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: JANUARY 8 , 2011
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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 10.5 9.2 114 13.4 11.5 117
COTTONWOOD CREEK 7670 14.7 10.8 136 19.2 14.9 129
GRAND TARGHEE 9260 25.5 -M * 18.8 -M *
GRANITE CREEK 6770 11.0 8.7 126 13.4 10.5 128
GRASSY LAKE 7265 17.4 16.6 105 20.8 19.3 108
GROS VENTRE SUMMIT 8750 8.9 7.6 117 8.9 6.9 129
GUNSIGHT PASS 9820 9.5 -M * 9.8 -M *
LEWIS LAKE DIVIDE 7850 19.3 16.6 116 20.9 19.4 108
PHILLIPS BENCH 8200 17.0 14.0 121 18.6 15.0 124
SALT RIVER SUMMIT 7760 8.5 6.2 137 12.5 9.9 126
SNAKE RIVER STATION 6920 8.0 8.8 91 14.6 12.1 121
SPRING CREEK DIVIDE 9000 16.6 13.6 122 17.4 14.5 120
THUMB DIVIDE 7980 12.2 8.5 144 12.6 10.0 126
TOGWOTEE PASS 9580 15.6 12.8 122 16.7 13.2 127
TWO OCEAN PLATEAU 9240 19.4 14.7 132 15.8 14.7 107
WILLOW CREEK 8380 16.6 15.7 106 22.0 17.1 129
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Basin wide percent of average 119 120
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 12.8 12.6 102 12.7 11.0 115
BLACK BEAR 8170 23.7 19.1 124 24.3 19.6 124
CANYON 7870 8.7 6.8 128 10.4 8.5 122
FISHER CREEK 9100 19.6 18.0 109 19.5 19.0 103
MADISON PLATEAU 7750 15.3 12.5 122 17.2 13.5 127
NORTHEAST ENTRANCE 7350 6.2 5.6 111 8.2 7.0 117
PARKER PEAK 9400 15.0 11.6 129 14.9 8.9 167
SYLVAN LAKE 8420 12.3 11.6 106 15.4 11.9 129
THUMB DIVIDE 7980 12.2 8.5 144 12.6 10.0 126
TWO OCEAN PLATEAU 9240 19.4 14.7 132 15.8 14.7 107
WHISKEY CREEK 6800 10.7 8.3 129 13.2 10.9 121
WHITE MILL 8700 13.5 12.3 110 14.7 14.1 104
WOLVERINE 7650 7.8 6.5 120 7.8 7.5 104
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Basin wide percent of average 120 119
WIND RIVER
BURROUGHS CREEK 8750 8.2 7.5 109 8.6 8.8 98
CASTLE CREEK 8400 3.7 -M * 4.4 -M *
COLD SPRINGS 9630 5.1 4.9 104 5.2 6.0 87
DEER PARK 9700 12.9 7.3 177 13.9 11.8 118
HOBBS PARK 10100 8.7 8.1 107 7.8 6.8 115
LITTLE WARM 9370 6.7 5.9 114 7.0 7.3 96
SOUTH PASS 9040 10.5 8.8 119 9.6 9.8 98
ST. LAWRENCE ALT 8620 3.4 4.0 85 4.3 4.8 90
TOGWOTEE PASS 9580 15.6 12.8 122 16.7 13.2 127
TOWNSEND CREEK 8700 4.9 4.7 104 6.8 6.3 108
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Basin wide percent of average 119 107
BIGHORN BASIN
BALD MTN. 9380 11.2 10.6 106 10.0 9.3 108
BEAR TRAP MEADOW 8200 3.6 2.8 129 4.9 4.7 104
BLACKWATER 9780 14.3 13.0 110 13.8 11.6 119
BONE SPRINGS DIV 9350 8.4 8.5 99 7.8 7.8 100
EVENING STAR 9200 16.5 15.1 109 18.0 14.2 127
GRAVE SPRINGS 8550 3.8 4.5 84 4.3 5.3 81
KIRWIN 9550 7.0 6.3 111 7.6 6.3 121
MARQUETTE 8760 1.8 5.1 35 4.1 5.5 75
MIDDLE POWDER 7760 5.3 5.8 91 3.6 7.2 50
OWL CREEK 8975 2.7 2.8 96 3.1 3.1 100
POWDER RIVER PASS 9480 6.6 5.7 116 7.7 6.5 118
SHELL CREEK 9580 7.6 7.9 96 6.4 7.2 89
SYLVAN LAKE 8420 12.3 11.6 106 15.4 11.9 129
SYLVAN ROAD 7120 8.1 6.8 119 11.3 10.9 104
TIMBER CREEK 7950 2.4 3.1 77 2.8 3.9 72
YOUNTS PEAK 8350 9.7 8.8 110 9.0 9.0 100
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Basin wide percent of average 102 104
SHOSHONE RIVER
BLACKWATER 9780 14.3 13.0 110 13.8 11.6 119
EVENING STAR 9200 16.5 15.1 109 18.0 14.2 127
KIRWIN 9550 7.0 6.3 111 7.6 6.3 121
MARQUETTE 8760 1.8 5.1 35 4.1 5.5 75
SYLVAN LAKE 8420 12.3 11.6 106 15.4 11.9 129
SYLVAN ROAD 7120 8.1 6.8 119 11.3 10.9 104
YOUNTS PEAK 8350 9.7 8.8 110 9.0 9.0 100
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Basin wide percent of average 104 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.6 2.8 129 4.9 4.7 104
BIG GOOSE 7990 3.2 4.8 67 4.8 4.7 102
BONE SPRINGS DIV 9350 8.4 8.5 99 7.8 7.8 100
BURGESS JUNCTION 7880 4.0 5.9 68 5.3 6.5 82
CLOUD PEAK RESERVOIR 9860 7.3 6.2 118 7.7 6.8 113
DOME LAKE 8880 4.2 6.4 66 6.2 7.3 85
GRAVE SPRINGS 8550 3.8 4.5 84 4.3 5.3 81
HANSEN SAWMILL 8360 3.4 3.4 100 3.7 4.5 82
LITTLE GOOSE 8870 3.8 -M * 7.5 -M *
MIDDLE POWDER 7760 5.3 5.8 91 3.6 7.2 50
POWDER RIVER PASS 9480 6.6 5.7 116 7.7 6.5 118
SOLDIER PARK 8720 3.0 -M * 4.4 -M *
SUCKER CREEK 8880 5.6 5.6 100 6.3 7.2 88
TIE CREEK 6870 2.5 2.9 86 4.4 5.5 80
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Basin wide percent of average 93 90
BELLE FOURCHE
BLIND PARK 6890 3.2 4.0 80 8.8 6.6 133
COLE CANYON 5910 3.7 3.6 103 6.0 4.1 146
NORTH RAPID CREEK 6130 3.8 3.7 103 7.6 5.5 138
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Basin wide percent of average 95 138
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 13.4 11.1 121 16.5 12.3 134
COLUMBINE 9160 16.0 11.4 140 19.1 12.8 149
DIVIDE PEAK 8880 12.0 10.1 119 15.7 11.0 143
ELK RIVER 8700 12.1 8.4 144 14.9 9.8 152
JOE WRIGHT 10120 14.3 10.6 135 19.8 12.9 153
NORTH FRENCH CREEK 10130 21.6 14.6 148 21.4 13.1 163
OLD BATTLE 10000 24.4 15.8 154 25.0 17.6 142
SAGE CREEK BASIN 7850 10.7 5.9 181 11.5 6.4 180
SOUTH BRUSH CREEK 8440 9.6 5.6 171 12.9 8.5 152
TOWER 10500 28.0 22.7 123 27.9 19.7 142
WEBBER SPRINGS 9250 16.4 12.5 131 21.2 14.3 148
WILLOW CREEK PASS 9540 10.7 6.0 178 10.8 6.9 157
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Basin wide percent of average 140 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.2 11.8 129 16.5 11.1 149
CASPER MTN. 7900 6.0 7.4 81 8.7 7.6 114
DEADMAN HILL 10220 5.2 8.3 63 13.4 8.5 158
DEER PARK 9700 12.9 7.3 177 13.9 11.8 118
LAPRELE CREEK 8375 5.9 5.8 102 7.2 6.6 109
RENO HILL 8400 7.4 7.0 106 9.3 7.7 121
ROACH 9700 11.4 8.1 141 14.4 9.3 155
SAND LAKE 10050 19.5 16.1 121 18.7 12.6 148
SOUTH PASS 9040 10.5 8.8 119 9.6 9.8 98
WINDY PEAK 7900 4.7 3.7 127 7.1 5.9 120
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Basin wide percent of average 117 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.7 4.9 116 9.0 7.8 115
DIVIDE PEAK 8880 12.0 10.1 119 15.7 11.0 143
OLD BATTLE 10000 24.4 15.8 154 25.0 17.6 142
SANDSTONE RS 8150 7.4 6.2 119 15.1 9.8 154
WHISKEY PARK 8950 -M 12.7 * 21.6 14.7 147
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Basin wide percent of average 134 142
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.5 7.5 113 9.1 7.1 128
BLIND BULL SUM 8650 14.7 14.4 102 11.3 12.2 93
EAST RIM DIVIDE 7930 7.2 6.5 111 7.1 6.3 113
ELKHART PARK G.S. 9400 6.9 6.9 100 7.5 7.3 103
GROS VENTRE SUMMIT 8750 8.9 7.6 117 8.9 6.9 129
GUNSIGHT PASS 9820 9.5 -M * 9.8 -M *
KENDALL R.S. 7740 6.9 7.4 93 8.6 7.6 113
LOOMIS PARK 8240 9.7 8.8 110 10.9 9.2 118
NEW FORK LAKE 8340 6.5 5.9 110 6.5 6.4 102
POCKET CREEK 9360 6.6 -M * 8.4 -M *
SNIDER BASIN 8060 10.4 7.5 139 11.0 8.8 125
SPRING CREEK DIVIDE 9000 16.6 13.6 122 17.4 14.5 120
TRIPLE PEAK 8500 14.8 13.0 114 16.9 12.4 136
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Basin wide percent of average 112 117
LOWER GREEN RIVER
HAMS FORK 7840 7.8 6.1 128 8.9 6.4 139
HEWINTA 9519 5.2 4.7 111 9.8 7.5 131
HICKERSON PARK 9145 3.3 3.2 103 5.2 4.4 118
HOLE-IN-ROCK 9150 3.9 3.0 130 5.5 4.1 134
INDIAN CREEK 9425 17.1 13.7 125 16.5 13.4 123
KELLEY R.S. 8180 11.3 8.3 136 14.2 11.1 128
STEEL CREEK PARK 10200 8.7 7.3 119 11.8 8.1 146
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Basin wide percent of average 124 131
UPPER BEAR RIVER
BUG LAKE 7950 15.7 9.4 167 17.5 10.1 173
HAYDEN FORK 9212 10.7 7.1 151 18.1 10.9 166
KELLEY R.S. 8180 11.3 8.3 136 14.2 11.1 128
LILY LAKE 9156 10.0 6.1 164 13.3 9.3 143
MONTE CRISTO 8960 18.3 12.6 145 21.2 13.2 161
SALT RIVER SUMMIT 7760 8.5 6.2 137 12.5 9.9 126
TRIAL LAKE 9992 21.1 11.6 182 22.4 12.3 182
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Basin wide percent of average 156 155
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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 1971-2000.
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.