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 MONDAY: NOVEMBER 3 , 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 .9 44* 2.6 2.3 113
COTTONWOOD CREEK 7600 1.0 .9 111* 3.0 2.5 120
GRANITE CREEK 6770 .2 .8 25* 2.3 2.6 88
GRASSY LAKE 7265 1.9 1.5 127* 3.9 3.8 103
GROS VENTRE SUMMIT 8775 -M 1.3 * 1.4 1.8 78
LEWIS LAKE DIVIDE 7860 2.1 1.8 117* 3.6 3.9 92
PHILLIPS BENCH 8200 1.3 1.4 93* 2.5 3.0 83
SALT RIVER SUMMIT 7600 .4 .1 400* 2.1 1.9 111
SNAKE RIVER STATION 6920 -M .8 * -M 2.6 *
SPRING CREEK DIVIDE 9000 1.3 1.7 76* 2.2 2.5 88
THUMB DIVIDE 7980 -M .7 * -M 2.2 *
TOGWOTEE PASS 9580 3.2 2.5 128* 3.1 2.9 107
TWO OCEAN PLATEAU 9360 4.7 3.8 124 4.7 3.2 147
WILLOW CREEK 8450 1.1 1.5 73* 4.3 3.2 134
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Basin wide percent of average 104* 106
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.7 3.3 112 3.0 2.1 143
BLACK BEAR 7950 3.7 3.1 119* 4.5 3.9 115
CANYON 7940 1.7 .9 189* 3.1 2.0 155
FISHER CREEK 9100 5.3 3.0 177* 5.0 3.4 147
MADISON PLATEAU 7750 1.9 1.7 112* 3.3 2.8 118
NORTHEAST ENTRANCE 7350 .2 .4 50* 3.6 1.6 225
PARKER PEAK 9400 3.4 4.0 85 3.4 2.4 142
SYLVAN LAKE 8420 2.7 2.8 96 -M 2.9 *
THUMB DIVIDE 7980 -M .7 * -M 2.2 *
TWO OCEAN PLATEAU 9360 4.7 3.8 124 4.7 3.2 147
WHISKEY CREEK 6800 .7 1.0 70* 2.6 2.4 108
WHITE MILL 8700 4.9 2.2 223* 5.1 3.0 170
WOLVERINE 7650 .2 .4 50* 2.5 1.8 139
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Basin wide percent of average 124* 143
WIND RIVER
BURROUGHS CREEK 8750 2.0 1.1 182* 2.6 1.8 144
COLD SPRINGS 9630 2.0 1.0 200 2.7 2.0 135
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 2.9 2.3 126 3.2 2.2 145
LITTLE WARM 9620 1.4 1.2 117* 2.7 2.0 135
SOUTH PASS 9040 2.5 2.8 89 3.6 2.4 150
ST. LAWRENCE ALT 8620 2.2 .9 244 2.8 1.8 156
TOGWOTEE PASS 9580 3.2 2.5 128* 3.1 2.9 107
TOWNSEND CREEK 8700 1.8 1.1 164 3.2 2.0 160
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Basin wide percent of average 140 140
BIGHORN BASIN
BALD MTN. 9375 4.5 2.8 161 4.3 2.5 172
BEAR TRAP MEADOW 7900 .7 .8 88 1.4 1.7 82
BLACKWATER 9780 4.4 2.7 163 3.6 2.6 138
BONE SPRINGS DIV 9350 3.7 2.9 128 4.2 2.3 183
EVENING STAR 9200 4.1 4.2 98 5.5 3.2 172
GRAVE SPRINGS 8550 1.2 -M * 2.2 2.0 110
KIRWIN 9550 2.6 1.6 162 3.0 1.7 176
LOST CREEK 8080 -M 1.5 * -M 2.1 *
MARQUETTE 8760 3.8 1.1 345 4.4 1.9 232
MIDDLE POWDER 7760 .9 1.5 60* 1.9 2.2 86
OWL CREEK 8975 1.6 .5 320 1.9 1.1 173
POWDER RIVER PASS 9480 1.1 1.3 85 1.9 2.0 95
SHELL CREEK 9580 3.2 2.7 119 2.5 2.0 125
SYLVAN LAKE 8420 2.7 2.8 96 -M 2.9 *
SYLVAN ROAD 8120 .4 1.7 24 3.5 2.4 146
TIMBER CREEK 7950 2.4 .4 600* 3.2 1.4 229
YOUNTS PEAK 8350 2.9 2.5 116 2.9 2.1 138
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Basin wide percent of average 132 149
SHOSHONE RIVER
BLACKWATER 9780 4.4 2.7 163 3.6 2.6 138
EVENING STAR 9200 4.1 4.2 98 5.5 3.2 172
KIRWIN 9550 2.6 1.6 162 3.0 1.7 176
MARQUETTE 8760 3.8 1.1 345 4.4 1.9 232
SYLVAN LAKE 8420 2.7 2.8 96 -M 2.9 *
SYLVAN ROAD 8120 .4 1.7 24 3.5 2.4 146
YOUNTS PEAK 8350 2.9 2.5 116 2.9 2.1 138
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Basin wide percent of average 126 165
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .7 .8 88 1.4 1.7 82
BONE SPRINGS DIV 9350 3.7 2.9 128 4.2 2.3 183
BURGESS JUNCTION 7880 1.3 1.7 76 2.9 2.1 138
CLOUD PEAK RESERVOIR 9860 1.7 1.4 121* 3.9 2.2 177
DOME LAKE 8880 2.5 2.0 125 3.7 2.5 148
GRAVE SPRINGS 8550 1.2 -M * 2.2 2.0 110
HANSEN SAWMILL 8760 1.0 .9 111 2.3 1.7 135
LOST CREEK 8080 -M 1.5 * -M 2.1 *
MIDDLE POWDER 7760 .9 1.5 60* 1.9 2.2 86
POWDER RIVER PASS 9480 1.1 1.3 85 1.9 2.0 95
SUCKER CREEK 8880 2.2 1.3 169* 3.6 2.3 157
TIE CREEK 6870 1.2 -M * 3.5 2.0 175
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Basin wide percent of average 109 137
BELLE FOURCHE
BLIND PARK 6890 1.0 1.7 59 2.5 1.9 132
NORTH RAPID CREEK 6130 .8 -M * 1.5 -M *
WARREN PEAK 6520 .4 1.7 24 2.0 1.5 133
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Basin wide percent of average 41 132
UPPER N. PLATTE RIVER
COLUMBINE 9400 1.3 1.8 72* 3.5 2.7 130
DIVIDE PEAK 8800 2.4 2.3 104 3.4 3.3 103
ELK RIVER 8700 .1 .6 17* 3.1 2.5 124
JOE WRIGHT 10120 2.7 3.4 79 4.8 3.8 126
NORTH FRENCH CREEK 10100 2.5 2.5 100* 4.0 2.6 154
OLD BATTLE 10000 3.1 3.9 79 5.0 3.6 139
SOUTH BRUSH CREEK 8400 .3 .5 60* 1.9 2.5 76
TOWER 10500 5.5 6.5 85 5.8 4.4 132
WEBBER SPRINGS 9200 1.5 2.3 65* 4.1 3.4 121
WILLOW CREEK PASS 9540 1.9 1.2 158* 2.0 1.9 105
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Basin wide percent of average 85* 122
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.7 2.3 74* 3.3 2.6 127
CASPER MTN. 7900 2.7 1.5 180* 3.1 2.7 115
DEADMAN HILL 10220 3.8 1.6 238* 3.2 2.6 123
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 1.3 1.0 130* 2.2 1.6 138
RENO HILL 8400 2.0 1.9 105 2.3 2.8 82
ROACH 9700 1.8 1.6 112* 3.2 2.9 110
SAND LAKE 10080 4.2 3.5 120* 4.8 2.8 171
SOUTH PASS 9040 2.5 2.8 89 3.6 2.4 150
WINDY PEAK 7840 .8 .4 200* 2.0 1.3 154
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Basin wide percent of average 125* 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .5 0* 3.2 2.0 160
DIVIDE PEAK 8800 2.4 2.3 104 3.4 3.3 103
OLD BATTLE 10000 3.1 3.9 79 5.0 3.6 139
SANDSTONE RS 8150 .0 1.0 0* 3.2 1.9 168
WHISKEY PARK 8950 1.5 2.6 58* 3.9 2.2 177
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Basin wide percent of average 68* 144
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.7 .9 189* 2.3 1.8 128
BLIND BULL SUM 8650 1.7 2.7 63* 2.1 2.3 91
EAST RIM DIVIDE 7930 .8 .5 160* .9 1.7 53
ELKHART PARK G.S. 9400 1.3 1.1 118* 2.1 1.8 117
GROS VENTRE SUMMIT 8775 -M 1.3 * 1.4 1.8 78
KENDALL R.S. 7740 1.1 .2 550* 2.3 1.7 135
LOOMIS PARK 8240 1.1 .7 157* 1.6 2.0 80
NEW FORK LAKE 8340 1.2 .1 1200* 1.4 1.6 88
SNIDER BASIN 8250 .0 .2 0* 1.2 1.7 71
SPRING CREEK DIVIDE 9000 1.3 1.7 76* 2.2 2.5 88
TRIPLE PEAK 8500 2.0 1.3 154* 2.4 3.2 75
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Basin wide percent of average 130* 90
LOWER GREEN RIVER
HAMS FORK 7840 .1 .1 100* 1.1 1.5 73
HEWINTA 9500 .6 .3 200* 3.7 2.5 148
HICKERSON PARK 9150 2.8 .3 933* 3.8 2.2 173
HOLE-IN-ROCK 9150 1.2 .2 600* 3.3 2.2 150
INDIAN CREEK 9425 1.7 2.0 85* 1.5 2.6 58
KELLEY R.S. 8180 .7 .7 100* 1.4 2.0 70
STEEL CREEK PARK 10100 1.8 2.2 82 4.5 2.5 180
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Basin wide percent of average 153* 125
UPPER BEAR RIVER
BUG LAKE 7950 1.3 1.3 100* 2.1 3.5 60
HAYDEN FORK 9400 .2 1.1 18* 3.3 2.7 122
KELLEY R.S. 8180 .7 .7 100* 1.4 2.0 70
LILY LAKE 9050 1.0 1.1 91* 3.1 2.9 107
MONTE CRISTO 8960 .5 1.6 31* 2.6 3.8 68
SALT RIVER SUMMIT 7600 .4 .1 400* 2.1 1.9 111
TRIAL LAKE 9960 1.5 2.2 68* 2.6 3.2 81
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Basin wide percent of average 69* 86
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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.