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 FRIDAY: FEBRUARY 11 , 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 14.6 13.9 105 17.6 16.1 109
COTTONWOOD CREEK 7670 19.3 15.5 125 26.2 20.1 130
GRAND TARGHEE 9260 35.4 -M * 25.3 -M *
GRANITE CREEK 6770 14.3 13.7 104 16.7 15.0 111
GRASSY LAKE 7265 25.4 25.3 100 28.3 27.1 104
GROS VENTRE SUMMIT 8750 11.2 10.1 111 10.9 9.3 117
GUNSIGHT PASS 9820 12.5 -M * 12.7 -M *
LEWIS LAKE DIVIDE 7850 24.5 25.5 96 25.2 27.1 93
PHILLIPS BENCH 8200 21.8 20.4 107 23.0 21.3 108
SALT RIVER SUMMIT 7760 12.0 10.4 115 16.1 13.7 118
SNAKE RIVER STATION 6920 -M 14.0 * -M 16.9 *
SPRING CREEK DIVIDE 9000 25.2 19.0 133 25.0 19.7 127
THUMB DIVIDE 7980 13.9 13.0 107 14.3 13.8 104
TOGWOTEE PASS 9580 21.5 18.3 117 22.9 18.1 127
TWO OCEAN PLATEAU 9240 24.0 20.5 117 19.9 20.1 99
WILLOW CREEK 8380 24.1 22.0 110 29.3 23.5 125
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Basin wide percent of average 111 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 18.5 17.5 106 18.1 15.0 121
BLACK BEAR 8170 30.6 27.8 110 30.1 28.5 106
CANYON 7870 11.7 9.7 121 13.1 11.5 114
FISHER CREEK 9100 28.9 25.6 113 28.0 26.6 105
MADISON PLATEAU 7750 19.0 17.6 108 20.8 19.1 109
NORTHEAST ENTRANCE 7350 9.7 8.4 115 11.6 9.6 121
PARKER PEAK 9400 20.6 15.8 130 18.7 12.0 156
SYLVAN LAKE 8420 17.1 16.1 106 20.4 15.9 128
THUMB DIVIDE 7980 13.9 13.0 107 14.3 13.8 104
TWO OCEAN PLATEAU 9240 24.0 20.5 117 19.9 20.1 99
WHISKEY CREEK 6800 13.3 12.1 110 16.2 15.0 108
WHITE MILL 8700 20.0 17.3 116 20.6 19.8 104
WOLVERINE 7650 12.1 9.3 130 10.9 9.9 110
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Basin wide percent of average 114 112
WIND RIVER
BURROUGHS CREEK 8750 10.7 10.8 99 11.2 12.1 93
CASTLE CREEK 8400 4.6 -M * 5.3 -M *
COLD SPRINGS 9630 6.2 6.3 98 6.3 7.5 84
DEER PARK 9700 14.5 13.1 111 15.6 15.8 99
HOBBS PARK 10100 9.8 10.3 95 8.9 8.8 101
LITTLE WARM 9370 8.6 8.3 104 8.7 9.7 90
SOUTH PASS 9040 12.0 12.0 100 10.4 13.3 78
ST. LAWRENCE ALT 8620 4.2 5.1 82 5.0 6.2 81
TOGWOTEE PASS 9580 21.5 18.3 117 22.9 18.1 127
TOWNSEND CREEK 8700 -M 6.0 * -M 7.8 *
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Basin wide percent of average 104 97
BIGHORN BASIN
BALD MTN. 9380 17.6 14.2 124 14.1 12.6 112
BEAR TRAP MEADOW 8200 5.9 3.8 155 6.2 5.8 107
BLACKWATER 9780 19.0 17.6 108 18.3 15.2 120
BONE SPRINGS DIV 9350 13.9 11.3 123 11.6 10.3 113
EVENING STAR 9200 23.2 21.5 108 25.5 19.0 134
GRAVE SPRINGS 8550 5.9 6.3 94 6.2 6.8 91
KIRWIN 9550 8.3 8.1 102 9.0 8.1 111
MARQUETTE 8760 2.2 6.2 35 4.9 6.6 74
MIDDLE POWDER 7760 7.1 7.9 90 8.8 8.7 101
OWL CREEK 8975 3.8 3.6 106 3.8 3.9 97
POWDER RIVER PASS 9480 10.6 7.7 138 12.3 8.9 138
SHELL CREEK 9580 12.4 10.5 118 11.1 9.9 112
SYLVAN LAKE 8420 17.1 16.1 106 20.4 15.9 128
SYLVAN ROAD 7120 11.5 9.6 120 15.3 14.2 108
TIMBER CREEK 7950 2.9 3.9 74 3.4 4.8 71
YOUNTS PEAK 8350 12.4 12.8 97 11.0 12.1 91
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Basin wide percent of average 108 112
SHOSHONE RIVER
BLACKWATER 9780 19.0 17.6 108 18.3 15.2 120
EVENING STAR 9200 23.2 21.5 108 25.5 19.0 134
KIRWIN 9550 8.3 8.1 102 9.0 8.1 111
MARQUETTE 8760 2.2 6.2 35 4.9 6.6 74
SYLVAN LAKE 8420 17.1 16.1 106 20.4 15.9 128
SYLVAN ROAD 7120 11.5 9.6 120 15.3 14.2 108
YOUNTS PEAK 8350 12.4 12.8 97 11.0 12.1 91
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Basin wide percent of average 102 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.9 3.8 155 6.2 5.8 107
BIG GOOSE 7990 5.7 6.5 88 7.3 6.1 120
BONE SPRINGS DIV 9350 13.9 11.3 123 11.6 10.3 113
BURGESS JUNCTION 7880 7.8 7.9 99 8.8 8.4 105
CLOUD PEAK RESERVOIR 9860 11.1 8.6 129 10.8 8.7 124
DOME LAKE 8880 8.2 8.6 95 9.5 9.2 103
GRAVE SPRINGS 8550 5.9 6.3 94 6.2 6.8 91
HANSEN SAWMILL 8360 4.7 4.5 104 5.0 5.6 89
LITTLE GOOSE 8870 6.5 -M * 10.4 -M *
MIDDLE POWDER 7760 7.1 7.9 90 8.8 8.7 101
POWDER RIVER PASS 9480 10.6 7.7 138 12.3 8.9 138
SOLDIER PARK 8720 4.8 -M * 6.2 -M *
SUCKER CREEK 8880 9.7 7.8 124 10.7 9.4 114
TIE CREEK 6870 5.3 4.3 123 7.5 7.1 106
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Basin wide percent of average 113 110
BELLE FOURCHE
BLIND PARK 6890 7.8 5.7 137 13.4 8.3 161
COLE CANYON 5910 6.5 4.9 133 9.5 5.0 190
NORTH RAPID CREEK 6130 7.4 5.6 132 11.4 6.7 170
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Basin wide percent of average 134 172
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 20.4 14.3 143 21.5 15.4 140
COLUMBINE 9160 24.9 18.5 135 24.2 18.0 134
DIVIDE PEAK 8880 15.7 13.8 114 19.6 14.8 132
ELK RIVER 8700 18.3 13.7 134 20.2 13.8 146
JOE WRIGHT 10120 21.4 15.1 142 25.2 17.5 144
NORTH FRENCH CREEK 10130 33.4 19.8 169 -M 17.6 *
OLD BATTLE 10000 30.9 22.1 140 26.8 24.4 110
SAGE CREEK BASIN 7850 14.9 8.0 186 13.8 8.6 160
SOUTH BRUSH CREEK 8440 13.4 8.2 163 16.5 11.7 141
TOWER 10500 40.8 32.8 124 35.4 27.6 128
WEBBER SPRINGS 9250 21.9 17.7 124 26.7 19.4 138
WILLOW CREEK PASS 9540 13.6 8.2 166 13.1 9.0 146
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Basin wide percent of average 140 135
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 22.5 16.6 136 23.3 15.3 152
CASPER MTN. 7900 8.7 9.8 89 11.2 9.6 117
DEADMAN HILL 10220 14.9 11.4 131 16.7 11.5 145
DEER PARK 9700 14.5 13.1 111 15.6 15.8 99
LAPRELE CREEK 8375 9.3 7.8 119 10.6 8.7 122
RENO HILL 8400 10.9 9.0 121 12.7 10.0 127
ROACH 9700 15.7 12.1 130 18.9 12.6 150
SAND LAKE 10050 27.2 21.6 126 25.6 17.0 151
SOUTH PASS 9040 12.0 12.0 100 10.4 13.3 78
WINDY PEAK 7900 7.5 5.1 147 9.9 7.4 134
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Basin wide percent of average 121 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M 8.5 * 11.0 10.7 103
DIVIDE PEAK 8880 15.7 13.8 114 19.6 14.8 132
OLD BATTLE 10000 30.9 22.1 140 26.8 24.4 110
SANDSTONE RS 8150 10.8 10.7 101 -M 13.6 *
WHISKEY PARK 8950 -M 20.4 * 28.9 20.8 139
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Basin wide percent of average 123 122
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.9 10.4 95 10.3 9.8 105
BLIND BULL SUM 8650 21.4 20.0 107 15.4 16.6 93
EAST RIM DIVIDE 7930 10.9 9.4 116 9.4 8.8 107
ELKHART PARK G.S. 9400 9.2 9.6 96 9.2 9.5 97
GROS VENTRE SUMMIT 8750 11.2 10.1 111 10.9 9.3 117
GUNSIGHT PASS 9820 12.5 -M * 12.7 -M *
KENDALL R.S. 7740 9.1 10.7 85 10.8 10.7 101
LOOMIS PARK 8240 13.7 12.3 111 14.8 12.8 116
NEW FORK LAKE 8340 9.0 8.3 108 8.5 8.4 101
POCKET CREEK 9360 7.4 -M * 10.1 -M *
SNIDER BASIN 8060 14.8 10.7 138 14.7 12.0 123
SPRING CREEK DIVIDE 9000 25.2 19.0 133 25.0 19.7 127
TRIPLE PEAK 8500 22.7 18.1 125 24.3 17.6 138
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Basin wide percent of average 113 113
LOWER GREEN RIVER
HAMS FORK 7840 11.7 9.2 127 11.8 9.1 130
HEWINTA 9519 9.1 7.5 121 12.6 10.0 126
HICKERSON PARK 9145 5.2 4.9 106 6.9 5.5 125
HOLE-IN-ROCK 9150 5.9 4.7 126 7.5 5.1 147
INDIAN CREEK 9425 22.7 19.1 119 20.9 18.2 115
KELLEY R.S. 8180 15.0 11.8 127 17.7 15.0 118
STEEL CREEK PARK 10200 12.3 10.5 117 15.3 11.1 138
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Basin wide percent of average 121 125
UPPER BEAR RIVER
BUG LAKE 7950 20.1 14.6 138 20.5 14.0 146
HAYDEN FORK 9212 16.2 10.9 149 22.7 14.7 154
KELLEY R.S. 8180 15.0 11.8 127 17.7 15.0 118
LILY LAKE 9156 14.0 9.1 154 16.5 12.4 133
MONTE CRISTO 8960 24.3 20.5 119 25.0 18.2 137
SALT RIVER SUMMIT 7760 12.0 10.4 115 16.1 13.7 118
TRIAL LAKE 9992 25.6 17.4 147 26.3 17.3 152
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Basin wide percent of average 134 138
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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.