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 MONDAY: JANUARY 17 , 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 12.5 10.6 118 15.2 12.8 119
COTTONWOOD CREEK 7670 17.9 12.1 148 22.1 16.5 134
GRAND TARGHEE 9260 30.6 -M * -M -M *
GRANITE CREEK 6770 12.3 10.1 122 14.5 11.8 123
GRASSY LAKE 7265 22.2 19.0 117 25.2 21.7 116
GROS VENTRE SUMMIT 8750 9.3 8.3 112 9.3 7.6 122
GUNSIGHT PASS 9820 10.4 -M * 10.7 -M *
LEWIS LAKE DIVIDE 7850 22.2 19.0 117 22.9 21.6 106
PHILLIPS BENCH 8200 18.9 15.7 120 20.3 16.8 121
SALT RIVER SUMMIT 7760 10.3 7.3 141 14.2 11.0 129
SNAKE RIVER STATION 6920 9.7 10.2 95 16.7 13.5 124
SPRING CREEK DIVIDE 9000 20.1 15.0 134 20.4 16.1 127
THUMB DIVIDE 7980 12.9 9.7 133 13.3 11.1 120
TOGWOTEE PASS 9580 17.4 14.4 121 18.5 14.7 126
TWO OCEAN PLATEAU 9240 21.2 16.3 130 16.8 16.2 104
WILLOW CREEK 8380 20.1 17.4 116 25.2 19.0 133
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Basin wide percent of average 123 121
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 15.0 14.3 105 14.7 12.1 121
BLACK BEAR 8170 27.3 22.0 124 26.7 22.2 120
CANYON 7870 9.7 7.8 124 11.2 9.4 119
FISHER CREEK 9100 23.2 20.8 112 22.5 21.3 106
MADISON PLATEAU 7750 17.1 14.2 120 18.9 15.0 126
NORTHEAST ENTRANCE 7350 7.2 6.6 109 9.3 7.7 121
PARKER PEAK 9400 17.6 13.0 135 16.7 9.7 172
SYLVAN LAKE 8420 14.7 13.1 112 17.9 13.0 138
THUMB DIVIDE 7980 12.9 9.7 133 13.3 11.1 120
TWO OCEAN PLATEAU 9240 21.2 16.3 130 16.8 16.2 104
WHISKEY CREEK 6800 12.0 9.5 126 14.5 12.0 121
WHITE MILL 8700 15.8 14.1 112 16.9 15.7 108
WOLVERINE 7650 9.6 7.4 130 9.0 8.2 110
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Basin wide percent of average 120 120
WIND RIVER
BURROUGHS CREEK 8750 8.8 8.9 99 9.3 9.8 95
CASTLE CREEK 8400 4.0 -M * 4.7 -M *
COLD SPRINGS 9630 5.4 5.5 98 5.5 6.5 85
DEER PARK 9700 13.2 9.6 138 14.2 12.8 111
HOBBS PARK 10100 9.0 9.0 100 8.1 7.4 109
LITTLE WARM 9370 7.2 6.8 106 7.3 8.1 90
SOUTH PASS 9040 10.8 9.9 109 9.7 10.7 91
ST. LAWRENCE ALT 8620 3.7 4.3 86 4.5 5.1 88
TOGWOTEE PASS 9580 17.4 14.4 121 18.5 14.7 126
TOWNSEND CREEK 8700 5.2 5.1 102 7.0 6.7 104
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Basin wide percent of average 110 103
BIGHORN BASIN
BALD MTN. 9380 12.3 11.9 103 11.0 10.3 107
BEAR TRAP MEADOW 8200 4.3 3.0 143 5.4 5.0 108
BLACKWATER 9780 16.0 14.6 110 15.6 12.6 124
BONE SPRINGS DIV 9350 9.9 9.4 105 8.9 8.5 105
EVENING STAR 9200 19.9 17.3 115 21.9 15.5 141
GRAVE SPRINGS 8550 4.1 5.0 82 4.5 5.8 78
KIRWIN 9550 7.3 7.0 104 8.0 6.9 116
MARQUETTE 8760 1.8 5.5 33 4.4 5.8 76
MIDDLE POWDER 7760 5.7 6.4 89 4.0 7.6 53
OWL CREEK 8975 2.9 3.1 94 3.3 3.3 100
POWDER RIVER PASS 9480 7.7 6.4 120 8.7 7.2 121
SHELL CREEK 9580 8.9 8.8 101 7.8 8.0 98
SYLVAN LAKE 8420 14.7 13.1 112 17.9 13.0 138
SYLVAN ROAD 7120 9.6 7.7 125 12.9 11.9 108
TIMBER CREEK 7950 2.4 3.4 71 2.8 4.1 68
YOUNTS PEAK 8350 10.6 10.2 104 9.5 10.0 95
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Basin wide percent of average 104 108
SHOSHONE RIVER
BLACKWATER 9780 16.0 14.6 110 15.6 12.6 124
EVENING STAR 9200 19.9 17.3 115 21.9 15.5 141
KIRWIN 9550 7.3 7.0 104 8.0 6.9 116
MARQUETTE 8760 1.8 5.5 33 4.4 5.8 76
SYLVAN LAKE 8420 14.7 13.1 112 17.9 13.0 138
SYLVAN ROAD 7120 9.6 7.7 125 12.9 11.9 108
YOUNTS PEAK 8350 10.6 10.2 104 9.5 10.0 95
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Basin wide percent of average 106 119
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.3 3.0 143 5.4 5.0 108
BIG GOOSE 7990 3.7 5.3 70 5.3 4.9 108
BONE SPRINGS DIV 9350 9.9 9.4 105 8.9 8.5 105
BURGESS JUNCTION 7880 4.6 6.6 70 5.9 7.0 84
CLOUD PEAK RESERVOIR 9860 8.1 7.1 114 8.4 7.4 114
DOME LAKE 8880 5.0 7.1 70 6.9 7.8 88
GRAVE SPRINGS 8550 4.1 5.0 82 4.5 5.8 78
HANSEN SAWMILL 8360 4.0 3.8 105 4.3 4.8 90
LITTLE GOOSE 8870 4.4 -M * 8.1 -M *
MIDDLE POWDER 7760 5.7 6.4 89 4.0 7.6 53
POWDER RIVER PASS 9480 7.7 6.4 120 8.7 7.2 121
SOLDIER PARK 8720 3.6 -M * 5.0 -M *
SUCKER CREEK 8880 6.2 6.4 97 6.9 7.8 88
TIE CREEK 6870 2.9 3.6 81 4.8 6.0 80
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Basin wide percent of average 94 93
BELLE FOURCHE
BLIND PARK 6890 4.1 4.6 89 9.6 7.1 135
COLE CANYON 5910 4.5 3.9 115 6.7 4.3 156
NORTH RAPID CREEK 6130 4.5 4.1 110 8.4 5.8 145
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Basin wide percent of average 104 144
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 15.0 12.0 125 18.0 13.2 136
COLUMBINE 9160 17.7 13.2 134 20.4 14.3 143
DIVIDE PEAK 8880 12.9 11.3 114 16.8 12.0 140
ELK RIVER 8700 13.8 9.8 141 16.4 11.0 149
JOE WRIGHT 10120 15.3 11.8 130 21.1 14.2 149
NORTH FRENCH CREEK 10130 24.8 16.1 154 24.1 14.4 167
OLD BATTLE 10000 25.9 17.3 150 26.1 19.5 134
SAGE CREEK BASIN 7850 11.3 6.6 171 12.0 7.0 171
SOUTH BRUSH CREEK 8440 10.6 6.3 168 13.9 9.4 148
TOWER 10500 31.2 25.5 122 33.0 22.0 150
WEBBER SPRINGS 9250 17.2 13.8 125 22.2 15.9 140
WILLOW CREEK PASS 9540 10.9 6.5 168 11.1 7.4 150
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Basin wide percent of average 138 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 16.5 13.2 125 17.5 12.5 140
CASPER MTN. 7900 6.4 8.0 80 9.0 8.1 111
DEADMAN HILL 10220 7.8 9.2 85 14.0 9.3 151
DEER PARK 9700 13.2 9.6 138 14.2 12.8 111
LAPRELE CREEK 8375 6.4 6.4 100 7.6 7.3 104
RENO HILL 8400 7.8 7.6 103 9.6 8.4 114
ROACH 9700 12.2 9.2 133 15.4 10.2 151
SAND LAKE 10050 21.0 17.6 119 19.9 14.1 141
SOUTH PASS 9040 10.8 9.9 109 9.7 10.7 91
WINDY PEAK 7900 5.0 3.9 128 7.4 6.3 117
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Basin wide percent of average 113 125
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.9 6.1 97 9.8 8.7 113
DIVIDE PEAK 8880 12.9 11.3 114 16.8 12.0 140
OLD BATTLE 10000 25.9 17.3 150 26.1 19.5 134
SANDSTONE RS 8150 8.1 7.6 107 16.2 10.9 149
WHISKEY PARK 8950 -M 14.9 * 23.6 16.8 140
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Basin wide percent of average 125 136
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.1 8.3 110 9.6 7.9 122
BLIND BULL SUM 8650 17.0 16.0 106 12.7 13.5 94
EAST RIM DIVIDE 7930 8.2 7.2 114 8.0 7.0 114
ELKHART PARK G.S. 9400 7.6 7.6 100 8.1 7.9 103
GROS VENTRE SUMMIT 8750 9.3 8.3 112 9.3 7.6 122
GUNSIGHT PASS 9820 10.4 -M * 10.7 -M *
KENDALL R.S. 7740 7.7 8.4 92 9.3 8.5 109
LOOMIS PARK 8240 10.9 9.7 112 12.0 10.2 118
NEW FORK LAKE 8340 7.3 6.6 111 6.9 7.0 99
POCKET CREEK 9360 7.0 -M * 9.0 -M *
SNIDER BASIN 8060 11.7 8.4 139 12.2 9.7 126
SPRING CREEK DIVIDE 9000 20.1 15.0 134 20.4 16.1 127
TRIPLE PEAK 8500 17.0 14.4 118 19.3 14.0 138
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Basin wide percent of average 115 117
LOWER GREEN RIVER
HAMS FORK 7840 9.1 7.0 130 9.7 7.3 133
HEWINTA 9519 6.1 5.4 113 10.3 8.2 126
HICKERSON PARK 9145 3.6 3.7 97 5.5 4.7 117
HOLE-IN-ROCK 9150 4.2 3.4 124 5.7 4.3 133
INDIAN CREEK 9425 19.4 15.2 128 18.2 14.8 123
KELLEY R.S. 8180 12.8 9.2 139 15.8 12.3 128
STEEL CREEK PARK 10200 9.5 8.0 119 12.4 8.9 139
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Basin wide percent of average 125 128
UPPER BEAR RIVER
BUG LAKE 7950 17.0 10.9 156 18.7 11.2 167
HAYDEN FORK 9212 11.4 8.1 141 18.8 11.9 158
KELLEY R.S. 8180 12.8 9.2 139 15.8 12.3 128
LILY LAKE 9156 10.4 6.8 153 13.7 10.1 136
MONTE CRISTO 8960 20.3 14.7 138 22.5 14.6 154
SALT RIVER SUMMIT 7760 10.3 7.3 141 14.2 11.0 129
TRIAL LAKE 9992 21.8 13.1 166 23.1 13.7 169
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Basin wide percent of average 148 150
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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.