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 MONDAY: AUGUST 11 , 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 * 34.8 29.4 118
BLACK BEAR 8170 .1 .0 * 53.7 51.7 104
BLIND BULL SUM 8650 .0 .0 * 31.2 28.0 111
COTTONWOOD CREEK 7670 .1 .0 * 44.8 35.7 125
EAST RIM DIVIDE 7930 .0 .0 * 21.7 17.8 122
GRAND TARGHEE 9260 .0 .0 * 49.5 44.5 111
GRANITE CREEK 6770 .0 .0 * 32.0 27.3 117
GRASSY LAKE 7265 .2 .0 * 52.3 48.8 107
GROS VENTRE SUMMIT 8750 .0 .0 * 22.6 20.8 109
GUNSIGHT PASS 9820 .0 .0 * 28.7 22.6 127
LEWIS LAKE DIVIDE 7850 .0 .0 * 54.5 47.6 114
PHILLIPS BENCH 8200 .0 .0 * 45.0 38.4 117
SALT RIVER SUMMIT 7760 .0 .0 * 25.8 24.1 107
SNAKE RIVER STATION 6920 .0 .0 * 36.4 32.2 113
SPRING CREEK DIVIDE 9000 .1 .0 * 40.7 32.8 124
THUMB DIVIDE 7980 .1 .0 * 28.4 27.4 104
TOGWOTEE PASS 9580 .1 .0 * 42.2 35.5 119
TWO OCEAN PLATEAU 9240 -M .0 * 45.8 39.9 115
WILLOW CREEK 8380 .2 .0 * 53.2 47.9 111
YOUNTS PEAK 8350 -M .0 * -M 25.7 *
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Basin Index (%) * 114
MADISON-GALLATIN
BLACK BEAR 8170 .1 .0 * 53.7 51.7 104
CANYON 7870 .0 .0 * 23.0 25.3 91
MADISON PLATEAU 7750 .0 .0 * 36.4 37.8 96
WEST YELLOWSTONE 6700 .1 .0 * 24.9 22.2 112
WHISKEY CREEK 6800 .1 .0 * 31.2 30.2 103
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Basin Index (%) * 101
YELLOWSTONE
BEARTOOTH LAKE 9360 .0 .0 * 40.4 30.2 134
BURNT MTN 5880 .0 .0 * 29.9 26.6 112
CANYON 7870 .0 .0 * 23.0 25.3 91
COLE CREEK 7850 .0 .0 * 27.4 27.4 100
EVENING STAR 9200 .0 .0 * 52.4 41.2 127
FISHER CREEK 9100 .0 .0 * 53.2 47.6 112
NORTHEAST ENTRANCE 7350 .0 .0 * 23.9 22.1 108
PARKER PEAK 9400 .0 .0 * 41.5 29.0 143
SYLVAN LAKE 8420 .0 .0 * 41.1 34.9 118
THUMB DIVIDE 7980 .1 .0 * 28.4 27.4 104
TWO OCEAN PLATEAU 9240 -M .0 * 45.8 39.9 115
WHITE MILL 8700 .0 .0 * 40.0 37.0 108
WOLVERINE 7650 -M .0 * 25.6 20.7 124
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Basin Index (%) * 115
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 * 2.2 25.4 9
CASTLE CREEK 8400 .1 -M * 20.4 -M *
COLD SPRINGS 9630 .0 .0 * 21.5 19.3 111
DEER PARK 9700 .0 .0 * 28.1 31.6 89
HOBBS PARK 10100 .0 .0 * 23.3 24.9 94
KIRWIN 9550 .1 .0 * 26.9 22.7 119
LITTLE WARM 9370 .0 .0 * 24.4 22.6 108
OWL CREEK 8975 .1 .0 * 12.4 14.9 83
SOUTH PASS 9040 .0 .0 * 20.7 27.0 77
ST. LAWRENCE ALT 8620 .0 .0 * 15.2 18.2 84
TOGWOTEE PASS 9580 .1 .0 * 42.2 35.5 119
TOWNSEND CREEK 8700 .1 .0 * 17.3 21.9 79
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Basin Index (%) * 89
BIGHORN BASIN
BALD MTN. 9380 .0 .0 * 31.3 28.8 109
BEAR TRAP MEADOW 8200 .0 .0 * 21.7 18.2 119
BONE SPRINGS DIV 9350 .1 .0 * 28.5 27.9 102
GRAVE SPRINGS 8550 .0 .0 * 20.8 20.4 102
KIRWIN 9550 .1 .0 * 26.9 22.7 119
MARQUETTE 8760 .0 -M * 22.4 -M *
MIDDLE POWDER 7760 .0 .0 * 27.0 22.0 123
OWL CREEK 8975 .1 .0 * 12.4 14.9 83
POWDER RIVER PASS 9480 .0 .0 * 28.0 23.8 118
SHELL CREEK 9580 .0 .0 * 27.7 25.2 110
TIMBER CREEK 7950 .1 .0 * 19.0 18.2 104
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Basin Index (%) * 110
SHOSHONE RIVER
BLACKWATER 9780 .1 .0 * 41.0 32.7 125
EVENING STAR 9200 .0 .0 * 52.4 41.2 127
MARQUETTE 8760 .0 -M * 22.4 -M *
SYLVAN ROAD 7120 .0 .0 * 30.7 25.6 120
YOUNTS PEAK 8350 -M .0 * -M 25.7 *
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Basin Index (%) * 125
POWDER RIVER
BEAR TRAP MEADOW 8200 .0 .0 * 21.7 18.2 119
CLOUD PEAK RESERVOIR 9860 .0 .0 * 33.2 27.1 123
GRAVE SPRINGS 8550 .0 .0 * 20.8 20.4 102
HANSEN SAWMILL 8360 .0 .0 * 22.5 19.3 117
MIDDLE POWDER 7760 .0 .0 * 27.0 22.0 123
POWDER RIVER PASS 9480 .0 .0 * 28.0 23.8 118
SOLDIER PARK 8720 .1 -M * 22.7 -M *
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Basin Index (%) * 117
TONGUE RIVER
BIG GOOSE 7990 .1 .0 * 24.8 21.6 115
BONE SPRINGS DIV 9350 .1 .0 * 28.5 27.9 102
BURGESS JUNCTION 7880 .1 .0 * 24.6 22.9 107
DOME LAKE 8880 .0 .0 * 30.2 25.1 120
LITTLE GOOSE 8870 .1 -M * 29.5 -M *
SUCKER CREEK 8880 .0 .0 * 30.9 26.8 115
TIE CREEK 6870 .0 .0 * 25.2 23.6 107
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Basin Index (%) * 111
BELLE FOURCHE
COLE CANYON 5910 .0 .0 * 25.3 22.8 111
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Basin Index (%) * 111
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 * 28.9 25.0 116
NORTH RAPID CREEK 6130 .0 .0 * 30.2 24.1 125
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Basin Index (%) * 120
UPPER N. PLATTE
ARAPAHO RIDGE 10960 .0 .0 * 39.8 34.1 117
BLACKHALL MTN 9820 .0 -M * 47.9 -M *
COLUMBINE 9160 .0 .0 * 45.5 35.1 130
DIVIDE PEAK 8880 .0 .0 * 31.3 30.7 102
JOE WRIGHT 10120 .0 .0 * 48.0 39.8 121
LAPRELE CREEK 8375 .0 .0 * 20.2 21.8 93
MED BOW 10500 -M -M * 53.1 -M *
NORTH FRENCH CREEK 10130 1.1 .0 * 48.3 39.9 121
NEVER SUMMER 10280 -M .0 * -M -M *
OLD BATTLE 10000 .0 .0 * 48.5 47.9 101
RAWAH 9020 .0 .0 * 30.3 23.8 127
SAGE CREEK BASIN 7850 .1 .0 * 18.2 20.5 89
SAND LAKE 10050 .0 .0 * 46.5 37.9 123
SOUTH BRUSH CREEK 8440 .0 .0 * 21.6 24.6 88
TOWER 10500 .0 .0 * 64.8 54.2 120
WEBBER SPRINGS 9250 .0 .0 * 41.3 37.0 112
WILLOW CREEK PASS 9540 .0 .0 * 27.3 22.9 119
ZIRKEL 9340 .1 .0 * 53.0 38.8 137
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Basin Index (%) * 115
SWEETWATER
DEER PARK 9700 .0 .0 * 28.1 31.6 89
LARSEN CREEK 9000 .0 .0 * 20.2 -M *
SOUTH PASS 9040 .0 .0 * 20.7 27.0 77
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Basin Index (%) * 83
LOWER N. PLATTE
CASPER MTN. 7900 .0 .0 * 23.8 25.5 93
LAPRELE CREEK 8375 .0 .0 * 20.2 21.8 93
RENO HILL 8400 .0 .0 * 31.0 26.4 117
WINDY PEAK 7900 .0 .0 * 23.4 20.7 113
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Basin Index (%) * 104
LARAMIE RIVER
BROOKLYN LAKE 10240 .0 .0 * 41.7 32.7 128
CINNABAR PARK 9574 .0 .0 * -M 34.7 *
CROW CREEK 8330 .0 .0 * 24.4 22.5 108
DEADMAN HILL 10220 .0 .0 * 36.0 28.2 128
RAWAH 9020 .0 .0 * 30.3 23.8 127
ROACH 9700 .0 .0 * 37.6 30.2 125
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Basin Index (%) * 124
S. PLATTE
BLACK MOUNTAIN 8920 .0 -M * 25.4 -M *
CROW CREEK 8330 .0 .0 * 24.4 22.5 108
DEADMAN HILL 10220 .0 .0 * 36.0 28.2 128
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Basin Index (%) * 119
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 * 21.4 21.8 98
DIVIDE PEAK 8880 .0 .0 * 31.3 30.7 102
ELK RIVER 8700 .0 .0 * 31.2 29.3 106
LITTLE SNAKE RIVER 8915 -M .0 * 43.8 39.9 110
OLD BATTLE 10000 .0 .0 * 48.5 47.9 101
SAGE CREEK BASIN 7850 .1 .0 * 18.2 20.5 89
SANDSTONE RS 8150 .3 .0 * 20.9 26.4 79
WHISKEY PARK 8950 .0 .0 * 49.4 38.7 128
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Basin Index (%) * 104
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 * 19.5 21.4 91
BLIND BULL SUM 8650 .0 .0 * 31.2 28.0 111
EAST RIM DIVIDE 7930 .0 .0 * 21.7 17.8 122
ELKHART PARK G.S. 9400 .0 .0 * 24.6 21.5 114
GROS VENTRE SUMMIT 8750 .0 .0 * 22.6 20.8 109
GUNSIGHT PASS 9820 .0 .0 * 28.7 22.6 127
KENDALL R.S. 7740 .0 .0 * 28.7 20.6 139
LOOMIS PARK 8240 .0 .0 * 32.9 24.9 132
NEW FORK LAKE 8340 .0 .0 * 20.0 17.9 112
POCKET CREEK 9360 -M -M * 23.6 -M *
SNIDER BASIN 8060 .0 .0 * 26.0 20.0 130
SPRING CREEK DIVIDE 9000 .1 .0 * 40.7 32.8 124
TRIPLE PEAK 8500 .0 .0 * 45.4 35.4 128
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Basin Index (%) * 121
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 19.6 -M *
BUCK PASTURE 9700 .0 -M * 25.4 -M *
EF BLACKS FORK GS 9360 .0 -M * 17.3 -M *
HAMS FORK 7840 .1 .0 * 22.0 18.0 122
HEWINTA 9519 .0 .0 * 21.9 22.8 96
HICKERSON PARK 9145 .2 .0 * 16.9 18.5 91
HOLE-IN-ROCK 9150 .0 .0 * 17.6 17.9 98
INDIAN CREEK 9425 .0 .0 * 36.0 31.2 115
KELLEY R.S. 8180 .1 .0 * 28.8 25.7 112
SPIRIT LK 10235 .0 -M * 24.1 -M *
STEEL CREEK PARK 10200 .0 .0 * 24.9 26.5 94
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Basin Index (%) * 105
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 18.1 -M *
BUG LAKE 7950 .3 .0 * 29.3 27.1 108
BURTS MILLER RANCH 8000 .0 -M * 10.9 -M *
CHALK CREEK #1 8993 .0 .0 * 31.3 36.4 86
HAYDEN FORK 9212 .0 .0 * 30.1 30.6 98
KELLEY R.S. 8180 .1 .0 * 28.8 25.7 112
LILY LAKE 9156 .0 .0 * 22.4 26.0 86
MONTE CRISTO 8960 .2 .0 * 37.4 36.2 103
SALT RIVER SUMMIT 7760 .0 .0 * 25.8 24.1 107
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Basin Index (%) * 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.
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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.