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 MONDAY: APRIL 19 , 2021 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Average Avg ------------------------------------------------------------------------------ COLUMBIA RIVER BASIN REPORT KOOTENAI RIVER IN MONTANA Banfield Mountain 5600 12.0 16.6 72 23.0 26.2 88 Bear Mountain 5400 47.5 55.6 85 53.3 68.3 78 Garver Creek 4250 8.4 6.6 127 17.9 18.2 98 Grave Creek 4300 7.4 10.2 73 28.5 32.0 89 Hand Creek 5035 5.2 9.2 57 17.2 17.5 98 Hawkins Lake 6450 21.8 26.0 84 31.8 30.4 105 Poorman Creek 5100 30.2 31.5 96 49.9 55.3 90 Stahl Peak 6030 27.8 36.3 77 40.1 39.3 102 ----- ----- Basin Index (%) 83 91 FLATHEAD RIVER BASIN Ashley Divide 4820 -M -M * 11.9 -M * Badger Pass 6900 34.2 30.7 111 34.0 34.4 99 Bisson Creek 4920 5.9 8.9 66 15.4 18.1 85 Blacktail Mtn 5650 7.0 -M * 13.6 -M * Emery Creek 4350 6.2 10.9 57 25.2 24.6 102 Flattop Mtn. 6300 46.0 42.9 107 51.1 48.2 106 Grave Creek 4300 7.4 10.2 73 28.5 32.0 89 Hand Creek 5035 5.2 9.2 57 17.2 17.5 98 Kraft Creek 4750 7.1 -M * 28.1 27.1 104 Many Glacier 4900 5.9 7.4 80 27.6 31.5 88 Moss Peak 6780 34.3 38.6 89 36.1 38.7 93 Noisy Basin 6040 39.1 43.8 89 37.8 46.0 82 North Fork Jocko 6330 36.2 41.5 87 46.1 49.0 94 Pike Creek 5930 1.2 -M * 31.8 31.3 102 Sleeping Woman 6150 13.1 13.4 98 23.2 21.7 107 Stahl Peak 6030 27.8 36.3 77 40.1 39.3 102 Stuart Mountain 7400 30.7 30.0 102 28.6 32.7 87 ----- ----- Basin Index (%) 90 96 UPPER CLARK FORK RIVER BASIN Barker Lakes 8250 13.4 15.6 86 14.0 18.0 78 Basin Creek 7180 5.7 8.8 65 -M 11.0 * Black Pine 7210 9.7 9.8 99 13.1 14.5 90 Combination 5600 1.8 1.7 106 8.4 9.7 87 Copper Bottom 5200 .2 -M * 18.2 16.3 112 Copper Camp 6950 25.8 -M * 26.1 32.9 79 Lubrecht Flume 4680 .4 .0 * 12.4 10.8 115 Nevada Ridge 7020 15.1 13.3 114 16.5 17.0 97 N Fk Elk Creek 6250 10.7 9.8 109 16.5 14.9 111 North Fork Jocko 6330 36.2 41.5 87 46.1 49.0 94 Peterson Meadows 7200 8.8 10.5 84 10.9 13.4 81 Rocker Peak 8000 15.0 14.1 106 13.9 15.2 91 Skalkaho Summit 7250 19.3 21.7 89 24.9 23.6 106 Stuart Mountain 7400 30.7 30.0 102 28.6 32.7 87 Warm Springs 7800 23.5 21.2 111 20.3 24.0 85 ----- ----- Basin Index (%) 96 92 BITTERROOT Daly Creek 5780 5.1 6.7 76 15.4 14.3 108 Lolo Pass 5240 -M 20.5 * 33.4 34.8 96 Moose Creek 6200 11.0 14.1 78 22.6 20.9 108 Nez Perce Camp 5650 15.3 11.8 130 22.9 21.1 109 Saddle Mtn. 7940 22.8 23.9 95 21.5 24.7 87 Skalkaho Summit 7250 19.3 21.7 89 24.9 23.6 106 Twelvemile Creek 5600 13.8 9.1 152 37.2 32.5 114 Twin Lakes 6400 40.1 33.8 119 47.0 46.6 101 ----- ----- Basin Index (%) 105 103 LOWER CLARK FORK RIVER BASIN Hoodoo Basin 6050 35.5 40.0 89 37.7 48.3 78 Humboldt Gulch 4250 14.4 5.3 272 35.6 37.8 94 Lolo Pass 5240 -M 20.5 * 33.4 34.8 96 Lookout 5190 24.3 25.3 96 35.4 40.5 87 Poorman Creek 5100 30.2 31.5 96 49.9 55.3 90 Sleeping Woman 6150 13.1 13.4 98 23.2 21.7 107 Stuart Mountain 7400 30.7 30.0 102 28.6 32.7 87 Sunset 5540 17.6 20.8 85 27.5 38.2 72 ----- ----- Basin Index (%) 100 88 IDAHO PANHANDLE REGION Bear Mountain 5400 47.5 55.6 85 53.3 68.3 78 Bunchgrass Mdw 5000 21.2 26.5 80 29.6 36.5 81 Humboldt Gulch 4250 14.4 5.3 272 35.6 37.8 94 Lookout 5190 24.3 25.3 96 35.4 40.5 87 Lost Lake 6110 51.0 53.4 96 57.7 60.7 95 Mica Creek 4510 18.0 16.9 107 37.8 42.8 88 Mosquito Ridge 5260 25.8 31.0 83 35.1 45.3 77 Quartz Peak 4700 10.6 17.3 61 33.2 34.3 97 Schweitzer Basin 6090 40.2 46.8 86 32.3 41.2 78 Sherwin 3200 .1 1.5 7 26.7 29.3 91 Sunset 5540 17.6 20.8 85 27.5 38.2 72 ----- ----- Basin Index (%) 90 85 COLUMBIA ABOVE METHOW Bunchgrass Mdw 5000 21.2 26.5 80 29.6 36.5 81 Harts Pass 6490 57.2 41.9 137 42.3 -M * Moses Mtn 5010 12.4 12.6 98 14.5 19.9 73 Salmon Meadows 4460 3.2 5.1 63 13.8 14.5 95 ----- ----- Basin Index (%) 109 82 CHELAN, ENTIAT, WENATCHEE Blewett Pass 4240 -M 7.9 * -M 29.3 * Lyman Lake 5980 61.2 61.4 100 68.0 65.1 104 Wilson Creek 7120 6.0 9.3 65 17.1 18.6 92 Park Creek Ridge 4600 53.7 42.0 128 60.4 57.9 104 Pope Ridge 3590 8.6 10.9 79 29.5 29.1 101 Stevens Pass 3950 56.3 36.9 153 78.9 73.5 107 Trough 5480 7.8 4.6 170 20.5 20.6 100 Upper Wheeler 4330 6.9 11.0 63 19.1 20.6 93 ----- ----- Basin Index (%) 114 103 YAKIMA, AHTANUM Bumping Ridge 4610 29.2 24.7 118 54.8 51.0 107 Fish Lake 3430 36.9 27.6 134 59.5 53.4 111 Green Lake 5920 25.9 21.4 121 31.8 30.1 106 Grouse Camp 5390 11.1 -M * 24.6 26.2 94 Lost Horse 5120 11.7 14.4 81 20.1 28.1 72 Morse Lake 5410 -M 54.0 * 66.0 68.5 96 Sasse Ridge 4340 37.9 28.8 132 54.2 50.2 108 White Pass E.S. 4440 31.8 20.0 159 42.2 36.3 116 ----- ----- Basin Index (%) 127 103 SNAKE ABOVE PALISADES Base Camp 7060 13.0 12.0 108 18.3 21.7 84 Blind Bull Sum 8650 19.7 24.0 82 13.3 20.1 66 Cottonwood Creek 7670 16.9 18.8 90 23.5 25.7 91 East Rim Divide 7930 2.9 9.6 30 8.8 12.2 72 Granite Creek 6770 12.3 11.1 111 15.8 20.2 78 Grassy Lake 7265 25.3 31.5 80 31.2 37.2 84 Gros Ventre Summit 8750 9.5 13.2 72 10.7 13.6 79 Lewis Lake Divide 7850 23.1 30.3 76 29.4 36.6 80 Loomis Park 8240 9.5 13.1 73 13.8 17.9 77 Phillips Bench 8200 20.9 25.7 81 23.7 29.0 82 Salt River Summit 7640 10.1 10.0 101 13.5 17.3 78 Spring Creek Divide 9000 21.5 23.5 91 22.5 24.6 91 Togwotee Pass 9580 22.6 23.7 95 25.0 25.5 98 Two Ocean Plateau 9240 25.8 27.9 92 22.2 28.4 78 Willow Creek 8080 19.8 26.8 74 26.2 35.1 75 ----- ----- Basin Index (%) 84 82 HENRYS FORK, TETON, WILLOW, BLACKFOOT, PORTNEUF Black Bear 8170 -M 36.8 * 31.1 39.6 79 Crab Creek 6900 7.9 12.5 63 10.2 17.3 59 Grassy Lake 7265 25.3 31.5 80 31.2 37.2 84 Island Park 6290 8.5 11.4 75 15.6 18.9 83 Lewis Lake Divide 7850 23.1 30.3 76 29.4 36.6 80 Madison Plateau 7750 19.6 22.9 86 20.9 27.4 76 Phillips Bench 8200 20.9 25.7 81 23.7 29.0 82 Pine Creek Pass 6720 11.7 11.2 104 21.5 22.2 97 Sedgwick Peak 7850 13.3 17.4 76 17.0 22.8 75 Sheep Mtn. 6650 9.9 6.3 157 14.2 17.2 83 Slug Creek Divide 7225 6.5 9.9 66 16.5 21.6 76 Somsen Ranch 6800 6.7 7.0 96 14.1 17.3 82 Whiskey Creek 6800 13.4 15.2 88 17.6 21.1 83 White Elephant 7710 18.5 24.8 75 20.9 31.1 67 Wildhorse Divide 6490 10.6 13.1 81 15.5 20.7 75 ----- ----- Basin Index (%) 82 79 BIG AND LITTLE WOOD BASINS Camas Creek Divide 5710 .0 3.3 0 13.9 17.1 81 Chocolate Gulch 6310 6.0 9.5 63 10.7 16.2 66 Dollarhide Summit 8420 15.0 -M * 15.8 27.5 57 Galena 7470 8.8 14.3 62 12.9 19.6 66 Galena Summit 8780 14.3 18.3 78 15.3 21.4 71 Garfield R.S. 6560 .0 3.8 0 6.7 13.6 49 Hyndman 7620 5.8 10.2 57 10.0 17.0 59 Lost-Wood Divide 7900 8.6 16.7 51 11.9 22.4 53 Swede Peak 7640 5.3 12.8 41 11.2 18.3 61 Vienna Mine 8960 23.0 31.9 72 24.8 31.3 79 ----- ----- Basin Index (%) 59 65 BIG AND LITTLE LOST BASINS Bear Canyon 7900 4.8 13.7 35 11.2 17.6 64 Hilts Creek 8000 6.8 11.1 61 9.4 14.3 66 Lost-Wood Divide 7900 8.6 16.7 51 11.9 22.4 53 Meadow Lake 9150 11.3 14.9 76 12.9 18.6 69 Moonshine 7440 7.4 6.9 107 10.7 13.5 79 Stickney Mill 7430 .0 5.2 0 -M 11.5 * ----- ----- Basin Index (%) 57 65 RAFT, GOOSE, SALMON FALLS, BRUNEAU Bear Creek 8040 13.7 17.9 77 19.6 24.2 81 Big Bend 6898 .1 1.0 10 9.5 11.3 84 Bostetter R.S. 7500 11.9 13.1 91 17.1 18.0 95 Howell Canyon 7980 21.6 22.6 96 23.1 28.3 82 Magic Mountain 6880 12.4 14.0 89 16.1 23.5 69 Pole Creek R.S. 8360 19.2 20.0 96 10.8 12.9 84 Seventysix Creek 7350 2.7 4.2 64 11.6 14.8 78 Wilson Creek 7120 6.0 9.3 65 17.1 18.6 92 ----- ----- Basin Index (%) 86 82 WEISER, PAYETTE, BOISE Atlanta Summit 7580 19.6 26.2 75 25.2 34.0 74 Banner Summit 7040 16.5 22.2 74 24.5 30.8 80 Bear Basin 5350 16.1 14.6 110 21.2 26.0 82 Bear Saddle 6180 18.3 15.2 120 23.5 27.2 86 Big Creek Summit 6560 23.6 29.7 79 25.5 36.6 70 Brundage Reservoir 6250 20.1 26.3 76 29.3 37.9 77 Cozy Cove 5400 6.0 7.5 80 19.1 25.5 75 Deadwood Summit 6860 29.6 39.7 75 32.1 46.1 70 Dollarhide Summit 8420 15.0 -M * 15.8 27.5 57 Graham Guard Sta. 5690 2.0 6.0 33 19.0 22.9 83 Jackson Peak 7070 21.9 25.8 85 28.3 34.1 83 Mores Creek Summit 6100 18.0 27.0 67 29.6 36.1 82 Prairie 4800 .0 .0 * 13.8 16.7 83 Secesh Summit 6540 23.3 29.5 79 26.1 34.7 75 Squaw Flat 6240 8.0 18.7 43 22.9 32.6 70 Trinity Mtn. 7770 23.8 35.9 66 29.2 41.0 71 Vienna Mine 8960 23.0 31.9 72 24.8 31.3 79 West Branch 5560 10.7 15.3 70 26.8 32.1 83 ----- ----- Basin Index (%) 76 76 OWYHEE MALHEUR Big Bend 6898 .1 1.0 10 9.5 11.3 84 Blue Mountain Spring 5870 6.2 11.0 56 21.0 26.2 80 Fawn Creek 7031 9.6 14.5 66 14.7 23.9 62 Jack Creek Upper 7377 13.9 16.0 87 16.5 20.7 80 Jacks Peak 8424 -M -M * 17.7 26.6 67 Lake Creek R.S. 5240 .0 .0 * 16.4 19.3 85 Laurel Draw 6682 .4 2.1 19 13.6 19.3 70 Mud Flat 5730 -M .0 * 6.8 11.8 58 South Mtn. 6500 1.0 12.1 8 18.6 25.6 73 Taylor Canyon 6325 .0 .0 * 6.3 8.8 72 ----- ----- Basin Index (%) 55 73 GRAND RONDE, POWDER, BURNT, IMNAHA Aneroid Lake #2 7400 -M 24.6 * -M 32.0 * Beaver Reservoir 5150 8.1 3.8 213 19.4 20.5 95 Bourne 5850 8.7 10.2 85 20.7 24.2 86 County Line 4830 .8 .0 * 14.3 15.6 92 Eilertson Meadows 5510 .1 1.6 6 16.5 20.8 79 Gold Center 5410 2.1 .0 * 19.1 18.5 103 Moss Springs 5760 22.8 20.9 109 37.1 36.5 102 Mt. Howard 7910 11.7 17.0 69 25.6 29.6 86 Schneider Meadows 5400 23.6 22.2 106 33.1 38.5 86 Taylor Green 5740 18.3 16.0 114 27.7 28.1 99 Wolf Creek 5630 11.9 12.8 93 19.3 20.8 93 ----- ----- Basin Index (%) 103 92 CLEARWATER AND SALMON Banner Summit 7040 16.5 22.2 74 24.5 30.8 80 Beagle Springs 8850 7.4 9.3 80 8.3 11.2 74 Bear Basin 5350 16.1 14.6 110 21.2 26.0 82 Big Creek Summit 6560 23.6 29.7 79 25.5 36.6 70 Brundage Reservoir 6250 20.1 26.3 76 29.3 37.9 77 Cool Creek 6280 43.7 44.4 98 49.2 56.6 87 Crater Meadows 5960 44.9 41.5 108 52.4 50.7 103 Darkhorse Lake 8945 27.4 29.0 94 24.3 28.6 85 Deadwood Summit 6860 29.6 39.7 75 32.1 46.1 70 Elk Butte 5690 32.3 32.1 101 43.8 46.2 95 Galena 7470 8.8 14.3 62 12.9 19.6 66 Galena Summit 8780 14.3 18.3 78 15.3 21.4 71 Hemlock Butte 5810 45.5 42.0 108 34.9 52.7 66 Hoodoo Basin 6050 35.5 40.0 89 37.7 48.3 78 Lemhi Ridge 8100 9.2 10.4 88 11.9 13.9 86 Lolo Pass 5240 -M 20.5 * 33.4 34.8 96 Lost Lake 6110 51.0 53.4 96 57.7 60.7 95 Meadow Lake 9150 11.3 14.9 76 12.9 18.6 69 Mill Creek Summit 8800 12.6 19.5 65 12.7 19.6 65 Moonshine 7440 7.4 6.9 107 10.7 13.5 79 Moose Creek 6200 11.0 14.1 78 22.6 20.9 108 Morgan Creek 7600 3.9 8.2 48 12.1 15.8 77 Mountain Meadows 6320 20.6 20.5 100 29.7 29.0 102 Nez Perce Camp 5650 15.3 11.8 130 22.9 21.1 109 Saddle Mtn. 7940 22.8 23.9 95 21.5 24.7 87 Savage Pass 6190 23.5 22.8 103 34.0 31.3 109 Secesh Summit 6540 23.3 29.5 79 26.1 34.7 75 Shanghi Summit 4600 21.4 18.5 116 39.0 40.7 96 Sherwin 3200 .1 1.5 7 26.7 29.3 91 Squaw Flat 6240 8.0 18.7 43 22.9 32.6 70 Twelvemile Creek 5600 13.8 9.1 152 37.2 32.5 114 Twin Lakes 6400 40.1 33.8 119 47.0 46.6 101 Vienna Mine 8960 23.0 31.9 72 24.8 31.3 79 West Branch 5560 10.7 15.3 70 26.8 32.1 83 ----- ----- Basin Index (%) 90 86 UMATILLA, WALLA WALLA, WILLOW Arbuckle Mtn 5770 11.5 16.0 72 24.7 26.7 93 Bowman Springs 4530 4.0 .1 4000* 20.5 18.6 110 Emigrant Springs 3800 .0 .0 * 22.1 25.3 87 High Ridge 4920 29.0 17.4 167 41.9 38.4 109 Touchet 5530 25.0 25.4 98 43.8 45.0 97 ----- ----- Basin Index (%) 118 99 DESCHUTES, CROOKED, JOHN DAY Arbuckle Mtn 5770 11.5 16.0 72 24.7 26.7 93 Blue Mountain Spring 5870 6.2 11.0 56 21.0 26.2 80 Cascade Summit 5100 27.0 27.8 97 45.6 53.6 85 Chemult Alternate 4850 .0 .0 * 15.3 22.3 69 Derr. 5850 2.7 6.8 40 18.2 22.2 82 Hogg Pass 4790 12.2 21.4 57 46.5 60.6 77 Irish Taylor 5540 -M 39.8 * -M 55.5 * Lucky Strike 4970 1.7 .2 850* 18.6 19.2 97 New Crescent Lake 4910 .0 .0 * 26.8 32.0 84 Ochoco Meadows 5430 -M 2.2 * 14.8 21.3 69 Starr Ridge 5250 .0 .0 * 12.5 14.8 84 Three Creeks Meadow 5690 2.0 16.6 12 30.2 35.3 86 Tipton 5150 9.4 8.4 112 16.2 18.3 89 ----- ----- Basin Index (%) 67 82 LOWER COLUMBIA, HOOD RIVER Madison Butte 5150 .0 .0 * 12.3 14.4 85 Blazed Alder 3650 32.3 25.8 125 101.6 97.6 104 Clear Lake 3810 9.5 6.6 144 29.2 35.8 82 Greenpoint 3310 14.3 10.4 138 58.7 60.1 98 North Fork 3060 22.4 14.0 160 116.4 117.0 99 Red Hill 4410 55.4 42.6 130 93.9 91.4 103 ----- ----- Basin Index (%) 135 99 WILLAMETTE Summit Lake 5610 36.9 40.6 91 47.4 58.8 81 Irish Taylor 5540 -M 39.8 * -M 55.5 * Cascade Summit 5100 27.0 27.8 97 45.6 53.6 85 Roaring River 4950 27.2 24.4 111 52.6 56.0 94 Holland Meadows 4930 13.1 16.6 79 50.7 61.1 83 Mckenzie 4770 35.9 37.3 96 70.7 77.3 91 Hogg Pass 4790 12.2 21.4 57 46.5 60.6 77 Salt Creek Falls 4220 20.7 15.0 138 49.7 58.9 84 Mud Ridge 4070 28.0 20.8 135 60.1 54.1 111 Little Meadows 4020 30.5 20.0 152 88.1 92.8 95 Clear Lake 3810 9.5 6.6 144 29.2 35.8 82 Santiam Jct. 3740 1.5 .8 188* 54.2 60.7 89 Daly Lake 3690 4.2 1.9 221 52.8 69.1 76 Jump Off Joe 3520 2.7 1.4 193 65.5 67.8 97 Peavine Ridge 3420 5.6 4.7 119 48.0 52.4 92 Clackamas Lake 3400 5.8 2.3 252 41.9 44.2 95 Saddle Mountain 3110 .0 -M * 83.2 83.2 100 Railroad Overpass 2680 .0 .0 * 37.9 42.9 88 Marion Forks 2590 3.3 .4 825* 58.7 66.7 88 Seine Creek 2060 .0 .0 * 56.6 62.3 91 Miller Woods 420 .0 -M * 46.1 -M * ----- ----- Basin Index (%) 109 90 LEWIS, COWLITZ June Lake 3440 51.2 31.2 164 122.7 138.3 89 Lone Pine 3930 44.2 33.2 133 79.5 80.9 98 Paradise 5130 93.0 68.6 136 97.2 93.7 104 Pigtail Peak 5800 57.8 52.9 109 64.1 66.3 97 Potato Hill 4510 38.8 22.3 174 47.5 52.9 90 Sheep Canyon 3990 48.1 34.0 141 107.2 102.7 104 Spencer Meadow 3400 27.9 26.1 107 73.5 82.7 89 Spirit Lake 3520 3.7 .0 * 73.2 71.7 102 Lost Horse 5120 11.7 14.4 81 20.1 28.1 72 Surprise Lakes 4290 51.1 46.0 111 86.1 81.8 105 ----- ----- Basin Index (%) 130 96 WHITE, GREEN, CEDAR, SKYKOMISH, SNOQUALMI, BAKER, SKAGIT Corral Pass 5800 44.6 34.8 128 42.6 47.3 90 Meadows Pass 3230 38.0 17.3 220 94.4 75.2 126 Mount Gardner 2920 8.9 8.7 102 83.4 79.7 105 Tinkham Creek 2990 35.6 23.1 154 93.9 82.8 113 Cougar Mountain 3200 17.5 11.6 151 79.3 74.4 107 Olallie Meadows 4030 -M 52.0 * 98.5 98.9 100 Rainy Pass 4890 41.0 36.7 112 43.8 46.0 95 Sawmill Ridge 4640 41.2 -M * 55.3 -M * Stampede Pass 3850 50.6 41.1 123 72.1 72.0 100 Thunder Basin 4320 -M 27.2 * 57.8 56.7 102 ----- ----- Basin Index (%) 136 105 ----------------------------------------------------------------------------- -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.