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: NOVEMBER 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 .5 .7 71* 2.5 2.0 125
COTTONWOOD CREEK 7600 1.2 .7 171* 2.9 2.2 132
GRANITE CREEK 6770 .2 .6 33* 2.3 2.3 100
GRASSY LAKE 7265 1.6 1.1 145* 3.8 3.3 115
GROS VENTRE SUMMIT 8775 -M 1.1 * 1.4 1.6 88
LEWIS LAKE DIVIDE 7860 2.0 1.4 143* 3.5 3.4 103
PHILLIPS BENCH 8200 1.5 1.2 125* 2.4 2.6 92
SALT RIVER SUMMIT 7600 .1 .0 * 2.2 1.7 129
SNAKE RIVER STATION 6920 -M .6 * -M 2.3 *
SPRING CREEK DIVIDE 9000 1.1 1.4 79* 2.2 2.1 105
THUMB DIVIDE 7980 -M .5 * -M 1.9 *
TOGWOTEE PASS 9580 3.2 2.3 139* 3.1 2.5 124
TWO OCEAN PLATEAU 9360 4.7 3.5 134 4.7 2.8 168
WILLOW CREEK 8450 1.1 1.2 92* 4.3 2.8 154
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Basin wide percent of average 121* 120
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.8 3.0 127 2.9 1.9 153
BLACK BEAR 7950 3.8 2.7 141* 4.4 3.5 126
CANYON 7940 1.7 .8 212* 3.0 1.8 167
FISHER CREEK 9100 5.1 2.6 196* 4.8 3.0 160
MADISON PLATEAU 7750 1.8 1.5 120* 3.3 2.5 132
NORTHEAST ENTRANCE 7350 .1 .3 33* 3.5 1.5 233
PARKER PEAK 9400 3.3 3.7 89 3.2 2.2 145
SYLVAN LAKE 8420 2.7 2.5 108 -M 2.6 *
THUMB DIVIDE 7980 -M .5 * -M 1.9 *
TWO OCEAN PLATEAU 9360 4.7 3.5 134 4.7 2.8 168
WHISKEY CREEK 6800 .6 .8 75* 2.5 2.2 114
WHITE MILL 8700 -M 1.9 * 5.0 2.7 185
WOLVERINE 7650 .1 .3 33* 2.3 1.6 144
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Basin wide percent of average 128* 154
WIND RIVER
BURROUGHS CREEK 8750 1.9 .9 211* 2.5 1.6 156
COLD SPRINGS 9630 1.9 .9 211 2.6 1.9 137
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 2.8 2.1 133 3.0 2.0 150
LITTLE WARM 9620 1.3 1.0 130* 2.7 1.8 150
SOUTH PASS 9040 2.4 2.6 92 3.6 2.2 164
ST. LAWRENCE ALT 8620 2.2 .8 275 2.5 1.7 147
TOGWOTEE PASS 9580 3.2 2.3 139* 3.1 2.5 124
TOWNSEND CREEK 8700 1.9 1.0 190* 2.9 1.9 153
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Basin wide percent of average 152* 147
BIGHORN BASIN
BALD MTN. 9375 3.9 2.6 150 3.6 2.3 157
BEAR TRAP MEADOW 7900 .7 .7 100* 1.4 1.6 88
BLACKWATER 9780 4.3 2.5 172* 3.4 2.4 142
BONE SPRINGS DIV 9350 3.7 2.7 137 4.1 2.2 186
EVENING STAR 9200 -M 3.8 * 5.4 2.9 186
GRAVE SPRINGS 8550 1.1 -M * 2.1 1.9 111
KIRWIN 9550 2.6 1.5 173 2.9 1.6 181
LOST CREEK 8080 -M 1.3 * -M 2.0 *
MARQUETTE 8760 3.8 1.0 380 4.3 1.8 239
MIDDLE POWDER 7760 .9 1.3 69* 1.9 2.1 90
OWL CREEK 8975 1.6 .5 320 1.7 1.0 170
POWDER RIVER PASS 9480 .9 1.2 75 1.6 1.9 84
SHELL CREEK 9580 2.9 2.5 116 2.2 1.9 116
SYLVAN LAKE 8420 2.7 2.5 108 -M 2.6 *
SYLVAN ROAD 8120 .4 1.6 25 3.3 2.2 150
TIMBER CREEK 7950 2.3 .3 767* 3.1 1.3 238
YOUNTS PEAK 8350 3.1 2.3 135 2.9 1.9 153
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Basin wide percent of average 146 151
SHOSHONE RIVER
BLACKWATER 9780 4.3 2.5 172* 3.4 2.4 142
EVENING STAR 9200 -M 3.8 * 5.4 2.9 186
KIRWIN 9550 2.6 1.5 173 2.9 1.6 181
MARQUETTE 8760 3.8 1.0 380 4.3 1.8 239
SYLVAN LAKE 8420 2.7 2.5 108 -M 2.6 *
SYLVAN ROAD 8120 .4 1.6 25 3.3 2.2 150
YOUNTS PEAK 8350 3.1 2.3 135 2.9 1.9 153
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Basin wide percent of average 148 173
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .7 .7 100* 1.4 1.6 88
BONE SPRINGS DIV 9350 3.7 2.7 137 4.1 2.2 186
BURGESS JUNCTION 7880 1.2 1.6 75 2.7 2.0 135
CLOUD PEAK RESERVOIR 9860 1.4 1.3 108* 3.6 2.1 171
DOME LAKE 8880 2.3 1.9 121 3.4 2.3 148
GRAVE SPRINGS 8550 1.1 -M * 2.1 1.9 111
HANSEN SAWMILL 8760 1.1 .8 138 2.1 1.6 131
LOST CREEK 8080 -M 1.3 * -M 2.0 *
MIDDLE POWDER 7760 .9 1.3 69* 1.9 2.1 90
POWDER RIVER PASS 9480 .9 1.2 75 1.6 1.9 84
SUCKER CREEK 8880 1.8 1.2 150* 3.3 2.2 150
TIE CREEK 6870 1.2 -M * 3.2 1.9 168
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Basin wide percent of average 110* 135
BELLE FOURCHE
BLIND PARK 6890 .6 1.6 38 2.0 1.8 111
NORTH RAPID CREEK 6130 .7 -M * 1.4 -M *
WARREN PEAK 6520 .1 1.6 6 1.8 1.4 129
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Basin wide percent of average 22 119
UPPER N. PLATTE RIVER
COLUMBINE 9400 1.3 1.6 81* 3.7 2.5 148
DIVIDE PEAK 8800 1.5 2.1 71* 3.3 3.1 106
ELK RIVER 8700 .8 .4 200* 3.1 2.3 135
JOE WRIGHT 10120 2.4 3.1 77 4.6 3.5 131
NORTH FRENCH CREEK 10100 -M 2.2 * 3.9 2.3 170
OLD BATTLE 10000 3.2 3.6 89* 5.0 3.2 156
SOUTH BRUSH CREEK 8400 .3 .4 75* 1.9 2.3 83
TOWER 10500 5.3 6.0 88 5.8 4.0 145
WEBBER SPRINGS 9200 1.5 1.9 79* 4.1 3.0 137
WILLOW CREEK PASS 9540 1.9 1.1 173* 2.4 1.8 133
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Basin wide percent of average 90* 135
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.6 1.9 84* 3.1 2.4 129
CASPER MTN. 7900 2.9 1.3 223* 3.1 2.5 124
DEADMAN HILL 10220 3.7 1.4 264* 3.1 2.4 129
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 1.2 .9 133* 2.2 1.5 147
RENO HILL 8400 1.9 1.7 112 2.3 2.5 92
ROACH 9700 1.8 1.4 129* 3.1 2.7 115
SAND LAKE 10080 4.2 3.1 135* 4.8 2.6 185
SOUTH PASS 9040 2.4 2.6 92 3.6 2.2 164
WINDY PEAK 7840 .8 .2 400* 1.9 1.2 158
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Basin wide percent of average 141* 136
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .4 0* 3.2 1.8 178
DIVIDE PEAK 8800 1.5 2.1 71* 3.3 3.1 106
OLD BATTLE 10000 3.2 3.6 89* 5.0 3.2 156
SANDSTONE RS 8150 .0 .8 0* 3.2 1.7 188
WHISKEY PARK 8950 1.5 2.3 65* 4.1 1.9 216
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Basin wide percent of average 67* 161
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.6 .7 229* 2.3 1.6 144
BLIND BULL SUM 8650 1.7 2.3 74* 2.1 2.0 105
EAST RIM DIVIDE 7930 .6 .4 150* .9 1.5 60
ELKHART PARK G.S. 9400 1.2 1.0 120* 2.1 1.6 131
GROS VENTRE SUMMIT 8775 -M 1.1 * 1.4 1.6 88
KENDALL R.S. 7740 1.0 .0 * 2.3 1.5 153
LOOMIS PARK 8240 1.1 .5 220* 1.7 1.8 94
NEW FORK LAKE 8340 1.2 .0 * 1.3 1.4 93
SNIDER BASIN 8250 .5 .0 * 1.1 1.5 73
SPRING CREEK DIVIDE 9000 1.1 1.4 79* 2.2 2.1 105
TRIPLE PEAK 8500 2.1 1.0 210* 2.5 2.8 89
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Basin wide percent of average 129* 103
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * 1.1 1.3 85
HEWINTA 9500 1.6 .2 800* 3.6 2.4 150
HICKERSON PARK 9150 2.8 .2 1400* 3.8 2.1 181
HOLE-IN-ROCK 9150 1.3 .1 1300* 3.3 2.1 157
INDIAN CREEK 9425 1.7 1.7 100* 1.4 2.3 61
KELLEY R.S. 8180 .7 .5 140* 1.4 1.8 78
STEEL CREEK PARK 10100 1.7 2.0 85 4.4 2.4 183
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Basin wide percent of average 209* 132
UPPER BEAR RIVER
BUG LAKE 7950 .5 1.1 45* 2.1 3.3 64
HAYDEN FORK 9400 .3 .9 33* 3.3 2.5 132
KELLEY R.S. 8180 .7 .5 140* 1.4 1.8 78
LILY LAKE 9050 1.0 1.0 100* 3.0 2.7 111
MONTE CRISTO 8960 .9 1.4 64* 2.6 3.5 74
SALT RIVER SUMMIT 7600 .1 .0 * 2.2 1.7 129
TRIAL LAKE 9960 1.5 1.9 79* 2.7 2.9 93
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Basin wide percent of average 72* 94
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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.