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: NOVEMBER 2 , 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 .4 .8 50* 2.6 2.2 118
COTTONWOOD CREEK 7600 1.3 .8 162* 3.0 2.4 125
GRANITE CREEK 6770 .2 .7 29* 2.3 2.5 92
GRASSY LAKE 7265 1.6 1.3 123* 3.9 3.5 111
GROS VENTRE SUMMIT 8775 -M 1.2 * 1.4 1.7 82
LEWIS LAKE DIVIDE 7860 2.1 1.6 131* 3.5 3.6 97
PHILLIPS BENCH 8200 1.4 1.3 108* 2.5 2.8 89
SALT RIVER SUMMIT 7600 .2 .1 200* 2.0 1.8 111
SNAKE RIVER STATION 6920 -M .7 * -M 2.5 *
SPRING CREEK DIVIDE 9000 1.1 1.6 69* 2.2 2.3 96
THUMB DIVIDE 7980 -M .6 * -M 2.0 *
TOGWOTEE PASS 9580 3.2 2.4 133* 3.1 2.7 115
TWO OCEAN PLATEAU 9360 4.7 3.6 131 4.7 3.0 157
WILLOW CREEK 8450 1.1 1.4 79* 4.3 3.0 143
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Basin wide percent of average 111* 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.6 3.1 116 2.9 2.0 145
BLACK BEAR 7950 3.8 2.9 131* 4.3 3.7 116
CANYON 7940 1.8 .9 200* 3.0 1.9 158
FISHER CREEK 9100 5.3 2.8 189* 4.9 3.2 153
MADISON PLATEAU 7750 1.8 1.6 112* 3.3 2.6 127
NORTHEAST ENTRANCE 7350 .1 .4 25* 3.5 1.6 219
PARKER PEAK 9400 3.4 3.8 89 3.4 2.3 148
SYLVAN LAKE 8420 2.7 2.6 104 -M 2.7 *
THUMB DIVIDE 7980 -M .6 * -M 2.0 *
TWO OCEAN PLATEAU 9360 4.7 3.6 131 4.7 3.0 157
WHISKEY CREEK 6800 .6 .9 67* 2.5 2.3 109
WHITE MILL 8700 5.0 2.0 250* 5.1 2.9 176
WOLVERINE 7650 .1 .4 25* 2.4 1.7 141
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Basin wide percent of average 132* 147
WIND RIVER
BURROUGHS CREEK 8750 1.9 1.0 190* 2.6 1.7 153
COLD SPRINGS 9630 1.9 1.0 190 2.6 2.0 130
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 2.8 2.2 127 3.1 2.1 148
LITTLE WARM 9620 1.3 1.1 118* 2.7 1.9 142
SOUTH PASS 9040 2.4 2.7 89 3.6 2.3 157
ST. LAWRENCE ALT 8620 2.2 .8 275 2.5 1.8 139
TOGWOTEE PASS 9580 3.2 2.4 133* 3.1 2.7 115
TOWNSEND CREEK 8700 1.7 1.1 155 2.9 2.0 145
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Basin wide percent of average 141 140
BIGHORN BASIN
BALD MTN. 9375 4.3 2.7 159 3.9 2.4 163
BEAR TRAP MEADOW 7900 .7 .8 88 1.4 1.7 82
BLACKWATER 9780 4.3 2.6 165 3.4 2.5 136
BONE SPRINGS DIV 9350 3.8 2.8 136 4.2 2.3 183
EVENING STAR 9200 4.1 4.0 102 5.5 3.0 183
GRAVE SPRINGS 8550 1.3 -M * 2.2 2.0 110
KIRWIN 9550 2.5 1.6 156 2.9 1.7 171
LOST CREEK 8080 -M 1.4 * -M 2.1 *
MARQUETTE 8760 3.7 1.0 370 4.2 1.9 221
MIDDLE POWDER 7760 .9 1.4 64* 1.9 2.2 86
OWL CREEK 8975 1.5 .5 300 1.7 1.0 170
POWDER RIVER PASS 9480 1.1 1.3 85 1.8 2.0 90
SHELL CREEK 9580 3.2 2.6 123 2.4 2.0 120
SYLVAN LAKE 8420 2.7 2.6 104 -M 2.7 *
SYLVAN ROAD 8120 .4 1.7 24 3.4 2.3 148
TIMBER CREEK 7950 2.4 .3 800* 3.2 1.3 246
YOUNTS PEAK 8350 3.1 2.4 129 2.9 2.0 145
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Basin wide percent of average 137 149
SHOSHONE RIVER
BLACKWATER 9780 4.3 2.6 165 3.4 2.5 136
EVENING STAR 9200 4.1 4.0 102 5.5 3.0 183
KIRWIN 9550 2.5 1.6 156 2.9 1.7 171
MARQUETTE 8760 3.7 1.0 370 4.2 1.9 221
SYLVAN LAKE 8420 2.7 2.6 104 -M 2.7 *
SYLVAN ROAD 8120 .4 1.7 24 3.4 2.3 148
YOUNTS PEAK 8350 3.1 2.4 129 2.9 2.0 145
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Basin wide percent of average 131 166
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .7 .8 88 1.4 1.7 82
BONE SPRINGS DIV 9350 3.8 2.8 136 4.2 2.3 183
BURGESS JUNCTION 7880 1.2 1.7 71 2.8 2.1 133
CLOUD PEAK RESERVOIR 9860 1.6 1.4 114* 3.6 2.2 164
DOME LAKE 8880 2.4 2.0 120 3.6 2.4 150
GRAVE SPRINGS 8550 1.3 -M * 2.2 2.0 110
HANSEN SAWMILL 8760 1.1 .8 138 2.2 1.6 138
LOST CREEK 8080 -M 1.4 * -M 2.1 *
MIDDLE POWDER 7760 .9 1.4 64* 1.9 2.2 86
POWDER RIVER PASS 9480 1.1 1.3 85 1.8 2.0 90
SUCKER CREEK 8880 2.0 1.2 167* 3.4 2.3 148
TIE CREEK 6870 1.1 -M * 3.3 2.0 165
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Basin wide percent of average 110 133
BELLE FOURCHE
BLIND PARK 6890 1.1 1.7 65 2.5 1.8 139
NORTH RAPID CREEK 6130 .9 -M * 1.6 -M *
WARREN PEAK 6520 .4 1.7 24 2.1 1.4 150
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Basin wide percent of average 44 144
UPPER N. PLATTE RIVER
COLUMBINE 9400 1.4 1.7 82* 3.6 2.6 138
DIVIDE PEAK 8800 1.5 2.2 68 3.3 3.2 103
ELK RIVER 8700 .5 .5 100* 3.1 2.4 129
JOE WRIGHT 10120 2.6 3.2 81 4.7 3.6 131
NORTH FRENCH CREEK 10100 2.9 2.4 121* 4.0 2.4 167
OLD BATTLE 10000 3.1 3.8 82* 4.9 3.4 144
SOUTH BRUSH CREEK 8400 .2 .5 40* 1.9 2.4 79
TOWER 10500 5.5 6.3 87 5.9 4.2 140
WEBBER SPRINGS 9200 1.5 2.1 71* 4.1 3.2 128
WILLOW CREEK PASS 9540 2.0 1.2 167* 2.3 1.9 121
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Basin wide percent of average 89* 129
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.6 2.1 76* 3.2 2.5 128
CASPER MTN. 7900 2.8 1.4 200* 3.1 2.6 119
DEADMAN HILL 10220 3.7 1.5 247* 3.2 2.5 128
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 1.3 1.0 130* 2.2 1.6 138
RENO HILL 8400 1.9 1.8 106 2.3 2.6 88
ROACH 9700 1.8 1.5 120* 3.2 2.8 114
SAND LAKE 10080 4.2 3.3 127* 4.8 2.7 178
SOUTH PASS 9040 2.4 2.7 89 3.6 2.3 157
WINDY PEAK 7840 .8 .3 267* 2.0 1.2 167
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Basin wide percent of average 131* 133
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .5 0* 3.2 1.9 168
DIVIDE PEAK 8800 1.5 2.2 68 3.3 3.2 103
OLD BATTLE 10000 3.1 3.8 82* 4.9 3.4 144
SANDSTONE RS 8150 .0 .9 0* 3.1 1.8 172
WHISKEY PARK 8950 1.5 2.5 60* 3.9 2.0 195
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Basin wide percent of average 62* 150
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.6 .8 200* 2.2 1.7 129
BLIND BULL SUM 8650 1.6 2.5 64* 2.1 2.1 100
EAST RIM DIVIDE 7930 .7 .5 140* .9 1.6 56
ELKHART PARK G.S. 9400 1.2 1.1 109* 2.1 1.7 124
GROS VENTRE SUMMIT 8775 -M 1.2 * 1.4 1.7 82
KENDALL R.S. 7740 1.0 .1 1000* 2.3 1.6 144
LOOMIS PARK 8240 1.1 .6 183* 1.6 1.9 84
NEW FORK LAKE 8340 1.2 .1 1200* 1.4 1.5 93
SNIDER BASIN 8250 1.0 .1 1000* 1.1 1.6 69
SPRING CREEK DIVIDE 9000 1.1 1.6 69* 2.2 2.3 96
TRIPLE PEAK 8500 2.1 1.2 175* 2.4 3.0 80
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Basin wide percent of average 147* 95
LOWER GREEN RIVER
HAMS FORK 7840 .1 .1 100* 1.1 1.4 79
HEWINTA 9500 1.4 .3 467* 3.7 2.5 148
HICKERSON PARK 9150 2.9 .3 967* 3.8 2.2 173
HOLE-IN-ROCK 9150 1.4 .2 700* 3.3 2.2 150
INDIAN CREEK 9425 1.7 1.9 89* 1.5 2.5 60
KELLEY R.S. 8180 .7 .6 117* 1.4 1.9 74
STEEL CREEK PARK 10100 1.7 2.1 81 4.4 2.5 176
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Basin wide percent of average 180* 126
UPPER BEAR RIVER
BUG LAKE 7950 .9 1.2 75* 2.1 3.4 62
HAYDEN FORK 9400 .2 1.0 20* 3.3 2.6 127
KELLEY R.S. 8180 .7 .6 117* 1.4 1.9 74
LILY LAKE 9050 1.0 1.1 91* 3.1 2.8 111
MONTE CRISTO 8960 .5 1.5 33* 2.6 3.6 72
SALT RIVER SUMMIT 7600 .2 .1 200* 2.0 1.8 111
TRIAL LAKE 9960 1.5 2.0 75* 2.7 3.0 90
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Basin wide percent of average 67* 90
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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.