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 SATURDAY: JANUARY 29 , 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 14.1 12.3 115 16.9 14.5 117
COTTONWOOD CREEK 7670 18.8 13.8 136 24.2 18.3 132
GRAND TARGHEE 9260 33.6 -M * 24.6 -M *
GRANITE CREEK 6770 13.7 11.9 115 16.0 13.4 119
GRASSY LAKE 7265 24.5 22.2 110 27.4 24.4 112
GROS VENTRE SUMMIT 8750 10.2 9.3 110 10.1 8.5 119
GUNSIGHT PASS 9820 11.6 -M * 11.8 -M *
LEWIS LAKE DIVIDE 7850 23.8 22.3 107 24.5 24.2 101
PHILLIPS BENCH 8200 20.9 18.0 116 22.1 19.0 116
SALT RIVER SUMMIT 7760 11.5 8.9 129 15.6 12.3 127
SNAKE RIVER STATION 6920 -M 12.2 * 17.9 15.2 118
SPRING CREEK DIVIDE 9000 24.1 16.9 143 23.5 17.9 131
THUMB DIVIDE 7980 13.9 11.4 122 14.0 12.4 113
TOGWOTEE PASS 9580 19.9 16.4 121 21.2 16.4 129
TWO OCEAN PLATEAU 9240 23.1 18.5 125 19.2 18.0 107
WILLOW CREEK 8380 22.9 19.7 116 28.0 21.3 131
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Basin wide percent of average 120 119
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 17.1 15.9 108 16.6 13.6 122
BLACK BEAR 8170 29.3 25.0 117 29.0 25.3 115
CANYON 7870 10.8 8.7 124 12.3 10.5 117
FISHER CREEK 9100 26.2 23.2 113 25.4 24.0 106
MADISON PLATEAU 7750 18.4 15.8 116 20.2 17.0 119
NORTHEAST ENTRANCE 7350 8.6 7.5 115 10.7 8.7 123
PARKER PEAK 9400 19.4 14.5 134 17.8 10.8 165
SYLVAN LAKE 8420 16.1 14.7 110 19.2 14.4 133
THUMB DIVIDE 7980 13.9 11.4 122 14.0 12.4 113
TWO OCEAN PLATEAU 9240 23.1 18.5 125 19.2 18.0 107
WHISKEY CREEK 6800 13.1 10.8 121 15.6 13.5 116
WHITE MILL 8700 18.1 15.7 115 18.9 17.8 106
WOLVERINE 7650 11.2 8.5 132 10.2 9.0 113
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Basin wide percent of average 118 117
WIND RIVER
BURROUGHS CREEK 8750 10.1 9.9 102 10.6 11.0 96
CASTLE CREEK 8400 4.2 -M * 4.9 -M *
COLD SPRINGS 9630 5.8 5.9 98 5.7 7.0 81
DEER PARK 9700 14.1 11.6 122 15.3 14.2 108
HOBBS PARK 10100 9.5 9.7 98 8.5 8.0 106
LITTLE WARM 9370 8.0 7.6 105 8.4 8.9 94
SOUTH PASS 9040 11.6 11.1 105 10.2 11.9 86
ST. LAWRENCE ALT 8620 3.7 4.7 79 4.5 5.6 80
TOGWOTEE PASS 9580 19.9 16.4 121 21.2 16.4 129
TOWNSEND CREEK 8700 5.5 5.5 100 7.4 7.2 103
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Basin wide percent of average 107 102
BIGHORN BASIN
BALD MTN. 9380 15.9 13.1 121 13.2 11.5 115
BEAR TRAP MEADOW 8200 5.5 3.4 162 5.9 5.4 109
BLACKWATER 9780 17.8 16.2 110 17.4 13.9 125
BONE SPRINGS DIV 9350 12.8 10.4 123 11.0 9.4 117
EVENING STAR 9200 22.2 19.3 115 24.6 17.2 143
GRAVE SPRINGS 8550 5.1 5.5 93 5.4 6.3 86
KIRWIN 9550 7.8 7.5 104 8.7 7.5 116
MARQUETTE 8760 1.9 5.8 33 4.4 6.1 72
MIDDLE POWDER 7760 6.4 7.0 91 4.1 8.2 50
OWL CREEK 8975 3.1 3.3 94 3.3 3.6 92
POWDER RIVER PASS 9480 9.9 7.1 139 11.7 8.1 144
SHELL CREEK 9580 11.6 9.7 120 10.4 9.1 114
SYLVAN LAKE 8420 16.1 14.7 110 19.2 14.4 133
SYLVAN ROAD 7120 10.8 8.6 126 14.2 13.0 109
TIMBER CREEK 7950 2.6 3.6 72 3.2 4.4 73
YOUNTS PEAK 8350 11.8 11.7 101 10.5 11.2 94
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Basin wide percent of average 110 112
SHOSHONE RIVER
BLACKWATER 9780 17.8 16.2 110 17.4 13.9 125
EVENING STAR 9200 22.2 19.3 115 24.6 17.2 143
KIRWIN 9550 7.8 7.5 104 8.7 7.5 116
MARQUETTE 8760 1.9 5.8 33 4.4 6.1 72
SYLVAN LAKE 8420 16.1 14.7 110 19.2 14.4 133
SYLVAN ROAD 7120 10.8 8.6 126 14.2 13.0 109
YOUNTS PEAK 8350 11.8 11.7 101 10.5 11.2 94
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Basin wide percent of average 105 119
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.5 3.4 162 5.9 5.4 109
BIG GOOSE 7990 5.0 5.8 86 6.6 5.5 120
BONE SPRINGS DIV 9350 12.8 10.4 123 11.0 9.4 117
BURGESS JUNCTION 7880 6.6 7.2 92 7.7 7.7 100
CLOUD PEAK RESERVOIR 9860 10.2 7.8 131 9.8 8.1 121
DOME LAKE 8880 7.4 7.8 95 8.6 8.5 101
GRAVE SPRINGS 8550 5.1 5.5 93 5.4 6.3 86
HANSEN SAWMILL 8360 4.6 4.1 112 4.9 5.2 94
LITTLE GOOSE 8870 5.9 -M * 9.7 -M *
MIDDLE POWDER 7760 6.4 7.0 91 4.1 8.2 50
POWDER RIVER PASS 9480 9.9 7.1 139 11.7 8.1 144
SOLDIER PARK 8720 4.5 -M * 5.9 -M *
SUCKER CREEK 8880 8.6 7.0 123 9.3 8.6 108
TIE CREEK 6870 4.3 3.9 110 6.4 6.7 96
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Basin wide percent of average 112 104
BELLE FOURCHE
BLIND PARK 6890 6.0 5.1 118 11.8 7.7 153
COLE CANYON 5910 5.5 4.4 125 8.2 4.6 178
NORTH RAPID CREEK 6130 5.8 4.8 121 9.9 6.2 160
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Basin wide percent of average 121 162
UPPER N. PLATTE RIVER
CINNABAR PARK 9574 18.1 12.9 140 21.4 14.1 152
COLUMBINE 9160 21.8 15.8 138 24.0 16.2 148
DIVIDE PEAK 8880 14.3 12.7 113 18.2 13.4 136
ELK RIVER 8700 15.9 11.8 135 18.1 12.4 146
JOE WRIGHT 10120 18.4 13.5 136 23.9 15.8 151
NORTH FRENCH CREEK 10130 29.2 18.0 162 27.8 16.0 174
OLD BATTLE 10000 29.0 19.5 149 26.8 21.8 123
SAGE CREEK BASIN 7850 12.4 7.4 168 13.0 7.8 167
SOUTH BRUSH CREEK 8440 11.4 7.2 158 14.8 10.6 140
TOWER 10500 37.2 29.2 127 35.5 24.8 143
WEBBER SPRINGS 9250 20.1 15.6 129 24.7 17.6 140
WILLOW CREEK PASS 9540 12.1 7.3 166 12.1 8.1 149
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Basin wide percent of average 140 146
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 20.4 14.9 137 21.2 13.9 153
CASPER MTN. 7900 7.5 8.8 85 9.9 8.7 114
DEADMAN HILL 10220 -M 10.3 * -M 10.3 *
DEER PARK 9700 14.1 11.6 122 15.3 14.2 108
LAPRELE CREEK 8375 8.0 7.1 113 9.1 8.0 114
RENO HILL 8400 9.2 8.3 111 11.1 9.2 121
ROACH 9700 13.5 10.6 127 16.8 11.4 147
SAND LAKE 10050 24.2 19.5 124 23.0 15.6 147
SOUTH PASS 9040 11.6 11.1 105 10.2 11.9 86
WINDY PEAK 7900 6.2 4.4 141 8.6 6.8 126
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Basin wide percent of average 119 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.5 7.5 60 10.2 9.7 105
DIVIDE PEAK 8880 14.3 12.7 113 18.2 13.4 136
OLD BATTLE 10000 29.0 19.5 149 26.8 21.8 123
SANDSTONE RS 8150 -M 9.3 * -M 12.2 *
WHISKEY PARK 8950 -M 17.9 * 27.0 18.9 143
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Basin wide percent of average 120 129
UPPER GREEN RIVER
BIG SANDY OPENING 9080 9.8 9.3 105 10.3 8.8 117
BLIND BULL SUM 8650 20.3 18.0 113 14.8 15.0 99
EAST RIM DIVIDE 7930 9.8 8.2 120 8.9 7.9 113
ELKHART PARK G.S. 9400 8.7 8.5 102 9.0 8.7 103
GROS VENTRE SUMMIT 8750 10.2 9.3 110 10.1 8.5 119
GUNSIGHT PASS 9820 11.6 -M * 11.8 -M *
KENDALL R.S. 7740 8.7 9.5 92 10.4 9.5 109
LOOMIS PARK 8240 12.8 10.9 117 13.7 11.5 119
NEW FORK LAKE 8340 8.3 7.4 112 7.9 7.7 103
POCKET CREEK 9360 7.7 -M * 9.8 -M *
SNIDER BASIN 8060 14.1 9.5 148 14.0 10.8 130
SPRING CREEK DIVIDE 9000 24.1 16.9 143 23.5 17.9 131
TRIPLE PEAK 8500 21.4 16.2 132 22.7 15.8 144
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Basin wide percent of average 120 119
LOWER GREEN RIVER
HAMS FORK 7840 11.2 8.1 138 11.4 8.2 139
HEWINTA 9519 7.5 6.4 117 11.4 9.1 125
HICKERSON PARK 9145 3.8 4.3 88 5.6 5.1 110
HOLE-IN-ROCK 9150 4.6 4.0 115 6.1 4.7 130
INDIAN CREEK 9425 22.1 17.1 129 20.3 16.4 124
KELLEY R.S. 8180 14.5 10.3 141 17.3 13.6 127
STEEL CREEK PARK 10200 11.0 9.1 121 13.9 9.9 140
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Basin wide percent of average 126 128
UPPER BEAR RIVER
BUG LAKE 7950 18.6 12.7 146 20.3 12.6 161
HAYDEN FORK 9212 13.8 9.5 145 20.7 13.3 156
KELLEY R.S. 8180 14.5 10.3 141 17.3 13.6 127
LILY LAKE 9156 12.3 7.9 156 15.1 11.2 135
MONTE CRISTO 8960 22.7 17.5 130 24.8 16.3 152
SALT RIVER SUMMIT 7760 11.5 8.9 129 15.6 12.3 127
TRIAL LAKE 9992 23.8 15.1 158 24.6 15.4 160
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Basin wide percent of average 143 146
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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.