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 THURSDAY: FEBRUARY 10 , 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 14.5 13.8 105 17.6 16.0 110
COTTONWOOD CREEK 7670 19.3 15.4 125 26.2 19.9 132
GRAND TARGHEE 9260 35.4 -M * 25.1 -M *
GRANITE CREEK 6770 14.2 13.6 104 16.7 14.9 112
GRASSY LAKE 7265 25.3 25.1 101 28.0 26.9 104
GROS VENTRE SUMMIT 8750 11.2 10.0 112 10.8 9.2 117
GUNSIGHT PASS 9820 12.4 -M * 12.6 -M *
LEWIS LAKE DIVIDE 7850 24.6 25.2 98 25.1 26.9 93
PHILLIPS BENCH 8200 21.8 20.2 108 22.9 21.1 109
SALT RIVER SUMMIT 7760 11.9 10.3 116 16.0 13.6 118
SNAKE RIVER STATION 6920 -M 13.9 * -M 16.8 *
SPRING CREEK DIVIDE 9000 25.3 18.8 135 24.9 19.6 127
THUMB DIVIDE 7980 13.8 12.9 107 14.1 13.7 103
TOGWOTEE PASS 9580 21.4 18.2 118 22.8 18.0 127
TWO OCEAN PLATEAU 9240 23.9 20.4 117 19.8 19.9 99
WILLOW CREEK 8380 24.1 21.8 111 29.2 23.3 125
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Basin wide percent of average 111 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 18.5 17.3 107 18.1 14.9 121
BLACK BEAR 8170 30.5 27.5 111 30.0 28.3 106
CANYON 7870 11.7 9.6 122 13.0 11.5 113
FISHER CREEK 9100 28.7 25.4 113 27.9 26.4 106
MADISON PLATEAU 7750 19.0 17.5 109 20.7 18.9 110
NORTHEAST ENTRANCE 7350 9.7 8.4 115 11.6 9.5 122
PARKER PEAK 9400 20.6 15.7 131 18.7 11.9 157
SYLVAN LAKE 8420 17.0 16.0 106 20.3 15.8 128
THUMB DIVIDE 7980 13.8 12.9 107 14.1 13.7 103
TWO OCEAN PLATEAU 9240 23.9 20.4 117 19.8 19.9 99
WHISKEY CREEK 6800 13.2 12.0 110 16.2 14.8 109
WHITE MILL 8700 20.0 17.2 116 20.4 19.6 104
WOLVERINE 7650 12.1 9.2 132 10.8 9.8 110
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Basin wide percent of average 114 112
WIND RIVER
BURROUGHS CREEK 8750 10.7 10.8 99 11.2 12.0 93
CASTLE CREEK 8400 4.6 -M * 5.3 -M *
COLD SPRINGS 9630 6.1 6.2 98 6.3 7.5 84
DEER PARK 9700 14.5 12.8 113 15.6 15.7 99
HOBBS PARK 10100 9.8 10.3 95 8.9 8.7 102
LITTLE WARM 9370 8.5 8.2 104 8.7 9.6 91
SOUTH PASS 9040 12.0 12.0 100 10.7 13.2 81
ST. LAWRENCE ALT 8620 4.2 5.0 84 5.0 6.1 82
TOGWOTEE PASS 9580 21.4 18.2 118 22.8 18.0 127
TOWNSEND CREEK 8700 -M 6.0 * -M 7.8 *
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Basin wide percent of average 104 98
BIGHORN BASIN
BALD MTN. 9380 17.3 14.1 123 13.9 12.5 111
BEAR TRAP MEADOW 8200 5.8 3.7 157 6.4 5.8 110
BLACKWATER 9780 18.9 17.5 108 18.2 15.1 121
BONE SPRINGS DIV 9350 13.8 11.2 123 11.6 10.2 114
EVENING STAR 9200 23.2 21.3 109 25.4 18.9 134
GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.7 93
KIRWIN 9550 8.3 8.0 104 9.1 8.1 112
MARQUETTE 8760 2.1 6.1 34 4.9 6.6 74
MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.7 100
OWL CREEK 8975 3.8 3.6 106 3.8 3.9 97
POWDER RIVER PASS 9480 10.5 7.6 138 12.3 8.8 140
SHELL CREEK 9580 12.3 10.4 118 11.1 9.8 113
SYLVAN LAKE 8420 17.0 16.0 106 20.3 15.8 128
SYLVAN ROAD 7120 11.5 9.6 120 15.3 14.1 109
TIMBER CREEK 7950 2.8 3.8 74 3.4 4.8 71
YOUNTS PEAK 8350 12.4 12.7 98 11.0 12.1 91
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Basin wide percent of average 108 112
SHOSHONE RIVER
BLACKWATER 9780 18.9 17.5 108 18.2 15.1 121
EVENING STAR 9200 23.2 21.3 109 25.4 18.9 134
KIRWIN 9550 8.3 8.0 104 9.1 8.1 112
MARQUETTE 8760 2.1 6.1 34 4.9 6.6 74
SYLVAN LAKE 8420 17.0 16.0 106 20.3 15.8 128
SYLVAN ROAD 7120 11.5 9.6 120 15.3 14.1 109
YOUNTS PEAK 8350 12.4 12.7 98 11.0 12.1 91
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Basin wide percent of average 102 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.8 3.7 157 6.4 5.8 110
BIG GOOSE 7990 5.6 6.5 86 7.1 6.1 116
BONE SPRINGS DIV 9350 13.8 11.2 123 11.6 10.2 114
BURGESS JUNCTION 7880 7.8 7.8 100 8.6 8.4 102
CLOUD PEAK RESERVOIR 9860 11.0 8.6 128 10.8 8.7 124
DOME LAKE 8880 8.1 8.5 95 9.4 9.2 102
GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.7 93
HANSEN SAWMILL 8360 4.7 4.4 107 5.0 5.6 89
LITTLE GOOSE 8870 6.5 -M * 10.4 -M *
MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.7 100
POWDER RIVER PASS 9480 10.5 7.6 138 12.3 8.8 140
SOLDIER PARK 8720 4.8 -M * 6.2 -M *
SUCKER CREEK 8880 9.6 7.8 123 10.5 9.3 113
TIE CREEK 6870 5.1 4.3 119 7.3 7.1 103
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Basin wide percent of average 113 110
BELLE FOURCHE
BLIND PARK 6890 7.7 5.7 135 13.4 8.2 163
COLE CANYON 5910 6.5 4.9 133 9.4 5.0 188
NORTH RAPID CREEK 6130 7.3 5.6 130 11.4 6.7 170
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Basin wide percent of average 133 172
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 20.2 14.1 143 21.3 15.3 139
COLUMBINE 9160 24.8 18.3 136 24.1 17.9 135
DIVIDE PEAK 8880 15.6 13.7 114 19.3 14.7 131
ELK RIVER 8700 18.2 13.5 135 20.1 13.7 147
JOE WRIGHT 10120 21.3 15.0 142 25.1 17.4 144
NORTH FRENCH CREEK 10130 33.3 19.6 170 -M 17.5 *
OLD BATTLE 10000 31.3 21.9 143 26.7 24.2 110
SAGE CREEK BASIN 7850 14.8 7.9 187 13.8 8.5 162
SOUTH BRUSH CREEK 8440 13.4 8.1 165 16.5 11.7 141
TOWER 10500 41.0 32.5 126 35.4 27.4 129
WEBBER SPRINGS 9250 21.9 17.6 124 26.6 19.2 139
WILLOW CREEK PASS 9540 13.5 8.2 165 13.1 8.9 147
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Basin wide percent of average 141 135
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 22.3 16.5 135 23.1 15.2 152
CASPER MTN. 7900 8.7 9.7 90 11.2 9.5 118
DEADMAN HILL 10220 14.7 11.3 130 16.6 11.4 146
DEER PARK 9700 14.5 12.8 113 15.6 15.7 99
LAPRELE CREEK 8375 9.2 7.7 119 10.5 8.7 121
RENO HILL 8400 10.9 8.9 122 12.5 10.0 125
ROACH 9700 15.7 12.0 131 18.8 12.5 150
SAND LAKE 10050 27.1 21.4 127 25.4 16.9 150
SOUTH PASS 9040 12.0 12.0 100 10.7 13.2 81
WINDY PEAK 7900 7.5 5.0 150 9.9 7.4 134
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Basin wide percent of average 122 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M 8.4 * 11.0 10.6 104
DIVIDE PEAK 8880 15.6 13.7 114 19.3 14.7 131
OLD BATTLE 10000 31.3 21.9 143 26.7 24.2 110
SANDSTONE RS 8150 10.7 10.6 101 -M 13.5 *
WHISKEY PARK 8950 -M 20.2 * 28.7 20.6 139
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Basin wide percent of average 125 122
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.9 10.3 96 10.4 9.7 107
BLIND BULL SUM 8650 21.5 19.8 109 15.4 16.5 93
EAST RIM DIVIDE 7930 10.7 9.3 115 -M 8.7 *
ELKHART PARK G.S. 9400 9.0 9.5 95 9.1 9.5 96
GROS VENTRE SUMMIT 8750 11.2 10.0 112 10.8 9.2 117
GUNSIGHT PASS 9820 12.4 -M * 12.6 -M *
KENDALL R.S. 7740 9.0 10.6 85 10.8 10.6 102
LOOMIS PARK 8240 13.7 12.2 112 14.8 12.7 117
NEW FORK LAKE 8340 9.0 8.3 108 8.4 8.4 100
POCKET CREEK 9360 7.4 -M * 10.0 -M *
SNIDER BASIN 8060 14.7 10.6 139 14.7 11.9 124
SPRING CREEK DIVIDE 9000 25.3 18.8 135 24.9 19.6 127
TRIPLE PEAK 8500 22.7 17.9 127 23.9 17.5 137
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Basin wide percent of average 114 114
LOWER GREEN RIVER
HAMS FORK 7840 11.8 9.2 128 11.7 9.0 130
HEWINTA 9519 9.0 7.4 122 12.6 10.0 126
HICKERSON PARK 9145 4.9 4.9 100 6.6 5.5 120
HOLE-IN-ROCK 9150 5.8 4.6 126 7.4 5.1 145
INDIAN CREEK 9425 22.8 19.0 120 20.9 18.1 115
KELLEY R.S. 8180 15.0 11.6 129 17.6 14.9 118
STEEL CREEK PARK 10200 12.3 10.4 118 15.3 11.0 139
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Basin wide percent of average 122 125
UPPER BEAR RIVER
BUG LAKE 7950 20.1 14.4 140 20.4 13.9 147
HAYDEN FORK 9212 16.2 10.8 150 22.5 14.6 154
KELLEY R.S. 8180 15.0 11.6 129 17.6 14.9 118
LILY LAKE 9156 13.9 9.0 154 16.5 12.3 134
MONTE CRISTO 8960 24.4 20.3 120 24.9 18.0 138
SALT RIVER SUMMIT 7760 11.9 10.3 116 16.0 13.6 118
TRIAL LAKE 9992 25.7 17.2 149 26.3 17.2 153
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Basin wide percent of average 136 138
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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.