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 4 , 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 13.9 13.1 106 17.0 15.2 112
COTTONWOOD CREEK 7670 18.2 14.6 125 24.2 19.1 127
GRAND TARGHEE 9260 33.7 -M * 24.6 -M *
GRANITE CREEK 6770 13.6 12.8 106 16.0 14.1 113
GRASSY LAKE 7265 24.4 23.7 103 27.1 25.7 105
GROS VENTRE SUMMIT 8750 10.3 9.7 106 10.2 8.8 116
GUNSIGHT PASS 9820 11.6 -M * 11.9 -M *
LEWIS LAKE DIVIDE 7850 23.9 23.8 100 24.4 25.5 96
PHILLIPS BENCH 8200 20.8 19.1 109 22.0 20.0 110
SALT RIVER SUMMIT 7760 11.2 9.6 117 15.5 12.9 120
SNAKE RIVER STATION 6920 -M 13.1 * -M 16.0 *
SPRING CREEK DIVIDE 9000 24.0 17.9 134 23.5 18.7 126
THUMB DIVIDE 7980 13.7 12.1 113 13.9 13.0 107
TOGWOTEE PASS 9580 20.0 17.3 116 21.4 17.2 124
TWO OCEAN PLATEAU 9240 23.0 19.4 119 19.1 18.9 101
WILLOW CREEK 8380 22.9 20.8 110 28.1 22.3 126
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Basin wide percent of average 112 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.3 16.5 105 16.9 14.3 118
BLACK BEAR 8170 29.2 26.1 112 29.0 26.8 108
CANYON 7870 11.0 9.1 121 12.4 11.0 113
FISHER CREEK 9100 26.4 24.2 109 25.7 25.2 102
MADISON PLATEAU 7750 18.4 16.5 112 20.2 18.0 112
NORTHEAST ENTRANCE 7350 8.8 7.9 111 10.7 9.1 118
PARKER PEAK 9400 19.6 15.1 130 17.9 11.4 157
SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.1 128
THUMB DIVIDE 7980 13.7 12.1 113 13.9 13.0 107
TWO OCEAN PLATEAU 9240 23.0 19.4 119 19.1 18.9 101
WHISKEY CREEK 6800 13.0 11.3 115 15.7 14.1 111
WHITE MILL 8700 18.3 16.4 112 19.1 18.7 102
WOLVERINE 7650 11.3 8.8 128 10.4 9.4 111
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Basin wide percent of average 114 112
WIND RIVER
BURROUGHS CREEK 8750 10.1 10.3 98 10.6 11.5 92
CASTLE CREEK 8400 4.4 -M * 5.0 -M *
COLD SPRINGS 9630 5.9 6.1 97 6.1 7.2 85
DEER PARK 9700 14.2 11.6 122 15.3 15.0 102
HOBBS PARK 10100 9.5 9.9 96 8.7 8.4 104
LITTLE WARM 9370 8.1 7.9 103 8.5 9.3 91
SOUTH PASS 9040 11.6 11.5 101 10.2 12.6 81
ST. LAWRENCE ALT 8620 3.8 4.8 79 4.6 5.8 79
TOGWOTEE PASS 9580 20.0 17.3 116 21.4 17.2 124
TOWNSEND CREEK 8700 -M 5.6 * -M 7.5 *
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Basin wide percent of average 105 98
BIGHORN BASIN
BALD MTN. 9380 16.1 13.7 118 13.4 12.0 112
BEAR TRAP MEADOW 8200 5.6 3.6 156 6.3 5.6 113
BLACKWATER 9780 18.0 16.8 107 17.6 14.5 121
BONE SPRINGS DIV 9350 12.9 10.8 119 11.1 9.8 113
EVENING STAR 9200 22.5 20.1 112 25.0 18.0 139
GRAVE SPRINGS 8550 5.1 6.0 85 5.4 6.5 83
KIRWIN 9550 7.9 7.8 101 8.8 7.8 113
MARQUETTE 8760 2.0 6.0 33 4.7 6.3 75
MIDDLE POWDER 7760 6.6 7.5 88 8.4 8.4 100
OWL CREEK 8975 3.3 3.5 94 3.5 3.8 92
POWDER RIVER PASS 9480 10.0 7.4 135 11.8 8.5 139
SHELL CREEK 9580 11.7 10.1 116 10.5 9.5 111
SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.1 128
SYLVAN ROAD 7120 10.8 9.0 120 14.4 13.6 106
TIMBER CREEK 7950 2.6 3.7 70 3.2 4.6 70
YOUNTS PEAK 8350 11.8 12.2 97 10.5 11.6 91
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Basin wide percent of average 106 112
SHOSHONE RIVER
BLACKWATER 9780 18.0 16.8 107 17.6 14.5 121
EVENING STAR 9200 22.5 20.1 112 25.0 18.0 139
KIRWIN 9550 7.9 7.8 101 8.8 7.8 113
MARQUETTE 8760 2.0 6.0 33 4.7 6.3 75
SYLVAN LAKE 8420 16.1 15.4 105 19.4 15.1 128
SYLVAN ROAD 7120 10.8 9.0 120 14.4 13.6 106
YOUNTS PEAK 8350 11.8 12.2 97 10.5 11.6 91
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Basin wide percent of average 102 116
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.6 3.6 156 6.3 5.6 113
BIG GOOSE 7990 5.1 6.2 82 6.7 5.8 116
BONE SPRINGS DIV 9350 12.9 10.8 119 11.1 9.8 113
BURGESS JUNCTION 7880 6.8 7.5 91 7.9 8.1 98
CLOUD PEAK RESERVOIR 9860 10.3 8.2 126 10.3 8.4 123
DOME LAKE 8880 7.5 8.1 93 9.0 8.9 101
GRAVE SPRINGS 8550 5.1 6.0 85 5.4 6.5 83
HANSEN SAWMILL 8360 4.7 4.3 109 5.0 5.4 93
LITTLE GOOSE 8870 6.0 -M * 9.9 -M *
MIDDLE POWDER 7760 6.6 7.5 88 8.4 8.4 100
POWDER RIVER PASS 9480 10.0 7.4 135 11.8 8.5 139
SOLDIER PARK 8720 4.5 -M * 5.9 -M *
SUCKER CREEK 8880 8.7 7.4 118 9.5 9.0 106
TIE CREEK 6870 4.4 4.2 105 6.6 6.9 96
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Basin wide percent of average 108 107
BELLE FOURCHE
BLIND PARK 6890 6.2 5.5 113 12.0 8.0 150
COLE CANYON 5910 5.3 4.6 115 8.4 4.8 175
NORTH RAPID CREEK 6130 5.8 5.2 112 10.1 6.4 158
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Basin wide percent of average 113 159
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 18.1 13.5 134 21.4 14.6 147
COLUMBINE 9160 21.9 17.1 128 23.7 17.1 139
DIVIDE PEAK 8880 14.5 13.2 110 18.5 14.0 132
ELK RIVER 8700 16.0 12.7 126 18.1 13.0 139
JOE WRIGHT 10120 18.5 14.3 129 23.7 16.6 143
NORTH FRENCH CREEK 10130 29.5 18.8 157 27.9 16.7 167
OLD BATTLE 10000 28.9 20.6 140 26.7 23.0 116
SAGE CREEK BASIN 7850 13.4 7.7 174 13.1 8.1 162
SOUTH BRUSH CREEK 8440 11.7 7.7 152 14.8 11.1 133
TOWER 10500 37.3 30.9 121 35.3 26.1 135
WEBBER SPRINGS 9250 20.1 16.6 121 24.9 18.4 135
WILLOW CREEK PASS 9540 12.4 7.7 161 12.1 8.5 142
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Basin wide percent of average 134 139
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.5 15.7 131 21.5 14.6 147
CASPER MTN. 7900 7.6 9.3 82 10.2 9.1 112
DEADMAN HILL 10220 -M 10.8 * -M 10.8 *
DEER PARK 9700 14.2 11.6 122 15.3 15.0 102
LAPRELE CREEK 8375 8.2 7.4 111 9.5 8.3 114
RENO HILL 8400 9.4 8.6 109 11.3 9.5 119
ROACH 9700 13.7 11.3 121 16.8 11.9 141
SAND LAKE 10050 24.4 20.4 120 22.9 16.2 141
SOUTH PASS 9040 11.6 11.5 101 10.2 12.6 81
WINDY PEAK 7900 6.5 4.7 138 9.1 7.1 128
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Basin wide percent of average 116 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.6 8.0 33 10.4 10.1 103
DIVIDE PEAK 8880 14.5 13.2 110 18.5 14.0 132
OLD BATTLE 10000 28.9 20.6 140 26.7 23.0 116
SANDSTONE RS 8150 -M 10.0 * -M 12.8 *
WHISKEY PARK 8950 -M 19.1 * 27.0 19.8 136
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Basin wide percent of average 110 123
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.8 9.8 100 10.3 9.2 112
BLIND BULL SUM 8650 20.2 18.9 107 14.7 15.8 93
EAST RIM DIVIDE 7930 9.7 8.8 110 8.9 8.3 107
ELKHART PARK G.S. 9400 8.8 9.0 98 9.0 9.1 99
GROS VENTRE SUMMIT 8750 10.3 9.7 106 10.2 8.8 116
GUNSIGHT PASS 9820 11.6 -M * 11.9 -M *
KENDALL R.S. 7740 8.7 10.1 86 10.5 10.0 105
LOOMIS PARK 8240 12.7 11.6 109 13.8 12.1 114
NEW FORK LAKE 8340 8.4 7.9 106 8.1 8.0 101
POCKET CREEK 9360 7.6 -M * 9.9 -M *
SNIDER BASIN 8060 13.9 10.1 138 14.0 11.3 124
SPRING CREEK DIVIDE 9000 24.0 17.9 134 23.5 18.7 126
TRIPLE PEAK 8500 21.4 17.1 125 22.8 16.6 137
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Basin wide percent of average 113 114
LOWER GREEN RIVER
HAMS FORK 7840 11.2 8.6 130 11.7 8.6 136
HEWINTA 9519 7.8 6.9 113 11.7 9.5 123
HICKERSON PARK 9145 4.5 4.6 98 6.3 5.3 119
HOLE-IN-ROCK 9150 5.0 4.3 116 6.6 4.9 135
INDIAN CREEK 9425 22.0 18.1 122 20.4 17.2 119
KELLEY R.S. 8180 14.6 11.0 133 17.3 14.2 122
STEEL CREEK PARK 10200 11.3 9.7 116 14.3 10.4 138
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Basin wide percent of average 121 126
UPPER BEAR RIVER
BUG LAKE 7950 18.8 13.6 138 20.3 13.2 154
HAYDEN FORK 9212 14.2 10.1 141 20.6 13.9 148
KELLEY R.S. 8180 14.6 11.0 133 17.3 14.2 122
LILY LAKE 9156 12.9 8.5 152 15.4 11.7 132
MONTE CRISTO 8960 23.3 18.9 123 24.9 17.2 145
SALT RIVER SUMMIT 7760 11.2 9.6 117 15.5 12.9 120
TRIAL LAKE 9992 23.9 16.2 148 24.6 16.3 151
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Basin wide percent of average 135 139
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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.