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: MARCH 20 , 2010 ----------------------------------------------------------------------------- STATE PERCENT OF AVERAGE RIVER BASIN Number Snow Water Accum of Sites Equivalent Precip ----------------------------------------------------------------------------- ALASKA ANCHORAGE/SHIP CREEK BASIN ................... 4 of 4 98 102 SUSITNA BASIN ................................ 3 of 6 55 64 NORTHERN KENAI MOUNTAINS ..................... 6 of 6 117 117 SOUTHERN KENAI ............................... 3 of 6 114 92 COPPER BASIN ................................. 3 of 4 90 84 PRINCE WILLIAM SOUND ......................... 0 of 6 * 103 CHENA BASIN .................................. 6 of 6 40 45 UPPER TANANA ................................. 2 of 3 92 61 KOYUKUK BASIN ................................ 1 of 3 * 56 CENTRAL YUKON BASIN .......................... 0 of 3 * 54 SEWARD PENINSULA ............................. 0 of 2 * 31 KUPARUK RIVER BASIN .......................... 0 of 1 * 100 SOUTHEAST ALASKA BASIN ....................... 0 of 1 * * ARIZONA VERDE RIVER BASIN ............................ 5 of 7 318 143 SAN FRANCISCO PEAKS .......................... 1 of 1 200 77 CENTRAL MOGOLLON RIM ......................... 3 of 3 271 138 LITTLE COLORADO - SOUTHERN HEADWATERS ........ 5 of 5 236 137 UPPER SALT RIVER BASIN / WHITE MOUNTAINS ..... 5 of 7 215 115 SAN FRANCISCO RIVER BASIN .................... 4 of 5 217 113 UPPER GILA RIVER BASIN ....................... 3 of 3 233 122 CALIFORNIA NORTHERN GREAT BASIN ......................... 3 of 4 70 74 TRUCKEE RIVER ................................ 8 of 8 87 84 LAKE TAHOE ................................... 8 of 8 88 84 CARSON RIVER ................................. 5 of 9 96 95 WALKER RIVER ................................. 5 of 6 91 100 KLAMATH ...................................... 10 of 10 67 66 COLORADO GUNNISON RIVER BASIN ......................... 12 of 15 96 95 UPPER COLORADO RIVER BASIN ................... 28 of 30 79 79 SOUTH PLATTE RIVER BASIN ..................... 15 of 17 82 85 LARAMIE AND NORTH PLATTE RIVER BASINS ........ 13 of 13 75 80 YAMPA AND WHITE RIVER BASINS ................. 17 of 19 74 78 ARKANSAS RIVER BASIN ......................... 6 of 9 109 100 UPPER RIO GRANDE BASIN ....................... 10 of 15 111 107 SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASIN .................. 15 of 16 100 97 IDAHO NORTHERN PANHANDLE REGION .................... 6 of 10 68 73 SPOKANE RIVER BASIN .......................... 8 of 10 51 62 CLEARWATER BASIN ............................. 13 of 16 51 58 SALMON BASIN ................................. 22 of 22 58 64 WEISER BASIN ................................. 3 of 4 70 78 PAYETTE BASIN ................................ 9 of 11 56 65 BOISE BASIN .................................. 9 of 10 65 72 BIG WOOD BASIN ............................... 9 of 9 63 66 LITTLE WOOD BASIN ............................ 4 of 5 58 71 BIG LOST BASIN ............................... 4 of 5 53 66 LITTLE LOST, BIRCH BASINS .................... 4 of 4 63 70 MEDICINE LODGE, BEAVER, CAMAS BASINS ......... 4 of 4 61 71 HENRYS FORK, TETON BASINS .................... 7 of 8 51 54 SNAKE BASIN ABOVE PALISADES .................. 17 of 18 50 56 WILLOW, BLACKFOOT, PORTNEUF BASINS ........... 5 of 6 52 66 SNAKE BASIN ABOVE AMERICAN FALLS ............. 26 of 29 51 57 OAKLEY BASIN ................................. 3 of 3 77 84 SALMON FALLS BASIN ........................... 5 of 5 69 82 BRUNEAU BASIN ................................ 5 of 5 71 80 OWYHEE BASIN ................................. 7 of 8 86 81 BEAR RIVER BASIN ............................. 14 of 15 54 64 MONTANA KOOTENAI RIVER BASIN ......................... 8 of 8 65 70 FLATHEAD RIVER BASIN ......................... 14 of 15 67 73 UPPER CLARK FORK RIVER BASIN ................. 14 of 15 65 63 BITTERROOT RIVER BASIN ....................... 7 of 7 49 54 LOWER CLARK FORK RIVER BASIN ................. 8 of 8 49 59 JEFFERSON RIVER BASIN ........................ 19 of 19 67 70 MADISON RIVER BASIN .......................... 11 of 11 63 66 GALLATIN RIVER BASIN ......................... 7 of 7 74 74 MISSOURI HEADWATERS .......................... 31 of 31 66 69 HEADWATERS MISSOURI MAINSTEM ................. 5 of 5 74 73 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS .. 9 of 10 89 87 SUN, TETON AND MARIAS RIVER BASINS ........... 6 of 6 54 63 MISSOURI MAINSTEM RIVER BASIN ................ 20 of 21 71 75 ST. MARY AND MILK RIVER BASINS ............... 3 of 3 65 72 UPPER YELLOWSTONE RIVER BASIN ................ 23 of 24 64 66 WIND RIVER BASIN (WYOMING) ................... 12 of 12 70 67 SHOSHONE RIVER BASIN (WYOMING) ............... 6 of 6 54 62 BIGHORN RIVER BASIN (WYOMING) ................ 16 of 16 64 66 TONGUE RIVER BASIN (WYOMING) ................. 6 of 6 68 75 POWDER RIVER BASIN (WYOMING) ................. 6 of 6 83 74 LOWER YELLOWSTONE RIVER BASIN ................ 32 of 32 68 69 NEVADA NORTHERN GREAT BASIN ......................... 3 of 4 70 74 SNAKE RIVER .................................. 3 of 3 63 74 OWYHEE RIVER ................................. 5 of 6 83 78 UPPER HUMBOLDT RIVER ......................... 5 of 5 83 87 LOWER HUMBOLDT RIVER ......................... 4 of 6 74 79 CLOVER VALLEY ................................ 1 of 1 52 85 EASTERN NEVADA ............................... 3 of 3 116 119 NEW MEXICO RIO CHAMA RIVER BASIN ........................ 4 of 4 115 98 UPPER RIO GRANDE BASIN ....................... 9 of 9 107 109 SANGRE DE CRISTO MOUNTAIN RANGE BASINS ....... 9 of 9 131 123 JEMEZ RIVER BASIN ............................ 3 of 3 109 104 SAN FRANCISCO RIVER BASIN .................... 2 of 3 215 121 GILA RIVER BASIN ............................. 3 of 3 233 122 MIMBRES RIVER BASIN .......................... 2 of 2 329 129 PECOS RIVER BASIN ............................ 1 of 1 112 116 SAN JUAN RIVER HEADWATERS .................... 5 of 5 99 103 ANIMAS RIVER BASIN ........................... 7 of 7 95 94 CIMARRON RIVER BASIN ......................... 2 of 2 144 139 ZUNI/BLUEWATER RIVER BASIN ................... 1 of 1 292 143 RIO HONDO BASIN .............................. 1 of 1 233 180 OREGON OWYHEE ....................................... 7 of 8 86 81 MALHEUR ...................................... 3 of 3 90 78 GRANDE RONDE, POWDER, BURNT, IMNAHA .......... 15 of 17 71 75 UMATILLA, WALLA WALLA, WILLOW ................ 6 of 8 56 73 JOHN DAY ..................................... 12 of 13 70 80 UPPER DESCHUTES, CROOKED ..................... 14 of 14 57 71 HOOD, SANDY, LOWER DESCHUTES ................. 8 of 8 52 70 COAST RANGE .................................. 1 of 2 5 76 WILLAMETTE ................................... 19 of 21 43 72 ROGUE, UMPQUA ................................ 12 of 12 66 71 KLAMATH ...................................... 16 of 18 71 68 LAKE COUNTY, GOOSE LAKE ...................... 8 of 9 75 74 HARNEY ....................................... 8 of 9 85 82 UTAH BEAR RIVER ................................... 8 of 14 56 64 WEBER-OGDEN RIVERS ........................... 14 of 17 63 66 PROVO R.-UTAH LAKE-JORDAN R. ................. 13 of 15 68 72 TOOELE VALLEY-VERNON CREEK ................... 3 of 3 73 81 GREEN RIVER .................................. 6 of 7 84 90 DUCHESNE RIVER ............................... 12 of 13 71 65 PRICE-SAN RAFAEL ............................. 5 of 6 73 76 DIRTY DEVIL .................................. 3 of 3 98 92 SOUTH EASTERN UTAH ........................... 3 of 3 148 114 SEVIER RIVER ................................. 13 of 16 113 106 BEAVER RIVER ................................. 2 of 2 122 119 ESCALANTE RIVER .............................. 2 of 3 130 117 VIRGIN RIVER ................................. 7 of 9 163 126 WASHINGTON NORTHERN PANHANDLE ........................... 6 of 10 68 73 SPOKANE ...................................... 8 of 10 51 62 UPPER COLUMBIA ............................... 5 of 5 83 84 CENTRAL COLUMBIA ............................. 8 of 8 73 78 UPPER YAKIMA ................................. 5 of 5 65 72 LOWER YAKIMA ................................. 7 of 9 83 81 LOWER SNAKE .................................. 17 of 22 57 63 LOWER COLUMBIA ............................... 18 of 22 67 78 SOUTH PUGET SOUND ............................ 7 of 8 54 70 CENTRAL PUGET SOUND .......................... 9 of 9 50 73 NORTH PUGET SOUND ............................ 8 of 12 68 92 OLYMPIC ...................................... 3 of 4 96 139 WYOMING SNAKE RIVER .................................. 14 of 16 52 57 UPPER YELLOWSTONE-MADISON .................... 13 of 13 55 56 WIND RIVER ................................... 9 of 9 72 70 BIGHORN BASIN ................................ 16 of 16 64 66 SHOSHONE RIVER ............................... 7 of 7 55 62 POWDER-TONGUE ................................ 12 of 12 75 75 BELLE FOURCHE ................................ 3 of 3 76 103 UPPER N. PLATTE RIVER ........................ 11 of 11 86 90 LOWER N. PLATTE - SWEETWATER - LARAMIE ....... 10 of 10 87 92 LITTLE SNAKE RIVER ........................... 5 of 5 83 87 UPPER GREEN RIVER ............................ 11 of 13 50 55 LOWER GREEN RIVER ............................ 7 of 7 67 74 UPPER BEAR RIVER ............................. 7 of 7 56 60 ----------------------------------------------------------------------------- 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 1971-2000. Provisional data, subject to revision.