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: NOVEMBER 23 , 2016
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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 .5 2.5 20 7.9 4.9 161
Black Bear 8170 3.4 7.4 46 13.4 8.7 154
Blind Bull Sum 8650 2.7 4.0 68 6.0 4.5 133
Cottonwood Creek 7670 1.8 3.1 58 8.9 5.6 159
East Rim Divide 7930 .6 1.5 40 4.3 2.8 154
Grand Targhee 9260 10.8 9.1 119 13.0 9.2 141
Granite Creek 6770 .5 1.7 29 7.0 4.4 159
Grassy Lake 7265 .5 4.9 10 12.3 8.0 154
Gros Ventre Summit 8750 1.1 3.1 35 6.0 3.5 171
Gunsight Pass 9820 1.2 2.7 44 5.9 3.6 164
Lewis Lake Divide 7850 .1 5.5 2 11.2 8.0 140
Phillips Bench 8200 .4 4.1 10 9.9 5.9 168
Salt River Summit 7760 .3 1.4 21 6.1 3.6 169
Snake River Station 6920 .6 2.1 29 8.6 5.4 159
Spring Creek Divide 9000 2.2 4.0 55 8.0 5.3 151
Thumb Divide 7980 .8 2.4 33 7.2 4.6 157
Togwotee Pass 9580 4.0 5.7 70 7.5 6.0 125
Two Ocean Plateau 9240 6.9 7.3 95 9.7 6.7 145
Willow Creek 8380 1.2 4.2 29 11.8 7.8 151
Younts Peak 8350 1.5 3.4 44 5.1 4.3 119
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Basin Index (%) 51 151
MADISON-GALLATIN
Black Bear 8170 3.4 7.4 46 13.4 8.7 154
Canyon 7870 1.1 2.3 48 7.1 4.0 178
Madison Plateau 7750 1.7 4.0 42 11.9 5.9 202
West Yellowstone 6700 .8 1.4 57 7.9 3.5 226
Whiskey Creek 6800 .6 2.4 25 8.0 4.8 167
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Basin Index (%) 43 180
YELLOWSTONE
Beartooth Lake 9360 3.6 5.3 68 4.5 4.6 98
Burnt Mtn 5880 1.2 .9 133 4.7 4.7 100
Canyon 7870 1.1 2.3 48 7.1 4.0 178
Cole Creek 7850 2.3 3.4 68 3.1 4.5 69
Evening Star 9200 4.5 6.0 75 10.7 6.9 155
Fisher Creek 9100 5.1 7.3 70 10.5 7.6 138
Northeast Entrance 7350 .6 1.2 50 6.2 3.5 177
Parker Peak 9400 5.5 5.1 108 8.9 4.8 185
Sylvan Lake 8420 2.5 4.2 60 12.0 6.1 197
Thumb Divide 7980 .8 2.4 33 7.2 4.6 157
Two Ocean Plateau 9240 6.9 7.3 95 9.7 6.7 145
White Mill 8700 3.4 5.0 68 7.5 6.0 125
Wolverine 7650 1.1 1.3 85 5.6 3.4 165
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Basin Index (%) 75 145
WIND RIVER
Burroughs Creek 8750 .7 -M * 3.2 -M *
Castle Creek 8400 .3 -M * 2.3 -M *
Cold Springs 9630 1.3 1.9 68 3.4 3.2 106
Deer Park 9700 .7 3.5 20 4.3 4.9 88
Hobbs Park 10100 2.9 3.9 74 4.5 3.8 118
Kirwin 9550 1.6 3.0 53 4.1 3.4 121
Little Warm 9370 .9 2.4 38 5.0 3.6 139
Owl Creek 8975 .8 1.4 57 2.2 2.0 110
South Pass 9040 .8 3.2 25 2.3 4.5 51
St. Lawrence Alt 8620 .6 1.7 35 3.7 2.8 132
Togwotee Pass 9580 4.0 5.7 70 7.5 6.0 125
Townsend Creek 8700 1.0 2.0 50 3.8 3.6 106
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Basin Index (%) 51 108
BIGHORN BASIN
Bald Mtn. 9380 5.6 4.9 114 5.1 4.6 111
Bear Trap Meadow 8200 .4 1.2 33 2.3 2.8 82
Bone Springs Div 9350 3.2 4.5 71 4.9 4.3 114
Grave Springs 8550 .7 1.5 47 2.3 3.3 70
Kirwin 9550 1.6 3.0 53 4.1 3.4 121
Marquette 8760 1.8 -M * 4.0 -M *
Middle Powder 7760 .6 2.2 27 1.8 3.9 46
Owl Creek 8975 .8 1.4 57 2.2 2.0 110
Powder River Pass 9480 .3 2.4 12 3.0 3.5 86
Shell Creek 9580 4.5 4.3 105 3.8 4.0 95
Timber Creek 7950 1.4 1.4 100 3.0 3.0 100
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Basin Index (%) 71 93
SHOSHONE RIVER
Blackwater 9780 6.4 5.8 110 9.8 5.5 178
Evening Star 9200 4.5 6.0 75 10.7 6.9 155
Marquette 8760 1.8 -M * 4.0 -M *
Sylvan Road 7120 .6 1.9 32 9.0 4.8 188
Younts Peak 8350 1.5 3.4 44 5.1 4.3 119
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Basin Index (%) 76 161
POWDER RIVER
Bear Trap Meadow 8200 .4 1.2 33 2.3 2.8 82
Cloud Peak Reservoir 9860 1.0 3.5 29 3.2 4.2 76
Grave Springs 8550 .7 1.5 47 2.3 3.3 70
Hansen Sawmill 8360 .8 1.3 62 2.5 2.8 89
Middle Powder 7760 .6 2.2 27 1.8 3.9 46
Powder River Pass 9480 .3 2.4 12 3.0 3.5 86
Soldier Park 8720 .8 -M * 3.0 -M *
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Basin Index (%) 31 74
TONGUE RIVER
Big Goose 7990 1.2 2.0 60 2.5 3.6 69
Bone Springs Div 9350 3.2 4.5 71 4.9 4.3 114
Burgess Junction 7880 1.0 2.6 38 2.7 3.7 73
Dome Lake 8880 2.6 3.1 84 3.7 4.3 86
Little Goose 8870 1.3 -M * 3.4 -M *
Sucker Creek 8880 1.7 2.9 59 2.3 4.2 55
Tie Creek 6870 1.2 .6 200 3.9 3.8 103
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Basin Index (%) 69 84
BELLE FOURCHE
Cole Canyon 5910 .1 .6 17 1.4 3.2 44
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Basin Index (%) 17 44
CHEYENNE RIVER BASIN
Blind Park 6890 .0 1.4 0 1.7 4.0 42
North Rapid Creek 6130 .1 1.1 9 1.1 3.4 32
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Basin Index (%) 4 38
UPPER N. PLATTE
Arapaho Ridge 10960 2.1 5.0 42 4.5 5.9 76
Blackhall Mtn 9820 2.1 -M * 4.5 -M *
Columbine 9160 .7 3.7 19 3.6 5.6 64
Divide Peak 8880 .9 3.7 24 3.3 5.7 58
Joe Wright 10120 1.9 5.0 38 5.1 6.8 75
Laprele Creek 8375 .5 2.1 24 .8 3.6 22
Med Bow 10500 3.8 -M * 5.2 -M *
North French Creek 10130 1.1 5.3 21 3.6 6.4 56
Never Summer 10280 2.1 4.3 49 3.9 -M *
Old Battle 10000 1.5 6.2 24 2.8 8.3 34
Rawah 9020 1.6 1.9 84 3.7 4.2 88
Sage Creek Basin 7850 1.0 1.8 56 2.4 3.8 63
Sand Lake 10050 2.3 5.8 40 2.2 6.2 35
South Brush Creek 8440 .1 2.0 5 1.6 4.1 39
Tower 10500 -M 9.4 * 3.1 9.5 33
Webber Springs 9250 -M 3.9 * 3.6 6.4 56
Willow Creek Pass 9540 1.8 3.0 60 3.0 3.8 79
Zirkel 9340 -M 3.5 * 4.7 7.1 66
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Basin Index (%) 35 55
SWEETWATER
Deer Park 9700 .7 3.5 20 4.3 4.9 88
Larsen Creek 9000 .6 1.8 33 5.1 -M *
South Pass 9040 .8 3.2 25 2.3 4.5 51
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Basin Index (%) 25 70
LOWER N. PLATTE
Casper Mtn. 7900 1.5 3.0 50 1.4 4.6 30
Laprele Creek 8375 .5 2.1 24 .8 3.6 22
Reno Hill 8400 1.3 2.8 46 1.8 4.3 42
Windy Peak 7900 .7 1.5 47 1.2 3.1 39
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Basin Index (%) 43 33
LARAMIE RIVER
Brooklyn Lake 10240 .3 4.0 8 -M 4.9 *
Cinnabar Park 9574 -M 4.1 * 2.6 5.5 47
Crow Creek 8330 .7 1.3 54 2.0 3.1 65
Deadman Hill 10220 2.7 4.0 68 3.6 4.6 78
Rawah 9020 1.6 1.9 84 3.7 4.2 88
Roach 9700 1.1 3.3 33 2.5 4.8 52
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Basin Index (%) 44 65
S. PLATTE
Black Mountain 8920 1.3 -M * 2.9 -M *
Crow Creek 8330 .7 1.3 54 2.0 3.1 65
Deadman Hill 10220 2.7 4.0 68 3.6 4.6 78
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Basin Index (%) 64 73
LITTLE SNAKE RIVER
Battle Mountain 7440 .3 1.0 30* 2.4 3.9 62
Divide Peak 8880 .9 3.7 24 3.3 5.7 58
Elk River 8700 1.0 2.2 45 3.2 4.8 67
Little Snake River 8915 .0 3.1 0 4.5 7.2 62
Old Battle 10000 1.5 6.2 24 2.8 8.3 34
Sage Creek Basin 7850 1.0 1.8 56 2.4 3.8 63
Sandstone RS 8150 .3 1.3 23* 1.1 4.5 24
Whiskey Park 8950 -M 3.9 * 3.7 6.1 61
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Basin Index (%) 26 53
UPPER GREEN RIVER
Big Sandy Opening 9080 2.4 3.2 75 5.4 3.4 159
Blind Bull Sum 8650 2.7 4.0 68 6.0 4.5 133
East Rim Divide 7930 .6 1.5 40 4.3 2.8 154
Elkhart Park G.S. 9400 .7 2.7 26 6.0 3.5 171
Gros Ventre Summit 8750 1.1 3.1 35 6.0 3.5 171
Gunsight Pass 9820 1.2 2.7 44 5.9 3.6 164
Kendall R.S. 7740 1.0 2.0 50 5.4 3.4 159
Loomis Park 8240 .6 2.3 26 5.9 3.9 151
New Fork Lake 8340 .9 1.8 50 2.6 2.9 90
Pocket Creek 9360 3.8 -M * 6.5 -M *
Snider Basin 8060 .1 2.0 5 5.4 3.2 169
Spring Creek Divide 9000 2.2 4.0 55 8.0 5.3 151
Triple Peak 8500 3.2 4.1 78 8.2 5.5 149
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Basin Index (%) 50 152
LOWER GREEN RIVER
Blacks Fork Jct 8870 .7 -M * 2.4 -M *
Buck Pasture 9700 1.8 -M * 3.9 -M *
EF Blacks Fork GS 9360 .7 -M * 3.0 -M *
Hams Fork 7840 .0 1.7 0 4.6 2.8 164
Hewinta 9519 .0 1.4 0 2.5 3.9 64
Hickerson Park 9145 1.8 1.3 138 2.3 3.4 68
Hole-in-Rock 9150 .5 1.3 38 2.4 3.2 75
Indian Creek 9425 2.1 4.8 44 6.7 4.8 140
Kelley R.S. 8180 .9 2.4 38 6.1 4.1 149
Spirit Lk 10235 1.9 -M * 4.0 -M *
Steel Creek Park 10200 1.7 3.3 52 3.5 4.4 80
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Basin Index (%) 43 106
UPPER BEAR RIVER
Bear River RS 8777 .7 -M * 2.8 -M *
Bug Lake 7950 2.1 2.7 78 5.3 4.6 115
Burts Miller Ranch 8000 .2 -M * 1.7 -M *
Chalk Creek #1 8993 2.5 4.0 62 4.8 6.3 76
Hayden Fork 9212 1.0 2.3 43 4.1 5.2 79
Kelley R.S. 8180 .9 2.4 38 6.1 4.1 149
Lily Lake 9156 .6 2.3 26 2.9 4.6 63
Monte Cristo 8960 1.3 3.8 34 5.5 5.9 93
Salt River Summit 7760 .3 1.4 21 6.1 3.6 169
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Basin Index (%) 46 101
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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.
