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: NOVEMBER 4 , 2019
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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 7060 1.8 .3 600* 2.3 2.3 100
Black Bear 8170 4.6 3.3 139* 4.6 4.4 105
Blind Bull Sum 8650 3.5 1.7 206* 1.7 2.3 74
Cottonwood Creek 7670 3.2 1.2 267* 3.3 3.1 106
East Rim Divide 7930 .6 .5 120* .9 1.6 56
Grand Targhee 9260 7.4 5.2 142 4.2 5.6 75
Granite Creek 6770 .8 .4 200* 1.4 2.2 64
Grassy Lake 7265 2.2 1.4 157* 5.3 3.9 136
Gros Ventre Summit 8750 1.7 1.8 94 1.4 2.0 70
Gunsight Pass 9820 1.5 1.2 125* 1.8 2.3 78
Lewis Lake Divide 7850 1.8 1.4 129* 4.2 3.7 114
Phillips Bench 8200 3.2 1.6 200* 3.1 2.8 111
Salt River Summit 7640 1.1 .4 275* 1.7 2.0 85
Snake River Station 6920 1.7 .4 425* 3.1 2.8 111
Spring Creek Divide 9000 2.9 1.5 193* 3.0 2.6 115
Thumb Divide 7980 1.4 .7 200* 2.5 2.5 100
Togwotee Pass 9580 4.8 3.0 160 3.9 3.2 122
Two Ocean Plateau 9240 -M 3.6 * -M 3.6 *
Willow Creek 8080 3.0 1.4 214* 5.0 4.2 119
Younts Peak 8350 3.0 1.6 188 2.6 2.5 104
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Basin Index (%) 173* 100
MADISON-GALLATIN
Black Bear 8170 4.6 3.3 139* 4.6 4.4 105
Canyon 7870 2.1 .9 233* 2.3 2.2 105
Madison Plateau 7750 3.2 1.7 188* 3.2 3.2 100
West Yellowstone 6700 1.1 .2 550* 1.3 2.1 62
Whiskey Creek 6800 2.1 .7 300* 2.6 2.7 96
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Basin Index (%) 193* 96
YELLOWSTONE
Beartooth Lake 9360 4.5 3.2 141 4.1 2.6 158
Burnt Mtn 5880 1.3 .0 * 4.0 3.6 111
Canyon 7870 2.1 .9 233* 2.3 2.2 105
Cole Creek 7850 5.0 2.9 172 3.8 3.3 115
Evening Star 9200 5.7 2.7 211 5.9 3.7 159
Fisher Creek 9100 5.2 3.2 162* 5.6 4.0 140
Northeast Entrance 7350 1.6 .0 * 2.7 2.0 135
Parker Peak 9400 5.4 2.9 186 4.8 2.9 166
Sylvan Lake 8420 3.9 2.0 195* 4.9 3.4 144
Thumb Divide 7980 1.4 .7 200* 2.5 2.5 100
Two Ocean Plateau 9240 -M 3.6 * -M 3.6 *
White Mill 8700 5.0 2.5 200 3.6 3.2 112
Wolverine 7650 1.5 .2 750* 3.1 2.1 148
Younts Peak 8350 3.0 1.6 188 2.6 2.5 104
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Basin Index (%) 200* 131
WIND RIVER
Burroughs Creek 8750 1.6 -M * 3.4 -M *
Castle Creek 8400 .3 -M * 1.5 -M *
Cold Springs 9630 1.0 1.0 100 1.6 2.1 76
Deer Park 9700 1.9 1.8 106 2.2 3.4 65
Hobbs Park 10100 1.7 2.1 81 2.0 2.5 80
Kirwin 9550 3.5 1.9 184 2.3 2.2 105
Little Warm 9370 2.8 1.4 200 1.5 2.1 71
Owl Creek 8975 .6 .9 67 1.2 1.4 86
South Pass 9040 1.6 1.5 107* 1.8 2.6 69
St. Lawrence Alt 8620 .7 1.0 70 1.2 2.0 60
Togwotee Pass 9580 4.8 3.0 160 3.9 3.2 122
Townsend Creek 8700 1.4 1.1 127 1.9 2.5 76
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Basin Index (%) 127 82
BIGHORN BASIN
Bald Mtn. 9380 5.9 3.4 174 5.0 3.0 167
Bear Trap Meadow 8200 2.3 .6 383 3.6 1.9 189
Bone Springs Div 9350 4.3 3.0 143 3.3 3.0 110
Grave Springs 8550 3.2 1.0 320 4.1 2.5 164
Kirwin 9550 3.5 1.9 184 2.3 2.2 105
Marquette 8760 2.0 -M * 2.6 -M *
Middle Powder 7760 3.4 1.2 283* 4.1 2.7 152
Owl Creek 8975 .6 .9 67 1.2 1.4 86
Powder River Pass 9480 3.5 1.6 219 3.6 2.4 150
Shell Creek 9580 4.5 3.1 145 3.0 2.6 115
Timber Creek 7950 1.6 .8 200 2.0 2.3 87
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Basin Index (%) 187 134
SHOSHONE RIVER
Blackwater 9780 5.2 3.1 168 4.4 3.2 138
Evening Star 9200 5.7 2.7 211 5.9 3.7 159
Marquette 8760 2.0 -M * 2.6 -M *
Sylvan Lake 8420 3.9 2.0 195* 4.9 3.4 144
Sylvan Road 7120 1.5 .4 375* 4.2 2.6 162
Younts Peak 8350 3.0 1.6 188 2.6 2.5 104
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Basin Index (%) 197 143
POWDER RIVER
Bear Trap Meadow 8200 2.3 .6 383 3.6 1.9 189
Cloud Peak Reservoir 9860 2.9 2.1 138 3.8 3.0 127
Grave Springs 8550 3.2 1.0 320 4.1 2.5 164
Hansen Sawmill 8360 1.5 .7 214 2.2 2.0 110
Middle Powder 7760 3.4 1.2 283* 4.1 2.7 152
Powder River Pass 9480 3.5 1.6 219 3.6 2.4 150
Soldier Park 8720 1.2 -M * 2.3 -M *
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Basin Index (%) 233 148
TONGUE RIVER
Big Goose 7990 1.7 1.0 170* 3.1 2.7 115
Bone Springs Div 9350 4.3 3.0 143 3.3 3.0 110
Burgess Junction 7880 3.0 1.5 200 5.6 2.7 207
Dome Lake 8880 2.1 2.2 95 2.5 3.0 83
Little Goose 8870 2.4 -M * 2.3 -M *
Sucker Creek 8880 3.5 1.7 206 3.6 3.0 120
Tie Creek 6870 2.1 .3 700* 3.4 2.9 117
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Basin Index (%) 172 124
BELLE FOURCHE
Blind Park 6890 2.4 .7 343* 3.0 2.8 107
Cole Canyon 5910 1.8 .0 * 3.9 2.3 170
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Basin Index (%) 600* 135
CHEYENNE RIVER BASIN
Blind Park 6890 2.4 .7 343* 3.0 2.8 107
North Rapid Creek 6130 2.2 .4 550* 2.8 2.5 112
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Basin Index (%) 418* 109
UPPER N. PLATTE
Arapaho Ridge 10960 3.0 3.1 97 3.3 3.8 87
Blackhall Mtn 9820 4.2 -M * 5.0 -M *
Columbine 9160 3.4 1.0 340* 4.0 3.1 129
Divide Peak 8880 2.5 1.8 139* 3.3 3.6 92
Joe Wright 10120 2.7 3.0 90 4.5 4.1 110
Laprele Creek 8375 2.9 .6 483* 3.4 2.3 148
Med Bow 10500 6.2 -M * 6.0 -M *
Never Summer 10280 3.1 2.6 119 2.4 -M *
North French Creek 10130 5.1 2.9 176* 5.4 3.8 142
Old Battle 10000 4.8 3.0 160* 4.8 4.8 100
Rawah 9020 2.3 .7 329* 3.5 2.8 125
Sage Creek Basin 7850 1.8 .7 257* 1.6 2.7 59
Sand Lake 10050 4.6 3.0 153* 4.6 3.6 128
South Brush Creek 8440 2.3 .8 288* 3.0 2.7 111
Tower 10500 6.5 4.4 148* 6.4 5.2 123
Webber Springs 9250 3.3 1.4 236* 3.9 3.7 105
Whiskey Park 8950 4.5 1.4 321* 5.5 3.4 162
Willow Creek Pass 9540 2.5 1.5 167 2.4 2.3 104
Zirkel 9340 -M 1.5 * -M 4.3 *
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Basin Index (%) 173* 115
SWEETWATER
Deer Park 9700 1.9 1.8 106 2.2 3.4 65
Larsen Creek 9000 .3 .3 100* 1.3 -M *
South Pass 9040 1.6 1.5 107* 1.8 2.6 69
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Basin Index (%) 106* 67
LOWER N. PLATTE
Casper Mtn. 7900 4.3 1.4 307* 3.8 3.2 119
Laprele Creek 8375 2.9 .6 483* 3.4 2.3 148
Reno Hill 8400 4.2 1.6 262 4.8 3.0 160
Windy Peak 7900 2.2 .6 367* 2.0 2.1 95
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Basin Index (%) 324* 132
LARAMIE RIVER
Brooklyn Lake 10240 3.5 1.6 219* 4.3 2.7 159
Cinnabar Park 9574 4.1 1.6 256* 5.1 3.3 155
Crow Creek 8330 1.6 .7 229* 2.4 2.3 104
Deadman Hill 10220 3.6 2.4 150 3.5 2.8 125
Rawah 9020 2.3 .7 329* 3.5 2.8 125
Roach 9700 3.3 1.6 206* 3.0 2.9 103
Windy Peak 7900 2.2 .6 367* 2.0 2.1 95
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Basin Index (%) 224* 126
S. PLATTE
Black Mountain 8920 2.1 -M * 2.4 -M *
Crow Creek 8330 1.6 .7 229* 2.4 2.3 104
Deadman Hill 10220 3.6 2.4 150 3.5 2.8 125
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Basin Index (%) 168* 116
LITTLE SNAKE RIVER
Battle Mountain 7440 1.9 .0 * 2.4 2.4 100
Divide Peak 8880 2.5 1.8 139* 3.3 3.6 92
Elk River 8700 2.6 .3 867* 2.3 2.9 79
Little Snake River 8915 3.0 1.1 273* 5.3 4.9 108
Old Battle 10000 4.8 3.0 160* 4.8 4.8 100
Sage Creek Basin 7850 1.8 .7 257* 1.6 2.7 59
Sandstone RS 8150 2.2 .1 2200* 2.5 2.7 93
Whiskey Park 8950 4.5 1.4 321* 5.5 3.4 162
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Basin Index (%) 277* 101
UPPER GREEN RIVER
Big Sandy Opening 9080 1.4 1.7 82 1.1 2.0 55
Blind Bull Sum 8650 3.5 1.7 206* 1.7 2.3 74
East Rim Divide 7930 .6 .5 120* .9 1.6 56
Elkhart Park G.S. 9400 .8 1.2 67* .7 2.1 33
Gros Ventre Summit 8750 1.7 1.8 94 1.4 2.0 70
Gunsight Pass 9820 1.5 1.2 125* 1.8 2.3 78
Indian Creek 9425 2.7 2.4 112* 2.0 2.7 74
Kendall R.S. 7740 .8 .5 160* 1.0 1.8 56
Loomis Park 8240 1.0 .8 125* 3.3 2.1 157
New Fork Lake 8340 1.2 .7 171* 1.1 1.6 69
Pocket Creek 9360 -M -M * 1.4 -M *
Snider Basin 8060 1.2 .3 400* 1.9 1.7 112
Spring Creek Divide 9000 2.9 1.5 193* 3.0 2.6 115
Triple Peak 8500 3.2 1.5 213* 3.2 2.6 123
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Basin Index (%) 142* 84
LOWER GREEN RIVER
Blacks Fork Jct 8869 .6 -M * 1.8 -M *
Buck Pasture 9632 1.8 -M * 2.1 -M *
EF Blacks Fork GS 9360 1.8 -M * 1.7 -M *
Hams Fork 7840 .6 .3 200* 1.8 1.6 112
Hewinta 9500 .5 .3 167* 2.6 2.4 108
Hickerson Park 9122 1.0 .4 250* 1.6 2.3 70
Hole-in-Rock 9168 1.4 .4 350* 1.5 2.2 68
Indian Creek 9425 2.7 2.4 112* 2.0 2.7 74
Kelley R.S. 8180 1.5 .8 188* 2.0 2.2 91
Spirit Lk 10235 1.2 -M * 1.9 -M *
Steel Creek Park 10158 2.2 1.7 129* 2.9 2.7 107
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Basin Index (%) 157* 89
UPPER BEAR RIVER
Bear River RS 8777 .4 -M * 1.4 -M *
Bug Lake 7987 1.6 .8 200* 2.2 2.5 88
Burts Miller Ranch 8000 .2 -M * .9 -M *
Chalk Creek #1 9171 2.4 1.9 126* -M 3.5 *
Hayden Fork 9130 1.1 .5 220* 2.8 3.0 93
Kelley R.S. 8180 1.5 .8 188* 2.0 2.2 91
Lily Lake 9133 1.1 .8 138* 1.6 2.8 57
Monte Cristo 8932 2.7 .9 300* 2.4 3.3 73
Salt River Summit 7640 1.1 .4 275* 1.7 2.0 85
Spring Creek Divide 9000 2.9 1.5 193* 3.0 2.6 115
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Basin Index (%) 189* 85
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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.
