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: AUGUST 27 , 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 .1 .0 * 50.2 32.1 156
COTTONWOOD CREEK 7600 .0 .0 100* 49.5 35.6 139
GRANITE CREEK 6770 .0 .0 100* 43.6 35.7 122
GRASSY LAKE 7265 .0 .0 100* 74.1 53.0 140
GROS VENTRE SUMMIT 8775 .0 .0 100* 32.5 24.1 135
LEWIS LAKE DIVIDE 7860 .1 .0 * 74.0 53.8 138
PHILLIPS BENCH 8200 .0 .0 100* 62.7 42.4 148
SALT RIVER SUMMIT 7600 .1 .0 * 35.5 25.6 139
SNAKE RIVER STATION 6920 -M .0 * -M 37.2 *
SPRING CREEK DIVIDE 9000 .0 .0 100* 45.1 38.2 118
THUMB DIVIDE 7980 -M .0 * -M 30.0 *
TOGWOTEE PASS 9580 .1 .0 * 54.7 40.4 135
TWO OCEAN PLATEAU 9360 .0 .0 100* 61.8 44.2 140
WILLOW CREEK 8450 .0 .0 100* 68.4 45.6 150
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Basin wide percent of average * 139
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .0 .0 100* -M 31.0 *
BLACK BEAR 7950 -M .0 * 86.6 58.4 148
CANYON 7940 .0 .0 100* 36.2 25.1 144
FISHER CREEK 9100 -M .0 * -M 55.7 *
MADISON PLATEAU 7750 .0 .0 100* 54.5 39.8 137
NORTHEAST ENTRANCE 7350 -M .0 * 34.0 22.7 150
PARKER PEAK 9400 .2 .0 * 37.4 28.8 130
SYLVAN LAKE 8420 .0 .0 100* 49.1 34.1 144
THUMB DIVIDE 7980 -M .0 * -M 30.0 *
TWO OCEAN PLATEAU 9360 .0 .0 100* 61.8 44.2 140
WHISKEY CREEK 6800 .0 .0 100* 42.1 34.1 123
WHITE MILL 8700 -M .0 * -M 44.1 *
WOLVERINE 7650 .0 .0 100* 26.9 24.3 111
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Basin wide percent of average * 138
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 38.9 27.2 143
CHRISTINA LAKE 9980 -M .0 * -M 28.7 *
COLD SPRINGS 9630 .1 .0 * 25.7 20.7 124
HOBBS PARK 10100 .0 .0 100* 26.3 26.2 100
LITTLE WARM 9620 .0 .0 100* 33.2 24.5 136
SOUTH PASS 9040 .0 .0 100* 34.2 29.0 118
ST. LAWRENCE ALT 8620 .2 .0 * 23.9 19.2 124
TOGWOTEE PASS 9580 .1 .0 * 54.7 40.4 135
TOWNSEND CREEK 8700 .1 .0 * 25.5 23.3 109
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Basin wide percent of average * 125
BIGHORN BASIN
BALD MTN. 9375 .1 .0 * 37.1 30.5 122
BEAR TRAP MEADOW 7900 .0 .0 100* 23.8 18.7 127
BLACKWATER 9780 .0 .0 100* 46.9 33.6 140
BONE SPRINGS DIV 9350 .1 .0 * 33.0 29.1 113
EVENING STAR 9200 .0 .0 100* 57.3 40.6 141
GRAVE SPRINGS 8550 .1 -M * 24.0 21.9 110
KIRWIN 9550 .0 .0 100* 31.6 23.3 136
LOST CREEK 8080 -M .0 * -M 24.1 *
MARQUETTE 8760 .2 .0 * 29.5 23.5 126
MIDDLE POWDER 7760 .0 .0 100* 31.2 23.7 132
OWL CREEK 8975 .0 .0 100* 18.6 15.4 121
POWDER RIVER PASS 9480 .2 .0 * 33.6 23.5 143
SHELL CREEK 9580 .1 .0 * 28.4 26.0 109
SYLVAN LAKE 8420 .0 .0 100* 49.1 34.1 144
SYLVAN ROAD 8120 .0 .0 100* 38.6 29.4 131
TIMBER CREEK 7950 .4 .0 * 22.0 18.9 116
YOUNTS PEAK 8350 -M .0 * 41.7 28.6 146
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Basin wide percent of average * 130
SHOSHONE RIVER
BLACKWATER 9780 .0 .0 100* 46.9 33.6 140
EVENING STAR 9200 .0 .0 100* 57.3 40.6 141
KIRWIN 9550 .0 .0 100* 31.6 23.3 136
MARQUETTE 8760 .2 .0 * 29.5 23.5 126
SYLVAN LAKE 8420 .0 .0 100* 49.1 34.1 144
SYLVAN ROAD 8120 .0 .0 100* 38.6 29.4 131
YOUNTS PEAK 8350 -M .0 * 41.7 28.6 146
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Basin wide percent of average * 138
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 23.8 18.7 127
BONE SPRINGS DIV 9350 .1 .0 * 33.0 29.1 113
BURGESS JUNCTION 7880 .0 .0 100* 28.9 22.9 126
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 35.2 27.7 127
DOME LAKE 8880 .0 .0 100* 31.7 25.5 124
GRAVE SPRINGS 8550 .1 -M * 24.0 21.9 110
HANSEN SAWMILL 8760 .0 .0 100* 25.4 18.7 136
LOST CREEK 8080 -M .0 * -M 24.1 *
MIDDLE POWDER 7760 .0 .0 100* 31.2 23.7 132
POWDER RIVER PASS 9480 .2 .0 * 33.6 23.5 143
SUCKER CREEK 8880 .0 .0 100* 32.3 26.6 121
TIE CREEK 6870 .1 -M * 33.9 22.0 154
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Basin wide percent of average * 128
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 31.2 26.3 119
NORTH RAPID CREEK 6130 .2 -M * 37.4 -M *
WARREN PEAK 6520 -M .0 * -M 20.1 *
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Basin wide percent of average * 119*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* -M 35.5 *
DIVIDE PEAK 8800 .0 .0 100* 35.6 34.9 102
ELK RIVER 8700 .0 .0 100* 37.8 29.0 130
JOE WRIGHT 10120 .0 .0 100* 44.1 42.5 104
NORTH FRENCH CREEK 10100 .0 .0 100* 45.5 37.7 121
OLD BATTLE 10000 .0 .0 100* 54.8 45.1 122
SOUTH BRUSH CREEK 8400 .1 .0 * 29.0 28.8 101
TOWER 10500 .4 .0 * -M 55.6 *
WEBBER SPRINGS 9200 .0 .0 100* 47.5 38.6 123
WILLOW CREEK PASS 9540 .0 .0 100* -M 24.0 *
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Basin wide percent of average * 115
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 43.8 32.1 136
CASPER MTN. 7900 .0 .0 100* 32.3 28.1 115
CHRISTINA LAKE 9980 -M .0 * -M 28.7 *
DEADMAN HILL 10220 .0 .0 100* 31.9 30.5 105
LAPRELE CREEK 8320 .0 .0 100* 25.5 23.5 109
RENO HILL 8400 .1 .0 * 32.2 29.3 110
ROACH 9700 .0 .0 100* 35.6 35.5 100
SAND LAKE 10080 .1 .0 * 45.2 33.1 137
SOUTH PASS 9040 .0 .0 100* 34.2 29.0 118
WINDY PEAK 7840 .2 .0 * 23.4 20.7 113
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Basin wide percent of average * 116
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * 19.7 23.9 82
DIVIDE PEAK 8800 .0 .0 100* 35.6 34.9 102
OLD BATTLE 10000 .0 .0 100* 54.8 45.1 122
SANDSTONE RS 8150 .0 .0 100* 31.7 30.5 104
WHISKEY PARK 8950 .0 .0 100* 49.1 42.7 115
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Basin wide percent of average * 108
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 24.7 24.6 100
BLIND BULL SUM 8650 .0 .0 100* 48.3 33.3 145
EAST RIM DIVIDE 7930 .2 .0 * 27.9 23.0 121
ELKHART PARK G.S. 9400 .1 .0 * 30.5 24.2 126
GROS VENTRE SUMMIT 8775 .0 .0 100* 32.5 24.1 135
KENDALL R.S. 7740 .1 .0 * 34.1 23.5 145
LOOMIS PARK 8240 .2 .0 * 40.3 28.5 141
NEW FORK LAKE 8340 .0 .0 100* 23.6 21.9 108
SNIDER BASIN 8250 .1 .0 * 26.3 23.0 114
SPRING CREEK DIVIDE 9000 .0 .0 100* 45.1 38.2 118
TRIPLE PEAK 8500 .0 .0 100* 54.0 44.6 121
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Basin wide percent of average * 125
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.3 20.2 120
HEWINTA 9500 .1 .0 * 26.5 24.1 110
HICKERSON PARK 9150 .0 .0 100* 18.8 20.3 93
HOLE-IN-ROCK 9150 .0 .0 100* 19.8 20.3 98
INDIAN CREEK 9425 .0 .0 100* 43.2 37.0 117
KELLEY R.S. 8180 .0 .0 100* 40.6 28.4 143
STEEL CREEK PARK 10100 .0 .0 100* 26.9 28.0 96
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Basin wide percent of average * 112
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 42.1 27.9 151
HAYDEN FORK 9400 .0 .0 100* 37.9 31.3 121
KELLEY R.S. 8180 .0 .0 100* 40.6 28.4 143
LILY LAKE 9050 -M .0 * 30.5 25.9 118
MONTE CRISTO 8960 .1 .0 * 48.1 38.0 127
SALT RIVER SUMMIT 7600 .1 .0 * 35.5 25.6 139
TRIAL LAKE 9960 .3 .0 * 47.2 37.2 127
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Basin wide percent of average * 132
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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.