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SNOTEL (SNOwpack TELemetry) Snowpack Report - Western United States |
Denver Seasonal Snow Totals Colorado Ski Conditions |
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 WEDNESDAY: AUGUST 21 , 2019
-----------------------------------------------------------------------------
STATE PERCENT OF Normal
RIVER BASIN Number Snow Water Accum
of Sites Equivalent Precip
-----------------------------------------------------------------------------
ALASKA
ANCHORAGE/SHIP CREEK BASIN ................... 3 of 4 * 100
SUSITNA BASIN ................................ 3 of 5 * 91
NORTHERN KENAI MOUNTAINS ..................... 7 of 7 * 113
SOUTHERN KENAI ............................... 2 of 6 * 114
COPPER BASIN ................................. 2 of 3 * 100
PRINCE WILLIAM SOUND ......................... 1 of 7 * *
CHENA BASIN .................................. 6 of 7 * 112
UPPER TANANA ................................. 2 of 4 * *
KOYUKUK BASIN ................................ 2 of 6 * 115
CENTRAL YUKON BASIN .......................... 0 of 5 * 113
NORTON SOUND ................................. 0 of 4 * 147
KUPARUK-SAGAVANIRKTOK RIVER BASIN ............ 0 of 3 * 115
NORTHWEST ARCTIC RIVER BASIN ................. 0 of 1 * *
SOUTHEAST ALASKA BASIN ....................... 1 of 3 * 86
ARIZONA
VERDE RIVER BASIN ............................ 5 of 10 * 116
SAN FRANCISCO PEAKS .......................... 1 of 1 * 124
CENTRAL MOGOLLON RIM ......................... 3 of 4 * 108
LITTLE COLORADO - SOUTHERN HEADWATERS ........ 5 of 6 * 110
UPPER SALT RIVER BASIN / WHITE MOUNTAINS ..... 7 of 9 * 104
SAN FRANCISCO / UPPER GILA RIVER BASIN ....... 7 of 8 * 84
CHUSKA MOUNTAINS ............................. 0 of 2 * *
CALIFORNIA
NORTHERN GREAT BASIN ......................... 2 of 5 * *
TRUCKEE RIVER ................................ 7 of 9 * 123
LAKE TAHOE ................................... 8 of 8 * 129
CARSON RIVER ................................. 9 of 9 * 123
WALKER RIVER ................................. 7 of 7 * 132
KLAMATH ...................................... 15 of 18 * 97
COLORADO
GUNNISON RIVER BASIN ......................... 11 of 16 * 123
UPPER COLORADO RIVER BASIN ................... 25 of 31 * 115
SOUTH PLATTE RIVER BASIN ..................... 16 of 22 * 110
LARAMIE AND NORTH PLATTE RIVER BASINS ........ 12 of 12 * 117
YAMPA AND WHITE RIVER BASINS ................. 18 of 20 * 115
ARKANSAS RIVER BASIN ......................... 7 of 9 * 110
UPPER RIO GRANDE BASIN ....................... 11 of 16 * 118
SAN MIGUEL, DOLORES, ANIMAS
AND SAN JUAN RIVER BASIN .................. 16 of 19 * 120
IDAHO
NORTHERN PANHANDLE REGION .................... 8 of 10 * 79
SPOKANE RIVER BASIN .......................... 6 of 10 * 84
CLEARWATER BASIN ............................. 11 of 16 * 92
SALMON BASIN ................................. 18 of 22 * 99
WEISER BASIN ................................. 4 of 4 * 116
PAYETTE BASIN ................................ 10 of 11 * 104
BOISE BASIN .................................. 8 of 10 * 107
BIG WOOD BASIN ............................... 7 of 9 * 106
LITTLE WOOD BASIN ............................ 5 of 5 * 118
BIG LOST BASIN ............................... 5 of 5 * 112
LITTLE LOST, BIRCH BASINS .................... 2 of 4 * 101
MEDICINE LODGE, BEAVER, CAMAS BASINS ......... 2 of 4 * 95
HENRYS FORK, TETON BASINS .................... 8 of 8 * 111
SNAKE BASIN ABOVE PALISADES .................. 17 of 18 * 101
WILLOW, BLACKFOOT, PORTNEUF BASINS ........... 6 of 6 * 113
SNAKE BASIN ABOVE AMERICAN FALLS ............. 28 of 29 * 106
RAFT BASIN ................................... 1 of 2 * 115
GOOSE CREEK BASIN ............................ 2 of 2 * 130
SALMON FALLS BASIN ........................... 5 of 6 * 126
BRUNEAU BASIN ................................ 5 of 6 * 124
OWYHEE BASIN ................................. 8 of 8 * 118
BEAR RIVER BASIN ............................. 14 of 15 * 109
MONTANA
KOOTENAI RIVER BASIN ......................... 4 of 8 * 76
FLATHEAD RIVER BASIN ......................... 9 of 16 * 90
UPPER CLARK FORK RIVER BASIN ................. 9 of 15 * 92
BITTERROOT RIVER BASIN ....................... 5 of 7 * 89
LOWER CLARK FORK RIVER BASIN ................. 6 of 8 * 89
JEFFERSON RIVER BASIN ........................ 17 of 19 * 98
MADISON RIVER BASIN .......................... 11 of 11 * 105
GALLATIN RIVER BASIN ......................... 5 of 7 * 111
MISSOURI HEADWATERS .......................... 27 of 31 * 103
HEADWATERS MISSOURI MAINSTEM ................. 5 of 5 * 102
SMITH, JUDITH, AND MUSSELSHELL RIVER BASINS .. 6 of 10 * 103
SUN, TETON AND MARIAS RIVER BASINS ........... 3 of 6 * 93
MISSOURI MAINSTEM RIVER BASIN ................ 14 of 21 * 100
ST. MARY AND MILK RIVER BASINS ............... 3 of 3 * 84
UPPER YELLOWSTONE RIVER BASIN ................ 16 of 24 * 105
WIND RIVER BASIN (WYOMING) ................... 9 of 13 * 95
SHOSHONE RIVER BASIN (WYOMING) ............... 4 of 6 * 110
BIGHORN RIVER BASIN (WYOMING) ................ 14 of 16 * 104
TONGUE RIVER BASIN (WYOMING) ................. 5 of 7 * 103
POWDER RIVER BASIN (WYOMING) ................. 6 of 7 * 100
LOWER YELLOWSTONE RIVER BASIN ................ 27 of 35 * 101
NEVADA
NORTHERN GREAT BASIN ......................... 5 of 9 * *
SNAKE RIVER .................................. 7 of 11 * 126
OWYHEE RIVER ................................. 5 of 5 * 119
UPPER HUMBOLDT RIVER ......................... 8 of 9 * 128
LOWER HUMBOLDT RIVER ......................... 5 of 9 * *
CLOVER VALLEY & FRANKLIN RIVER ............... 3 of 6 * 136
EASTERN NEVADA BASINS ........................ 3 of 4 * 141
NEW MEXICO
RIO CHAMA RIVER BASIN ........................ 4 of 4 * 120
UPPER RIO GRANDE BASIN ....................... 9 of 9 * 120
SANGRE DE CRISTO MOUNTAIN RANGE BASINS ....... 9 of 11 * 107
JEMEZ RIVER BASIN ............................ 1 of 3 * 111
SAN FRANCISCO RIVER BASIN .................... 3 of 3 * 78
GILA RIVER BASIN ............................. 3 of 3 * 70
MIMBRES RIVER BASIN .......................... 2 of 2 * 74
PECOS RIVER BASIN ............................ 1 of 1 * 106
SAN JUAN RIVER HEADWATERS .................... 5 of 5 * 119
ANIMAS RIVER BASIN ........................... 7 of 7 * 124
CIMARRON RIVER BASIN ......................... 2 of 2 * 117
ZUNI/BLUEWATER RIVER BASIN ................... 1 of 1 * 87
RIO HONDO BASIN .............................. 1 of 1 * 101
CHUSKA MOUNTAINS ............................. 0 of 1 * *
OREGON
OWYHEE ....................................... 8 of 8 * 118
MALHEUR ...................................... 3 of 3 * 115
GRANDE RONDE, POWDER, BURNT, IMNAHA .......... 14 of 17 * 108
UMATILLA, WALLA WALLA, WILLOW ................ 6 of 8 * 112
JOHN DAY ..................................... 9 of 13 * 113
UPPER DESCHUTES, CROOKED ..................... 13 of 14 * 91
HOOD, SANDY, LOWER DESCHUTES ................. 7 of 8 * 81
COAST RANGE .................................. 1 of 2 * 75
WILLAMETTE ................................... 18 of 23 * 87
ROGUE, UMPQUA ................................ 12 of 12 * 94
KLAMATH ...................................... 15 of 18 * 97
LAKE COUNTY, GOOSE LAKE ...................... 7 of 9 * 109
HARNEY ....................................... 5 of 9 * 113
UTAH
RAFT RIVER ................................... 1 of 2 * 115
BEAR RIVER ................................... 17 of 24 * 110
WEBER-OGDEN RIVERS ........................... 15 of 20 * 119
PROVO R.-UTAH LAKE-JORDAN R. ................. 15 of 17 * 126
TOOELE VALLEY-VERNON CREEK ................... 3 of 4 * 128
NORTHEASTERN UINTAHS ......................... 4 of 10 * 112
DUCHESNE RIVER ............................... 11 of 13 * 130
PRICE-SAN RAFAEL ............................. 6 of 11 * 133
DIRTY DEVIL .................................. 2 of 6 * 127
SOUTH EASTERN UTAH ........................... 3 of 7 * *
UPPER SEVIER RIVER ........................... 11 of 17 * 133
SAN PITCH RIVER .............................. 5 of 11 * *
LOWER SEVIER RIVER ........................... 0 of 3 * *
BEAVER RIVER ................................. 2 of 2 * 147
ESCALANTE RIVER .............................. 2 of 4 * 134
SOUTHWESTERN UTAH ............................ 10 of 13 * 138
WASHINGTON
NORTHERN PANHANDLE ........................... 8 of 10 * 79
SPOKANE ...................................... 6 of 10 * 84
UPPER COLUMBIA ............................... 5 of 6 * 82
CENTRAL COLUMBIA ............................. 6 of 8 * 86
UPPER YAKIMA ................................. 4 of 5 * 81
LOWER YAKIMA ................................. 7 of 9 * 84
LOWER SNAKE .................................. 18 of 22 * 97
LOWER COLUMBIA ............................... 17 of 22 * 80
SOUTH PUGET SOUND ............................ 7 of 10 * 83
CENTRAL PUGET SOUND .......................... 9 of 9 * 86
NORTH PUGET SOUND ............................ 8 of 12 * 84
OLYMPIC ...................................... 3 of 4 * 84
WYOMING
SNAKE RIVER .................................. 18 of 20 * 103
MADISON-GALLATIN ............................. 5 of 5 * 109
YELLOWSTONE .................................. 12 of 14 * 106
WIND RIVER ................................... 9 of 12 * 95
BIGHORN BASIN ................................ 10 of 11 * 101
SHOSHONE RIVER ............................... 4 of 6 * 110
POWDER RIVER ................................. 6 of 7 * 100
TONGUE RIVER ................................. 5 of 7 * 103
BELLE FOURCHE ................................ 2 of 2 * 111
CHEYENNE RIVER BASIN ......................... 1 of 2 * 88
UPPER N. PLATTE .............................. 17 of 19 * 112
SWEETWATER ................................... 3 of 3 * 85
LOWER N. PLATTE .............................. 3 of 4 * 109
LARAMIE RIVER ................................ 7 of 7 * 109
S. PLATTE .................................... 2 of 3 * 100
LITTLE SNAKE RIVER ........................... 7 of 8 * 109
UPPER GREEN RIVER ............................ 13 of 14 * 100
LOWER GREEN RIVER ............................ 5 of 11 * *
UPPER BEAR RIVER ............................. 8 of 10 * 107
-----------------------------------------------------------------------------
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.
Colorado Snow Water Content
River Basin Snow Water Content
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