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: JUNE 21 , 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 .0 .0 100* 44.3 29.0 153
COTTONWOOD CREEK 7600 .0 .0 100* 45.9 32.3 142
GRANITE CREEK 6770 .0 .0 100* 39.4 31.3 126
GRASSY LAKE 7265 .1 .0 * 68.3 48.1 142
GROS VENTRE SUMMIT 8775 .0 .0 100* 28.0 21.2 132
LEWIS LAKE DIVIDE 7860 .1 .0 * 69.1 48.9 141
PHILLIPS BENCH 8200 .1 .0 * 57.3 38.5 149
SALT RIVER SUMMIT 7600 .0 .0 100* 31.7 22.5 141
SNAKE RIVER STATION 6920 .0 .0 100* 46.2 33.8 137
SPRING CREEK DIVIDE 9000 -M .0 * 41.5 35.0 119
THUMB DIVIDE 7980 .0 .0 100* 42.3 27.2 156
TOGWOTEE PASS 9580 6.8 8.4 81 44.3 36.7 121
TWO OCEAN PLATEAU 9360 -M 9.8 * 55.1 40.0 138
WILLOW CREEK 8450 .1 .0 * 61.3 41.5 148
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Basin wide percent of average 81* 139
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.7 6.6 177 39.1 26.7 146
BLACK BEAR 7950 -M 9.1 * 81.6 53.1 154
CANYON 7940 .1 .1 100* 32.7 20.6 159
FISHER CREEK 9100 28.9 15.6 185 63.2 49.6 127
MADISON PLATEAU 7750 .0 .3 0* 49.6 35.3 141
NORTHEAST ENTRANCE 7350 .1 .0 * 27.9 18.2 153
PARKER PEAK 9400 .4 8.3 5 32.6 23.6 138
SYLVAN LAKE 8420 .0 3.8 0 43.8 28.4 154
THUMB DIVIDE 7980 .0 .0 100* 42.3 27.2 156
TWO OCEAN PLATEAU 9360 -M 9.8 * 55.1 40.0 138
WHISKEY CREEK 6800 .3 .0 * 39.3 29.6 133
WHITE MILL 8700 11.0 7.6 145 42.7 38.7 110
WOLVERINE 7650 .2 .0 * 23.4 19.7 119
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Basin wide percent of average 123* 140
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 33.2 23.6 141
CHRISTINA LAKE 9980 .2 2.3 9 31.3 25.0 125
COLD SPRINGS 9630 .2 .0 * 22.0 17.4 126
HOBBS PARK 10100 .0 2.2 0 24.7 22.4 110
LITTLE WARM 9620 .3 .0 * 29.5 20.6 143
SOUTH PASS 9040 .2 2.4 8 32.2 25.5 126
ST. LAWRENCE ALT 8620 .0 .0 100* 20.1 16.1 125
TOGWOTEE PASS 9580 6.8 8.4 81 44.3 36.7 121
TOWNSEND CREEK 8700 .0 .0 100* 22.0 20.1 109
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Basin wide percent of average 47* 125
BIGHORN BASIN
BALD MTN. 9375 .4 6.2 6 29.1 26.9 108
BEAR TRAP MEADOW 7900 .2 .0 * 17.3 15.6 111
BLACKWATER 9780 13.3 5.8 229 39.6 26.6 149
BONE SPRINGS DIV 9350 .2 1.6 12* 26.6 24.2 110
EVENING STAR 9200 9.9 11.6 85 51.9 32.8 158
GRAVE SPRINGS 8550 .1 -M * 18.2 18.2 100
KIRWIN 9550 .1 .6 17* 26.3 17.7 149
LOST CREEK 8080 .0 .8 0* 25.3 20.5 123
MARQUETTE 8760 .0 .5 0* 22.5 19.0 118
MIDDLE POWDER 7760 .1 .0 * 24.5 20.1 122
OWL CREEK 8975 .2 .0 * 14.7 12.0 123
POWDER RIVER PASS 9480 2.0 .0 * 26.2 20.1 130
SHELL CREEK 9580 .0 2.5 0 23.4 22.1 106
SYLVAN LAKE 8420 .0 3.8 0 43.8 28.4 154
SYLVAN ROAD 8120 .2 .0 * 34.5 23.9 144
TIMBER CREEK 7950 .2 .0 * 17.4 15.2 114
YOUNTS PEAK 8350 .7 1.2 58* 35.2 24.0 147
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Basin wide percent of average 71* 130
SHOSHONE RIVER
BLACKWATER 9780 13.3 5.8 229 39.6 26.6 149
EVENING STAR 9200 9.9 11.6 85 51.9 32.8 158
KIRWIN 9550 .1 .6 17* 26.3 17.7 149
MARQUETTE 8760 .0 .5 0* 22.5 19.0 118
SYLVAN LAKE 8420 .0 3.8 0 43.8 28.4 154
SYLVAN ROAD 8120 .2 .0 * 34.5 23.9 144
YOUNTS PEAK 8350 .7 1.2 58* 35.2 24.0 147
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Basin wide percent of average 102* 147
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 17.3 15.6 111
BONE SPRINGS DIV 9350 .2 1.6 12* 26.6 24.2 110
BURGESS JUNCTION 7880 .1 .0 * 22.2 19.3 115
CLOUD PEAK RESERVOIR 9860 .1 2.0 5 27.5 23.4 118
DOME LAKE 8880 .0 .5 0* 24.1 21.9 110
GRAVE SPRINGS 8550 .1 -M * 18.2 18.2 100
HANSEN SAWMILL 8760 .0 .0 100* 19.4 15.0 129
LOST CREEK 8080 .0 .8 0* 25.3 20.5 123
MIDDLE POWDER 7760 .1 .0 * 24.5 20.1 122
POWDER RIVER PASS 9480 2.0 .0 * 26.2 20.1 130
SUCKER CREEK 8880 .0 .1 0* 27.0 22.5 120
TIE CREEK 6870 .2 -M * 25.1 18.5 136
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Basin wide percent of average 6* 118
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * 23.8 20.9 114
NORTH RAPID CREEK 6130 .0 -M * 23.2 -M *
WARREN PEAK 6520 .0 .0 100* 29.6 15.6 190
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Basin wide percent of average * 146
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 43.0 31.8 135
DIVIDE PEAK 8800 .0 .2 0* 33.5 31.7 106
ELK RIVER 8700 .1 .0 * 34.9 25.6 136
JOE WRIGHT 10120 .0 5.0 0 44.1 36.5 121
NORTH FRENCH CREEK 10100 4.0 8.0 50 41.5 33.6 124
OLD BATTLE 10000 8.3 6.7 124 50.5 41.1 123
SOUTH BRUSH CREEK 8400 .0 .0 100* 26.1 25.0 104
TOWER 10500 42.8 20.9 205 66.8 50.9 131
WEBBER SPRINGS 9200 .0 1.2 0* 44.8 35.0 128
WILLOW CREEK PASS 9540 .1 .0 * 25.0 19.7 127
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Basin wide percent of average 131* 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .3 2.5 12* 38.3 28.3 135
CASPER MTN. 7900 .0 .6 0* 30.5 24.6 124
CHRISTINA LAKE 9980 .2 2.3 9 31.3 25.0 125
DEADMAN HILL 10220 .2 2.4 8 28.9 26.0 111
LAPRELE CREEK 8320 .2 .0 * 22.2 19.7 113
RENO HILL 8400 2.8 .4 700* 30.7 26.0 118
ROACH 9700 .0 .7 0* 31.4 31.5 100
SAND LAKE 10080 7.4 9.4 79 41.6 30.1 138
SOUTH PASS 9040 .2 2.4 8 32.2 25.5 126
WINDY PEAK 7840 .2 .0 * 18.9 17.2 110
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Basin wide percent of average 54* 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * 17.4 21.5 81
DIVIDE PEAK 8800 .0 .2 0* 33.5 31.7 106
OLD BATTLE 10000 8.3 6.7 124 50.5 41.1 123
SANDSTONE RS 8150 .0 .0 100* 29.0 26.7 109
WHISKEY PARK 8950 .0 .1 0* 45.3 39.1 116
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Basin wide percent of average 119* 110
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.8 21.6 106
BLIND BULL SUM 8650 6.9 5.6 123 42.1 30.5 138
EAST RIM DIVIDE 7930 .0 .0 100* 23.4 20.2 116
ELKHART PARK G.S. 9400 .0 .0 100* 26.4 21.3 124
GROS VENTRE SUMMIT 8775 .0 .0 100* 28.0 21.2 132
KENDALL R.S. 7740 .0 .0 100* 30.6 20.7 148
LOOMIS PARK 8240 .0 .0 100* 35.5 25.1 141
NEW FORK LAKE 8340 .0 .0 100* 19.8 19.2 103
SNIDER BASIN 8250 .0 .0 100* 23.6 20.2 117
SPRING CREEK DIVIDE 9000 -M .0 * 41.5 35.0 119
TRIPLE PEAK 8500 .0 .0 100* 49.2 40.4 122
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Basin wide percent of average 123* 125
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 21.5 17.8 121
HEWINTA 9500 .0 .0 100* 20.8 20.3 102
HICKERSON PARK 9150 .0 .0 100* 15.5 16.5 94
HOLE-IN-ROCK 9150 .1 .0 * 16.3 16.5 99
INDIAN CREEK 9425 .4 .0 * 40.2 33.6 120
KELLEY R.S. 8180 .0 .0 100* 37.7 25.0 151
STEEL CREEK PARK 10100 .6 2.3 26 24.2 22.1 110
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Basin wide percent of average 26* 116
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 38.1 25.9 147
HAYDEN FORK 9400 .0 .0 100* 34.3 27.6 124
KELLEY R.S. 8180 .0 .0 100* 37.7 25.0 151
LILY LAKE 9050 .0 .0 100* 27.5 22.4 123
MONTE CRISTO 8960 1.1 2.4 46* 43.8 35.0 125
SALT RIVER SUMMIT 7600 .0 .0 100* 31.7 22.5 141
TRIAL LAKE 9960 -M 2.5 * 43.3 33.0 131
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Basin wide percent of average 46* 134
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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.