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 SUNDAY: OCTOBER 1 , 2023 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ WYOMING SNAKE RIVER Base Camp 7060 -M .0 * 33.1 32.8 101 Blind Bull Sum 8650 .1 .0 * 31.3 29.2 107 Cottonwood Creek 7670 .1 .0 * 46.3 39.6 117 East Rim Divide 7930 -M .0 * 24.8 19.3 128 Grand Targhee 9260 -M .0 * 48.9 50.6 97 Granite Creek 6770 -M .0 * 24.6 30.6 80 Grassy Lake 7265 -M .0 * 56.1 50.8 110 Gros Ventre Summit 8750 .0 .0 * 22.9 22.6 101 Gunsight Pass 9820 .2 .0 * 28.4 25.0 114 Lewis Lake Divide 7850 .1 .0 * 56.4 48.6 116 Loomis Park 8240 .2 .0 * 27.8 27.8 100 Phillips Bench 8200 .2 .0 * 41.2 40.9 101 Salt River Summit 7640 .0 .0 * 30.0 26.2 115 Snake River Station 6920 .0 .0 * 35.4 34.5 103 Somsen Ranch 6800 -M .0 * 35.0 26.6 132 Spring Creek Divide 9000 -M .0 * 45.3 35.8 127 Thumb Divide 7980 -M .0 * 34.4 29.4 117 Togwotee Pass 9580 .0 .0 * 36.1 38.2 95 Triple Peak 8500 -M .0 * 40.4 39.4 103 Two Ocean Plateau 9240 .0 .0 * 44.0 41.4 106 Willow Creek 8080 -M .0 * 54.2 52.2 104 Younts Peak 8350 -M .0 * -M 28.0 * ----- ----- Basin Index (%) * 107 MADISON HEADWATERS IN WYOMING Black Bear 8170 .0 .0 * 59.6 54.0 110 Canyon 7870 .0 -M * 30.8 -M * Madison Plateau 7750 .0 .0 * 44.9 40.4 111 West Yellowstone 6700 .0 .0 * 30.2 24.0 126 Whiskey Creek 6800 .0 .0 * 40.5 33.4 121 ----- ----- Basin Index (%) * 115 YELLOWSTONE HEADWATERS IN WYOMING Beartooth Lake 9360 .0 .0 * 33.6 34.6 97 Canyon 7870 .0 -M * 30.8 -M * Evening Star 9200 .0 .0 * 46.0 44.8 103 Fisher Creek 9100 .0 .0 * 53.9 51.8 104 Monument Peak 8850 .1 .0 * 42.6 38.0 112 Northeast Entrance 7350 .1 .0 * 26.3 24.4 108 Parker Peak 9400 .0 .0 * 39.9 32.8 122 Sylvan Lake 8420 .0 .0 * 40.9 38.7 106 Thumb Divide 7980 -M .0 * 34.4 29.4 117 Two Ocean Plateau 9240 .0 .0 * 44.0 41.4 106 White Mill 8700 .0 .0 * 38.8 39.1 99 Wolverine 7650 .0 .0 * 23.2 23.2 100 ----- ----- Basin Index (%) * 106 WIND RIVER Burroughs Creek 8750 .0 -M * 26.2 -M * Castle Creek 8400 .1 .0 * 21.6 19.4 111 Cold Springs 9630 .0 .0 * 25.4 20.6 123 Deer Park 9700 .0 .0 * 41.2 31.6 130 Hobbs Park 10100 .0 .0 * 35.4 27.5 129 Kirwin 9550 .0 .0 * -M 26.8 * Little Warm 9370 .0 .0 * 28.7 24.2 119 South Pass 9040 .0 .0 * 34.8 27.1 128 St. Lawrence Alt 8620 .0 -M * 28.6 -M * Togwotee Pass 9580 .0 .0 * 36.1 38.2 95 Townsend Creek 8700 .1 .0 * 30.8 24.9 124 ----- ----- Basin Index (%) * 119 BIGHORN BASIN Bald Mtn. 9380 .1 .0 * 38.1 31.5 121 Bear Trap Meadow 8200 .0 .0 * 29.1 20.4 143 Bone Springs Div 9350 .0 .0 * 30.8 30.0 103 Grave Springs 8550 .1 .0 * 26.4 20.3 130 Kirwin 9550 .0 .0 * -M 26.8 * Marquette 8760 .0 .0 * 32.6 25.3 129 Middle Powder 7760 .1 .0 * 29.1 21.4 136 Owl Creek 8975 .0 .0 * 29.7 17.9 166 Powder River Pass 9480 -M .0 * -M 27.6 * Shell Creek 9580 .1 .0 * 30.8 28.6 108 Timber Creek 7950 .0 .0 * 29.6 22.6 131 ----- ----- Basin Index (%) * 127 SHOSHONE RIVER Blackwater 9780 .1 .0 * 39.9 37.0 108 Evening Star 9200 .0 .0 * 46.0 44.8 103 Marquette 8760 .0 .0 * 32.6 25.3 129 Sylvan Lake 8420 .0 .0 * 40.9 38.7 106 Sylvan Road 7120 -M .0 * 27.5 26.9 102 Younts Peak 8350 -M .0 * -M 28.0 * ----- ----- Basin Index (%) * 108 POWDER RIVER Bear Trap Meadow 8200 .0 .0 * 29.1 20.4 143 Cloud Peak Reservoir 9860 .0 .0 * -M 30.6 * Grave Springs 8550 .1 .0 * 26.4 20.3 130 Hansen Sawmill 8360 .0 .0 * 30.7 22.4 137 Middle Powder 7760 .1 .0 * 29.1 21.4 136 Powder River Pass 9480 -M .0 * -M 27.6 * Soldier Park 8720 .0 .0 * 30.2 22.6 134 ----- ----- Basin Index (%) * 136 TONGUE RIVER Big Goose 7990 -M .0 * 34.1 24.6 139 Bone Springs Div 9350 .0 .0 * 30.8 30.0 103 Burgess Junction 7880 .1 .0 * -M 25.6 * Dome Lake 8880 .0 .0 * 34.0 28.5 119 Little Goose 8870 .0 .0 * 35.9 29.2 123 Sucker Creek 8880 .1 .0 * 37.8 30.0 126 Tie Creek 6870 .0 .0 * 35.4 26.5 134 ----- ----- Basin Index (%) * 123 BELLE FOURCHE Blind Park 6890 .0 .0 * 27.9 27.0 103 Cole Canyon 5910 .1 .0 * -M 25.5 * North Rapid Creek 6130 -M .0 * 28.5 25.0 114 ----- ----- Basin Index (%) * 108 CHEYENNE RIVER BASIN Blind Park 6890 .0 .0 * 27.9 27.0 103 North Rapid Creek 6130 -M .0 * 28.5 25.0 114 ----- ----- Basin Index (%) * 108 UPPER N. PLATTE Arapaho Ridge 10976 .0 .0 * 38.6 37.3 103 Blackhall Mtn 9839 .1 .0 * 48.3 43.9 110 Cinnabar Park 9707 .1 .0 * 35.7 36.6 98 Columbine 9167 -M .0 * 35.4 37.4 95 Divide Peak 8730 .1 .0 * 37.1 32.0 116 Joe Wright 10158 .0 .0 * 42.6 43.6 98 Laprele Creek 8390 .0 .0 * 27.3 23.0 119 Med Bow 10512 .1 -M * 50.5 -M * Never Summer 10323 .0 .0 * 36.4 32.6 112 North French Creek 10153 .1 .0 * 44.0 43.6 101 Old Battle 9860 .0 .0 * 55.8 50.2 111 Rawah 9069 .0 .0 * 30.0 28.4 106 Sage Creek Basin 7850 .0 .0 * 26.5 22.4 118 Sand Lake 10098 .1 .0 * 42.8 40.6 105 South Brush Creek 8495 -M .0 * 24.2 25.9 93 Tower 10620 .1 .0 * 64.0 58.4 110 Webber Springs 9260 .0 .0 * 40.8 39.8 103 Whiskey Park 9020 .0 .0 * 44.3 42.6 104 Willow Creek Pass 9523 .1 .0 * 30.2 26.2 115 Zirkel 9338 .0 .0 * 45.7 43.3 106 ----- ----- Basin Index (%) * 106 SWEETWATER Deer Park 9700 .0 .0 * 41.2 31.6 130 Larsen Creek 9000 -M .0 * 28.8 21.6 133 South Pass 9040 .0 .0 * 34.8 27.1 128 ----- ----- Basin Index (%) * 131 LOWER N. PLATTE Casper Mtn. 7920 .2 .0 * 33.1 25.5 130 Laprele Creek 8390 .0 .0 * 27.3 23.0 119 Reno Hill 8430 .1 .0 * 33.8 29.2 116 Windy Peak 7915 .0 .0 * 23.5 22.4 105 ----- ----- Basin Index (%) * 118 LARAMIE RIVER Brooklyn Lake 10250 .1 .0 * 38.2 34.4 111 Cinnabar Park 9707 .1 .0 * 35.7 36.6 98 Crow Creek 8335 .1 .0 * 22.3 24.4 91 Deadman Hill 10239 .1 .0 * 34.7 30.6 113 Rawah 9069 .0 .0 * 30.0 28.4 106 Roach 9740 .0 .0 * 34.7 32.8 106 Windy Peak 7915 .0 .0 * 23.5 22.4 105 ----- ----- Basin Index (%) * 105 S. PLATTE Crow Creek 8335 .1 .0 * 22.3 24.4 91 ----- ----- Basin Index (%) * 91 LITTLE SNAKE RIVER Battle Mountain 7498 .1 .0 * 28.9 24.0 120 Divide Peak 8730 .1 .0 * 37.1 32.0 116 Elk River 8739 .2 .0 * 38.8 31.2 124 Elkhead Divide 8800 .1 -M * 41.0 -M * Little Snake River 8928 .0 .0 * 54.3 47.4 115 Old Battle 9860 .0 .0 * 55.8 50.2 111 Sage Creek Basin 7850 .0 .0 * 26.5 22.4 118 Sandstone RS 8152 .1 .0 * 32.5 27.6 118 Whiskey Park 9020 .0 .0 * 44.3 42.6 104 ----- ----- Basin Index (%) * 115 UPPER GREEN RIVER Big Sandy Opening 9080 -M .0 * 28.0 22.6 124 Blind Bull Sum 8650 .1 .0 * 31.3 29.2 107 East Rim Divide 7930 -M .0 * 24.8 19.3 128 Elkhart Park G.S. 9400 -M .0 * 26.8 23.0 117 Gros Ventre Summit 8750 .0 .0 * 22.9 22.6 101 Gunsight Pass 9820 .2 .0 * 28.4 25.0 114 Indian Creek 9425 .2 .0 * 36.7 31.4 117 Kendall R.S. 7740 .1 .0 * 23.7 21.2 112 Larsen Creek 9000 -M .0 * 28.8 21.6 133 Loomis Park 8240 .2 .0 * 27.8 27.8 100 New Fork Lake 8340 -M .0 * -M 20.4 * Pocket Creek 9360 -M -M * -M -M * Snider Basin 8060 -M .0 * 27.1 22.0 123 Spring Creek Divide 9000 -M .0 * 45.3 35.8 127 Triple Peak 8500 -M .0 * 40.4 39.4 103 ----- ----- Basin Index (%) * 115 LOWER GREEN RIVER Blacks Fork Jct 8869 -M -M * 24.7 22.2 111 Buck Pasture 9632 2.0 -M * 35.4 -M * EF Blacks Fork GS 9360 .0 -M * 28.1 25.0 112 Hams Fork 7840 -M .0 * 24.7 19.7 125 Henrys Fork 10182 -M -M * -M -M * Hewinta 9500 .0 .0 * 29.0 25.6 113 Hickerson Park 9122 1.9 .0 * 23.3 21.6 108 Hole-in-Rock 9168 .1 .0 * 25.2 21.6 117 Indian Creek 9425 .2 .0 * 36.7 31.4 117 Kelley R.S. 8180 .3 .0 * 33.0 27.2 121 Spirit Lk 10235 .0 .0 * 37.6 32.6 115 Steel Creek Park 10158 .0 .0 * 35.8 30.0 119 ----- ----- Basin Index (%) * 116 UPPER BEAR RIVER Bear River RS 8777 .0 -M * 25.0 23.0 109 Bug Lake 7987 -M .0 * 37.0 27.8 133 Burts Miller Ranch 8000 .3 .0 * 23.6 13.3 177 Chalk Creek #1 9171 .1 .0 * 45.4 37.2 122 Giveout 6930 .0 .0 * 25.2 21.6 117 Hayden Fork 9130 1.5 .0 * 41.0 34.6 118 Kelley R.S. 8180 .3 .0 * 33.0 27.2 121 Lily Lake 9133 .0 .0 * 27.6 28.3 98 Monte Cristo 8932 .0 .0 * 52.0 37.4 139 Salt River Summit 7640 .0 .0 * 30.0 26.2 115 Spring Creek Divide 9000 -M .0 * 45.3 35.8 127 Trial Lake 9992 1.0 .0 * 48.7 36.6 133 ----- ----- Basin Index (%) * 124 ---------------------------------------------------------------------------- -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.