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: NOVEMBER 11 , 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 .8 1.2 67* 4.7 3.4 138
Blind Bull Sum 8650 2.4 2.7 89 2.8 3.2 88
Cottonwood Creek 7670 1.3 2.2 59 5.2 4.6 113
East Rim Divide 7930 .1 .6 17* 2.0 2.1 95
Grand Targhee 9260 7.0 6.5 108 8.3 6.6 126
Granite Creek 6770 .1 .8 12* 2.8 3.2 88
Grassy Lake 7265 1.2 2.2 55* 6.7 5.2 129
Gros Ventre Summit 8750 1.0 2.2 45 3.2 2.5 128
Gunsight Pass 9820 2.0 1.8 111 4.8 3.0 160
Lewis Lake Divide 7850 3.6 2.3 157* 7.8 5.2 150
Loomis Park 8240 1.0 1.2 83* 2.5 2.8 89
Phillips Bench 8200 2.0 2.0 100* 5.0 4.4 114
Salt River Summit 7640 .1 .6 17* 1.1 2.6 42
Snake River Station 6920 .7 1.0 70* 5.5 3.6 153
Somsen Ranch 6800 .4 .6 67* 4.4 3.1 142
Spring Creek Divide 9000 1.5 2.6 58 3.4 3.7 92
Thumb Divide 7980 2.7 1.4 193* 4.5 3.2 141
Togwotee Pass 9580 3.1 3.8 82 4.5 4.3 105
Triple Peak 8500 1.9 2.4 79 3.6 3.9 92
Two Ocean Plateau 9240 4.8 4.9 98 6.9 4.4 157
Willow Creek 8080 1.7 2.4 71* 6.5 5.8 112
Younts Peak 8350 -M 2.0 * -M 2.8 *
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Basin Index (%) 87* 119
MADISON HEADWATERS IN WYOMING
Black Bear 8170 4.7 4.4 107 8.6 6.0 143
Canyon 7870 1.6 -M * 3.6 -M *
Madison Plateau 7750 2.2 2.2 100* 6.4 4.3 149
West Yellowstone 6700 .7 .6 117* 4.2 2.4 175
Whiskey Creek 6800 .8 1.3 62* 5.9 3.2 184
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Basin Index (%) 99* 158
YELLOWSTONE HEADWATERS IN WYOMING
Beartooth Lake 9360 3.7 3.8 97 4.3 3.4 126
Canyon 7870 1.6 -M * 3.6 -M *
Evening Star 9200 5.2 3.4 153 9.4 5.6 168
Fisher Creek 9100 4.5 4.6 98 6.9 5.8 119
Monument Peak 8850 3.3 3.1 106 6.1 4.6 133
Northeast Entrance 7350 .3 .4 75* 3.3 2.8 118
Parker Peak 9400 4.5 3.6 125 7.1 3.8 187
Sylvan Lake 8420 3.8 2.8 136 8.6 5.0 172
Thumb Divide 7980 2.7 1.4 193* 4.5 3.2 141
Two Ocean Plateau 9240 4.8 4.9 98 6.9 4.4 157
White Mill 8700 3.8 3.0 127 5.2 4.4 118
Wolverine 7650 1.3 .6 217* 5.7 2.8 204
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Basin Index (%) 120 148
WIND RIVER
Burroughs Creek 8750 1.3 -M * 2.7 -M *
Castle Creek 8400 1.0 .4 250* 2.5 1.8 139
Cold Springs 9630 1.0 1.2 83 3.1 2.4 129
Deer Park 9700 1.5 2.0 75 3.5 3.3 106
Hobbs Park 10100 3.8 2.2 173 5.0 3.2 156
Kirwin 9550 4.3 2.4 179 5.9 2.7 219
Little Warm 9370 2.1 1.6 131 4.2 2.5 168
South Pass 9040 .9 1.8 50 2.6 2.6 100
St. Lawrence Alt 8620 .0 -M * 2.7 -M *
Togwotee Pass 9580 3.1 3.8 82 4.5 4.3 105
Townsend Creek 8700 .5 1.4 36 3.8 2.6 146
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Basin Index (%) 108 138
BIGHORN BASIN
Bald Mtn. 9380 4.1 4.1 100 4.7 3.8 124
Bear Trap Meadow 8200 .5 1.0 50 3.3 2.2 150
Bone Springs Div 9350 3.6 3.3 109 5.4 3.4 159
Grave Springs 8550 .0 1.0 0 2.3 2.3 100
Kirwin 9550 4.3 2.4 179 5.9 2.7 219
Marquette 8760 4.2 1.2 350 7.4 2.6 285
Middle Powder 7760 .5 1.4 36 3.3 2.6 127
Owl Creek 8975 .3 1.1 27 2.2 1.9 116
Powder River Pass 9480 .8 2.3 35 3.4 3.0 113
Shell Creek 9580 4.4 3.6 122 5.5 3.3 167
Timber Creek 7950 1.8 .8 225 5.6 2.2 255
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Basin Index (%) 110 163
SHOSHONE RIVER
Blackwater 9780 6.1 4.2 145 6.6 3.8 174
Evening Star 9200 5.2 3.4 153 9.4 5.6 168
Marquette 8760 4.2 1.2 350 7.4 2.6 285
Sylvan Lake 8420 3.8 2.8 136 8.6 5.0 172
Sylvan Road 7120 1.2 1.1 109* 6.8 3.5 194
Younts Peak 8350 -M 2.0 * -M 2.8 *
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Basin Index (%) 161 189
POWDER RIVER
Bear Trap Meadow 8200 .5 1.0 50 3.3 2.2 150
Cloud Peak Reservoir 9860 3.7 2.4 154 6.1 3.3 185
Grave Springs 8550 .0 1.0 0 2.3 2.3 100
Hansen Sawmill 8360 .6 1.0 60 2.8 2.3 122
Middle Powder 7760 .5 1.4 36 3.3 2.6 127
Powder River Pass 9480 .8 2.3 35 3.4 3.0 113
Soldier Park 8720 .0 .6 0* 4.4 2.2 200
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Basin Index (%) 63 143
TONGUE RIVER
Big Goose 7990 .8 1.0 80 5.1 2.4 212
Bone Springs Div 9350 3.6 3.3 109 5.4 3.4 159
Burgess Junction 7880 1.7 1.6 106 5.6 3.0 187
Dome Lake 8880 2.3 2.2 105 5.4 3.1 174
Little Goose 8870 1.8 .8 225* 5.3 2.6 204
Sucker Creek 8880 3.0 2.4 125 6.4 3.6 178
Tie Creek 6870 .3 .4 75* 6.7 3.0 223
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Basin Index (%) 115 189
BELLE FOURCHE
Blind Park 6890 .5 1.0 50 2.0 2.6 77
Cole Canyon 5910 .1 .3 33* 1.7 2.1 81
North Rapid Creek 6130 .1 .7 14 2.7 2.0 135
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Basin Index (%) 35 96
CHEYENNE RIVER BASIN
Blind Park 6890 .5 1.0 50 2.0 2.6 77
North Rapid Creek 6130 .1 .7 14 2.7 2.0 135
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Basin Index (%) 35 102
UPPER N. PLATTE
Arapaho Ridge 10976 .6 3.4 18 2.0 4.4 45
Blackhall Mtn 9839 1.4 3.7 38 3.5 5.0 70
Cinnabar Park 9707 .8 2.5 32 1.7 3.5 49
Columbine 9167 .0 1.6 0* 1.7 4.2 40
Divide Peak 8730 .4 2.2 18 3.7 4.4 84
Joe Wright 10158 1.2 3.4 35 3.4 5.2 65
Laprele Creek 8390 .2 1.0 20 3.0 2.4 125
Med Bow 10512 2.1 -M * 3.2 -M *
Never Summer 10323 2.6 3.0 87 2.4 3.7 65
North French Creek 10153 .8 3.6 22 2.6 4.6 57
Old Battle 9860 1.0 4.3 23 2.7 5.5 49
Rawah 9069 .1 1.5 7 2.8 3.6 78
Sage Creek Basin 7850 .2 .9 22* 2.1 2.8 75
Sand Lake 10098 2.6 4.2 62 2.8 4.4 64
South Brush Creek 8495 -M 1.2 * 1.8 3.0 60
Tower 10620 1.4 6.1 23 3.5 6.8 51
Webber Springs 9260 .8 2.3 35 2.0 4.6 43
Whiskey Park 9020 .7 2.2 32* 2.6 4.4 59
Willow Creek Pass 9523 2.0 2.3 87 2.6 2.9 90
Zirkel 9338 .2 1.6 12* 2.1 5.0 42
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Basin Index (%) 34 61
SWEETWATER
Deer Park 9700 1.5 2.0 75 3.5 3.3 106
Larsen Creek 9000 .3 .2 150* 2.8 2.3 122
South Pass 9040 .9 1.8 50 2.6 2.6 100
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Basin Index (%) 68 109
LOWER N. PLATTE
Casper Mtn. 7920 1.4 1.7 82 6.0 3.2 188
Laprele Creek 8390 .2 1.0 20 3.0 2.4 125
Reno Hill 8430 .6 2.1 29 4.7 3.0 157
Windy Peak 7915 .3 .7 43* 2.0 2.2 91
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Basin Index (%) 45 145
LARAMIE RIVER
Brooklyn Lake 10250 .2 2.2 9* 1.5 3.4 44
Cinnabar Park 9707 .8 2.5 32 1.7 3.5 49
Crow Creek 8335 .0 .6 0* 2.0 2.3 87
Deadman Hill 10239 2.5 2.8 89 2.4 3.6 67
Rawah 9069 .1 1.5 7 2.8 3.6 78
Roach 9740 .7 2.4 29 2.0 3.6 56
Windy Peak 7915 .3 .7 43* 2.0 2.2 91
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Basin Index (%) 36 65
S. PLATTE
Crow Creek 8335 .0 .6 0* 2.0 2.3 87
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Basin Index (%) 0* 87
LITTLE SNAKE RIVER
Battle Mountain 7498 -M .6 * 2.3 3.2 72
Divide Peak 8730 .4 2.2 18 3.7 4.4 84
Elk River 8739 .5 .8 62* 2.0 3.4 59
Elkhead Divide 8800 -M -M * 2.1 -M *
Little Snake River 8928 .0 1.6 0* 2.8 5.1 55
Old Battle 9860 1.0 4.3 23 2.7 5.5 49
Sage Creek Basin 7850 .2 .9 22* 2.1 2.8 75
Sandstone RS 8152 .1 .9 11* 1.6 3.4 47
Whiskey Park 9020 .7 2.2 32* 2.6 4.4 59
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Basin Index (%) 22* 61
UPPER GREEN RIVER
Big Sandy Opening 9080 1.7 1.9 89 3.0 2.5 120
Blind Bull Sum 8650 2.4 2.7 89 2.8 3.2 88
East Rim Divide 7930 .1 .6 17* 2.0 2.1 95
Elkhart Park G.S. 9400 .9 1.6 56 3.0 2.6 115
Gros Ventre Summit 8750 1.0 2.2 45 3.2 2.5 128
Gunsight Pass 9820 2.0 1.8 111 4.8 3.0 160
Indian Creek 9425 1.3 2.4 54* 2.7 3.4 79
Kendall R.S. 7740 -M .6 * 2.8 2.4 117
Larsen Creek 9000 .3 .2 150* 2.8 2.3 122
Loomis Park 8240 1.0 1.2 83* 2.5 2.8 89
New Fork Lake 8340 .4 .8 50* 1.0 2.0 50
Pocket Creek 9360 -M -M * -M -M *
Snider Basin 8060 .0 .9 0* 1.5 2.0 75
Spring Creek Divide 9000 1.5 2.6 58 3.4 3.7 92
Triple Peak 8500 1.9 2.4 79 3.6 3.9 92
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Basin Index (%) 68 102
LOWER GREEN RIVER
Blacks Fork Jct 8869 .7 .1 700* 2.5 2.2 114
Buck Pasture 9632 .6 -M * 2.5 -M *
EF Blacks Fork GS 9360 .2 .6 33* 2.3 2.5 92
Hams Fork 7840 -M .4 * 1.2 2.2 55
Henrys Fork 10182 -M -M * 3.0 -M *
Hewinta 9500 .6 .4 150* 2.4 3.0 80
Hickerson Park 9122 1.0 .6 167* 3.6 2.6 138
Hole-in-Rock 9168 .8 .8 100 2.5 2.6 96
Indian Creek 9425 1.3 2.4 54* 2.7 3.4 79
Kelley R.S. 8180 .4 1.2 33* 2.0 3.0 67
Spirit Lk 10235 .7 1.8 39 3.8 3.8 100
Steel Creek Park 10158 1.2 2.0 60 3.0 3.4 88
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Basin Index (%) 70* 91
UPPER BEAR RIVER
Bear River RS 8777 .4 .2 200* 2.7 2.3 117
Bug Lake 7987 1.0 1.0 100* 3.3 2.9 114
Burts Miller Ranch 8000 .4 .0 * 2.4 1.6 150
Chalk Creek #1 9171 1.3 2.4 54 3.7 4.4 84
Giveout 6930 -M .2 * 1.4 2.4 58
Hayden Fork 9130 .4 .8 50* 3.6 3.8 95
Kelley R.S. 8180 .4 1.2 33* 2.0 3.0 67
Lily Lake 9133 .4 1.1 36* 3.0 3.6 83
Monte Cristo 8932 1.6 1.9 84* 3.8 3.8 100
Salt River Summit 7640 .1 .6 17* 1.1 2.6 42
Spring Creek Divide 9000 1.5 2.6 58 3.4 3.7 92
Trial Lake 9992 .8 2.2 36* 2.6 3.4 76
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Basin Index (%) 59* 88
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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.
