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 SUNDAY: JUNE 15 , 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* 43.8 28.7 153
COTTONWOOD CREEK 7600 .0 .0 100* 44.6 31.9 140
GRANITE CREEK 6770 .0 .0 100* 38.9 30.9 126
GRASSY LAKE 7265 .2 .0 * 67.3 47.6 141
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.2 20.8 131
LEWIS LAKE DIVIDE 7860 4.0 .0 * 68.6 48.4 142
PHILLIPS BENCH 8200 6.4 .0 * 56.1 38.1 147
SALT RIVER SUMMIT 7600 .0 .0 100* 31.3 22.1 142
SNAKE RIVER STATION 6920 .0 .0 100* 45.2 33.4 135
SPRING CREEK DIVIDE 9000 .9 .0 * 40.8 34.6 118
THUMB DIVIDE 7980 .0 .0 100* 41.4 26.8 154
TOGWOTEE PASS 9580 14.3 13.4 107 43.9 36.3 121
TWO OCEAN PLATEAU 9360 29.6 15.7 189 54.5 39.5 138
WILLOW CREEK 8450 .2 .0 * 60.1 41.1 146
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Basin wide percent of average 151* 138
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.4 9.5 183 38.8 26.2 148
BLACK BEAR 7950 -M 13.9 * 81.1 52.4 155
CANYON 7940 .2 .2 100* 32.2 20.1 160
FISHER CREEK 9100 36.2 21.4 169 61.8 48.8 127
MADISON PLATEAU 7750 .0 .4 0* 49.0 34.7 141
NORTHEAST ENTRANCE 7350 .1 .0 * 27.2 17.7 154
PARKER PEAK 9400 7.7 11.2 69 32.1 23.0 140
SYLVAN LAKE 8420 .0 6.0 0 42.6 27.8 153
THUMB DIVIDE 7980 .0 .0 100* 41.4 26.8 154
TWO OCEAN PLATEAU 9360 29.6 15.7 189 54.5 39.5 138
WHISKEY CREEK 6800 .2 .0 * 38.8 29.0 134
WHITE MILL 8700 17.9 10.9 164 41.6 38.1 109
WOLVERINE 7650 .3 .0 * 22.9 19.2 119
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Basin wide percent of average 145* 140
WIND RIVER
BURROUGHS CREEK 8750 .0 .0 100* 32.6 23.3 140
CHRISTINA LAKE 9980 1.1 3.6 31 30.8 24.5 126
COLD SPRINGS 9630 .2 .0 * 21.0 17.0 124
HOBBS PARK 10100 .0 3.5 0 23.1 21.9 105
LITTLE WARM 9620 .3 .0 * 28.7 20.2 142
SOUTH PASS 9040 .2 3.9 5 31.9 25.1 127
ST. LAWRENCE ALT 8620 .0 .0 100* 19.7 15.7 125
TOGWOTEE PASS 9580 14.3 13.4 107 43.9 36.3 121
TOWNSEND CREEK 8700 .0 .0 100* 21.7 19.6 111
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Basin wide percent of average 64* 124
BIGHORN BASIN
BALD MTN. 9375 1.5 9.4 16 28.3 26.4 107
BEAR TRAP MEADOW 7900 .2 .0 * 16.8 15.1 111
BLACKWATER 9780 20.6 7.9 261 38.6 25.8 150
BONE SPRINGS DIV 9350 .4 2.5 16 25.6 23.6 108
EVENING STAR 9200 16.9 15.0 113 50.9 31.9 160
GRAVE SPRINGS 8550 .1 -M * 18.0 17.6 102
KIRWIN 9550 -M .9 * -M 17.3 *
LOST CREEK 8080 .0 1.2 0* 25.0 20.0 125
MARQUETTE 8760 .0 .8 0* 21.9 18.5 118
MIDDLE POWDER 7760 .1 .0 * 23.8 19.6 121
OWL CREEK 8975 .2 .0 * 14.0 11.6 121
POWDER RIVER PASS 9480 1.9 .0 * -M 19.5 *
SHELL CREEK 9580 .1 4.0 3 22.8 21.4 107
SYLVAN LAKE 8420 .0 6.0 0 42.6 27.8 153
SYLVAN ROAD 8120 .2 .0 * 33.5 23.2 144
TIMBER CREEK 7950 .3 .0 * 17.2 14.8 116
YOUNTS PEAK 8350 .8 2.0 40 34.2 23.5 146
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Basin wide percent of average 83* 129
SHOSHONE RIVER
BLACKWATER 9780 20.6 7.9 261 38.6 25.8 150
EVENING STAR 9200 16.9 15.0 113 50.9 31.9 160
KIRWIN 9550 -M .9 * -M 17.3 *
MARQUETTE 8760 .0 .8 0* 21.9 18.5 118
SYLVAN LAKE 8420 .0 6.0 0 42.6 27.8 153
SYLVAN ROAD 8120 .2 .0 * 33.5 23.2 144
YOUNTS PEAK 8350 .8 2.0 40 34.2 23.5 146
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Basin wide percent of average 121 147
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .2 .0 * 16.8 15.1 111
BONE SPRINGS DIV 9350 .4 2.5 16 25.6 23.6 108
BURGESS JUNCTION 7880 .2 .0 * 21.5 18.8 114
CLOUD PEAK RESERVOIR 9860 .2 3.2 6 27.1 22.8 119
DOME LAKE 8880 .1 .8 12* 23.6 21.4 110
GRAVE SPRINGS 8550 .1 -M * 18.0 17.6 102
HANSEN SAWMILL 8760 .0 .0 100* 18.5 14.4 128
LOST CREEK 8080 .0 1.2 0* 25.0 20.0 125
MIDDLE POWDER 7760 .1 .0 * 23.8 19.6 121
POWDER RIVER PASS 9480 1.9 .0 * -M 19.5 *
SUCKER CREEK 8880 .0 .1 0* 26.5 21.9 121
TIE CREEK 6870 .3 -M * 24.3 18.1 134
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Basin wide percent of average 9* 118
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * 23.0 20.1 114
NORTH RAPID CREEK 6130 .0 -M * 22.6 -M *
WARREN PEAK 6520 -M .0 * 28.0 14.9 188
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Basin wide percent of average * 146
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .0 100* 42.6 31.6 135
DIVIDE PEAK 8800 .0 .3 0* 32.8 31.4 104
ELK RIVER 8700 .1 .0 * 33.8 25.3 134
JOE WRIGHT 10120 9.1 7.2 126 44.0 36.0 122
NORTH FRENCH CREEK 10100 11.6 12.8 91 40.6 33.2 122
OLD BATTLE 10000 20.3 9.2 221 50.2 40.7 123
SOUTH BRUSH CREEK 8400 .1 .0 * 24.9 24.5 102
TOWER 10500 51.7 27.4 189 66.3 50.4 132
WEBBER SPRINGS 9200 .0 2.0 0* 44.4 34.6 128
WILLOW CREEK PASS 9540 .1 .0 * 24.5 19.3 127
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Basin wide percent of average 157* 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .4 4.0 10 37.7 27.9 135
CASPER MTN. 7900 .0 .9 0* 30.2 24.1 125
CHRISTINA LAKE 9980 1.1 3.6 31 30.8 24.5 126
DEADMAN HILL 10220 .2 3.8 5 28.6 25.6 112
LAPRELE CREEK 8320 .1 .0 * 21.1 19.2 110
RENO HILL 8400 2.9 .7 414* 30.2 25.5 118
ROACH 9700 .0 1.1 0* 31.3 31.1 101
SAND LAKE 10080 16.9 13.4 126 41.1 29.6 139
SOUTH PASS 9040 .2 3.9 5 31.9 25.1 127
WINDY PEAK 7840 .2 .0 * 18.7 16.8 111
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Basin wide percent of average 69 121
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * 16.8 21.3 79
DIVIDE PEAK 8800 .0 .3 0* 32.8 31.4 104
OLD BATTLE 10000 20.3 9.2 221 50.2 40.7 123
SANDSTONE RS 8150 .0 .0 100* 28.7 26.5 108
WHISKEY PARK 8950 2.3 .2 1150* 44.7 38.9 115
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Basin wide percent of average 233* 109
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .0 .0 100* 22.6 21.3 106
BLIND BULL SUM 8650 15.4 8.9 173 41.1 30.2 136
EAST RIM DIVIDE 7930 .0 .0 100* 22.8 19.9 115
ELKHART PARK G.S. 9400 .1 .0 * 24.8 20.9 119
GROS VENTRE SUMMIT 8775 .0 .0 100* 27.2 20.8 131
KENDALL R.S. 7740 .1 .0 * 30.2 20.4 148
LOOMIS PARK 8240 .1 .0 * 34.6 24.7 140
NEW FORK LAKE 8340 .0 .0 100* 19.1 19.0 101
SNIDER BASIN 8250 .1 .0 * 23.3 19.9 117
SPRING CREEK DIVIDE 9000 .9 .0 * 40.8 34.6 118
TRIPLE PEAK 8500 .0 .0 100* 48.1 39.9 121
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Basin wide percent of average 173* 123
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * 21.2 17.5 121
HEWINTA 9500 .0 .0 100* 20.6 19.9 104
HICKERSON PARK 9150 .0 .0 100* 15.2 16.1 94
HOLE-IN-ROCK 9150 .1 .0 * 15.8 16.1 98
INDIAN CREEK 9425 8.3 .0 * 40.0 33.2 120
KELLEY R.S. 8180 .0 .0 100* 37.6 24.6 153
STEEL CREEK PARK 10100 .7 3.6 19 23.9 21.4 112
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Basin wide percent of average 19* 117
UPPER BEAR RIVER
BUG LAKE 7950 .1 .0 * 38.3 25.6 150
HAYDEN FORK 9400 .0 .0 100* 33.9 27.2 125
KELLEY R.S. 8180 .0 .0 100* 37.6 24.6 153
LILY LAKE 9050 .0 .0 100* 27.1 22.0 123
MONTE CRISTO 8960 1.1 3.8 29 43.6 34.6 126
SALT RIVER SUMMIT 7600 .0 .0 100* 31.3 22.1 142
TRIAL LAKE 9960 .7 4.0 18 43.0 32.6 132
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Basin wide percent of average 23* 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.