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 1 , 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 .5 .3 167* 3.0 2.3 130
Blind Bull Sum 8650 .9 1.4 64* 1.7 2.1 81
Cottonwood Creek 7670 1.0 1.0 100* 3.8 3.1 123
East Rim Divide 7930 .0 .2 0* 1.6 1.4 114
Grand Targhee 9260 3.4 4.7 72* 6.0 5.2 115
Granite Creek 6770 -M .0 * -M 2.0 *
Grassy Lake 7265 .9 1.2 75* 4.2 3.6 117
Gros Ventre Summit 8750 .1 1.6 6 2.6 1.8 144
Gunsight Pass 9820 1.3 .8 162* 3.8 2.3 165
Lewis Lake Divide 7850 2.2 .9 244* 4.6 3.6 128
Loomis Park 8240 .4 .7 57* 1.8 1.9 95
Phillips Bench 8200 1.0 1.4 71* 3.3 2.6 127
Salt River Summit 7640 .2 .2 100* .8 1.9 42
Snake River Station 6920 .6 .2 300* 3.7 2.8 132
Somsen Ranch 6800 .6 .0 * 3.0 2.0 150
Spring Creek Divide 9000 .4 1.3 31* 2.3 2.6 88
Thumb Divide 7980 1.7 .4 425* 3.1 2.3 135
Togwotee Pass 9580 1.6 2.6 62 3.2 3.1 103
Triple Peak 8500 .7 1.2 58* 2.0 2.4 83
Two Ocean Plateau 9240 2.0 3.6 56 4.4 3.4 129
Willow Creek 8080 .6 1.0 60* 4.6 4.0 115
Younts Peak 8350 -M 1.4 * -M 2.2 *
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Basin Index (%) 81* 117
MADISON HEADWATERS IN WYOMING
Black Bear 8170 3.2 2.8 114* 6.2 4.2 148
Canyon 7870 1.1 -M * 2.5 -M *
Madison Plateau 7750 1.6 1.2 133* 4.2 3.0 140
West Yellowstone 6700 .7 .0 * 2.9 1.6 181
Whiskey Creek 6800 .7 .3 233* 3.9 2.3 170
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Basin Index (%) 144* 155
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 2.5 2.8 89 3.2 2.6 123
Canyon 7870 1.1 -M * 2.5 -M *
Evening Star 9200 2.5 2.5 100* 6.1 3.8 161
Fisher Creek 9100 2.2 3.0 73* 4.2 3.8 111
Monument Peak 8850 1.9 2.2 86* 4.6 3.0 153
Northeast Entrance 7350 .4 .0 * 2.2 2.2 100
Parker Peak 9400 2.2 2.6 85 4.7 2.8 168
Sylvan Lake 8420 1.5 1.5 100* 5.6 3.5 160
Thumb Divide 7980 1.7 .4 425* 3.1 2.3 135
Two Ocean Plateau 9240 2.0 3.6 56 4.4 3.4 129
White Mill 8700 2.0 2.0 100* 3.5 3.0 117
Wolverine 7650 .7 .0 * 4.3 2.0 215
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Basin Index (%) 95* 142
WIND RIVER
Burroughs Creek 8750 .6 -M * 1.9 -M *
Castle Creek 8400 .7 .1 700* 2.1 1.4 150
Cold Springs 9630 .7 .6 117* 2.6 1.8 144
Deer Park 9700 .9 1.5 60* 3.0 2.4 125
Hobbs Park 10100 3.1 1.8 172 4.4 2.0 220
Kirwin 9550 3.6 1.6 225 5.0 2.1 238
Little Warm 9370 1.2 1.3 92 3.2 1.8 178
South Pass 9040 .5 1.0 50* 2.3 2.0 115
St. Lawrence Alt 8620 .4 -M * 2.5 -M *
Togwotee Pass 9580 1.6 2.6 62 3.2 3.1 103
Townsend Creek 8700 .4 .8 50* 3.6 2.2 164
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Basin Index (%) 112* 156
BIGHORN BASIN
Bald Mtn. 9380 3.2 3.1 103 4.0 3.0 133
Bear Trap Meadow 8200 .7 .6 117* 3.4 1.8 189
Bone Springs Div 9350 3.0 2.4 125 4.8 2.6 185
Grave Springs 8550 .0 .6 0* 2.4 1.9 126
Kirwin 9550 3.6 1.6 225 5.0 2.1 238
Marquette 8760 4.0 1.0 400 7.3 2.2 332
Middle Powder 7760 .2 .7 29* 3.3 2.2 150
Owl Creek 8975 .4 .6 67 2.2 1.3 169
Powder River Pass 9480 .6 1.6 38 3.1 2.4 129
Shell Creek 9580 3.8 2.8 136 4.9 2.5 196
Timber Creek 7950 1.8 .4 450* 5.6 1.8 311
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Basin Index (%) 138 193
SHOSHONE RIVER
Blackwater 9780 4.0 3.0 133 4.8 2.8 171
Evening Star 9200 2.5 2.5 100* 6.1 3.8 161
Marquette 8760 4.0 1.0 400 7.3 2.2 332
Sylvan Lake 8420 1.5 1.5 100* 5.6 3.5 160
Sylvan Road 7120 .9 .3 300* 4.7 2.3 204
Younts Peak 8350 -M 1.4 * -M 2.2 *
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Basin Index (%) 155* 195
POWDER RIVER
Bear Trap Meadow 8200 .7 .6 117* 3.4 1.8 189
Cloud Peak Reservoir 9860 3.4 1.9 179 5.8 2.8 207
Grave Springs 8550 .0 .6 0* 2.4 1.9 126
Hansen Sawmill 8360 .4 .3 133* 2.8 1.9 147
Middle Powder 7760 .2 .7 29* 3.3 2.2 150
Powder River Pass 9480 .6 1.6 38 3.1 2.4 129
Soldier Park 8720 .3 .0 * 4.3 1.8 239
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Basin Index (%) 98* 170
TONGUE RIVER
Big Goose 7990 .6 .6 100* 5.0 2.2 227
Bone Springs Div 9350 3.0 2.4 125 4.8 2.6 185
Burgess Junction 7880 1.5 1.2 125* 5.4 2.5 216
Dome Lake 8880 2.3 1.8 128 5.2 2.6 200
Little Goose 8870 1.8 .2 900* 5.2 2.2 236
Sucker Creek 8880 2.6 1.8 144 6.0 2.6 231
Tie Creek 6870 .8 .1 800* 6.5 2.4 271
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Basin Index (%) 156* 223
BELLE FOURCHE
Blind Park 6890 .3 .2 150* 1.8 1.8 100
Cole Canyon 5910 .2 .0 * 1.6 1.7 94
North Rapid Creek 6130 .0 .0 * 2.5 1.4 179
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Basin Index (%) 250* 120
CHEYENNE RIVER BASIN
Blind Park 6890 .3 .2 150* 1.8 1.8 100
North Rapid Creek 6130 .0 .0 * 2.5 1.4 179
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Basin Index (%) 150* 134
UPPER N. PLATTE
Arapaho Ridge 10976 .4 2.8 14 1.7 3.4 50
Blackhall Mtn 9839 1.2 2.3 52* 3.2 3.8 84
Cinnabar Park 9707 .6 1.4 43* 1.5 2.8 54
Columbine 9167 .2 .4 50* 1.6 3.1 52
Divide Peak 8730 .6 1.0 60* 3.5 3.2 109
Joe Wright 10158 1.0 1.9 53* 3.0 4.0 75
Laprele Creek 8390 .2 .4 50* 2.9 1.6 181
Med Bow 10512 1.9 -M * 2.9 -M *
Never Summer 10323 2.3 2.6 88 2.1 3.1 68
North French Creek 10153 .5 2.4 21* 2.3 3.4 68
Old Battle 9860 .9 2.2 41* 2.7 4.2 64
Rawah 9069 .4 .7 57* 2.6 3.2 81
Sage Creek Basin 7850 .4 .0 * 1.9 2.0 95
Sand Lake 10098 2.4 2.4 100* 2.6 3.2 81
South Brush Creek 8495 .1 .7 14* 1.6 2.2 73
Tower 10620 1.2 2.6 46* 3.2 4.4 73
Webber Springs 9260 .8 1.0 80* 1.9 3.2 59
Whiskey Park 9020 .7 .8 88* 2.3 3.2 72
Willow Creek Pass 9523 1.7 1.6 106 2.2 2.4 92
Zirkel 9338 .8 .4 200* 2.0 3.5 57
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Basin Index (%) 59* 75
SWEETWATER
Deer Park 9700 .9 1.5 60* 3.0 2.4 125
Larsen Creek 9000 -M .0 * 1.8 1.9 95
South Pass 9040 .5 1.0 50* 2.3 2.0 115
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Basin Index (%) 56* 113
LOWER N. PLATTE
Casper Mtn. 7920 1.6 1.0 160* 5.7 2.6 219
Laprele Creek 8390 .2 .4 50* 2.9 1.6 181
Reno Hill 8430 .7 1.0 70* 4.6 2.1 219
Windy Peak 7915 .3 .4 75* 2.0 1.6 125
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Basin Index (%) 100* 192
LARAMIE RIVER
Brooklyn Lake 10250 .4 1.0 40* 1.4 2.4 58
Cinnabar Park 9707 .6 1.4 43* 1.5 2.8 54
Crow Creek 8335 .2 .1 200* 1.9 2.0 95
Deadman Hill 10239 2.1 2.4 88 2.0 2.8 71
Rawah 9069 .4 .7 57* 2.6 3.2 81
Roach 9740 .7 1.2 58* 1.9 2.9 66
Windy Peak 7915 .3 .4 75* 2.0 1.6 125
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Basin Index (%) 65* 75
S. PLATTE
Crow Creek 8335 .2 .1 200* 1.9 2.0 95
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Basin Index (%) 200* 95
LITTLE SNAKE RIVER
Battle Mountain 7498 .0 .0 * 2.1 2.2 95
Divide Peak 8730 .6 1.0 60* 3.5 3.2 109
Elk River 8739 .9 .2 450* 1.8 2.6 69
Elkhead Divide 8800 .6 -M * 2.4 -M *
Little Snake River 8928 .4 .1 400* 2.6 4.5 58
Old Battle 9860 .9 2.2 41* 2.7 4.2 64
Sage Creek Basin 7850 .4 .0 * 1.9 2.0 95
Sandstone RS 8152 .2 .0 * 1.4 2.4 58
Whiskey Park 9020 .7 .8 88* 2.3 3.2 72
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Basin Index (%) 95* 75
UPPER GREEN RIVER
Big Sandy Opening 9080 .7 1.4 50 2.1 1.8 117
Blind Bull Sum 8650 .9 1.4 64* 1.7 2.1 81
East Rim Divide 7930 .0 .2 0* 1.6 1.4 114
Elkhart Park G.S. 9400 .6 1.0 60* 2.6 2.1 124
Gros Ventre Summit 8750 .1 1.6 6 2.6 1.8 144
Gunsight Pass 9820 1.3 .8 162* 3.8 2.3 165
Indian Creek 9425 .7 1.8 39* 2.1 2.5 84
Kendall R.S. 7740 .1 .3 33* 2.2 1.6 138
Larsen Creek 9000 -M .0 * 1.8 1.9 95
Loomis Park 8240 .4 .7 57* 1.8 1.9 95
New Fork Lake 8340 .2 .5 40* .8 1.4 57
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 -M .3 * .9 1.6 56
Spring Creek Divide 9000 .4 1.3 31* 2.3 2.6 88
Triple Peak 8500 .7 1.2 58* 2.0 2.4 83
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Basin Index (%) 50* 103
LOWER GREEN RIVER
Blacks Fork Jct 8869 .8 .0 * 2.0 1.8 111
Buck Pasture 9632 .4 -M * 2.4 -M *
EF Blacks Fork GS 9360 .2 .0 * 2.0 2.0 100
Hams Fork 7840 -M .1 * .8 1.6 50
Henrys Fork 10182 -M -M * 2.7 -M *
Hewinta 9500 -M .0 * 2.1 2.2 95
Hickerson Park 9122 .5 .0 * 3.0 1.8 167
Hole-in-Rock 9168 .0 .2 0* 2.0 1.8 111
Indian Creek 9425 .7 1.8 39* 2.1 2.5 84
Kelley R.S. 8180 .3 .6 50* 1.6 2.2 73
Spirit Lk 10235 .4 .9 44* 3.2 2.4 133
Steel Creek Park 10158 .8 1.4 57* 2.6 2.6 100
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Basin Index (%) 76* 102
UPPER BEAR RIVER
Bear River RS 8777 .4 .0 * 2.0 1.7 118
Bug Lake 7987 1.1 .4 275* 2.4 2.0 120
Burts Miller Ranch 8000 .2 .0 * 1.8 1.3 138
Chalk Creek #1 9171 1.0 1.5 67* 3.0 3.2 94
Giveout 6930 -M .0 * .9 1.7 53
Hayden Fork 9130 .5 .0 * 3.1 2.8 111
Kelley R.S. 8180 .3 .6 50* 1.6 2.2 73
Lily Lake 9133 .4 .6 67* 2.5 2.4 104
Monte Cristo 8932 .6 .4 150* 2.7 2.8 96
Salt River Summit 7640 .2 .2 100* .8 1.9 42
Spring Creek Divide 9000 .4 1.3 31* 2.3 2.6 88
Trial Lake 9992 .5 .8 62* 2.5 2.7 93
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Basin Index (%) 97* 94
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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.