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 WEDNESDAY: JULY 13 , 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 .0 .0 100* 38.3 29.5 130
COTTONWOOD CREEK 7670 .0 .0 100* 55.0 38.3 144
GRAND TARGHEE 9260 23.8 -M * 61.7 -M *
GRANITE CREEK 6770 .0 .0 100* 38.4 27.1 142
GRASSY LAKE 7265 -M .0 * 63.7 48.7 131
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.1 20.3 124
GUNSIGHT PASS 9820 .8 -M * 30.8 -M *
LEWIS LAKE DIVIDE 7850 .0 .0 100* 56.3 48.7 116
PHILLIPS BENCH 8200 .0 .0 100* 51.3 39.4 130
SALT RIVER SUMMIT 7760 .0 .0 100* 31.7 25.9 122
SNAKE RIVER STATION 6920 -M .0 * 41.4 31.3 132
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.2 *
THUMB DIVIDE 7980 .1 .0 * 34.2 27.3 125
TOGWOTEE PASS 9580 12.6 .0 * 49.1 35.6 138
TWO OCEAN PLATEAU 9240 8.4 .0 * 50.0 40.0 125
WILLOW CREEK 8380 -M .0 * -M 45.9 *
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Basin wide percent of average * 130
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .7 .7 100* 40.8 30.6 133
BLACK BEAR 8170 .0 .0 100* 71.8 54.2 132
CANYON 7870 .0 .0 100* 29.7 23.4 127
FISHER CREEK 9100 7.3 .1 7300* 60.4 51.6 117
MADISON PLATEAU 7750 .0 .0 100* 51.7 37.6 138
NORTHEAST ENTRANCE 7350 .0 .0 100* 26.7 21.0 127
PARKER PEAK 9400 .0 .9 0* 45.2 26.8 169
SYLVAN LAKE 8420 .0 .0 100* 46.4 32.9 141
THUMB DIVIDE 7980 .1 .0 * 34.2 27.3 125
TWO OCEAN PLATEAU 9240 8.4 .0 * 50.0 40.0 125
WHISKEY CREEK 6800 .0 .0 100* 40.5 30.7 132
WHITE MILL 8700 .0 .0 100* 43.9 39.4 111
WOLVERINE 7650 .0 .0 100* 25.1 21.2 118
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Basin wide percent of average 971* 130
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 30.6 25.2 121
CASTLE CREEK 8400 .0 -M * 15.9 -M *
COLD SPRINGS 9630 .0 .0 100* 22.1 19.9 111
DEER PARK 9700 .0 .0 100* 37.2 33.9 110
HOBBS PARK 10100 .0 .0 100* 29.5 24.0 123
LITTLE WARM 9370 .0 .0 100* 26.1 22.8 114
SOUTH PASS 9040 .0 .0 100* 27.3 28.5 96
ST. LAWRENCE ALT 8620 .0 .0 100* 21.6 18.0 120
TOGWOTEE PASS 9580 12.6 .0 * 49.1 35.6 138
TOWNSEND CREEK 8700 .0 .0 100* 23.5 21.5 109
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Basin wide percent of average * 116
BIGHORN BASIN
BALD MTN. 9380 .0 .1 0* 38.7 29.1 133
BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 17.6 125
BLACKWATER 9780 2.4 1.0 240* 44.3 33.1 134
BONE SPRINGS DIV 9350 .0 .0 100* 34.0 26.4 129
EVENING STAR 9200 .0 1.1 0* 56.4 38.8 145
GRAVE SPRINGS 8550 .0 .0 100* 23.8 19.4 123
KIRWIN 9550 .0 .0 100* 25.3 21.2 119
MARQUETTE 8760 .0 -M * 21.9 21.9 100
MIDDLE POWDER 7760 .0 .0 100* 26.1 22.4 117
OWL CREEK 8975 .0 .0 100* 16.4 14.0 117
POWDER RIVER PASS 9480 .0 .0 100* 32.9 23.1 142
SHELL CREEK 9580 .0 .0 100* 32.8 24.7 133
SYLVAN LAKE 8420 .0 .0 100* 46.4 32.9 141
SYLVAN ROAD 7120 .0 .0 100* 34.8 26.4 132
TIMBER CREEK 7950 .0 .0 100* 18.0 17.3 104
YOUNTS PEAK 8350 .0 .0 100* 28.3 25.5 111
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Basin wide percent of average 109* 128
SHOSHONE RIVER
BLACKWATER 9780 2.4 1.0 240* 44.3 33.1 134
EVENING STAR 9200 .0 1.1 0* 56.4 38.8 145
KIRWIN 9550 .0 .0 100* 25.3 21.2 119
MARQUETTE 8760 .0 -M * 21.9 21.9 100
SYLVAN LAKE 8420 .0 .0 100* 46.4 32.9 141
SYLVAN ROAD 7120 .0 .0 100* 34.8 26.4 132
YOUNTS PEAK 8350 .0 .0 100* 28.3 25.5 111
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Basin wide percent of average 114* 129
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 22.0 17.6 125
BIG GOOSE 7990 .0 .0 100* 27.5 18.7 147
BONE SPRINGS DIV 9350 .0 .0 100* 34.0 26.4 129
BURGESS JUNCTION 7880 .0 .0 100* 28.8 22.1 130
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 33.4 25.8 129
DOME LAKE 8880 .0 .0 100* 30.1 24.0 125
GRAVE SPRINGS 8550 .0 .0 100* 23.8 19.4 123
HANSEN SAWMILL 8360 .0 .0 100* 23.1 17.7 131
LITTLE GOOSE 8870 .0 -M * 30.9 -M *
MIDDLE POWDER 7760 .0 .0 100* 26.1 22.4 117
POWDER RIVER PASS 9480 .0 .0 100* 32.9 23.1 142
SOLDIER PARK 8720 .0 -M * 23.0 -M *
SUCKER CREEK 8880 .0 .0 100* 34.4 25.4 135
TIE CREEK 6870 .0 .0 100* 28.4 20.7 137
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Basin wide percent of average * 131
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 32.0 22.1 145
COLE CANYON 5910 .0 .0 100* 30.2 17.5 173
NORTH RAPID CREEK 6130 .0 .0 100* 30.3 19.5 155
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Basin wide percent of average * 157
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 .0 -M * 61.2 -M *
CINNABAR PARK 9574 -M .0 * 49.4 29.3 169
COLUMBINE 9160 .0 .0 100* -M 34.2 *
DIVIDE PEAK 8880 .0 .0 100* 42.9 29.5 145
ELK RIVER 8700 .0 .0 100* 39.9 28.1 142
JOE WRIGHT 10120 .0 .0 100* -M 38.2 *
NORTH FRENCH CREEK 10130 9.9 .0 * -M 37.5 *
OLD BATTLE 10000 .2 .0 * 69.4 46.7 149
SAGE CREEK BASIN 7850 -M .0 * -M 17.1 *
SOUTH BRUSH CREEK 8440 .0 .0 100* 35.5 26.4 134
TOWER 10500 18.2 2.1 867* 78.1 53.0 147
WEBBER SPRINGS 9250 .0 .0 100* 52.8 36.9 143
WILLOW CREEK PASS 9540 .0 .0 100* -M 21.7 *
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Basin wide percent of average 1348* 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .1 .0 * 48.6 33.9 143
CASPER MTN. 7900 .0 .0 100* 27.3 26.7 102
DEADMAN HILL 10220 -M .0 * -M 26.9 *
DEER PARK 9700 .0 .0 100* 37.2 33.9 110
LAPRELE CREEK 8375 .0 .0 100* 25.1 22.6 111
RENO HILL 8400 .0 .0 100* 30.6 27.1 113
ROACH 9700 -M .0 * 39.0 28.9 135
SAND LAKE 10050 -M .0 * 56.2 37.3 151
SOUTH PASS 9040 .0 .0 100* 27.3 28.5 96
WINDY PEAK 7900 .0 .0 100* 22.6 19.7 115
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Basin wide percent of average * 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * -M 22.5 *
DIVIDE PEAK 8880 .0 .0 100* 42.9 29.5 145
OLD BATTLE 10000 .2 .0 * 69.4 46.7 149
SANDSTONE RS 8150 1.2 .0 * 40.1 26.8 150
WHISKEY PARK 8950 -M .0 * 62.0 40.5 153
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Basin wide percent of average * 149
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 26.3 21.0 125
BLIND BULL SUM 8650 .0 .0 100* 35.7 30.3 118
EAST RIM DIVIDE 7930 .1 .0 * 21.9 17.9 122
ELKHART PARK G.S. 9400 .0 .0 100* 23.1 21.5 107
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.1 20.3 124
GUNSIGHT PASS 9820 .8 -M * 30.8 -M *
KENDALL R.S. 7740 .0 .0 100* 23.8 20.6 116
LOOMIS PARK 8240 .1 .0 * 32.2 24.4 132
NEW FORK LAKE 8340 .0 .0 100* 18.6 18.1 103
POCKET CREEK 9360 .2 -M * 24.5 -M *
SNIDER BASIN 8060 .0 .0 100* 28.4 22.0 129
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.2 *
TRIPLE PEAK 8500 .0 .0 100* 50.1 34.4 146
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Basin wide percent of average * 124
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.7 18.8 131
HEWINTA 9519 .0 .0 100* 32.1 22.6 142
HICKERSON PARK 9145 .0 .0 100* 22.0 14.7 150
HOLE-IN-ROCK 9150 .3 .0 * 23.5 14.5 162
INDIAN CREEK 9425 .0 .0 100* -M 34.5 *
KELLEY R.S. 8180 .0 .0 100* 36.1 28.1 128
STEEL CREEK PARK 10200 .0 .0 100* 36.6 25.6 143
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Basin wide percent of average * 141
UPPER BEAR RIVER
BUG LAKE 7950 .0 .0 100* 43.7 26.8 163
HAYDEN FORK 9212 .0 .0 100* 46.2 30.7 150
KELLEY R.S. 8180 .0 .0 100* 36.1 28.1 128
LILY LAKE 9156 .0 .0 100* 36.6 26.1 140
MONTE CRISTO 8960 .0 .0 100* 55.9 36.1 155
SALT RIVER SUMMIT 7760 .0 .0 100* 31.7 25.9 122
TRIAL LAKE 9992 .3 .0 * 51.1 35.9 142
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Basin wide percent of average * 144
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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.