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 SUNDAY: AUGUST 31 , 2014
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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 7030 .0 .0 * 36.4 30.3 120
BLACK BEAR 8170 .2 .0 * 57.6 52.7 109
BLIND BULL SUM 8650 .0 .0 * 34.2 29.0 118
COTTONWOOD CREEK 7670 .2 .0 * 49.0 36.8 133
EAST RIM DIVIDE 7930 .0 .0 * 23.5 18.6 126
GRAND TARGHEE 9260 .0 .0 * 53.7 45.5 118
GRANITE CREEK 6770 .0 .0 * 34.2 28.1 122
GRASSY LAKE 7265 .2 .0 * 56.0 49.9 112
GROS VENTRE SUMMIT 8750 .0 .0 * 24.3 21.7 112
GUNSIGHT PASS 9820 .0 .0 * 31.7 23.6 134
LEWIS LAKE DIVIDE 7850 .0 .0 * 57.6 48.6 119
PHILLIPS BENCH 8200 .0 .0 * 47.0 39.4 119
SALT RIVER SUMMIT 7760 .0 .0 * 28.1 25.0 112
SNAKE RIVER STATION 6920 .0 .0 * 39.7 33.2 120
SPRING CREEK DIVIDE 9000 .2 .0 * 43.2 33.8 128
THUMB DIVIDE 7980 .1 .0 * 30.7 28.3 108
TOGWOTEE PASS 9580 .2 .0 * 43.8 36.4 120
TWO OCEAN PLATEAU 9240 -M .0 * 47.9 40.9 117
WILLOW CREEK 8380 .2 .0 * 57.6 49.2 117
YOUNTS PEAK 8350 -M .0 * -M 26.9 *
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Basin Index (%) * 119
MADISON-GALLATIN
BLACK BEAR 8170 .2 .0 * 57.6 52.7 109
CANYON 7870 .0 .0 * -M 26.2 *
MADISON PLATEAU 7750 .1 .0 * -M 38.7 *
WEST YELLOWSTONE 6700 .1 .0 * -M 22.9 *
WHISKEY CREEK 6800 .0 .0 * 33.3 31.1 107
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Basin Index (%) * 108*
YELLOWSTONE
BEARTOOTH LAKE 9360 .0 .0 * 42.9 31.2 138
BURNT MTN 5880 .1 .0 * 32.2 27.6 117
CANYON 7870 .0 .0 * -M 26.2 *
COLE CREEK 7850 .0 .0 * 30.3 28.6 106
EVENING STAR 9200 .1 .0 * 54.3 42.3 128
FISHER CREEK 9100 .0 .0 * 56.8 49.0 116
NORTHEAST ENTRANCE 7350 .0 .0 * 26.4 23.2 114
PARKER PEAK 9400 .2 .0 * 44.0 29.9 147
SYLVAN LAKE 8420 .1 .0 * 44.0 35.8 123
THUMB DIVIDE 7980 .1 .0 * 30.7 28.3 108
TWO OCEAN PLATEAU 9240 -M .0 * 47.9 40.9 117
WHITE MILL 8700 .1 .0 * 43.7 38.3 114
WOLVERINE 7650 -M .0 * 27.5 21.8 126
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Basin Index (%) * 121
WIND RIVER
BURROUGHS CREEK 8750 .1 .0 * 3.6 26.3 14
CASTLE CREEK 8400 .0 -M * 21.5 -M *
COLD SPRINGS 9630 .0 .0 * 21.9 20.0 110
DEER PARK 9700 .0 .0 * 30.0 32.9 91
HOBBS PARK 10100 .0 .0 * 24.5 25.8 95
KIRWIN 9550 .1 .0 * 27.8 23.9 116
LITTLE WARM 9370 .1 .0 * 25.6 23.7 108
OWL CREEK 8975 .1 .0 * 13.4 15.6 86
SOUTH PASS 9040 .0 .0 * 21.7 27.9 78
ST. LAWRENCE ALT 8620 .0 .0 * 16.0 18.9 85
TOGWOTEE PASS 9580 .2 .0 * 43.8 36.4 120
TOWNSEND CREEK 8700 .2 .0 * 18.5 22.7 81
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Basin Index (%) * 90
BIGHORN BASIN
BALD MTN. 9380 .1 .0 * 33.5 29.7 113
BEAR TRAP MEADOW 8200 .0 .0 * 24.2 18.8 129
BONE SPRINGS DIV 9350 .1 .0 * 30.3 28.7 106
GRAVE SPRINGS 8550 .0 .0 * 22.2 21.1 105
KIRWIN 9550 .1 .0 * 27.8 23.9 116
MARQUETTE 8760 .0 -M * 24.0 -M *
MIDDLE POWDER 7760 .0 .0 * 29.1 22.7 128
OWL CREEK 8975 .1 .0 * 13.4 15.6 86
POWDER RIVER PASS 9480 .0 .0 * 29.5 24.6 120
SHELL CREEK 9580 .0 .0 * 29.6 25.9 114
TIMBER CREEK 7950 .1 .0 * 20.8 19.1 109
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Basin Index (%) * 113
SHOSHONE RIVER
BLACKWATER 9780 .2 .0 * 42.9 33.8 127
EVENING STAR 9200 .1 .0 * 54.3 42.3 128
MARQUETTE 8760 .0 -M * 24.0 -M *
SYLVAN ROAD 7120 .0 .0 * 32.9 26.5 124
YOUNTS PEAK 8350 -M .0 * -M 26.9 *
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Basin Index (%) * 127
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 24.2 18.8 129
CLOUD PEAK RESERVOIR 9860 .0 .0 * 34.9 27.9 125
GRAVE SPRINGS 8550 .0 .0 * 22.2 21.1 105
HANSEN SAWMILL 8360 .1 .0 * 23.8 20.1 118
MIDDLE POWDER 7760 .0 .0 * 29.1 22.7 128
POWDER RIVER PASS 9480 .0 .0 * 29.5 24.6 120
SOLDIER PARK 8720 .0 -M * 24.2 -M *
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Basin Index (%) * 121
TONGUE RIVER
BIG GOOSE 7990 .0 .0 * 25.7 22.3 115
BONE SPRINGS DIV 9350 .1 .0 * 30.3 28.7 106
BURGESS JUNCTION 7880 .1 .0 * 25.5 23.5 109
DOME LAKE 8880 .0 .0 * 31.1 25.9 120
LITTLE GOOSE 8870 .1 -M * 31.3 -M *
SUCKER CREEK 8880 .1 .0 * 31.5 27.5 115
TIE CREEK 6870 .1 .0 * 26.4 24.6 107
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Basin Index (%) * 112
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 25.9 23.7 109
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Basin Index (%) * 109
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 * 29.9 25.8 116
NORTH RAPID CREEK 6130 .0 .0 * 30.9 25.2 123
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Basin Index (%) * 119
UPPER N. PLATTE
ARAPAHO RIDGE 10960 .1 .0 * 42.7 35.7 120
BLACKHALL MTN 9820 .0 -M * 50.5 -M *
COLUMBINE 9160 .0 .0 * 47.9 36.1 133
DIVIDE PEAK 8880 .0 .0 * 34.9 31.6 110
JOE WRIGHT 10120 .0 .0 * 51.6 41.3 125
LAPRELE CREEK 8375 .0 .0 * 21.5 22.7 95
MED BOW 10500 -M -M * 55.8 -M *
NORTH FRENCH CREEK 10130 -M .0 * 50.6 40.9 124
NEVER SUMMER 10280 .0 .0 * 38.6 -M *
OLD BATTLE 10000 .1 .0 * 52.3 48.8 107
RAWAH 9020 .0 .0 * 32.8 25.0 131
SAGE CREEK BASIN 7850 .1 .0 * 20.0 21.3 94
SAND LAKE 10050 .1 .0 * 48.1 38.8 124
SOUTH BRUSH CREEK 8440 .1 .0 * 23.6 25.4 93
TOWER 10500 .0 .0 * 68.3 55.4 123
WEBBER SPRINGS 9250 .0 .0 * 43.8 37.9 116
WILLOW CREEK PASS 9540 .0 .0 * 29.6 24.1 123
ZIRKEL 9340 .0 .0 * 55.4 40.4 137
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Basin Index (%) * 119
SWEETWATER
DEER PARK 9700 .0 .0 * 30.0 32.9 91
LARSEN CREEK 9000 .0 .0 * 22.5 -M *
SOUTH PASS 9040 .0 .0 * 21.7 27.9 78
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Basin Index (%) * 85
LOWER N. PLATTE
CASPER MTN. 7900 .0 .0 * 24.6 26.2 94
LAPRELE CREEK 8375 .0 .0 * 21.5 22.7 95
RENO HILL 8400 .1 .0 * 32.1 27.0 119
WINDY PEAK 7900 .0 .0 * 24.2 21.4 113
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Basin Index (%) * 105
LARAMIE RIVER
BROOKLYN LAKE 10240 .1 .0 * 43.1 33.6 128
CINNABAR PARK 9574 .1 .0 * 42.0 35.7 118
CROW CREEK 8330 .0 .0 * 25.3 24.0 105
DEADMAN HILL 10220 .0 .0 * 38.2 29.1 131
RAWAH 9020 .0 .0 * 32.8 25.0 131
ROACH 9700 .1 .0 * 39.6 31.1 127
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Basin Index (%) * 124
S. PLATTE
BLACK MOUNTAIN 8920 .0 -M * 26.4 -M *
CROW CREEK 8330 .0 .0 * 25.3 24.0 105
DEADMAN HILL 10220 .0 .0 * 38.2 29.1 131
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Basin Index (%) * 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 25.3 22.5 112
DIVIDE PEAK 8880 .0 .0 * 34.9 31.6 110
ELK RIVER 8700 .0 .0 * 34.0 30.2 113
LITTLE SNAKE RIVER 8915 -M .0 * 47.9 40.8 117
OLD BATTLE 10000 .1 .0 * 52.3 48.8 107
SAGE CREEK BASIN 7850 .1 .0 * 20.0 21.3 94
SANDSTONE RS 8150 .3 .0 * 23.9 27.3 88
WHISKEY PARK 8950 .0 .0 * 52.5 39.5 133
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Basin Index (%) * 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 * 22.0 22.2 99
BLIND BULL SUM 8650 .0 .0 * 34.2 29.0 118
EAST RIM DIVIDE 7930 .0 .0 * 23.5 18.6 126
ELKHART PARK G.S. 9400 .1 .0 * 26.5 22.5 118
GROS VENTRE SUMMIT 8750 .0 .0 * 24.3 21.7 112
GUNSIGHT PASS 9820 .0 .0 * 31.7 23.6 134
KENDALL R.S. 7740 .0 .0 * 30.3 21.4 142
LOOMIS PARK 8240 .0 .0 * 34.4 25.9 133
NEW FORK LAKE 8340 .1 .0 * 21.6 18.7 116
POCKET CREEK 9360 -M -M * 27.0 -M *
SNIDER BASIN 8060 .1 .0 * 27.2 20.6 132
SPRING CREEK DIVIDE 9000 .2 .0 * 43.2 33.8 128
TRIPLE PEAK 8500 .0 .0 * 49.1 36.5 135
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Basin Index (%) * 125
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 22.7 -M *
BUCK PASTURE 9700 .0 -M * 25.6 -M *
EF BLACKS FORK GS 9360 .0 -M * 20.9 -M *
HAMS FORK 7840 .1 .0 * 23.7 18.6 127
HEWINTA 9519 .1 .0 * 26.2 24.0 109
HICKERSON PARK 9145 .3 .0 * 20.3 19.9 102
HOLE-IN-ROCK 9150 .0 .0 * 20.8 19.4 107
INDIAN CREEK 9425 .0 .0 * 37.7 32.1 117
KELLEY R.S. 8180 .3 .0 * 30.8 26.5 116
SPIRIT LK 10235 .0 -M * 28.3 -M *
STEEL CREEK PARK 10200 .0 .0 * 29.0 27.8 104
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Basin Index (%) * 112
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 21.3 -M *
BUG LAKE 7950 .2 .0 * 32.4 28.0 116
BURTS MILLER RANCH 8000 .2 -M * 12.5 -M *
CHALK CREEK #1 8993 .1 .0 * 33.0 37.5 88
HAYDEN FORK 9212 .0 .0 * 34.6 31.8 109
KELLEY R.S. 8180 .3 .0 * 30.8 26.5 116
LILY LAKE 9156 .0 .0 * 25.9 27.2 95
MONTE CRISTO 8960 .2 .0 * 40.4 37.0 109
SALT RIVER SUMMIT 7760 .0 .0 * 28.1 25.0 112
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Basin Index (%) * 106
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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.