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: JULY 28 , 2011
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .1 .0 * 39.0 30.2 129
COTTONWOOD CREEK 7670 .0 .0 100* 55.0 38.9 141
GRAND TARGHEE 9260 .0 -M * 61.7 -M *
GRANITE CREEK 6770 .0 .0 100* 38.5 27.8 138
GRASSY LAKE 7265 .0 .0 100* 64.1 49.5 129
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 21.2 121
GUNSIGHT PASS 9820 -M -M * 31.2 -M *
LEWIS LAKE DIVIDE 7850 -M .0 * 57.3 49.5 116
PHILLIPS BENCH 8200 -M .0 * 51.7 40.1 129
SALT RIVER SUMMIT 7760 .0 .0 100* 31.6 26.5 119
SNAKE RIVER STATION 6920 .0 .0 100* 41.5 32.0 130
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.8 *
THUMB DIVIDE 7980 .1 .0 * 34.5 27.8 124
TOGWOTEE PASS 9580 .0 .0 100* 49.4 36.6 135
TWO OCEAN PLATEAU 9240 .0 .0 100* 50.1 40.9 122
WILLOW CREEK 8380 -M .0 * 63.9 46.8 137
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Basin wide percent of average * 129
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .0 .0 100* 40.8 31.7 129
BLACK BEAR 8170 .0 .0 100* 72.2 55.1 131
CANYON 7870 .0 .0 100* 29.7 24.2 123
FISHER CREEK 9100 .0 .0 100* 60.6 52.9 115
MADISON PLATEAU 7750 .0 .0 100* 51.7 38.3 135
NORTHEAST ENTRANCE 7350 .0 .0 100* 26.9 22.0 122
PARKER PEAK 9400 .0 .0 100* 45.3 27.6 164
SYLVAN LAKE 8420 .0 .0 100* 46.7 33.8 138
THUMB DIVIDE 7980 .1 .0 * 34.5 27.8 124
TWO OCEAN PLATEAU 9240 .0 .0 100* 50.1 40.9 122
WHISKEY CREEK 6800 .0 .0 100* 40.6 31.3 130
WHITE MILL 8700 .0 .0 100* 44.0 40.6 108
WOLVERINE 7650 -M .0 * 25.2 22.0 115
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Basin wide percent of average * 127
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 30.9 26.0 119
CASTLE CREEK 8400 .0 -M * 15.8 -M *
COLD SPRINGS 9630 .0 .0 100* 22.1 20.6 107
DEER PARK 9700 .0 .0 100* 36.9 34.6 107
HOBBS PARK 10100 .0 .0 100* 30.3 24.9 122
LITTLE WARM 9370 .0 .0 100* 26.5 23.8 111
SOUTH PASS 9040 .1 .0 * 27.0 29.1 93
ST. LAWRENCE ALT 8620 .0 .0 100* 21.8 18.7 117
TOGWOTEE PASS 9580 .0 .0 100* 49.4 36.6 135
TOWNSEND CREEK 8700 .0 .0 100* 23.7 22.2 107
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Basin wide percent of average * 114
BIGHORN BASIN
BALD MTN. 9380 -M .0 * 38.7 30.2 128
BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 18.3 120
BLACKWATER 9780 .0 .0 100* 44.0 34.3 128
BONE SPRINGS DIV 9350 .0 .0 100* 34.5 27.5 125
EVENING STAR 9200 .0 .0 100* 56.7 40.1 141
GRAVE SPRINGS 8550 .1 .0 * 23.9 20.3 118
KIRWIN 9550 .0 .0 100* 25.4 22.6 112
MARQUETTE 8760 .0 -M * 21.5 23.0 93
MIDDLE POWDER 7760 .0 .0 100* 25.9 23.2 112
OWL CREEK 8975 .0 .0 100* 16.6 14.9 111
POWDER RIVER PASS 9480 .0 .0 100* 32.9 24.0 137
SHELL CREEK 9580 .0 .0 100* 33.2 25.6 130
SYLVAN LAKE 8420 .0 .0 100* 46.7 33.8 138
SYLVAN ROAD 7120 .0 .0 100* 35.0 27.1 129
TIMBER CREEK 7950 .0 .0 100* 18.1 18.1 100
YOUNTS PEAK 8350 .0 .0 100* 28.7 26.7 107
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Basin wide percent of average * 123
SHOSHONE RIVER
BLACKWATER 9780 .0 .0 100* 44.0 34.3 128
EVENING STAR 9200 .0 .0 100* 56.7 40.1 141
KIRWIN 9550 .0 .0 100* 25.4 22.6 112
MARQUETTE 8760 .0 -M * 21.5 23.0 93
SYLVAN LAKE 8420 .0 .0 100* 46.7 33.8 138
SYLVAN ROAD 7120 .0 .0 100* 35.0 27.1 129
YOUNTS PEAK 8350 .0 .0 100* 28.7 26.7 107
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Basin wide percent of average * 124
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 18.3 120
BIG GOOSE 7990 .0 .0 100* 27.4 19.6 140
BONE SPRINGS DIV 9350 .0 .0 100* 34.5 27.5 125
BURGESS JUNCTION 7880 .0 .0 100* 29.0 23.2 125
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 33.8 26.9 126
DOME LAKE 8880 .0 .0 100* 30.5 24.9 122
GRAVE SPRINGS 8550 .1 .0 * 23.9 20.3 118
HANSEN SAWMILL 8360 .0 .0 100* 23.6 18.7 126
LITTLE GOOSE 8870 .0 -M * 31.1 -M *
MIDDLE POWDER 7760 .0 .0 100* 25.9 23.2 112
POWDER RIVER PASS 9480 .0 .0 100* 32.9 24.0 137
SOLDIER PARK 8720 .0 -M * 23.5 -M *
SUCKER CREEK 8880 -M .0 * 34.5 26.3 131
TIE CREEK 6870 .0 .0 100* 28.7 21.3 135
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Basin wide percent of average * 126
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 32.0 23.5 136
COLE CANYON 5910 .0 .0 100* 30.6 18.9 162
NORTH RAPID CREEK 6130 .1 .0 * 30.5 21.7 141
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Basin wide percent of average * 145
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 .0 -M * -M -M *
CINNABAR PARK 9574 -M .0 * 49.9 30.0 166
COLUMBINE 9160 .0 .0 100* 51.9 35.0 148
DIVIDE PEAK 8880 .0 .0 100* -M 30.2 *
ELK RIVER 8700 .0 .0 100* -M 28.9 *
JOE WRIGHT 10120 .0 .0 100* 60.1 39.4 153
NORTH FRENCH CREEK 10130 .0 .0 100* -M 38.6 *
OLD BATTLE 10000 .0 .0 100* 70.2 47.5 148
SAGE CREEK BASIN 7850 .0 .0 100* -M 17.5 *
SOUTH BRUSH CREEK 8440 .0 .0 100* 36.4 27.2 134
TOWER 10500 .0 .0 100* 79.9 53.9 148
WEBBER SPRINGS 9250 .0 .0 100* -M 37.7 *
WILLOW CREEK PASS 9540 -M .0 * 35.1 22.6 155
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Basin wide percent of average * 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 49.3 34.9 141
CASPER MTN. 7900 .0 .0 100* 27.7 27.4 101
DEADMAN HILL 10220 .0 .0 100* 37.5 27.8 135
DEER PARK 9700 .0 .0 100* 36.9 34.6 107
LAPRELE CREEK 8375 .0 .0 100* 24.9 23.7 105
RENO HILL 8400 .0 .0 100* 31.0 27.9 111
ROACH 9700 .0 .0 100* 39.4 29.8 132
SAND LAKE 10050 .0 .0 100* 57.0 38.2 149
SOUTH PASS 9040 .1 .0 * 27.0 29.1 93
WINDY PEAK 7900 .0 .0 100* 22.8 20.7 110
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Basin wide percent of average * 120
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * -M 23.0 *
DIVIDE PEAK 8880 .0 .0 100* -M 30.2 *
OLD BATTLE 10000 .0 .0 100* 70.2 47.5 148
SANDSTONE RS 8150 .7 .0 * 41.6 27.5 151
WHISKEY PARK 8950 -M .0 * -M 41.3 *
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Basin wide percent of average * 149*
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 26.6 21.6 123
BLIND BULL SUM 8650 .0 .0 100* 36.0 31.0 116
EAST RIM DIVIDE 7930 .2 .0 * 22.9 18.4 124
ELKHART PARK G.S. 9400 .0 .0 100* 23.2 22.2 105
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 21.2 121
GUNSIGHT PASS 9820 -M -M * 31.2 -M *
KENDALL R.S. 7740 .0 .0 100* 24.0 21.1 114
LOOMIS PARK 8240 .1 .0 * 33.1 25.1 132
NEW FORK LAKE 8340 .0 .0 100* 18.8 18.8 100
POCKET CREEK 9360 .0 -M * 24.9 -M *
SNIDER BASIN 8060 .0 .0 100* 28.3 22.4 126
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.8 *
TRIPLE PEAK 8500 .0 .0 100* 50.2 35.1 143
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Basin wide percent of average * 122
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * 25.1 19.4 129
HEWINTA 9519 .0 .0 100* 32.5 23.7 137
HICKERSON PARK 9145 .0 .0 100* 22.5 15.5 145
HOLE-IN-ROCK 9150 .2 .0 * 24.4 15.3 159
INDIAN CREEK 9425 .0 .0 100* 40.9 35.0 117
KELLEY R.S. 8180 .0 .0 100* 36.2 28.6 127
STEEL CREEK PARK 10200 .0 .0 100* 37.2 26.7 139
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Basin wide percent of average * 133
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 44.1 27.3 162
HAYDEN FORK 9212 .0 .0 100* 47.3 31.5 150
KELLEY R.S. 8180 .0 .0 100* 36.2 28.6 127
LILY LAKE 9156 .0 .0 100* 37.4 26.9 139
MONTE CRISTO 8960 .0 .0 100* 56.1 36.6 153
SALT RIVER SUMMIT 7760 .0 .0 100* 31.6 26.5 119
TRIAL LAKE 9992 .1 .0 * 52.2 36.8 142
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Basin wide percent of average * 142
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
If the Basin wide percent of average 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 Average represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the average 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.
Reference period for average conditions is 1971-2000.
Provisional data, subject to revision.
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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.