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 8 , 2023
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Median Med
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WYOMING
SNAKE RIVER
Base Camp 7060 .9 .8 112* 4.7 3.0 157
Blind Bull Sum 8650 2.5 2.2 114* 2.8 2.7 104
Cottonwood Creek 7670 1.4 1.9 74* 5.2 4.0 130
East Rim Divide 7930 .0 .5 0* 1.9 2.0 95
Grand Targhee 9260 7.0 6.2 113 8.3 5.9 141
Granite Creek 6770 .0 .6 0* 2.7 3.0 90
Grassy Lake 7265 1.4 1.8 78* 6.7 4.8 140
Gros Ventre Summit 8750 1.0 1.8 56 3.1 2.4 129
Gunsight Pass 9820 2.0 1.5 133 4.7 3.0 157
Lewis Lake Divide 7850 3.8 2.0 190* 7.7 5.0 154
Loomis Park 8240 1.1 1.2 92* 2.5 2.5 100
Phillips Bench 8200 1.8 1.8 100* 4.9 3.8 129
Salt River Summit 7640 .2 .4 50* 1.2 2.3 52
Snake River Station 6920 .7 .6 117* 5.5 3.5 157
Somsen Ranch 6800 .1 .4 25* 4.5 2.8 161
Spring Creek Divide 9000 1.9 2.3 83* 3.4 3.4 100
Thumb Divide 7980 2.8 1.0 280* 4.6 2.8 164
Togwotee Pass 9580 3.2 3.3 97 4.3 4.2 102
Triple Peak 8500 2.1 2.1 100* 3.7 3.5 106
Two Ocean Plateau 9240 4.8 4.9 98 7.0 4.3 163
Willow Creek 8080 1.9 2.0 95* 6.5 5.2 125
Younts Peak 8350 -M 1.8 * -M 2.7 *
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Basin Index (%) 103* 129
MADISON HEADWATERS IN WYOMING
Black Bear 8170 5.0 3.8 132* 8.7 5.8 150
Canyon 7870 1.6 -M * 3.6 -M *
Madison Plateau 7750 2.7 1.9 142* 6.1 3.9 156
West Yellowstone 6700 .6 .4 150* 4.1 2.4 171
Whiskey Creek 6800 .7 1.0 70* 5.8 3.0 193
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Basin Index (%) 127* 164
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 3.7 3.7 100 4.2 3.3 127
Canyon 7870 1.6 -M * 3.6 -M *
Evening Star 9200 5.2 3.4 153 9.3 5.2 179
Fisher Creek 9100 4.5 4.0 112 6.8 5.3 128
Monument Peak 8850 3.3 3.0 110 6.1 4.4 139
Northeast Entrance 7350 .2 .4 50* 3.3 2.6 127
Parker Peak 9400 4.6 3.3 139 7.1 3.3 215
Sylvan Lake 8420 3.9 2.3 170 8.6 4.4 195
Thumb Divide 7980 2.8 1.0 280* 4.6 2.8 164
Two Ocean Plateau 9240 4.8 4.9 98 7.0 4.3 163
White Mill 8700 3.8 2.7 141 5.1 4.2 121
Wolverine 7650 .8 .4 200* 5.6 2.5 224
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Basin Index (%) 129 160
WIND RIVER
Burroughs Creek 8750 1.3 -M * 2.8 -M *
Castle Creek 8400 1.0 .2 500* 2.5 1.5 167
Cold Springs 9630 1.0 1.0 100 3.0 2.2 136
Deer Park 9700 1.5 1.6 94 3.5 2.8 125
Hobbs Park 10100 3.8 2.2 173 5.0 2.8 179
Kirwin 9550 4.2 2.1 200 5.8 2.5 232
Little Warm 9370 2.1 1.5 140 4.3 2.4 179
South Pass 9040 .9 1.4 64* 2.6 2.4 108
St. Lawrence Alt 8620 .0 -M * 2.7 -M *
Togwotee Pass 9580 3.2 3.3 97 4.3 4.2 102
Townsend Creek 8700 .4 1.2 33 3.8 2.5 152
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Basin Index (%) 125 149
BIGHORN BASIN
Bald Mtn. 9380 3.8 4.0 95 4.5 3.8 118
Bear Trap Meadow 8200 .6 .8 75 3.2 2.0 160
Bone Springs Div 9350 -M 3.1 * 5.3 3.2 166
Grave Springs 8550 .2 1.0 20 2.2 2.0 110
Kirwin 9550 4.2 2.1 200 5.8 2.5 232
Marquette 8760 3.6 1.2 300 7.4 2.4 308
Middle Powder 7760 .1 1.2 8* 3.3 2.4 138
Owl Creek 8975 .3 .9 33 2.2 1.7 129
Powder River Pass 9480 .8 2.0 40 3.4 2.7 126
Shell Creek 9580 4.3 3.4 126 5.4 3.0 180
Timber Creek 7950 1.4 .7 200 5.5 2.0 275
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Basin Index (%) 112 174
SHOSHONE RIVER
Blackwater 9780 6.1 3.8 161 6.6 3.7 178
Evening Star 9200 5.2 3.4 153 9.3 5.2 179
Marquette 8760 3.6 1.2 300 7.4 2.4 308
Sylvan Lake 8420 3.9 2.3 170 8.6 4.4 195
Sylvan Road 7120 1.2 .8 150* 6.8 3.2 212
Younts Peak 8350 -M 1.8 * -M 2.7 *
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Basin Index (%) 174 205
POWDER RIVER
Bear Trap Meadow 8200 .6 .8 75 3.2 2.0 160
Cloud Peak Reservoir 9860 3.6 2.3 157 6.0 3.2 188
Grave Springs 8550 .2 1.0 20 2.2 2.0 110
Hansen Sawmill 8360 .6 .8 75 2.8 2.2 127
Middle Powder 7760 .1 1.2 8* 3.3 2.4 138
Powder River Pass 9480 .8 2.0 40 3.4 2.7 126
Soldier Park 8720 .2 .3 67* 4.4 2.1 210
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Basin Index (%) 73 152
TONGUE RIVER
Big Goose 7990 .5 1.0 50 4.9 2.4 204
Bone Springs Div 9350 -M 3.1 * 5.3 3.2 166
Burgess Junction 7880 1.7 1.5 113 5.5 3.0 183
Dome Lake 8880 2.4 2.2 109 5.5 2.9 190
Little Goose 8870 1.7 .6 283* 5.3 2.4 221
Sucker Creek 8880 2.8 2.2 127 6.1 3.1 197
Tie Creek 6870 .2 .2 100* 6.5 2.8 232
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Basin Index (%) 121 197
BELLE FOURCHE
Blind Park 6890 .2 .8 25 2.0 2.6 77
Cole Canyon 5910 .0 .0 * 1.6 1.8 89
North Rapid Creek 6130 .1 .4 25* 2.6 1.8 144
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Basin Index (%) 25* 100
CHEYENNE RIVER BASIN
Blind Park 6890 .2 .8 25 2.0 2.6 77
North Rapid Creek 6130 .1 .4 25* 2.6 1.8 144
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Basin Index (%) 25 105
UPPER N. PLATTE
Arapaho Ridge 10976 .5 3.2 16 1.7 3.8 45
Blackhall Mtn 9839 1.3 3.6 36 3.4 5.0 68
Cinnabar Park 9707 .6 2.1 29 1.5 3.2 47
Columbine 9167 .0 1.3 0* 1.9 3.8 50
Divide Peak 8730 .2 2.0 10* 3.6 3.8 95
Joe Wright 10158 .9 3.0 30 3.0 4.8 62
Laprele Creek 8390 .3 .8 38* 3.0 2.4 125
Med Bow 10512 2.3 -M * 3.1 -M *
Never Summer 10323 2.2 3.0 73 2.2 3.5 63
North French Creek 10153 .8 3.2 25* 2.7 4.6 59
Old Battle 9860 .9 3.5 26* 2.8 5.0 56
Rawah 9069 .1 1.2 8 2.7 3.4 79
Sage Creek Basin 7850 .2 .7 29* 2.0 2.5 80
Sand Lake 10098 2.5 3.9 64 2.7 4.2 64
South Brush Creek 8495 .0 1.0 0* 1.7 3.0 57
Tower 10620 1.4 5.2 27 3.5 6.0 58
Webber Springs 9260 .7 1.8 39* 2.1 4.0 52
Whiskey Park 9020 .7 1.6 44* 2.5 4.2 60
Willow Creek Pass 9523 1.7 2.0 85 2.4 2.8 86
Zirkel 9338 .2 1.6 12* 2.1 4.6 46
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Basin Index (%) 34* 64
SWEETWATER
Deer Park 9700 1.5 1.6 94 3.5 2.8 125
Larsen Creek 9000 .2 .2 100* 2.7 2.3 117
South Pass 9040 .9 1.4 64* 2.6 2.4 108
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Basin Index (%) 81* 117
LOWER N. PLATTE
Casper Mtn. 7920 1.3 1.6 81 5.9 3.0 197
Laprele Creek 8390 .3 .8 38* 3.0 2.4 125
Reno Hill 8430 .8 1.9 42 4.7 2.8 168
Windy Peak 7915 .3 .6 50* 2.0 2.0 100
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Basin Index (%) 55 153
LARAMIE RIVER
Brooklyn Lake 10250 .2 1.9 11* 1.5 3.1 48
Cinnabar Park 9707 .6 2.1 29 1.5 3.2 47
Crow Creek 8335 .0 .4 0* 1.9 2.3 83
Deadman Hill 10239 2.1 2.6 81 2.2 3.4 65
Rawah 9069 .1 1.2 8 2.7 3.4 79
Roach 9740 .6 2.0 30 2.0 3.3 61
Windy Peak 7915 .3 .6 50* 2.0 2.0 100
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Basin Index (%) 36 67
S. PLATTE
Crow Creek 8335 .0 .4 0* 1.9 2.3 83
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Basin Index (%) 0* 83
LITTLE SNAKE RIVER
Battle Mountain 7498 .1 .3 33* 2.2 2.6 85
Divide Peak 8730 .2 2.0 10* 3.6 3.8 95
Elk River 8739 .4 .6 67* 1.9 3.2 59
Elkhead Divide 8800 .1 -M * 2.4 -M *
Little Snake River 8928 .2 1.5 13* 2.8 5.1 55
Old Battle 9860 .9 3.5 26* 2.8 5.0 56
Sage Creek Basin 7850 .2 .7 29* 2.0 2.5 80
Sandstone RS 8152 .0 .7 0* 1.5 3.0 50
Whiskey Park 9020 .7 1.6 44* 2.5 4.2 60
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Basin Index (%) 25* 66
UPPER GREEN RIVER
Big Sandy Opening 9080 1.9 1.7 112 3.1 2.4 129
Blind Bull Sum 8650 2.5 2.2 114* 2.8 2.7 104
East Rim Divide 7930 .0 .5 0* 1.9 2.0 95
Elkhart Park G.S. 9400 .9 1.4 64 3.0 2.4 125
Gros Ventre Summit 8750 1.0 1.8 56 3.1 2.4 129
Gunsight Pass 9820 2.0 1.5 133 4.7 3.0 157
Indian Creek 9425 1.3 2.4 54* 2.7 3.0 90
Kendall R.S. 7740 .0 .5 0* 2.8 2.2 127
Larsen Creek 9000 .2 .2 100* 2.7 2.3 117
Loomis Park 8240 1.1 1.2 92* 2.5 2.5 100
New Fork Lake 8340 -M .9 * 1.0 1.8 56
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 -M .6 * 1.5 1.9 79
Spring Creek Divide 9000 1.9 2.3 83* 3.4 3.4 100
Triple Peak 8500 2.1 2.1 100* 3.7 3.5 106
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Basin Index (%) 84* 110
LOWER GREEN RIVER
Blacks Fork Jct 8869 .8 .0 * 2.5 1.8 139
Buck Pasture 9632 .5 -M * 2.6 -M *
EF Blacks Fork GS 9360 .3 .6 50* 2.2 2.0 110
Hams Fork 7840 -M .4 * 1.2 2.0 60
Henrys Fork 10182 -M -M * 3.0 -M *
Hewinta 9500 .2 .3 67* 2.4 2.8 86
Hickerson Park 9122 .5 .6 83* 3.4 2.4 142
Hole-in-Rock 9168 .1 .6 17* 2.6 2.2 118
Indian Creek 9425 1.3 2.4 54* 2.7 3.0 90
Kelley R.S. 8180 .3 1.1 27* 2.1 2.6 81
Spirit Lk 10235 .8 1.1 73* 3.8 2.6 146
Steel Creek Park 10158 1.1 1.5 73* 2.9 3.0 97
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Basin Index (%) 66* 106
UPPER BEAR RIVER
Bear River RS 8777 .6 .1 600* 2.6 1.8 144
Bug Lake 7987 1.2 .8 150* 3.3 2.5 132
Burts Miller Ranch 8000 .7 .0 * 2.4 1.4 171
Chalk Creek #1 9171 1.4 1.8 78* 3.8 3.6 106
Giveout 6930 -M .2 * 1.5 2.0 75
Hayden Fork 9130 .5 .7 71* 3.6 3.4 106
Kelley R.S. 8180 .3 1.1 27* 2.1 2.6 81
Lily Lake 9133 .7 .8 88* 3.0 3.0 100
Monte Cristo 8932 1.6 1.2 133* 3.7 3.3 112
Salt River Summit 7640 .2 .4 50* 1.2 2.3 52
Spring Creek Divide 9000 1.9 2.3 83* 3.4 3.4 100
Trial Lake 9992 .6 1.6 38* 2.6 3.2 81
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Basin Index (%) 90* 102
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Median (or Average) 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 (or Average) represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median (or Average) value for those sites on this day.
The TOTAL PRECIPITATION Percent of Median (or Average) represents the total precipitation
(beginning October 1st) found at selected SNOTEL sites in or near the basin
compared to the Median (or Average) value for those sites on this day.
Contact your state water supply staff for assistance.
Medians and averages are calculated for the period 1991-2020.
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 or average for the day is less than 10% of the maximum
median or average value for the year.
* Basin - More than half of the stations for a basin with medians (or averages) report missing or invalid data
The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians or averages 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.