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 WEDNESDAY: JUNE 18 , 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 * 44.0 28.9 152
COTTONWOOD CREEK 7600 .0 .0 100* 45.1 32.1 140
GRANITE CREEK 6770 .1 .0 * 39.5 31.1 127
GRASSY LAKE 7265 .3 .0 * 68.4 47.8 143
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.5 21.0 131
LEWIS LAKE DIVIDE 7860 .5 .0 * 69.1 48.6 142
PHILLIPS BENCH 8200 1.3 .0 * 56.9 38.3 149
SALT RIVER SUMMIT 7600 .0 .0 100* 31.4 22.3 141
SNAKE RIVER STATION 6920 .1 .0 * 45.5 33.6 135
SPRING CREEK DIVIDE 9000 .0 .0 100* 41.0 34.8 118
THUMB DIVIDE 7980 .1 .0 * 41.8 27.0 155
TOGWOTEE PASS 9580 10.6 10.9 97 43.9 36.5 120
TWO OCEAN PLATEAU 9360 -M 12.8 * 54.9 39.8 138
WILLOW CREEK 8450 .3 .0 * 60.8 41.3 147
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Basin wide percent of average 97* 139
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 13.7 8.0 171 38.9 26.4 147
BLACK BEAR 7950 -M 11.5 * 81.7 52.8 155
CANYON 7940 .1 .2 50* 32.6 20.4 160
FISHER CREEK 9100 30.6 18.5 165 62.5 49.2 127
MADISON PLATEAU 7750 .1 .3 33* 49.5 35.0 141
NORTHEAST ENTRANCE 7350 .1 .0 * 27.5 17.9 154
PARKER PEAK 9400 4.2 9.8 43 32.3 23.3 139
SYLVAN LAKE 8420 .0 4.9 0 43.1 28.1 153
THUMB DIVIDE 7980 .1 .0 * 41.8 27.0 155
TWO OCEAN PLATEAU 9360 -M 12.8 * 54.9 39.8 138
WHISKEY CREEK 6800 .4 .0 * 39.1 29.3 133
WHITE MILL 8700 14.2 9.2 154 42.3 38.4 110
WOLVERINE 7650 .3 .0 * 22.6 19.5 116
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Basin wide percent of average 124* 140
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 32.7 23.5 139
CHRISTINA LAKE 9980 .3 2.9 10 31.0 24.7 126
COLD SPRINGS 9630 .3 .0 * 21.5 17.2 125
HOBBS PARK 10100 .0 2.9 0 23.5 22.1 106
LITTLE WARM 9620 .3 .0 * 28.8 20.4 141
SOUTH PASS 9040 .2 3.2 6 32.2 25.3 127
ST. LAWRENCE ALT 8620 .0 .0 100* 19.9 15.9 125
TOGWOTEE PASS 9580 10.6 10.9 97 43.9 36.5 120
TOWNSEND CREEK 8700 .0 .0 100* 21.7 19.8 110
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Basin wide percent of average 56* 124
BIGHORN BASIN
BALD MTN. 9375 .9 7.8 12 28.9 26.7 108
BEAR TRAP MEADOW 7900 .2 .0 * 17.1 15.3 112
BLACKWATER 9780 17.4 6.8 256 38.9 26.2 148
BONE SPRINGS DIV 9350 .3 2.0 15 26.3 23.9 110
EVENING STAR 9200 13.3 13.3 100 51.2 32.3 159
GRAVE SPRINGS 8550 .1 -M * 18.2 17.9 102
KIRWIN 9550 -M .7 * -M 17.5 *
LOST CREEK 8080 .0 1.0 0* 25.3 20.3 125
MARQUETTE 8760 .0 .7 0* 22.4 18.8 119
MIDDLE POWDER 7760 .1 .0 * 24.5 19.8 124
OWL CREEK 8975 .2 .0 * 14.8 11.8 125
POWDER RIVER PASS 9480 2.0 .0 * 25.8 19.8 130
SHELL CREEK 9580 .0 3.2 0 23.3 21.7 107
SYLVAN LAKE 8420 .0 4.9 0 43.1 28.1 153
SYLVAN ROAD 8120 .2 .0 * 33.7 23.6 143
TIMBER CREEK 7950 .3 .0 * 17.3 15.0 115
YOUNTS PEAK 8350 .8 1.6 50* 34.3 23.7 145
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Basin wide percent of average 79* 129
SHOSHONE RIVER
BLACKWATER 9780 17.4 6.8 256 38.9 26.2 148
EVENING STAR 9200 13.3 13.3 100 51.2 32.3 159
KIRWIN 9550 -M .7 * -M 17.5 *
MARQUETTE 8760 .0 .7 0* 22.4 18.8 119
SYLVAN LAKE 8420 .0 4.9 0 43.1 28.1 153
SYLVAN ROAD 8120 .2 .0 * 33.7 23.6 143
YOUNTS PEAK 8350 .8 1.6 50* 34.3 23.7 145
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Basin wide percent of average 115* 146
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 17.1 15.3 112
BONE SPRINGS DIV 9350 .3 2.0 15 26.3 23.9 110
BURGESS JUNCTION 7880 .2 .0 * 22.4 19.1 117
CLOUD PEAK RESERVOIR 9860 .1 2.6 4 27.4 23.1 119
DOME LAKE 8880 .1 .7 14* 24.1 21.6 112
GRAVE SPRINGS 8550 .1 -M * 18.2 17.9 102
HANSEN SAWMILL 8760 .0 .0 100* 19.4 14.7 132
LOST CREEK 8080 .0 1.0 0* 25.3 20.3 125
MIDDLE POWDER 7760 .1 .0 * 24.5 19.8 124
POWDER RIVER PASS 9480 2.0 .0 * 25.8 19.8 130
SUCKER CREEK 8880 .0 .1 0* 27.4 22.2 123
TIE CREEK 6870 .2 -M * 25.2 18.3 138
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Basin wide percent of average 8* 120
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * 23.2 20.5 113
NORTH RAPID CREEK 6130 .0 -M * 22.7 -M *
WARREN PEAK 6520 .0 .0 100* 29.5 15.2 194
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Basin wide percent of average * 148
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 42.9 31.7 135
DIVIDE PEAK 8800 .0 .2 0* 33.7 31.5 107
ELK RIVER 8700 .1 .0 * 34.4 25.5 135
JOE WRIGHT 10120 6.3 6.1 103 44.1 36.3 121
NORTH FRENCH CREEK 10100 8.5 10.4 82 41.1 33.4 123
OLD BATTLE 10000 14.8 8.0 185 50.3 40.9 123
SOUTH BRUSH CREEK 8400 .0 .0 100* 25.7 24.7 104
TOWER 10500 48.6 24.2 201 66.5 50.6 131
WEBBER SPRINGS 9200 .0 1.6 0* 44.7 34.8 128
WILLOW CREEK PASS 9540 .1 .0 * 24.6 19.5 126
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Basin wide percent of average 155* 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .4 3.2 12 37.9 28.1 135
CASPER MTN. 7900 .0 .7 0* 30.4 24.4 125
CHRISTINA LAKE 9980 .3 2.9 10 31.0 24.7 126
DEADMAN HILL 10220 .3 3.1 10 28.9 25.8 112
LAPRELE CREEK 8320 .2 .0 * 22.2 19.5 114
RENO HILL 8400 2.9 .6 483* 30.6 25.7 119
ROACH 9700 .0 .9 0* 31.4 31.3 100
SAND LAKE 10080 12.8 11.4 112 41.4 29.8 139
SOUTH PASS 9040 .2 3.2 6 32.2 25.3 127
WINDY PEAK 7840 .2 .0 * 19.3 17.0 114
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Basin wide percent of average 65 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * 16.8 21.4 79
DIVIDE PEAK 8800 .0 .2 0* 33.7 31.5 107
OLD BATTLE 10000 14.8 8.0 185 50.3 40.9 123
SANDSTONE RS 8150 .0 .0 100* 28.9 26.6 109
WHISKEY PARK 8950 .0 .2 0* 44.9 39.0 115
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Basin wide percent of average 176* 110
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.7 21.5 106
BLIND BULL SUM 8650 10.8 7.2 150 41.6 30.4 137
EAST RIM DIVIDE 7930 .0 .0 100* 23.0 20.1 114
ELKHART PARK G.S. 9400 .1 .0 * 25.2 21.1 119
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.5 21.0 131
KENDALL R.S. 7740 .0 .0 100* 30.3 20.6 147
LOOMIS PARK 8240 .0 .0 100* 35.0 24.9 141
NEW FORK LAKE 8340 .1 .0 * 19.8 19.1 104
SNIDER BASIN 8250 .2 .0 * 23.4 20.1 116
SPRING CREEK DIVIDE 9000 .0 .0 100* 41.0 34.8 118
TRIPLE PEAK 8500 .1 .0 * 48.7 40.2 121
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Basin wide percent of average 150* 124
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* 21.5 17.6 122
HEWINTA 9500 .0 .0 100* 20.6 20.1 102
HICKERSON PARK 9150 .0 .0 100* 15.2 16.3 93
HOLE-IN-ROCK 9150 .1 .0 * 15.9 16.3 98
INDIAN CREEK 9425 3.9 .0 * 40.2 33.4 120
KELLEY R.S. 8180 .0 .0 100* 37.9 24.8 153
STEEL CREEK PARK 10100 .8 2.9 28 24.0 21.8 110
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Basin wide percent of average 28* 117
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 38.1 25.8 148
HAYDEN FORK 9400 .0 .0 100* 34.1 27.4 124
KELLEY R.S. 8180 .0 .0 100* 37.9 24.8 153
LILY LAKE 9050 .0 .0 100* 27.4 22.2 123
MONTE CRISTO 8960 1.1 3.1 35 43.8 34.8 126
SALT RIVER SUMMIT 7600 .0 .0 100* 31.4 22.3 141
TRIAL LAKE 9960 -M 3.2 * 43.1 32.8 131
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Basin wide percent of average 35* 135
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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.