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 8 , 2009
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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 .8 1.1 73 3.0 2.7 111
COTTONWOOD CREEK 7670 -M 1.5 * -M 4.0 *
GRAND TARGHEE 9260 6.4 -M * 5.9 -M *
GRANITE CREEK 6770 .0 .9 0 2.6 2.4 108
GRASSY LAKE 7265 1.9 2.4 79 4.3 4.4 98
GROS VENTRE SUMMIT 8750 2.2 1.8 122 2.3 2.3 100
GUNSIGHT PASS 9820 1.8 -M * 3.1 -M *
LEWIS LAKE DIVIDE 7850 -M 2.2 * -M 4.3 *
PHILLIPS BENCH 8200 1.3 2.2 59 3.4 3.2 106
SALT RIVER SUMMIT 7760 .0 .7 0 2.5 2.5 100
SNAKE RIVER STATION 6920 .6 1.1 55 3.7 3.0 123
SPRING CREEK DIVIDE 9000 3.3 2.3 143 4.1 3.4 121
THUMB DIVIDE 7980 1.3 1.3 100 4.4 2.6 169
TOGWOTEE PASS 9580 4.3 3.4 126 4.4 3.6 122
TWO OCEAN PLATEAU 9240 5.5 4.1 134 4.3 4.0 108
WILLOW CREEK 8380 2.0 2.8 71 5.6 4.7 119
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Basin wide percent of average 96 115
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 4.2 3.6 117 3.5 2.8 125
BLACK BEAR 8170 4.8 3.8 126 6.1 4.8 127
CANYON 7870 1.6 1.1 145 3.0 2.4 125
FISHER CREEK 9100 5.6 3.8 147 6.1 4.5 136
MADISON PLATEAU 7750 2.3 2.3 100 5.2 3.3 158
NORTHEAST ENTRANCE 7350 .2 .6 33 3.0 2.0 150
PARKER PEAK 9400 5.0 3.4 147 3.9 2.9 134
SYLVAN LAKE 8420 1.6 2.8 57 3.4 3.4 100
THUMB DIVIDE 7980 1.3 1.3 100 4.4 2.6 169
TWO OCEAN PLATEAU 9240 5.5 4.1 134 4.3 4.0 108
WHISKEY CREEK 6800 .3 1.2 25 3.2 2.9 110
WHITE MILL 8700 4.5 2.8 161 4.4 3.5 126
WOLVERINE 7650 .3 .9 33 2.2 2.3 96
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Basin wide percent of average 117 127
WIND RIVER
BURROUGHS CREEK 8750 3.0 1.5 200 2.8 2.2 127
COLD SPRINGS 9630 2.3 1.5 153 3.0 2.5 120
DEER PARK 9700 4.5 3.2 141 5.7 3.5 163
HOBBS PARK 10100 5.0 2.8 179 4.8 2.7 178
LITTLE WARM 9370 1.8 1.5 120 2.4 2.3 104
SOUTH PASS 9040 3.9 2.2 177 4.8 2.9 166
ST. LAWRENCE ALT 8620 1.9 1.3 146 3.7 2.2 168
TOGWOTEE PASS 9580 4.3 3.4 126 4.4 3.6 122
TOWNSEND CREEK 8700 3.2 1.5 213 4.9 2.7 181
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Basin wide percent of average 158 148
BIGHORN BASIN
BALD MTN. 9380 4.1 3.5 117 3.3 3.0 110
BEAR TRAP MEADOW 8200 1.2 .8 150 2.2 2.2 100
BLACKWATER 9780 5.4 3.9 138 4.6 3.5 131
BONE SPRINGS DIV 9350 3.3 3.3 100 3.1 3.1 100
EVENING STAR 9200 5.0 3.8 132 6.0 3.8 158
GRAVE SPRINGS 8550 2.4 1.6 150 3.6 2.4 150
KIRWIN 9550 3.1 2.5 124 2.7 2.4 113
MARQUETTE 8760 2.9 2.4 121 3.1 2.8 111
MIDDLE POWDER 7760 2.5 1.8 139 3.1 3.2 97
OWL CREEK 8975 2.4 1.1 218 2.0 1.5 133
POWDER RIVER PASS 9480 2.1 1.7 124 2.3 2.4 96
SHELL CREEK 9580 3.6 3.3 109 3.0 2.6 115
SYLVAN LAKE 8420 1.6 2.8 57 3.4 3.4 100
SYLVAN ROAD 7120 .6 1.0 60 3.0 2.8 107
TIMBER CREEK 7950 1.2 1.5 80 2.4 2.0 120
YOUNTS PEAK 8350 2.6 2.1 124 2.5 2.5 100
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Basin wide percent of average 119 115
SHOSHONE RIVER
BLACKWATER 9780 5.4 3.9 138 4.6 3.5 131
EVENING STAR 9200 5.0 3.8 132 6.0 3.8 158
KIRWIN 9550 3.1 2.5 124 2.7 2.4 113
MARQUETTE 8760 2.9 2.4 121 3.1 2.8 111
SYLVAN LAKE 8420 1.6 2.8 57 3.4 3.4 100
SYLVAN ROAD 7120 .6 1.0 60 3.0 2.8 107
YOUNTS PEAK 8350 2.6 2.1 124 2.5 2.5 100
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Basin wide percent of average 115 119
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.2 .8 150 2.2 2.2 100
BIG GOOSE 7990 1.6 1.1 145 3.1 2.4 129
BONE SPRINGS DIV 9350 3.3 3.3 100 3.1 3.1 100
BURGESS JUNCTION 7880 2.9 2.1 138 3.6 2.7 133
CLOUD PEAK RESERVOIR 9860 3.5 2.1 167 3.1 3.2 97
DOME LAKE 8880 2.3 2.5 92 3.2 3.1 103
GRAVE SPRINGS 8550 2.4 1.6 150 3.6 2.4 150
HANSEN SAWMILL 8360 1.2 1.2 100 2.1 2.2 95
MIDDLE POWDER 7760 2.5 1.8 139 3.1 3.2 97
POWDER RIVER PASS 9480 2.1 1.7 124 2.3 2.4 96
SUCKER CREEK 8880 3.5 1.8 194 3.9 2.9 134
TIE CREEK 6870 .4 1.1 36 3.9 2.8 139
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Basin wide percent of average 127 114
BELLE FOURCHE
BLIND PARK 6890 .9 1.2 75 4.1 3.1 132
COLE CANYON 5910 .0 1.2 0 4.1 2.1 195
NORTH RAPID CREEK 6130 .9 .7 129 4.0 2.9 138
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Basin wide percent of average 58 151
UPPER N. PLATTE RIVER
COLUMBINE 9160 .9 1.6 56 4.0 3.1 129
DIVIDE PEAK 8880 2.4 2.4 100 5.3 3.4 156
ELK RIVER 8700 .2 1.0 20 3.2 2.8 114
JOE WRIGHT 10120 3.1 3.5 89 4.8 4.3 112
NORTH FRENCH CREEK 10130 6.9 4.1 168 7.2 4.3 167
OLD BATTLE 10000 7.3 4.2 174 7.7 4.6 167
SAGE CREEK BASIN 7850 1.2 1.4 86 2.8 2.0 140
SOUTH BRUSH CREEK 8440 .8 1.1 73 4.2 3.2 131
TOWER 10500 7.3 5.3 138 7.5 5.3 142
WEBBER SPRINGS 9250 3.3 2.8 118 6.2 4.0 155
WILLOW CREEK PASS 9540 .5 1.7 29 3.1 2.5 124
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Basin wide percent of average 116 142
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 4.7 2.9 162 5.6 3.2 175
CASPER MTN. 7900 3.1 2.4 129 3.9 3.2 122
DEADMAN HILL 10220 1.2 2.9 41 4.7 3.1 152
DEER PARK 9700 4.5 3.2 141 5.7 3.5 163
LAPRELE CREEK 8375 1.5 1.5 100 3.6 2.5 144
RENO HILL 8400 3.5 2.2 159 4.9 3.2 153
ROACH 9700 3.5 1.8 194 5.1 2.9 176
SAND LAKE 10050 7.5 4.5 167 7.9 3.9 203
SOUTH PASS 9040 3.9 2.2 177 4.8 2.9 166
WINDY PEAK 7900 1.4 .9 156 3.8 2.2 173
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Basin wide percent of average 142 163
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .8 12 2.1 2.4 88
DIVIDE PEAK 8880 2.4 2.4 100 5.3 3.4 156
OLD BATTLE 10000 7.3 4.2 174 7.7 4.6 167
SANDSTONE RS 8150 -M .8 * 2.4 3.0 80
WHISKEY PARK 8950 2.3 2.5 92 5.8 3.8 153
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Basin wide percent of average 122 135
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.0 1.7 176 3.3 2.3 143
BLIND BULL SUM 8650 2.7 2.6 104 2.4 2.9 83
EAST RIM DIVIDE 7930 .2 1.0 20 2.0 1.8 111
ELKHART PARK G.S. 9400 2.4 1.3 185 2.8 2.5 112
GROS VENTRE SUMMIT 8750 2.2 1.8 122 2.3 2.3 100
GUNSIGHT PASS 9820 1.8 -M * 3.1 -M *
KENDALL R.S. 7740 .3 1.1 27 2.1 2.1 100
LOOMIS PARK 8240 .5 1.5 33 2.5 2.4 104
NEW FORK LAKE 8340 .4 .9 44 2.2 2.0 110
SNIDER BASIN 8060 1.1 1.2 92 2.7 2.2 123
SPRING CREEK DIVIDE 9000 3.3 2.3 143 4.1 3.4 121
TRIPLE PEAK 8500 2.9 2.0 145 4.6 3.0 153
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Basin wide percent of average 109 115
LOWER GREEN RIVER
HAMS FORK 7840 .2 .7 29 3.1 1.8 172
HEWINTA 9519 -M 1.1 * 2.3 2.9 79
HICKERSON PARK 9145 1.7 .7 243 3.1 2.1 148
HOLE-IN-ROCK 9150 .9 .7 129 3.7 2.0 185
INDIAN CREEK 9425 4.4 2.4 183 4.9 3.4 144
KELLEY R.S. 8180 1.2 1.5 80 3.6 2.8 129
STEEL CREEK PARK 10200 1.6 2.1 76 3.0 3.0 100
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Basin wide percent of average 123 132
UPPER BEAR RIVER
BUG LAKE 7950 .1 1.7 6 3.4 3.0 113
HAYDEN FORK 9212 .1 1.2 8 2.9 3.1 94
KELLEY R.S. 8180 1.2 1.5 80 3.6 2.8 129
LILY LAKE 9156 .9 1.3 69 2.3 3.1 74
MONTE CRISTO 8960 1.8 2.2 82 3.8 3.6 106
SALT RIVER SUMMIT 7760 .0 .7 0 2.5 2.5 100
TRIAL LAKE 9992 2.4 2.6 92 2.9 3.5 83
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Basin wide percent of average 58 99
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-M = Missing data
* = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and
Total Precipitation values
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.