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 SUNDAY: FEBRUARY 13 , 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 14.2 103 17.6 16.4 107
COTTONWOOD CREEK 7670 19.4 15.8 123 26.2 20.4 128
GRAND TARGHEE 9260 35.7 -M * 25.5 -M *
GRANITE CREEK 6770 14.3 13.9 103 16.7 15.3 109
GRASSY LAKE 7265 25.5 25.8 99 28.4 27.5 103
GROS VENTRE SUMMIT 8750 11.3 10.2 111 11.0 9.5 116
GUNSIGHT PASS 9820 12.6 -M * 12.8 -M *
LEWIS LAKE DIVIDE 7850 24.7 25.9 95 25.5 27.5 93
PHILLIPS BENCH 8200 21.9 20.8 105 23.2 21.6 107
SALT RIVER SUMMIT 7760 12.1 10.6 114 16.2 13.9 117
SNAKE RIVER STATION 6920 -M 14.3 * -M 17.2 *
SPRING CREEK DIVIDE 9000 25.5 19.3 132 25.1 20.0 126
THUMB DIVIDE 7980 14.2 13.2 108 14.5 14.0 104
TOGWOTEE PASS 9580 21.6 18.5 117 23.0 18.4 125
TWO OCEAN PLATEAU 9240 24.1 20.8 116 20.1 20.4 99
WILLOW CREEK 8380 24.1 22.4 108 29.4 23.9 123
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Basin wide percent of average 109 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 18.7 17.8 105 18.2 15.3 119
BLACK BEAR 8170 30.8 28.3 109 30.2 29.0 104
CANYON 7870 11.6 9.8 118 13.3 11.7 114
FISHER CREEK 9100 29.2 26.1 112 28.4 27.0 105
MADISON PLATEAU 7750 19.1 18.0 106 21.0 19.4 108
NORTHEAST ENTRANCE 7350 9.7 8.5 114 11.6 9.7 120
PARKER PEAK 9400 21.0 16.0 131 -M 12.2 *
SYLVAN LAKE 8420 17.3 16.3 106 20.5 16.1 127
THUMB DIVIDE 7980 14.2 13.2 108 14.5 14.0 104
TWO OCEAN PLATEAU 9240 24.1 20.8 116 20.1 20.4 99
WHISKEY CREEK 6800 13.3 12.4 107 16.3 15.2 107
WHITE MILL 8700 20.2 17.7 114 20.8 20.1 103
WOLVERINE 7650 12.1 9.4 129 11.1 10.0 111
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Basin wide percent of average 113 109
WIND RIVER
BURROUGHS CREEK 8750 10.8 11.0 98 11.3 12.3 92
CASTLE CREEK 8400 4.6 -M * 5.2 -M *
COLD SPRINGS 9630 6.3 6.3 100 6.5 7.6 86
DEER PARK 9700 14.5 13.1 111 15.8 16.0 99
HOBBS PARK 10100 10.0 10.4 96 9.1 8.9 102
LITTLE WARM 9370 8.6 8.3 104 8.9 9.8 91
SOUTH PASS 9040 12.3 12.1 102 10.7 13.5 79
ST. LAWRENCE ALT 8620 4.3 5.1 84 5.0 6.3 79
TOGWOTEE PASS 9580 21.6 18.5 117 23.0 18.4 125
TOWNSEND CREEK 8700 -M 6.1 * -M 7.9 *
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Basin wide percent of average 104 97
BIGHORN BASIN
BALD MTN. 9380 17.7 14.3 124 14.2 12.7 112
BEAR TRAP MEADOW 8200 6.0 3.8 158 6.5 5.9 110
BLACKWATER 9780 19.0 17.8 107 18.5 15.4 120
BONE SPRINGS DIV 9350 14.1 11.5 123 11.8 10.4 113
EVENING STAR 9200 23.5 21.9 107 26.2 19.3 136
GRAVE SPRINGS 8550 6.1 6.3 97 6.3 6.9 91
KIRWIN 9550 8.3 8.2 101 9.3 8.2 113
MARQUETTE 8760 2.0 6.2 32 -M 6.7 *
MIDDLE POWDER 7760 7.2 7.9 91 8.9 8.8 101
OWL CREEK 8975 4.0 3.6 111 4.0 4.0 100
POWDER RIVER PASS 9480 10.5 7.7 136 12.4 9.0 138
SHELL CREEK 9580 12.5 10.6 118 11.1 10.0 111
SYLVAN LAKE 8420 17.3 16.3 106 20.5 16.1 127
SYLVAN ROAD 7120 11.5 9.8 117 15.3 14.3 107
TIMBER CREEK 7950 3.0 3.9 77 3.4 4.8 71
YOUNTS PEAK 8350 12.6 12.9 98 11.0 12.3 89
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Basin wide percent of average 108 113
SHOSHONE RIVER
BLACKWATER 9780 19.0 17.8 107 18.5 15.4 120
EVENING STAR 9200 23.5 21.9 107 26.2 19.3 136
KIRWIN 9550 8.3 8.2 101 9.3 8.2 113
MARQUETTE 8760 2.0 6.2 32 -M 6.7 *
SYLVAN LAKE 8420 17.3 16.3 106 20.5 16.1 127
SYLVAN ROAD 7120 11.5 9.8 117 15.3 14.3 107
YOUNTS PEAK 8350 12.6 12.9 98 11.0 12.3 89
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Basin wide percent of average 101 118
POWDER-TONGUE
BEAR TRAP MEADOW 8200 6.0 3.8 158 6.5 5.9 110
BIG GOOSE 7990 5.8 6.7 87 7.5 6.1 123
BONE SPRINGS DIV 9350 14.1 11.5 123 11.8 10.4 113
BURGESS JUNCTION 7880 8.0 8.0 100 8.9 8.5 105
CLOUD PEAK RESERVOIR 9860 11.3 8.8 128 11.0 8.8 125
DOME LAKE 8880 8.4 8.7 97 9.6 9.3 103
GRAVE SPRINGS 8550 6.1 6.3 97 6.3 6.9 91
HANSEN SAWMILL 8360 4.8 4.5 107 5.1 5.7 89
LITTLE GOOSE 8870 6.6 -M * 10.6 -M *
MIDDLE POWDER 7760 7.2 7.9 91 8.9 8.8 101
POWDER RIVER PASS 9480 10.5 7.7 136 12.4 9.0 138
SOLDIER PARK 8720 5.0 -M * 6.3 -M *
SUCKER CREEK 8880 9.8 7.9 124 10.7 9.5 113
TIE CREEK 6870 5.4 4.4 123 7.6 7.2 106
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Basin wide percent of average 113 111
BELLE FOURCHE
BLIND PARK 6890 7.9 5.8 136 13.6 8.4 162
COLE CANYON 5910 6.6 5.0 132 9.5 5.0 190
NORTH RAPID CREEK 6130 7.5 5.8 129 11.6 6.8 171
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Basin wide percent of average 133 172
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 20.4 14.5 141 21.7 15.7 138
COLUMBINE 9160 25.1 18.9 133 24.9 18.3 136
DIVIDE PEAK 8880 15.8 14.0 113 19.8 15.0 132
ELK RIVER 8700 18.4 13.9 132 20.3 14.1 144
JOE WRIGHT 10120 21.6 15.3 141 25.4 17.8 143
NORTH FRENCH CREEK 10130 33.5 20.0 168 -M 17.9 *
OLD BATTLE 10000 31.5 22.5 140 27.2 24.7 110
SAGE CREEK BASIN 7850 15.0 8.1 185 13.9 8.7 160
SOUTH BRUSH CREEK 8440 13.4 8.4 160 16.7 11.9 140
TOWER 10500 41.1 33.3 123 41.3 28.0 148
WEBBER SPRINGS 9250 22.0 18.1 122 26.8 19.6 137
WILLOW CREEK PASS 9540 13.5 8.4 161 13.2 9.1 145
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Basin wide percent of average 139 137
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 22.7 16.8 135 23.5 15.5 152
CASPER MTN. 7900 8.8 9.9 89 11.1 9.7 114
DEADMAN HILL 10220 15.3 11.6 132 16.8 11.6 145
DEER PARK 9700 14.5 13.1 111 15.8 16.0 99
LAPRELE CREEK 8375 9.4 7.9 119 10.8 8.8 123
RENO HILL 8400 11.1 9.1 122 12.9 10.2 126
ROACH 9700 15.8 12.3 128 19.1 12.8 149
SAND LAKE 10050 27.4 21.9 125 25.9 17.2 151
SOUTH PASS 9040 12.3 12.1 102 10.7 13.5 79
WINDY PEAK 7900 7.6 5.2 146 9.9 7.5 132
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Basin wide percent of average 121 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M 8.6 * 10.9 10.8 101
DIVIDE PEAK 8880 15.8 14.0 113 19.8 15.0 132
OLD BATTLE 10000 31.5 22.5 140 27.2 24.7 110
SANDSTONE RS 8150 10.7 10.9 98 -M 13.8 *
WHISKEY PARK 8950 -M 20.7 * 29.4 21.0 140
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Basin wide percent of average 122 122
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.1 10.6 95 10.5 10.0 105
BLIND BULL SUM 8650 21.7 20.3 107 15.5 16.9 92
EAST RIM DIVIDE 7930 11.0 9.6 115 9.5 8.9 107
ELKHART PARK G.S. 9400 9.3 9.7 96 9.3 9.7 96
GROS VENTRE SUMMIT 8750 11.3 10.2 111 11.0 9.5 116
GUNSIGHT PASS 9820 12.6 -M * 12.8 -M *
KENDALL R.S. 7740 9.2 10.8 85 10.9 10.8 101
LOOMIS PARK 8240 13.8 12.5 110 14.9 13.0 115
NEW FORK LAKE 8340 9.1 8.5 107 8.6 8.6 100
POCKET CREEK 9360 7.5 -M * 10.1 -M *
SNIDER BASIN 8060 14.8 10.9 136 14.8 12.2 121
SPRING CREEK DIVIDE 9000 25.5 19.3 132 25.1 20.0 126
TRIPLE PEAK 8500 22.8 18.4 124 24.4 17.9 136
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Basin wide percent of average 113 112
LOWER GREEN RIVER
HAMS FORK 7840 11.7 9.4 124 11.9 9.2 129
HEWINTA 9519 9.1 7.7 118 12.7 10.2 125
HICKERSON PARK 9145 5.2 5.0 104 6.9 5.6 123
HOLE-IN-ROCK 9150 6.0 4.8 125 7.5 5.2 144
INDIAN CREEK 9425 22.9 19.4 118 21.1 18.5 114
KELLEY R.S. 8180 15.1 12.0 126 17.8 15.2 117
STEEL CREEK PARK 10200 12.6 10.7 118 15.4 11.2 138
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Basin wide percent of average 120 124
UPPER BEAR RIVER
BUG LAKE 7950 20.2 14.8 136 20.9 14.2 147
HAYDEN FORK 9212 16.4 11.2 146 22.6 15.0 151
KELLEY R.S. 8180 15.1 12.0 126 17.8 15.2 117
LILY LAKE 9156 14.1 9.3 152 16.6 12.6 132
MONTE CRISTO 8960 24.4 20.9 117 25.2 18.5 136
SALT RIVER SUMMIT 7760 12.1 10.6 114 16.2 13.9 117
TRIAL LAKE 9992 25.8 17.7 146 26.3 17.7 149
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Basin wide percent of average 133 136
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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.