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 MONDAY: JANUARY 9 , 2017
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
Base Camp 7030 12.0 8.3 145 19.8 11.2 177
Black Bear 8170 17.3 19.4 89 26.9 20.0 134
Blind Bull Sum 8650 16.2 10.8 150 15.7 10.3 152
Cottonwood Creek 7670 11.6 9.2 126 18.7 12.6 148
East Rim Divide 7930 8.4 5.0 168 11.0 6.2 177
Grand Targhee 9260 25.7 20.0 128 23.6 17.1 138
Granite Creek 6770 11.8 7.3 162 18.0 10.7 168
Grassy Lake 7265 17.3 14.8 117 29.1 19.2 152
Gros Ventre Summit 8750 7.5 6.9 109 11.7 6.7 175
Gunsight Pass 9820 8.2 6.9 119 12.5 7.2 174
Lewis Lake Divide 7850 14.6 15.0 97 26.0 18.8 138
Phillips Bench 8200 13.6 12.7 107 23.1 14.6 158
Salt River Summit 7760 7.2 5.5 131 13.2 8.5 155
Snake River Station 6920 11.3 7.8 145 20.1 12.4 162
Spring Creek Divide 9000 14.8 11.0 135 19.9 12.3 162
Thumb Divide 7980 7.6 7.1 107 13.6 9.8 139
Togwotee Pass 9580 15.4 12.2 126 19.1 12.9 148
Two Ocean Plateau 9240 19.1 14.2 135 20.3 14.1 144
Willow Creek 8380 13.7 12.5 110 24.7 17.4 142
Younts Peak 8350 9.3 7.5 124 13.9 8.6 162
----- -----
Basin Index (%) 123 152
MADISON-GALLATIN
Black Bear 8170 17.3 19.4 89 26.9 20.0 134
Canyon 7870 7.6 6.4 119 13.8 8.7 159
Madison Plateau 7750 10.2 11.1 92 20.0 14.1 142
West Yellowstone 6700 6.4 5.5 116 13.7 7.9 173
Whiskey Creek 6800 6.8 7.8 87 14.1 10.9 129
----- -----
Basin Index (%) 96 144
YELLOWSTONE
Beartooth Lake 9360 13.0 11.1 117 10.3 10.3 100
Burnt Mtn 5880 3.9 1.9 205 7.9 7.1 111
Canyon 7870 7.6 6.4 119 13.8 8.7 159
Cole Creek 7850 5.5 6.6 83 5.2 6.7 78
Evening Star 9200 15.4 12.8 120 21.6 14.7 147
Fisher Creek 9100 15.0 16.8 89 20.3 16.8 121
Northeast Entrance 7350 5.2 4.9 106 10.5 6.8 154
Parker Peak 9400 13.6 11.1 123 16.6 9.4 177
Sylvan Lake 8420 10.4 10.4 100 20.9 12.2 171
Thumb Divide 7980 7.6 7.1 107 13.6 9.8 139
Two Ocean Plateau 9240 19.1 14.2 135 20.3 14.1 144
White Mill 8700 12.3 11.4 108 15.9 12.6 126
Wolverine 7650 7.7 5.5 140 11.4 6.8 168
----- -----
Basin Index (%) 113 138
WIND RIVER
Burroughs Creek 8750 9.5 -M * 12.0 -M *
Castle Creek 8400 5.6 -M * 7.8 -M *
Cold Springs 9630 5.0 3.6 139 7.6 5.3 143
Deer Park 9700 11.5 7.0 164 15.4 10.0 154
Hobbs Park 10100 9.5 7.1 134 10.0 6.7 149
Kirwin 9550 7.8 4.7 166 10.7 6.1 175
Little Warm 9370 5.3 5.0 106 10.2 6.7 152
Owl Creek 8975 3.1 2.8 111 4.5 3.1 145
South Pass 9040 10.6 7.1 149 10.5 9.1 115
St. Lawrence Alt 8620 2.6 3.3 79 6.4 4.6 139
Togwotee Pass 9580 15.4 12.2 126 19.1 12.9 148
Townsend Creek 8700 4.9 4.2 117 7.8 6.2 126
----- -----
Basin Index (%) 133 145
BIGHORN BASIN
Bald Mtn. 9380 10.7 9.4 114 9.7 8.7 111
Bear Trap Meadow 8200 2.8 2.7 104 4.5 4.4 102
Bone Springs Div 9350 8.0 7.9 101 8.6 7.8 110
Grave Springs 8550 3.2 3.9 82 4.7 5.5 85
Kirwin 9550 7.8 4.7 166 10.7 6.1 175
Marquette 8760 3.9 -M * 7.5 -M *
Middle Powder 7760 4.0 5.4 74 5.0 6.4 78
Owl Creek 8975 3.1 2.8 111 4.5 3.1 145
Powder River Pass 9480 2.9 5.4 54 6.1 6.6 92
Shell Creek 9580 8.9 7.5 119 7.4 7.2 103
Timber Creek 7950 3.2 2.3 139 4.5 4.1 110
----- -----
Basin Index (%) 105 110
SHOSHONE RIVER
Blackwater 9780 16.4 11.7 140 20.3 10.9 186
Evening Star 9200 15.4 12.8 120 21.6 14.7 147
Marquette 8760 3.9 -M * 7.5 -M *
Sylvan Road 7120 7.5 6.0 125 17.4 9.9 176
Younts Peak 8350 9.3 7.5 124 13.9 8.6 162
----- -----
Basin Index (%) 128 166
POWDER RIVER
Bear Trap Meadow 8200 2.8 2.7 104 4.5 4.4 102
Cloud Peak Reservoir 9860 6.0 6.7 90 8.1 6.7 121
Grave Springs 8550 3.2 3.9 82 4.7 5.5 85
Hansen Sawmill 8360 3.9 3.3 118 5.7 4.3 133
Middle Powder 7760 4.0 5.4 74 5.0 6.4 78
Powder River Pass 9480 2.9 5.4 54 6.1 6.6 92
Soldier Park 8720 6.7 -M * 6.2 -M *
----- -----
Basin Index (%) 83 101
TONGUE RIVER
Big Goose 7990 4.7 4.0 118 5.7 5.6 102
Bone Springs Div 9350 8.0 7.9 101 8.6 7.8 110
Burgess Junction 7880 4.5 5.1 88 6.3 6.3 100
Dome Lake 8880 5.5 5.7 96 7.2 7.2 100
Little Goose 8870 5.0 -M * 7.2 -M *
Sucker Creek 8880 5.4 5.8 93 6.3 7.2 88
Tie Creek 6870 3.3 2.3 143 6.3 6.0 105
----- -----
Basin Index (%) 102 101
BELLE FOURCHE
Cole Canyon 5910 3.0 2.4 125 4.1 4.9 84
----- -----
Basin Index (%) 125 84
CHEYENNE RIVER BASIN
Blind Park 6890 3.5 3.8 92 4.6 6.5 71
North Rapid Creek 6130 3.7 3.4 109 4.0 5.4 74
----- -----
Basin Index (%) 100 72
UPPER N. PLATTE
Arapaho Ridge 10960 14.6 10.6 138 15.8 12.1 131
Blackhall Mtn 9820 17.1 -M * 18.9 -M *
Columbine 9160 14.2 10.6 134 16.6 12.9 129
Divide Peak 8880 9.0 9.6 94 11.6 11.3 103
Joe Wright 10120 10.7 10.4 103 16.3 13.3 123
Laprele Creek 8375 5.5 4.4 125 5.4 6.4 84
Med Bow 10500 20.2 -M * 19.9 -M *
North French Creek 10130 12.8 12.9 99 14.6 13.4 109
Never Summer 10280 -M 10.0 * -M -M *
Old Battle 10000 16.3 14.6 112 18.0 18.1 99
Rawah 9020 7.5 5.1 147 10.3 8.0 129
Sage Creek Basin 7850 7.5 6.6 114 8.0 8.2 98
Sand Lake 10050 14.4 13.3 108 14.0 12.3 114
South Brush Creek 8440 5.7 5.5 104 7.1 7.9 90
Tower 10500 20.6 20.1 102 23.7 20.4 116
Webber Springs 9250 13.0 11.0 118 16.5 13.7 120
Willow Creek Pass 9540 9.3 6.0 155 10.4 7.0 149
Zirkel 9340 18.9 12.8 148 21.7 15.6 139
----- -----
Basin Index (%) 117 116
SWEETWATER
Deer Park 9700 11.5 7.0 164 15.4 10.0 154
Larsen Creek 9000 8.9 5.5 162 12.7 -M *
South Pass 9040 10.6 7.1 149 10.5 9.1 115
----- -----
Basin Index (%) 158 136
LOWER N. PLATTE
Casper Mtn. 7900 5.6 6.5 86 6.0 7.9 76
Laprele Creek 8375 5.5 4.4 125 5.4 6.4 84
Reno Hill 8400 -M 6.3 * -M 7.7 *
Windy Peak 7900 4.1 3.2 128 5.2 5.5 95
----- -----
Basin Index (%) 108 84
LARAMIE RIVER
Brooklyn Lake 10240 11.9 9.4 127 11.2 10.2 110
Cinnabar Park 9574 10.1 10.7 94 12.9 13.3 97
Crow Creek 8330 3.8 4.8 79 5.4 5.9 92
Deadman Hill 10220 10.5 7.7 136 10.5 8.5 124
Rawah 9020 7.5 5.1 147 10.3 8.0 129
Roach 9700 8.2 7.7 106 9.9 9.8 101
----- -----
Basin Index (%) 115 108
S. PLATTE
Black Mountain 8920 5.6 -M * 6.9 -M *
Crow Creek 8330 3.8 4.8 79 5.4 5.9 92
Deadman Hill 10220 10.5 7.7 136 10.5 8.5 124
----- -----
Basin Index (%) 114 110
LITTLE SNAKE RIVER
Battle Mountain 7440 6.8 4.9 139 9.6 7.9 122
Divide Peak 8880 9.0 9.6 94 11.6 11.3 103
Elk River 8700 11.4 8.2 139 12.2 10.2 120
Little Snake River 8915 15.7 10.8 145 21.0 16.5 127
Old Battle 10000 16.3 14.6 112 18.0 18.1 99
Sage Creek Basin 7850 7.5 6.6 114 8.0 8.2 98
Sandstone RS 8150 7.8 5.6 139 8.2 9.6 85
Whiskey Park 8950 14.6 10.9 134 17.6 13.7 128
----- -----
Basin Index (%) 125 111
UPPER GREEN RIVER
Big Sandy Opening 9080 10.2 6.8 150 12.9 7.0 184
Blind Bull Sum 8650 16.2 10.8 150 15.7 10.3 152
East Rim Divide 7930 8.4 5.0 168 11.0 6.2 177
Elkhart Park G.S. 9400 7.3 5.9 124 12.8 7.0 183
Gros Ventre Summit 8750 7.5 6.9 109 11.7 6.7 175
Gunsight Pass 9820 8.2 6.9 119 12.5 7.2 174
Kendall R.S. 7740 9.2 5.6 164 13.6 7.3 186
Loomis Park 8240 11.4 7.1 161 16.5 9.1 181
New Fork Lake 8340 7.6 5.1 149 8.1 5.8 140
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 8.3 6.0 138 13.3 7.4 180
Spring Creek Divide 9000 14.8 11.0 135 19.9 12.3 162
Triple Peak 8500 16.5 9.7 170 21.3 12.5 170
----- -----
Basin Index (%) 145 171
LOWER GREEN RIVER
Blacks Fork Jct 8870 6.3 -M * 8.0 -M *
Buck Pasture 9700 9.1 -M * 12.1 -M *
EF Blacks Fork GS 9360 8.7 -M * 6.6 -M *
Hams Fork 7840 7.2 5.2 138 10.9 5.8 188
Hewinta 9519 6.4 4.3 149 8.7 7.1 123
Hickerson Park 9145 5.3 3.1 171 5.7 5.3 108
Hole-in-Rock 9150 4.2 3.2 131 6.0 5.0 120
Indian Creek 9425 14.6 11.1 132 16.6 11.1 150
Kelley R.S. 8180 10.2 6.9 148 15.8 9.4 168
Spirit Lk 10235 7.6 -M * 9.4 -M *
Steel Creek Park 10200 8.8 6.6 133 10.5 8.2 128
----- -----
Basin Index (%) 140 143
UPPER BEAR RIVER
Bear River RS 8777 6.4 -M * 8.4 -M *
Bug Lake 7950 11.7 7.2 162 15.0 10.0 150
Burts Miller Ranch 8000 3.4 -M * 4.5 -M *
Chalk Creek #1 8993 13.8 10.8 128 -M 12.8 *
Hayden Fork 9212 10.6 6.5 163 15.0 10.6 142
Kelley R.S. 8180 10.2 6.9 148 15.8 9.4 168
Lily Lake 9156 7.5 5.7 132 9.7 8.8 110
Monte Cristo 8960 13.3 12.1 110 16.2 13.2 123
Salt River Summit 7760 7.2 5.5 131 13.2 8.5 155
----- -----
Basin Index (%) 136 140
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.