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: NOVEMBER 7 , 2009 ----------------------------------------------------------------------------- STATE PERCENT OF AVERAGE RIVER BASIN Number Snow Water Accum of Sites Equivalent Precip ----------------------------------------------------------------------------- ALASKA ANCHORAGE/SHIP CREEK BASIN ................... 3 of 3 23 65 SUSITNA BASIN ................................ 4 of 6 22 61 NORTHERN KENAI MOUNTAINS ..................... 6 of 6 63 106 SOUTHERN KENAI ............................... 3 of 6 71 109 COPPER BASIN ................................. 2 of 4 10 56 PRINCE WILLIAM SOUND ......................... 0 of 6 * 71 CHENA BASIN .................................. 6 of 6 35 42 UPPER TANANA ................................. 1 of 3 * * KOYUKUK BASIN ................................ 1 of 3 * 33 CENTRAL YUKON BASIN .......................... 0 of 3 * 37 SEWARD PENINSULA ............................. 0 of 3 * * KUPARUK RIVER BASIN .......................... 0 of 1 * 133 SOUTHEAST ALASKA BASIN ....................... 0 of 1 * * ARIZONA VERDE RIVER BASIN ............................ 5 of 5 55 19 SAN FRANCISCO PEAKS .......................... 1 of 1 42 21 CENTRAL MOGOLLON RIM ......................... 3 of 3 33 21 LITTLE COLORADO - SOUTHERN HEADWATERS ........ 2 of 2 25 38 UPPER SALT RIVER BASIN / WHITE MOUNTAINS ..... 6 of 6 22 28 SAN FRANCISCO RIVER BASIN .................... 4 of 5 50 25 UPPER GILA RIVER BASIN ....................... 1 of 3 * 34 CALIFORNIA NORTHERN GREAT BASIN ......................... 4 of 4 42 98 TRUCKEE RIVER ................................ 8 of 8 6 152 LAKE TAHOE ................................... 8 of 8 8 170 CARSON RIVER ................................. 4 of 9 * 174 WALKER RIVER ................................. 4 of 6 29 198 KLAMATH ...................................... 10 of 10 27 87 COLORADO GUNNISON RIVER BASIN ......................... 12 of 13 81 95 UPPER COLORADO RIVER BASIN ................... 26 of 29 89 110 SOUTH PLATTE RIVER BASIN ..................... 15 of 15 122 141 LARAMIE AND NORTH PLATTE RIVER BASINS ........ 12 of 13 102 138 YAMPA AND WHITE RIVER BASINS ................. 16 of 19 66 107 ARKANSAS RIVER BASIN ......................... 4 of 9 * * UPPER RIO GRANDE BASIN ....................... 10 of 13 83 96 SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS ................. 15 of 16 33 70 IDAHO NORTHERN PANHANDLE REGION .................... 13 of 16 49 122 SPOKANE RIVER BASIN .......................... 9 of 10 28 109 CLEARWATER BASIN ............................. 14 of 15 44 102 SALMON BASIN ................................. 22 of 22 115 144 WEISER BASIN ................................. 3 of 4 21 162 PAYETTE BASIN ................................ 9 of 11 43 146 BOISE BASIN .................................. 10 of 11 106 174 BIG WOOD BASIN ............................... 9 of 9 138 182 LITTLE WOOD BASIN ............................ 4 of 5 65 178 BIG LOST BASIN ............................... 4 of 5 100 177 LITTLE LOST, BIRCH BASINS .................... 4 of 4 195 187 MEDICINE LODGE, BEAVER, CAMAS BASINS ......... 6 of 6 143 157 HENRYS FORK, TETON BASINS .................... 8 of 10 85 114 SNAKE BASIN ABOVE PALISADES .................. 16 of 18 89 112 WILLOW, BLACKFOOT, PORTNEUF BASINS ........... 5 of 5 31 109 SNAKE BASIN ABOVE AMERICAN FALLS ............. 28 of 31 84 113 OAKLEY BASIN ................................. 3 of 3 52 118 SALMON FALLS BASIN ........................... 5 of 5 56 133 BRUNEAU BASIN ................................ 5 of 5 64 138 OWYHEE BASIN ................................. 6 of 8 65 141 BEAR RIVER BASIN ............................. 15 of 15 62 111 MONTANA KOOTENAI RIVER BASIN ......................... 8 of 8 97 167 FLATHEAD RIVER BASIN ......................... 15 of 15 109 147 UPPER CLARK FORK RIVER BASIN ................. 14 of 15 143 133 BITTERROOT RIVER BASIN ....................... 7 of 7 63 117 LOWER CLARK FORK RIVER BASIN ................. 8 of 8 50 125 JEFFERSON RIVER BASIN ........................ 19 of 19 165 153 MADISON RIVER BASIN .......................... 11 of 11 135 140 GALLATIN RIVER BASIN ......................... 7 of 7 152 141 MISSOURI HEADWATERS .......................... 31 of 31 151 146 HEADWATERS MISSOURI MAINSTEM ................. 5 of 5 203 156 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS .. 9 of 9 300 230 SUN, TETON AND MARIAS RIVER BASINS ........... 6 of 6 106 152 MISSOURI MAINSTEM RIVER BASIN ................ 20 of 20 201 186 ST. MARY AND MILK RIVER BASINS ............... 3 of 3 122 157 UPPER YELLOWSTONE RIVER BASIN ................ 23 of 23 140 138 WIND RIVER BASIN (WYOMING) ................... 12 of 12 165 146 SHOSHONE RIVER BASIN (WYOMING) ............... 6 of 6 114 118 BIGHORN RIVER BASIN (WYOMING) ................ 16 of 16 121 118 TONGUE RIVER BASIN (WYOMING) ................. 6 of 6 122 130 POWDER RIVER BASIN (WYOMING) ................. 6 of 6 144 111 LOWER YELLOWSTONE RIVER BASIN ................ 32 of 32 137 130 NEVADA NORTHERN GREAT BASIN ......................... 4 of 4 42 98 SNAKE RIVER .................................. 3 of 3 96 132 OWYHEE RIVER ................................. 5 of 6 76 139 UPPER HUMBOLDT RIVER ......................... 5 of 5 8 125 LOWER HUMBOLDT RIVER ......................... 4 of 5 5 111 CLOVER VALLEY ................................ 1 of 1 0 141 EASTERN NEVADA ............................... 3 of 3 72 159 NEW MEXICO RIO CHAMA RIVER BASIN ........................ 4 of 4 78 67 UPPER RIO GRANDE BASIN ....................... 9 of 9 69 91 SANGRE DE CRISTO MOUNTAIN RANGE BASINS ....... 8 of 9 118 126 JEMEZ RIVER BASIN ............................ 3 of 3 15 62 SAN FRANCISCO RIVER BASIN .................... 2 of 3 200 23 GILA RIVER BASIN ............................. 1 of 3 * 34 MIMBRES RIVER BASIN .......................... 0 of 2 * 51 PECOS RIVER BASIN ............................ 1 of 1 82 135 SAN JUAN RIVER HEADWATERS .................... 5 of 5 48 77 ANIMAS RIVER BASIN ........................... 7 of 7 32 73 CIMARRON RIVER BASIN ......................... 2 of 2 124 177 ZUNI/BLUEWATER RIVER BASIN ................... 1 of 1 0 28 RIO HONDO BASIN .............................. 1 of 1 95 134 OREGON OWYHEE ....................................... 6 of 8 65 141 MALHEUR ...................................... 3 of 3 0 113 GRANDE RONDE, POWDER, BURNT, IMNAHA .......... 13 of 14 98 143 UMATILLA, WALLA WALLA, WILLOW ................ 7 of 8 40 129 JOHN DAY ..................................... 13 of 14 34 146 UPPER DESCHUTES, CROOKED ..................... 14 of 14 82 130 HOOD, SANDY, LOWER DESCHUTES ................. 8 of 8 75 108 COAST RANGE .................................. 2 of 2 0 95 WILLAMETTE ................................... 20 of 2 0 121 ROGUE, UMPQUA ................................ 12 of 13 37 107 KLAMATH ...................................... 16 of 18 21 90 LAKE COUNTY, GOOSE LAKE ...................... 8 of 8 26 99 HARNEY ....................................... 7 of 7 17 141 UTAH BEAR RIVER ................................... 8 of 10 58 101 WEBER-OGDEN RIVERS ........................... 14 of 17 47 92 PROVO R.-UTAH LAKE-JORDAN R. ................. 11 of 15 31 79 TOOELE VALLEY-VERNON CREEK ................... 2 of 3 52 90 GREEN RIVER .................................. 5 of 6 165 127 DUCHESNE RIVER ............................... 11 of 12 88 66 PRICE-SAN RAFAEL ............................. 5 of 6 7 70 DIRTY DEVIL .................................. 3 of 3 74 73 SOUTH EASTERN UTAH ........................... 3 of 3 67 60 SEVIER RIVER ................................. 14 of 16 61 65 BEAVER RIVER ................................. 2 of 2 43 52 ESCALANTE RIVER .............................. 2 of 3 100 64 VIRGIN RIVER ................................. 7 of 9 61 38 WASHINGTON NORTHERN PANHANDLE ........................... 12 of 13 49 125 SPOKANE ...................................... 9 of 10 30 112 UPPER COLUMBIA ............................... 3 of 5 74 124 CENTRAL COLUMBIA ............................. 8 of 8 83 152 UPPER YAKIMA ................................. 5 of 5 53 131 LOWER YAKIMA ................................. 7 of 7 97 142 LOWER SNAKE .................................. 2 of 2 50 127 LOWER COLUMBIA ............................... 9 of 10 91 122 SOUTH PUGET SOUND ............................ 5 of 8 69 129 CENTRAL PUGET SOUND .......................... 8 of 9 98 140 NORTH PUGET SOUND ............................ 6 of 9 74 170 OLYMPIC ...................................... 3 of 3 173 217 WYOMING SNAKE RIVER .................................. 13 of 16 93 113 UPPER YELLOWSTONE-MADISON .................... 13 of 13 122 130 WIND RIVER ................................... 9 of 9 170 155 BIGHORN BASIN ................................ 16 of 16 121 118 SHOSHONE RIVER ............................... 7 of 7 116 118 POWDER-TONGUE ................................ 12 of 12 132 121 BELLE FOURCHE ................................ 3 of 3 63 156 UPPER N. PLATTE RIVER ........................ 11 of 11 125 146 LOWER N. PLATTE - SWEETWATER - LARAMIE ....... 10 of 10 150 170 LITTLE SNAKE RIVER ........................... 4 of 5 126 139 UPPER GREEN RIVER ............................ 11 of 12 116 120 LOWER GREEN RIVER ............................ 6 of 7 134 137 UPPER BEAR RIVER ............................. 7 of 7 69 103 ----------------------------------------------------------------------------- The Snow Water Equivalent Percent of Average represents the snow water equivalent found at selected SNOTEL sites in or near the basin compared to the average 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 Average Snow Water Equivalent and Total Precipitation values Reference period for average conditions is 1961-90. Provisional data, subject to revision.