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 FRIDAY: OCTOBER 14 , 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 .1 .0 * 2.8 .8 350
Black Bear 8170 .7 .8 88* 3.2 1.6 200
Blind Bull Sum 8650 .8 .1 800* 1.0 .8 125
Cottonwood Creek 7670 .3 .0 * 2.4 1.0 240
East Rim Divide 7930 .0 .0 * 1.2 .6 200
Grand Targhee 9260 4.8 1.3 369* -M 2.6 *
Granite Creek 6770 .0 .0 * 2.0 .7 286
Grassy Lake 7265 .3 .0 * 4.1 1.4 293
Gros Ventre Summit 8750 .5 .5 100* 1.9 .7 271
Gunsight Pass 9820 .4 .0 * 2.4 1.0 240
Lewis Lake Divide 7850 .0 .0 * 2.6 1.3 200
Phillips Bench 8200 .5 .0 * 3.1 .9 344
Salt River Summit 7760 .0 .0 * 1.5 .7 214
Snake River Station 6920 .3 .0 * 2.7 1.1 245
Spring Creek Divide 9000 .4 .0 * 1.9 .8 238
Thumb Divide 7980 .3 .0 * 2.1 1.0 210
Togwotee Pass 9580 1.4 1.0 140* 2.7 1.0 270
Two Ocean Plateau 9240 2.3 1.2 192* -M 1.2 *
Willow Creek 8380 .0 .0 * 2.9 1.4 207
Younts Peak 8350 .4 .4 100* 1.0 1.0 100
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Basin Index (%) 255* 233
MADISON-GALLATIN
Black Bear 8170 .7 .8 88* 3.2 1.6 200
Canyon 7870 .0 .0 * 2.1 .9 233
Madison Plateau 7750 .0 .3 0* 2.4 1.2 200
West Yellowstone 6700 .0 .0 * 1.6 .9 178
Whiskey Creek 6800 .0 .0 * 1.9 1.0 190
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Basin Index (%) 64* 200
YELLOWSTONE
Beartooth Lake 9360 .6 1.0 60* 1.5 .9 167
Burnt Mtn 5880 .0 .0 * 2.0 2.2 91
Canyon 7870 .0 .0 * 2.1 .9 233
Cole Creek 7850 .7 1.0 70* 1.6 1.5 107
Evening Star 9200 1.6 .8 200* 4.0 1.4 286
Fisher Creek 9100 .0 1.0 0* 2.2 1.4 157
Northeast Entrance 7350 .0 .0 * 1.6 .8 200
Parker Peak 9400 1.2 1.0 120* 2.9 1.3 223
Sylvan Lake 8420 1.6 .4 400* 4.4 1.4 314
Thumb Divide 7980 .3 .0 * 2.1 1.0 210
Two Ocean Plateau 9240 2.3 1.2 192* -M 1.2 *
White Mill 8700 .0 .8 0* 1.5 1.2 125
Wolverine 7650 .0 .0 * 1.6 .9 178
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Basin Index (%) 115* 185
WIND RIVER
Burroughs Creek 8750 .0 -M * 1.4 -M *
Castle Creek 8400 .0 -M * 1.2 -M *
Cold Springs 9630 .0 .0 * 1.1 .8 138
Deer Park 9700 .0 .6 0* 1.2 1.4 86
Hobbs Park 10100 .2 .6 33* .9 .9 100
Kirwin 9550 .3 .6 50* 1.1 .9 122
Little Warm 9370 .4 .2 200* 1.6 .8 200
Owl Creek 8975 .0 .0 * .9 .7 129
South Pass 9040 .1 .0 * 1.1 1.0 110
St. Lawrence Alt 8620 .0 .0 * .5 .8 62
Togwotee Pass 9580 1.4 1.0 140* 2.7 1.0 270
Townsend Creek 8700 .0 .0 * 1.4 1.0 140
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Basin Index (%) 80* 134
BIGHORN BASIN
Bald Mtn. 9380 2.0 1.5 133* 1.6 1.3 123
Bear Trap Meadow 8200 .0 .0 * 1.3 .8 162
Bone Springs Div 9350 .8 1.2 67* 1.7 1.3 131
Grave Springs 8550 .0 .0 * 1.5 1.1 136
Kirwin 9550 .3 .6 50* 1.1 .9 122
Marquette 8760 .0 -M * 1.4 -M *
Middle Powder 7760 1.7 .3 567* 1.3 1.1 118
Owl Creek 8975 .0 .0 * .9 .7 129
Powder River Pass 9480 .9 .2 450* 1.9 1.0 190
Shell Creek 9580 2.3 1.4 164* 2.2 1.2 183
Timber Creek 7950 .0 .0 * .9 1.0 90
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Basin Index (%) 154* 138
SHOSHONE RIVER
Blackwater 9780 2.4 1.1 218* 4.0 1.3 308
Evening Star 9200 1.6 .8 200* 4.0 1.4 286
Marquette 8760 .0 -M * 1.4 -M *
Sylvan Road 7120 .0 .0 * 3.3 1.0 330
Younts Peak 8350 .4 .4 100* 1.0 1.0 100
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Basin Index (%) 191* 262
POWDER RIVER
Bear Trap Meadow 8200 .0 .0 * 1.3 .8 162
Cloud Peak Reservoir 9860 .0 .4 0* 1.8 1.3 138
Grave Springs 8550 .0 .0 * 1.5 1.1 136
Hansen Sawmill 8360 .2 .0 * .8 .9 89
Middle Powder 7760 1.7 .3 567* 1.3 1.1 118
Powder River Pass 9480 .9 .2 450* 1.9 1.0 190
Soldier Park 8720 .0 -M * 1.4 -M *
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Basin Index (%) 311* 139
TONGUE RIVER
Big Goose 7990 .0 .1 0* .6 1.3 46
Bone Springs Div 9350 .8 1.2 67* 1.7 1.3 131
Burgess Junction 7880 .0 .4 0* 1.3 1.2 108
Dome Lake 8880 .0 .6 0* 1.2 1.3 92
Little Goose 8870 .0 -M * 1.1 -M *
Sucker Creek 8880 .0 .4 0* 1.2 1.3 92
Tie Creek 6870 .0 .0 * 1.0 1.4 71
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Basin Index (%) 30* 90
BELLE FOURCHE
Cole Canyon 5910 .0 .0 * .8 1.2 67
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Basin Index (%) * 67
CHEYENNE RIVER BASIN
Blind Park 6890 .0 .0 * 1.3 1.1 118
North Rapid Creek 6130 .0 .0 * .7 1.0 70
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Basin Index (%) * 95
UPPER N. PLATTE
Arapaho Ridge 10960 1.2 .5 240* 1.8 1.2 150
Blackhall Mtn 9820 .3 -M * 1.4 -M *
Columbine 9160 .0 .0 * 2.0 1.2 167
Divide Peak 8880 .1 .0 * .3 1.4 21
Joe Wright 10120 .1 .4 25* 2.0 1.5 133
Laprele Creek 8375 .0 .0 * .3 .8 38
Med Bow 10500 1.1 -M * 1.7 -M *
North French Creek 10130 .0 .6 0* 1.0 1.4 71
Never Summer 10280 1.1 .5 220* 1.6 -M *
Old Battle 10000 1.0 .7 143* 1.0 1.8 56
Rawah 9020 .2 .0 * 1.6 1.0 160
Sage Creek Basin 7850 .1 .0 * .4 1.1 36
Sand Lake 10050 .9 .7 129* .2 1.4 14
South Brush Creek 8440 .1 .0 * .8 1.1 73
Tower 10500 .9 .9 100* 1.4 1.8 78
Webber Springs 9250 .0 .0 * 1.3 1.4 93
Willow Creek Pass 9540 .3 .0 * 1.2 .8 150
Zirkel 9340 .1 .0 * 1.7 1.9 89
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Basin Index (%) 142* 86
SWEETWATER
Deer Park 9700 .0 .6 0* 1.2 1.4 86
Larsen Creek 9000 .2 .0 * 2.0 -M *
South Pass 9040 .1 .0 * 1.1 1.0 110
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Basin Index (%) 50* 96
LOWER N. PLATTE
Casper Mtn. 7900 .0 .1 0* .6 1.1 55
Laprele Creek 8375 .0 .0 * .3 .8 38
Reno Hill 8400 .2 .0 * 1.0 1.0 100
Windy Peak 7900 .0 .0 * .2 .8 25
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Basin Index (%) 200* 57
LARAMIE RIVER
Brooklyn Lake 10240 .0 .0 * -M 1.0 *
Cinnabar Park 9574 .2 .0 * .7 1.2 58
Crow Creek 8330 -M .0 * .2 1.0 20
Deadman Hill 10220 .4 .4 100* .9 1.0 90
Rawah 9020 .2 .0 * 1.6 1.0 160
Roach 9700 .1 .0 * .7 1.0 70
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Basin Index (%) 225* 79
S. PLATTE
Black Mountain 8920 .1 -M * .3 -M *
Crow Creek 8330 -M .0 * .2 1.0 20
Deadman Hill 10220 .4 .4 100* .9 1.0 90
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Basin Index (%) 100* 55
LITTLE SNAKE RIVER
Battle Mountain 7440 .3 .0 * .9 .8 112
Divide Peak 8880 .1 .0 * .3 1.4 21
Elk River 8700 .2 .0 * 1.1 1.2 92
Little Snake River 8915 .2 .0 * 1.7 1.9 89
Old Battle 10000 1.0 .7 143* 1.0 1.8 56
Sage Creek Basin 7850 .1 .0 * .4 1.1 36
Sandstone RS 8150 1.0 .0 * .2 1.0 20
Whiskey Park 8950 .0 .0 * 1.3 1.3 100
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Basin Index (%) 414* 66
UPPER GREEN RIVER
Big Sandy Opening 9080 .9 .1 900* 2.0 .8 250
Blind Bull Sum 8650 .8 .1 800* 1.0 .8 125
East Rim Divide 7930 .0 .0 * 1.2 .6 200
Elkhart Park G.S. 9400 .9 .0 * 2.1 .8 262
Gros Ventre Summit 8750 .5 .5 100* 1.9 .7 271
Gunsight Pass 9820 .4 .0 * 2.4 1.0 240
Kendall R.S. 7740 .0 .0 * 1.4 .6 233
Loomis Park 8240 .1 .0 * 1.8 .8 225
New Fork Lake 8340 .1 .0 * .8 .6 133
Pocket Creek 9360 1.1 -M * 2.1 -M *
Snider Basin 8060 .3 .0 * 1.6 .5 320
Spring Creek Divide 9000 .4 .0 * 1.9 .8 238
Triple Peak 8500 .4 .0 * 2.1 .9 233
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Basin Index (%) 686* 227
LOWER GREEN RIVER
Blacks Fork Jct 8870 .0 -M * .4 -M *
Buck Pasture 9700 .1 -M * .7 -M *
EF Blacks Fork GS 9360 .0 -M * .9 -M *
Hams Fork 7840 .0 .0 * .8 .5 160
Hewinta 9519 .2 .0 * -M .9 *
Hickerson Park 9145 .5 .0 * .7 .8 88
Hole-in-Rock 9150 .0 .0 * .7 .8 88
Indian Creek 9425 .1 .5 20* 1.5 .9 167
Kelley R.S. 8180 .3 .0 * 1.3 .7 186
Spirit Lk 10235 .1 -M * 1.1 -M *
Steel Creek Park 10200 .3 .4 75* .8 1.1 73
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Basin Index (%) 156* 121
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * .3 -M *
Bug Lake 7950 .1 .0 * .3 1.0 30
Burts Miller Ranch 8000 .0 -M * .3 -M *
Chalk Creek #1 8993 .2 .0 * .9 1.3 69
Hayden Fork 9212 .0 .0 * .7 1.1 64
Kelley R.S. 8180 .3 .0 * 1.3 .7 186
Lily Lake 9156 .0 .0 * .3 1.1 27
Monte Cristo 8960 .2 .0 * .4 1.2 33
Salt River Summit 7760 .0 .0 * 1.5 .7 214
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Basin Index (%) * 76
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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.