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 TUESDAY: JULY 26 , 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 -M .0 * 38.8 30.1 129
COTTONWOOD CREEK 7670 .0 .0 100* 55.0 38.8 142
GRAND TARGHEE 9260 .0 -M * 61.7 -M *
GRANITE CREEK 6770 .0 .0 100* 38.5 27.7 139
GRASSY LAKE 7265 .0 .0 100* 64.3 49.4 130
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.5 21.0 121
GUNSIGHT PASS 9820 -M -M * 31.2 -M *
LEWIS LAKE DIVIDE 7850 -M .0 * 57.6 49.4 117
PHILLIPS BENCH 8200 -M .0 * 51.8 40.0 130
SALT RIVER SUMMIT 7760 .0 .0 100* 31.7 26.4 120
SNAKE RIVER STATION 6920 .0 .0 100* 41.6 31.9 130
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.8 *
THUMB DIVIDE 7980 .2 .0 * 34.5 27.8 124
TOGWOTEE PASS 9580 .0 .0 100* 49.4 36.4 136
TWO OCEAN PLATEAU 9240 .0 .0 100* 50.1 40.8 123
WILLOW CREEK 8380 -M .0 * 63.8 46.7 137
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Basin wide percent of average * 129
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .0 .0 100* 40.7 31.5 129
BLACK BEAR 8170 .0 .0 100* 72.3 55.0 131
CANYON 7870 .0 .0 100* 30.0 24.1 124
FISHER CREEK 9100 .0 .0 100* 60.6 52.7 115
MADISON PLATEAU 7750 .0 .0 100* 51.8 38.2 136
NORTHEAST ENTRANCE 7350 .0 .0 100* 26.9 21.9 123
PARKER PEAK 9400 .0 .0 100* 45.5 27.5 165
SYLVAN LAKE 8420 .1 .0 * 46.6 33.7 138
THUMB DIVIDE 7980 .2 .0 * 34.5 27.8 124
TWO OCEAN PLATEAU 9240 .0 .0 100* 50.1 40.8 123
WHISKEY CREEK 6800 .1 .0 * 40.9 31.3 131
WHITE MILL 8700 .0 .0 100* 44.2 40.4 109
WOLVERINE 7650 -M .0 * 25.3 21.9 116
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Basin wide percent of average * 127
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 31.0 25.9 120
CASTLE CREEK 8400 .0 -M * 15.9 -M *
COLD SPRINGS 9630 .1 .0 * 22.4 20.5 109
DEER PARK 9700 .0 .0 100* 37.0 34.5 107
HOBBS PARK 10100 .0 .0 100* 30.6 24.8 123
LITTLE WARM 9370 .0 .0 100* 26.7 23.6 113
SOUTH PASS 9040 .1 .0 * 27.0 29.0 93
ST. LAWRENCE ALT 8620 .1 .0 * 21.7 18.6 117
TOGWOTEE PASS 9580 .0 .0 100* 49.4 36.4 136
TOWNSEND CREEK 8700 .0 .0 100* 23.7 22.1 107
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Basin wide percent of average * 114
BIGHORN BASIN
BALD MTN. 9380 -M .0 * 38.9 30.0 130
BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 18.2 121
BLACKWATER 9780 .0 .0 100* 44.1 34.1 129
BONE SPRINGS DIV 9350 .0 .0 100* 34.6 27.3 127
EVENING STAR 9200 .0 .0 100* 56.6 39.9 142
GRAVE SPRINGS 8550 .0 .0 100* 23.8 20.2 118
KIRWIN 9550 .0 .0 100* 25.4 22.4 113
MARQUETTE 8760 .1 -M * 21.6 22.8 95
MIDDLE POWDER 7760 .0 .0 100* 26.0 23.1 113
OWL CREEK 8975 .0 .0 100* 16.7 14.8 113
POWDER RIVER PASS 9480 .0 .0 100* 32.9 23.9 138
SHELL CREEK 9580 .0 .0 100* 33.0 25.5 129
SYLVAN LAKE 8420 .1 .0 * 46.6 33.7 138
SYLVAN ROAD 7120 .0 .0 100* 35.0 27.0 130
TIMBER CREEK 7950 .0 .0 100* 18.1 18.0 101
YOUNTS PEAK 8350 .0 .0 100* 28.6 26.5 108
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Basin wide percent of average * 124
SHOSHONE RIVER
BLACKWATER 9780 .0 .0 100* 44.1 34.1 129
EVENING STAR 9200 .0 .0 100* 56.6 39.9 142
KIRWIN 9550 .0 .0 100* 25.4 22.4 113
MARQUETTE 8760 .1 -M * 21.6 22.8 95
SYLVAN LAKE 8420 .1 .0 * 46.6 33.7 138
SYLVAN ROAD 7120 .0 .0 100* 35.0 27.0 130
YOUNTS PEAK 8350 .0 .0 100* 28.6 26.5 108
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Basin wide percent of average * 125
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 18.2 121
BIG GOOSE 7990 .0 .0 100* 27.5 19.6 140
BONE SPRINGS DIV 9350 .0 .0 100* 34.6 27.3 127
BURGESS JUNCTION 7880 .0 .0 100* 28.9 23.1 125
CLOUD PEAK RESERVOIR 9860 .1 .0 * 33.7 26.8 126
DOME LAKE 8880 .0 .0 100* 30.6 24.8 123
GRAVE SPRINGS 8550 .0 .0 100* 23.8 20.2 118
HANSEN SAWMILL 8360 .0 .0 100* 23.6 18.5 128
LITTLE GOOSE 8870 .0 -M * 31.0 -M *
MIDDLE POWDER 7760 .0 .0 100* 26.0 23.1 113
POWDER RIVER PASS 9480 .0 .0 100* 32.9 23.9 138
SOLDIER PARK 8720 .0 -M * 23.5 -M *
SUCKER CREEK 8880 -M .0 * 34.7 26.2 132
TIE CREEK 6870 .0 .0 100* 28.6 21.2 135
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Basin wide percent of average * 127
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * 32.0 23.3 137
COLE CANYON 5910 .0 .0 100* 30.5 18.7 163
NORTH RAPID CREEK 6130 .0 .0 100* 30.3 21.4 142
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Basin wide percent of average * 146
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 .0 -M * 61.8 -M *
CINNABAR PARK 9574 -M .0 * 49.9 29.9 167
COLUMBINE 9160 .0 .0 100* 51.8 34.9 148
DIVIDE PEAK 8880 .0 .0 100* 43.6 30.1 145
ELK RIVER 8700 .0 .0 100* -M 28.8 *
JOE WRIGHT 10120 .0 .0 100* 59.6 39.3 152
NORTH FRENCH CREEK 10130 .0 .0 100* -M 38.5 *
OLD BATTLE 10000 .0 .0 100* 69.6 47.4 147
SAGE CREEK BASIN 7850 -M .0 * -M 17.4 *
SOUTH BRUSH CREEK 8440 .0 .0 100* 36.2 27.1 134
TOWER 10500 .1 .0 * 79.2 53.8 147
WEBBER SPRINGS 9250 .0 .0 100* 53.3 37.6 142
WILLOW CREEK PASS 9540 .0 .0 100* 35.0 22.5 156
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Basin wide percent of average * 148
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 49.4 34.8 142
CASPER MTN. 7900 .0 .0 100* 27.2 27.3 100
DEADMAN HILL 10220 .0 .0 100* 37.3 27.6 135
DEER PARK 9700 .0 .0 100* 37.0 34.5 107
LAPRELE CREEK 8375 .0 .0 100* 25.2 23.5 107
RENO HILL 8400 .0 .0 100* 30.7 27.8 110
ROACH 9700 .0 .0 100* 39.3 29.7 132
SAND LAKE 10050 .0 .0 100* 56.8 38.1 149
SOUTH PASS 9040 .1 .0 * 27.0 29.0 93
WINDY PEAK 7900 .0 .0 100* 22.8 20.6 111
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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* 43.6 30.1 145
OLD BATTLE 10000 .0 .0 100* 69.6 47.4 147
SANDSTONE RS 8150 2.2 .0 * 40.9 27.4 149
WHISKEY PARK 8950 -M .0 * 64.0 41.2 155
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Basin wide percent of average * 149
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 26.6 21.5 124
BLIND BULL SUM 8650 .0 .0 100* 35.9 30.9 116
EAST RIM DIVIDE 7930 .3 .0 * 23.0 18.3 126
ELKHART PARK G.S. 9400 .0 .0 100* 23.2 22.1 105
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.5 21.0 121
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 25.0 132
NEW FORK LAKE 8340 .0 .0 100* 18.9 18.7 101
POCKET CREEK 9360 .0 -M * 24.9 -M *
SNIDER BASIN 8060 .0 .0 100* 28.4 22.4 127
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.8 *
TRIPLE PEAK 8500 .1 .0 * 50.4 35.0 144
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Basin wide percent of average * 122
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 * 25.1 19.3 130
HEWINTA 9519 .0 .0 100* 32.5 23.5 138
HICKERSON PARK 9145 .0 .0 100* 22.4 15.4 145
HOLE-IN-ROCK 9150 .3 .0 * 24.2 15.2 159
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 -M .0 * 37.1 26.5 140
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Basin wide percent of average * 134
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 44.1 27.2 162
HAYDEN FORK 9212 .0 .0 100* 47.3 31.4 151
KELLEY R.S. 8180 .0 .0 100* 36.2 28.6 127
LILY LAKE 9156 .0 .0 100* 37.4 26.8 140
MONTE CRISTO 8960 .0 .0 100* 56.0 36.5 153
SALT RIVER SUMMIT 7760 .0 .0 100* 31.7 26.4 120
TRIAL LAKE 9992 .2 .0 * 52.1 36.7 142
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Basin wide percent of average * 143
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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.