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 THURSDAY: AUGUST 28 , 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 * 50.3 32.1 157
COTTONWOOD CREEK 7600 .0 .0 100* 49.5 35.6 139
GRANITE CREEK 6770 .0 .0 100* 43.5 35.7 122
GRASSY LAKE 7265 .0 .0 100* 74.0 53.0 140
GROS VENTRE SUMMIT 8775 .0 .0 100* 32.4 24.1 134
LEWIS LAKE DIVIDE 7860 .0 .0 100* 74.0 53.9 137
PHILLIPS BENCH 8200 .0 .0 100* 62.7 42.5 148
SALT RIVER SUMMIT 7600 .1 .0 * 35.5 25.6 139
SNAKE RIVER STATION 6920 .0 .0 100* 51.9 37.2 140
SPRING CREEK DIVIDE 9000 .1 .0 * 45.0 38.2 118
THUMB DIVIDE 7980 .0 .0 100* 47.9 30.0 160
TOGWOTEE PASS 9580 .1 .0 * 54.7 40.5 135
TWO OCEAN PLATEAU 9360 .0 .0 100* 61.8 44.3 140
WILLOW CREEK 8450 .0 .0 100* 68.4 45.7 150
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Basin wide percent of average * 140
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .0 .0 100* 43.9 31.1 141
BLACK BEAR 7950 -M .0 * 86.4 58.5 148
CANYON 7940 .0 .0 100* 36.1 25.1 144
FISHER CREEK 9100 .6 .0 * 71.5 55.8 128
MADISON PLATEAU 7750 .0 .0 100* 54.5 39.9 137
NORTHEAST ENTRANCE 7350 .0 .0 100* 34.0 22.8 149
PARKER PEAK 9400 .1 .0 * 37.4 28.9 129
SYLVAN LAKE 8420 .0 .0 100* 49.2 34.2 144
THUMB DIVIDE 7980 .0 .0 100* 47.9 30.0 160
TWO OCEAN PLATEAU 9360 .0 .0 100* 61.8 44.3 140
WHISKEY CREEK 6800 .0 .0 100* 42.2 34.2 123
WHITE MILL 8700 .0 .0 100* 56.2 44.2 127
WOLVERINE 7650 .0 .0 100* -M 24.4 *
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Basin wide percent of average * 138
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 38.9 27.3 142
CHRISTINA LAKE 9980 -M .0 * -M 28.7 *
COLD SPRINGS 9630 .1 .0 * 25.7 20.8 124
HOBBS PARK 10100 .0 .0 100* 26.3 26.3 100
LITTLE WARM 9620 .0 .0 100* 33.2 24.6 135
SOUTH PASS 9040 .0 .0 100* 34.2 29.0 118
ST. LAWRENCE ALT 8620 .1 .0 * 24.0 19.2 125
TOGWOTEE PASS 9580 .1 .0 * 54.7 40.5 135
TOWNSEND CREEK 8700 .0 .0 100* 25.5 23.3 109
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Basin wide percent of average * 124
BIGHORN BASIN
BALD MTN. 9375 .1 .0 * 37.1 30.5 122
BEAR TRAP MEADOW 7900 .0 .0 100* 23.7 18.7 127
BLACKWATER 9780 .0 .0 100* 47.0 33.7 139
BONE SPRINGS DIV 9350 .1 .0 * 33.0 29.1 113
EVENING STAR 9200 .0 .0 100* -M 40.7 *
GRAVE SPRINGS 8550 .1 -M * 23.9 21.9 109
KIRWIN 9550 .0 .0 100* 31.7 23.4 135
LOST CREEK 8080 -M .0 * -M 24.1 *
MARQUETTE 8760 .2 .0 * 29.5 23.6 125
MIDDLE POWDER 7760 .0 .0 100* 31.2 23.7 132
OWL CREEK 8975 .0 .0 100* 18.5 15.5 119
POWDER RIVER PASS 9480 .1 .0 * 33.6 23.5 143
SHELL CREEK 9580 .1 .0 * 28.7 26.0 110
SYLVAN LAKE 8420 .0 .0 100* 49.2 34.2 144
SYLVAN ROAD 8120 .0 .0 100* 38.6 29.5 131
TIMBER CREEK 7950 .3 .0 * 22.0 19.0 116
YOUNTS PEAK 8350 -M .0 * 41.7 28.6 146
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Basin wide percent of average * 128
SHOSHONE RIVER
BLACKWATER 9780 .0 .0 100* 47.0 33.7 139
EVENING STAR 9200 .0 .0 100* -M 40.7 *
KIRWIN 9550 .0 .0 100* 31.7 23.4 135
MARQUETTE 8760 .2 .0 * 29.5 23.6 125
SYLVAN LAKE 8420 .0 .0 100* 49.2 34.2 144
SYLVAN ROAD 8120 .0 .0 100* 38.6 29.5 131
YOUNTS PEAK 8350 -M .0 * 41.7 28.6 146
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Basin wide percent of average * 137
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .0 100* 23.7 18.7 127
BONE SPRINGS DIV 9350 .1 .0 * 33.0 29.1 113
BURGESS JUNCTION 7880 .0 .0 100* 28.9 23.0 126
CLOUD PEAK RESERVOIR 9860 .0 .0 100* 35.1 27.7 127
DOME LAKE 8880 .0 .0 100* 31.7 25.5 124
GRAVE SPRINGS 8550 .1 -M * 23.9 21.9 109
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 .1 .0 * 33.6 23.5 143
SUCKER CREEK 8880 .0 .0 100* 32.3 26.6 121
TIE CREEK 6870 .1 -M * 33.9 22.1 153
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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 * 37.5 -M *
WARREN PEAK 6520 .0 .0 100* 34.6 20.2 171
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Basin wide percent of average * 142
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 46.9 35.6 132
DIVIDE PEAK 8800 .0 .0 100* 35.8 35.0 102
ELK RIVER 8700 .0 .0 100* -M 29.0 *
JOE WRIGHT 10120 .0 .0 100* -M 42.6 *
NORTH FRENCH CREEK 10100 .0 .0 100* 45.6 37.8 121
OLD BATTLE 10000 .0 .0 100* 55.0 45.2 122
SOUTH BRUSH CREEK 8400 .1 .0 * 29.1 28.8 101
TOWER 10500 .1 .0 * 69.9 55.7 125
WEBBER SPRINGS 9200 .0 .0 100* 47.7 38.6 124
WILLOW CREEK PASS 9540 .0 .0 100* 29.2 24.0 122
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Basin wide percent of average * 119
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 43.8 32.2 136
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 30.6 104
LAPRELE CREEK 8320 .0 .0 100* 25.5 23.5 109
RENO HILL 8400 .1 .0 * 32.3 29.3 110
ROACH 9700 .0 .0 100* 35.5 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 .2 .0 * 19.7 23.9 82
DIVIDE PEAK 8800 .0 .0 100* 35.8 35.0 102
OLD BATTLE 10000 .0 .0 100* 55.0 45.2 122
SANDSTONE RS 8150 .0 .0 100* 31.9 30.6 104
WHISKEY PARK 8950 .0 .0 100* 49.2 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* 48.2 33.3 145
EAST RIM DIVIDE 7930 .1 .0 * 27.9 23.0 121
ELKHART PARK G.S. 9400 .1 .0 * 30.6 24.2 126
GROS VENTRE SUMMIT 8775 .0 .0 100* 32.4 24.1 134
KENDALL R.S. 7740 .0 .0 100* 34.1 23.5 145
LOOMIS PARK 8240 .1 .0 * 40.2 28.5 141
NEW FORK LAKE 8340 .0 .0 100* 23.5 21.9 107
SNIDER BASIN 8250 .1 .0 * 26.3 23.0 114
SPRING CREEK DIVIDE 9000 .1 .0 * 45.0 38.2 118
TRIPLE PEAK 8500 .0 .0 100* 54.0 44.7 121
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Basin wide percent of average * 125
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 24.3 20.3 120
HEWINTA 9500 .1 .0 * 26.3 24.1 109
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* 43.1 37.0 116
KELLEY R.S. 8180 .0 .0 100* 40.5 28.4 143
STEEL CREEK PARK 10100 .0 .0 100* 27.3 28.1 97
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Basin wide percent of average * 112
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 42.2 28.0 151
HAYDEN FORK 9400 .0 .0 100* 37.9 31.3 121
KELLEY R.S. 8180 .0 .0 100* 40.5 28.4 143
LILY LAKE 9050 -M .0 * 30.5 25.9 118
MONTE CRISTO 8960 .2 .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 * 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.