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 THURSDAY: JANUARY 24 , 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 9.0 10.3 87 11.0 13.1 84
Black Bear 8170 17.8 22.6 79 19.4 23.4 83
Blind Bull Sum 8650 10.8 12.9 84 9.1 12.1 75
Cottonwood Creek 7670 11.5 11.6 99 14.1 14.8 95
East Rim Divide 7930 5.2 6.4 81 5.8 7.2 81
Grand Targhee 9260 25.9 22.3 116 20.5 19.1 107
Granite Creek 6770 8.6 9.3 92 10.7 12.7 84
Grassy Lake 7265 15.4 18.3 84 19.1 22.3 86
Gros Ventre Summit 8750 4.7 7.8 60 5.6 7.7 73
Gunsight Pass 9820 -M 7.8 * -M 8.4 *
Lewis Lake Divide 7850 14.1 18.0 78 18.3 21.7 84
Phillips Bench 8200 11.9 15.8 75 15.3 17.0 90
Salt River Summit 7640 6.3 7.2 88 8.6 9.9 87
Snake River Station 6920 9.3 9.6 97 14.1 14.4 98
Spring Creek Divide 9000 11.9 12.9 92 13.5 14.4 94
Thumb Divide 7980 6.5 8.8 74 8.6 11.5 75
Togwotee Pass 9580 13.0 13.6 96 13.8 14.9 93
Two Ocean Plateau 9240 15.0 16.0 94 12.9 16.2 80
Willow Creek 8080 14.4 16.0 90 18.8 20.2 93
Younts Peak 8350 -M 8.8 * -M 9.9 *
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Basin Index (%) 88 88
MADISON-GALLATIN
Black Bear 8170 17.8 22.6 79 19.4 23.4 83
Canyon 7870 6.4 7.7 83 8.0 10.1 79
Madison Plateau 7750 10.2 13.6 75 11.4 16.2 70
West Yellowstone 6700 5.9 6.7 88 7.5 8.9 84
Whiskey Creek 6800 6.7 9.2 73 7.5 12.5 60
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Basin Index (%) 79 76
YELLOWSTONE
Beartooth Lake 9360 -M 13.0 * -M 12.0 *
Burnt Mtn 5880 4.5 2.4 188 8.1 7.6 107
Canyon 7870 6.4 7.7 83 8.0 10.1 79
Cole Creek 7850 10.0 7.7 130 7.6 7.3 104
Evening Star 9200 14.2 14.8 96 17.1 16.8 102
Fisher Creek 9100 14.1 19.6 72 17.7 19.4 91
Northeast Entrance 7350 5.7 6.0 95 8.1 7.8 104
Parker Peak 9400 12.9 12.1 107 13.7 10.7 128
Sylvan Lake 8420 11.8 12.0 98 16.9 14.0 121
Thumb Divide 7980 6.5 8.8 74 8.6 11.5 75
Two Ocean Plateau 9240 15.0 16.0 94 12.9 16.2 80
White Mill 8700 10.5 13.7 77 9.4 14.5 65
Wolverine 7650 6.2 6.5 95 7.4 7.8 95
Younts Peak 8350 -M 8.8 * -M 9.9 *
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Basin Index (%) 93 94
WIND RIVER
Burroughs Creek 8750 4.3 -M * 5.9 -M *
Castle Creek 8400 1.9 -M * 3.2 -M *
Cold Springs 9630 3.9 4.2 93 4.2 5.9 71
Deer Park 9700 8.0 8.2 98 8.2 11.7 70
Hobbs Park 10100 7.0 7.7 91 5.3 7.4 72
Kirwin 9550 4.7 5.4 87 5.0 6.9 72
Little Warm 9370 4.3 5.9 73 4.9 7.7 64
Owl Creek 8975 -M 3.0 * -M 3.4 *
South Pass 9040 6.7 8.2 82 6.3 10.3 61
St. Lawrence Alt 8620 2.5 3.8 66 4.9 5.1 96
Togwotee Pass 9580 13.0 13.6 96 13.8 14.9 93
Townsend Creek 8700 5.1 4.8 106 5.9 6.8 87
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Basin Index (%) 89 76
BIGHORN BASIN
Bald Mtn. 9380 10.9 10.3 106 6.8 10.1 67
Bear Trap Meadow 8200 5.2 3.2 162 4.6 4.9 94
Bone Springs Div 9350 7.8 9.4 83 6.7 9.1 74
Grave Springs 8550 4.3 4.7 91 5.6 6.1 92
Kirwin 9550 4.7 5.4 87 5.0 6.9 72
Marquette 8760 5.2 -M * 6.4 -M *
Middle Powder 7760 6.0 6.0 100 3.9 7.0 56
Owl Creek 8975 -M 3.0 * -M 3.4 *
Powder River Pass 9480 6.0 6.0 100 5.3 7.4 72
Shell Creek 9580 -M 8.7 * -M 8.3 *
Timber Creek 7950 -M 2.9 * -M 4.3 *
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Basin Index (%) 100 74
SHOSHONE RIVER
Blackwater 9780 13.1 13.4 98 13.9 12.5 111
Evening Star 9200 14.2 14.8 96 17.1 16.8 102
Marquette 8760 5.2 -M * 6.4 -M *
Sylvan Lake 8420 11.8 12.0 98 16.9 14.0 121
Sylvan Road 7120 7.1 7.4 96 10.1 11.2 90
Younts Peak 8350 -M 8.8 * -M 9.9 *
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Basin Index (%) 97 106
POWDER RIVER
Bear Trap Meadow 8200 5.2 3.2 162 4.6 4.9 94
Cloud Peak Reservoir 9860 7.3 7.8 94 6.9 7.5 92
Grave Springs 8550 4.3 4.7 91 5.6 6.1 92
Hansen Sawmill 8360 3.4 3.9 87 4.9 4.7 104
Middle Powder 7760 6.0 6.0 100 3.9 7.0 56
Powder River Pass 9480 6.0 6.0 100 5.3 7.4 72
Soldier Park 8720 2.5 -M * 4.7 -M *
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Basin Index (%) 102 83
TONGUE RIVER
Big Goose 7990 5.0 4.5 111 6.8 6.2 110
Bone Springs Div 9350 7.8 9.4 83 6.7 9.1 74
Burgess Junction 7880 5.3 6.3 84 5.5 7.1 77
Dome Lake 8880 3.7 6.5 57 4.8 7.9 61
Little Goose 8870 6.1 -M * 5.4 -M *
Sucker Creek 8880 7.0 6.7 104 6.1 8.2 74
Tie Creek 6870 2.6 3.1 84 6.8 6.8 100
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Basin Index (%) 86 81
BELLE FOURCHE
Blind Park 6890 4.0 4.1 98 4.0 7.3 55
Cole Canyon 5910 3.9 3.0 130 6.9 5.5 125
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Basin Index (%) 111 85
CHEYENNE RIVER BASIN
Blind Park 6890 4.0 4.1 98 4.0 7.3 55
North Rapid Creek 6130 3.5 4.0 88 4.0 5.9 68
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Basin Index (%) 93 61
UPPER N. PLATTE
Arapaho Ridge 10960 13.8 11.8 117 14.9 13.3 112
Blackhall Mtn 9820 17.0 -M * 19.6 -M *
Columbine 9160 14.6 13.6 107 16.0 15.1 106
Divide Peak 8880 11.6 11.4 102 14.1 12.9 109
Joe Wright 10120 12.3 12.3 100 18.7 15.0 125
Laprele Creek 8375 7.7 5.3 145 8.5 7.1 120
Med Bow 10500 21.7 -M * 21.4 -M *
Never Summer 10280 12.1 11.3 107 11.6 -M *
North French Creek 10130 17.2 15.0 115 18.8 15.7 120
Old Battle 10000 19.6 17.6 111 21.3 20.9 102
Rawah 9020 6.5 5.8 112 9.2 8.7 106
Sage Creek Basin 7850 11.1 7.6 146 10.5 9.1 115
Sand Lake 10050 16.0 15.5 103 13.6 14.1 96
South Brush Creek 8440 6.7 6.8 99 7.5 8.9 84
Tower 10500 27.4 25.3 108 25.2 23.7 106
Webber Springs 9250 13.5 12.7 106 17.4 15.9 109
Whiskey Park 8950 15.0 14.9 101 18.9 16.5 115
Willow Creek Pass 9540 8.4 6.9 122 10.3 7.8 132
Zirkel 9340 15.4 16.8 92 20.1 17.4 116
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Basin Index (%) 109 110
SWEETWATER
Deer Park 9700 8.0 8.2 98 8.2 11.7 70
Larsen Creek 9000 4.8 6.7 72 8.1 -M *
South Pass 9040 6.7 8.2 82 6.3 10.3 61
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Basin Index (%) 84 66
LOWER N. PLATTE
Casper Mtn. 7900 8.7 7.2 121 7.2 8.6 84
Laprele Creek 8375 7.7 5.3 145 8.5 7.1 120
Reno Hill 8400 9.0 7.3 123 9.8 8.5 115
Windy Peak 7900 6.0 3.9 154 5.9 6.1 97
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Basin Index (%) 132 104
LARAMIE RIVER
Brooklyn Lake 10240 12.7 11.5 110 14.6 12.0 122
Cinnabar Park 9574 11.9 12.4 96 14.4 14.8 97
Crow Creek 8330 2.2 5.5 40 5.5 6.3 87
Deadman Hill 10220 10.6 9.0 118 10.1 9.6 105
Rawah 9020 6.5 5.8 112 9.2 8.7 106
Roach 9700 8.4 9.5 88 10.7 11.1 96
Windy Peak 7900 6.0 3.9 154 5.9 6.1 97
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Basin Index (%) 101 103
S. PLATTE
Black Mountain 8920 5.3 -M * 6.5 -M *
Crow Creek 8330 2.2 5.5 40 5.5 6.3 87
Deadman Hill 10220 10.6 9.0 118 10.1 9.6 105
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Basin Index (%) 88 98
LITTLE SNAKE RIVER
Battle Mountain 7440 8.1 6.5 125 9.9 9.1 109
Divide Peak 8880 11.6 11.4 102 14.1 12.9 109
Elk River 8700 10.5 10.1 104 10.4 11.9 87
Little Snake River 8915 14.2 13.8 103 23.1 19.3 120
Old Battle 10000 19.6 17.6 111 21.3 20.9 102
Sage Creek Basin 7850 11.1 7.6 146 10.5 9.1 115
Sandstone RS 8150 9.8 7.4 132 11.0 11.2 98
Whiskey Park 8950 15.0 14.9 101 18.9 16.5 115
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Basin Index (%) 112 107
UPPER GREEN RIVER
Big Sandy Opening 9080 6.7 7.3 92 7.6 7.9 96
Blind Bull Sum 8650 10.8 12.9 84 9.1 12.1 75
East Rim Divide 7930 5.2 6.4 81 5.8 7.2 81
Elkhart Park G.S. 9400 6.1 7.0 87 7.2 8.0 90
Gros Ventre Summit 8750 4.7 7.8 60 5.6 7.7 73
Gunsight Pass 9820 -M 7.8 * -M 8.4 *
Kendall R.S. 7740 5.7 7.2 79 6.5 8.6 76
Loomis Park 8240 7.5 9.0 83 8.9 10.6 84
New Fork Lake 8340 5.0 6.4 78 5.1 6.6 77
Pocket Creek 9360 8.3 -M * 9.2 -M *
Snyder Basin 8060 6.4 6.9 93 8.2 8.6 95
Spring Creek Divide 9000 11.9 12.9 92 13.5 14.4 94
Triple Peak 8500 11.7 12.0 98 13.9 15.0 93
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Basin Index (%) 85 86
LOWER GREEN RIVER
Blacks Fork Jct 8869 5.4 -M * 8.0 -M *
Buck Pasture 9632 9.2 -M * 12.0 -M *
EF Blacks Fork GS 9360 6.8 -M * 7.0 -M *
Hams Fork 7840 5.8 6.7 87 6.9 6.8 101
Hewinta 9500 6.0 5.1 118 9.0 8.1 111
Hickerson Park 9122 -M 3.4 * -M 5.8 *
Hole-in-Rock 9168 3.5 3.7 95 6.5 5.5 118
Indian Creek 9425 -M 13.6 * -M 13.1 *
Kelley R.S. 8180 7.7 8.4 92 8.7 10.8 81
Spirit Lk 10235 8.1 -M * 7.6 -M *
Steel Creek Park 10158 9.1 7.9 115 11.1 9.3 119
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Basin Index (%) 101* 104*
UPPER BEAR RIVER
Bear River RS 8777 5.5 -M * 8.7 -M *
Bug Lake 7987 9.8 9.4 104 13.0 11.6 112
Burts Miller Ranch 8000 3.2 -M * 5.2 -M *
Chalk Creek #1 9171 11.8 12.4 95 16.4 14.6 112
Hayden Fork 9130 8.9 8.0 111 13.7 12.3 111
Kelley R.S. 8180 7.7 8.4 92 8.7 10.8 81
Lily Lake 9133 7.3 6.9 106 9.8 10.0 98
Monte Cristo 8932 14.0 14.4 97 15.6 15.3 102
Salt River Summit 7640 6.3 7.2 88 8.6 9.9 87
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Basin Index (%) 99 102
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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.