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 FRIDAY: JUNE 20 , 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* 44.4 29.0 153
COTTONWOOD CREEK 7600 .0 .0 100* 46.0 32.2 143
GRANITE CREEK 6770 .0 .0 100* 39.6 31.3 127
GRASSY LAKE 7265 .1 .0 * 68.5 48.0 143
GROS VENTRE SUMMIT 8775 .0 .0 100* 28.0 21.1 133
LEWIS LAKE DIVIDE 7860 .4 .0 * 69.3 48.8 142
PHILLIPS BENCH 8200 .3 .0 * 57.4 38.4 149
SALT RIVER SUMMIT 7600 .0 .0 100* 31.7 22.4 142
SNAKE RIVER STATION 6920 .0 .0 100* 46.2 33.7 137
SPRING CREEK DIVIDE 9000 -M .0 * 41.6 34.9 119
THUMB DIVIDE 7980 .0 .0 100* 42.3 27.1 156
TOGWOTEE PASS 9580 7.9 9.2 86 44.3 36.6 121
TWO OCEAN PLATEAU 9360 29.1 10.8 269 55.0 39.9 138
WILLOW CREEK 8450 .2 .0 * 61.3 41.5 148
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Basin wide percent of average 185* 139
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 12.2 7.1 172 39.1 26.6 147
BLACK BEAR 7950 -M 9.9 * 81.7 53.0 154
CANYON 7940 .2 .1 200* 32.7 20.5 160
FISHER CREEK 9100 29.6 16.6 178 63.2 49.5 128
MADISON PLATEAU 7750 .0 .3 0* 49.6 35.2 141
NORTHEAST ENTRANCE 7350 .1 .0 * 27.9 18.1 154
PARKER PEAK 9400 1.2 8.8 14 32.8 23.5 140
SYLVAN LAKE 8420 .0 4.1 0 43.8 28.3 155
THUMB DIVIDE 7980 .0 .0 100* 42.3 27.1 156
TWO OCEAN PLATEAU 9360 29.1 10.8 269 55.0 39.9 138
WHISKEY CREEK 6800 .3 .0 * 38.8 29.5 132
WHITE MILL 8700 12.0 8.1 148 42.7 38.6 111
WOLVERINE 7650 .3 .0 * 23.3 19.6 119
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Basin wide percent of average 151* 140
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 33.4 23.6 142
CHRISTINA LAKE 9980 .3 2.5 12 31.3 24.9 126
COLD SPRINGS 9630 .2 .0 * 22.0 17.4 126
HOBBS PARK 10100 .0 2.4 0 25.0 22.3 112
LITTLE WARM 9620 .3 .0 * 29.6 20.5 144
SOUTH PASS 9040 .2 2.7 7 32.2 25.5 126
ST. LAWRENCE ALT 8620 .0 .0 100* 20.1 16.0 126
TOGWOTEE PASS 9580 7.9 9.2 86 44.3 36.6 121
TOWNSEND CREEK 8700 .0 .0 100* 21.9 20.0 110
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Basin wide percent of average 50* 126
BIGHORN BASIN
BALD MTN. 9375 .6 6.7 9 28.9 26.8 108
BEAR TRAP MEADOW 7900 .2 .0 * 17.3 15.5 112
BLACKWATER 9780 14.8 6.1 243 39.6 26.5 149
BONE SPRINGS DIV 9350 .3 1.7 18* 26.5 24.1 110
EVENING STAR 9200 10.7 12.2 88 51.9 32.6 159
GRAVE SPRINGS 8550 .1 -M * 18.2 18.1 101
KIRWIN 9550 .2 .6 33* 26.5 17.7 150
LOST CREEK 8080 .0 .8 0* 25.3 20.4 124
MARQUETTE 8760 .0 .6 0* 22.6 18.9 120
MIDDLE POWDER 7760 .1 .0 * 24.5 20.0 123
OWL CREEK 8975 .2 .0 * 14.8 11.9 124
POWDER RIVER PASS 9480 2.0 .0 * 25.8 20.0 129
SHELL CREEK 9580 .0 2.8 0 23.4 22.0 106
SYLVAN LAKE 8420 .0 4.1 0 43.8 28.3 155
SYLVAN ROAD 8120 .3 .0 * 34.5 23.8 145
TIMBER CREEK 7950 -M .0 * 17.3 15.1 115
YOUNTS PEAK 8350 .8 1.4 57* 35.1 23.9 147
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Basin wide percent of average 74* 130
SHOSHONE RIVER
BLACKWATER 9780 14.8 6.1 243 39.6 26.5 149
EVENING STAR 9200 10.7 12.2 88 51.9 32.6 159
KIRWIN 9550 .2 .6 33* 26.5 17.7 150
MARQUETTE 8760 .0 .6 0* 22.6 18.9 120
SYLVAN LAKE 8420 .0 4.1 0 43.8 28.3 155
SYLVAN ROAD 8120 .3 .0 * 34.5 23.8 145
YOUNTS PEAK 8350 .8 1.4 57* 35.1 23.9 147
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Basin wide percent of average 106* 148
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 17.3 15.5 112
BONE SPRINGS DIV 9350 .3 1.7 18* 26.5 24.1 110
BURGESS JUNCTION 7880 .2 .0 * 22.3 19.2 116
CLOUD PEAK RESERVOIR 9860 .1 2.2 5 27.5 23.3 118
DOME LAKE 8880 .0 .6 0* 24.1 21.8 111
GRAVE SPRINGS 8550 .1 -M * 18.2 18.1 101
HANSEN SAWMILL 8760 .0 .0 100* 19.4 14.9 130
LOST CREEK 8080 .0 .8 0* 25.3 20.4 124
MIDDLE POWDER 7760 .1 .0 * 24.5 20.0 123
POWDER RIVER PASS 9480 2.0 .0 * 25.8 20.0 129
SUCKER CREEK 8880 .0 .1 0* 27.2 22.4 121
TIE CREEK 6870 .2 -M * 25.2 18.5 136
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Basin wide percent of average 7* 119
BELLE FOURCHE
BLIND PARK 6890 .2 .0 * 23.7 20.7 114
NORTH RAPID CREEK 6130 .0 -M * 23.1 -M *
WARREN PEAK 6520 .0 .0 100* 29.5 15.5 190
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Basin wide percent of average * 147
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 43.1 31.8 136
DIVIDE PEAK 8800 .0 .2 0* 33.6 31.6 106
ELK RIVER 8700 .1 .0 * 34.8 25.6 136
JOE WRIGHT 10120 1.7 5.4 31 44.1 36.4 121
NORTH FRENCH CREEK 10100 5.6 8.8 64 41.5 33.6 124
OLD BATTLE 10000 10.5 7.1 148 50.5 41.1 123
SOUTH BRUSH CREEK 8400 .0 .0 100* 26.1 24.9 105
TOWER 10500 44.8 22.0 204 66.8 50.8 131
WEBBER SPRINGS 9200 .0 1.4 0* 44.8 35.0 128
WILLOW CREEK PASS 9540 .1 .0 * 25.1 19.6 128
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Basin wide percent of average 139* 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .4 2.8 14* 38.2 28.2 135
CASPER MTN. 7900 .0 .6 0* 30.4 24.5 124
CHRISTINA LAKE 9980 .3 2.5 12 31.3 24.9 126
DEADMAN HILL 10220 .3 2.6 12 28.9 25.9 112
LAPRELE CREEK 8320 .0 .0 100* 22.3 19.6 114
RENO HILL 8400 2.9 .5 580* 30.7 25.9 119
ROACH 9700 .0 .8 0* 31.4 31.5 100
SAND LAKE 10080 9.0 10.1 89 41.5 30.0 138
SOUTH PASS 9040 .2 2.7 7 32.2 25.5 126
WINDY PEAK 7840 .2 .0 * 19.2 17.2 112
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Basin wide percent of average 58* 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * 17.3 21.5 80
DIVIDE PEAK 8800 .0 .2 0* 33.6 31.6 106
OLD BATTLE 10000 10.5 7.1 148 50.5 41.1 123
SANDSTONE RS 8150 .0 .0 100* 29.0 26.7 109
WHISKEY PARK 8950 .0 .1 0* 45.2 39.1 116
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Basin wide percent of average 142* 110
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.8 21.6 106
BLIND BULL SUM 8650 7.9 6.1 130 42.1 30.5 138
EAST RIM DIVIDE 7930 .0 .0 100* 23.5 20.2 116
ELKHART PARK G.S. 9400 .0 .0 100* 26.4 21.2 125
GROS VENTRE SUMMIT 8775 .0 .0 100* 28.0 21.1 133
KENDALL R.S. 7740 .0 .0 100* 30.7 20.7 148
LOOMIS PARK 8240 .0 .0 100* 35.6 25.0 142
NEW FORK LAKE 8340 .0 .0 100* 20.0 19.2 104
SNIDER BASIN 8250 .2 .0 * 23.6 20.2 117
SPRING CREEK DIVIDE 9000 -M .0 * 41.6 34.9 119
TRIPLE PEAK 8500 .0 .0 100* 49.3 40.3 122
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Basin wide percent of average 130* 125
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 21.6 17.7 122
HEWINTA 9500 .0 .0 100* 20.7 20.3 102
HICKERSON PARK 9150 .0 .0 100* 15.6 16.5 95
HOLE-IN-ROCK 9150 .2 .0 * 16.2 16.5 98
INDIAN CREEK 9425 1.0 .0 * 40.2 33.5 120
KELLEY R.S. 8180 .0 .0 100* 37.9 24.9 152
STEEL CREEK PARK 10100 .8 2.5 32 24.2 22.0 110
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Basin wide percent of average 32* 117
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 38.1 25.9 147
HAYDEN FORK 9400 .0 .0 100* 34.3 27.5 125
KELLEY R.S. 8180 .0 .0 100* 37.9 24.9 152
LILY LAKE 9050 .0 .0 100* 27.5 22.4 123
MONTE CRISTO 8960 1.1 2.6 42* 43.8 35.0 125
SALT RIVER SUMMIT 7600 .0 .0 100* 31.7 22.4 142
TRIAL LAKE 9960 -M 2.8 * 43.2 33.0 131
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Basin wide percent of average 42* 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.