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 WEDNESDAY: FEBRUARY 9 , 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 14.4 13.7 105 17.6 15.9 111
COTTONWOOD CREEK 7670 19.1 15.3 125 24.9 19.8 126
GRAND TARGHEE 9260 35.2 -M * 24.9 -M *
GRANITE CREEK 6770 14.2 13.4 106 16.7 14.8 113
GRASSY LAKE 7265 25.2 24.9 101 27.9 26.7 104
GROS VENTRE SUMMIT 8750 11.1 10.0 111 10.7 9.2 116
GUNSIGHT PASS 9820 12.4 -M * 12.5 -M *
LEWIS LAKE DIVIDE 7850 24.5 25.0 98 24.8 26.6 93
PHILLIPS BENCH 8200 21.8 20.0 109 22.9 20.9 110
SALT RIVER SUMMIT 7760 11.8 10.1 117 15.9 13.5 118
SNAKE RIVER STATION 6920 -M 13.8 * -M 16.7 *
SPRING CREEK DIVIDE 9000 25.2 18.7 135 24.4 19.4 126
THUMB DIVIDE 7980 13.5 12.7 106 13.9 13.6 102
TOGWOTEE PASS 9580 21.3 18.0 118 22.7 17.9 127
TWO OCEAN PLATEAU 9240 23.8 20.2 118 19.6 19.8 99
WILLOW CREEK 8380 24.0 21.7 111 29.1 23.2 125
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Basin wide percent of average 112 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 18.6 17.1 109 18.2 14.8 123
BLACK BEAR 8170 30.5 27.2 112 30.0 28.0 107
CANYON 7870 11.7 9.5 123 12.9 11.4 113
FISHER CREEK 9100 28.6 25.2 113 27.9 26.2 106
MADISON PLATEAU 7750 19.0 17.2 110 20.7 18.7 111
NORTHEAST ENTRANCE 7350 9.7 8.2 118 11.6 9.4 123
PARKER PEAK 9400 20.6 15.5 133 18.7 11.8 158
SYLVAN LAKE 8420 16.9 15.9 106 20.3 15.7 129
THUMB DIVIDE 7980 13.5 12.7 106 13.9 13.6 102
TWO OCEAN PLATEAU 9240 23.8 20.2 118 19.6 19.8 99
WHISKEY CREEK 6800 13.3 11.9 112 16.1 14.7 110
WHITE MILL 8700 20.0 17.0 118 20.6 19.5 106
WOLVERINE 7650 12.1 9.1 133 10.8 9.7 111
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Basin wide percent of average 115 113
WIND RIVER
BURROUGHS CREEK 8750 10.7 10.6 101 11.2 11.9 94
CASTLE CREEK 8400 4.6 -M * 5.3 -M *
COLD SPRINGS 9630 6.2 6.2 100 6.3 7.4 85
DEER PARK 9700 14.5 12.3 118 15.5 15.6 99
HOBBS PARK 10100 9.8 10.2 96 8.9 8.7 102
LITTLE WARM 9370 8.5 8.1 105 8.7 9.6 91
SOUTH PASS 9040 12.0 11.9 101 10.4 13.1 79
ST. LAWRENCE ALT 8620 4.2 5.0 84 5.0 6.1 82
TOGWOTEE PASS 9580 21.3 18.0 118 22.7 17.9 127
TOWNSEND CREEK 8700 -M 5.9 * -M 7.7 *
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Basin wide percent of average 106 98
BIGHORN BASIN
BALD MTN. 9380 17.3 14.0 124 13.9 12.4 112
BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.8 110
BLACKWATER 9780 18.9 17.4 109 18.2 15.0 121
BONE SPRINGS DIV 9350 13.8 11.1 124 11.7 10.1 116
EVENING STAR 9200 23.3 21.0 111 25.6 18.7 137
GRAVE SPRINGS 8550 5.9 6.1 97 6.2 6.7 93
KIRWIN 9550 8.3 8.0 104 9.1 8.0 114
MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77
MIDDLE POWDER 7760 7.1 7.7 92 8.7 8.6 101
OWL CREEK 8975 3.9 3.5 111 3.8 3.9 97
POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.8 140
SHELL CREEK 9580 12.3 10.3 119 11.1 9.8 113
SYLVAN LAKE 8420 16.9 15.9 106 20.3 15.7 129
SYLVAN ROAD 7120 11.5 9.5 121 15.3 14.0 109
TIMBER CREEK 7950 2.8 3.7 76 3.4 4.7 72
YOUNTS PEAK 8350 12.3 12.6 98 11.0 12.0 92
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Basin wide percent of average 109 113
SHOSHONE RIVER
BLACKWATER 9780 18.9 17.4 109 18.2 15.0 121
EVENING STAR 9200 23.3 21.0 111 25.6 18.7 137
KIRWIN 9550 8.3 8.0 104 9.1 8.0 114
MARQUETTE 8760 2.2 6.1 36 5.0 6.5 77
SYLVAN LAKE 8420 16.9 15.9 106 20.3 15.7 129
SYLVAN ROAD 7120 11.5 9.5 121 15.3 14.0 109
YOUNTS PEAK 8350 12.3 12.6 98 11.0 12.0 92
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Basin wide percent of average 103 116
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.7 3.7 154 6.4 5.8 110
BIG GOOSE 7990 5.5 6.4 86 7.1 6.0 118
BONE SPRINGS DIV 9350 13.8 11.1 124 11.7 10.1 116
BURGESS JUNCTION 7880 7.8 7.7 101 8.7 8.3 105
CLOUD PEAK RESERVOIR 9860 11.0 8.5 129 10.8 8.6 126
DOME LAKE 8880 8.1 8.4 96 9.4 9.1 103
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 8.6 101
POWDER RIVER PASS 9480 10.5 7.5 140 12.3 8.8 140
SOLDIER PARK 8720 4.8 -M * 6.2 -M *
SUCKER CREEK 8880 9.6 7.7 125 10.5 9.2 114
TIE CREEK 6870 5.1 4.2 121 7.2 7.1 101
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Basin wide percent of average 114 111
BELLE FOURCHE
BLIND PARK 6890 7.7 5.7 135 13.4 8.2 163
COLE CANYON 5910 6.6 4.8 138 9.5 4.9 194
NORTH RAPID CREEK 6130 7.3 5.5 133 11.4 6.6 173
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Basin wide percent of average 135 174
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 20.2 14.0 144 21.3 15.2 140
COLUMBINE 9160 24.6 18.1 136 24.0 17.8 135
DIVIDE PEAK 8880 15.6 13.7 114 19.5 14.6 134
ELK RIVER 8700 18.2 13.4 136 20.0 13.6 147
JOE WRIGHT 10120 21.2 14.9 142 25.0 17.2 145
NORTH FRENCH CREEK 10130 33.2 19.5 170 -M 17.4 *
OLD BATTLE 10000 30.8 21.7 142 26.7 24.0 111
SAGE CREEK BASIN 7850 14.7 7.9 186 13.7 8.4 163
SOUTH BRUSH CREEK 8440 13.3 8.0 166 16.5 11.6 142
TOWER 10500 40.7 32.3 126 35.4 27.2 130
WEBBER SPRINGS 9250 21.7 17.4 125 26.6 19.1 139
WILLOW CREEK PASS 9540 13.6 8.1 168 13.1 8.9 147
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Basin wide percent of average 142 136
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 22.2 16.4 135 23.1 15.1 153
CASPER MTN. 7900 8.6 9.6 90 11.2 9.5 118
DEADMAN HILL 10220 14.6 11.2 130 16.6 11.3 147
DEER PARK 9700 14.5 12.3 118 15.5 15.6 99
LAPRELE CREEK 8375 9.1 7.7 118 10.4 8.6 121
RENO HILL 8400 10.8 8.9 121 12.4 9.9 125
ROACH 9700 15.6 11.9 131 18.6 12.4 150
SAND LAKE 10050 26.9 21.2 127 25.2 16.8 150
SOUTH PASS 9040 12.0 11.9 101 10.4 13.1 79
WINDY PEAK 7900 7.4 5.0 148 9.9 7.3 136
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Basin wide percent of average 122 128
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M 8.4 * 11.5 10.5 110
DIVIDE PEAK 8880 15.6 13.7 114 19.5 14.6 134
OLD BATTLE 10000 30.8 21.7 142 26.7 24.0 111
SANDSTONE RS 8150 -M 10.5 * -M 13.4 *
WHISKEY PARK 8950 -M 20.1 * 28.4 20.5 139
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Basin wide percent of average 131* 124
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.8 10.2 96 10.3 9.6 107
BLIND BULL SUM 8650 21.3 19.6 109 15.4 16.4 94
EAST RIM DIVIDE 7930 10.5 9.2 114 -M 8.6 *
ELKHART PARK G.S. 9400 9.0 9.4 96 9.1 9.4 97
GROS VENTRE SUMMIT 8750 11.1 10.0 111 10.7 9.2 116
GUNSIGHT PASS 9820 12.4 -M * 12.5 -M *
KENDALL R.S. 7740 9.0 10.5 86 10.8 10.5 103
LOOMIS PARK 8240 13.7 12.1 113 14.8 12.6 117
NEW FORK LAKE 8340 9.0 8.2 110 8.4 8.3 101
POCKET CREEK 9360 7.4 -M * 10.0 -M *
SNIDER BASIN 8060 14.7 10.5 140 14.7 11.8 125
SPRING CREEK DIVIDE 9000 25.2 18.7 135 24.4 19.4 126
TRIPLE PEAK 8500 22.6 17.8 127 23.9 17.3 138
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Basin wide percent of average 114 114
LOWER GREEN RIVER
HAMS FORK 7840 11.6 9.1 127 11.7 8.9 131
HEWINTA 9519 9.0 7.3 123 12.5 9.9 126
HICKERSON PARK 9145 4.8 4.8 100 6.5 5.5 118
HOLE-IN-ROCK 9150 5.8 4.6 126 7.4 5.0 148
INDIAN CREEK 9425 22.5 18.8 120 20.7 17.9 116
KELLEY R.S. 8180 14.9 11.5 130 17.4 14.8 118
STEEL CREEK PARK 10200 12.2 10.3 118 15.3 10.9 140
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Basin wide percent of average 122 126
UPPER BEAR RIVER
BUG LAKE 7950 20.0 14.3 140 20.2 13.8 146
HAYDEN FORK 9212 16.1 10.7 150 22.4 14.5 154
KELLEY R.S. 8180 14.9 11.5 130 17.4 14.8 118
LILY LAKE 9156 13.7 8.9 154 16.5 12.2 135
MONTE CRISTO 8960 24.1 20.0 121 24.9 17.9 139
SALT RIVER SUMMIT 7760 11.8 10.1 117 15.9 13.5 118
TRIAL LAKE 9992 25.5 17.0 150 26.2 17.0 154
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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.