 27.2 98 25.6 27.9 92 Willow Creek 8380 25.8 26.7 97 34.2 34.4 99 Younts Peak 8350 10.6 14.7 72 13.7 16.2 85 ----- ----- Basin Index (%) 91 96 MADISON-GALLATIN Black Bear 8170 30.3 36.6 83 35.5 39.0 91 Canyon 7870 9.4 12.4 76 13.4 16.6 81 Madison Plateau 7750 20.6 22.5 92 23.6 26.8 88 West Yellowstone 6700 5.5 8.2 67 14.2 14.4 99 Whiskey Creek 6800 12.0 14.8 81 17.4 20.6 84 ----- ----- Basin Index (%) 82 89 YELLOWSTONE Beartooth Lake 9360 17.6 22.4 79 17.9 20.3 88 Burnt Mtn 5880 .0 .2 0* 10.9 13.5 81 Canyon 7870 9.4 12.4 76 13.4 16.6 81 Cole Creek 7850 10.6 15.6 68 -M 14.0 * Evening Star 9200 24.6 24.7 100 28.5 28.1 101 Fisher Creek 9100 28.0 31.9 88 26.5 32.6 81 Northeast Entrance 7350 3.5 8.0 44 11.8 12.6 94 Parker Peak 9400 20.3 20.5 99 21.2 18.2 116 Sylvan Lake 8420 15.7 20.0 78 24.2 22.9 106 Thumb Divide 7980 10.0 14.4 69 15.6 19.0 82 Two Ocean Plateau 9240 26.7 27.2 98 25.6 27.9 92 White Mill 8700 22.4 23.5 95 22.1 24.4 91 Wolverine 7650 5.8 8.6 67 12.0 12.6 95 ----- ----- Basin Index (%) 85 92 WIND RIVER Burroughs Creek 8750 8.2 -M * 12.6 -M * Castle Creek 8400 .0 -M * 6.4 -M * Cold Springs 9630 7.2 5.8 124 10.0 10.4 96 Deer Park 9700 15.9 16.0 99 17.8 20.7 86 Hobbs Park 10100 15.6 14.9 105 15.5 14.2 109 Kirwin 9550 9.6 9.9 97 12.6 12.0 105 Little Warm 9370 8.5 10.2 83 11.7 13.4 87 Owl Creek 8975 2.1 5.1 41 5.4 6.4 84 South Pass 9040 13.2 15.8 84 13.1 18.0 73 St. Lawrence Alt 8620 4.0 6.4 62 9.5 9.4 101 Togwotee Pass 9580 21.0 23.0 91 25.4 24.9 102 Townsend Creek 8700 9.4 10.0 94 12.7 12.8 99 ----- ----- Basin Index (%) 91 94 BIGHORN BASIN Bald Mtn. 9380 14.9 19.4 77 12.2 17.7 69 Bear Trap Meadow 8200 4.0 4.4 91 6.6 9.1 73 Bone Springs Div 9350 11.5 16.8 68 11.2 16.2 69 Grave Springs 8550 6.4 9.6 67 6.3 11.2 56 Kirwin 9550 9.6 9.9 97 12.6 12.0 105 Marquette 8760 6.2 -M * 11.2 -M * Middle Powder 7760 8.8 12.4 71 7.9 12.4 64 Owl Creek 8975 2.1 5.1 41 5.4 6.4 84 Powder River Pass 9480 7.2 10.2 71 8.9 13.2 67 Shell Creek 9580 11.7 15.5 75 10.6 14.4 74 Timber Creek 7950 4.5 5.2 87 10.7 7.9 135 ----- ----- Basin Index (%) 74 77 SHOSHONE RIVER Blackwater 9780 22.8 23.7 96 25.4 21.3 119 Evening Star 9200 24.6 24.7 100 28.5 28.1 101 Marquette 8760 6.2 -M * 11.2 -M * Sylvan Road 7120 1.4 10.3 14 16.0 17.1 94 Younts Peak 8350 10.6 14.7 72 13.7 16.2 85 ----- ----- Basin Index (%) 81 101 POWDER RIVER Bear Trap Meadow 8200 4.0 4.4 91 6.6 9.1 73 Cloud Peak Reservoir 9860 10.0 15.4 65 12.5 14.2 88 Grave Springs 8550 6.4 9.6 67 6.3 11.2 56 Hansen Sawmill 8360 4.6 5.9 78 7.9 9.1 87 Middle Powder 7760 8.8 12.4 71 7.9 12.4 64 Powder River Pass 9480 7.2 10.2 71 8.9 13.2 67 Soldier Park 8720 .6 -M * 7.6 -M * ----- ----- Basin Index (%) 71 72 TONGUE RIVER Big Goose 7990 6.3 9.7 65 8.4 12.1 69 Bone Springs Div 9350 11.5 16.8 68 11.2 16.2 69 Burgess Junction 7880 8.3 12.1 69 9.4 13.0 72 Dome Lake 8880 7.5 12.0 62 9.4 14.3 66 Little Goose 8870 7.2 -M * 10.4 -M * Sucker Creek 8880 7.9 12.6 63 10.3 15.1 68 Tie Creek 6870 .0 4.8 0 8.8 12.3 72 ----- ----- Basin Index (%) 61 69 BELLE FOURCHE Cole Canyon 5910 .2 3.2 6 9.6 10.0 96 ----- ----- Basin Index (%) 6 96 CHEYENNE RIVER BASIN Blind Park 6890 .1 5.1 2 10.8 12.4 87 North Rapid Creek 6130 .0 5.5 0 8.5 10.4 82 ----- ----- Basin Index (%) 1 85 UPPER N. PLATTE Arapaho Ridge 10960 23.6 21.6 109 24.8 23.7 105 Blackhall Mtn 9820 31.4 -M * 30.6 -M * Columbine 9160 20.6 21.8 94 26.5 26.4 100 Divide Peak 8880 17.2 20.0 86 24.3 22.2 109 Joe Wright 10120 17.1 22.1 77 26.2 26.9 97 Laprele Creek 8375 7.3 9.0 81 11.6 13.2 88 Med Bow 10500 33.7 -M * 31.8 -M * North French Creek 10130 26.3 31.8 83 26.8 27.8 96 Never Summer 10280 20.9 20.5 102 18.1 -M * Old Battle 10000 30.8 32.2 96 29.1 36.2 80 Rawah 9020 11.0 9.6 115 18.8 15.0 125 Sage Creek Basin 7850 10.0 8.8 114 13.5 15.0 90 Sand Lake 10050 27.8 30.4 91 26.7 25.9 103 South Brush Creek 8440 8.6 10.9 79 15.1 15.9 95 Tower 10500 39.1 47.4 82 38.4 41.1 93 Webber Springs 9250 19.7 23.3 85 25.9 27.7 94 Willow Creek Pass 9540 16.1 12.7 127 16.4 14.0 117 Zirkel 9340 24.3 23.9 102 30.9 29.2 106 ----- ----- Basin Index (%) 93 99 SWEETWATER Deer Park 9700 15.9 16.0 99 17.8 20.7 86 Larsen Creek 9000 7.0 10.8 65 13.5 -M * South Pass 9040 13.2 15.8 84 13.1 18.0 73 ----- ----- Basin Index (%) 85 80 LOWER N. PLATTE Casper Mtn. 7900 15.4 14.4 107 15.3 16.0 96 Laprele Creek 8375 7.3 9.0 81 11.6 13.2 88 Reno Hill 8400 14.5 14.1 103 18.6 16.5 113 Windy Peak 7900 7.2 7.4 97 11.0 11.2 98 ----- ----- Basin Index (%) 99 99 LARAMIE RIVER Brooklyn Lake 10240 22.9 22.2 103 23.7 22.1 107 Cinnabar Park 9574 18.1 21.0 86 23.0 24.9 92 Crow Creek 8330 5.6 4.1 137 14.8 11.5 129 Deadman Hill 10220 20.4 16.5 124 20.1 18.2 110 Rawah 9020 11.0 9.6 115 18.8 15.0 125 Roach 9700 16.5 16.5 100 20.5 20.0 102 ----- ----- Basin Index (%) 105 108 S. PLATTE Black Mountain 8920 11.9 -M * 17.3 -M * Crow Creek 8330 5.6 4.1 137 14.8 11.5 129 Deadman Hill 10220 20.4 16.5 124 20.1 18.2 110 ----- ----- Basin Index (%) 126 118 LITTLE SNAKE RIVER Battle Mountain 7440 6.5 6.7 97 16.6 15.6 106 Divide Peak 8880 17.2 20.0 86 24.3 22.2 109 Elk River 8700 12.5 17.2 73 19.0 20.7 92 Little Snake River 8915 21.6 25.8 84 32.5 30.7 106 Old Battle 10000 30.8 32.2 96 29.1 36.2 80 Sage Creek Basin 7850 10.0 8.8 114 13.5 15.0 90 Sandstone RS 8150 7.7 11.8 65 12.7 19.0 67 Whiskey Park 8950 25.5 27.0 94 28.5 28.8 99 ----- ----- Basin Index (%) 88 94 UPPER GREEN RIVER Big Sandy Opening 9080 10.3 12.9 80 12.2 13.7 89 Blind Bull Sum 8650 25.2 23.8 106 17.1 19.8 86 East Rim Divide 7930 5.3 10.0 53 11.3 11.9 95 Elkhart Park G.S. 9400 8.6 12.0 72 11.8 13.7 86 Gros Ventre Summit 8750 11.3 13.0 87 11.4 13.3 86 Gunsight Pass 9820 13.2 13.4 99 15.2 14.3 106 Kendall R.S. 7740 -M 9.8 * 12.0 14.4 83 Loomis Park 8240 10.8 13.6 79 16.8 17.6 95 New Fork Lake 8340 5.9 9.6 61 11.3 11.0 103 Pocket Creek 9360 7.5 -M * 9.9 -M * Snider Basin 8060 10.7 11.6 92 14.4 14.5 99 Spring Creek Divide 9000 25.7 23.2 111 24.3 24.3 100 Triple Peak 8500 23.0 19.7 117 27.8 25.8 108 ----- ----- Basin Index (%) 92 96 LOWER GREEN RIVER Blacks Fork Jct 8870 9.1 -M * 12.6 -M * Buck Pasture 9700 11.0 -M * 17.7 -M * EF Blacks Fork GS 9360 7.7 -M * 11.3 -M * Hams Fork 7840 8.3 8.6 97 11.2 11.7 96 Hewinta 9519 7.0 9.7 72 14.0 14.5 97 Hickerson Park 9145 8.4 6.6 127 12.2 10.7 114 Hole-in-Rock 9150 5.3 6.8 78 12.5 10.2 123 Indian Creek 9425 22.0 23.9 92 19.2 23.1 83 Kelley R.S. 8180 12.0 13.7 88 16.1 18.5 87 Spirit Lk 10235 14.4 -M * 17.8 -M * Steel Creek Park 10200 16.9 16.1 105 19.4 17.2 113 ----- ----- Basin Index (%) 94 99 UPPER BEAR RIVER Bear River RS 8777 1.7 -M * 12.2 -M * Bug Lake 7950 16.2 19.0 85 20.3 19.9 102 Burts Miller Ranch 8000 .6 -M * 6.2 -M * Chalk Creek #1 8993 17.9 24.9 72 23.4 26.1 90 Hayden Fork 9212 8.4 13.9 60 19.6 21.8 90 Kelley R.S. 8180 12.0 13.7 88 16.1 18.5 87 Lily Lake 9156 9.9 12.4 80 14.6 17.8 82 Monte Cristo 8960 26.1 27.8 94 29.1 26.8 109 Salt River Summit 7760 10.1 11.2 90 16.2 17.0 95 ----- ----- Basin Index (%) 82 94 ----------------------------------------------------------------------------- -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.