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 SATURDAY: OCTOBER 15 , 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 * 3.0 .9 333
Black Bear 8170 .6 1.0 60* 3.9 1.8 217
Blind Bull Sum 8650 .8 .2 400* 1.6 1.0 160
Cottonwood Creek 7670 .2 .0 * 2.8 1.2 233
East Rim Divide 7930 .3 .0 * 1.4 .6 233
Grand Targhee 9260 5.4 1.5 360* -M 2.6 *
Granite Creek 6770 .1 .0 * 2.3 .8 288
Grassy Lake 7265 .2 .0 * 5.0 1.6 312
Gros Ventre Summit 8750 .2 .6 33* 2.0 .8 250
Gunsight Pass 9820 .5 .0 * 2.6 1.1 236
Lewis Lake Divide 7850 .1 .0 * 3.3 1.4 236
Phillips Bench 8200 .1 .0 * 3.5 1.1 318
Salt River Summit 7760 .1 .0 * 1.6 .8 200
Snake River Station 6920 .3 .0 * 3.1 1.2 258
Spring Creek Divide 9000 .3 .0 * 2.0 .9 222
Thumb Divide 7980 .3 .0 * 2.5 1.1 227
Togwotee Pass 9580 1.6 1.2 133* 3.0 1.2 250
Two Ocean Plateau 9240 2.8 1.3 215* -M 1.4 *
Willow Creek 8380 .0 .0 * 3.6 1.6 225
Younts Peak 8350 .2 .4 50* 1.2 1.0 120
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Basin Index (%) 229* 241
MADISON-GALLATIN
Black Bear 8170 .6 1.0 60* 3.9 1.8 217
Canyon 7870 .0 .0 * 2.3 1.0 230
Madison Plateau 7750 .0 .3 0* 3.4 1.3 262
West Yellowstone 6700 .1 .0 * -M 1.0 *
Whiskey Creek 6800 .2 .0 * 2.2 1.1 200
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Basin Index (%) 69* 227
YELLOWSTONE
Beartooth Lake 9360 .8 1.1 73* 1.5 1.0 150
Burnt Mtn 5880 .1 .0 * 1.9 2.3 83
Canyon 7870 .0 .0 * 2.3 1.0 230
Cole Creek 7850 .2 1.1 18* 1.8 1.6 112
Evening Star 9200 1.9 .9 211* 4.0 1.5 267
Fisher Creek 9100 .5 1.1 45* 2.9 1.6 181
Northeast Entrance 7350 .2 .0 * 2.0 .9 222
Parker Peak 9400 1.5 1.1 136* 3.1 1.4 221
Sylvan Lake 8420 1.4 .4 350* 5.0 1.6 312
Thumb Divide 7980 .3 .0 * 2.5 1.1 227
Two Ocean Plateau 9240 2.8 1.3 215* -M 1.4 *
White Mill 8700 .5 .9 56* 1.7 1.3 131
Wolverine 7650 .0 .0 * 1.9 .9 211
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Basin Index (%) 129* 189
WIND RIVER
Burroughs Creek 8750 .1 -M * 1.4 -M *
Castle Creek 8400 .1 -M * 1.1 -M *
Cold Springs 9630 .1 .0 * 1.0 .9 111
Deer Park 9700 .0 .6 0* 1.2 1.5 80
Hobbs Park 10100 .2 .6 33* .9 1.0 90
Kirwin 9550 .4 .6 67* 1.1 .9 122
Little Warm 9370 .3 .2 150* 1.6 .9 178
Owl Creek 8975 .0 .0 * .9 .7 129
South Pass 9040 .1 .0 * 1.2 1.0 120
St. Lawrence Alt 8620 .0 .0 * .6 .8 75
Togwotee Pass 9580 1.6 1.2 133* 3.0 1.2 250
Townsend Creek 8700 .1 .0 * 1.8 1.0 180
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Basin Index (%) 88* 134
BIGHORN BASIN
Bald Mtn. 9380 1.9 1.6 119* 1.6 1.4 114
Bear Trap Meadow 8200 .1 .0 * 1.4 .8 175
Bone Springs Div 9350 .7 1.3 54* 1.7 1.4 121
Grave Springs 8550 .1 .0 * 1.7 1.2 142
Kirwin 9550 .4 .6 67* 1.1 .9 122
Marquette 8760 .3 -M * 1.3 -M *
Middle Powder 7760 1.2 .3 400* 1.3 1.2 108
Owl Creek 8975 .0 .0 * .9 .7 129
Powder River Pass 9480 .6 .2 300* 1.9 1.1 173
Shell Creek 9580 2.2 1.5 147* 2.1 1.2 175
Timber Creek 7950 .1 .0 * .9 1.0 90
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Basin Index (%) 133* 134
SHOSHONE RIVER
Blackwater 9780 2.8 1.2 233* 4.3 1.4 307
Evening Star 9200 1.9 .9 211* 4.0 1.5 267
Marquette 8760 .3 -M * 1.3 -M *
Sylvan Road 7120 .1 .0 * 3.5 1.1 318
Younts Peak 8350 .2 .4 50* 1.2 1.0 120
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Basin Index (%) 200* 260
POWDER RIVER
Bear Trap Meadow 8200 .1 .0 * 1.4 .8 175
Cloud Peak Reservoir 9860 .1 .5 20* 1.2 1.4 86
Grave Springs 8550 .1 .0 * 1.7 1.2 142
Hansen Sawmill 8360 .1 .0 * .8 .9 89
Middle Powder 7760 1.2 .3 400* 1.3 1.2 108
Powder River Pass 9480 .6 .2 300* 1.9 1.1 173
Soldier Park 8720 .1 -M * 1.3 -M *
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Basin Index (%) 220* 126
TONGUE RIVER
Big Goose 7990 .2 .2 100* .8 1.4 57
Bone Springs Div 9350 .7 1.3 54* 1.7 1.4 121
Burgess Junction 7880 .0 .4 0* 1.7 1.2 142
Dome Lake 8880 .0 .7 0* 1.3 1.3 100
Little Goose 8870 .0 -M * 1.1 -M *
Sucker Creek 8880 .0 .5 0* 1.5 1.3 115
Tie Creek 6870 .1 .0 * .9 1.5 60
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Basin Index (%) 32* 98
BELLE FOURCHE
Cole Canyon 5910 .0 .0 * .7 1.2 58
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Basin Index (%) * 58
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 .7 171* 1.8 1.5 120
Blackhall Mtn 9820 .3 -M * 1.4 -M *
Columbine 9160 .2 .0 * 2.2 1.3 169
Divide Peak 8880 .1 .0 * .4 1.6 25
Joe Wright 10120 .1 .5 20* 2.0 1.6 125
Laprele Creek 8375 .0 .0 * .5 .9 56
Med Bow 10500 1.1 -M * 1.7 -M *
North French Creek 10130 .0 .6 0* 1.0 1.5 67
Never Summer 10280 1.1 .6 183* 1.6 -M *
Old Battle 10000 .6 .8 75* 1.1 2.0 55
Rawah 9020 .1 .0 * 1.6 1.2 133
Sage Creek Basin 7850 .1 .0 * .4 1.1 36
Sand Lake 10050 .9 .8 112* .7 1.5 47
South Brush Creek 8440 .2 .0 * .9 1.1 82
Tower 10500 .3 1.0 30* 1.7 2.0 85
Webber Springs 9250 .0 .0 * 1.3 1.5 87
Willow Creek Pass 9540 .1 .1 100* 1.2 .8 150
Zirkel 9340 .2 .0 * 1.8 2.1 86
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Basin Index (%) 102* 86
SWEETWATER
Deer Park 9700 .0 .6 0* 1.2 1.5 80
Larsen Creek 9000 .2 .0 * 2.0 -M *
South Pass 9040 .1 .0 * 1.2 1.0 120
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Basin Index (%) 50* 96
LOWER N. PLATTE
Casper Mtn. 7900 .3 .1 300* .9 1.2 75
Laprele Creek 8375 .0 .0 * .5 .9 56
Reno Hill 8400 .1 .0 * 1.2 1.1 109
Windy Peak 7900 .0 .0 * .2 .8 25
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Basin Index (%) 400* 70
LARAMIE RIVER
Brooklyn Lake 10240 .1 .0 * .6 1.0 60
Cinnabar Park 9574 .2 .0 * .6 1.3 46
Crow Creek 8330 .0 .0 * .4 1.1 36
Deadman Hill 10220 .2 .6 33* .9 1.1 82
Rawah 9020 .1 .0 * 1.6 1.2 133
Roach 9700 .1 .0 * .7 1.1 64
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Basin Index (%) 117* 71
S. PLATTE
Black Mountain 8920 .1 -M * .3 -M *
Crow Creek 8330 .0 .0 * .4 1.1 36
Deadman Hill 10220 .2 .6 33* .9 1.1 82
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Basin Index (%) 33* 59
LITTLE SNAKE RIVER
Battle Mountain 7440 .0 .0 * 1.0 .9 111
Divide Peak 8880 .1 .0 * .4 1.6 25
Elk River 8700 .2 .0 * 1.0 1.3 77
Little Snake River 8915 .3 .0 * 1.7 2.1 81
Old Battle 10000 .6 .8 75* 1.1 2.0 55
Sage Creek Basin 7850 .1 .0 * .4 1.1 36
Sandstone RS 8150 .0 .0 * .6 1.0 60
Whiskey Park 8950 .0 .0 * 1.2 1.4 86
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Basin Index (%) 162* 65
UPPER GREEN RIVER
Big Sandy Opening 9080 .7 .2 350* 2.1 .8 262
Blind Bull Sum 8650 .8 .2 400* 1.6 1.0 160
East Rim Divide 7930 .3 .0 * 1.4 .6 233
Elkhart Park G.S. 9400 .5 .0 * 2.2 .9 244
Gros Ventre Summit 8750 .2 .6 33* 2.0 .8 250
Gunsight Pass 9820 .5 .0 * 2.6 1.1 236
Kendall R.S. 7740 .0 .0 * 1.6 .6 267
Loomis Park 8240 .2 .0 * 2.0 .8 250
New Fork Lake 8340 .1 .0 * .9 .6 150
Pocket Creek 9360 .7 -M * 2.1 -M *
Snider Basin 8060 .3 .0 * 1.6 .6 267
Spring Creek Divide 9000 .3 .0 * 2.0 .9 222
Triple Peak 8500 .2 .0 * 2.5 1.0 250
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Basin Index (%) 410* 232
LOWER GREEN RIVER
Blacks Fork Jct 8870 .0 -M * .3 -M *
Buck Pasture 9700 .1 -M * .6 -M *
EF Blacks Fork GS 9360 .1 -M * .7 -M *
Hams Fork 7840 .1 .0 * .9 .6 150
Hewinta 9519 .1 .0 * .5 .9 56
Hickerson Park 9145 .4 .0 * .6 .8 75
Hole-in-Rock 9150 .0 .0 * .7 .9 78
Indian Creek 9425 .1 .5 20* 1.5 1.0 150
Kelley R.S. 8180 .3 .0 * 1.3 .8 162
Spirit Lk 10235 .0 -M * 1.0 -M *
Steel Creek Park 10200 .3 .4 75* .8 1.1 73
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Basin Index (%) 144* 103
UPPER BEAR RIVER
Bear River RS 8777 .0 -M * .3 -M *
Bug Lake 7950 .2 .0 * .4 1.1 36
Burts Miller Ranch 8000 .0 -M * .3 -M *
Chalk Creek #1 8993 .2 .0 * .9 1.4 64
Hayden Fork 9212 .0 .0 * .6 1.1 55
Kelley R.S. 8180 .3 .0 * 1.3 .8 162
Lily Lake 9156 .0 .0 * .4 1.1 36
Monte Cristo 8960 .2 .0 * .5 1.2 42
Salt River Summit 7760 .1 .0 * 1.6 .8 200
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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.