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 TUESDAY: NOVEMBER 10 , 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 .7 1.3 54 3.1 2.9 107
COTTONWOOD CREEK 7670 -M 1.7 * -M 4.2 *
GRAND TARGHEE 9260 6.5 -M * 6.0 -M *
GRANITE CREEK 6770 .0 1.0 0 2.6 2.6 100
GRASSY LAKE 7265 1.8 2.7 67 4.3 4.8 90
GROS VENTRE SUMMIT 8750 2.1 2.0 105 2.3 2.5 92
GUNSIGHT PASS 9820 1.7 -M * 3.1 -M *
LEWIS LAKE DIVIDE 7850 -M 2.6 * -M 4.6 *
PHILLIPS BENCH 8200 1.4 2.5 56 3.4 3.5 97
SALT RIVER SUMMIT 7760 .1 .8 12 2.5 2.7 93
SNAKE RIVER STATION 6920 .5 1.2 42 3.8 3.2 119
SPRING CREEK DIVIDE 9000 3.3 2.6 127 4.1 3.7 111
THUMB DIVIDE 7980 1.2 1.5 80 4.3 2.8 154
TOGWOTEE PASS 9580 4.2 3.7 114 4.4 3.9 113
TWO OCEAN PLATEAU 9240 5.5 4.4 125 4.2 4.3 98
WILLOW CREEK 8380 1.6 3.2 50 5.6 5.1 110
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Basin wide percent of average 83 106
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 4.2 3.9 108 3.5 3.0 117
BLACK BEAR 8170 4.7 4.2 112 6.1 5.2 117
CANYON 7870 1.6 1.3 123 3.2 2.6 123
FISHER CREEK 9100 5.7 4.3 133 6.2 4.8 129
MADISON PLATEAU 7750 2.4 2.5 96 5.3 3.5 151
NORTHEAST ENTRANCE 7350 .2 .8 25 3.0 2.1 143
PARKER PEAK 9400 4.9 3.7 132 3.9 3.1 126
SYLVAN LAKE 8420 1.7 3.1 55 3.5 3.6 97
THUMB DIVIDE 7980 1.2 1.5 80 4.3 2.8 154
TWO OCEAN PLATEAU 9240 5.5 4.4 125 4.2 4.3 98
WHISKEY CREEK 6800 .1 1.5 7 3.2 3.1 103
WHITE MILL 8700 4.6 3.2 144 4.4 3.8 116
WOLVERINE 7650 .0 1.1 0 2.4 2.5 96
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Basin wide percent of average 104 120
WIND RIVER
BURROUGHS CREEK 8750 3.0 1.7 176 2.9 2.4 121
COLD SPRINGS 9630 2.3 1.7 135 3.0 2.6 115
DEER PARK 9700 4.5 3.5 129 5.7 3.8 150
HOBBS PARK 10100 4.9 3.0 163 4.9 2.9 169
LITTLE WARM 9370 1.8 1.7 106 2.5 2.5 100
SOUTH PASS 9040 3.8 2.5 152 4.9 3.1 158
ST. LAWRENCE ALT 8620 1.8 1.4 129 3.8 2.3 165
TOGWOTEE PASS 9580 4.2 3.7 114 4.4 3.9 113
TOWNSEND CREEK 8700 3.2 1.6 200 4.9 2.8 175
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Basin wide percent of average 142 141
BIGHORN BASIN
BALD MTN. 9380 4.1 3.8 108 3.5 3.2 109
BEAR TRAP MEADOW 8200 1.2 .9 133 2.2 2.3 96
BLACKWATER 9780 5.5 4.2 131 4.7 3.7 127
BONE SPRINGS DIV 9350 3.3 3.6 92 3.2 3.2 100
EVENING STAR 9200 5.0 4.2 119 6.1 4.1 149
GRAVE SPRINGS 8550 2.5 1.7 147 3.7 2.5 148
KIRWIN 9550 3.2 2.6 123 2.6 2.5 104
MARQUETTE 8760 2.9 2.5 116 3.2 2.9 110
MIDDLE POWDER 7760 2.4 1.9 126 3.2 3.4 94
OWL CREEK 8975 2.4 1.2 200 2.0 1.5 133
POWDER RIVER PASS 9480 2.1 2.0 105 2.5 2.5 100
SHELL CREEK 9580 3.6 3.5 103 3.2 2.7 119
SYLVAN LAKE 8420 1.7 3.1 55 3.5 3.6 97
SYLVAN ROAD 7120 .7 1.2 58 3.0 3.1 97
TIMBER CREEK 7950 .9 1.5 60 2.5 2.1 119
YOUNTS PEAK 8350 2.8 2.3 122 2.4 2.7 89
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Basin wide percent of average 110 112
SHOSHONE RIVER
BLACKWATER 9780 5.5 4.2 131 4.7 3.7 127
EVENING STAR 9200 5.0 4.2 119 6.1 4.1 149
KIRWIN 9550 3.2 2.6 123 2.6 2.5 104
MARQUETTE 8760 2.9 2.5 116 3.2 2.9 110
SYLVAN LAKE 8420 1.7 3.1 55 3.5 3.6 97
SYLVAN ROAD 7120 .7 1.2 58 3.0 3.1 97
YOUNTS PEAK 8350 2.8 2.3 122 2.4 2.7 89
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Basin wide percent of average 108 113
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.2 .9 133 2.2 2.3 96
BIG GOOSE 7990 1.7 1.2 142 3.3 2.4 138
BONE SPRINGS DIV 9350 3.3 3.6 92 3.2 3.2 100
BURGESS JUNCTION 7880 2.9 2.3 126 3.8 2.8 136
CLOUD PEAK RESERVOIR 9860 3.5 2.3 152 3.5 3.4 103
DOME LAKE 8880 2.3 2.8 82 3.4 3.2 106
GRAVE SPRINGS 8550 2.5 1.7 147 3.7 2.5 148
HANSEN SAWMILL 8360 1.2 1.3 92 2.2 2.3 96
MIDDLE POWDER 7760 2.4 1.9 126 3.2 3.4 94
POWDER RIVER PASS 9480 2.1 2.0 105 2.5 2.5 100
SUCKER CREEK 8880 3.6 1.9 189 4.3 3.1 139
TIE CREEK 6870 .0 1.3 0 4.0 2.9 138
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Basin wide percent of average 115 116
BELLE FOURCHE
BLIND PARK 6890 1.0 1.3 77 4.1 3.2 128
COLE CANYON 5910 .0 1.3 0 4.1 2.2 186
NORTH RAPID CREEK 6130 1.0 .8 125 4.0 3.0 133
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Basin wide percent of average 59 145
UPPER N. PLATTE RIVER
COLUMBINE 9160 .8 1.8 44 3.9 3.3 118
DIVIDE PEAK 8880 2.4 2.6 92 5.4 3.6 150
ELK RIVER 8700 .0 1.1 0 3.2 3.0 107
JOE WRIGHT 10120 3.4 3.7 92 4.8 4.6 104
NORTH FRENCH CREEK 10130 7.0 4.4 159 7.3 4.5 162
OLD BATTLE 10000 7.3 4.5 162 7.7 5.0 154
SAGE CREEK BASIN 7850 1.2 1.5 80 2.8 2.1 133
SOUTH BRUSH CREEK 8440 .9 1.2 75 4.2 3.4 124
TOWER 10500 7.1 5.9 120 7.4 5.6 132
WEBBER SPRINGS 9250 3.2 3.1 103 6.2 4.3 144
WILLOW CREEK PASS 9540 .7 1.9 37 3.0 2.7 111
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Basin wide percent of average 107 133
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 4.7 3.1 152 5.7 3.5 163
CASPER MTN. 7900 3.0 2.5 120 3.9 3.4 115
DEADMAN HILL 10220 1.1 3.1 35 4.7 3.2 147
DEER PARK 9700 4.5 3.5 129 5.7 3.8 150
LAPRELE CREEK 8375 1.4 1.6 87 3.6 2.6 138
RENO HILL 8400 3.5 2.4 146 4.8 3.3 145
ROACH 9700 3.4 2.0 170 5.1 3.1 165
SAND LAKE 10050 7.6 4.8 158 7.9 4.2 188
SOUTH PASS 9040 3.8 2.5 152 4.9 3.1 158
WINDY PEAK 7900 1.4 1.0 140 3.7 2.3 161
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Basin wide percent of average 130 154
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .9 0 2.0 2.6 77
DIVIDE PEAK 8880 2.4 2.6 92 5.4 3.6 150
OLD BATTLE 10000 7.3 4.5 162 7.7 5.0 154
SANDSTONE RS 8150 .0 .9 0 2.5 3.2 78
WHISKEY PARK 8950 2.3 2.8 82 5.9 4.1 144
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Basin wide percent of average 103 127
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.9 1.9 153 3.2 2.5 128
BLIND BULL SUM 8650 2.6 2.9 90 2.4 3.2 75
EAST RIM DIVIDE 7930 .1 1.2 8 1.9 1.9 100
ELKHART PARK G.S. 9400 2.3 1.5 153 2.8 2.6 108
GROS VENTRE SUMMIT 8750 2.1 2.0 105 2.3 2.5 92
GUNSIGHT PASS 9820 1.7 -M * 3.1 -M *
KENDALL R.S. 7740 .2 1.2 17 2.0 2.2 91
LOOMIS PARK 8240 .4 1.7 24 2.5 2.6 96
NEW FORK LAKE 8340 .3 1.0 30 1.7 2.2 77
SNIDER BASIN 8060 1.1 1.4 79 2.7 2.3 117
SPRING CREEK DIVIDE 9000 3.3 2.6 127 4.1 3.7 111
TRIPLE PEAK 8500 3.7 2.3 161 4.5 3.2 141
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Basin wide percent of average 96 104
LOWER GREEN RIVER
HAMS FORK 7840 .2 .8 25 3.1 2.0 155
HEWINTA 9519 .3 1.2 25 2.1 3.1 68
HICKERSON PARK 9145 1.2 .7 171 3.4 2.2 155
HOLE-IN-ROCK 9150 1.1 .8 138 3.7 2.1 176
INDIAN CREEK 9425 4.4 2.7 163 4.9 3.7 132
KELLEY R.S. 8180 1.4 1.7 82 3.7 3.0 123
STEEL CREEK PARK 10200 1.5 2.2 68 3.1 3.2 97
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Basin wide percent of average 100 124
UPPER BEAR RIVER
BUG LAKE 7950 .0 1.9 0 3.4 3.2 106
HAYDEN FORK 9212 .2 1.4 14 2.9 3.4 85
KELLEY R.S. 8180 1.4 1.7 82 3.7 3.0 123
LILY LAKE 9156 1.0 1.4 71 2.3 3.3 70
MONTE CRISTO 8960 1.5 2.4 62 4.1 3.9 105
SALT RIVER SUMMIT 7760 .1 .8 12 2.5 2.7 93
TRIAL LAKE 9992 2.1 2.8 75 3.0 3.8 79
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Basin wide percent of average 51 94
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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.