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: JULY 12 , 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 * 45.0 30.1 150
COTTONWOOD CREEK 7600 .0 .0 100* 46.2 33.4 138
GRANITE CREEK 6770 .0 .0 100* 39.7 32.7 121
GRASSY LAKE 7265 .0 .0 100* 70.2 49.8 141
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.9 22.2 126
LEWIS LAKE DIVIDE 7860 .3 .0 * 70.3 50.6 139
PHILLIPS BENCH 8200 .0 .0 100* 57.9 39.8 145
SALT RIVER SUMMIT 7600 .0 .0 100* 32.4 23.5 138
SNAKE RIVER STATION 6920 .0 .0 100* 47.0 34.9 135
SPRING CREEK DIVIDE 9000 .0 .0 100* 42.0 36.1 116
THUMB DIVIDE 7980 .0 .0 100* 43.3 28.2 154
TOGWOTEE PASS 9580 .2 .0 * 45.1 38.0 119
TWO OCEAN PLATEAU 9360 -M .0 * 56.4 41.4 136
WILLOW CREEK 8450 .0 .0 100* 62.8 42.9 146
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Basin wide percent of average * 136
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .2 .4 50* 41.1 28.2 146
BLACK BEAR 7950 -M .3 * 83.2 55.1 151
CANYON 7940 .2 .0 * 33.5 22.1 152
FISHER CREEK 9100 .8 1.3 62* 66.0 51.9 127
MADISON PLATEAU 7750 .0 .0 100* 50.4 36.9 137
NORTHEAST ENTRANCE 7350 .1 .0 * 30.5 19.7 155
PARKER PEAK 9400 .2 1.3 15* 33.8 25.5 133
SYLVAN LAKE 8420 .0 .0 100* 45.2 30.4 149
THUMB DIVIDE 7980 .0 .0 100* 43.3 28.2 154
TWO OCEAN PLATEAU 9360 -M .0 * 56.4 41.4 136
WHISKEY CREEK 6800 .3 .0 * 39.7 31.3 127
WHITE MILL 8700 .7 .4 175* 44.6 40.7 110
WOLVERINE 7650 .3 .0 * 23.9 21.3 112
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Basin wide percent of average 56* 137
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 33.6 24.8 135
CHRISTINA LAKE 9980 .0 .0 100* 31.4 26.4 119
COLD SPRINGS 9630 .2 .0 * 22.0 18.7 118
HOBBS PARK 10100 .0 .0 100* 23.1 23.7 97
LITTLE WARM 9620 .4 .0 * 29.5 21.9 135
SOUTH PASS 9040 .2 .0 * 31.7 26.9 118
ST. LAWRENCE ALT 8620 .0 .0 100* 20.2 17.3 117
TOGWOTEE PASS 9580 .2 .0 * 45.1 38.0 119
TOWNSEND CREEK 8700 .0 .0 100* 22.1 21.3 104
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Basin wide percent of average * 118
BIGHORN BASIN
BALD MTN. 9375 .1 .2 50* 31.7 28.3 112
BEAR TRAP MEADOW 7900 .1 .0 * 19.4 16.9 115
BLACKWATER 9780 .1 .6 17* 40.5 28.9 140
BONE SPRINGS DIV 9350 .1 .0 * 28.6 26.0 110
EVENING STAR 9200 .1 1.6 6* 53.1 35.4 150
GRAVE SPRINGS 8550 .0 -M * 19.1 19.7 97
KIRWIN 9550 .2 .0 * 26.8 19.6 137
LOST CREEK 8080 -M .0 * -M 22.0 *
MARQUETTE 8760 .0 .0 100* 23.6 20.7 114
MIDDLE POWDER 7760 .0 .0 100* 26.1 21.6 121
OWL CREEK 8975 .3 .0 * 14.8 13.3 111
POWDER RIVER PASS 9480 .2 .0 * 28.9 21.5 134
SHELL CREEK 9580 .0 .0 100* 24.7 23.8 104
SYLVAN LAKE 8420 .0 .0 100* 45.2 30.4 149
SYLVAN ROAD 8120 .3 .0 * 35.3 25.8 137
TIMBER CREEK 7950 .2 .0 * 17.8 16.5 108
YOUNTS PEAK 8350 .6 .0 * 36.1 25.5 142
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Basin wide percent of average 12* 126
SHOSHONE RIVER
BLACKWATER 9780 .1 .6 17* 40.5 28.9 140
EVENING STAR 9200 .1 1.6 6* 53.1 35.4 150
KIRWIN 9550 .2 .0 * 26.8 19.6 137
MARQUETTE 8760 .0 .0 100* 23.6 20.7 114
SYLVAN LAKE 8420 .0 .0 100* 45.2 30.4 149
SYLVAN ROAD 8120 .3 .0 * 35.3 25.8 137
YOUNTS PEAK 8350 .6 .0 * 36.1 25.5 142
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Basin wide percent of average 9* 140
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .1 .0 * 19.4 16.9 115
BONE SPRINGS DIV 9350 .1 .0 * 28.6 26.0 110
BURGESS JUNCTION 7880 .1 .0 * 24.1 20.8 116
CLOUD PEAK RESERVOIR 9860 .2 .0 * 28.8 25.2 114
DOME LAKE 8880 .1 .0 * 25.9 23.3 111
GRAVE SPRINGS 8550 .0 -M * 19.1 19.7 97
HANSEN SAWMILL 8760 .0 .0 100* 21.1 16.5 128
LOST CREEK 8080 -M .0 * -M 22.0 *
MIDDLE POWDER 7760 .0 .0 100* 26.1 21.6 121
POWDER RIVER PASS 9480 .2 .0 * 28.9 21.5 134
SUCKER CREEK 8880 .1 .0 * 29.0 24.2 120
TIE CREEK 6870 .1 -M * 27.3 20.0 137
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Basin wide percent of average * 118
BELLE FOURCHE
BLIND PARK 6890 .3 .0 * 25.4 23.0 110
NORTH RAPID CREEK 6130 .0 -M * 24.6 -M *
WARREN PEAK 6520 .1 .0 * 31.5 17.4 181
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Basin wide percent of average * 141
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 43.0 32.9 131
DIVIDE PEAK 8800 .0 .0 100* 32.9 32.6 101
ELK RIVER 8700 .1 .0 * 34.6 26.7 130
JOE WRIGHT 10120 .0 .3 0* 43.9 38.4 114
NORTH FRENCH CREEK 10100 .0 .0 100* 40.9 35.0 117
OLD BATTLE 10000 .0 .6 0* 50.6 42.5 119
SOUTH BRUSH CREEK 8400 .0 .0 100* 25.4 26.4 96
TOWER 10500 1.2 2.2 55* 66.1 52.3 126
WEBBER SPRINGS 9200 .0 .0 100* 44.7 36.3 123
WILLOW CREEK PASS 9540 .0 .0 100* 24.2 21.0 115
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Basin wide percent of average 39* 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .0 100* 38.5 29.5 131
CASPER MTN. 7900 .0 .0 100* 30.6 26.1 117
CHRISTINA LAKE 9980 .0 .0 100* 31.4 26.4 119
DEADMAN HILL 10220 .3 .0 * 28.7 27.6 104
LAPRELE CREEK 8320 .0 .0 100* 22.3 21.1 106
RENO HILL 8400 .0 .0 100* 30.9 27.4 113
ROACH 9700 .0 .0 100* 31.3 33.0 95
SAND LAKE 10080 .0 .6 0* 41.6 31.3 133
SOUTH PASS 9040 .2 .0 * 31.7 26.9 118
WINDY PEAK 7840 .1 .0 * 18.6 18.7 99
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Basin wide percent of average 0* 114
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * 17.4 22.2 78
DIVIDE PEAK 8800 .0 .0 100* 32.9 32.6 101
OLD BATTLE 10000 .0 .6 0* 50.6 42.5 119
SANDSTONE RS 8150 .0 .0 100* 28.8 27.7 104
WHISKEY PARK 8950 .0 .0 100* 46.0 40.2 114
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Basin wide percent of average 0* 106
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.6 22.6 100
BLIND BULL SUM 8650 .0 .0 100* 42.8 31.4 136
EAST RIM DIVIDE 7930 .0 .0 100* 23.4 21.1 111
ELKHART PARK G.S. 9400 .0 .0 100* 26.7 22.3 120
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.9 22.2 126
KENDALL R.S. 7740 .2 .0 * 30.8 21.6 143
LOOMIS PARK 8240 .0 .0 100* 35.9 26.2 137
NEW FORK LAKE 8340 .0 .0 100* 19.8 20.1 99
SNIDER BASIN 8250 .0 .0 100* 23.8 21.1 113
SPRING CREEK DIVIDE 9000 .0 .0 100* 42.0 36.1 116
TRIPLE PEAK 8500 .0 .0 100* 49.5 41.8 118
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Basin wide percent of average * 120
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 21.8 18.6 117
HEWINTA 9500 .0 .0 100* -M 21.6 *
HICKERSON PARK 9150 .0 .0 100* -M 17.8 *
HOLE-IN-ROCK 9150 .0 .0 100* -M 17.8 *
INDIAN CREEK 9425 .0 .0 100* 40.2 34.7 116
KELLEY R.S. 8180 .0 .0 100* 37.3 26.1 143
STEEL CREEK PARK 10100 .0 .0 100* -M 24.3 *
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Basin wide percent of average * 125*
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 38.5 26.6 145
HAYDEN FORK 9400 .0 .0 100* -M 29.0 *
KELLEY R.S. 8180 .0 .0 100* 37.3 26.1 143
LILY LAKE 9050 .0 .0 100* 27.4 23.6 116
MONTE CRISTO 8960 -M .0 * 44.0 36.1 122
SALT RIVER SUMMIT 7600 .0 .0 100* 32.4 23.5 138
TRIAL LAKE 9960 .0 .0 100* 43.1 34.3 126
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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.