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 SATURDAY: AUGUST 9 , 1997
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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 * 48.9 31.3 156
COTTONWOOD CREEK 7600 .0 .0 100* 48.8 34.8 140
GRANITE CREEK 6770 -M .0 * 42.7 34.4 124
GRASSY LAKE 7265 .0 .0 100* 72.3 51.7 140
GROS VENTRE SUMMIT 8775 .0 .0 100* 31.2 23.3 134
LEWIS LAKE DIVIDE 7860 .0 .0 100* 72.4 52.6 138
PHILLIPS BENCH 8200 .0 .0 100* 61.6 41.4 149
SALT RIVER SUMMIT 7600 .1 .0 * 34.0 24.8 137
SNAKE RIVER STATION 6920 .0 .0 100* 50.1 36.3 138
SPRING CREEK DIVIDE 9000 .1 .0 * 43.7 37.4 117
THUMB DIVIDE 7980 .0 .0 100* 46.1 29.3 157
TOGWOTEE PASS 9580 .1 .0 * 52.4 39.4 133
TWO OCEAN PLATEAU 9360 .0 .0 100* 60.7 43.1 141
WILLOW CREEK 8450 .0 .0 100* 66.7 44.6 150
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Basin wide percent of average * 140
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .3 .0 * 42.3 30.0 141
BLACK BEAR 7950 -M .0 * 85.4 57.1 150
CANYON 7940 .0 .0 100* 34.9 23.8 147
FISHER CREEK 9100 .4 .0 * 68.5 54.3 126
MADISON PLATEAU 7750 .0 .0 100* 53.3 38.6 138
NORTHEAST ENTRANCE 7350 .0 .0 100* 32.3 21.6 150
PARKER PEAK 9400 .2 .0 * 35.7 27.6 129
SYLVAN LAKE 8420 .0 .0 100* 48.0 32.7 147
THUMB DIVIDE 7980 .0 .0 100* 46.1 29.3 157
TWO OCEAN PLATEAU 9360 .0 .0 100* 60.7 43.1 141
WHISKEY CREEK 6800 .4 .0 * 41.5 33.0 126
WHITE MILL 8700 .0 .0 100* 53.7 42.8 125
WOLVERINE 7650 .3 .0 * 25.0 23.3 107
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Basin wide percent of average * 137
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 37.2 26.2 142
CHRISTINA LAKE 9980 .0 .0 100* 33.6 28.0 120
COLD SPRINGS 9630 .2 .0 * 24.9 20.2 123
HOBBS PARK 10100 .0 .0 100* 25.4 25.3 100
LITTLE WARM 9620 .4 .0 * 31.7 23.6 134
SOUTH PASS 9040 .3 .0 * 32.9 28.3 116
ST. LAWRENCE ALT 8620 .0 .0 100* 22.8 18.6 123
TOGWOTEE PASS 9580 .1 .0 * 52.4 39.4 133
TOWNSEND CREEK 8700 .0 .0 100* 25.0 22.6 111
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Basin wide percent of average * 123
BIGHORN BASIN
BALD MTN. 9375 .1 .0 * 35.7 29.8 120
BEAR TRAP MEADOW 7900 .1 .0 * 23.3 18.0 129
BLACKWATER 9780 .1 .0 * 44.8 31.7 141
BONE SPRINGS DIV 9350 .1 .0 * 31.6 27.9 113
EVENING STAR 9200 .1 .0 * 55.4 38.5 144
GRAVE SPRINGS 8550 -M -M * 23.0 21.1 109
KIRWIN 9550 .1 .0 * 29.7 22.2 134
LOST CREEK 8080 -M .0 * -M 23.4 *
MARQUETTE 8760 .0 .0 100* 28.0 22.5 124
MIDDLE POWDER 7760 .0 .0 100* 30.6 22.9 134
OWL CREEK 8975 .3 .0 * 17.7 14.8 120
POWDER RIVER PASS 9480 .4 .0 * 32.9 22.7 145
SHELL CREEK 9580 .1 .0 * 27.5 25.2 109
SYLVAN LAKE 8420 .0 .0 100* 48.0 32.7 147
SYLVAN ROAD 8120 .0 .0 100* 37.2 27.9 133
TIMBER CREEK 7950 .0 .0 100* 21.0 18.0 117
YOUNTS PEAK 8350 -M .0 * -M 27.4 *
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Basin wide percent of average * 129
SHOSHONE RIVER
BLACKWATER 9780 .1 .0 * 44.8 31.7 141
EVENING STAR 9200 .1 .0 * 55.4 38.5 144
KIRWIN 9550 .1 .0 * 29.7 22.2 134
MARQUETTE 8760 .0 .0 100* 28.0 22.5 124
SYLVAN LAKE 8420 .0 .0 100* 48.0 32.7 147
SYLVAN ROAD 8120 .0 .0 100* 37.2 27.9 133
YOUNTS PEAK 8350 -M .0 * -M 27.4 *
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Basin wide percent of average * 139
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .1 .0 * 23.3 18.0 129
BONE SPRINGS DIV 9350 .1 .0 * 31.6 27.9 113
BURGESS JUNCTION 7880 .1 .0 * 26.7 22.4 119
CLOUD PEAK RESERVOIR 9860 .0 .0 100* -M 26.8 *
DOME LAKE 8880 -M .0 * 31.0 24.7 126
GRAVE SPRINGS 8550 -M -M * 23.0 21.1 109
HANSEN SAWMILL 8760 .0 .0 100* 24.6 17.8 138
LOST CREEK 8080 -M .0 * -M 23.4 *
MIDDLE POWDER 7760 .0 .0 100* 30.6 22.9 134
POWDER RIVER PASS 9480 .4 .0 * 32.9 22.7 145
SUCKER CREEK 8880 .1 .0 * 30.6 25.8 119
TIE CREEK 6870 .1 -M * 31.1 21.5 145
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Basin wide percent of average * 127
BELLE FOURCHE
BLIND PARK 6890 -M .0 * 30.4 25.0 122
NORTH RAPID CREEK 6130 .5 -M * 34.9 -M *
WARREN PEAK 6520 -M .0 * 33.8 19.1 177
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Basin wide percent of average * 146
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 45.1 34.5 131
DIVIDE PEAK 8800 .0 .0 100* 35.5 34.0 104
ELK RIVER 8700 .1 .0 * 37.6 28.1 134
JOE WRIGHT 10120 .0 .0 100* 44.1 41.1 107
NORTH FRENCH CREEK 10100 .4 .0 * 44.1 36.7 120
OLD BATTLE 10000 .0 .0 100* 52.5 44.1 119
SOUTH BRUSH CREEK 8400 .0 .0 100* 28.0 27.9 100
TOWER 10500 .2 .0 * 68.3 54.2 126
WEBBER SPRINGS 9200 .0 .0 100* 46.4 37.8 123
WILLOW CREEK PASS 9540 .0 .0 100* 27.8 22.7 122
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Basin wide percent of average * 119
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 42.3 31.1 136
CASPER MTN. 7900 .0 .0 100* 31.0 27.4 113
CHRISTINA LAKE 9980 .0 .0 100* 33.6 28.0 120
DEADMAN HILL 10220 .0 .0 100* 30.5 29.5 103
LAPRELE CREEK 8320 .0 .0 100* 23.8 22.7 105
RENO HILL 8400 .0 .0 100* 31.3 28.7 109
ROACH 9700 .0 .0 100* 33.9 34.7 98
SAND LAKE 10080 .0 .0 100* 43.7 32.4 135
SOUTH PASS 9040 .3 .0 * 32.9 28.3 116
WINDY PEAK 7840 .1 .0 * 21.6 20.2 107
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Basin wide percent of average * 115
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * 18.5 23.2 80
DIVIDE PEAK 8800 .0 .0 100* 35.5 34.0 104
OLD BATTLE 10000 .0 .0 100* 52.5 44.1 119
SANDSTONE RS 8150 .0 .0 100* 30.0 29.3 102
WHISKEY PARK 8950 .0 .0 100* 47.7 41.9 114
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Basin wide percent of average * 107
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 24.1 23.8 101
BLIND BULL SUM 8650 .0 .0 100* 46.4 32.5 143
EAST RIM DIVIDE 7930 .1 .0 * -M 22.2 *
ELKHART PARK G.S. 9400 .0 .0 100* 28.5 23.4 122
GROS VENTRE SUMMIT 8775 .0 .0 100* 31.2 23.3 134
KENDALL R.S. 7740 .0 .0 100* 33.2 22.7 146
LOOMIS PARK 8240 .0 .0 100* 38.4 27.6 139
NEW FORK LAKE 8340 .0 .0 100* 22.1 21.2 104
SNIDER BASIN 8250 .1 .0 * 25.5 22.2 115
SPRING CREEK DIVIDE 9000 .1 .0 * 43.7 37.4 117
TRIPLE PEAK 8500 .0 .0 100* 53.1 43.5 122
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Basin wide percent of average * 125
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 23.4 19.6 119
HEWINTA 9500 .1 .0 * 24.4 23.2 105
HICKERSON PARK 9150 .0 .0 100* 17.9 19.4 92
HOLE-IN-ROCK 9150 .1 .0 * 18.7 19.4 96
INDIAN CREEK 9425 .0 .0 100* 42.5 36.1 118
KELLEY R.S. 8180 .0 .0 100* 39.7 27.5 144
STEEL CREEK PARK 10100 -M .0 * 26.9 26.7 101
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Basin wide percent of average * 113
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 40.2 27.3 147
HAYDEN FORK 9400 .0 .0 100* 35.5 30.5 116
KELLEY R.S. 8180 .0 .0 100* 39.7 27.5 144
LILY LAKE 9050 .0 .0 100* 29.4 25.0 118
MONTE CRISTO 8960 .3 .0 * 46.0 37.1 124
SALT RIVER SUMMIT 7600 .1 .0 * 34.0 24.8 137
TRIAL LAKE 9960 .1 .0 * -M 36.0 *
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Basin wide percent of average * 131
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-M = Missing data
* = Data may not provide a valid measure of conditions.
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 1961-90.
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.