Western US SNOTEL Snow/Precipitation Update Report
Based on Mountain Data from NRCS SNOTEL Sites
**Provisional data, subject to revision**
Data based on the first reading of the day (typically 00:00) for Thursday, February 02, 2023
State
  River Basin
Snow Water
Equivalent
Water Year-to-Date
Precipitation
# of
Sites
Percent of
Median
# of
Sites
Percent of
Median
ALASKA
  ANCHORAGE/SHIP CREEK BASIN 4/4 105    4/4 100   
  SUSITNA BASIN 2/5 117    4/5 124   
  NORTHERN KENAI MOUNTAINS 6/7 96    6/7 81   
  SOUTHERN KENAI 3/6 114    5/6 71   
  COPPER BASIN 2/3 119    2/3 131   
  PRINCE WILLIAM SOUND 1/7 103    3/7 97   
  CHENA BASIN 4/7 127    4/7 112   
  UPPER TANANA 2/4 175    2/4 128   
  KOYUKUK BASIN 2/6 99    4/6 108   
  CENTRAL YUKON BASIN 0/5 *   3/5 125   
  NORTON SOUND 0/4 *   2/4 107   
  KUPARUK-SAGAVANIRKTOK RIVER BASIN 0/3 *   3/3 123   
  NORTHWEST ARCTIC RIVER BASIN 0/1 *   1/1 193   
  SOUTHEAST ALASKA BASIN 1/3 100    2/3 114   
ARIZONA
  VERDE RIVER BASIN 8/10 288    8/10 155   
  SAN FRANCISCO PEAKS 1/1 195    1/1 159   
  CENTRAL MOGOLLON RIM 3/4 201    3/4 150   
  LITTLE COLORADO RIVER BASIN 10/11 199    10/11 147   
  SALT RIVER BASIN 9/10 137    7/10 135   
  SAN FRANCISCO / UPPER GILA RIVER BASIN 8/8 116    7/8 152   
  CHUSKA MOUNTAINS 1/2 144    2/2 136   
CALIFORNIA
  NORTHERN GREAT BASIN 7/8 149    7/8 118   
  TRUCKEE RIVER 11/12 177    11/12 154   
  LAKE TAHOE 11/11 187    11/11 175   
  CARSON RIVER 12/12 231    12/12 208   
  WALKER RIVER 7/7 249    7/7 222   
COLORADO
  GUNNISON RIVER BASIN 14/16 144    14/16 131   
  UPPER COLORADO RIVER BASIN 31/35 130    30/35 119   
  SOUTH PLATTE RIVER BASIN 21/22 116    21/22 104   
  LARAMIE AND NORTH PLATTE RIVER BASINS 12/12 134    11/12 121   
  YAMPA AND WHITE RIVER BASINS 20/22 149    19/22 134   
  ARKANSAS RIVER BASIN 11/11 81    11/11 88   
  UPPER RIO GRANDE BASIN 16/20 102    17/20 98   
  SAN MIGUEL, DOLORES, ANIMAS AND SAN JUAN RIVER BASINS 19/21 139    19/21 125   
IDAHO
  NORTHERN PANHANDLE REGION 9/10 85    8/10 77   
  COEUR D'ALENE-ST. JOE RIVER BASIN 7/7 90    7/7 74   
  CLEARWATER BASIN 16/16 91    16/16 76   
  SALMON BASIN 19/20 101    19/20 89   
  WEISER BASIN 3/4 112    3/4 92   
  PAYETTE BASIN 11/12 102    10/12 90   
  BOISE BASIN 9/11 111    10/11 99   
  BIG WOOD BASIN 8/9 128    8/9 107   
  LITTLE WOOD BASIN 4/5 133    4/5 126   
  BIG LOST BASIN 5/5 132    5/5 122   
  LITTLE LOST 3/3 130    3/3 120   
  BIRCH, MEDICINE LODGE, BEAVER, CAMAS BASINS 4/4 139    4/4 135   
  HENRYS FORK, TETON BASINS 8/8 110    8/8 107   
  SNAKE BASIN ABOVE PALISADES 21/21 104    21/21 97   
  WILLOW, BLACKFOOT, PORTNEUF BASINS 6/7 149    6/7 132   
  SNAKE BASIN ABOVE AMERICAN FALLS 29/29 113    29/29 105   
  RAFT BASIN 2/2 129    2/2 117   
  GOOSE CREEK BASIN 2/2 124    2/2 104   
  SALMON FALLS BASIN 4/6 118    4/6 108   
  BRUNEAU BASIN 5/8 121    5/8 119   
  OWYHEE BASIN 8/12 129    9/12 113   
  BEAR RIVER BASIN 21/21 149    21/21 130   
MONTANA
  KOOTENAI RIVER BASIN 8/8 78    8/8 75   
  FLATHEAD RIVER BASIN 14/17 98    14/17 87   
  UPPER CLARK FORK RIVER BASIN 14/14 90    14/14 90   
  BITTERROOT RIVER BASIN 8/8 82    8/8 75   
  LOWER CLARK FORK RIVER BASIN 9/9 83    9/9 73   
  JEFFERSON RIVER BASIN 18/21 104    19/21 106   
  MADISON RIVER BASIN 11/12 123    11/12 120   
  GALLATIN RIVER BASIN 7/7 111    7/7 108   
  MISSOURI HEADWATERS 30/31 111    31/31 110   
  HELENA VALLEY 4/4 104    4/4 115   
  SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS 7/9 119    6/9 117   
  SUN, TETON AND MARIAS RIVER BASINS 5/6 90    5/6 90   
  MISSOURI MAINSTEM RIVER BASIN 18/21 107    17/21 107   
  ST. MARYS RIVER BASIN 2/2 79    2/2 76   
  MILK RIVER BASIN 1/1 169    1/1 139   
  UPPER YELLOWSTONE RIVER BASIN 20/22 97    21/22 99   
  WIND RIVER BASIN (WYOMING) 11/13 121    11/13 111   
  SHOSHONE RIVER BASIN (WYOMING) 6/6 93    6/6 91   
  BIGHORN RIVER BASIN (WYOMING) 24/26 107    24/26 102   
  TONGUE RIVER BASIN (WYOMING) 7/7 111    7/7 112   
  POWDER RIVER BASIN (WYOMING) 7/7 114    7/7 108   
  LOWER YELLOWSTONE RIVER BASIN 33/35 109    33/35 105   
NEVADA
  NORTHERN GREAT BASIN 7/8 149    7/8 118   
  SNAKE RIVER 7/11 122    7/11 114   
  OWYHEE RIVER 6/10 136    7/10 116   
  UPPER HUMBOLDT RIVER 9/17 174    10/17 146   
  LOWER HUMBOLDT RIVER 6/10 168    7/10 145   
  CLOVER VALLEY & FRANKLIN RIVER 5/7 199    5/7 172   
  EASTERN NEVADA BASINS 5/14 244    5/14 207   
  SOUTHERN NEVADA - Spring Mountains 3/3 249    3/3 173   
NEW MEXICO
  RIO CHAMA RIVER BASIN 4/5 123    3/5 106   
  UPPER RIO GRANDE BASIN - New Mexico 9/12 90    10/12 101   
  SANGRE DE CRISTO MOUNTAIN RANGE BASINS 9/11 89    10/11 102   
  JEMEZ RIVER BASIN 3/4 99    3/4 111   
  SAN FRANCISCO RIVER BASIN 6/6 126    5/6 153   
  GILA RIVER BASIN 3/3 99    3/3 155   
  MIMBRES RIVER BASIN 2/2 104    2/2 150   
  PECOS RIVER BASIN 3/3 89    3/3 114   
  SAN JUAN RIVER BASIN 12/13 129    12/13 118   
  ANIMAS RIVER BASIN 6/7 126    6/7 121   
  CANADIAN RIVER BASIN 5/7 77    6/7 93   
  ZUNI/BLUEWATER RIVER BASIN 1/1 141    1/1 164   
  RIO HONDO BASIN 1/1 33    1/1 149   
  CHUSKA MOUNTAINS 1/2 144    2/2 136   
OREGON
  OWYHEE 8/12 129    9/12 113   
  MALHEUR 2/3 97    3/3 96   
  GRANDE RONDE, POWDER, BURNT, IMNAHA 19/19 103    19/19 92   
  UMATILLA, WALLA WALLA, WILLOW 10/10 97    10/10 92   
  JOHN DAY 13/13 109    13/13 94   
  UPPER DESCHUTES, CROOKED 13/14 93    13/14 79   
  HOOD, SANDY, LOWER DESCHUTES 7/10 96    7/10 80   
  COAST RANGE 2/2 *   2/2 89   
  WILLAMETTE 20/23 89    20/23 78   
  ROGUE, UMPQUA 12/13 95    12/13 85   
  KLAMATH 18/20 106    18/20 91   
  LAKE COUNTY, GOOSE LAKE 6/7 123    6/7 104   
  HARNEY 10/12 142    11/12 112   
UTAH
  RAFT RIVER 2/2 129    2/2 117   
  BEAR RIVER 25/26 150    25/26 131   
  WEBER-OGDEN RIVERS 20/23 166    20/23 132   
  PROVO R.-UTAH LAKE-JORDAN R. 19/25 180    19/25 147   
  TOOELE VALLEY-VERNON CREEK 3/4 216    3/4 163   
  NORTHEASTERN UINTAHS 11/13 168    11/13 123   
  DUCHESNE RIVER 14/15 170    14/15 144   
  PRICE-SAN RAFAEL 8/14 194    8/14 150   
  DIRTY DEVIL 5/9 170    5/9 144   
  SOUTH EASTERN UTAH 5/11 203    5/11 159   
  UPPER SEVIER RIVER 17/23 181    18/23 151   
  SAN PITCH RIVER 6/12 190    6/12 146   
  LOWER SEVIER RIVER 3/5 208    3/5 190   
  BEAVER RIVER 3/3 187    3/3 158   
  ESCALANTE RIVER 4/5 179    4/5 138   
  SOUTHWESTERN UTAH 10/13 222    10/13 185   
WASHINGTON
  SPOKANE 9/9 93    9/9 78   
  LOWER PEND OREILLE 4/5 90    4/5 78   
  UPPER COLUMBIA 7/9 111    6/9 99   
  CENTRAL COLUMBIA 11/11 86    8/11 86   
  UPPER YAKIMA 7/7 91    7/7 79   
  NACHES 8/8 81    7/8 81   
  LOWER YAKIMA 3/4 95    2/4 107   
  KLICKITAT 4/5 98    3/5 94   
  LOWER SNAKE, WALLA WALLA 14/14 100    14/14 92   
  LOWER COLUMBIA 15/17 102    14/17 88   
  SOUTH PUGET SOUND 13/14 85    12/14 83   
  CENTRAL PUGET SOUND 9/9 89    8/9 78   
  NORTH PUGET SOUND 12/13 79    9/13 73   
  OLYMPIC 4/4 79    4/4 86   
WYOMING
  SNAKE RIVER 22/22 104    22/22 96   
  MADISON HEADWATERS IN WYOMING 4/5 126    4/5 123   
  YELLOWSTONE HEADWATERS IN WYOMING 11/12 96    11/12 99   
  WIND RIVER 9/11 121    9/11 111   
  BIGHORN BASIN 11/11 107    11/11 103   
  SHOSHONE RIVER 6/6 93    6/6 91   
  POWDER RIVER 7/7 114    7/7 108   
  TONGUE RIVER 7/7 111    7/7 112   
  BELLE FOURCHE 3/3 116    3/3 106   
  CHEYENNE RIVER BASIN 2/2 106    2/2 104   
  UPPER N. PLATTE 18/20 134    18/20 121   
  SWEETWATER 3/3 159    3/3 131   
  LOWER N. PLATTE 4/4 130    4/4 117   
  LARAMIE RIVER 6/7 123    7/7 111   
  S. PLATTE 1/1 77    1/1 92   
  LITTLE SNAKE RIVER 8/9 154    8/9 136   
  UPPER GREEN RIVER 14/15 103    13/15 99   
  LOWER GREEN RIVER 10/12 143    10/12 115   
  UPPER BEAR RIVER 12/12 144    12/12 127