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 6 , 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* 38.7 29.2 133
COTTONWOOD CREEK 7670 .0 .0 100* 54.4 38.0 143
GRAND TARGHEE 9260 37.4 -M * 61.1 -M *
GRANITE CREEK 6770 .0 .0 100* 38.4 26.8 143
GRASSY LAKE 7265 -M .0 * 63.2 48.3 131
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 20.0 128
GUNSIGHT PASS 9820 .9 -M * 30.9 -M *
LEWIS LAKE DIVIDE 7850 .0 .0 100* 56.9 48.3 118
PHILLIPS BENCH 8200 .0 .0 100* 51.3 39.1 131
SALT RIVER SUMMIT 7760 .0 .0 100* 31.3 25.7 122
SNAKE RIVER STATION 6920 -M .0 * 40.7 30.9 132
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.0 *
THUMB DIVIDE 7980 .2 .0 * 33.7 27.0 125
TOGWOTEE PASS 9580 19.2 .0 * 49.2 35.2 140
TWO OCEAN PLATEAU 9240 20.0 2.3 870* 49.1 39.5 124
WILLOW CREEK 8380 .0 .0 100* 63.4 45.5 139
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Basin wide percent of average 1713* 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 10.2 1.1 927* 39.9 30.2 132
BLACK BEAR 8170 14.3 .9 1589* 70.1 53.8 130
CANYON 7870 .0 .0 100* 29.4 23.0 128
FISHER CREEK 9100 21.9 1.9 1153* 59.7 51.0 117
MADISON PLATEAU 7750 .0 .0 100* 50.3 37.2 135
NORTHEAST ENTRANCE 7350 .0 .0 100* 26.1 20.5 127
PARKER PEAK 9400 9.3 1.4 664* 44.6 26.4 169
SYLVAN LAKE 8420 .0 .0 100* 45.7 32.4 141
THUMB DIVIDE 7980 .2 .0 * 33.7 27.0 125
TWO OCEAN PLATEAU 9240 20.0 2.3 870* 49.1 39.5 124
WHISKEY CREEK 6800 .0 .0 100* 39.5 30.3 130
WHITE MILL 8700 5.2 .3 1733* 43.8 38.9 113
WOLVERINE 7650 .0 .0 100* 23.2 20.8 112
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Basin wide percent of average 1027* 129
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 30.5 24.9 122
CASTLE CREEK 8400 .0 -M * 15.6 -M *
COLD SPRINGS 9630 .0 .0 100* 22.2 19.6 113
DEER PARK 9700 .0 .0 100* 36.4 33.6 108
HOBBS PARK 10100 .0 .4 0* 29.6 23.7 125
LITTLE WARM 9370 .0 .0 100* 26.1 22.4 117
SOUTH PASS 9040 .0 .0 100* 27.5 28.3 97
ST. LAWRENCE ALT 8620 .0 .0 100* 21.4 17.7 121
TOGWOTEE PASS 9580 19.2 .0 * 49.2 35.2 140
TOWNSEND CREEK 8700 .0 .0 100* 23.6 21.2 111
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Basin wide percent of average 4800* 118
BIGHORN BASIN
BALD MTN. 9380 10.0 .4 2500* 38.0 28.6 133
BEAR TRAP MEADOW 8200 .0 .0 100* 21.7 17.2 126
BLACKWATER 9780 16.3 2.7 604* 44.3 32.7 135
BONE SPRINGS DIV 9350 .0 .0 100* 33.3 25.9 129
EVENING STAR 9200 10.4 2.4 433* 54.9 38.3 143
GRAVE SPRINGS 8550 .0 .0 100* 22.6 19.0 119
KIRWIN 9550 .0 .0 100* 25.2 20.7 122
MARQUETTE 8760 .0 -M * 22.0 21.5 102
MIDDLE POWDER 7760 .0 .0 100* 24.1 22.1 109
OWL CREEK 8975 .0 .0 100* 15.9 13.7 116
POWDER RIVER PASS 9480 .0 .0 100* 32.8 22.8 144
SHELL CREEK 9580 .0 .1 0* 32.4 24.2 134
SYLVAN LAKE 8420 .0 .0 100* 45.7 32.4 141
SYLVAN ROAD 7120 .0 .0 100* 33.9 26.0 130
TIMBER CREEK 7950 .0 .0 100* 17.5 16.9 104
YOUNTS PEAK 8350 .0 .0 100* 27.7 25.0 111
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Basin wide percent of average 655* 127
SHOSHONE RIVER
BLACKWATER 9780 16.3 2.7 604* 44.3 32.7 135
EVENING STAR 9200 10.4 2.4 433* 54.9 38.3 143
KIRWIN 9550 .0 .0 100* 25.2 20.7 122
MARQUETTE 8760 .0 -M * 22.0 21.5 102
SYLVAN LAKE 8420 .0 .0 100* 45.7 32.4 141
SYLVAN ROAD 7120 .0 .0 100* 33.9 26.0 130
YOUNTS PEAK 8350 .0 .0 100* 27.7 25.0 111
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Basin wide percent of average 524* 129
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .0 100* 21.7 17.2 126
BIG GOOSE 7990 .0 .0 100* 27.1 18.4 147
BONE SPRINGS DIV 9350 .0 .0 100* 33.3 25.9 129
BURGESS JUNCTION 7880 .0 .0 100* 27.9 21.6 129
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 32.7 25.3 129
DOME LAKE 8880 .0 .0 100* 29.9 23.6 127
GRAVE SPRINGS 8550 .0 .0 100* 22.6 19.0 119
HANSEN SAWMILL 8360 .0 .0 100* 22.6 17.3 131
LITTLE GOOSE 8870 .0 -M * 30.1 -M *
MIDDLE POWDER 7760 .0 .0 100* 24.1 22.1 109
POWDER RIVER PASS 9480 .0 .0 100* 32.8 22.8 144
SOLDIER PARK 8720 .0 -M * 22.5 -M *
SUCKER CREEK 8880 .0 .0 100* 33.9 24.9 136
TIE CREEK 6870 .0 .0 100* 27.7 20.4 136
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Basin wide percent of average * 130
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 31.8 21.5 148
COLE CANYON 5910 .0 .0 100* 28.0 17.0 165
NORTH RAPID CREEK 6130 .0 .0 100* 27.6 18.6 148
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Basin wide percent of average * 153
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 .0 -M * 59.1 -M *
CINNABAR PARK 9574 -M .0 * 48.2 28.9 167
COLUMBINE 9160 .0 .0 100* 50.0 33.9 147
DIVIDE PEAK 8880 .0 .0 100* 42.3 29.2 145
ELK RIVER 8700 .0 .0 100* 38.7 27.8 139
JOE WRIGHT 10120 1.8 .6 300* 56.5 37.7 150
NORTH FRENCH CREEK 10130 18.9 1.2 1575* -M 37.0 *
OLD BATTLE 10000 11.6 .6 1933* 68.7 46.4 148
SAGE CREEK BASIN 7850 -M .0 * -M 16.9 *
SOUTH BRUSH CREEK 8440 .0 .0 100* 34.0 25.9 131
TOWER 10500 29.9 5.3 564 76.9 52.6 146
WEBBER SPRINGS 9250 .0 .0 100* 52.2 36.6 143
WILLOW CREEK PASS 9540 .0 .0 100* 31.7 21.3 149
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Basin wide percent of average 808* 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .1 .0 * 47.9 33.5 143
CASPER MTN. 7900 .0 .0 100* 26.5 26.4 100
DEADMAN HILL 10220 -M .1 * 35.9 26.6 135
DEER PARK 9700 .0 .0 100* 36.4 33.6 108
LAPRELE CREEK 8375 .0 .0 100* 24.6 22.3 110
RENO HILL 8400 -M .0 * 29.9 26.8 112
ROACH 9700 .0 .0 100* 37.8 28.6 132
SAND LAKE 10050 17.8 1.6 1113* 54.8 36.9 149
SOUTH PASS 9040 .0 .0 100* 27.5 28.3 97
WINDY PEAK 7900 .0 .0 100* 21.7 19.4 112
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Basin wide percent of average 1119* 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .0 * -M 22.4 *
DIVIDE PEAK 8880 .0 .0 100* 42.3 29.2 145
OLD BATTLE 10000 11.6 .6 1933* 68.7 46.4 148
SANDSTONE RS 8150 .5 .0 * 39.5 26.5 149
WHISKEY PARK 8950 -M .0 * 60.5 40.1 151
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Basin wide percent of average 2017* 148
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* 25.9 20.7 125
BLIND BULL SUM 8650 8.0 .0 * 34.6 30.0 115
EAST RIM DIVIDE 7930 .0 .0 100* 21.7 17.7 123
ELKHART PARK G.S. 9400 .0 .0 100* 22.5 21.2 106
GROS VENTRE SUMMIT 8750 .0 .0 100* 25.6 20.0 128
GUNSIGHT PASS 9820 .9 -M * 30.9 -M *
KENDALL R.S. 7740 .0 .0 100* 24.0 20.3 118
LOOMIS PARK 8240 .1 .0 * 32.4 24.1 134
NEW FORK LAKE 8340 .0 .0 100* 18.9 17.8 106
POCKET CREEK 9360 .0 -M * 24.0 -M *
SNIDER BASIN 8060 .0 .0 100* 27.8 21.8 128
SPRING CREEK DIVIDE 9000 -M .0 * -M 35.0 *
TRIPLE PEAK 8500 .0 .0 100* 49.5 34.1 145
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Basin wide percent of average * 124
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.3 18.6 131
HEWINTA 9519 .0 .0 100* 30.0 22.1 136
HICKERSON PARK 9145 .0 .0 100* 20.6 14.4 143
HOLE-IN-ROCK 9150 .4 .0 * 21.9 14.2 154
INDIAN CREEK 9425 .7 .0 * 40.1 34.3 117
KELLEY R.S. 8180 .0 .0 100* 35.5 27.9 127
STEEL CREEK PARK 10200 .0 .1 0* 34.6 25.2 137
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Basin wide percent of average 1100* 132
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 43.2 26.7 162
HAYDEN FORK 9212 .0 .0 100* 45.1 30.4 148
KELLEY R.S. 8180 .0 .0 100* 35.5 27.9 127
LILY LAKE 9156 .0 .0 100* 35.6 25.9 137
MONTE CRISTO 8960 .6 .0 * 55.7 35.8 156
SALT RIVER SUMMIT 7760 .0 .0 100* 31.3 25.7 122
TRIAL LAKE 9992 1.3 .0 * 50.1 35.5 141
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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.