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 SATURDAY: SEPTEMBER 12 , 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 .2 .0 * 40.7 35.2 116 Bear Mountain 5460 .0 .0 * 88.5 90.4 98 Garver Creek 4250 .2 .0 * 30.6 26.3 116 Grave Creek 4350 .0 .0 * 62.8 47.4 132 Hand Creek 5030 .0 .0 * 32.5 26.4 123 Hawkins Lake 6460 .0 .0 * 54.8 44.5 123 Poorman Creek 5050 .0 .0 * 82.7 73.6 112 Stahl Peak 6040 .0 .0 * 67.5 61.0 111 ----- ----- Basin Index (%) * 114 FLATHEAD RIVER BASIN Ashley Divide 4820 -M -M * 24.2 -M * Badger Pass 6870 .0 .0 * -M 47.6 * Bassoo Peak 5130 .0 -M * 26.3 -M * Bisson Creek 4880 -M .0 * 41.8 31.8 131 Blacktail Mtn 5660 .0 .0 * 26.8 23.8 113 Emery Creek 4340 .0 .0 * 49.3 39.0 126 Flattop Mtn. 6280 .1 .0 * 84.5 71.6 118 Grave Creek 4350 .0 .0 * 62.8 47.4 132 Hand Creek 5030 .0 .0 * 32.5 26.4 123 Kraft Creek 4770 .0 .0 * 48.0 36.6 131 Moss Peak 6760 .1 .0 * 74.1 60.2 123 Noisy Basin 6070 .0 .0 * 76.6 68.8 111 North Fork Jocko 6110 .0 .0 * 73.4 66.0 111 Pike Creek 5930 .0 -M * 57.6 -M * Sleeping Woman 6120 .0 .0 * 46.1 34.3 134 Stahl Peak 6040 .0 .0 * 67.5 61.0 111 Stuart Mountain 7270 .0 .0 * 50.4 46.8 108 ----- ----- Basin Index (%) * 120 UPPER CLARK FORK RIVER BASIN Barker Lakes 8250 .0 .0 * 32.4 31.9 102 Basin Creek 7120 .0 .0 * 17.8 22.7 78 Black Pine 7170 .0 .0 * 31.9 24.2 132 Combination 5620 .1 .0 * 22.2 19.2 116 Copper Bottom 5200 .0 .0 * -M 23.8 * Copper Camp 6980 .0 .0 * 62.5 37.9 165 Lubrecht Flume 4690 .0 .0 * 31.0 19.2 161 Nevada Ridge 7030 .0 .0 * 32.3 27.4 118 N Fk Elk Creek 6180 .0 .0 * 34.5 25.0 138 North Fork Jocko 6110 .0 .0 * 73.4 66.0 111 Peterson Meadows 7190 .1 .0 * 30.1 25.7 117 Skalkaho Summit 7260 .0 .0 * 41.2 35.6 116 Stuart Mountain 7270 .0 .0 * 50.4 46.8 108 Warm Springs 7840 .0 .0 * 47.1 38.9 121 ----- ----- Basin Index (%) * 121 BITTERROOT RIVER BASIN Daly Creek 5780 .2 .0 * 31.8 23.8 134 Lolo Pass 5280 .0 .0 * 51.3 45.4 113 Moose Creek 6170 .0 .0 * 32.9 29.9 110 Nez Perce Camp 5670 .0 .0 * 38.8 31.9 122 Saddle Mtn. 7890 .0 .0 * 33.5 34.6 97 Skalkaho Summit 7260 .0 .0 * 41.2 35.6 116 Twelvemile Creek 5530 .0 .0 * 58.0 45.4 128 Twin Lakes 6380 .0 .0 * 76.6 63.5 121 ----- ----- Basin Index (%) * 117 LOWER CLARK FORK RIVER BASIN Bear Mountain 5460 .0 .0 * 88.5 90.4 98 Hoodoo Basin 6060 .0 .0 * -M 60.6 * Humboldt Gulch 4260 -M .0 * -M 50.6 * Lookout 5180 .0 .0 * 52.4 48.6 108 Mosquito Ridge 5270 .0 .0 * 57.9 56.4 103 Poorman Creek 5050 .0 .0 * 82.7 73.6 112 Sleeping Woman 6120 .0 .0 * 46.1 34.3 134 Stuart Mountain 7270 .0 .0 * 50.4 46.8 108 Sunset 5570 .0 .0 * -M 50.0 * ----- ----- Basin Index (%) * 108 JEFFERSON RIVER BASIN Albro Lake 8500 .0 .0 * 37.2 35.3 105 Barker Lakes 8250 .0 .0 * 32.4 31.9 102 Basin Creek 7120 .0 .0 * 17.8 22.7 78 Beagle Springs 8880 .2 .0 * 21.6 21.6 100 Bloody Dick 7570 .0 .0 * 24.6 24.2 102 Calvert Creek 6410 .0 .0 * 23.2 18.2 127 Clover Meadow 8770 .4 .0 * 28.6 30.9 93 Darkhorse Lake 8930 .0 .0 * 45.6 43.0 106 Divide 7770 .1 .0 * 26.4 23.2 114 Frohner Meadow 6520 .0 .0 * 25.8 22.4 115 JL Meadow 8750 -M -M * 27.6 -M * Lakeview Ridge 7340 .1 .0 * 31.2 24.8 126 Lemhi Ridge 8080 .0 .0 * 22.8 24.0 95 Lower Twin 7920 .1 .0 * 34.3 38.0 90 Moose Creek 6170 .0 .0 * 32.9 29.9 110 Mule Creek 8300 .0 .0 * 26.9 28.8 93 Rocker Peak 7960 .0 .0 * 30.7 28.0 110 Saddle Mtn. 7890 .0 .0 * 33.5 34.6 97 Short Creek 6990 .0 .0 * 17.1 16.9 101 Slagamelt Lakes 8600 .3 -M * 48.0 -M * White Elephant 7670 .0 .0 * 43.2 43.9 98 ----- ----- Basin Index (%) * 102 MADISON RIVER BASIN Albro Lake 8500 .0 .0 * 37.2 35.3 105 Beaver Creek 7820 .0 .0 * 34.5 34.2 101 Black Bear 8160 .0 .0 * 51.8 53.0 98 Canyon 7870 .0 .0 * 28.0 26.7 105 Carrot Basin 9200 .0 .0 * 45.3 44.7 101 Clover Meadow 8770 .4 .0 * 28.6 30.9 93 Lone Mountain 8820 .1 .0 * 29.4 32.2 91 Lower Twin 7920 .1 .0 * 34.3 38.0 90 Madison Plateau 7710 .0 .0 * 39.5 39.1 101 Tepee Creek 7950 .0 .0 * 28.4 24.8 115 West Yellowstone 6680 .4 .0 * 24.5 23.7 103 Whiskey Creek 6790 .1 .0 * 34.3 32.2 107 ----- ----- Basin Index (%) * 100 GALLATIN RIVER BASIN Beaver Creek 7820 .0 .0 * 34.5 34.2 101 Brackett Creek 7370 .1 .0 * 43.2 44.8 96 Carrot Basin 9200 .0 .0 * 45.3 44.7 101 Lick Creek 6880 .0 .0 * 27.5 28.4 97 Lone Mountain 8820 .1 .0 * 29.4 32.2 91 Sacajawea 6610 .0 .0 * 42.5 41.8 102 Shower Falls 8060 .0 .0 * 42.8 44.9 95 ----- ----- Basin Index (%) * 98 HELENA VALLEY Boulder Mountain 7890 .0 .0 * 40.6 37.2 109 Frohner Meadow 6520 .0 .0 * 25.8 22.4 115 Nevada Ridge 7030 .0 .0 * 32.3 27.4 118 Tizer Basin 6880 .0 .0 * 26.8 24.7 109 ----- ----- Basin Index (%) * 112 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS Boulder Mountain 7890 .0 .0 * 40.6 37.2 109 Crystal Lake 6130 .0 .0 * 37.7 39.6 95 Daisy Peak 7590 .0 .0 * 19.5 25.0 78 Deadman Creek 6440 .0 .0 * 26.0 25.8 101 Elk Peak 7600 -M -M * -M -M * Onion Park 7420 .0 .0 * 31.8 33.1 96 Pickfoot Creek 6680 .2 -M * 33.4 -M * Spur Park 8080 .0 .0 * 31.0 32.2 96 Stringer Creek 6550 .0 .0 * 30.0 28.9 104 ----- ----- Basin Index (%) * 98 SUN, TETON AND MARIAS RIVER BASINS Badger Pass 6870 .0 .0 * -M 47.6 * Dupuyer Creek 5740 .0 .0 * 38.6 26.4 146 Mount Lockhart 6430 .0 .0 * 58.2 39.5 147 Pike Creek 5930 .0 -M * 57.6 -M * Waldron 5640 .1 .0 * 41.1 28.4 145 Wood Creek 5970 .0 .0 * 34.4 26.9 128 ----- ----- Basin Index (%) * 142 ST. MARYS RIVER BASIN Flattop Mtn. 6280 .1 .0 * 84.5 71.6 118 Many Glacier 4930 .0 .0 * 58.8 44.4 132 ----- ----- Basin Index (%) * 124 MILK RIVER BASIN Rocky Boy 4730 .0 .0 * 34.3 24.2 142 ----- ----- Basin Index (%) * 142 UPPER YELLOWSTONE RIVER BASIN Beartooth Lake 9360 .0 .0 * 38.9 33.6 116 Box Canyon 6720 .0 .0 * 27.5 22.8 121 Brackett Creek 7370 .1 .0 * 43.2 44.8 96 Burnt Mtn 5920 .0 .0 * 22.7 26.5 86 Canyon 7870 .0 .0 * 28.0 26.7 105 Cole Creek 7910 .0 .0 * 19.7 28.5 69 East Boulder Mine 6310 .0 .0 * 25.0 27.2 92 Evening Star 9030 .0 .0 * 47.9 42.2 114 Fisher Creek 9110 .0 .0 * 52.9 50.2 105 Monument Peak 8740 .1 .0 * 40.6 37.0 110 Northeast Entrance 7420 .0 .0 * 27.4 23.5 117 Parker Peak 9420 .0 .0 * 38.8 31.8 122 Placer Basin 8790 .0 .0 * 38.8 34.8 111 Porcupine 6480 .1 .0 * 27.2 24.4 111 Sacajawea 6610 .0 .0 * 42.5 41.8 102 Shower Falls 8060 .0 .0 * 42.8 44.9 95 S Fork Shields 8090 .0 .0 * 41.0 39.8 103 Sylvan Lake 8440 .0 .0 * 38.2 37.7 101 Thumb Divide 7970 .0 .0 * 29.9 28.2 106 Two Ocean Plateau 9240 .0 .0 * 44.7 40.2 111 White Mill 8730 .0 .0 * 39.4 37.8 104 Wolverine 7660 .0 .0 * 27.5 21.2 130 ----- ----- Basin Index (%) * 105 BIGHORN RIVER BASIN (WYOMING) Bald Mtn. 9360 .0 .0 * 26.4 29.4 90 Bear Trap Meadow 8200 .2 .0 * 15.9 19.2 83 Blackwater 9830 .0 .0 * 39.7 35.0 113 Bone Springs Div 9340 .0 .0 * 20.8 28.4 73 Burroughs Creek 8760 -M -M * 29.0 -M * Castle Creek 8410 .2 .0 * 15.3 16.9 91 Cold Springs 9640 .0 .0 * 22.3 19.8 113 Deer Park 9690 .0 .0 * 27.4 29.5 93 Evening Star 9030 .0 .0 * 47.9 42.2 114 Grave Springs 8560 .1 .0 * 16.5 18.4 90 Hobbs Park 10080 .0 .0 * 27.9 25.8 108 Kirwin 9580 .0 .0 * 30.0 25.5 118 Little Warm 9370 .1 .0 * 27.2 23.2 117 Marquette 8800 .0 .0 * 15.8 24.0 66 Middle Powder 7760 .0 .0 * 21.7 20.1 108 Owl Creek 8990 .0 .0 * 16.4 16.7 98 Powder River Pass 9480 .0 .0 * 22.6 26.2 86 Shell Creek 9570 .0 .0 * 26.2 25.5 103 South Pass 9040 .1 .0 * 23.7 25.0 95 St. Lawrence Alt 8610 .0 -M * 15.4 -M * Sylvan Lake 8440 .0 .0 * 38.2 37.7 101 Sylvan Road 7140 .0 .0 * 26.3 26.0 101 Timber Creek 7910 .0 .0 * 12.0 20.6 58 Togwotee Pass 9590 .0 .0 * 42.3 36.9 115 Townsend Creek 8720 .2 .0 * 20.6 24.2 85 Younts Peak 8340 1.2 .0 * -M 26.6 * ----- ----- Basin Index (%) * 98 TONGUE RIVER BASIN (WYOMING) Big Goose 8010 -M .0 * 19.3 23.6 82 Bone Springs Div 9340 .0 .0 * 20.8 28.4 73 Burgess Junction 7910 .0 .0 * 22.8 24.3 94 Dome Lake 8890 .0 .0 * 24.8 27.6 90 Little Goose 8560 .0 .0 * 22.1 25.8 86 Sucker Creek 8840 .0 .0 * 25.5 28.6 89 Tie Creek 7050 .0 .0 * 19.9 25.2 79 ----- ----- Basin Index (%) * 85 POWDER RIVER BASIN (WYOMING) Bear Trap Meadow 8200 .2 .0 * 15.9 19.2 83 Cloud Peak Reservoir 9830 .0 .0 * 28.8 28.8 100 Grave Springs 8560 .1 .0 * 16.5 18.4 90 Hanson Sawmill 8360 .0 .0 * 17.5 21.7 81 Middle Powder 7760 .0 .0 * 21.7 20.1 108 Powder River Pass 9480 .0 .0 * 22.6 26.2 86 Soldier Park 8680 .0 .0 * 15.4 21.6 71 ----- ----- Basin Index (%) * 89 Missouri River Basin ab Ft. Peck Albro Lake 8500 .0 .0 * 37.2 35.3 105 Badger Pass 6870 .0 .0 * -M 47.6 * Barker Lakes 8250 .0 .0 * 32.4 31.9 102 Basin Creek 7120 .0 .0 * 17.8 22.7 78 Beagle Springs 8880 .2 .0 * 21.6 21.6 100 Beaver Creek 7820 .0 .0 * 34.5 34.2 101 Black Bear 8160 .0 .0 * 51.8 53.0 98 Bloody Dick 7570 .0 .0 * 24.6 24.2 102 Boulder Mountain 7890 .0 .0 * 40.6 37.2 109 Brackett Creek 7370 .1 .0 * 43.2 44.8 96 Calvert Creek 6410 .0 .0 * 23.2 18.2 127 Canyon 7870 .0 .0 * 28.0 26.7 105 Carrot Basin 9200 .0 .0 * 45.3 44.7 101 Clover Meadow 8770 .4 .0 * 28.6 30.9 93 Crystal Lake 6130 .0 .0 * 37.7 39.6 95 Daisy Peak 7590 .0 .0 * 19.5 25.0 78 Darkhorse Lake 8930 .0 .0 * 45.6 43.0 106 Deadman Creek 6440 .0 .0 * 26.0 25.8 101 Divide 7770 .1 .0 * 26.4 23.2 114 Dupuyer Creek 5740 .0 .0 * 38.6 26.4 146 Elk Peak 7600 -M -M * -M -M * Frohner Meadow 6520 .0 .0 * 25.8 22.4 115 JL Meadow 8750 -M -M * 27.6 -M * Lakeview Ridge 7340 .1 .0 * 31.2 24.8 126 Lemhi Ridge 8080 .0 .0 * 22.8 24.0 95 Lick Creek 6880 .0 .0 * 27.5 28.4 97 Lone Mountain 8820 .1 .0 * 29.4 32.2 91 Lower Twin 7920 .1 .0 * 34.3 38.0 90 Madison Plateau 7710 .0 .0 * 39.5 39.1 101 Moose Creek 6170 .0 .0 * 32.9 29.9 110 Mount Lockhart 6430 .0 .0 * 58.2 39.5 147 Mule Creek 8300 .0 .0 * 26.9 28.8 93 Nevada Ridge 7030 .0 .0 * 32.3 27.4 118 Onion Park 7420 .0 .0 * 31.8 33.1 96 Pickfoot Creek 6680 .2 -M * 33.4 -M * Pike Creek 5930 .0 -M * 57.6 -M * Rocker Peak 7960 .0 .0 * 30.7 28.0 110 Sacajawea 6610 .0 .0 * 42.5 41.8 102 Saddle Mtn. 7890 .0 .0 * 33.5 34.6 97 Short Creek 6990 .0 .0 * 17.1 16.9 101 Shower Falls 8060 .0 .0 * 42.8 44.9 95 Slagamelt Lakes 8600 .3 -M * 48.0 -M * Spur Park 8080 .0 .0 * 31.0 32.2 96 Stringer Creek 6550 .0 .0 * 30.0 28.9 104 Tepee Creek 7950 .0 .0 * 28.4 24.8 115 Tizer Basin 6880 .0 .0 * 26.8 24.7 109 Waldron 5640 .1 .0 * 41.1 28.4 145 West Yellowstone 6680 .4 .0 * 24.5 23.7 103 Whiskey Creek 6790 .1 .0 * 34.3 32.2 107 White Elephant 7670 .0 .0 * 43.2 43.9 98 Wood Creek 5970 .0 .0 * 34.4 26.9 128 ----- ----- Basin Index (%) * 105 Yellowstone River Basin ab Glendive Bald Mtn. 9360 .0 .0 * 26.4 29.4 90 Bear Trap Meadow 8200 .2 .0 * 15.9 19.2 83 Beartooth Lake 9360 .0 .0 * 38.9 33.6 116 Big Goose 8010 -M .0 * 19.3 23.6 82 Blackwater 9830 .0 .0 * 39.7 35.0 113 Bone Springs Div 9340 .0 .0 * 20.8 28.4 73 Box Canyon 6720 .0 .0 * 27.5 22.8 121 Brackett Creek 7370 .1 .0 * 43.2 44.8 96 Burgess Junction 7910 .0 .0 * 22.8 24.3 94 Burnt Mtn 5920 .0 .0 * 22.7 26.5 86 Burroughs Creek 8760 -M -M * 29.0 -M * Canyon 7870 .0 .0 * 28.0 26.7 105 Castle Creek 8410 .2 .0 * 15.3 16.9 91 Cloud Peak Reservoir 9830 .0 .0 * 28.8 28.8 100 Cold Springs 9640 .0 .0 * 22.3 19.8 113 Cole Creek 7910 .0 .0 * 19.7 28.5 69 Deer Park 9690 .0 .0 * 27.4 29.5 93 Dome Lake 8890 .0 .0 * 24.8 27.6 90 East Boulder Mine 6310 .0 .0 * 25.0 27.2 92 Evening Star 9030 .0 .0 * 47.9 42.2 114 Fisher Creek 9110 .0 .0 * 52.9 50.2 105 Grave Springs 8560 .1 .0 * 16.5 18.4 90 Hanson Sawmill 8360 .0 .0 * 17.5 21.7 81 Hobbs Park 10080 .0 .0 * 27.9 25.8 108 Kirwin 9580 .0 .0 * 30.0 25.5 118 Little Goose 8560 .0 .0 * 22.1 25.8 86 Little Warm 9370 .1 .0 * 27.2 23.2 117 Marquette 8800 .0 .0 * 15.8 24.0 66 Middle Powder 7760 .0 .0 * 21.7 20.1 108 Monument Peak 8740 .1 .0 * 40.6 37.0 110 Northeast Entrance 7420 .0 .0 * 27.4 23.5 117 Owl Creek 8990 .0 .0 * 16.4 16.7 98 Parker Peak 9420 .0 .0 * 38.8 31.8 122 Placer Basin 8790 .0 .0 * 38.8 34.8 111 Porcupine 6480 .1 .0 * 27.2 24.4 111 Powder River Pass 9480 .0 .0 * 22.6 26.2 86 S Fork Shields 8090 .0 .0 * 41.0 39.8 103 Sacajawea 6610 .0 .0 * 42.5 41.8 102 Shell Creek 9570 .0 .0 * 26.2 25.5 103 Shower Falls 8060 .0 .0 * 42.8 44.9 95 Soldier Park 8680 .0 .0 * 15.4 21.6 71 South Pass 9040 .1 .0 * 23.7 25.0 95 St. Lawrence Alt 8610 .0 -M * 15.4 -M * Sucker Creek 8840 .0 .0 * 25.5 28.6 89 Sylvan Lake 8440 .0 .0 * 38.2 37.7 101 Sylvan Road 7140 .0 .0 * 26.3 26.0 101 Thumb Divide 7970 .0 .0 * 29.9 28.2 106 Tie Creek 7050 .0 .0 * 19.9 25.2 79 Timber Creek 7910 .0 .0 * 12.0 20.6 58 Togwotee Pass 9590 .0 .0 * 42.3 36.9 115 Townsend Creek 8720 .2 .0 * 20.6 24.2 85 Two Ocean Plateau 9240 .0 .0 * 44.7 40.2 111 White Mill 8730 .0 .0 * 39.4 37.8 104 Wolverine 7660 .0 .0 * 27.5 21.2 130 Younts Peak 8340 1.2 .0 * -M 26.6 * ----- ----- Basin Index (%) * 99 ----------------------------------------------------------------------------- -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.