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 THURSDAY: JANUARY 15 , 2026 ------------------------------------------------------------------------------ BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION Data Site Name (Ft) % % Current Median Median Current Median Med ------------------------------------------------------------------------------ UPPER COLORADO RIVER BASIN UPPER GREEN RIVER BASIN Big Sandy Opening 9100 7.2 6.8 106 7.7 7.0 110 Blacks Fork Jct 8880 4.5 3.8 118 6.7 6.6 102 Blind Bull Sum 8880 17.0 12.4 137 13.0 10.5 124 Buck Pasture 9630 7.2 -M * 9.5 -M * East Rim Divide 8010 5.6 5.4 104 8.6 6.4 134 EF Blacks Fork GS 9360 2.8 4.4 64 6.5 5.6 116 Elkhart Park G.S. 9410 7.5 6.4 117 9.1 6.9 132 Gros Ventre Summit 8760 9.6 7.2 133 11.7 6.8 172 Gunsight Pass 9820 10.1 7.0 144 12.4 7.5 165 Hams Fork 7860 6.8 5.6 121 9.1 5.9 154 Hewinta 9510 3.0 4.7 64 7.1 7.2 99 Hickerson Park 9120 2.6 3.3 79 5.2 5.4 96 Hole-in-Rock 9170 1.7 3.5 49 5.8 5.6 104 Indian Creek 9400 14.4 11.6 124 15.0 10.6 142 Kelley R.S. 8240 8.1 7.2 112 12.7 9.1 140 Kendall R.S. 7790 9.1 6.4 142 12.9 7.5 172 Kings Cabin 8740 2.5 4.2 60 7.6 6.6 115 Loomis Park 8240 9.1 7.8 117 11.8 9.2 128 New Fork Lake 8380 6.4 5.7 112 9.6 6.0 160 Pocket Creek 9370 -M -M * -M -M * Snider Basin 8080 5.8 6.3 92 10.3 7.4 139 Spirit Lk 10240 6.5 5.6 116 10.0 8.5 118 Spring Creek Divide 9020 15.2 11.8 129 17.8 12.5 142 Steel Creek Park 10140 6.9 7.0 99 9.0 8.7 103 Triple Peak 8520 16.5 11.4 145 20.2 12.8 158 Trout Creek 9440 3.1 3.7 84 6.0 6.5 92 ----- ----- Basin Index (%) 114 132 DUCHESNE RIVER BASIN Brown Duck 10570 8.6 8.2 105 11.9 9.4 127 Chepeta 10490 6.1 6.6 92 8.9 7.6 117 Currant Creek 7920 3.3 4.5 73 7.2 7.0 103 Daniels-Strawberry 8010 3.9 6.7 58 9.1 9.4 97 Five Points Lake 10920 9.0 7.8 115 11.0 10.0 110 Wilbur Bench 9170 4.1 4.8 85 8.2 7.4 111 Kings Cabin 8740 2.5 4.2 60 7.6 6.6 115 Lakefork #1 10120 5.6 6.2 90 10.1 7.6 133 Lakefork #3 8430 1.3 3.4 38 6.0 5.7 105 Lakefork Basin 10890 10.6 9.1 116 13.5 12.1 112 Mosby Mtn. 9550 4.0 5.3 75 6.9 6.6 105 Rock Creek 7880 2.2 3.6 61 8.7 5.8 150 Strawberry Divide 8100 4.0 7.4 54 8.8 9.2 96 Trial Lake 9970 11.0 9.8 112 12.4 11.4 109 White River #1 8620 3.5 5.0 70 7.2 6.7 107 ----- ----- Basin Index (%) 86 112 YAMPA/WHITE RIVER BASINS Battle Mountain 7460 2.8 5.6 50 9.0 8.2 110 Bear River 9100 2.7 5.8 47 5.1 7.8 65 Bison Lake 10950 6.3 11.8 53 11.6 13.2 88 Buffalo Park 9240 4.3 6.6 65 6.7 8.8 76 Burro Mountain 9290 4.1 7.8 53 8.9 10.5 85 Columbine 9170 10.2 11.4 89 12.1 12.8 95 Crosho 8960 3.6 6.4 56 6.8 7.7 88 Divide Peak 8700 6.2 9.8 63 10.1 12.0 84 Dry Lake 8240 8.3 10.4 80 10.7 12.8 84 Elk River 8710 6.7 8.5 79 10.9 10.2 107 Little Snake River 8930 12.1 13.2 92 17.6 18.4 96 Lost Dog 9350 9.3 10.6 88 12.0 13.3 90 Lynx Pass 8910 2.8 5.4 52 5.3 6.7 79 Old Battle 9840 13.9 15.5 90 18.9 18.0 105 Rabbit Ears 9390 8.0 11.4 70 11.5 15.0 77 Ripple Creek 10340 7.6 12.8 59 10.6 13.0 82 Sage Creek Basin 7830 3.7 6.8 54 6.7 7.7 87 Sandstone RS 8150 5.5 6.4 86 9.2 9.5 97 Tower 10610 17.6 20.8 85 19.7 20.8 95 Trapper Lake 9750 3.6 -M * 7.4 10.1 73 Whiskey Park 8950 12.6 12.5 101 17.1 15.4 111 ----- ----- Basin Index (%) 74 90 PRICE-SAN RAFAEL Buck Flat 9410 5.0 7.7 65 8.4 9.7 87 Clear Creek #1 8960 4.3 7.7 56 8.7 9.5 92 Corral 8210 1.2 -M * 8.2 -M * Huntington Horse 9650 8.6 -M * 11.0 -M * Mammoth-Cottonwood 8710 4.3 8.8 49 8.2 8.0 102 Red Pine Ridge 8990 3.4 5.6 61 8.3 9.2 90 Seeley Creek 9900 4.1 5.7 72 5.9 6.9 86 Timberline 8720 2.7 3.9 69 7.8 9.6 81 Upper Joes Valley 8600 2.2 -M * 6.3 -M * White River #1 8620 3.5 5.0 70 7.2 6.7 107 Wrigley Creek 9330 3.4 -M * 6.4 -M * ----- ----- Basin Index (%) 61 91 ESCALANTE RIVER BASINS Clayton Springs 10010 4.6 5.4 85 7.4 6.9 107 Donkey Reservoir 9800 2.4 3.6 67 4.9 5.0 98 Sunflower Flat 10010 7.4 -M * 13.8 -M * Widtsoe #3 9640 4.3 4.9 88 8.0 7.2 111 ----- ----- Basin Index (%) 81 106 DIRTY DEVIL RIVER BASIN Black Flat-U.M. Ck 9420 2.2 4.0 55 5.1 6.0 85 Dills Camp 9240 3.5 5.2 67 7.3 9.0 81 Donkey Reservoir 9800 2.4 3.6 67 4.9 5.0 98 Fish Lake Utah 8780 .3 4.7 6 4.5 4.8 94 Lonesome Beaver 9530 1.4 -M * 7.2 -M * Sunflower Flat 10010 7.4 -M * 13.8 -M * ----- ----- Basin Index (%) 48 88 UPPER COLORADO RIVER HEADWATERS Arapaho Ridge 10960 8.0 11.4 70 9.5 12.2 78 Beaver Ck Village 8530 2.8 6.4 44 5.7 8.6 66 Berthoud Summit 11300 5.6 8.8 64 8.5 11.6 73 Bison Lake 10950 6.3 11.8 53 11.6 13.2 88 Buffalo Park 9240 4.3 6.6 65 6.7 8.8 76 Columbine 9170 10.2 11.4 89 12.1 12.8 95 Copper Mountain 10500 3.7 7.0 53 5.5 7.7 71 Elliot Ridge 10550 6.1 8.7 70 7.6 -M * Fool Creek 11130 6.5 -M * 7.6 -M * Fremont Pass 11310 3.5 8.2 43 4.9 8.4 58 Grizzly Peak 11110 4.9 8.2 60 6.0 8.2 73 High Lonesome 10630 5.6 -M * 6.6 -M * Hoosier Pass 11600 3.5 7.9 44 4.5 8.1 56 Lake Irene 10680 7.1 11.6 61 8.4 11.4 74 Lynx Pass 8910 2.8 5.4 52 5.3 6.7 79 Phantom Valley 9030 3.0 5.1 59 5.0 7.8 64 Stillwater Creek 8760 2.2 -M * 3.5 5.2 67 Summit Ranch 9350 3.2 5.6 57 5.2 6.6 79 Vail Mountain 10290 4.4 9.0 49 6.8 10.3 66 Willow Creek Pass 9520 3.2 6.6 48 5.3 7.1 75 ----- ----- Basin Index (%) 59 74 ROARING FORK RIVER BASIN Chapman Tunnel 10090 4.0 7.5 53 6.3 8.8 72 Independence Pass 10570 3.8 8.4 45 5.1 8.8 58 Ivanhoe 10540 5.0 7.2 69 6.0 10.4 58 Kiln 9610 3.2 6.2 52 4.5 7.4 61 Mc Clure Pass 8760 4.2 8.0 52 9.4 11.3 83 Nast Lake 8710 3.0 4.0 75 4.1 6.2 66 North Lost Trail 9190 5.0 7.2 69 9.4 10.6 89 Schofield Pass 10640 9.3 14.6 64 12.8 15.2 84 ----- ----- Basin Index (%) 59 73 SOUTH EASTERN UTAH Buckboard Flat 8920 2.6 -M * 13.9 -M * Camp Jackson 8840 1.8 5.8 31 12.5 9.4 133 East Willow Creek 8300 .8 3.8 21 7.0 6.0 117 Lasal Mountain 9580 4.2 5.6 75 9.2 9.6 96 Lasal Mountain-Lower 8780 1.3 -M * 7.1 -M * Lonesome Beaver 9530 1.4 -M * 7.2 -M * ----- ----- Basin Index (%) 45 115 GUNNISON RIVER BASIN Butte 10190 4.4 6.7 66 6.3 8.0 79 Cochetopa Pass 10020 2.5 2.6 96 4.0 4.1 98 Columbine Pass 9160 6.4 8.2 78 11.8 11.2 105 Idarado 9780 3.7 6.6 56 10.2 10.0 102 Mc Clure Pass 8760 4.2 8.0 52 9.4 11.3 83 Mesa Lakes 10160 4.0 7.8 51 10.5 10.6 99 Overland Res. 9890 3.1 5.8 53 8.0 8.8 91 Park Cone 9600 2.5 4.7 53 5.2 6.0 87 Park Reservoir 9990 6.4 11.6 55 12.8 13.1 98 Porphyry Creek 10790 5.8 7.2 81 7.8 7.2 108 Red Mountain Pass 11060 5.6 10.8 52 13.1 14.0 94 Sargents Mesa 11490 3.9 5.4 72 6.5 6.8 96 Schofield Pass 10640 9.3 14.6 64 12.8 15.2 84 Slumgullion 11560 4.2 7.4 57 8.2 7.6 108 Upper Taylor 10710 4.3 6.2 69 6.9 9.0 77 Wager Gulch 11110 2.9 -M * 8.9 -M * ----- ----- Basin Index (%) 62 93 DOLORES/SAN MIGUEL RIVER BASINS Black Mesa 11580 7.2 -M * 11.6 -M * El Diente Peak 10210 4.1 5.8 71 10.3 10.0 103 Lizard Head Pass 10190 4.6 7.3 63 9.6 8.9 108 Lone Cone 9730 5.7 7.8 73 10.6 10.4 102 Mancos 10020 4.5 7.7 58 9.1 8.4 108 Mineral Creek 10030 3.2 7.0 46 10.4 9.2 113 Red Mountain Pass 11060 5.6 10.8 52 13.1 14.0 94 Scotch Creek 9160 3.8 5.4 70 7.9 8.6 92 Sharkstooth 10730 5.7 7.5 76 11.1 11.6 96 ----- ----- Basin Index (%) 63 101 SAN JUAN RIVER HEADWATERS Beartown 11580 5.1 11.0 46 17.0 13.0 131 Chamita 8360 2.4 4.8 50 6.6 6.6 100 Lily Pond 11070 3.4 6.3 54 9.9 10.2 97 Middle Creek 11260 4.8 10.8 44 14.6 13.8 106 Stump Lakes 11230 4.8 9.0 53 14.5 10.6 137 Upper San Juan 10140 7.0 12.8 55 19.7 19.0 104 Vallecito 10740 3.9 7.2 54 13.1 10.7 122 Weminuche Creek 10730 4.7 8.8 53 15.7 13.5 116 Wolf Creek Summit 10930 8.2 16.1 51 17.9 17.4 103 ----- ----- Basin Index (%) 51 112 ANIMAS RIVER BASIN Beartown 11580 5.1 11.0 46 17.0 13.0 131 Cascade 8900 -M 6.0 * -M 10.6 * Cascade #2 8990 .9 5.7 16 11.5 10.2 113 Columbus Basin 10780 6.6 11.8 56 16.0 14.4 111 Mineral Creek 10030 3.2 7.0 46 10.4 9.2 113 Molas Lake 10610 4.2 8.6 49 11.2 10.0 112 Red Mountain Pass 11060 5.6 10.8 52 13.1 14.0 94 Spud Mountain 10660 5.9 11.4 52 15.4 14.8 104 Stump Lakes 11230 4.8 9.0 53 14.5 10.6 137 ----- ----- Basin Index (%) 48 113 COLORADO RIVER BASIN ABOVE LAKE POWELL (TOTAL OF ALL SNOTEL SITES) Beartown 11580 5.1 11.0 46 17.0 13.0 131 Black Mesa 11580 7.2 -M * 11.6 -M * Slumgullion 11560 4.2 7.4 57 8.2 7.6 108 Sargents Mesa 11490 3.9 5.4 72 6.5 6.8 96 Hoosier Pass 11600 3.5 7.9 44 4.5 8.1 56 Fremont Pass 11310 3.5 8.2 43 4.9 8.4 58 Berthoud Summit 11300 5.6 8.8 64 8.5 11.6 73 Middle Creek 11260 4.8 10.8 44 14.6 13.8 106 Stump Lakes 11230 4.8 9.0 53 14.5 10.6 137 Red Mountain Pass 11060 5.6 10.8 52 13.1 14.0 94 Fool Creek 11130 6.5 -M * 7.6 -M * Wager Gulch 11110 2.9 -M * 8.9 -M * Grizzly Peak 11110 4.9 8.2 60 6.0 8.2 73 Wolf Creek Summit 10930 8.2 16.1 51 17.9 17.4 103 Lily Pond 11070 3.4 6.3 54 9.9 10.2 97 Arapaho Ridge 10960 8.0 11.4 70 9.5 12.2 78 Five Points Lake 10920 9.0 7.8 115 11.0 10.0 110 Lakefork Basin 10890 10.6 9.1 116 13.5 12.1 112 Vallecito 10740 3.9 7.2 54 13.1 10.7 122 Bison Lake 10950 6.3 11.8 53 11.6 13.2 88 Columbus Basin 10780 6.6 11.8 56 16.0 14.4 111 Porphyry Creek 10790 5.8 7.2 81 7.8 7.2 108 Weminuche Creek 10730 4.7 8.8 53 15.7 13.5 116 Schofield Pass 10640 9.3 14.6 64 12.8 15.2 84 Lake Irene 10680 7.1 11.6 61 8.4 11.4 74 Spud Mountain 10660 5.9 11.4 52 15.4 14.8 104 Upper Taylor 10710 4.3 6.2 69 6.9 9.0 77 High Lonesome 10630 5.6 -M * 6.6 -M * Independence Pass 10570 3.8 8.4 45 5.1 8.8 58 Brown Duck 10570 8.6 8.2 105 11.9 9.4 127 Copper Mountain 10500 3.7 7.0 53 5.5 7.7 71 Elliot Ridge 10550 6.1 8.7 70 7.6 -M * Tower 10610 17.6 20.8 85 19.7 20.8 95 Molas Lake 10610 4.2 8.6 49 11.2 10.0 112 Chepeta 10490 6.1 6.6 92 8.9 7.6 117 Ivanhoe 10540 5.0 7.2 69 6.0 10.4 58 Ripple Creek 10340 7.6 12.8 59 10.6 13.0 82 Vail Mountain 10290 4.4 9.0 49 6.8 10.3 66 Spirit Lk 10240 6.5 5.6 116 10.0 8.5 118 Upper San Juan 10140 7.0 12.8 55 19.7 19.0 104 Lizard Head Pass 10190 4.6 7.3 63 9.6 8.9 108 Butte 10190 4.4 6.7 66 6.3 8.0 79 Steel Creek Park 10140 6.9 7.0 99 9.0 8.7 103 Lakefork #1 10120 5.6 6.2 90 10.1 7.6 133 Chapman Tunnel 10090 4.0 7.5 53 6.3 8.8 72 Clayton Springs 10010 4.6 5.4 85 7.4 6.9 107 Mineral Creek 10030 3.2 7.0 46 10.4 9.2 113 Cumbres Trestle 10030 7.5 12.6 60 12.5 13.8 91 Cochetopa Pass 10020 2.5 2.6 96 4.0 4.1 98 Sunflower Flat 10010 7.4 -M * 13.8 -M * Old Battle 9840 13.9 15.5 90 18.9 18.0 105 Mesa Lakes 10160 4.0 7.8 51 10.5 10.6 99 Mancos 10020 4.5 7.7 58 9.1 8.4 108 El Diente Peak 10210 4.1 5.8 71 10.3 10.0 103 Trial Lake 9970 11.0 9.8 112 12.4 11.4 109 Park Reservoir 9990 6.4 11.6 55 12.8 13.1 98 Seeley Creek 9900 4.1 5.7 72 5.9 6.9 86 Overland Res. 9890 3.1 5.8 53 8.0 8.8 91 Gunsight Pass 9820 10.1 7.0 144 12.4 7.5 165 Idarado 9780 3.7 6.6 56 10.2 10.0 102 Donkey Reservoir 9800 2.4 3.6 67 4.9 5.0 98 Trapper Lake 9750 3.6 -M * 7.4 10.1 73 Huntington Horse 9650 8.6 -M * 11.0 -M * Widtsoe #3 9640 4.3 4.9 88 8.0 7.2 111 Buck Pasture 9630 7.2 -M * 9.5 -M * Park Cone 9600 2.5 4.7 53 5.2 6.0 87 Lone Cone 9730 5.7 7.8 73 10.6 10.4 102 Kiln 9610 3.2 6.2 52 4.5 7.4 61 Lasal Mountain 9580 4.2 5.6 75 9.2 9.6 96 Mosby Mtn. 9550 4.0 5.3 75 6.9 6.6 105 Willow Creek Pass 9520 3.2 6.6 48 5.3 7.1 75 Trout Creek 9440 3.1 3.7 84 6.0 6.5 92 Mc Clure Pass 8760 4.2 8.0 52 9.4 11.3 83 Hewinta 9510 3.0 4.7 64 7.1 7.2 99 Mccoy Park 9500 2.5 7.3 34 8.1 9.8 83 Indian Creek 9400 14.4 11.6 124 15.0 10.6 142 Black Flat-U.M. Ck 9420 2.2 4.0 55 5.1 6.0 85 Buck Flat 9410 5.0 7.7 65 8.4 9.7 87 Summit Ranch 9350 3.2 5.6 57 5.2 6.6 79 Rabbit Ears 9390 8.0 11.4 70 11.5 15.0 77 Elkhart Park G.S. 9410 7.5 6.4 117 9.1 6.9 132 Columbine Pass 9160 6.4 8.2 78 11.8 11.2 105 Burro Mountain 9290 4.1 7.8 53 8.9 10.5 85 Pocket Creek 9370 -M -M * -M -M * EF Blacks Fork GS 9360 2.8 4.4 64 6.5 5.6 116 Wrigley Creek 9330 3.4 -M * 6.4 -M * Lost Dog 9350 9.3 10.6 88 12.0 13.3 90 Buffalo Park 9240 4.3 6.6 65 6.7 8.8 76 Dills Camp 9240 3.5 5.2 67 7.3 9.0 81 North Lost Trail 9190 5.0 7.2 69 9.4 10.6 89 Hole-in-Rock 9170 1.7 3.5 49 5.8 5.6 104 Columbine 9170 10.2 11.4 89 12.1 12.8 95 Hickerson Park 9120 2.6 3.3 79 5.2 5.4 96 Scotch Creek 9160 3.8 5.4 70 7.9 8.6 92 Crosho 8960 3.6 6.4 56 6.8 7.7 88 Big Sandy Opening 9100 7.2 6.8 106 7.7 7.0 110 Bear River 9100 2.7 5.8 47 5.1 7.8 65 Phantom Valley 9030 3.0 5.1 59 5.0 7.8 64 Spring Creek Divide 9020 15.2 11.8 129 17.8 12.5 142 Red Pine Ridge 8990 3.4 5.6 61 8.3 9.2 90 Whiskey Park 8950 12.6 12.5 101 17.1 15.4 111 Middle Fork Camp 8960 3.0 5.9 51 4.4 7.2 61 Buckboard Flat 8920 2.6 -M * 13.9 -M * Cascade #2 8990 .9 5.7 16 11.5 10.2 113 Lynx Pass 8910 2.8 5.4 52 5.3 6.7 79 Divide Peak 8700 6.2 9.8 63 10.1 12.0 84 Cascade 8900 -M 6.0 * -M 10.6 * Blacks Fork Jct 8880 4.5 3.8 118 6.7 6.6 102 Camp Jackson 8840 1.8 5.8 31 12.5 9.4 133 Fish Lake Utah 8780 .3 4.7 6 4.5 4.8 94 Lasal Mountain-Lower 8780 1.3 -M * 7.1 -M * Gros Ventre Summit 8760 9.6 7.2 133 11.7 6.8 172 Timberline 8720 2.7 3.9 69 7.8 9.6 81 Kings Cabin 8740 2.5 4.2 60 7.6 6.6 115 Stillwater Creek 8760 2.2 -M * 3.5 5.2 67 Mammoth-Cottonwood 8710 4.3 8.8 49 8.2 8.0 102 Nast Lake 8710 3.0 4.0 75 4.1 6.2 66 Elk River 8710 6.7 8.5 79 10.9 10.2 107 Blind Bull Sum 8880 17.0 12.4 137 13.0 10.5 124 White River #1 8620 3.5 5.0 70 7.2 6.7 107 Upper Joes Valley 8600 2.2 -M * 6.3 -M * Triple Peak 8520 16.5 11.4 145 20.2 12.8 158 Beaver Ck Village 8530 2.8 6.4 44 5.7 8.6 66 Lakefork #3 8430 1.3 3.4 38 6.0 5.7 105 Dry Lake 8240 8.3 10.4 80 10.7 12.8 84 Chamita 8360 2.4 4.8 50 6.6 6.6 100 New Fork Lake 8380 6.4 5.7 112 9.6 6.0 160 East Willow Creek 8300 .8 3.8 21 7.0 6.0 117 Loomis Park 8240 9.1 7.8 117 11.8 9.2 128 Corral 8210 1.2 -M * 8.2 -M * Kelley R.S. 8240 8.1 7.2 112 12.7 9.1 140 Sandstone RS 8150 5.5 6.4 86 9.2 9.5 97 Strawberry Divide 8100 4.0 7.4 54 8.8 9.2 96 Snider Basin 8080 5.8 6.3 92 10.3 7.4 139 Daniels-Strawberry 8010 3.9 6.7 58 9.1 9.4 97 East Rim Divide 8010 5.6 5.4 104 8.6 6.4 134 Currant Creek 7920 3.3 4.5 73 7.2 7.0 103 Rock Creek 7880 2.2 3.6 61 8.7 5.8 150 Hams Fork 7860 6.8 5.6 121 9.1 5.9 154 Kendall R.S. 7790 9.1 6.4 142 12.9 7.5 172 Battle Mountain 7460 2.8 5.6 50 9.0 8.2 110 ----- ----- Basin Index (%) 72 100 ----------------------------------------------------------------------------- -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.