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: DECEMBER 3 , 2005
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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 5.3 4.4 120 8.8 6.4 138
COTTONWOOD CREEK 7600 5.3 5.0 106 8.6 8.4 102
GRANITE CREEK 6770 5.6 3.7 151 7.7 5.7 135
GRASSY LAKE 7265 8.5 8.1 105 12.8 10.1 127
GROS VENTRE SUMMIT 8750 4.3 4.1 105 -M 4.4 *
LEWIS LAKE DIVIDE 7850 10.0 8.2 122 13.4 10.4 129
PHILLIPS BENCH 8200 8.0 6.8 118 10.0 7.8 128
SALT RIVER SUMMIT 7600 3.6 2.8 129 5.4 5.3 102
SNAKE RIVER STATION 6920 4.6 4.3 107 9.1 6.7 136
SPRING CREEK DIVIDE 9000 7.3 7.2 101 8.0 7.7 104
THUMB DIVIDE 7980 5.4 4.2 129 7.7 5.6 138
TOGWOTEE PASS 9580 8.8 7.3 121 9.2 7.6 121
TWO OCEAN PLATEAU 9240 14.1 8.6 164 11.8 8.5 139
WILLOW CREEK 8450 7.2 8.1 89 11.5 9.8 117
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Basin wide percent of average 118 124
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 8.9 7.3 122 7.2 6.2 116
BLACK BEAR 8170 14.4 10.1 143 15.3 11.0 139
CANYON 8090 5.0 3.4 147 6.9 5.0 138
FISHER CREEK 9100 14.3 9.6 149 14.1 10.3 137
MADISON PLATEAU 7750 7.9 6.5 122 11.1 7.5 148
NORTHEAST ENTRANCE 7350 2.6 2.7 96 5.0 4.2 119
PARKER PEAK 9400 6.7 7.0 96 6.8 5.7 119
SYLVAN LAKE 8420 5.6 6.7 84 9.1 7.4 123
THUMB DIVIDE 7980 5.4 4.2 129 7.7 5.6 138
TWO OCEAN PLATEAU 9240 14.1 8.6 164 11.8 8.5 139
WHISKEY CREEK 6800 4.3 4.1 105 8.5 6.2 137
WHITE MILL 8700 8.1 6.9 117 8.4 8.0 105
WOLVERINE 7650 2.9 3.2 91 3.6 4.7 77
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Basin wide percent of average 125 128
WIND RIVER
BURROUGHS CREEK 8750 -M 4.0 * 6.2 5.1 122
COLD SPRINGS 9630 1.5 3.2 47 3.9 4.3 91
DEER PARK 9700 5.1 4.7 109 6.8 7.3 93
HOBBS PARK 10100 3.2 5.5 58 4.5 4.7 96
LITTLE WARM 9370 3.1 3.5 89 4.9 4.7 104
SOUTH PASS 9040 4.7 5.2 90 6.3 6.2 102
ST. LAWRENCE ALT 8620 .4 2.8 14 2.7 3.6 75
TOGWOTEE PASS 9580 8.8 7.3 121 9.2 7.6 121
TOWNSEND CREEK 8700 1.8 3.1 58 4.5 4.6 98
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Basin wide percent of average 81 102
BIGHORN BASIN
BALD MTN. 9380 4.6 6.2 74 3.9 5.5 71
BEAR TRAP MEADOW 8200 1.3 1.7 76 3.7 3.5 106
BLACKWATER 9780 8.4 8.1 104 7.1 7.4 96
BONE SPRINGS DIV 9350 5.2 5.5 95 5.1 5.1 100
EVENING STAR 9200 7.6 8.9 85 10.2 8.5 120
GRAVE SPRINGS 8550 2.4 2.8 86 4.8 3.7 130
KIRWIN 9550 5.1 4.3 119 5.3 4.2 126
MARQUETTE 8760 1.2 3.9 31 3.5 4.2 83
MIDDLE POWDER 7760 4.1 3.7 111 4.8 5.0 96
OWL CREEK 8975 .7 2.0 35 2.5 2.2 114
POWDER RIVER PASS 9480 2.4 3.4 71 4.0 4.2 95
SHELL CREEK 9580 4.4 5.2 85 4.4 4.6 96
SYLVAN LAKE 8420 5.6 6.7 84 9.1 7.4 123
SYLVAN ROAD 7120 3.0 3.7 81 7.0 6.8 103
TIMBER CREEK 7950 .9 2.3 39 3.2 3.0 107
YOUNTS PEAK 8350 -M 4.9 * 8.4 5.4 156
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Basin wide percent of average 83 108
SHOSHONE RIVER
BLACKWATER 9780 8.4 8.1 104 7.1 7.4 96
EVENING STAR 9200 7.6 8.9 85 10.2 8.5 120
KIRWIN 9550 5.1 4.3 119 5.3 4.2 126
MARQUETTE 8760 1.2 3.9 31 3.5 4.2 83
SYLVAN LAKE 8420 5.6 6.7 84 9.1 7.4 123
SYLVAN ROAD 7120 3.0 3.7 81 7.0 6.8 103
YOUNTS PEAK 8350 -M 4.9 * 8.4 5.4 156
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Basin wide percent of average 87 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.3 1.7 76 3.7 3.5 106
BIG GOOSE 7990 2.0 2.4 83 4.1 3.1 132
BONE SPRINGS DIV 9350 5.2 5.5 95 5.1 5.1 100
BURGESS JUNCTION 7880 3.6 3.6 100 5.2 4.3 121
CLOUD PEAK RESERVOIR 9860 3.9 3.9 100 4.9 5.0 98
DOME LAKE 8880 4.0 4.2 95 5.1 5.0 102
GRAVE SPRINGS 8550 2.4 2.8 86 4.8 3.7 130
HANSEN SAWMILL 8360 1.3 2.1 62 3.1 3.3 94
MIDDLE POWDER 7760 4.1 3.7 111 4.8 5.0 96
POWDER RIVER PASS 9480 2.4 3.4 71 4.0 4.2 95
SUCKER CREEK 8880 3.2 3.3 97 5.5 4.6 120
TIE CREEK 6870 1.8 1.2 150 5.1 3.8 134
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Basin wide percent of average 93 109
BELLE FOURCHE
BLIND PARK 6890 1.6 2.1 76 3.3 4.6 72
COLE CANYON 5910 1.3 2.0 65 3.5 -M *
NORTH RAPID CREEK 6130 1.4 1.8 78 2.9 3.9 74
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Basin wide percent of average 73 73
UPPER N. PLATTE RIVER
COLUMBINE 9160 8.5 5.3 160 12.1 6.7 181
DIVIDE PEAK 8860 4.9 5.4 91 8.5 6.4 133
ELK RIVER 8700 3.9 3.3 118 7.2 5.4 133
JOE WRIGHT 10120 8.5 6.5 131 11.2 8.0 140
NORTH FRENCH CREEK 10130 10.0 8.2 122 11.3 7.8 145
OLD BATTLE 9920 11.5 9.4 122 14.6 9.7 151
SAGE CREEK BASIN 7850 2.9 3.1 94 5.7 3.7 154
SOUTH BRUSH CREEK 8440 4.2 3.0 140 7.5 5.4 139
TOWER 10500 15.3 13.1 117 18.0 11.1 162
WEBBER SPRINGS 9250 -M 6.9 * -M 8.1 *
WILLOW CREEK PASS 9540 4.9 3.7 132 6.2 4.5 138
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Basin wide percent of average 122 149
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 7.4 6.3 117 5.6 6.5 86
CASPER MTN. 7850 3.7 4.8 77 6.7 5.3 126
DEADMAN HILL 10220 5.8 5.2 112 7.5 5.5 136
DEER PARK 9700 5.1 4.7 109 6.8 7.3 93
LAPRELE CREEK 8375 1.8 3.3 55 3.1 4.4 70
RENO HILL 8500 4.4 4.5 98 6.0 5.2 115
ROACH 9700 5.3 4.5 118 7.9 5.4 146
SAND LAKE 10050 11.3 9.6 118 11.6 7.5 155
SOUTH PASS 9040 4.7 5.2 90 6.3 6.2 102
WINDY PEAK 7900 1.2 2.4 50 3.2 3.8 84
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Basin wide percent of average 100 113
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.9 2.0 195 6.7 4.6 146
DIVIDE PEAK 8860 4.9 5.4 91 8.5 6.4 133
OLD BATTLE 9920 11.5 9.4 122 14.6 9.7 151
SANDSTONE RS 8150 4.1 2.6 158 8.3 5.7 146
WHISKEY PARK 8950 7.8 6.4 122 11.5 8.1 142
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Basin wide percent of average 125 144
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.9 4.2 69 3.9 4.4 89
BLIND BULL SUM 8900 6.9 7.5 92 6.7 6.7 100
EAST RIM DIVIDE 7930 2.9 3.4 85 3.7 3.6 103
ELKHART PARK G.S. 9400 4.0 3.7 108 5.0 4.5 111
GROS VENTRE SUMMIT 8750 4.3 4.1 105 -M 4.4 *
KENDALL R.S. 7740 3.8 3.4 112 5.3 4.3 123
LOOMIS PARK 8240 5.0 4.6 109 5.8 5.1 114
NEW FORK LAKE 8340 2.8 3.0 93 3.2 3.9 82
SNIDER BASIN 8060 4.4 3.8 116 4.8 4.7 102
SPRING CREEK DIVIDE 9000 7.3 7.2 101 8.0 7.7 104
TRIPLE PEAK 8500 7.3 6.7 109 8.9 6.8 131
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Basin wide percent of average 100 107
LOWER GREEN RIVER
HAMS FORK 7840 2.7 2.7 100 3.8 3.6 106
HEWINTA 9500 2.9 2.3 126 5.4 5.0 108
HICKERSON PARK 9100 .6 1.6 37 2.9 3.3 88
HOLE-IN-ROCK 9150 2.7 1.6 169 3.3 3.1 106
INDIAN CREEK 9425 7.6 7.1 107 7.4 7.3 101
KELLEY R.S. 8180 4.1 4.4 93 5.7 6.0 95
STEEL CREEK PARK 10100 4.2 4.2 100 5.8 5.4 107
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Basin wide percent of average 104 102
UPPER BEAR RIVER
BUG LAKE 7950 5.1 4.3 119 6.2 5.9 105
HAYDEN FORK 9100 5.2 3.3 158 7.4 6.4 116
KELLEY R.S. 8180 4.1 4.4 93 5.7 6.0 95
LILY LAKE 9050 3.9 3.1 126 5.5 5.9 93
MONTE CRISTO 8960 7.0 5.5 127 8.4 7.6 111
SALT RIVER SUMMIT 7600 3.6 2.8 129 5.4 5.3 102
TRIAL LAKE 9960 8.1 5.9 137 8.7 7.0 124
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Basin wide percent of average 126 107
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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.