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 SUNDAY: JULY 6 , 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 .2 .0 * 44.9 29.8 151
COTTONWOOD CREEK 7600 .0 .0 100* 46.0 33.1 139
GRANITE CREEK 6770 .0 .0 100* 39.7 32.4 123
GRASSY LAKE 7265 .0 .0 100* 69.7 49.4 141
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.8 21.9 127
LEWIS LAKE DIVIDE 7860 .3 .0 * 70.0 50.2 139
PHILLIPS BENCH 8200 .0 .0 100* 58.0 39.5 147
SALT RIVER SUMMIT 7600 .0 .0 100* 32.0 23.2 138
SNAKE RIVER STATION 6920 .0 .0 100* 46.8 34.6 135
SPRING CREEK DIVIDE 9000 .0 .0 100* 41.8 35.8 117
THUMB DIVIDE 7980 .0 .0 100* 42.9 27.9 154
TOGWOTEE PASS 9580 .2 .0 * 45.0 37.7 119
TWO OCEAN PLATEAU 9360 -M .0 * 56.2 41.1 137
WILLOW CREEK 8450 .0 .0 100* 62.1 42.6 146
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Basin wide percent of average * 137
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .3 1.1 27* 40.9 27.8 147
BLACK BEAR 7950 -M .8 * 83.1 54.7 152
CANYON 7940 .2 .0 * 32.9 21.8 151
FISHER CREEK 9100 2.0 3.8 53* 65.1 51.4 127
MADISON PLATEAU 7750 .0 .0 100* 50.2 36.6 137
NORTHEAST ENTRANCE 7350 .1 .0 * 29.7 19.3 154
PARKER PEAK 9400 .2 2.5 8 33.8 25.1 135
SYLVAN LAKE 8420 .0 .0 100* 44.8 29.9 150
THUMB DIVIDE 7980 .0 .0 100* 42.9 27.9 154
TWO OCEAN PLATEAU 9360 -M .0 * 56.2 41.1 137
WHISKEY CREEK 6800 .3 .0 * 40.1 30.9 130
WHITE MILL 8700 .8 1.3 62* 44.1 40.2 110
WOLVERINE 7650 .3 .0 * 23.9 20.9 114
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Basin wide percent of average 38* 137
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 33.6 24.5 137
CHRISTINA LAKE 9980 .0 .0 100* 31.5 26.0 121
COLD SPRINGS 9630 .2 .0 * 22.0 18.4 120
HOBBS PARK 10100 .0 .1 0* 23.8 23.4 102
LITTLE WARM 9620 .3 .0 * 29.5 21.5 137
SOUTH PASS 9040 .2 .0 * 31.9 26.6 120
ST. LAWRENCE ALT 8620 .0 .0 100* 20.2 17.0 119
TOGWOTEE PASS 9580 .2 .0 * 45.0 37.7 119
TOWNSEND CREEK 8700 .0 .0 100* 22.2 21.0 106
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Basin wide percent of average 0* 120
BIGHORN BASIN
BALD MTN. 9375 .1 .5 20* 31.7 28.0 113
BEAR TRAP MEADOW 7900 .1 .0 * 19.0 16.6 114
BLACKWATER 9780 .2 1.5 13* 40.7 28.4 143
BONE SPRINGS DIV 9350 .1 .0 * 28.4 25.6 111
EVENING STAR 9200 .1 4.0 3 52.8 34.7 152
GRAVE SPRINGS 8550 .0 -M * 19.0 19.4 98
KIRWIN 9550 .2 .0 * 26.8 19.0 141
LOST CREEK 8080 -M .0 * -M 21.7 *
MARQUETTE 8760 .0 .0 100* 23.7 20.3 117
MIDDLE POWDER 7760 .0 .0 100* 25.8 21.3 121
OWL CREEK 8975 .2 .0 * 15.0 12.9 116
POWDER RIVER PASS 9480 .1 .0 * 28.3 21.2 133
SHELL CREEK 9580 .0 .0 100* 24.7 23.5 105
SYLVAN LAKE 8420 .0 .0 100* 44.8 29.9 150
SYLVAN ROAD 8120 .2 .0 * 35.0 25.3 138
TIMBER CREEK 7950 .2 .0 * 17.7 16.2 109
YOUNTS PEAK 8350 .7 .0 * 35.8 25.1 143
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Basin wide percent of average 7* 128
SHOSHONE RIVER
BLACKWATER 9780 .2 1.5 13* 40.7 28.4 143
EVENING STAR 9200 .1 4.0 3 52.8 34.7 152
KIRWIN 9550 .2 .0 * 26.8 19.0 141
MARQUETTE 8760 .0 .0 100* 23.7 20.3 117
SYLVAN LAKE 8420 .0 .0 100* 44.8 29.9 150
SYLVAN ROAD 8120 .2 .0 * 35.0 25.3 138
YOUNTS PEAK 8350 .7 .0 * 35.8 25.1 143
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Basin wide percent of average 5* 142
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .1 .0 * 19.0 16.6 114
BONE SPRINGS DIV 9350 .1 .0 * 28.4 25.6 111
BURGESS JUNCTION 7880 .1 .0 * 23.8 20.4 117
CLOUD PEAK RESERVOIR 9860 .1 .0 * 28.5 24.8 115
DOME LAKE 8880 .1 .0 * 25.8 23.0 112
GRAVE SPRINGS 8550 .0 -M * 19.0 19.4 98
HANSEN SAWMILL 8760 .0 .0 100* 20.7 16.2 128
LOST CREEK 8080 -M .0 * -M 21.7 *
MIDDLE POWDER 7760 .0 .0 100* 25.8 21.3 121
POWDER RIVER PASS 9480 .1 .0 * 28.3 21.2 133
SUCKER CREEK 8880 .1 .0 * 28.8 23.8 121
TIE CREEK 6870 .0 -M * 26.6 19.6 136
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Basin wide percent of average * 118
BELLE FOURCHE
BLIND PARK 6890 .3 .0 * 24.7 22.6 109
NORTH RAPID CREEK 6130 .0 -M * 23.9 -M *
WARREN PEAK 6520 .1 .0 * 31.2 17.0 184
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Basin wide percent of average * 141
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 43.0 32.6 132
DIVIDE PEAK 8800 .0 .0 100* 33.4 32.3 103
ELK RIVER 8700 .1 .0 * 34.8 26.4 132
JOE WRIGHT 10120 .0 .8 0* 44.1 37.8 117
NORTH FRENCH CREEK 10100 .0 .0 100* 41.1 34.6 119
OLD BATTLE 10000 .0 1.7 0* 50.5 42.2 120
SOUTH BRUSH CREEK 8400 .0 .0 100* 25.9 26.1 99
TOWER 10500 14.9 6.6 226 66.5 51.9 128
WEBBER SPRINGS 9200 .0 .0 100* 44.9 36.0 125
WILLOW CREEK PASS 9540 .1 .0 * 24.4 20.7 118
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Basin wide percent of average 164* 120
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .1 .0 * 38.3 29.2 131
CASPER MTN. 7900 .0 .0 100* 30.4 25.8 118
CHRISTINA LAKE 9980 .0 .0 100* 31.5 26.0 121
DEADMAN HILL 10220 .2 .0 * 28.8 27.1 106
LAPRELE CREEK 8320 .0 .0 100* 22.5 20.8 108
RENO HILL 8400 .1 .0 * 31.0 27.1 114
ROACH 9700 .0 .0 100* 31.4 32.6 96
SAND LAKE 10080 .0 1.7 0* 41.5 31.1 133
SOUTH PASS 9040 .2 .0 * 31.9 26.6 120
WINDY PEAK 7840 .1 .0 * 18.7 18.3 102
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Basin wide percent of average 0* 116
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .5 .0 * 17.4 22.0 79
DIVIDE PEAK 8800 .0 .0 100* 33.4 32.3 103
OLD BATTLE 10000 .0 1.7 0* 50.5 42.2 120
SANDSTONE RS 8150 .0 .0 100* 29.1 27.4 106
WHISKEY PARK 8950 .0 .0 100* 45.9 39.8 115
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Basin wide percent of average 0* 108
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.7 22.3 102
BLIND BULL SUM 8650 .0 .0 100* 42.6 31.2 137
EAST RIM DIVIDE 7930 .0 .0 100* 23.4 20.9 112
ELKHART PARK G.S. 9400 .0 .0 100* 26.6 22.0 121
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.8 21.9 127
KENDALL R.S. 7740 .1 .0 * 31.0 21.4 145
LOOMIS PARK 8240 .0 .0 100* 35.8 25.9 138
NEW FORK LAKE 8340 .0 .0 100* 20.3 19.9 102
SNIDER BASIN 8250 .0 .0 100* 23.7 20.9 113
SPRING CREEK DIVIDE 9000 .0 .0 100* 41.8 35.8 117
TRIPLE PEAK 8500 .0 .0 100* 49.6 41.5 120
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Basin wide percent of average * 122
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 21.7 18.4 118
HEWINTA 9500 .0 .0 100* 20.9 21.3 98
HICKERSON PARK 9150 .0 .0 100* 15.4 17.5 88
HOLE-IN-ROCK 9150 .0 .0 100* 16.4 17.5 94
INDIAN CREEK 9425 .0 .0 100* 40.2 34.4 117
KELLEY R.S. 8180 .0 .0 100* 37.3 25.8 145
STEEL CREEK PARK 10100 .1 .0 * 24.0 23.8 101
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Basin wide percent of average * 111
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 38.1 26.5 144
HAYDEN FORK 9400 .0 .0 100* 34.1 28.6 119
KELLEY R.S. 8180 .0 .0 100* 37.3 25.8 145
LILY LAKE 9050 .0 .0 100* 27.4 23.3 118
MONTE CRISTO 8960 .0 .0 100* 43.8 35.9 122
SALT RIVER SUMMIT 7600 .0 .0 100* 32.0 23.2 138
TRIAL LAKE 9960 .0 .0 100* 43.2 34.0 127
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Basin wide percent of average * 130
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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.