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 16 , 2020 ----------------------------------------------------------------------------- STATE PERCENT OF Normal RIVER BASIN Number Snow Water Accum of Sites Equivalent Precip ----------------------------------------------------------------------------- ALASKA ANCHORAGE/SHIP CREEK BASIN ................... 4 of 4 65 114 SUSITNA BASIN ................................ 3 of 5 185 185 NORTHERN KENAI MOUNTAINS ..................... 7 of 7 35 113 SOUTHERN KENAI ............................... 3 of 6 48 138 COPPER BASIN ................................. 2 of 3 99 102 PRINCE WILLIAM SOUND ......................... 1 of 7 * * CHENA BASIN .................................. 1 of 7 * * UPPER TANANA ................................. 2 of 4 113 * KOYUKUK BASIN ................................ 2 of 6 * 142 CENTRAL YUKON BASIN .......................... 0 of 5 * 167 NORTON SOUND ................................. 0 of 4 * 112 KUPARUK-SAGAVANIRKTOK RIVER BASIN ............ 0 of 3 * 150 NORTHWEST ARCTIC RIVER BASIN ................. 0 of 1 * * SOUTHEAST ALASKA BASIN ....................... 1 of 3 * 106 ARIZONA VERDE RIVER BASIN ............................ 5 of 10 167 138 SAN FRANCISCO PEAKS .......................... 1 of 1 149 123 CENTRAL MOGOLLON RIM ......................... 3 of 4 140 135 LITTLE COLORADO - SOUTHERN HEADWATERS ........ 5 of 6 130 123 UPPER SALT RIVER BASIN / WHITE MOUNTAINS ..... 7 of 9 104 106 SAN FRANCISCO / UPPER GILA RIVER BASIN ....... 7 of 8 94 111 CHUSKA MOUNTAINS ............................. 0 of 2 * * CALIFORNIA NORTHERN GREAT BASIN ......................... 4 of 5 136 85 TRUCKEE RIVER ................................ 8 of 9 84 67 LAKE TAHOE ................................... 8 of 8 83 70 CARSON RIVER ................................. 9 of 9 101 72 WALKER RIVER ................................. 7 of 7 73 59 KLAMATH ...................................... 16 of 18 82 64 COLORADO GUNNISON RIVER BASIN ......................... 12 of 16 105 84 UPPER COLORADO RIVER BASIN ................... 27 of 31 106 86 SOUTH PLATTE RIVER BASIN ..................... 17 of 22 117 103 LARAMIE AND NORTH PLATTE RIVER BASINS ........ 12 of 12 109 98 YAMPA AND WHITE RIVER BASINS ................. 19 of 20 115 94 ARKANSAS RIVER BASIN ......................... 7 of 9 113 89 UPPER RIO GRANDE BASIN ....................... 11 of 16 111 82 SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASIN .................. 17 of 19 116 87 IDAHO NORTHERN PANHANDLE REGION .................... 10 of 10 115 93 SPOKANE RIVER BASIN .......................... 9 of 10 98 85 CLEARWATER BASIN ............................. 15 of 16 99 87 SALMON BASIN ................................. 22 of 22 90 75 WEISER BASIN ................................. 4 of 4 90 71 PAYETTE BASIN ................................ 11 of 11 88 69 BOISE BASIN .................................. 9 of 10 89 72 BIG WOOD BASIN ............................... 8 of 9 80 66 LITTLE WOOD BASIN ............................ 5 of 5 69 59 BIG LOST BASIN ............................... 5 of 5 73 62 LITTLE LOST, BIRCH BASINS .................... 4 of 4 90 72 MEDICINE LODGE, BEAVER, CAMAS BASINS ......... 4 of 4 97 85 HENRYS FORK, TETON BASINS .................... 7 of 8 94 90 SNAKE BASIN ABOVE PALISADES .................. 18 of 18 103 91 WILLOW, BLACKFOOT, PORTNEUF BASINS ........... 6 of 6 101 83 SNAKE BASIN ABOVE AMERICAN FALLS ............. 28 of 29 101 87 RAFT BASIN ................................... 1 of 2 116 99 GOOSE CREEK BASIN ............................ 2 of 2 110 96 SALMON FALLS BASIN ........................... 5 of 6 101 88 BRUNEAU BASIN ................................ 5 of 6 108 93 OWYHEE BASIN ................................. 8 of 8 125 86 BEAR RIVER BASIN ............................. 15 of 15 116 94 MONTANA KOOTENAI RIVER BASIN ......................... 8 of 8 111 89 FLATHEAD RIVER BASIN ......................... 13 of 16 118 99 UPPER CLARK FORK RIVER BASIN ................. 13 of 15 105 91 BITTERROOT RIVER BASIN ....................... 7 of 7 99 85 LOWER CLARK FORK RIVER BASIN ................. 7 of 8 95 84 JEFFERSON RIVER BASIN ........................ 19 of 19 99 86 MADISON RIVER BASIN .......................... 11 of 11 93 80 GALLATIN RIVER BASIN ......................... 6 of 7 100 95 MISSOURI HEADWATERS .......................... 30 of 31 97 85 HEADWATERS MISSOURI MAINSTEM ................. 5 of 5 111 101 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS .. 9 of 10 121 99 SUN, TETON AND MARIAS RIVER BASINS ........... 5 of 6 126 96 MISSOURI MAINSTEM RIVER BASIN ................ 19 of 21 123 100 ST. MARY AND MILK RIVER BASINS ............... 3 of 3 130 111 UPPER YELLOWSTONE RIVER BASIN ................ 23 of 24 104 95 WIND RIVER BASIN (WYOMING) ................... 11 of 13 104 73 SHOSHONE RIVER BASIN (WYOMING) ............... 5 of 6 105 95 BIGHORN RIVER BASIN (WYOMING) ................ 14 of 16 114 97 TONGUE RIVER BASIN (WYOMING) ................. 6 of 7 104 80 POWDER RIVER BASIN (WYOMING) ................. 6 of 7 118 111 LOWER YELLOWSTONE RIVER BASIN ................ 29 of 35 108 88 NEVADA NORTHERN GREAT BASIN ......................... 7 of 8 142 89 SNAKE RIVER .................................. 7 of 11 108 94 OWYHEE RIVER ................................. 5 of 5 137 95 UPPER HUMBOLDT RIVER ......................... 9 of 9 110 86 LOWER HUMBOLDT RIVER ......................... 5 of 10 133 89 CLOVER VALLEY & FRANKLIN RIVER ............... 4 of 6 94 85 EASTERN NEVADA BASINS ........................ 3 of 4 99 79 NEW MEXICO RIO CHAMA RIVER BASIN ........................ 4 of 4 107 80 UPPER RIO GRANDE BASIN ....................... 9 of 9 104 82 SANGRE DE CRISTO MOUNTAIN RANGE BASINS ....... 9 of 11 124 98 JEMEZ RIVER BASIN ............................ 3 of 3 105 77 SAN FRANCISCO RIVER BASIN .................... 3 of 3 125 113 GILA RIVER BASIN ............................. 3 of 3 94 110 MIMBRES RIVER BASIN .......................... 2 of 2 75 133 PECOS RIVER BASIN ............................ 1 of 1 104 93 SAN JUAN RIVER HEADWATERS .................... 5 of 5 106 82 ANIMAS RIVER BASIN ........................... 7 of 7 117 93 CIMARRON RIVER BASIN ......................... 2 of 2 127 99 ZUNI/BLUEWATER RIVER BASIN ................... 1 of 1 106 98 RIO HONDO BASIN .............................. 1 of 1 54 143 CHUSKA MOUNTAINS ............................. 0 of 1 * * OREGON OWYHEE ....................................... 8 of 8 125 86 MALHEUR ...................................... 3 of 3 94 72 GRANDE RONDE, POWDER, BURNT, IMNAHA .......... 15 of 17 93 84 UMATILLA, WALLA WALLA, WILLOW ................ 7 of 8 93 77 JOHN DAY ..................................... 13 of 13 90 72 UPPER DESCHUTES, CROOKED ..................... 14 of 14 84 67 HOOD, SANDY, LOWER DESCHUTES ................. 7 of 8 94 73 COAST RANGE .................................. 1 of 2 275 81 WILLAMETTE ................................... 18 of 23 90 67 ROGUE, UMPQUA ................................ 12 of 12 88 64 KLAMATH ...................................... 16 of 18 82 64 LAKE COUNTY, GOOSE LAKE ...................... 9 of 9 101 67 HARNEY ....................................... 8 of 9 100 78 UTAH RAFT RIVER ................................... 1 of 2 116 99 BEAR RIVER ................................... 18 of 24 119 95 WEBER-OGDEN RIVERS ........................... 17 of 20 110 90 PROVO R.-UTAH LAKE-JORDAN R. ................. 15 of 17 117 88 TOOELE VALLEY-VERNON CREEK ................... 3 of 4 139 90 NORTHEASTERN UINTAHS ......................... 6 of 10 149 116 DUCHESNE RIVER ............................... 12 of 13 130 97 PRICE-SAN RAFAEL ............................. 6 of 11 117 92 DIRTY DEVIL .................................. 2 of 6 * * SOUTH EASTERN UTAH ........................... 3 of 7 * * UPPER SEVIER RIVER ........................... 12 of 17 144 109 SAN PITCH RIVER .............................. 5 of 11 * * LOWER SEVIER RIVER ........................... 1 of 3 * * BEAVER RIVER ................................. 2 of 2 98 98 ESCALANTE RIVER .............................. 3 of 4 174 120 SOUTHWESTERN UTAH ............................ 10 of 13 175 118 WASHINGTON NORTHERN PANHANDLE ........................... 10 of 10 115 93 SPOKANE ...................................... 9 of 10 98 85 UPPER COLUMBIA ............................... 5 of 6 92 76 CENTRAL COLUMBIA ............................. 7 of 8 83 87 UPPER YAKIMA ................................. 4 of 5 73 89 LOWER YAKIMA ................................. 5 of 9 99 81 LOWER SNAKE .................................. 21 of 22 96 87 LOWER COLUMBIA ............................... 17 of 22 93 75 SOUTH PUGET SOUND ............................ 7 of 10 103 91 CENTRAL PUGET SOUND .......................... 9 of 9 85 100 NORTH PUGET SOUND ............................ 7 of 12 91 82 OLYMPIC ...................................... 3 of 4 92 58 WYOMING SNAKE RIVER .................................. 20 of 20 102 88 MADISON-GALLATIN ............................. 5 of 5 92 73 YELLOWSTONE .................................. 14 of 14 106 92 WIND RIVER ................................... 10 of 12 104 75 BIGHORN BASIN ................................ 9 of 11 124 100 SHOSHONE RIVER ............................... 5 of 6 105 95 POWDER RIVER ................................. 6 of 7 118 111 TONGUE RIVER ................................. 6 of 7 104 80 BELLE FOURCHE ................................ 2 of 2 101 76 CHEYENNE RIVER BASIN ......................... 2 of 2 96 85 UPPER N. PLATTE .............................. 16 of 19 111 100 SWEETWATER ................................... 3 of 3 81 54 LOWER N. PLATTE .............................. 4 of 4 139 97 LARAMIE RIVER ................................ 7 of 7 121 102 S. PLATTE .................................... 2 of 3 114 103 LITTLE SNAKE RIVER ........................... 8 of 8 128 100 UPPER GREEN RIVER ............................ 13 of 14 102 86 LOWER GREEN RIVER ............................ 7 of 11 128 105 UPPER BEAR RIVER ............................. 8 of 10 116 94 ----------------------------------------------------------------------------- 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 Accumulated 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. * = Data are not available or data may not provide a valid measure of conditions for over half of the sites within the basin. Refer to the individual state reports for a complete data listing and basin analysis. Units = inches for the Current and Normal Snow Water Equivalent and Total Precipitation values 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.