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 6 , 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 1.7 .5 340* 2.3 2.5 92
Black Bear 8170 4.6 3.7 124* 4.6 4.8 96
Blind Bull Sum 8650 3.5 2.0 175* 1.7 2.5 68
Cottonwood Creek 7670 3.2 1.3 246* 3.3 3.4 97
East Rim Divide 7930 .6 .6 100* .9 1.7 53
Grand Targhee 9260 7.4 5.5 135 4.2 6.1 69
Granite Creek 6770 .7 .6 117* 1.4 2.4 58
Grassy Lake 7265 2.1 1.7 124* 5.2 4.3 121
Gros Ventre Summit 8750 1.7 1.9 89 1.4 2.2 64
Gunsight Pass 9820 1.4 1.4 100 1.7 2.5 68
Lewis Lake Divide 7850 1.8 1.7 106* 4.1 4.1 100
Phillips Bench 8200 3.1 1.8 172* 3.1 3.1 100
Salt River Summit 7640 1.1 .4 275* 1.7 2.1 81
Snake River Station 6920 1.6 .5 320* 3.0 3.1 97
Spring Creek Divide 9000 2.9 1.7 171* 3.0 2.9 103
Thumb Divide 7980 1.6 1.0 160* 2.5 2.7 93
Togwotee Pass 9580 4.7 3.2 147 3.9 3.5 111
Two Ocean Plateau 9240 -M 4.1 * -M 3.9 *
Willow Creek 8080 3.0 1.7 176* 5.0 4.6 109
Younts Peak 8350 2.7 1.8 150 2.5 2.6 96
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Basin Index (%) 150* 91
MADISON-GALLATIN
Black Bear 8170 4.6 3.7 124* 4.6 4.8 96
Canyon 7870 2.1 1.0 210* 2.2 2.3 96
Madison Plateau 7750 3.2 1.8 178* 3.3 3.5 94
West Yellowstone 6700 1.1 .3 367* 1.3 2.2 59
Whiskey Creek 6800 2.1 .9 233* 2.6 2.8 93
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Basin Index (%) 170* 90
YELLOWSTONE
Beartooth Lake 9360 4.6 3.4 135 4.2 2.8 150
Burnt Mtn 5880 1.3 .0 * 4.1 3.6 114
Canyon 7870 2.1 1.0 210* 2.2 2.3 96
Cole Creek 7850 5.5 3.0 183 4.1 3.4 121
Evening Star 9200 5.8 3.1 187 6.0 4.0 150
Fisher Creek 9100 5.5 3.5 157 6.0 4.4 136
Northeast Entrance 7350 1.7 .2 850* 2.9 2.1 138
Parker Peak 9400 5.4 3.1 174 4.8 3.1 155
Sylvan Lake 8420 3.9 2.2 177 4.9 3.6 136
Thumb Divide 7980 1.6 1.0 160* 2.5 2.7 93
Two Ocean Plateau 9240 -M 4.1 * -M 3.9 *
White Mill 8700 5.2 2.7 193 3.7 3.5 106
Wolverine 7650 1.3 .3 433* 3.1 2.2 141
Younts Peak 8350 2.7 1.8 150 2.5 2.6 96
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Basin Index (%) 184 127
WIND RIVER
Burroughs Creek 8750 1.6 -M * 3.3 -M *
Castle Creek 8400 .3 -M * 1.3 -M *
Cold Springs 9630 1.0 1.2 83 1.6 2.2 73
Deer Park 9700 1.9 1.9 100 2.2 3.5 63
Hobbs Park 10100 1.8 2.3 78 2.1 2.6 81
Kirwin 9550 3.5 2.0 175 2.3 2.4 96
Little Warm 9370 2.9 1.5 193 1.4 2.3 61
Owl Creek 8975 .7 1.0 70 1.2 1.4 86
South Pass 9040 1.7 1.6 106 2.0 2.8 71
St. Lawrence Alt 8620 .7 1.0 70 1.2 2.1 57
Togwotee Pass 9580 4.7 3.2 147 3.9 3.5 111
Townsend Creek 8700 1.4 1.2 117 1.9 2.6 73
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Basin Index (%) 120 78
BIGHORN BASIN
Bald Mtn. 9380 6.2 3.6 172 5.2 3.2 162
Bear Trap Meadow 8200 2.5 .7 357 3.5 2.0 175
Bone Springs Div 9350 4.4 3.1 142 3.4 3.1 110
Grave Springs 8550 3.3 1.0 330 4.1 2.6 158
Kirwin 9550 3.5 2.0 175 2.3 2.4 96
Marquette 8760 2.0 -M * 2.7 -M *
Middle Powder 7760 3.5 1.3 269 4.2 2.8 150
Owl Creek 8975 .7 1.0 70 1.2 1.4 86
Powder River Pass 9480 3.8 1.6 238 3.8 2.5 152
Shell Creek 9580 4.8 3.3 145 3.1 2.8 111
Timber Creek 7950 1.6 .8 200 2.0 2.4 83
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Basin Index (%) 186 130
SHOSHONE RIVER
Blackwater 9780 5.2 3.3 158 4.4 3.4 129
Evening Star 9200 5.8 3.1 187 6.0 4.0 150
Marquette 8760 2.0 -M * 2.7 -M *
Sylvan Lake 8420 3.9 2.2 177 4.9 3.6 136
Sylvan Road 7120 1.6 .5 320* 3.8 2.8 136
Younts Peak 8350 2.7 1.8 150 2.5 2.6 96
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Basin Index (%) 176 132
POWDER RIVER
Bear Trap Meadow 8200 2.5 .7 357 3.5 2.0 175
Cloud Peak Reservoir 9860 3.1 2.2 141 3.9 3.2 122
Grave Springs 8550 3.3 1.0 330 4.1 2.6 158
Hansen Sawmill 8360 1.6 .8 200 2.3 2.1 110
Middle Powder 7760 3.5 1.3 269 4.2 2.8 150
Powder River Pass 9480 3.8 1.6 238 3.8 2.5 152
Soldier Park 8720 1.3 -M * 2.3 -M *
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Basin Index (%) 234 143
TONGUE RIVER
Big Goose 7990 1.8 1.2 150 2.8 2.8 100
Bone Springs Div 9350 4.4 3.1 142 3.4 3.1 110
Burgess Junction 7880 3.0 1.6 188 -M 2.8 *
Dome Lake 8880 2.3 2.3 100 2.5 3.1 81
Little Goose 8870 2.5 -M * 2.4 -M *
Sucker Creek 8880 3.6 1.8 200 3.6 3.1 116
Tie Creek 6870 2.2 .3 733* 3.5 3.0 117
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Basin Index (%) 168 105
BELLE FOURCHE
Blind Park 6890 2.4 .8 300 3.0 3.0 100
Cole Canyon 5910 1.8 .0 * 3.9 2.4 162
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Basin Index (%) 525 128
CHEYENNE RIVER BASIN
Blind Park 6890 2.4 .8 300 3.0 3.0 100
North Rapid Creek 6130 2.1 .5 420* 2.8 2.6 108
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Basin Index (%) 346 104
UPPER N. PLATTE
Arapaho Ridge 10960 3.0 3.2 94 3.3 4.0 82
Blackhall Mtn 9820 4.2 -M * 5.0 -M *
Columbine 9160 3.4 1.1 309* 3.4 3.3 103
Divide Peak 8880 2.5 2.0 125* 3.3 3.8 87
Joe Wright 10120 2.7 3.3 82 4.5 4.3 105
Laprele Creek 8375 2.9 .8 362* 3.3 2.5 132
Med Bow 10500 6.1 -M * 6.0 -M *
Never Summer 10280 3.2 2.7 119 2.4 -M *
North French Creek 10130 5.1 3.1 165* 5.4 4.1 132
Old Battle 10000 4.8 3.2 150* 4.8 5.1 94
Rawah 9020 2.2 .8 275* 3.4 2.9 117
Sage Creek Basin 7850 1.8 .9 200* 1.6 2.8 57
Sand Lake 10050 4.6 3.3 139 4.6 3.8 121
South Brush Creek 8440 2.3 .8 288* 2.9 2.9 100
Tower 10500 6.5 5.0 130* 6.2 5.6 111
Webber Springs 9250 3.3 1.6 206* 3.9 3.9 100
Whiskey Park 8950 4.5 1.6 281* 5.4 3.7 146
Willow Creek Pass 9540 2.5 1.6 156 2.3 2.5 92
Zirkel 9340 -M 1.7 * -M 4.7 *
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Basin Index (%) 158* 106
SWEETWATER
Deer Park 9700 1.9 1.9 100 2.2 3.5 63
Larsen Creek 9000 .3 .4 75* 1.3 -M *
South Pass 9040 1.7 1.6 106 2.0 2.8 71
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Basin Index (%) 100 67
LOWER N. PLATTE
Casper Mtn. 7900 4.4 1.5 293 3.8 3.4 112
Laprele Creek 8375 2.9 .8 362* 3.3 2.5 132
Reno Hill 8400 4.2 1.8 233 4.9 3.2 153
Windy Peak 7900 2.3 .6 383* 2.2 2.2 100
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Basin Index (%) 294 126
LARAMIE RIVER
Brooklyn Lake 10240 3.4 1.7 200* 4.2 2.9 145
Cinnabar Park 9574 4.0 1.9 211* 5.1 3.6 142
Crow Creek 8330 1.5 .8 188 2.4 2.3 104
Deadman Hill 10220 3.6 2.4 150 3.4 3.0 113
Rawah 9020 2.2 .8 275* 3.4 2.9 117
Roach 9700 3.3 1.7 194* 3.1 3.0 103
Windy Peak 7900 2.3 .6 383* 2.2 2.2 100
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Basin Index (%) 205* 120
S. PLATTE
Black Mountain 8920 2.0 -M * 2.4 -M *
Crow Creek 8330 1.5 .8 188 2.4 2.3 104
Deadman Hill 10220 3.6 2.4 150 3.4 3.0 113
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Basin Index (%) 159 109
LITTLE SNAKE RIVER
Battle Mountain 7440 1.7 .0 * 2.2 2.6 85
Divide Peak 8880 2.5 2.0 125* 3.3 3.8 87
Elk River 8700 2.5 .4 625* 2.2 3.1 71
Little Snake River 8915 2.9 1.2 242* 5.1 5.3 96
Old Battle 10000 4.8 3.2 150* 4.8 5.1 94
Sage Creek Basin 7850 1.8 .9 200* 1.6 2.8 57
Sandstone RS 8150 2.1 .4 525* 2.4 2.9 83
Whiskey Park 8950 4.5 1.6 281* 5.4 3.7 146
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Basin Index (%) 235* 92
UPPER GREEN RIVER
Big Sandy Opening 9080 1.4 1.9 74 1.1 2.1 52
Blind Bull Sum 8650 3.5 2.0 175* 1.7 2.5 68
East Rim Divide 7930 .6 .6 100* .9 1.7 53
Elkhart Park G.S. 9400 .8 1.3 62 .8 2.2 36
Gros Ventre Summit 8750 1.7 1.9 89 1.4 2.2 64
Gunsight Pass 9820 1.4 1.4 100 1.7 2.5 68
Indian Creek 9425 2.7 2.6 104 2.0 2.9 69
Kendall R.S. 7740 .8 .7 114* .9 2.0 45
Loomis Park 8240 1.0 1.0 100* 3.1 2.2 141
New Fork Lake 8340 1.3 .9 144* 1.0 1.8 56
Pocket Creek 9360 -M -M * 1.3 -M *
Snider Basin 8060 1.1 .4 275* 1.9 1.8 106
Spring Creek Divide 9000 2.9 1.7 171* 3.0 2.9 103
Triple Peak 8500 3.3 1.8 183* 3.2 3.0 107
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Basin Index (%) 124* 76
LOWER GREEN RIVER
Blacks Fork Jct 8869 .4 -M * 1.8 -M *
Buck Pasture 9632 1.6 -M * 2.2 -M *
EF Blacks Fork GS 9360 1.9 -M * 1.8 -M *
Hams Fork 7840 .6 .4 150* 1.8 1.8 100
Hewinta 9500 .0 .4 0* 2.4 2.6 92
Hickerson Park 9122 .8 .6 133* 1.7 2.4 71
Hole-in-Rock 9168 1.2 .5 240* 1.3 2.4 54
Indian Creek 9425 2.7 2.6 104 2.0 2.9 69
Kelley R.S. 8180 1.5 .9 167* 2.0 2.4 83
Spirit Lk 10235 1.1 -M * 1.9 -M *
Steel Creek Park 10158 2.2 1.9 116 2.9 2.9 100
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Basin Index (%) 123* 81
UPPER BEAR RIVER
Bear River RS 8777 .4 -M * 1.4 -M *
Bug Lake 7987 1.7 .9 189* 2.3 2.7 85
Burts Miller Ranch 8000 .2 -M * .9 -M *
Chalk Creek #1 9171 2.4 2.1 114* 2.2 3.8 58
Hayden Fork 9130 1.1 .6 183* 2.8 3.2 88
Kelley R.S. 8180 1.5 .9 167* 2.0 2.4 83
Lily Lake 9133 .9 .9 100* 1.6 3.0 53
Monte Cristo 8932 2.7 1.1 245* 2.4 3.5 69
Salt River Summit 7640 1.1 .4 275* 1.7 2.1 81
Spring Creek Divide 9000 2.9 1.7 171* 3.0 2.9 103
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Basin Index (%) 166* 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.
