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 1 , 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 * 44.3 29.6 150
COTTONWOOD CREEK 7600 .0 .0 100* 45.8 32.9 139
GRANITE CREEK 6770 .0 .0 100* 39.6 32.1 123
GRASSY LAKE 7265 .0 .0 100* 68.3 49.0 139
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.8 21.7 128
LEWIS LAKE DIVIDE 7860 .2 .0 * 69.0 49.8 139
PHILLIPS BENCH 8200 .0 .0 100* 57.3 39.2 146
SALT RIVER SUMMIT 7600 .0 .0 100* 31.8 23.0 138
SNAKE RIVER STATION 6920 -M .0 * -M 34.4 *
SPRING CREEK DIVIDE 9000 -M .0 * 41.5 35.6 117
THUMB DIVIDE 7980 .0 .0 100* 42.5 27.7 153
TOGWOTEE PASS 9580 .2 .0 * 44.4 37.4 119
TWO OCEAN PLATEAU 9360 -M .0 * 55.7 40.8 137
WILLOW CREEK 8450 .0 .0 100* 61.9 42.3 146
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Basin wide percent of average * 137
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .5 1.7 29* 39.9 27.5 145
BLACK BEAR 7950 -M 1.2 * 81.6 54.4 150
CANYON 7940 .2 .0 * 32.6 21.5 152
FISHER CREEK 9100 -M 5.9 * 63.5 50.9 125
MADISON PLATEAU 7750 .0 .0 100* 49.6 36.3 137
NORTHEAST ENTRANCE 7350 .1 .0 * 28.0 19.0 147
PARKER PEAK 9400 .1 3.5 3 32.9 24.7 133
SYLVAN LAKE 8420 .0 .0 100* 44.0 29.5 149
THUMB DIVIDE 7980 .0 .0 100* 42.5 27.7 153
TWO OCEAN PLATEAU 9360 -M .0 * 55.7 40.8 137
WHISKEY CREEK 6800 .2 .0 * 39.7 30.6 130
WHITE MILL 8700 1.0 2.0 50* 42.9 39.8 108
WOLVERINE 7650 .3 .0 * 23.3 20.5 114
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Basin wide percent of average 22* 136
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 33.4 24.2 138
CHRISTINA LAKE 9980 .0 .0 100* 31.3 25.7 122
COLD SPRINGS 9630 .2 .0 * 21.9 18.1 121
HOBBS PARK 10100 .0 .1 0* 23.8 23.1 103
LITTLE WARM 9620 .3 .0 * 29.5 21.2 139
SOUTH PASS 9040 .2 .0 * 32.0 26.3 122
ST. LAWRENCE ALT 8620 .0 .0 100* 20.1 16.7 120
TOGWOTEE PASS 9580 .2 .0 * 44.4 37.4 119
TOWNSEND CREEK 8700 .0 .0 100* 22.0 20.8 106
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Basin wide percent of average 0* 121
BIGHORN BASIN
BALD MTN. 9375 .0 .8 0* 29.8 27.7 108
BEAR TRAP MEADOW 7900 .1 .0 * 17.5 16.4 107
BLACKWATER 9780 .5 2.2 23* 39.9 27.9 143
BONE SPRINGS DIV 9350 .0 .0 100* 26.9 25.2 107
EVENING STAR 9200 .2 6.0 3 51.9 34.2 152
GRAVE SPRINGS 8550 .0 -M * 18.3 19.2 95
KIRWIN 9550 .2 .0 * 26.6 18.5 144
LOST CREEK 8080 -M .0 * -M 21.4 *
MARQUETTE 8760 .0 .0 100* 22.7 19.9 114
MIDDLE POWDER 7760 .0 .0 100* 24.9 21.1 118
OWL CREEK 8975 .2 .0 * 15.0 12.6 119
POWDER RIVER PASS 9480 .0 .0 100* 26.3 21.0 125
SHELL CREEK 9580 .0 .0 100* 23.7 23.2 102
SYLVAN LAKE 8420 .0 .0 100* 44.0 29.5 149
SYLVAN ROAD 8120 .2 .0 * 34.4 24.9 138
TIMBER CREEK 7950 .2 .0 * 17.5 15.9 110
YOUNTS PEAK 8350 .7 .0 * 35.5 24.8 143
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Basin wide percent of average 8* 126
SHOSHONE RIVER
BLACKWATER 9780 .5 2.2 23* 39.9 27.9 143
EVENING STAR 9200 .2 6.0 3 51.9 34.2 152
KIRWIN 9550 .2 .0 * 26.6 18.5 144
MARQUETTE 8760 .0 .0 100* 22.7 19.9 114
SYLVAN LAKE 8420 .0 .0 100* 44.0 29.5 149
SYLVAN ROAD 8120 .2 .0 * 34.4 24.9 138
YOUNTS PEAK 8350 .7 .0 * 35.5 24.8 143
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Basin wide percent of average 9* 142
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .1 .0 * 17.5 16.4 107
BONE SPRINGS DIV 9350 .0 .0 100* 26.9 25.2 107
BURGESS JUNCTION 7880 .0 .0 100* 22.5 20.1 112
CLOUD PEAK RESERVOIR 9860 .1 .0 * 27.6 24.5 113
DOME LAKE 8880 .1 .0 * 24.4 22.7 107
GRAVE SPRINGS 8550 .0 -M * 18.3 19.2 95
HANSEN SAWMILL 8760 .0 .0 100* 19.7 16.0 123
LOST CREEK 8080 -M .0 * -M 21.4 *
MIDDLE POWDER 7760 .0 .0 100* 24.9 21.1 118
POWDER RIVER PASS 9480 .0 .0 100* 26.3 21.0 125
SUCKER CREEK 8880 .0 .0 100* 27.3 23.5 116
TIE CREEK 6870 .1 -M * 25.9 19.3 134
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Basin wide percent of average * 114
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 24.4 22.2 110
NORTH RAPID CREEK 6130 -M -M * -M -M *
WARREN PEAK 6520 .0 .0 100* 30.5 16.7 183
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Basin wide percent of average * 141
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 43.1 32.3 133
DIVIDE PEAK 8800 .0 .0 100* 33.3 32.1 104
ELK RIVER 8700 .0 .0 100* 34.6 26.2 132
JOE WRIGHT 10120 .0 1.3 0* 44.1 37.3 118
NORTH FRENCH CREEK 10100 .9 .0 * 41.2 34.3 120
OLD BATTLE 10000 .0 2.6 0* 50.5 41.9 121
SOUTH BRUSH CREEK 8400 .0 .0 100* 26.1 25.8 101
TOWER 10500 23.1 10.2 226 66.8 51.6 129
WEBBER SPRINGS 9200 .0 .0 100* 45.0 35.7 126
WILLOW CREEK PASS 9540 .2 .0 * 24.7 20.4 121
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Basin wide percent of average 164* 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .3 .0 * 38.5 28.9 133
CASPER MTN. 7900 .0 .0 100* 30.8 25.5 121
CHRISTINA LAKE 9980 .0 .0 100* 31.3 25.7 122
DEADMAN HILL 10220 .3 .0 * 28.7 26.7 107
LAPRELE CREEK 8320 .0 .0 100* 22.3 20.5 109
RENO HILL 8400 2.6 .0 * 30.6 26.8 114
ROACH 9700 .0 .0 100* 31.5 32.2 98
SAND LAKE 10080 .0 2.7 0* 41.3 30.9 134
SOUTH PASS 9040 .2 .0 * 32.0 26.3 122
WINDY PEAK 7840 .1 .0 * 18.6 18.0 103
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Basin wide percent of average 0* 117
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .5 .0 * 17.4 21.8 80
DIVIDE PEAK 8800 .0 .0 100* 33.3 32.1 104
OLD BATTLE 10000 .0 2.6 0* 50.5 41.9 121
SANDSTONE RS 8150 .0 .0 100* 29.0 27.1 107
WHISKEY PARK 8950 .0 .0 100* 46.0 39.5 116
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Basin wide percent of average 0* 108
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.7 22.1 103
BLIND BULL SUM 8650 .0 .0 100* 42.2 31.0 136
EAST RIM DIVIDE 7930 .0 .0 100* 23.4 20.7 113
ELKHART PARK G.S. 9400 .0 .0 100* 26.5 21.8 122
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.8 21.7 128
KENDALL R.S. 7740 .0 .0 100* 30.7 21.2 145
LOOMIS PARK 8240 .0 .0 100* 35.7 25.7 139
NEW FORK LAKE 8340 .0 .0 100* 20.1 19.7 102
SNIDER BASIN 8250 .0 .0 100* 23.6 20.7 114
SPRING CREEK DIVIDE 9000 -M .0 * 41.5 35.6 117
TRIPLE PEAK 8500 .0 .0 100* 49.0 41.2 119
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Basin wide percent of average * 122
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 21.6 18.2 119
HEWINTA 9500 .0 .0 100* 20.8 21.0 99
HICKERSON PARK 9150 .0 .0 100* 15.5 17.2 90
HOLE-IN-ROCK 9150 .0 .0 100* 16.4 17.2 95
INDIAN CREEK 9425 .0 .0 100* 40.0 34.2 117
KELLEY R.S. 8180 .0 .0 100* 37.3 25.6 146
STEEL CREEK PARK 10100 .1 .0 * 24.0 23.3 103
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Basin wide percent of average * 112
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 38.2 26.4 145
HAYDEN FORK 9400 .0 .0 100* 34.2 28.3 121
KELLEY R.S. 8180 .0 .0 100* 37.3 25.6 146
LILY LAKE 9050 .0 .0 100* 27.4 23.1 119
MONTE CRISTO 8960 .2 .0 * 43.7 35.7 122
SALT RIVER SUMMIT 7600 .0 .0 100* 31.8 23.0 138
TRIAL LAKE 9960 .0 .0 100* 43.2 33.7 128
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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.