Wyoming Snow Precipitation Update
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: OCTOBER 1 , 2014
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
Base Camp 7030 .0 .0 * 38.8 31.8 122
Black Bear 8170 .0 .0 * 61.2 54.8 112
Blind Bull Sum 8650 .0 .0 * 38.9 30.8 126
Cottonwood Creek 7670 .0 .0 * 53.9 39.0 138
East Rim Divide 7930 .0 .0 * 27.1 19.9 136
Grand Targhee 9260 .0 .0 * 57.0 48.1 119
Granite Creek 6770 .0 .0 * 38.1 29.5 129
Grassy Lake 7265 .0 .0 * 60.3 52.1 116
Gros Ventre Summit 8750 .0 .0 * 27.6 23.5 117
Gunsight Pass 9820 .0 .0 * 34.0 25.7 132
Lewis Lake Divide 7850 .0 .0 * 60.9 50.4 121
Phillips Bench 8200 .0 .0 * 50.8 41.2 123
Salt River Summit 7760 .0 .0 * 32.3 26.8 121
Snake River Station 6920 .0 .0 * 42.6 34.7 123
Spring Creek Divide 9000 .0 .0 * 48.3 35.6 136
Thumb Divide 7980 .0 .0 * 32.7 29.5 111
Togwotee Pass 9580 .0 .0 * 47.1 38.6 122
Two Ocean Plateau 9240 .0 .0 * 49.9 43.0 116
Willow Creek 8380 .0 .0 * 61.9 51.9 119
Younts Peak 8350 -M .0 * -M 29.3 *
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Basin Index (%) * 122
MADISON-GALLATIN
Black Bear 8170 .0 .0 * 61.2 54.8 112
Canyon 7870 .0 .0 * 28.7 27.6 104
Madison Plateau 7750 .0 .0 * 43.2 40.3 107
West Yellowstone 6700 .0 .0 * 30.1 23.8 126
Whiskey Creek 6800 .0 .0 * 37.2 32.7 114
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Basin Index (%) * 112
YELLOWSTONE
Beartooth Lake 9360 .0 .0 * 45.7 32.9 139
Burnt Mtn 5880 .0 .0 * 35.6 29.5 121
Canyon 7870 .0 .0 * 28.7 27.6 104
Cole Creek 7850 .0 .0 * 33.6 31.2 108
Evening Star 9200 .0 .0 * 59.2 44.8 132
Fisher Creek 9100 .0 .0 * 60.6 51.6 117
Northeast Entrance 7350 .0 .0 * 29.3 24.8 118
Parker Peak 9400 .0 .0 * 47.3 31.8 149
Sylvan Lake 8420 .0 .0 * 47.3 38.2 124
Thumb Divide 7980 .0 .0 * 32.7 29.5 111
Two Ocean Plateau 9240 .0 .0 * 49.9 43.0 116
White Mill 8700 .0 .0 * 46.9 40.3 116
Wolverine 7650 .0 .0 * 29.5 23.4 126
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Basin Index (%) * 122
WIND RIVER
Burroughs Creek 8750 .0 .0 * 6.2 28.2 22
Castle Creek 8400 .0 -M * 23.0 -M *
Cold Springs 9630 .0 .0 * 22.6 21.7 104
Deer Park 9700 .0 .0 * 32.0 34.9 92
Hobbs Park 10100 .0 .0 * 27.2 27.8 98
Kirwin 9550 .0 .0 * 30.7 26.5 116
Little Warm 9370 .0 .0 * 27.1 25.9 105
Owl Creek 8975 .0 .0 * 14.4 17.2 84
South Pass 9040 .0 .0 * 22.4 29.5 76
St. Lawrence Alt 8620 .0 .0 * 18.2 20.2 90
Togwotee Pass 9580 .0 .0 * 47.1 38.6 122
Townsend Creek 8700 .0 .0 * 20.6 24.6 84
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Basin Index (%) * 91
BIGHORN BASIN
Bald Mtn. 9380 .0 .0 * 35.4 32.2 110
Bear Trap Meadow 8200 .0 .0 * 25.6 20.8 123
Bone Springs Div 9350 .0 .0 * 32.6 31.4 104
Grave Springs 8550 .0 .0 * 23.2 23.0 101
Kirwin 9550 .0 .0 * 30.7 26.5 116
Marquette 8760 .0 -M * 25.5 -M *
Middle Powder 7760 .0 .0 * 29.6 25.0 118
Owl Creek 8975 .0 .0 * 14.4 17.2 84
Powder River Pass 9480 .0 .0 * 31.6 26.7 118
Shell Creek 9580 .0 .0 * 33.3 28.3 118
Timber Creek 7950 .0 .0 * 22.5 21.1 107
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Basin Index (%) * 111
SHOSHONE RIVER
Blackwater 9780 .0 .0 * 45.7 36.3 126
Evening Star 9200 .0 .0 * 59.2 44.8 132
Marquette 8760 .0 -M * 25.5 -M *
Sylvan Road 7120 .0 .0 * 35.2 26.9 131
Younts Peak 8350 -M .0 * -M 29.3 *
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Basin Index (%) * 130
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 25.6 20.8 123
Cloud Peak Reservoir 9860 .0 .0 * 37.7 30.4 124
Grave Springs 8550 .0 .0 * 23.2 23.0 101
Hansen Sawmill 8360 .0 .0 * 26.0 21.9 119
Middle Powder 7760 .0 .0 * 29.6 25.0 118
Powder River Pass 9480 .0 .0 * 31.6 26.7 118
Soldier Park 8720 .0 -M * 26.6 -M *
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Basin Index (%) * 118
TONGUE RIVER
Big Goose 7990 .0 .0 * 28.4 24.6 115
Bone Springs Div 9350 .0 .0 * 32.6 31.4 104
Burgess Junction 7880 .0 .0 * 27.8 26.0 107
Dome Lake 8880 .0 .0 * 34.1 28.3 120
Little Goose 8870 .0 -M * 34.7 -M *
Sucker Creek 8880 .0 .0 * 33.4 29.9 112
Tie Creek 6870 .0 .0 * 28.8 26.7 108
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Basin Index (%) * 111
BELLE FOURCHE
Cole Canyon 5910 .0 .0 * 28.1 25.3 111
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Basin Index (%) * 111
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 32.1 27.5 117
North Rapid Creek 6130 .0 .0 * 33.3 27.2 122
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Basin Index (%) * 120
UPPER N. PLATTE
Arapaho Ridge 10960 .4 .0 * 45.7 38.5 119
Blackhall Mtn 9820 .0 -M * 53.0 -M *
Columbine 9160 .0 .0 * 50.0 38.1 131
Divide Peak 8880 .0 .0 * 38.4 33.9 113
Joe Wright 10120 .3 .0 * 56.3 44.3 127
Laprele Creek 8375 .0 .0 * 22.6 24.2 93
Med Bow 10500 .0 -M * 59.6 -M *
North French Creek 10130 .0 .0 * 53.2 43.2 123
Never Summer 10280 1.0 .0 * 43.7 -M *
Old Battle 10000 .0 .0 * 55.0 51.8 106
Rawah 9020 .1 .0 * 36.4 27.2 134
Sage Creek Basin 7850 .0 .0 * 22.2 23.1 96
Sand Lake 10050 .0 .0 * 51.2 40.9 125
South Brush Creek 8440 .0 .0 * 26.1 27.5 95
Tower 10500 .7 .0 * 71.5 58.4 122
Webber Springs 9250 .0 .0 * 46.5 40.5 115
Willow Creek Pass 9540 .3 .0 * 32.3 26.0 124
Zirkel 9340 .2 .0 * 58.0 43.4 134
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Basin Index (%) * 119
SWEETWATER
Deer Park 9700 .0 .0 * 32.0 34.9 92
Larsen Creek 9000 .0 .0 * 24.4 -M *
South Pass 9040 .0 .0 * 22.4 29.5 76
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Basin Index (%) * 84
LOWER N. PLATTE
Casper Mtn. 7900 .0 .0 * 26.2 27.9 94
Laprele Creek 8375 .0 .0 * 22.6 24.2 93
Reno Hill 8400 .1 .0 * 34.1 28.7 119
Windy Peak 7900 .0 .0 * 25.9 22.9 113
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Basin Index (%) * 105
LARAMIE RIVER
Brooklyn Lake 10240 .0 .0 * 45.6 35.3 129
Cinnabar Park 9574 .0 .0 * 46.1 38.0 121
Crow Creek 8330 .0 .0 * 28.9 26.1 111
Deadman Hill 10220 .3 .0 * 41.0 31.1 132
Rawah 9020 .1 .0 * 36.4 27.2 134
Roach 9700 .0 .0 * 42.7 33.3 128
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Basin Index (%) * 126
S. PLATTE
Black Mountain 8920 .0 -M * 31.1 -M *
Crow Creek 8330 .0 .0 * 28.9 26.1 111
Deadman Hill 10220 .3 .0 * 41.0 31.1 132
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Basin Index (%) * 122
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 27.7 24.3 114
Divide Peak 8880 .0 .0 * 38.4 33.9 113
Elk River 8700 .0 .0 * 35.8 32.4 110
Little Snake River 8915 .0 .0 * 50.4 43.8 115
Old Battle 10000 .0 .0 * 55.0 51.8 106
Sage Creek Basin 7850 .0 .0 * 22.2 23.1 96
Sandstone RS 8150 .0 .0 * 27.2 29.3 93
Whiskey Park 8950 .0 .0 * 55.4 41.8 133
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Basin Index (%) * 111
UPPER GREEN RIVER
Big Sandy Opening 9080 .0 .0 * 24.2 24.2 100
Blind Bull Sum 8650 .0 .0 * 38.9 30.8 126
East Rim Divide 7930 .0 .0 * 27.1 19.9 136
Elkhart Park G.S. 9400 .0 .0 * 30.7 24.7 124
Gros Ventre Summit 8750 .0 .0 * 27.6 23.5 117
Gunsight Pass 9820 .0 .0 * 34.0 25.7 132
Kendall R.S. 7740 .0 .0 * 34.1 22.8 150
Loomis Park 8240 .0 .0 * 37.9 27.7 137
New Fork Lake 8340 .0 .0 * 24.8 20.2 123
Pocket Creek 9360 .0 -M * 29.7 -M *
Snider Basin 8060 .0 .0 * 31.6 21.9 144
Spring Creek Divide 9000 .0 .0 * 48.3 35.6 136
Triple Peak 8500 .0 .0 * 54.6 38.0 144
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Basin Index (%) * 131
LOWER GREEN RIVER
Blacks Fork Jct 8870 .0 -M * 26.4 -M *
Buck Pasture 9700 .0 -M * 25.6 -M *
EF Blacks Fork GS 9360 .0 -M * 24.5 -M *
Hams Fork 7840 .0 .0 * 27.7 19.7 141
Hewinta 9519 .0 .0 * 28.9 26.1 111
Hickerson Park 9145 .0 .0 * 23.2 21.1 110
Hole-in-Rock 9150 .0 .0 * 24.1 21.2 114
Indian Creek 9425 .0 .0 * 42.6 33.8 126
Kelley R.S. 8180 .0 .0 * 34.8 27.9 125
Spirit Lk 10235 .0 -M * 33.1 39.2 84
Steel Creek Park 10200 .0 .0 * 32.6 30.0 109
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Basin Index (%) * 113
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * 25.4 -M *
Bug Lake 7950 .0 .0 * 35.5 29.8 119
Burts Miller Ranch 8000 .0 -M * 15.0 20.4 74
Chalk Creek #1 8993 .0 .0 * 37.8 40.2 94
Hayden Fork 9212 .0 .0 * 39.7 34.1 116
Kelley R.S. 8180 .0 .0 * 34.8 27.9 125
Lily Lake 9156 .0 .0 * 30.2 29.4 103
Monte Cristo 8960 .0 .0 * 44.2 39.2 113
Salt River Summit 7760 .0 .0 * 32.3 26.8 121
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Basin Index (%) * 109
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
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 TOTAL 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.
Contact your state water supply staff for assistance.
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.
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and
Total Precipitation values
If the Basin Index (%) value is flagged as potentially
invalid, care should be taken to evaluate if the value is representative
of conditions in the basin.
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 TOTAL 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.
Contact your state water supply staff for assistance.
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.