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 17 , 2019 ----------------------------------------------------------------------------- STATE PERCENT OF Normal RIVER BASIN Number Snow Water Accum of Sites Equivalent Precip ----------------------------------------------------------------------------- ALASKA ANCHORAGE/SHIP CREEK BASIN ................... 4 of 4 65 126 SUSITNA BASIN ................................ 3 of 5 100 119 NORTHERN KENAI MOUNTAINS ..................... 7 of 7 60 151 SOUTHERN KENAI ............................... 2 of 6 * 141 COPPER BASIN ................................. 2 of 3 95 125 PRINCE WILLIAM SOUND ......................... 1 of 7 * 149 CHENA BASIN .................................. 6 of 7 60 79 UPPER TANANA ................................. 2 of 4 35 * KOYUKUK BASIN ................................ 2 of 6 * 105 CENTRAL YUKON BASIN .......................... 0 of 5 * 104 NORTON SOUND ................................. 0 of 4 * 97 KUPARUK-SAGAVANIRKTOK RIVER BASIN ............ 0 of 3 * 93 NORTHWEST ARCTIC RIVER BASIN ................. 0 of 1 * * SOUTHEAST ALASKA BASIN ....................... 1 of 3 * 90 ARIZONA VERDE RIVER BASIN ............................ 5 of 10 118 112 SAN FRANCISCO PEAKS .......................... 1 of 1 107 133 CENTRAL MOGOLLON RIM ......................... 3 of 4 119 111 LITTLE COLORADO - SOUTHERN HEADWATERS ........ 5 of 6 112 109 UPPER SALT RIVER BASIN / WHITE MOUNTAINS ..... 7 of 9 101 98 SAN FRANCISCO / UPPER GILA RIVER BASIN ....... 7 of 8 91 92 CHUSKA MOUNTAINS ............................. 0 of 2 * * CALIFORNIA NORTHERN GREAT BASIN ......................... 4 of 5 119 85 TRUCKEE RIVER ................................ 8 of 9 113 79 LAKE TAHOE ................................... 8 of 8 106 86 CARSON RIVER ................................. 9 of 9 121 83 WALKER RIVER ................................. 6 of 7 115 92 KLAMATH ...................................... 16 of 18 68 69 COLORADO GUNNISON RIVER BASIN ......................... 13 of 16 100 100 UPPER COLORADO RIVER BASIN ................... 27 of 31 105 103 SOUTH PLATTE RIVER BASIN ..................... 16 of 22 110 110 LARAMIE AND NORTH PLATTE RIVER BASINS ........ 12 of 12 97 103 YAMPA AND WHITE RIVER BASINS ................. 19 of 20 101 97 ARKANSAS RIVER BASIN ......................... 6 of 9 124 112 UPPER RIO GRANDE BASIN ....................... 12 of 16 82 91 SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASIN .................. 17 of 19 89 90 IDAHO NORTHERN PANHANDLE REGION .................... 10 of 10 86 83 SPOKANE RIVER BASIN .......................... 9 of 10 77 82 CLEARWATER BASIN ............................. 13 of 16 86 93 SALMON BASIN ................................. 21 of 22 71 72 WEISER BASIN ................................. 4 of 4 81 71 PAYETTE BASIN ................................ 11 of 11 70 66 BOISE BASIN .................................. 9 of 10 67 66 BIG WOOD BASIN ............................... 8 of 9 69 66 LITTLE WOOD BASIN ............................ 5 of 5 60 65 BIG LOST BASIN ............................... 5 of 5 59 63 LITTLE LOST, BIRCH BASINS .................... 4 of 4 65 73 MEDICINE LODGE, BEAVER, CAMAS BASINS ......... 4 of 4 55 77 HENRYS FORK, TETON BASINS .................... 8 of 8 76 79 SNAKE BASIN ABOVE PALISADES .................. 18 of 18 76 80 WILLOW, BLACKFOOT, PORTNEUF BASINS ........... 6 of 6 79 80 SNAKE BASIN ABOVE AMERICAN FALLS ............. 29 of 29 78 80 RAFT BASIN ................................... 1 of 2 79 87 GOOSE CREEK BASIN ............................ 2 of 2 87 94 SALMON FALLS BASIN ........................... 5 of 6 91 98 BRUNEAU BASIN ................................ 5 of 6 96 100 OWYHEE BASIN ................................. 8 of 8 96 84 BEAR RIVER BASIN ............................. 15 of 15 83 88 MONTANA KOOTENAI RIVER BASIN ......................... 8 of 8 85 80 FLATHEAD RIVER BASIN ......................... 13 of 16 80 87 UPPER CLARK FORK RIVER BASIN ................. 13 of 15 86 94 BITTERROOT RIVER BASIN ....................... 7 of 7 83 93 LOWER CLARK FORK RIVER BASIN ................. 7 of 8 80 85 JEFFERSON RIVER BASIN ........................ 19 of 19 79 86 MADISON RIVER BASIN .......................... 11 of 11 75 79 GALLATIN RIVER BASIN ......................... 7 of 7 91 103 MISSOURI HEADWATERS .......................... 31 of 31 79 86 HEADWATERS MISSOURI MAINSTEM ................. 5 of 5 82 92 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS .. 9 of 10 83 87 SUN, TETON AND MARIAS RIVER BASINS ........... 5 of 6 70 78 MISSOURI MAINSTEM RIVER BASIN ................ 19 of 21 80 86 ST. MARY AND MILK RIVER BASINS ............... 3 of 3 84 89 UPPER YELLOWSTONE RIVER BASIN ................ 22 of 24 84 92 WIND RIVER BASIN (WYOMING) ................... 10 of 13 84 75 SHOSHONE RIVER BASIN (WYOMING) ............... 4 of 6 90 101 BIGHORN RIVER BASIN (WYOMING) ................ 13 of 16 93 89 TONGUE RIVER BASIN (WYOMING) ................. 6 of 7 79 79 POWDER RIVER BASIN (WYOMING) ................. 6 of 7 98 83 LOWER YELLOWSTONE RIVER BASIN ................ 28 of 35 87 83 NEVADA NORTHERN GREAT BASIN ......................... 7 of 9 114 83 SNAKE RIVER .................................. 7 of 11 93 98 OWYHEE RIVER ................................. 5 of 5 96 91 UPPER HUMBOLDT RIVER ......................... 9 of 9 100 97 LOWER HUMBOLDT RIVER ......................... 5 of 9 109 91 CLOVER VALLEY & FRANKLIN RIVER ............... 4 of 6 98 103 EASTERN NEVADA BASINS ........................ 4 of 4 93 98 NEW MEXICO RIO CHAMA RIVER BASIN ........................ 4 of 4 85 100 UPPER RIO GRANDE BASIN ....................... 9 of 9 82 90 SANGRE DE CRISTO MOUNTAIN RANGE BASINS ....... 9 of 11 113 114 JEMEZ RIVER BASIN ............................ 3 of 3 112 119 SAN FRANCISCO RIVER BASIN .................... 3 of 3 114 95 GILA RIVER BASIN ............................. 3 of 3 74 86 MIMBRES RIVER BASIN .......................... 2 of 2 62 93 PECOS RIVER BASIN ............................ 1 of 1 94 122 SAN JUAN RIVER HEADWATERS .................... 5 of 5 82 83 ANIMAS RIVER BASIN ........................... 7 of 7 95 93 CIMARRON RIVER BASIN ......................... 2 of 2 105 112 ZUNI/BLUEWATER RIVER BASIN ................... 1 of 1 119 91 RIO HONDO BASIN .............................. 1 of 1 80 160 CHUSKA MOUNTAINS ............................. 0 of 1 * * OREGON OWYHEE ....................................... 8 of 8 96 84 MALHEUR ...................................... 3 of 3 85 71 GRANDE RONDE, POWDER, BURNT, IMNAHA .......... 16 of 17 83 85 UMATILLA, WALLA WALLA, WILLOW ................ 6 of 8 90 88 JOHN DAY ..................................... 12 of 13 82 77 UPPER DESCHUTES, CROOKED ..................... 14 of 14 68 70 HOOD, SANDY, LOWER DESCHUTES ................. 8 of 8 53 78 COAST RANGE .................................. 1 of 2 0 74 WILLAMETTE ................................... 18 of 23 58 74 ROGUE, UMPQUA ................................ 12 of 12 59 67 KLAMATH ...................................... 16 of 18 68 69 LAKE COUNTY, GOOSE LAKE ...................... 9 of 9 102 76 HARNEY ....................................... 9 of 9 89 74 UTAH RAFT RIVER ................................... 1 of 2 79 87 BEAR RIVER ................................... 18 of 24 83 88 WEBER-OGDEN RIVERS ........................... 17 of 20 94 104 PROVO R.-UTAH LAKE-JORDAN R. ................. 15 of 17 97 106 TOOELE VALLEY-VERNON CREEK ................... 3 of 4 107 106 NORTHEASTERN UINTAHS ......................... 6 of 10 87 100 DUCHESNE RIVER ............................... 12 of 13 104 115 PRICE-SAN RAFAEL ............................. 6 of 11 113 121 DIRTY DEVIL .................................. 3 of 6 96 119 SOUTH EASTERN UTAH ........................... 3 of 6 108 135 UPPER SEVIER RIVER ........................... 12 of 17 102 111 SAN PITCH RIVER .............................. 5 of 11 * * LOWER SEVIER RIVER ........................... 1 of 3 * * BEAVER RIVER ................................. 2 of 2 101 132 ESCALANTE RIVER .............................. 3 of 4 82 99 SOUTHWESTERN UTAH ............................ 10 of 13 109 105 WASHINGTON NORTHERN PANHANDLE ........................... 10 of 10 86 83 SPOKANE ...................................... 9 of 10 77 82 UPPER COLUMBIA ............................... 5 of 6 91 78 CENTRAL COLUMBIA ............................. 7 of 8 88 95 UPPER YAKIMA ................................. 4 of 5 72 89 LOWER YAKIMA ................................. 7 of 9 85 86 LOWER SNAKE .................................. 19 of 22 84 89 LOWER COLUMBIA ............................... 18 of 22 65 80 SOUTH PUGET SOUND ............................ 7 of 10 76 87 CENTRAL PUGET SOUND .......................... 9 of 9 63 95 NORTH PUGET SOUND ............................ 8 of 12 90 97 OLYMPIC ...................................... 3 of 4 85 98 WYOMING SNAKE RIVER .................................. 19 of 20 77 81 MADISON-GALLATIN ............................. 5 of 5 66 67 YELLOWSTONE .................................. 13 of 13 80 86 WIND RIVER ................................... 10 of 12 84 75 BIGHORN BASIN ................................ 9 of 11 95 78 SHOSHONE RIVER ............................... 3 of 5 89 96 POWDER RIVER ................................. 6 of 7 98 83 TONGUE RIVER ................................. 6 of 7 79 79 BELLE FOURCHE ................................ 1 of 1 115 119 CHEYENNE RIVER BASIN ......................... 2 of 2 82 57 UPPER N. PLATTE .............................. 16 of 18 100 103 SWEETWATER ................................... 3 of 3 76 62 LOWER N. PLATTE .............................. 4 of 4 105 88 LARAMIE RIVER ................................ 6 of 6 90 97 S. PLATTE .................................... 2 of 3 81 92 LITTLE SNAKE RIVER ........................... 8 of 8 100 100 UPPER GREEN RIVER ............................ 12 of 13 78 82 LOWER GREEN RIVER ............................ 7 of 11 84 88 UPPER BEAR RIVER ............................. 7 of 9 82 91 ----------------------------------------------------------------------------- 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.