Water Resources Data System & State Climate Office

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: SEPTEMBER 10 , 2014 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7030 .0 .0 * 37.0 30.8 120 Black Bear 8170 .0 .0 * 58.1 53.3 109 Blind Bull Sum 8650 .0 .0 * 34.4 29.5 117 Cottonwood Creek 7670 .1 .0 * 49.7 37.5 133 East Rim Divide 7930 .0 .0 * 23.6 19.1 124 Grand Targhee 9260 .0 .0 * 54.6 46.6 117 Granite Creek 6770 .0 .0 * 34.7 28.7 121 Grassy Lake 7265 .1 .0 * 57.4 50.5 114 Gros Ventre Summit 8750 .0 .0 * 24.6 22.2 111 Gunsight Pass 9820 .0 .0 * 32.0 24.6 130 Lewis Lake Divide 7850 .0 .0 * 58.8 49.2 120 Phillips Bench 8200 .0 .0 * 47.4 40.0 118 Salt River Summit 7760 .0 .0 * 28.9 25.5 113 Snake River Station 6920 .0 .0 * 40.4 33.7 120 Spring Creek Divide 9000 .2 .0 * 43.8 34.4 127 Thumb Divide 7980 .1 .0 * 31.2 28.7 109 Togwotee Pass 9580 .1 .0 * 44.5 37.1 120 Two Ocean Plateau 9240 -M .0 * 48.4 41.6 116 Willow Creek 8380 .0 .0 * 57.8 49.9 116 Younts Peak 8350 -M .0 * -M 27.7 * ----- ----- Basin Index (%) * 118 MADISON-GALLATIN Black Bear 8170 .0 .0 * 58.1 53.3 109 Canyon 7870 .0 .0 * 27.2 26.6 102 Madison Plateau 7750 .0 .0 * 40.5 39.3 103 West Yellowstone 6700 .0 .0 * 28.0 23.2 121 Whiskey Creek 6800 .0 .0 * 34.3 31.7 108 ----- ----- Basin Index (%) * 108 YELLOWSTONE Beartooth Lake 9360 .0 .0 * 43.9 31.8 138 Burnt Mtn 5880 .0 .0 * 32.8 28.2 116 Canyon 7870 .0 .0 * 27.2 26.6 102 Cole Creek 7850 .0 .0 * 30.8 29.2 105 Evening Star 9200 .0 .0 * 57.0 43.1 132 Fisher Creek 9100 .0 .0 * 57.8 49.7 116 Northeast Entrance 7350 .0 .0 * 27.2 23.7 115 Parker Peak 9400 .0 .0 * 45.0 30.4 148 Sylvan Lake 8420 .0 .0 * 44.8 36.5 123 Thumb Divide 7980 .1 .0 * 31.2 28.7 109 Two Ocean Plateau 9240 -M .0 * 48.4 41.6 116 White Mill 8700 .0 .0 * 44.6 38.9 115 Wolverine 7650 .0 .0 * 28.3 22.2 127 ----- ----- Basin Index (%) * 121 WIND RIVER Burroughs Creek 8750 .0 .0 * 4.3 26.8 16 Castle Creek 8400 .0 -M * 21.9 -M * Cold Springs 9630 .0 .0 * 21.9 20.5 107 Deer Park 9700 .0 .0 * 30.5 33.5 91 Hobbs Park 10100 .0 .0 * 25.3 26.2 97 Kirwin 9550 .0 .0 * 28.3 24.6 115 Little Warm 9370 .0 .0 * 26.1 24.4 107 Owl Creek 8975 .0 .0 * 13.5 16.1 84 South Pass 9040 .0 .0 * 21.8 28.2 77 St. Lawrence Alt 8620 .0 .0 * 16.1 19.2 84 Togwotee Pass 9580 .1 .0 * 44.5 37.1 120 Townsend Creek 8700 .0 .0 * 18.8 23.1 81 ----- ----- Basin Index (%) * 90 BIGHORN BASIN Bald Mtn. 9380 .0 .0 * 33.9 30.2 112 Bear Trap Meadow 8200 .0 .0 * 24.8 19.3 128 Bone Springs Div 9350 .0 .0 * 30.9 29.4 105 Grave Springs 8550 .0 .0 * 22.4 21.5 104 Kirwin 9550 .0 .0 * 28.3 24.6 115 Marquette 8760 .0 -M * 23.9 -M * Middle Powder 7760 .0 .0 * 29.0 23.2 125 Owl Creek 8975 .0 .0 * 13.5 16.1 84 Powder River Pass 9480 .0 .0 * 30.7 25.1 122 Shell Creek 9580 .0 .0 * 31.0 26.6 117 Timber Creek 7950 .0 .0 * 21.1 19.8 107 ----- ----- Basin Index (%) * 113 SHOSHONE RIVER Blackwater 9780 .0 .0 * 44.0 34.6 127 Evening Star 9200 .0 .0 * 57.0 43.1 132 Marquette 8760 .0 -M * 23.9 -M * Sylvan Road 7120 .0 .0 * 33.2 27.2 122 Younts Peak 8350 -M .0 * -M 27.7 * ----- ----- Basin Index (%) * 128 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 24.8 19.3 128 Cloud Peak Reservoir 9860 .0 .0 * 35.5 28.6 124 Grave Springs 8550 .0 .0 * 22.4 21.5 104 Hansen Sawmill 8360 .0 .0 * 24.2 20.6 117 Middle Powder 7760 .0 .0 * 29.0 23.2 125 Powder River Pass 9480 .0 .0 * 30.7 25.1 122 Soldier Park 8720 .0 -M * 24.6 -M * ----- ----- Basin Index (%) * 120 TONGUE RIVER Big Goose 7990 .0 .0 * 26.4 23.2 114 Bone Springs Div 9350 .0 .0 * 30.9 29.4 105 Burgess Junction 7880 .0 .0 * 26.0 24.0 108 Dome Lake 8880 .0 .0 * 32.3 26.6 121 Little Goose 8870 .0 -M * 32.1 -M * Sucker Creek 8880 .0 .0 * 32.6 28.1 116 Tie Creek 6870 .0 .0 * 26.8 25.2 106 ----- ----- Basin Index (%) * 112 BELLE FOURCHE Cole Canyon 5910 .0 .0 * 26.0 24.2 107 ----- ----- Basin Index (%) * 107 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 30.3 26.4 115 North Rapid Creek 6130 .0 .0 * 31.1 25.8 121 ----- ----- Basin Index (%) * 118 UPPER N. PLATTE Arapaho Ridge 10960 .0 .0 * 43.9 36.3 121 Blackhall Mtn 9820 .0 -M * 52.2 -M * Columbine 9160 .0 .0 * 49.0 36.5 134 Divide Peak 8880 .0 .0 * 36.3 32.2 113 Joe Wright 10120 .0 .0 * 53.5 42.0 127 Laprele Creek 8375 .0 .0 * 22.1 23.2 95 Med Bow 10500 .0 -M * 57.8 -M * North French Creek 10130 .0 .0 * 51.8 41.5 125 Never Summer 10280 -M .0 * -M -M * Old Battle 10000 .0 .0 * 53.4 49.6 108 Rawah 9020 .0 .0 * 34.2 25.7 133 Sage Creek Basin 7850 .0 .0 * 20.8 21.9 95 Sand Lake 10050 .0 .0 * 50.0 39.3 127 South Brush Creek 8440 .0 .0 * 25.1 26.0 97 Tower 10500 .0 .0 * 69.9 56.0 125 Webber Springs 9250 .0 .0 * 45.0 38.6 117 Willow Creek Pass 9540 .0 .0 * 30.8 24.6 125 Zirkel 9340 .0 .0 * 56.8 41.0 139 ----- ----- Basin Index (%) * 120 SWEETWATER Deer Park 9700 .0 .0 * 30.5 33.5 91 Larsen Creek 9000 .1 .0 * 23.2 -M * South Pass 9040 .0 .0 * 21.8 28.2 77 ----- ----- Basin Index (%) * 85 LOWER N. PLATTE Casper Mtn. 7900 .0 .0 * 25.4 26.6 95 Laprele Creek 8375 .0 .0 * 22.1 23.2 95 Reno Hill 8400 .0 .0 * 32.8 27.5 119 Windy Peak 7900 .0 .0 * 24.7 21.9 113 ----- ----- Basin Index (%) * 106 LARAMIE RIVER Brooklyn Lake 10240 .0 .0 * 44.6 34.0 131 Cinnabar Park 9574 .0 .0 * 44.6 36.2 123 Crow Creek 8330 .0 .0 * 26.0 24.6 106 Deadman Hill 10220 .0 .0 * 39.5 29.6 133 Rawah 9020 .0 .0 * 34.2 25.7 133 Roach 9700 .0 .0 * 40.6 31.7 128 ----- ----- Basin Index (%) * 126 S. PLATTE Black Mountain 8920 .0 -M * 27.3 -M * Crow Creek 8330 .0 .0 * 26.0 24.6 106 Deadman Hill 10220 .0 .0 * 39.5 29.6 133 ----- ----- Basin Index (%) * 121 LITTLE SNAKE RIVER Battle Mountain 7440 .0 .0 * 26.3 23.0 114 Divide Peak 8880 .0 .0 * 36.3 32.2 113 Elk River 8700 .0 .0 * 35.1 30.9 114 Little Snake River 8915 .0 .0 * 49.1 41.2 119 Old Battle 10000 .0 .0 * 53.4 49.6 108 Sage Creek Basin 7850 .0 .0 * 20.8 21.9 95 Sandstone RS 8150 .0 .0 * 25.1 27.9 90 Whiskey Park 8950 .0 .0 * 53.9 40.0 135 ----- ----- Basin Index (%) * 112 UPPER GREEN RIVER Big Sandy Opening 9080 .0 .0 * 22.4 22.8 98 Blind Bull Sum 8650 .0 .0 * 34.4 29.5 117 East Rim Divide 7930 .0 .0 * 23.6 19.1 124 Elkhart Park G.S. 9400 .1 .0 * 26.7 23.2 115 Gros Ventre Summit 8750 .0 .0 * 24.6 22.2 111 Gunsight Pass 9820 .0 .0 * 32.0 24.6 130 Kendall R.S. 7740 .0 .0 * 30.5 21.9 139 Loomis Park 8240 .0 .0 * 34.4 26.5 130 New Fork Lake 8340 .0 .0 * 21.6 19.3 112 Pocket Creek 9360 -M -M * 27.2 -M * Snider Basin 8060 .0 .0 * 27.6 21.0 131 Spring Creek Divide 9000 .2 .0 * 43.8 34.4 127 Triple Peak 8500 .0 .0 * 49.5 37.0 134 ----- ----- Basin Index (%) * 123 LOWER GREEN RIVER Blacks Fork Jct 8870 .0 -M * 23.9 -M * Buck Pasture 9700 .0 -M * 25.6 -M * EF Blacks Fork GS 9360 .0 -M * 22.3 -M * Hams Fork 7840 .0 .0 * 24.1 18.9 128 Hewinta 9519 .0 .0 * 27.4 24.6 111 Hickerson Park 9145 .3 .0 * 21.2 20.5 103 Hole-in-Rock 9150 .0 .0 * 21.9 20.0 110 Indian Creek 9425 .0 .0 * 38.0 32.6 117 Kelley R.S. 8180 .3 .0 * 31.2 27.0 116 Spirit Lk 10235 .0 -M * 29.4 -M * Steel Creek Park 10200 .0 .0 * 30.3 28.4 107 ----- ----- Basin Index (%) * 113 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 22.8 -M * Bug Lake 7950 .5 .0 * 32.7 28.5 115 Burts Miller Ranch 8000 .0 -M * 13.3 -M * Chalk Creek #1 8993 .0 .0 * 32.7 38.3 85 Hayden Fork 9212 .1 .0 * 36.2 32.6 111 Kelley R.S. 8180 .3 .0 * 31.2 27.0 116 Lily Lake 9156 .0 .0 * 27.4 27.9 98 Monte Cristo 8960 .2 .0 * 41.0 37.8 108 Salt River Summit 7760 .0 .0 * 28.9 25.5 113 ----- ----- Basin Index (%) * 106 ----------------------------------------------------------------------------- -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.