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 FRIDAY: JULY 3 , 2009 ----------------------------------------------------------------------------- STATE PERCENT OF AVERAGE RIVER BASIN Number Snow Water Accum of Sites Equivalent Precip ----------------------------------------------------------------------------- ALASKA ANCHORAGE/SHIP CREEK BASIN ................... 3 of 3 * 100 SUSITNA BASIN ................................ 4 of 6 * 87 NORTHERN KENAI MOUNTAINS ..................... 6 of 6 0 77 SOUTHERN KENAI ............................... 3 of 6 * 49 COPPER BASIN ................................. 2 of 4 * 78 PRINCE WILLIAM SOUND ......................... 0 of 6 * 80 CHENA BASIN .................................. 5 of 6 * 95 UPPER TANANA ................................. 1 of 3 * * KOYUKUK BASIN ................................ 1 of 3 * 107 CENTRAL YUKON BASIN .......................... 0 of 3 * 101 SEWARD PENINSULA ............................. 0 of 3 * * KUPARUK RIVER BASIN .......................... 0 of 1 * 174 SOUTHEAST ALASKA BASIN ....................... 1 of 1 * 94 ARIZONA VERDE RIVER BASIN ............................ 2 of 5 * 95 SAN FRANCISCO PEAKS .......................... 1 of 1 * 65 CENTRAL MOGOLLON RIM ......................... 3 of 3 * 96 LITTLE COLORADO - SOUTHERN HEADWATERS ........ 1 of 2 * 109 UPPER SALT RIVER BASIN / WHITE MOUNTAINS ..... 4 of 6 * 90 SAN FRANCISCO RIVER BASIN .................... 3 of 5 * 85 UPPER GILA RIVER BASIN ....................... 2 of 3 * 75 CALIFORNIA NORTHERN GREAT BASIN ......................... 4 of 4 * 98 TRUCKEE RIVER ................................ 8 of 8 0 91 LAKE TAHOE ................................... 5 of 8 * 91 CARSON RIVER ................................. 3 of 9 * 96 WALKER RIVER ................................. 5 of 6 0 95 KLAMATH ...................................... 5 of 10 * 95 COLORADO GUNNISON RIVER BASIN ......................... 4 of 13 * 104 UPPER COLORADO RIVER BASIN ................... 12 of 29 * 96 SOUTH PLATTE RIVER BASIN ..................... 10 of 15 36 89 LARAMIE AND NORTH PLATTE RIVER BASINS ........ 10 of 13 7 96 YAMPA AND WHITE RIVER BASINS ................. 12 of 19 1 107 ARKANSAS RIVER BASIN ......................... 1 of 9 * * UPPER RIO GRANDE BASIN ....................... 6 of 13 * 105 SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS ................. 7 of 16 * 100 IDAHO NORTHERN PANHANDLE REGION .................... 12 of 16 2 88 SPOKANE RIVER BASIN .......................... 8 of 10 2 91 CLEARWATER BASIN ............................. 13 of 15 2 97 SALMON BASIN ................................. 15 of 22 22 100 WEISER BASIN ................................. 3 of 4 * 91 PAYETTE BASIN ................................ 7 of 11 0 94 BOISE BASIN .................................. 8 of 11 0 100 BIG WOOD BASIN ............................... 7 of 9 0 103 LITTLE WOOD BASIN ............................ 3 of 5 * 121 BIG LOST BASIN ............................... 2 of 5 * 113 LITTLE LOST, BIRCH BASINS .................... 1 of 4 * 113 MEDICINE LODGE, BEAVER, CAMAS BASINS ......... 4 of 6 * 104 HENRYS FORK, TETON BASINS .................... 5 of 10 5 100 SNAKE BASIN ABOVE PALISADES .................. 12 of 18 27 115 WILLOW, BLACKFOOT, PORTNEUF BASINS ........... 4 of 5 * 123 SNAKE BASIN ABOVE AMERICAN FALLS ............. 19 of 31 22 112 OAKLEY BASIN ................................. 3 of 3 * 124 SALMON FALLS BASIN ........................... 5 of 5 * 125 BRUNEAU BASIN ................................ 4 of 5 * 126 OWYHEE BASIN ................................. 6 of 8 * 112 BEAR RIVER BASIN ............................. 11 of 15 67 111 MONTANA KOOTENAI RIVER BASIN ......................... 7 of 8 0 84 FLATHEAD RIVER BASIN ......................... 10 of 15 1 84 UPPER CLARK FORK RIVER BASIN ................. 10 of 15 11 97 BITTERROOT RIVER BASIN ....................... 7 of 7 12 101 LOWER CLARK FORK RIVER BASIN ................. 8 of 8 0 89 JEFFERSON RIVER BASIN ........................ 16 of 19 35 105 MADISON RIVER BASIN .......................... 7 of 11 3 100 GALLATIN RIVER BASIN ......................... 4 of 7 2 101 MISSOURI HEADWATERS .......................... 23 of 31 17 103 HEADWATERS MISSOURI MAINSTEM ................. 2 of 5 * 101 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS .. 5 of 9 0 96 SUN, TETON AND MARIAS RIVER BASINS ........... 4 of 6 0 84 MISSOURI MAINSTEM RIVER BASIN ................ 11 of 20 10 93 ST. MARY AND MILK RIVER BASINS ............... 2 of 3 3 78 UPPER YELLOWSTONE RIVER BASIN ................ 16 of 23 13 106 WIND RIVER BASIN (WYOMING) ................... 7 of 12 24 110 SHOSHONE RIVER BASIN (WYOMING) ............... 5 of 6 11 107 BIGHORN RIVER BASIN (WYOMING) ................ 12 of 16 11 104 TONGUE RIVER BASIN (WYOMING) ................. 5 of 6 * 104 POWDER RIVER BASIN (WYOMING) ................. 6 of 6 * 98 LOWER YELLOWSTONE RIVER BASIN ................ 24 of 32 16 106 NEVADA NORTHERN GREAT BASIN ......................... 4 of 4 * 98 SNAKE RIVER .................................. 2 of 3 * 124 OWYHEE RIVER ................................. 4 of 6 * 112 UPPER HUMBOLDT RIVER ......................... 4 of 5 * 115 LOWER HUMBOLDT RIVER ......................... 4 of 5 0 93 CLOVER VALLEY ................................ 1 of 1 * 112 EASTERN NEVADA ............................... 3 of 3 0 122 NEW MEXICO RIO CHAMA RIVER BASIN ........................ 3 of 4 * 95 UPPER RIO GRANDE BASIN ....................... 5 of 9 0 107 SANGRE DE CRISTO MOUNTAIN RANGE BASINS ....... 3 of 9 * 102 JEMEZ RIVER BASIN ............................ 2 of 3 * 93 SAN FRANCISCO RIVER BASIN .................... 2 of 3 * 88 GILA RIVER BASIN ............................. 2 of 3 * 75 MIMBRES RIVER BASIN .......................... 2 of 2 * 58 PECOS RIVER BASIN ............................ 0 of 1 * 85 SAN JUAN RIVER HEADWATERS .................... 3 of 5 0 105 ANIMAS RIVER BASIN ........................... 5 of 7 18 99 CIMARRON RIVER BASIN ......................... 1 of 2 * 105 ZUNI/BLUEWATER RIVER BASIN ................... 1 of 1 * 134 RIO HONDO BASIN .............................. 1 of 1 * 90 OREGON OWYHEE ....................................... 6 of 8 * 112 MALHEUR ...................................... 2 of 3 * 94 GRANDE RONDE, POWDER, BURNT, IMNAHA .......... 9 of 14 19 104 UMATILLA, WALLA WALLA, WILLOW ................ 4 of 8 * 106 JOHN DAY ..................................... 6 of 14 * 94 UPPER DESCHUTES, CROOKED ..................... 7 of 14 14 92 HOOD, SANDY, LOWER DESCHUTES ................. 4 of 8 63 98 COAST RANGE .................................. 2 of 2 0 65 WILLAMETTE ................................... 13 of 2 0 91 ROGUE, UMPQUA ................................ 8 of 13 0 92 KLAMATH ...................................... 10 of 18 * 94 LAKE COUNTY, GOOSE LAKE ...................... 6 of 8 * 91 HARNEY ....................................... 3 of 7 * 101 UTAH BEAR RIVER ................................... 5 of 10 67 110 WEBER-OGDEN RIVERS ........................... 8 of 17 * 115 PROVO R.-UTAH LAKE-JORDAN R. ................. 10 of 15 33 115 TOOELE VALLEY-VERNON CREEK ................... 1 of 3 * 112 GREEN RIVER .................................. 4 of 6 25 110 DUCHESNE RIVER ............................... 7 of 12 18 104 PRICE-SAN RAFAEL ............................. 3 of 6 * 106 DIRTY DEVIL .................................. 3 of 3 * 99 SOUTH EASTERN UTAH ........................... 2 of 3 * 87 SEVIER RIVER ................................. 10 of 16 0 103 BEAVER RIVER ................................. 1 of 2 13 108 ESCALANTE RIVER .............................. 2 of 3 * 91 VIRGIN RIVER ................................. 5 of 9 0 102 WASHINGTON NORTHERN PANHANDLE ........................... 11 of 13 3 88 SPOKANE ...................................... 8 of 10 2 91 UPPER COLUMBIA ............................... 3 of 5 7 79 CENTRAL COLUMBIA ............................. 5 of 8 3 89 UPPER YAKIMA ................................. 3 of 5 17 99 LOWER YAKIMA ................................. 5 of 7 80 98 LOWER SNAKE .................................. 1 of 2 * 118 LOWER COLUMBIA ............................... 8 of 10 89 87 SOUTH PUGET SOUND ............................ 4 of 8 129 100 CENTRAL PUGET SOUND .......................... 7 of 9 133 103 NORTH PUGET SOUND ............................ 4 of 9 * 83 OLYMPIC ...................................... 1 of 3 * 82 WYOMING SNAKE RIVER .................................. 10 of 16 27 115 UPPER YELLOWSTONE-MADISON .................... 7 of 13 15 105 WIND RIVER ................................... 6 of 9 24 109 BIGHORN BASIN ................................ 12 of 16 11 104 SHOSHONE RIVER ............................... 5 of 7 11 110 POWDER-TONGUE ................................ 11 of 12 * 101 BELLE FOURCHE ................................ 0 of 3 * 110 UPPER N. PLATTE RIVER ........................ 7 of 11 3 115 LOWER N. PLATTE - SWEETWATER - LARAMIE ....... 6 of 10 6 100 LITTLE SNAKE RIVER ........................... 4 of 5 0 120 UPPER GREEN RIVER ............................ 6 of 12 * 117 LOWER GREEN RIVER ............................ 5 of 7 25 108 UPPER BEAR RIVER ............................. 5 of 7 67 106 ----------------------------------------------------------------------------- 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.