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 TUESDAY: JULY 29 , 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 .3 .0 * 47.7 30.8 155
COTTONWOOD CREEK 7600 .0 .0 100* 48.2 34.3 141
GRANITE CREEK 6770 .0 .0 100* 41.6 33.7 123
GRASSY LAKE 7265 .0 .0 100* 71.4 51.0 140
GROS VENTRE SUMMIT 8775 .0 .0 100* 29.7 22.9 130
LEWIS LAKE DIVIDE 7860 .1 .0 * 71.6 51.8 138
PHILLIPS BENCH 8200 .0 .0 100* 60.9 40.8 149
SALT RIVER SUMMIT 7600 .1 .0 * 33.8 24.3 139
SNAKE RIVER STATION 6920 .0 .0 100* 48.9 35.8 137
SPRING CREEK DIVIDE 9000 -M .0 * -M 36.9 *
THUMB DIVIDE 7980 .0 .0 100* 44.9 28.9 155
TOGWOTEE PASS 9580 .1 .0 * 48.7 38.8 126
TWO OCEAN PLATEAU 9360 -M .0 * 59.3 42.4 140
WILLOW CREEK 8450 .1 .0 * 65.7 43.9 150
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Basin wide percent of average * 140
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .3 .0 * 42.2 29.4 144
BLACK BEAR 7950 -M .0 * 84.3 56.3 150
CANYON 7940 .3 .0 * 34.2 23.1 148
FISHER CREEK 9100 -M .0 * 67.5 53.4 126
MADISON PLATEAU 7750 .1 .0 * 51.8 37.8 137
NORTHEAST ENTRANCE 7350 .0 .0 100* 31.6 20.9 151
PARKER PEAK 9400 .3 .1 300* 35.2 26.8 131
SYLVAN LAKE 8420 .0 .0 100* 47.3 31.8 149
THUMB DIVIDE 7980 .0 .0 100* 44.9 28.9 155
TWO OCEAN PLATEAU 9360 -M .0 * 59.3 42.4 140
WHISKEY CREEK 6800 .4 .0 * 40.4 32.3 125
WHITE MILL 8700 -M .0 * 46.2 42.0 110
WOLVERINE 7650 .4 .0 * 25.0 22.6 111
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Basin wide percent of average 300* 136
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 36.2 25.6 141
CHRISTINA LAKE 9980 .0 .0 100* 32.0 27.5 116
COLD SPRINGS 9630 .2 .0 * 23.3 19.7 118
HOBBS PARK 10100 .0 .0 100* 23.4 24.7 95
LITTLE WARM 9620 .5 .0 * 30.9 23.0 134
SOUTH PASS 9040 .3 .0 * 31.5 27.8 113
ST. LAWRENCE ALT 8620 .0 .0 100* 20.7 18.2 114
TOGWOTEE PASS 9580 .1 .0 * 48.7 38.8 126
TOWNSEND CREEK 8700 .1 .0 * 23.0 22.2 104
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Basin wide percent of average * 119
BIGHORN BASIN
BALD MTN. 9375 .0 .0 100* 34.7 29.3 118
BEAR TRAP MEADOW 7900 .2 .0 * 21.9 17.6 124
BLACKWATER 9780 .2 .0 * 42.9 30.5 141
BONE SPRINGS DIV 9350 .2 .0 * 31.1 27.2 114
EVENING STAR 9200 .2 .1 200* 54.7 37.3 147
GRAVE SPRINGS 8550 .2 -M * 22.3 20.6 108
KIRWIN 9550 -M .0 * -M 21.4 *
LOST CREEK 8080 -M .0 * -M 22.9 *
MARQUETTE 8760 -M .0 * 25.8 21.9 118
MIDDLE POWDER 7760 .0 .0 100* 28.4 22.5 126
OWL CREEK 8975 .3 .0 * 16.5 14.3 115
POWDER RIVER PASS 9480 .3 .0 * 32.2 22.3 144
SHELL CREEK 9580 .1 .0 * 27.2 24.7 110
SYLVAN LAKE 8420 .0 .0 100* 47.3 31.8 149
SYLVAN ROAD 8120 .3 .0 * 36.3 27.1 134
TIMBER CREEK 7950 .3 .0 * 19.8 17.4 114
YOUNTS PEAK 8350 .4 .0 * 37.7 26.7 141
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Basin wide percent of average 200* 129
SHOSHONE RIVER
BLACKWATER 9780 .2 .0 * 42.9 30.5 141
EVENING STAR 9200 .2 .1 200* 54.7 37.3 147
KIRWIN 9550 -M .0 * -M 21.4 *
MARQUETTE 8760 -M .0 * 25.8 21.9 118
SYLVAN LAKE 8420 .0 .0 100* 47.3 31.8 149
SYLVAN ROAD 8120 .3 .0 * 36.3 27.1 134
YOUNTS PEAK 8350 .4 .0 * 37.7 26.7 141
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Basin wide percent of average 200* 140
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 21.9 17.6 124
BONE SPRINGS DIV 9350 .2 .0 * 31.1 27.2 114
BURGESS JUNCTION 7880 .1 .0 * 26.5 21.9 121
CLOUD PEAK RESERVOIR 9860 .2 .0 * 31.8 26.2 121
DOME LAKE 8880 .1 .0 * 29.6 24.2 122
GRAVE SPRINGS 8550 .2 -M * 22.3 20.6 108
HANSEN SAWMILL 8760 .0 .0 100* 23.1 17.3 134
LOST CREEK 8080 -M .0 * -M 22.9 *
MIDDLE POWDER 7760 .0 .0 100* 28.4 22.5 126
POWDER RIVER PASS 9480 .3 .0 * 32.2 22.3 144
SUCKER CREEK 8880 .0 .0 100* 30.8 25.2 122
TIE CREEK 6870 .0 -M * 30.7 21.0 146
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Basin wide percent of average * 125
BELLE FOURCHE
BLIND PARK 6890 -M .0 * -M 24.3 *
NORTH RAPID CREEK 6130 .2 -M * 30.9 -M *
WARREN PEAK 6520 .2 .0 * 33.1 18.4 180
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Basin wide percent of average * 180*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 44.0 33.8 130
DIVIDE PEAK 8800 .0 .0 100* 33.8 33.5 101
ELK RIVER 8700 .1 .0 * 34.7 27.6 126
JOE WRIGHT 10120 .0 .0 100* 44.1 40.2 110
NORTH FRENCH CREEK 10100 -M .0 * 41.9 36.0 116
OLD BATTLE 10000 .0 .0 100* 51.9 43.5 119
SOUTH BRUSH CREEK 8400 .0 .0 100* 26.4 27.3 97
TOWER 10500 1.4 .0 * 66.4 53.4 124
WEBBER SPRINGS 9200 .0 .0 100* 45.0 37.2 121
WILLOW CREEK PASS 9540 .1 .0 * 25.6 22.0 116
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Basin wide percent of average * 117
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 41.0 30.5 134
CASPER MTN. 7900 .0 .0 100* -M 26.9 *
CHRISTINA LAKE 9980 .0 .0 100* 32.0 27.5 116
DEADMAN HILL 10220 .0 .0 100* 29.3 28.9 101
LAPRELE CREEK 8320 .0 .0 100* 22.7 22.1 103
RENO HILL 8400 .0 .0 100* 30.9 28.3 109
ROACH 9700 .0 .0 100* 31.7 34.2 93
SAND LAKE 10080 .0 .0 100* 42.8 32.0 134
SOUTH PASS 9040 .3 .0 * 31.5 27.8 113
WINDY PEAK 7840 .0 .0 100* 19.4 19.8 98
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Basin wide percent of average * 112
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * 17.9 22.8 79
DIVIDE PEAK 8800 .0 .0 100* 33.8 33.5 101
OLD BATTLE 10000 .0 .0 100* 51.9 43.5 119
SANDSTONE RS 8150 .0 .0 100* 29.2 28.5 102
WHISKEY PARK 8950 .0 .0 100* 47.1 41.3 114
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Basin wide percent of average * 106
UPPER GREEN RIVER
BIG SANDY OPENING 9100 -M .0 * -M 23.4 *
BLIND BULL SUM 8650 .0 .0 100* 45.7 32.1 142
EAST RIM DIVIDE 7930 .1 .0 * 24.8 21.8 114
ELKHART PARK G.S. 9400 .0 .0 100* 27.3 23.0 119
GROS VENTRE SUMMIT 8775 .0 .0 100* 29.7 22.9 130
KENDALL R.S. 7740 .2 .0 * 32.4 22.3 145
LOOMIS PARK 8240 .0 .0 100* 37.1 27.1 137
NEW FORK LAKE 8340 .1 .0 * 21.4 20.8 103
SNIDER BASIN 8250 .1 .0 * 24.5 21.8 112
SPRING CREEK DIVIDE 9000 -M .0 * -M 36.9 *
TRIPLE PEAK 8500 .0 .0 100* 51.8 42.8 121
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Basin wide percent of average * 126
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 22.6 19.2 118
HEWINTA 9500 .0 .0 100* 23.0 22.6 102
HICKERSON PARK 9150 .0 .0 100* 17.1 18.8 91
HOLE-IN-ROCK 9150 .1 .0 * 17.6 18.8 94
INDIAN CREEK 9425 .1 .0 * 41.3 35.6 116
KELLEY R.S. 8180 .1 .0 * 39.1 27.0 145
STEEL CREEK PARK 10100 .2 .0 * 25.8 25.8 100
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Basin wide percent of average * 111
UPPER BEAR RIVER
BUG LAKE 7950 .2 .0 * 39.1 26.9 145
HAYDEN FORK 9400 .0 .0 100* 33.7 30.0 112
KELLEY R.S. 8180 .1 .0 * 39.1 27.0 145
LILY LAKE 9050 .2 .0 * 28.9 24.5 118
MONTE CRISTO 8960 .3 .0 * 45.2 36.6 123
SALT RIVER SUMMIT 7600 .1 .0 * 33.8 24.3 139
TRIAL LAKE 9960 -M .0 * 44.5 35.3 126
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Basin wide percent of average * 129
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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.