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 SUNDAY: DECEMBER 4 , 2016
------------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
------------------------------------------------------------------------------
WYOMING
SNAKE RIVER
Base Camp 7030 2.0 4.3 47 9.4 6.5 145
Black Bear 8170 5.5 9.5 58 15.4 11.5 134
Blind Bull Sum 8650 4.0 5.6 71 6.9 6.2 111
Cottonwood Creek 7670 3.5 4.9 71 10.5 7.3 144
East Rim Divide 7930 1.1 2.1 52 4.6 3.6 128
Grand Targhee 9260 14.8 10.1 147 15.9 10.2 156
Granite Creek 6770 1.5 2.8 54 8.0 5.8 138
Grassy Lake 7265 3.3 6.8 49 15.2 10.6 143
Gros Ventre Summit 8750 1.7 4.1 41 6.3 4.3 147
Gunsight Pass 9820 1.8 3.4 53 6.5 4.3 151
Lewis Lake Divide 7850 1.5 7.9 19 13.1 10.8 121
Phillips Bench 8200 2.2 6.2 35 11.7 8.0 146
Salt River Summit 7760 1.0 2.2 45 6.7 4.7 143
Snake River Station 6920 2.0 3.4 59 10.5 7.1 148
Spring Creek Divide 9000 3.9 5.5 71 9.6 7.0 137
Thumb Divide 7980 1.4 3.4 41 7.9 5.8 136
Togwotee Pass 9580 5.4 7.7 70 9.0 7.8 115
Two Ocean Plateau 9240 8.4 9.0 93 11.0 8.7 126
Willow Creek 8380 3.5 6.2 56 14.2 10.2 139
Younts Peak 8350 2.1 4.5 47 6.0 5.4 111
----- -----
Basin Index (%) 64 136
MADISON-GALLATIN
Black Bear 8170 5.5 9.5 58 15.4 11.5 134
Canyon 7870 2.0 3.1 65 7.8 5.2 150
Madison Plateau 7750 2.7 5.6 48 13.1 7.9 166
West Yellowstone 6700 1.3 2.2 59 8.6 4.6 187
Whiskey Creek 6800 1.3 3.6 36 8.7 6.5 134
----- -----
Basin Index (%) 53 150
YELLOWSTONE
Beartooth Lake 9360 4.5 6.5 69 5.2 6.0 87
Burnt Mtn 5880 1.3 1.3 100 4.9 5.4 91
Canyon 7870 2.0 3.1 65 7.8 5.2 150
Cole Creek 7850 2.7 4.5 60 3.1 5.2 60
Evening Star 9200 5.4 7.6 71 12.0 9.0 133
Fisher Creek 9100 6.3 9.2 68 11.9 9.9 120
Northeast Entrance 7350 1.1 1.9 58 6.6 4.3 153
Parker Peak 9400 6.6 6.5 102 9.7 6.0 162
Sylvan Lake 8420 4.1 5.6 73 14.0 7.8 179
Thumb Divide 7980 1.4 3.4 41 7.9 5.8 136
Two Ocean Plateau 9240 8.4 9.0 93 11.0 8.7 126
White Mill 8700 4.1 6.5 63 8.1 7.6 107
Wolverine 7650 2.0 2.4 83 6.5 4.4 148
----- -----
Basin Index (%) 74 127
WIND RIVER
Burroughs Creek 8750 1.1 -M * 3.8 -M *
Castle Creek 8400 .4 -M * 2.7 -M *
Cold Springs 9630 1.3 2.5 52 3.6 3.8 95
Deer Park 9700 1.1 4.3 26 4.5 5.9 76
Hobbs Park 10100 3.1 4.7 66 4.7 4.6 102
Kirwin 9550 1.8 3.5 51 4.3 4.2 102
Little Warm 9370 1.0 3.1 32 5.4 4.5 120
Owl Creek 8975 1.1 1.7 65 2.5 2.2 114
South Pass 9040 .8 4.1 20 2.5 5.6 45
St. Lawrence Alt 8620 .6 2.2 27 3.7 3.3 112
Togwotee Pass 9580 5.4 7.7 70 9.0 7.8 115
Townsend Creek 8700 1.2 2.6 46 4.1 4.4 93
----- -----
Basin Index (%) 48 96
BIGHORN BASIN
Bald Mtn. 9380 7.0 6.0 117 5.7 5.5 104
Bear Trap Meadow 8200 .7 1.6 44 2.5 3.3 76
Bone Springs Div 9350 3.9 5.3 74 5.3 5.1 104
Grave Springs 8550 1.4 2.0 70 2.8 3.8 74
Kirwin 9550 1.8 3.5 51 4.3 4.2 102
Marquette 8760 1.9 -M * 4.1 -M *
Middle Powder 7760 1.5 3.2 47 2.2 4.6 48
Owl Creek 8975 1.1 1.7 65 2.5 2.2 114
Powder River Pass 9480 .7 3.2 22 3.3 4.3 77
Shell Creek 9580 5.0 5.1 98 4.1 4.8 85
Timber Creek 7950 1.5 1.7 88 3.0 3.3 91
----- -----
Basin Index (%) 74 87
SHOSHONE RIVER
Blackwater 9780 7.3 7.3 100 10.8 7.0 154
Evening Star 9200 5.4 7.6 71 12.0 9.0 133
Marquette 8760 1.9 -M * 4.1 -M *
Sylvan Road 7120 1.7 3.0 57 10.5 6.3 167
Younts Peak 8350 2.1 4.5 47 6.0 5.4 111
----- -----
Basin Index (%) 74 142
POWDER RIVER
Bear Trap Meadow 8200 .7 1.6 44 2.5 3.3 76
Cloud Peak Reservoir 9860 1.4 4.0 35 3.8 4.9 78
Grave Springs 8550 1.4 2.0 70 2.8 3.8 74
Hansen Sawmill 8360 1.0 1.7 59 2.6 3.2 81
Middle Powder 7760 1.5 3.2 47 2.2 4.6 48
Powder River Pass 9480 .7 3.2 22 3.3 4.3 77
Soldier Park 8720 .8 -M * 3.2 -M *
----- -----
Basin Index (%) 43 71
TONGUE RIVER
Big Goose 7990 1.5 2.6 58 2.8 4.1 68
Bone Springs Div 9350 3.9 5.3 74 5.3 5.1 104
Burgess Junction 7880 1.8 3.3 55 3.4 4.4 77
Dome Lake 8880 2.8 3.9 72 4.0 5.1 78
Little Goose 8870 1.6 -M * 3.7 -M *
Sucker Creek 8880 2.7 3.4 79 3.2 4.9 65
Tie Creek 6870 1.6 .9 178 4.4 4.3 102
----- -----
Basin Index (%) 74 83
BELLE FOURCHE
Cole Canyon 5910 1.3 .8 162 2.3 3.7 62
----- -----
Basin Index (%) 162 62
CHEYENNE RIVER BASIN
Blind Park 6890 2.5 1.8 139 3.6 4.5 80
North Rapid Creek 6130 2.3 1.6 144 2.5 3.8 66
----- -----
Basin Index (%) 141 73
UPPER N. PLATTE
Arapaho Ridge 10960 4.3 5.9 73 6.5 7.3 89
Blackhall Mtn 9820 5.1 -M * 7.6 -M *
Columbine 9160 3.3 4.9 67 5.8 7.4 78
Divide Peak 8880 3.3 4.9 67 5.6 7.1 79
Joe Wright 10120 2.7 6.3 43 6.7 8.4 80
Laprele Creek 8375 1.4 2.3 61 1.9 4.3 44
Med Bow 10500 8.4 -M * 9.4 -M *
North French Creek 10130 4.0 7.5 53 6.2 8.2 76
Never Summer 10280 3.3 5.3 62 5.0 -M *
Old Battle 10000 4.7 8.3 57 6.3 10.6 59
Rawah 9020 2.4 2.8 86 4.7 5.2 90
Sage Creek Basin 7850 2.3 2.5 92 3.8 4.8 79
Sand Lake 10050 5.1 7.6 67 5.4 7.7 70
South Brush Creek 8440 1.3 3.0 43 3.0 5.1 59
Tower 10500 5.2 12.0 43 7.4 12.2 61
Webber Springs 9250 2.7 5.4 50 6.4 8.1 79
Willow Creek Pass 9540 2.7 3.8 71 3.9 4.7 83
Zirkel 9340 -M 4.9 * 7.1 8.8 81
----- -----
Basin Index (%) 59 73
SWEETWATER
Deer Park 9700 1.1 4.3 26 4.5 5.9 76
Larsen Creek 9000 .9 2.7 33 5.3 -M *
South Pass 9040 .8 4.1 20 2.5 5.6 45
----- -----
Basin Index (%) 25 61
LOWER N. PLATTE
Casper Mtn. 7900 1.9 3.7 51 2.8 5.6 50
Laprele Creek 8375 1.4 2.3 61 1.9 4.3 44
Reno Hill 8400 2.1 3.9 54 2.7 5.2 52
Windy Peak 7900 .9 1.8 50 1.6 3.8 42
----- -----
Basin Index (%) 54 48
LARAMIE RIVER
Brooklyn Lake 10240 2.3 4.5 51 3.5 6.1 57
Cinnabar Park 9574 2.8 5.6 50 5.3 7.2 74
Crow Creek 8330 1.2 2.3 52 2.5 3.7 68
Deadman Hill 10220 3.8 5.0 76 4.6 5.5 84
Rawah 9020 2.4 2.8 86 4.7 5.2 90
Roach 9700 2.1 4.3 49 3.6 6.0 60
----- -----
Basin Index (%) 60 72
S. PLATTE
Black Mountain 8920 1.8 -M * 3.4 -M *
Crow Creek 8330 1.2 2.3 52 2.5 3.7 68
Deadman Hill 10220 3.8 5.0 76 4.6 5.5 84
----- -----
Basin Index (%) 68 77
LITTLE SNAKE RIVER
Battle Mountain 7440 2.0 1.7 118 4.5 4.8 94
Divide Peak 8880 3.3 4.9 67 5.6 7.1 79
Elk River 8700 3.0 3.3 91 4.9 6.0 82
Little Snake River 8915 3.7 4.0 92 8.2 9.5 86
Old Battle 10000 4.7 8.3 57 6.3 10.6 59
Sage Creek Basin 7850 2.3 2.5 92 3.8 4.8 79
Sandstone RS 8150 2.3 2.3 100 2.7 5.7 47
Whiskey Park 8950 3.5 5.2 67 6.9 7.8 88
----- -----
Basin Index (%) 77 76
UPPER GREEN RIVER
Big Sandy Opening 9080 3.0 3.7 81 6.0 4.2 143
Blind Bull Sum 8650 4.0 5.6 71 6.9 6.2 111
East Rim Divide 7930 1.1 2.1 52 4.6 3.6 128
Elkhart Park G.S. 9400 1.2 3.6 33 6.5 4.4 148
Gros Ventre Summit 8750 1.7 4.1 41 6.3 4.3 147
Gunsight Pass 9820 1.8 3.4 53 6.5 4.3 151
Kendall R.S. 7740 1.4 2.7 52 5.7 4.2 136
Loomis Park 8240 1.3 3.4 38 6.5 5.2 125
New Fork Lake 8340 1.7 2.4 71 3.3 3.5 94
Pocket Creek 9360 5.0 -M * 7.2 -M *
Snider Basin 8060 1.0 2.9 34 6.6 4.2 157
Spring Creek Divide 9000 3.9 5.5 71 9.6 7.0 137
Triple Peak 8500 4.8 5.2 92 9.7 7.3 133
----- -----
Basin Index (%) 60 134
LOWER GREEN RIVER
Blacks Fork Jct 8870 1.7 -M * 3.3 -M *
Buck Pasture 9700 2.8 -M * 5.5 -M *
EF Blacks Fork GS 9360 1.4 -M * 4.0 -M *
Hams Fork 7840 .7 2.5 28 5.2 3.5 149
Hewinta 9519 1.1 2.0 55 3.7 4.8 77
Hickerson Park 9145 2.3 1.6 144 2.7 3.9 69
Hole-in-Rock 9150 1.0 1.7 59 2.9 3.7 78
Indian Creek 9425 3.5 6.2 56 7.9 6.3 125
Kelley R.S. 8180 2.0 3.3 61 7.6 5.3 143
Spirit Lk 10235 3.0 -M * 5.2 -M *
Steel Creek Park 10200 2.9 4.1 71 4.9 5.5 89
----- -----
Basin Index (%) 63 106
UPPER BEAR RIVER
Bear River RS 8777 1.7 -M * 3.7 -M *
Bug Lake 7950 2.9 3.7 78 6.1 5.9 103
Burts Miller Ranch 8000 .8 -M * 2.1 -M *
Chalk Creek #1 8993 4.2 5.9 71 6.6 8.0 82
Hayden Fork 9212 2.7 3.1 87 6.0 6.5 92
Kelley R.S. 8180 2.0 3.3 61 7.6 5.3 143
Lily Lake 9156 1.6 3.1 52 4.1 5.7 72
Monte Cristo 8960 3.2 6.1 52 7.2 7.6 95
Salt River Summit 7760 1.0 2.2 45 6.7 4.7 143
----- -----
Basin Index (%) 64 101
-----------------------------------------------------------------------------
-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.