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 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 10.3 8.7 118 13.5 10.9 124
COTTONWOOD CREEK 7670 14.4 10.2 141 19.0 14.1 135
GRAND TARGHEE 9260 24.8 -M * 18.1 -M *
GRANITE CREEK 6770 10.9 8.1 135 13.2 10.0 132
GRASSY LAKE 7265 16.8 15.5 108 19.9 18.2 109
GROS VENTRE SUMMIT 8750 8.7 7.2 121 8.5 6.6 129
GUNSIGHT PASS 9820 9.3 -M * 9.6 -M *
LEWIS LAKE DIVIDE 7850 19.0 15.5 123 20.0 18.3 109
PHILLIPS BENCH 8200 16.7 13.2 127 18.2 14.1 129
SALT RIVER SUMMIT 7760 8.2 5.7 144 12.1 9.4 129
SNAKE RIVER STATION 6920 -M 8.3 * 14.3 11.5 124
SPRING CREEK DIVIDE 9000 16.4 13.0 126 17.0 13.7 124
THUMB DIVIDE 7980 11.7 8.0 146 12.2 9.5 128
TOGWOTEE PASS 9580 15.1 12.2 124 16.3 12.5 130
TWO OCEAN PLATEAU 9240 19.1 14.0 136 15.2 14.0 109
WILLOW CREEK 8380 16.6 14.9 111 21.8 16.2 135
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Basin wide percent of average 126 124
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 12.4 11.9 104 12.2 10.4 117
BLACK BEAR 8170 22.9 18.1 127 23.6 18.4 128
CANYON 7870 8.6 6.4 134 10.0 8.1 123
FISHER CREEK 9100 18.9 17.0 111 18.7 17.9 104
MADISON PLATEAU 7750 15.0 11.7 128 16.7 12.9 129
NORTHEAST ENTRANCE 7350 6.0 5.2 115 7.9 6.7 118
PARKER PEAK 9400 13.9 11.0 126 14.2 8.5 167
SYLVAN LAKE 8420 12.0 11.0 109 15.0 11.4 132
THUMB DIVIDE 7980 11.7 8.0 146 12.2 9.5 128
TWO OCEAN PLATEAU 9240 19.1 14.0 136 15.2 14.0 109
WHISKEY CREEK 6800 10.3 7.9 130 12.9 10.3 125
WHITE MILL 8700 13.1 11.6 113 14.1 13.4 105
WOLVERINE 7650 7.6 6.0 127 7.7 7.2 107
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Basin wide percent of average 123 121
WIND RIVER
BURROUGHS CREEK 8750 7.9 7.0 113 8.3 8.4 99
CASTLE CREEK 8400 3.6 -M * 4.1 -M *
COLD SPRINGS 9630 4.9 4.7 104 5.0 5.8 86
DEER PARK 9700 12.7 7.1 179 13.6 11.3 120
HOBBS PARK 10100 8.5 7.8 109 7.6 6.6 115
LITTLE WARM 9370 6.6 5.5 120 6.7 7.0 96
SOUTH PASS 9040 10.2 8.4 121 9.3 9.5 98
ST. LAWRENCE ALT 8620 3.1 3.9 79 4.1 4.7 87
TOGWOTEE PASS 9580 15.1 12.2 124 16.3 12.5 130
TOWNSEND CREEK 8700 4.8 4.4 109 6.7 6.1 110
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Basin wide percent of average 121 108
BIGHORN BASIN
BALD MTN. 9380 10.5 10.1 104 9.5 8.8 108
BEAR TRAP MEADOW 8200 3.5 2.7 130 4.5 4.6 98
BLACKWATER 9780 14.2 12.4 115 13.4 11.1 121
BONE SPRINGS DIV 9350 8.1 8.1 100 7.4 7.5 99
EVENING STAR 9200 16.0 14.3 112 17.3 13.5 128
GRAVE SPRINGS 8550 3.7 4.3 86 4.3 5.0 86
KIRWIN 9550 6.8 6.1 111 7.3 6.1 120
MARQUETTE 8760 1.7 5.0 34 3.6 5.4 67
MIDDLE POWDER 7760 5.1 5.7 89 3.5 7.0 50
OWL CREEK 8975 2.5 2.7 93 2.8 3.0 93
POWDER RIVER PASS 9480 6.5 5.4 120 7.2 6.2 116
SHELL CREEK 9580 7.4 7.6 97 6.5 6.9 94
SYLVAN LAKE 8420 12.0 11.0 109 15.0 11.4 132
SYLVAN ROAD 7120 8.1 6.5 125 11.1 10.4 107
TIMBER CREEK 7950 2.2 3.1 71 2.6 3.8 68
YOUNTS PEAK 8350 9.5 8.3 114 8.6 8.6 100
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Basin wide percent of average 104 104
SHOSHONE RIVER
BLACKWATER 9780 14.2 12.4 115 13.4 11.1 121
EVENING STAR 9200 16.0 14.3 112 17.3 13.5 128
KIRWIN 9550 6.8 6.1 111 7.3 6.1 120
MARQUETTE 8760 1.7 5.0 34 3.6 5.4 67
SYLVAN LAKE 8420 12.0 11.0 109 15.0 11.4 132
SYLVAN ROAD 7120 8.1 6.5 125 11.1 10.4 107
YOUNTS PEAK 8350 9.5 8.3 114 8.6 8.6 100
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Basin wide percent of average 107 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.5 2.7 130 4.5 4.6 98
BIG GOOSE 7990 2.9 4.6 63 4.5 4.6 98
BONE SPRINGS DIV 9350 8.1 8.1 100 7.4 7.5 99
BURGESS JUNCTION 7880 3.8 5.7 67 5.0 6.3 79
CLOUD PEAK RESERVOIR 9860 7.0 5.9 119 7.4 6.6 112
DOME LAKE 8880 3.8 6.2 61 5.9 7.1 83
GRAVE SPRINGS 8550 3.7 4.3 86 4.3 5.0 86
HANSEN SAWMILL 8360 3.0 3.3 91 3.6 4.4 82
LITTLE GOOSE 8870 3.6 -M * 7.2 -M *
MIDDLE POWDER 7760 5.1 5.7 89 3.5 7.0 50
POWDER RIVER PASS 9480 6.5 5.4 120 7.2 6.2 116
SOLDIER PARK 8720 2.7 -M * 4.3 -M *
SUCKER CREEK 8880 5.2 5.4 96 6.0 6.9 87
TIE CREEK 6870 2.3 2.6 88 4.1 5.3 77
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Basin wide percent of average 92 89
BELLE FOURCHE
BLIND PARK 6890 3.1 3.8 82 8.5 6.4 133
COLE CANYON 5910 3.2 3.4 94 5.8 4.0 145
NORTH RAPID CREEK 6130 3.4 3.5 97 7.3 5.4 135
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Basin wide percent of average 91 137
UPPER N. PLATTE RIVER
COLUMBINE 9160 15.6 10.6 147 18.5 12.1 153
DIVIDE PEAK 8880 11.9 9.6 124 15.6 10.4 150
ELK RIVER 8700 12.0 7.7 156 14.6 9.3 157
JOE WRIGHT 10120 14.5 10.1 144 19.6 12.4 158
NORTH FRENCH CREEK 10130 21.1 13.9 152 20.6 12.5 165
OLD BATTLE 10000 23.9 15.1 158 24.5 16.7 147
SAGE CREEK BASIN 7850 10.4 5.6 186 11.3 6.1 185
SOUTH BRUSH CREEK 8440 9.4 5.4 174 12.6 8.1 156
TOWER 10500 27.8 21.5 129 27.5 18.6 148
WEBBER SPRINGS 9250 16.3 11.9 137 20.7 13.6 152
WILLOW CREEK PASS 9540 10.7 5.8 184 10.9 6.6 165
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Basin wide percent of average 148 155
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 14.9 11.2 133 16.4 10.6 155
CASPER MTN. 7900 5.9 7.1 83 8.8 7.4 119
DEADMAN HILL 10220 5.9 7.9 75 13.2 8.1 163
DEER PARK 9700 12.7 7.1 179 13.6 11.3 120
LAPRELE CREEK 8375 5.7 5.5 104 7.0 6.4 109
RENO HILL 8400 7.3 6.8 107 9.1 7.4 123
ROACH 9700 11.2 7.7 145 14.1 8.8 160
SAND LAKE 10050 19.1 15.4 124 18.3 12.0 153
SOUTH PASS 9040 10.2 8.4 121 9.3 9.5 98
WINDY PEAK 7900 4.6 3.6 128 7.2 5.7 126
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Basin wide percent of average 121 134
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.0 4.4 136 8.8 7.4 119
DIVIDE PEAK 8880 11.9 9.6 124 15.6 10.4 150
OLD BATTLE 10000 23.9 15.1 158 24.5 16.7 147
SANDSTONE RS 8150 7.4 5.7 130 14.9 9.3 160
WHISKEY PARK 8950 -M 11.7 * 21.3 13.8 154
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Basin wide percent of average 141 148
UPPER GREEN RIVER
BIG SANDY OPENING 9080 8.0 7.2 111 8.7 6.8 128
BLIND BULL SUM 8650 14.4 13.7 105 11.0 11.6 95
EAST RIM DIVIDE 7930 7.0 6.2 113 6.9 6.0 115
ELKHART PARK G.S. 9400 6.6 6.5 102 7.3 6.9 106
GROS VENTRE SUMMIT 8750 8.7 7.2 121 8.5 6.6 129
GUNSIGHT PASS 9820 9.3 -M * 9.6 -M *
KENDALL R.S. 7740 6.6 7.0 94 8.5 7.2 118
LOOMIS PARK 8240 9.6 8.3 116 10.6 8.7 122
NEW FORK LAKE 8340 6.2 5.6 111 6.1 6.1 100
POCKET CREEK 9360 6.5 -M * 8.2 -M *
SNIDER BASIN 8060 10.1 7.2 140 10.7 8.3 129
SPRING CREEK DIVIDE 9000 16.4 13.0 126 17.0 13.7 124
TRIPLE PEAK 8500 14.7 12.3 120 16.6 11.7 142
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Basin wide percent of average 115 120
LOWER GREEN RIVER
HAMS FORK 7840 7.6 5.7 133 8.7 6.1 143
HEWINTA 9519 5.2 4.3 121 9.6 7.2 133
HICKERSON PARK 9145 2.8 3.0 93 4.7 4.3 109
HOLE-IN-ROCK 9150 3.4 2.8 121 5.5 3.9 141
INDIAN CREEK 9425 16.9 13.0 130 16.0 12.7 126
KELLEY R.S. 8180 11.2 7.9 142 13.7 10.5 130
STEEL CREEK PARK 10200 8.5 6.9 123 11.7 7.8 150
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Basin wide percent of average 128 133
UPPER BEAR RIVER
BUG LAKE 7950 15.5 8.8 176 17.2 9.5 181
HAYDEN FORK 9212 10.8 6.6 164 18.1 10.4 174
KELLEY R.S. 8180 11.2 7.9 142 13.7 10.5 130
LILY LAKE 9156 9.8 5.7 172 13.2 8.9 148
MONTE CRISTO 8960 18.5 11.7 158 20.9 12.6 166
SALT RIVER SUMMIT 7760 8.2 5.7 144 12.1 9.4 129
TRIAL LAKE 9992 21.1 11.0 192 -M 11.7 *
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Basin wide percent of average 166 155
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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.