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: JUNE 22 , 2017 ----------------------------------------------------------------------------- STATE PERCENT OF Normal RIVER BASIN Number Snow Water Accum of Sites Equivalent Precip ----------------------------------------------------------------------------- ALASKA ANCHORAGE/SHIP CREEK BASIN ................... 4 of 4 * 68 SUSITNA BASIN ................................ 3 of 5 * 68 NORTHERN KENAI MOUNTAINS ..................... 7 of 7 33* 79 SOUTHERN KENAI ............................... 3 of 6 * 76 COPPER BASIN ................................. 2 of 3 * 71 PRINCE WILLIAM SOUND ......................... 1 of 7 * 77 CHENA BASIN .................................. 6 of 7 * 95 UPPER TANANA ................................. 2 of 5 * * KOYUKUK BASIN ................................ 2 of 6 * 66 CENTRAL YUKON BASIN .......................... 0 of 5 * 80 NORTON SOUND ................................. 0 of 4 * 75 KUPARUK-SAGAVANIRKTOK RIVER BASIN ............ 0 of 3 * 76 NORTHWEST ARCTIC RIVER BASIN ................. 0 of 1 * * SOUTHEAST ALASKA BASIN ....................... 1 of 3 * 92 ARIZONA VERDE RIVER BASIN ............................ 5 of 10 * 120 SAN FRANCISCO PEAKS .......................... 0 of 1 * 135 CENTRAL MOGOLLON RIM ......................... 3 of 4 * 120 LITTLE COLORADO - SOUTHERN HEADWATERS ........ 5 of 6 * 119 UPPER SALT RIVER BASIN / WHITE MOUNTAINS ..... 7 of 9 * 107 SAN FRANCISCO / UPPER GILA RIVER BASIN ....... 7 of 8 * 103 CHUSKA MOUNTAINS ............................. 0 of 2 * * CALIFORNIA NORTHERN GREAT BASIN ......................... 3 of 5 * 133 TRUCKEE RIVER ................................ 7 of 9 2312* 199 LAKE TAHOE ................................... 8 of 8 * 210 CARSON RIVER ................................. 6 of 9 * 192 WALKER RIVER ................................. 7 of 7 540* 204 KLAMATH ...................................... 14 of 18 * 134 COLORADO GUNNISON RIVER BASIN ......................... 10 of 16 * 105 UPPER COLORADO RIVER BASIN ................... 23 of 31 900* 106 SOUTH PLATTE RIVER BASIN ..................... 15 of 22 * 113 LARAMIE AND NORTH PLATTE RIVER BASINS ........ 11 of 12 82* 110 YAMPA AND WHITE RIVER BASINS ................. 16 of 20 127* 100 ARKANSAS RIVER BASIN ......................... 7 of 9 * 112 UPPER RIO GRANDE BASIN ....................... 8 of 16 50* 105 SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASIN .................. 15 of 19 133* 108 IDAHO NORTHERN PANHANDLE REGION .................... 9 of 10 * 132 SPOKANE RIVER BASIN .......................... 10 of 10 203* 126 CLEARWATER BASIN ............................. 15 of 16 175* 118 SALMON BASIN ................................. 20 of 22 254* 134 WEISER BASIN ................................. 4 of 4 * 131 PAYETTE BASIN ................................ 10 of 11 * 141 BOISE BASIN .................................. 9 of 10 1233* 152 BIG WOOD BASIN ............................... 8 of 9 804* 160 LITTLE WOOD BASIN ............................ 5 of 5 * 161 BIG LOST BASIN ............................... 5 of 5 * 160 LITTLE LOST, BIRCH BASINS .................... 3 of 4 * 135 MEDICINE LODGE, BEAVER, CAMAS BASINS ......... 3 of 4 * 126 HENRYS FORK, TETON BASINS .................... 5 of 8 452* 138 SNAKE BASIN ABOVE PALISADES .................. 14 of 18 167* 147 WILLOW, BLACKFOOT, PORTNEUF BASINS ........... 6 of 6 * 143 SNAKE BASIN ABOVE AMERICAN FALLS ............. 23 of 29 245* 144 RAFT BASIN ................................... 1 of 2 * 145 GOOSE CREEK BASIN ............................ 2 of 2 * 129 SALMON FALLS BASIN ........................... 5 of 5 * 127 BRUNEAU BASIN ................................ 5 of 5 * 130 OWYHEE BASIN ................................. 7 of 8 * 131 BEAR RIVER BASIN ............................. 14 of 15 * 142 MONTANA KOOTENAI RIVER BASIN ......................... 8 of 8 200* 126 FLATHEAD RIVER BASIN ......................... 13 of 16 138* 124 UPPER CLARK FORK RIVER BASIN ................. 13 of 15 10* 113 BITTERROOT RIVER BASIN ....................... 7 of 7 * 116 LOWER CLARK FORK RIVER BASIN ................. 8 of 8 239* 124 JEFFERSON RIVER BASIN ........................ 19 of 19 102* 113 MADISON RIVER BASIN .......................... 11 of 11 210* 122 GALLATIN RIVER BASIN ......................... 7 of 7 44* 115 MISSOURI HEADWATERS .......................... 31 of 31 113* 116 HEADWATERS MISSOURI MAINSTEM ................. 5 of 5 * 104 SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS .. 9 of 10 * 99 SUN, TETON AND MARIAS RIVER BASINS ........... 5 of 6 * 116 MISSOURI MAINSTEM RIVER BASIN ................ 19 of 21 * 105 ST. MARY AND MILK RIVER BASINS ............... 3 of 3 130* 120 UPPER YELLOWSTONE RIVER BASIN ................ 22 of 24 187* 125 WIND RIVER BASIN (WYOMING) ................... 11 of 13 191* 160 SHOSHONE RIVER BASIN (WYOMING) ............... 5 of 6 272* 154 BIGHORN RIVER BASIN (WYOMING) ................ 15 of 16 266* 131 TONGUE RIVER BASIN (WYOMING) ................. 6 of 7 * 112 POWDER RIVER BASIN (WYOMING) ................. 6 of 7 * 115 LOWER YELLOWSTONE RIVER BASIN ................ 30 of 35 235* 136 NEVADA NORTHERN GREAT BASIN ......................... 6 of 9 * 138 SNAKE RIVER .................................. 7 of 10 * 130 OWYHEE RIVER ................................. 5 of 5 * 133 UPPER HUMBOLDT RIVER ......................... 9 of 9 * 138 LOWER HUMBOLDT RIVER ......................... 5 of 9 * 135 CLOVER VALLEY & FRANKLIN RIVER ............... 4 of 6 * 137 EASTERN NEVADA BASINS ........................ 4 of 4 * 105 NEW MEXICO RIO CHAMA RIVER BASIN ........................ 4 of 4 * 125 UPPER RIO GRANDE BASIN ....................... 7 of 9 50* 104 SANGRE DE CRISTO MOUNTAIN RANGE BASINS ....... 8 of 11 * 104 JEMEZ RIVER BASIN ............................ 2 of 3 * 95 SAN FRANCISCO RIVER BASIN .................... 3 of 3 * 96 GILA RIVER BASIN ............................. 3 of 3 * 109 MIMBRES RIVER BASIN .......................... 2 of 2 * 119 PECOS RIVER BASIN ............................ 1 of 1 * 87 SAN JUAN RIVER HEADWATERS .................... 4 of 5 0* 99 ANIMAS RIVER BASIN ........................... 7 of 7 * 107 CIMARRON RIVER BASIN ......................... 1 of 2 * 106 ZUNI/BLUEWATER RIVER BASIN ................... 0 of 1 * 131 RIO HONDO BASIN .............................. 0 of 1 * 98 CHUSKA MOUNTAINS ............................. 0 of 1 * * OREGON OWYHEE ....................................... 7 of 8 * 131 MALHEUR ...................................... 3 of 3 * 124 GRANDE RONDE, POWDER, BURNT, IMNAHA .......... 15 of 17 * 127 UMATILLA, WALLA WALLA, WILLOW ................ 6 of 8 * 121 JOHN DAY ..................................... 13 of 13 * 123 UPPER DESCHUTES, CROOKED ..................... 14 of 14 211* 126 HOOD, SANDY, LOWER DESCHUTES ................. 7 of 8 82* 121 COAST RANGE .................................. 1 of 2 * 139 WILLAMETTE ................................... 17 of 23 211* 128 ROGUE, UMPQUA ................................ 10 of 12 242* 137 KLAMATH ...................................... 14 of 18 * 134 LAKE COUNTY, GOOSE LAKE ...................... 7 of 9 * 136 HARNEY ....................................... 8 of 9 * 117 UTAH RAFT RIVER ................................... 1 of 2 * 145 BEAR RIVER ................................... 17 of 24 * 145 WEBER-OGDEN RIVERS ........................... 17 of 20 * 129 PROVO R.-UTAH LAKE-JORDAN R. ................. 15 of 17 * 121 TOOELE VALLEY-VERNON CREEK ................... 3 of 4 * 115 NORTHEASTERN UINTAHS ......................... 6 of 10 * 107 DUCHESNE RIVER ............................... 12 of 13 * 128 PRICE-SAN RAFAEL ............................. 6 of 11 * 120 DIRTY DEVIL .................................. 3 of 6 * 111 SOUTH EASTERN UTAH ........................... 3 of 6 * 91 UPPER SEVIER RIVER ........................... 12 of 17 * 102 SAN PITCH RIVER .............................. 5 of 11 * * LOWER SEVIER RIVER ........................... 1 of 3 * * BEAVER RIVER ................................. 2 of 2 0* 108 ESCALANTE RIVER .............................. 3 of 4 * 94 SOUTHWESTERN UTAH ............................ 10 of 13 * 105 WASHINGTON NORTHERN PANHANDLE ........................... 9 of 10 * 132 SPOKANE ...................................... 10 of 10 203* 126 UPPER COLUMBIA ............................... 5 of 6 13600* 132 CENTRAL COLUMBIA ............................. 7 of 8 165* 117 UPPER YAKIMA ................................. 4 of 5 238* 105 LOWER YAKIMA ................................. 7 of 9 211* 129 LOWER SNAKE .................................. 21 of 22 206* 120 LOWER COLUMBIA ............................... 17 of 22 278* 131 SOUTH PUGET SOUND ............................ 7 of 10 145* 114 CENTRAL PUGET SOUND .......................... 9 of 9 231* 109 NORTH PUGET SOUND ............................ 7 of 12 180* * OLYMPIC ...................................... 3 of 4 * 138 WYOMING SNAKE RIVER .................................. 15 of 20 239* 145 MADISON-GALLATIN ............................. 5 of 5 448* 129 YELLOWSTONE .................................. 12 of 13 249* 132 WIND RIVER ................................... 10 of 12 191* 159 BIGHORN BASIN ................................ 10 of 11 0* 114 SHOSHONE RIVER ............................... 4 of 5 272* 158 POWDER RIVER ................................. 6 of 7 * 115 TONGUE RIVER ................................. 6 of 7 * 112 BELLE FOURCHE ................................ 1 of 1 * 83 CHEYENNE RIVER BASIN ......................... 2 of 2 * 86 UPPER N. PLATTE .............................. 14 of 18 125* 108 SWEETWATER ................................... 3 of 3 * 161 LOWER N. PLATTE .............................. 4 of 4 * 101 LARAMIE RIVER ................................ 6 of 6 * 104 S. PLATTE .................................... 2 of 3 * 105 LITTLE SNAKE RIVER ........................... 7 of 8 * 102 UPPER GREEN RIVER ............................ 10 of 13 * 156 LOWER GREEN RIVER ............................ 7 of 11 * 135 UPPER BEAR RIVER ............................. 7 of 9 * 135 ----------------------------------------------------------------------------- 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.