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 TUESDAY: JANUARY 18 , 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 12.9 10.7 121 15.7 13.0 121
COTTONWOOD CREEK 7670 18.1 12.3 147 22.4 16.7 134
GRAND TARGHEE 9260 31.0 -M * 22.9 -M *
GRANITE CREEK 6770 12.6 10.3 122 14.9 11.9 125
GRASSY LAKE 7265 22.6 19.3 117 25.5 21.9 116
GROS VENTRE SUMMIT 8750 9.3 8.4 111 9.3 7.7 121
GUNSIGHT PASS 9820 10.6 -M * 10.9 -M *
LEWIS LAKE DIVIDE 7850 22.5 19.3 117 23.2 21.8 106
PHILLIPS BENCH 8200 19.2 15.9 121 20.6 17.0 121
SALT RIVER SUMMIT 7760 10.4 7.5 139 14.4 11.1 130
SNAKE RIVER STATION 6920 9.8 10.4 94 16.9 13.6 124
SPRING CREEK DIVIDE 9000 21.9 15.2 144 22.0 16.2 136
THUMB DIVIDE 7980 12.9 9.9 130 13.3 11.3 118
TOGWOTEE PASS 9580 18.2 14.6 125 19.4 14.8 131
TWO OCEAN PLATEAU 9240 21.5 16.5 130 16.9 16.3 104
WILLOW CREEK 8380 20.7 17.6 118 25.4 19.2 132
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Basin wide percent of average 124 122
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 15.5 14.4 108 15.3 12.3 124
BLACK BEAR 8170 27.6 22.3 124 26.9 22.5 120
CANYON 7870 9.9 7.8 127 11.2 9.5 118
FISHER CREEK 9100 23.8 21.0 113 22.9 21.5 107
MADISON PLATEAU 7750 17.3 14.3 121 19.1 15.2 126
NORTHEAST ENTRANCE 7350 7.4 6.7 110 9.6 7.8 123
PARKER PEAK 9400 17.6 13.1 134 16.8 9.8 171
SYLVAN LAKE 8420 14.8 13.2 112 18.0 13.1 137
THUMB DIVIDE 7980 12.9 9.9 130 13.3 11.3 118
TWO OCEAN PLATEAU 9240 21.5 16.5 130 16.9 16.3 104
WHISKEY CREEK 6800 12.2 9.6 127 14.7 12.2 120
WHITE MILL 8700 16.3 14.3 114 17.3 15.9 109
WOLVERINE 7650 9.8 7.6 129 9.1 8.2 111
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Basin wide percent of average 121 120
WIND RIVER
BURROUGHS CREEK 8750 9.3 9.0 103 9.8 10.0 98
CASTLE CREEK 8400 4.0 -M * 4.8 -M *
COLD SPRINGS 9630 5.5 5.5 100 5.5 6.5 85
DEER PARK 9700 13.5 9.7 139 14.5 12.9 112
HOBBS PARK 10100 9.2 9.0 102 8.4 7.4 114
LITTLE WARM 9370 7.3 6.9 106 7.4 8.2 90
SOUTH PASS 9040 11.0 10.0 110 9.7 10.8 90
ST. LAWRENCE ALT 8620 3.6 4.4 82 4.4 5.2 85
TOGWOTEE PASS 9580 18.2 14.6 125 19.4 14.8 131
TOWNSEND CREEK 8700 5.1 5.1 100 7.1 6.7 106
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Basin wide percent of average 111 104
BIGHORN BASIN
BALD MTN. 9380 13.5 12.0 113 11.9 10.4 114
BEAR TRAP MEADOW 8200 4.6 3.1 148 5.5 5.0 110
BLACKWATER 9780 16.3 14.7 111 15.8 12.7 124
BONE SPRINGS DIV 9350 10.6 9.6 110 9.5 8.6 110
EVENING STAR 9200 20.3 17.4 117 22.4 15.7 143
GRAVE SPRINGS 8550 4.2 5.0 84 4.6 5.9 78
KIRWIN 9550 7.4 7.1 104 8.1 6.9 117
MARQUETTE 8760 1.7 5.5 31 4.4 5.8 76
MIDDLE POWDER 7760 5.8 6.5 89 4.0 7.6 53
OWL CREEK 8975 2.9 3.1 94 3.3 3.3 100
POWDER RIVER PASS 9480 8.3 6.5 128 9.3 7.3 127
SHELL CREEK 9580 9.8 9.0 109 8.7 8.1 107
SYLVAN LAKE 8420 14.8 13.2 112 18.0 13.1 137
SYLVAN ROAD 7120 9.9 7.8 127 13.1 12.0 109
TIMBER CREEK 7950 2.3 3.4 68 2.8 4.1 68
YOUNTS PEAK 8350 10.8 10.4 104 9.6 10.1 95
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Basin wide percent of average 107 111
SHOSHONE RIVER
BLACKWATER 9780 16.3 14.7 111 15.8 12.7 124
EVENING STAR 9200 20.3 17.4 117 22.4 15.7 143
KIRWIN 9550 7.4 7.1 104 8.1 6.9 117
MARQUETTE 8760 1.7 5.5 31 4.4 5.8 76
SYLVAN LAKE 8420 14.8 13.2 112 18.0 13.1 137
SYLVAN ROAD 7120 9.9 7.8 127 13.1 12.0 109
YOUNTS PEAK 8350 10.8 10.4 104 9.6 10.1 95
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Basin wide percent of average 107 120
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.6 3.1 148 5.5 5.0 110
BIG GOOSE 7990 3.8 5.3 72 5.4 4.9 110
BONE SPRINGS DIV 9350 10.6 9.6 110 9.5 8.6 110
BURGESS JUNCTION 7880 4.7 6.7 70 6.0 7.1 85
CLOUD PEAK RESERVOIR 9860 8.3 7.2 115 8.6 7.4 116
DOME LAKE 8880 5.3 7.2 74 7.0 7.9 89
GRAVE SPRINGS 8550 4.2 5.0 84 4.6 5.9 78
HANSEN SAWMILL 8360 4.1 3.8 108 4.4 4.8 92
LITTLE GOOSE 8870 4.6 -M * 8.3 -M *
MIDDLE POWDER 7760 5.8 6.5 89 4.0 7.6 53
POWDER RIVER PASS 9480 8.3 6.5 128 9.3 7.3 127
SOLDIER PARK 8720 3.6 -M * 5.1 -M *
SUCKER CREEK 8880 6.5 6.4 102 7.2 7.8 92
TIE CREEK 6870 3.0 3.7 81 4.9 6.0 82
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Basin wide percent of average 97 95
BELLE FOURCHE
BLIND PARK 6890 4.4 4.6 96 10.0 7.1 141
COLE CANYON 5910 4.5 3.9 115 7.0 4.4 159
NORTH RAPID CREEK 6130 4.7 4.2 112 8.8 5.9 149
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Basin wide percent of average 107 148
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 15.9 12.1 131 19.0 13.3 143
COLUMBINE 9160 19.3 13.5 143 21.4 14.5 148
DIVIDE PEAK 8880 12.9 11.4 113 16.9 12.2 139
ELK RIVER 8700 14.4 10.0 144 16.8 11.1 151
JOE WRIGHT 10120 16.2 12.0 135 22.0 14.4 153
NORTH FRENCH CREEK 10130 26.4 16.3 162 25.7 14.5 177
OLD BATTLE 10000 26.4 17.5 151 26.5 19.7 135
SAGE CREEK BASIN 7850 11.4 6.6 173 12.0 7.1 169
SOUTH BRUSH CREEK 8440 10.6 6.4 166 14.0 9.5 147
TOWER 10500 33.7 25.8 131 34.8 22.2 157
WEBBER SPRINGS 9250 17.8 13.9 128 22.6 16.1 140
WILLOW CREEK PASS 9540 11.3 6.6 171 11.4 7.4 154
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Basin wide percent of average 142 150
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 17.6 13.4 131 18.5 12.6 147
CASPER MTN. 7900 6.5 8.1 80 9.2 8.1 114
DEADMAN HILL 10220 8.1 9.3 87 14.1 9.4 150
DEER PARK 9700 13.5 9.7 139 14.5 12.9 112
LAPRELE CREEK 8375 6.7 6.4 105 7.9 7.3 108
RENO HILL 8400 8.1 7.6 107 10.0 8.5 118
ROACH 9700 12.5 9.3 134 15.8 10.3 153
SAND LAKE 10050 21.5 17.7 121 20.4 14.2 144
SOUTH PASS 9040 11.0 10.0 110 9.7 10.8 90
WINDY PEAK 7900 5.1 4.0 128 7.5 6.4 117
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Basin wide percent of average 116 127
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.1 6.2 98 9.7 8.7 111
DIVIDE PEAK 8880 12.9 11.4 113 16.9 12.2 139
OLD BATTLE 10000 26.4 17.5 151 26.5 19.7 135
SANDSTONE RS 8150 8.2 7.7 106 16.2 11.0 147
WHISKEY PARK 8950 -M 15.2 * 24.4 17.0 144
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Basin wide percent of average 125 137
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.6 8.3 116 10.1 8.0 126
BLIND BULL SUM 8650 18.3 16.2 113 13.6 13.6 100
EAST RIM DIVIDE 7930 8.4 7.3 115 8.1 7.1 114
ELKHART PARK G.S. 9400 8.1 7.7 105 8.5 8.0 106
GROS VENTRE SUMMIT 8750 9.3 8.4 111 9.3 7.7 121
GUNSIGHT PASS 9820 10.6 -M * 10.9 -M *
KENDALL R.S. 7740 7.8 8.5 92 9.5 8.5 112
LOOMIS PARK 8240 11.5 9.8 117 12.6 10.4 121
NEW FORK LAKE 8340 7.8 6.7 116 7.3 7.1 103
POCKET CREEK 9360 7.5 -M * 9.4 -M *
SNIDER BASIN 8060 12.8 8.5 151 13.2 9.8 135
SPRING CREEK DIVIDE 9000 21.9 15.2 144 22.0 16.2 136
TRIPLE PEAK 8500 18.8 14.6 129 20.9 14.1 148
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Basin wide percent of average 121 122
LOWER GREEN RIVER
HAMS FORK 7840 10.0 7.1 141 10.4 7.3 142
HEWINTA 9519 6.4 5.5 116 10.7 8.2 130
HICKERSON PARK 9145 3.6 3.7 97 5.5 4.7 117
HOLE-IN-ROCK 9150 4.3 3.4 126 5.8 4.4 132
INDIAN CREEK 9425 20.1 15.4 131 18.7 14.9 126
KELLEY R.S. 8180 13.2 9.2 143 16.1 12.4 130
STEEL CREEK PARK 10200 9.7 8.1 120 12.8 9.0 142
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Basin wide percent of average 128 131
UPPER BEAR RIVER
BUG LAKE 7950 17.2 11.0 156 18.5 11.3 164
HAYDEN FORK 9212 12.1 8.2 148 19.5 12.1 161
KELLEY R.S. 8180 13.2 9.2 143 16.1 12.4 130
LILY LAKE 9156 11.0 6.9 159 14.2 10.2 139
MONTE CRISTO 8960 20.7 14.9 139 23.1 14.7 157
SALT RIVER SUMMIT 7760 10.4 7.5 139 14.4 11.1 130
TRIAL LAKE 9992 22.4 13.3 168 23.5 13.9 169
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Basin wide percent of average 151 151
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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.