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 FRIDAY: AUGUST 21 , 2026 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ MONTANA KOOTENAI RIVER BASIN Banfield Mountain 5580 .0 .0 * 37.5 34.1 110 Bear Mountain 5460 .0 .0 * 84.4 85.7 98 Garver Creek 4250 .0 .0 * 28.9 25.0 116 Grave Creek 4350 .0 .0 * 59.3 45.4 131 Hand Creek 5030 .0 .0 * 29.8 25.6 116 Hawkins Lake 6460 .0 .0 * 52.6 43.6 121 Poorman Creek 5050 .0 .0 * -M 72.2 * Stahl Peak 6040 -M .0 * 62.5 59.0 106 ----- ----- Basin Index (%) * 111 FLATHEAD RIVER BASIN Ashley Divide 4820 -M -M * 21.9 -M * Badger Pass 6870 .0 .0 * 59.8 46.3 129 Bassoo Peak 5130 .0 -M * 25.5 -M * Bisson Creek 4880 -M .0 * 38.6 30.0 129 Blacktail Mtn 5660 .0 .0 * 23.9 22.2 108 Emery Creek 4340 .0 .0 * 45.3 37.8 120 Flattop Mtn. 6280 .0 .0 * 79.3 70.6 112 Grave Creek 4350 .0 .0 * 59.3 45.4 131 Hand Creek 5030 .0 .0 * 29.8 25.6 116 Kraft Creek 4770 .0 .0 * 44.7 35.8 125 Moss Peak 6760 .0 .0 * 69.7 58.2 120 Noisy Basin 6070 .0 .0 * 70.2 66.0 106 North Fork Jocko 6110 .0 .0 * 68.5 64.2 107 Pike Creek 5930 .0 -M * 52.2 -M * Sleeping Woman 6120 .0 .0 * 43.6 33.6 130 Stahl Peak 6040 -M .0 * 62.5 59.0 106 Stuart Mountain 7270 .0 .0 * 47.5 46.3 103 ----- ----- Basin Index (%) * 116 UPPER CLARK FORK RIVER BASIN Barker Lakes 8250 .0 .0 * 30.2 30.0 101 Basin Creek 7120 1.0 .0 * -M 21.6 * Black Pine 7170 .0 .0 * 29.0 23.6 123 Combination 5620 .0 .0 * 19.7 18.0 109 Copper Bottom 5200 .0 .0 * -M 22.5 * Copper Camp 6980 .0 .0 * 57.9 37.7 154 Lubrecht Flume 4690 .0 .0 * 27.5 18.6 148 Nevada Ridge 7030 .0 .0 * 32.7 26.5 123 N Fk Elk Creek 6180 .0 .0 * 31.3 24.4 128 North Fork Jocko 6110 .0 .0 * 68.5 64.2 107 Peterson Meadows 7190 .0 .0 * 28.7 24.2 119 Skalkaho Summit 7260 .1 .0 * 37.2 34.4 108 Stuart Mountain 7270 .0 .0 * 47.5 46.3 103 Warm Springs 7840 .0 .0 * 44.9 37.8 119 ----- ----- Basin Index (%) * 118 BITTERROOT RIVER BASIN Daly Creek 5780 .1 .0 * 28.7 23.0 125 Lolo Pass 5280 -M .0 * 49.4 44.0 112 Moose Creek 6170 .0 .0 * 30.6 29.2 105 Nez Perce Camp 5670 .0 .0 * 36.4 30.5 119 Saddle Mtn. 7890 .0 .0 * 31.5 34.2 92 Skalkaho Summit 7260 .1 .0 * 37.2 34.4 108 Twelvemile Creek 5530 .0 .0 * 55.1 44.0 125 Twin Lakes 6380 .0 .0 * 72.2 61.2 118 ----- ----- Basin Index (%) * 114 LOWER CLARK FORK RIVER BASIN Bear Mountain 5460 .0 .0 * 84.4 85.7 98 Hoodoo Basin 6060 .0 .0 * -M 59.0 * Humboldt Gulch 4260 -M .0 * -M 49.6 * Lookout 5180 .0 .0 * 49.9 47.4 105 Mosquito Ridge 5270 .1 .0 * 55.3 55.0 101 Poorman Creek 5050 .0 .0 * -M 72.2 * Sleeping Woman 6120 .0 .0 * 43.6 33.6 130 Stuart Mountain 7270 .0 .0 * 47.5 46.3 103 Sunset 5570 .0 .0 * 48.7 48.7 100 ----- ----- Basin Index (%) * 104 JEFFERSON RIVER BASIN Albro Lake 8500 .0 .0 * 36.2 34.4 105 Barker Lakes 8250 .0 .0 * 30.2 30.0 101 Basin Creek 7120 1.0 .0 * -M 21.6 * Beagle Springs 8880 .0 .0 * 20.0 20.9 96 Bloody Dick 7570 .0 .0 * 24.5 23.0 107 Calvert Creek 6410 .0 .0 * 21.3 17.4 122 Clover Meadow 8770 .2 .0 * 27.2 29.3 93 Darkhorse Lake 8930 .0 .0 * 44.5 41.8 106 Divide 7770 .0 .0 * 25.0 21.6 116 Frohner Meadow 6520 .0 .0 * 24.2 21.4 113 JL Meadow 8750 -M -M * 26.5 -M * Lakeview Ridge 7340 .0 .0 * 30.1 24.0 125 Lemhi Ridge 8080 .0 .0 * 21.9 22.4 98 Lower Twin 7920 .0 .0 * 33.2 36.6 91 Moose Creek 6170 .0 .0 * 30.6 29.2 105 Mule Creek 8300 .0 .0 * 25.3 28.0 90 Rocker Peak 7960 .0 .0 * -M 27.2 * Saddle Mtn. 7890 .0 .0 * 31.5 34.2 92 Short Creek 6990 .0 .0 * 16.6 15.9 104 Slagamelt Lakes 8600 .4 -M * 45.6 -M * White Elephant 7670 .0 .0 * 41.9 42.4 99 ----- ----- Basin Index (%) * 102 MADISON RIVER BASIN Albro Lake 8500 .0 .0 * 36.2 34.4 105 Beaver Creek 7820 .1 .0 * 32.4 32.1 101 Black Bear 8160 .0 .0 * 51.1 51.1 100 Canyon 7870 .0 .0 * 26.8 24.8 108 Carrot Basin 9200 .1 .0 * 42.8 43.0 100 Clover Meadow 8770 .2 .0 * 27.2 29.3 93 Lone Mountain 8820 .0 .0 * 28.0 31.0 90 Lower Twin 7920 .0 .0 * 33.2 36.6 91 Madison Plateau 7710 .2 .0 * 38.4 37.4 103 Tepee Creek 7950 .0 .0 * 26.7 24.0 111 West Yellowstone 6680 .2 .0 * 23.5 22.7 104 Whiskey Creek 6790 .0 .0 * 33.2 31.0 107 ----- ----- Basin Index (%) * 101 GALLATIN RIVER BASIN Beaver Creek 7820 .1 .0 * 32.4 32.1 101 Brackett Creek 7370 .0 .0 * 41.7 43.2 97 Carrot Basin 9200 .1 .0 * 42.8 43.0 100 Lick Creek 6880 .0 .0 * 25.9 27.0 96 Lone Mountain 8820 .0 .0 * 28.0 31.0 90 Sacajawea 6610 .0 .0 * 41.1 41.2 100 Shower Falls 8060 .0 .0 * 41.5 43.3 96 ----- ----- Basin Index (%) * 97 HELENA VALLEY Boulder Mountain 7890 .0 .0 * 39.6 35.6 111 Frohner Meadow 6520 .0 .0 * 24.2 21.4 113 Nevada Ridge 7030 .0 .0 * 32.7 26.5 123 Tizer Basin 6880 .0 .0 * 25.9 23.2 112 ----- ----- Basin Index (%) * 115 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS Boulder Mountain 7890 .0 .0 * 39.6 35.6 111 Crystal Lake 6130 .0 .0 * 36.3 38.0 96 Daisy Peak 7590 .1 .0 * 18.9 23.4 81 Deadman Creek 6440 .0 .0 * 24.8 24.2 102 Elk Peak 7600 -M -M * -M -M * Onion Park 7420 .0 .0 * 31.3 31.4 100 Pickfoot Creek 6680 .0 -M * 32.4 -M * Spur Park 8080 .0 .0 * 29.4 31.3 94 Stringer Creek 6550 .0 .0 * 28.7 28.1 102 ----- ----- Basin Index (%) * 99 SUN, TETON AND MARIAS RIVER BASINS Badger Pass 6870 .0 .0 * 59.8 46.3 129 Dupuyer Creek 5740 .0 .0 * 34.0 24.6 138 Mount Lockhart 6430 .0 .0 * 52.8 38.6 137 Pike Creek 5930 .0 -M * 52.2 -M * Waldron 5640 .0 .0 * 36.7 27.4 134 Wood Creek 5970 .0 .0 * 30.4 25.4 120 ----- ----- Basin Index (%) * 132 ST. MARYS RIVER BASIN Flattop Mtn. 6280 .0 .0 * 79.3 70.6 112 Many Glacier 4930 .0 .0 * 54.6 42.2 129 ----- ----- Basin Index (%) * 119 MILK RIVER BASIN Rocky Boy 4730 .0 .0 * 29.8 22.2 134 ----- ----- Basin Index (%) * 134 UPPER YELLOWSTONE RIVER BASIN Beartooth Lake 9360 .0 .0 * 37.6 32.3 116 Box Canyon 6720 .0 .0 * 25.8 21.9 118 Brackett Creek 7370 .0 .0 * 41.7 43.2 97 Burnt Mtn 5920 .0 .0 * 21.9 23.9 92 Canyon 7870 .0 .0 * 26.8 24.8 108 Cole Creek 7910 .0 .0 * 19.2 26.7 72 East Boulder Mine 6310 .0 .0 * 23.9 26.5 90 Evening Star 9030 .0 .0 * 46.5 41.2 113 Fisher Creek 9110 .0 .0 * 51.3 48.7 105 Monument Peak 8740 .0 .0 * 37.9 35.6 106 Northeast Entrance 7420 .0 .0 * 25.7 22.4 115 Parker Peak 9420 .0 .0 * 37.6 30.6 123 Placer Basin 8790 .0 .0 * 37.2 33.4 111 Porcupine 6480 .0 .0 * 26.2 23.6 111 Sacajawea 6610 .0 .0 * 41.1 41.2 100 Shower Falls 8060 .0 .0 * 41.5 43.3 96 S Fork Shields 8090 .0 .0 * 40.0 38.6 104 Sylvan Lake 8440 .0 .0 * 35.6 35.6 100 Thumb Divide 7970 .0 .0 * 28.6 26.6 108 Two Ocean Plateau 9240 .0 .0 * 43.2 39.2 110 White Mill 8730 .0 .0 * 37.5 36.0 104 Wolverine 7660 .0 .0 * 26.8 20.6 130 ----- ----- Basin Index (%) * 105 BIGHORN RIVER BASIN (WYOMING) Bald Mtn. 9360 .1 .0 * 26.0 28.8 90 Bear Trap Meadow 8200 .0 .0 * 15.5 18.8 82 Blackwater 9830 .0 .0 * 39.0 33.8 115 Bone Springs Div 9340 .0 .0 * 20.1 27.7 73 Burroughs Creek 8760 -M -M * 27.1 -M * Castle Creek 8410 .1 .0 * 14.3 15.8 91 Cold Springs 9640 .0 .0 * 20.8 19.1 109 Deer Park 9690 .0 .0 * 26.1 28.5 92 Evening Star 9030 .0 .0 * 46.5 41.2 113 Grave Springs 8560 .2 .0 * 15.6 18.0 87 Hobbs Park 10080 .0 .0 * 27.2 25.4 107 Kirwin 9580 .0 .0 * 28.4 23.9 119 Little Warm 9370 .0 .0 * 24.9 21.6 115 Marquette 8800 .0 .0 * 15.5 22.7 68 Middle Powder 7760 .0 .0 * 15.9 19.8 80 Owl Creek 8990 .0 .0 * 15.9 15.8 101 Powder River Pass 9480 .0 .0 * 22.1 25.2 88 Shell Creek 9570 .0 .0 * 26.0 25.0 104 South Pass 9040 .1 .0 * 22.5 24.8 91 St. Lawrence Alt 8610 .0 -M * 14.9 -M * Sylvan Lake 8440 .0 .0 * 35.6 35.6 100 Sylvan Road 7140 .0 .0 * 26.1 25.0 104 Timber Creek 7910 .0 .0 * 11.8 19.4 61 Togwotee Pass 9590 .0 .0 * 40.5 35.2 115 Townsend Creek 8720 .1 .0 * 19.8 23.5 84 Younts Peak 8340 -M .0 * 31.8 25.1 127 ----- ----- Basin Index (%) * 98 TONGUE RIVER BASIN (WYOMING) Big Goose 8010 -M .0 * 18.8 23.1 81 Bone Springs Div 9340 .0 .0 * 20.1 27.7 73 Burgess Junction 7910 .0 .0 * 22.2 23.4 95 Dome Lake 8890 .0 .0 * 24.4 26.6 92 Little Goose 8560 .0 .0 * 22.0 25.5 86 Sucker Creek 8840 .1 .0 * 25.3 27.8 91 Tie Creek 7050 .0 .0 * 19.6 24.4 80 ----- ----- Basin Index (%) * 85 POWDER RIVER BASIN (WYOMING) Bear Trap Meadow 8200 .0 .0 * 15.5 18.8 82 Cloud Peak Reservoir 9830 .2 .0 * 28.3 27.5 103 Grave Springs 8560 .2 .0 * 15.6 18.0 87 Hanson Sawmill 8360 .0 .0 * 17.3 21.0 82 Middle Powder 7760 .0 .0 * 15.9 19.8 80 Powder River Pass 9480 .0 .0 * 22.1 25.2 88 Soldier Park 8680 .0 .0 * 14.9 20.7 72 ----- ----- Basin Index (%) * 86 Missouri River Basin ab Ft. Peck Albro Lake 8500 .0 .0 * 36.2 34.4 105 Badger Pass 6870 .0 .0 * 59.8 46.3 129 Barker Lakes 8250 .0 .0 * 30.2 30.0 101 Basin Creek 7120 1.0 .0 * -M 21.6 * Beagle Springs 8880 .0 .0 * 20.0 20.9 96 Beaver Creek 7820 .1 .0 * 32.4 32.1 101 Black Bear 8160 .0 .0 * 51.1 51.1 100 Bloody Dick 7570 .0 .0 * 24.5 23.0 107 Boulder Mountain 7890 .0 .0 * 39.6 35.6 111 Brackett Creek 7370 .0 .0 * 41.7 43.2 97 Calvert Creek 6410 .0 .0 * 21.3 17.4 122 Canyon 7870 .0 .0 * 26.8 24.8 108 Carrot Basin 9200 .1 .0 * 42.8 43.0 100 Clover Meadow 8770 .2 .0 * 27.2 29.3 93 Crystal Lake 6130 .0 .0 * 36.3 38.0 96 Daisy Peak 7590 .1 .0 * 18.9 23.4 81 Darkhorse Lake 8930 .0 .0 * 44.5 41.8 106 Deadman Creek 6440 .0 .0 * 24.8 24.2 102 Divide 7770 .0 .0 * 25.0 21.6 116 Dupuyer Creek 5740 .0 .0 * 34.0 24.6 138 Elk Peak 7600 -M -M * -M -M * Frohner Meadow 6520 .0 .0 * 24.2 21.4 113 JL Meadow 8750 -M -M * 26.5 -M * Lakeview Ridge 7340 .0 .0 * 30.1 24.0 125 Lemhi Ridge 8080 .0 .0 * 21.9 22.4 98 Lick Creek 6880 .0 .0 * 25.9 27.0 96 Lone Mountain 8820 .0 .0 * 28.0 31.0 90 Lower Twin 7920 .0 .0 * 33.2 36.6 91 Madison Plateau 7710 .2 .0 * 38.4 37.4 103 Moose Creek 6170 .0 .0 * 30.6 29.2 105 Mount Lockhart 6430 .0 .0 * 52.8 38.6 137 Mule Creek 8300 .0 .0 * 25.3 28.0 90 Nevada Ridge 7030 .0 .0 * 32.7 26.5 123 Onion Park 7420 .0 .0 * 31.3 31.4 100 Pickfoot Creek 6680 .0 -M * 32.4 -M * Pike Creek 5930 .0 -M * 52.2 -M * Rocker Peak 7960 .0 .0 * -M 27.2 * Sacajawea 6610 .0 .0 * 41.1 41.2 100 Saddle Mtn. 7890 .0 .0 * 31.5 34.2 92 Short Creek 6990 .0 .0 * 16.6 15.9 104 Shower Falls 8060 .0 .0 * 41.5 43.3 96 Slagamelt Lakes 8600 .4 -M * 45.6 -M * Spur Park 8080 .0 .0 * 29.4 31.3 94 Stringer Creek 6550 .0 .0 * 28.7 28.1 102 Tepee Creek 7950 .0 .0 * 26.7 24.0 111 Tizer Basin 6880 .0 .0 * 25.9 23.2 112 Waldron 5640 .0 .0 * 36.7 27.4 134 West Yellowstone 6680 .2 .0 * 23.5 22.7 104 Whiskey Creek 6790 .0 .0 * 33.2 31.0 107 White Elephant 7670 .0 .0 * 41.9 42.4 99 Wood Creek 5970 .0 .0 * 30.4 25.4 120 ----- ----- Basin Index (%) * 105 Yellowstone River Basin ab Glendive Bald Mtn. 9360 .1 .0 * 26.0 28.8 90 Bear Trap Meadow 8200 .0 .0 * 15.5 18.8 82 Beartooth Lake 9360 .0 .0 * 37.6 32.3 116 Big Goose 8010 -M .0 * 18.8 23.1 81 Blackwater 9830 .0 .0 * 39.0 33.8 115 Bone Springs Div 9340 .0 .0 * 20.1 27.7 73 Box Canyon 6720 .0 .0 * 25.8 21.9 118 Brackett Creek 7370 .0 .0 * 41.7 43.2 97 Burgess Junction 7910 .0 .0 * 22.2 23.4 95 Burnt Mtn 5920 .0 .0 * 21.9 23.9 92 Burroughs Creek 8760 -M -M * 27.1 -M * Canyon 7870 .0 .0 * 26.8 24.8 108 Castle Creek 8410 .1 .0 * 14.3 15.8 91 Cloud Peak Reservoir 9830 .2 .0 * 28.3 27.5 103 Cold Springs 9640 .0 .0 * 20.8 19.1 109 Cole Creek 7910 .0 .0 * 19.2 26.7 72 Deer Park 9690 .0 .0 * 26.1 28.5 92 Dome Lake 8890 .0 .0 * 24.4 26.6 92 East Boulder Mine 6310 .0 .0 * 23.9 26.5 90 Evening Star 9030 .0 .0 * 46.5 41.2 113 Fisher Creek 9110 .0 .0 * 51.3 48.7 105 Grave Springs 8560 .2 .0 * 15.6 18.0 87 Hanson Sawmill 8360 .0 .0 * 17.3 21.0 82 Hobbs Park 10080 .0 .0 * 27.2 25.4 107 Kirwin 9580 .0 .0 * 28.4 23.9 119 Little Goose 8560 .0 .0 * 22.0 25.5 86 Little Warm 9370 .0 .0 * 24.9 21.6 115 Marquette 8800 .0 .0 * 15.5 22.7 68 Middle Powder 7760 .0 .0 * 15.9 19.8 80 Monument Peak 8740 .0 .0 * 37.9 35.6 106 Northeast Entrance 7420 .0 .0 * 25.7 22.4 115 Owl Creek 8990 .0 .0 * 15.9 15.8 101 Parker Peak 9420 .0 .0 * 37.6 30.6 123 Placer Basin 8790 .0 .0 * 37.2 33.4 111 Porcupine 6480 .0 .0 * 26.2 23.6 111 Powder River Pass 9480 .0 .0 * 22.1 25.2 88 S Fork Shields 8090 .0 .0 * 40.0 38.6 104 Sacajawea 6610 .0 .0 * 41.1 41.2 100 Shell Creek 9570 .0 .0 * 26.0 25.0 104 Shower Falls 8060 .0 .0 * 41.5 43.3 96 Soldier Park 8680 .0 .0 * 14.9 20.7 72 South Pass 9040 .1 .0 * 22.5 24.8 91 St. Lawrence Alt 8610 .0 -M * 14.9 -M * Sucker Creek 8840 .1 .0 * 25.3 27.8 91 Sylvan Lake 8440 .0 .0 * 35.6 35.6 100 Sylvan Road 7140 .0 .0 * 26.1 25.0 104 Thumb Divide 7970 .0 .0 * 28.6 26.6 108 Tie Creek 7050 .0 .0 * 19.6 24.4 80 Timber Creek 7910 .0 .0 * 11.8 19.4 61 Togwotee Pass 9590 .0 .0 * 40.5 35.2 115 Townsend Creek 8720 .1 .0 * 19.8 23.5 84 Two Ocean Plateau 9240 .0 .0 * 43.2 39.2 110 White Mill 8730 .0 .0 * 37.5 36.0 104 Wolverine 7660 .0 .0 * 26.8 20.6 130 Younts Peak 8340 -M .0 * 31.8 25.1 127 ----- ----- Basin Index (%) * 100 ----------------------------------------------------------------------------- -M = Missing data * = Data may not provide a valid measure of conditions. Units = inches for the Current and Median (or Average) 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 (or Average) represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the Median (or Average) value for those sites on this day. The TOTAL PRECIPITATION Percent of Median (or Average) represents the total precipitation (beginning October 1st) found at selected SNOTEL sites in or near the basin compared to the Median (or Average) value for those sites on this day. Contact your state water supply staff for assistance. Medians and averages are calculated for the period 1991-2020. 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 or average for the day is less than 10% of the maximum median or average value for the year. * Basin - More than half of the stations for a basin with medians (or averages) report missing or invalid data The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100.