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 SUNDAY: DECEMBER 4 , 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 5.6 4.5 124 9.1 6.5 140
COTTONWOOD CREEK 7600 5.7 5.2 110 9.0 8.5 106
GRANITE CREEK 6770 5.8 3.8 153 7.9 5.8 136
GRASSY LAKE 7265 9.4 8.4 112 13.7 10.3 133
GROS VENTRE SUMMIT 8750 4.4 4.2 105 5.6 4.5 124
LEWIS LAKE DIVIDE 7850 10.2 8.4 121 13.7 10.6 129
PHILLIPS BENCH 8200 8.3 7.0 119 10.4 8.0 130
SALT RIVER SUMMIT 7600 3.8 2.9 131 5.6 5.4 104
SNAKE RIVER STATION 6920 5.0 4.4 114 9.4 6.8 138
SPRING CREEK DIVIDE 9000 7.7 7.4 104 8.4 7.9 106
THUMB DIVIDE 7980 5.5 4.3 128 7.7 5.8 133
TOGWOTEE PASS 9580 9.0 7.5 120 9.2 7.8 118
TWO OCEAN PLATEAU 9240 14.4 8.8 164 12.1 8.7 139
WILLOW CREEK 8450 7.7 8.3 93 12.0 10.0 120
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Basin wide percent of average 120 126
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.0 7.5 120 7.3 6.3 116
BLACK BEAR 8170 14.7 10.4 141 15.5 11.2 138
CANYON 8090 5.0 3.5 143 7.0 5.1 137
FISHER CREEK 9100 14.4 9.9 145 14.2 10.5 135
MADISON PLATEAU 7750 8.0 6.6 121 11.3 7.7 147
NORTHEAST ENTRANCE 7350 2.7 2.8 96 5.0 4.2 119
PARKER PEAK 9400 6.7 7.1 94 6.8 5.8 117
SYLVAN LAKE 8420 5.7 6.8 84 9.2 7.5 123
THUMB DIVIDE 7980 5.5 4.3 128 7.7 5.8 133
TWO OCEAN PLATEAU 9240 14.4 8.8 164 12.1 8.7 139
WHISKEY CREEK 6800 4.3 4.2 102 8.7 6.3 138
WHITE MILL 8700 8.2 7.1 115 8.5 8.2 104
WOLVERINE 7650 3.0 3.3 91 3.7 4.7 79
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Basin wide percent of average 123 127
WIND RIVER
BURROUGHS CREEK 8750 -M 4.1 * 6.4 5.2 123
COLD SPRINGS 9630 1.5 3.3 45 3.9 4.3 91
DEER PARK 9700 5.1 4.7 109 6.8 7.5 91
HOBBS PARK 10100 3.2 5.6 57 4.5 4.8 94
LITTLE WARM 9370 3.1 3.6 86 5.0 4.8 104
SOUTH PASS 9040 4.6 5.3 87 6.3 6.3 100
ST. LAWRENCE ALT 8620 .4 2.8 14 2.7 3.6 75
TOGWOTEE PASS 9580 9.0 7.5 120 9.2 7.8 118
TOWNSEND CREEK 8700 1.7 3.1 55 4.6 4.6 100
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Basin wide percent of average 80 101
BIGHORN BASIN
BALD MTN. 9380 4.9 6.3 78 4.0 5.6 71
BEAR TRAP MEADOW 8200 1.3 1.7 76 3.7 3.5 106
BLACKWATER 9780 8.6 8.2 105 7.4 7.5 99
BONE SPRINGS DIV 9350 5.3 5.5 96 5.2 5.1 102
EVENING STAR 9200 7.9 9.1 87 10.4 8.7 120
GRAVE SPRINGS 8550 2.4 2.8 86 4.8 3.7 130
KIRWIN 9550 5.1 4.4 116 5.3 4.3 123
MARQUETTE 8760 1.2 3.9 31 3.6 4.2 86
MIDDLE POWDER 7760 4.1 3.7 111 4.8 5.1 94
OWL CREEK 8975 .6 2.0 30 2.5 2.3 109
POWDER RIVER PASS 9480 2.5 3.5 71 4.0 4.3 93
SHELL CREEK 9580 4.4 5.3 83 4.5 4.7 96
SYLVAN LAKE 8420 5.7 6.8 84 9.2 7.5 123
SYLVAN ROAD 7120 3.2 3.8 84 7.2 6.9 104
TIMBER CREEK 7950 .8 2.4 33 3.3 3.1 106
YOUNTS PEAK 8350 -M 5.0 * 8.4 5.5 153
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Basin wide percent of average 84 108
SHOSHONE RIVER
BLACKWATER 9780 8.6 8.2 105 7.4 7.5 99
EVENING STAR 9200 7.9 9.1 87 10.4 8.7 120
KIRWIN 9550 5.1 4.4 116 5.3 4.3 123
MARQUETTE 8760 1.2 3.9 31 3.6 4.2 86
SYLVAN LAKE 8420 5.7 6.8 84 9.2 7.5 123
SYLVAN ROAD 7120 3.2 3.8 84 7.2 6.9 104
YOUNTS PEAK 8350 -M 5.0 * 8.4 5.5 153
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Basin wide percent of average 88 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.3 1.7 76 3.7 3.5 106
BIG GOOSE 7990 1.9 2.5 76 4.0 3.1 129
BONE SPRINGS DIV 9350 5.3 5.5 96 5.2 5.1 102
BURGESS JUNCTION 7880 3.7 3.7 100 5.3 4.4 120
CLOUD PEAK RESERVOIR 9860 3.9 4.0 98 4.8 5.0 96
DOME LAKE 8880 4.0 4.3 93 5.1 5.1 100
GRAVE SPRINGS 8550 2.4 2.8 86 4.8 3.7 130
HANSEN SAWMILL 8360 1.2 2.1 57 3.0 3.3 91
MIDDLE POWDER 7760 4.1 3.7 111 4.8 5.1 94
POWDER RIVER PASS 9480 2.5 3.5 71 4.0 4.3 93
SUCKER CREEK 8880 3.2 3.4 94 5.5 4.7 117
TIE CREEK 6870 1.9 1.3 146 5.2 3.8 137
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Basin wide percent of average 92 108
BELLE FOURCHE
BLIND PARK 6890 1.5 2.1 71 3.2 4.7 68
COLE CANYON 5910 1.2 2.0 60 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 69 71
UPPER N. PLATTE RIVER
COLUMBINE 9160 8.8 5.5 160 12.0 6.9 174
DIVIDE PEAK 8860 4.9 5.5 89 8.5 6.6 129
ELK RIVER 8700 4.1 3.5 117 7.2 5.6 129
JOE WRIGHT 10120 8.7 6.6 132 11.3 8.1 140
NORTH FRENCH CREEK 10130 10.1 8.4 120 11.3 7.9 143
OLD BATTLE 9920 11.7 9.6 122 14.7 9.9 148
SAGE CREEK BASIN 7850 2.9 3.2 91 5.8 3.8 153
SOUTH BRUSH CREEK 8440 4.1 3.1 132 7.5 5.5 136
TOWER 10500 15.8 13.4 118 18.4 11.3 163
WEBBER SPRINGS 9250 -M 7.1 * -M 8.3 *
WILLOW CREEK PASS 9540 4.6 3.8 121 6.2 4.6 135
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Basin wide percent of average 121 147
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 7.4 6.5 114 5.6 6.6 85
CASPER MTN. 7850 3.5 4.8 73 6.5 5.4 120
DEADMAN HILL 10220 5.6 5.3 106 7.5 5.6 134
DEER PARK 9700 5.1 4.7 109 6.8 7.5 91
LAPRELE CREEK 8375 1.7 3.4 50 3.0 4.5 67
RENO HILL 8500 4.3 4.5 96 5.9 5.3 111
ROACH 9700 5.3 4.6 115 7.8 5.5 142
SAND LAKE 10050 11.4 9.8 116 11.7 7.6 154
SOUTH PASS 9040 4.6 5.3 87 6.3 6.3 100
WINDY PEAK 7900 1.1 2.4 46 3.2 3.9 82
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Basin wide percent of average 97 110
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.9 2.0 195 6.7 4.7 143
DIVIDE PEAK 8860 4.9 5.5 89 8.5 6.6 129
OLD BATTLE 9920 11.7 9.6 122 14.7 9.9 148
SANDSTONE RS 8150 4.1 2.6 158 8.5 5.8 147
WHISKEY PARK 8950 8.2 6.5 126 11.7 8.3 141
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Basin wide percent of average 125 142
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.0 4.3 70 4.0 4.5 89
BLIND BULL SUM 8900 7.2 7.7 94 6.9 6.9 100
EAST RIM DIVIDE 7930 2.9 3.5 83 3.8 3.7 103
ELKHART PARK G.S. 9400 4.1 3.8 108 5.1 4.6 111
GROS VENTRE SUMMIT 8750 4.4 4.2 105 5.6 4.5 124
KENDALL R.S. 7740 4.0 3.5 114 5.5 4.4 125
LOOMIS PARK 8240 5.1 4.8 106 6.0 5.2 115
NEW FORK LAKE 8340 2.9 3.1 94 3.3 4.0 82
SNIDER BASIN 8060 4.7 3.9 121 5.0 4.8 104
SPRING CREEK DIVIDE 9000 7.7 7.4 104 8.4 7.9 106
TRIPLE PEAK 8500 7.9 6.9 114 9.5 7.0 136
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Basin wide percent of average 102 110
LOWER GREEN RIVER
HAMS FORK 7840 2.9 2.8 104 3.9 3.7 105
HEWINTA 9500 3.4 2.4 142 5.8 5.1 114
HICKERSON PARK 9100 .5 1.6 31 3.0 3.3 91
HOLE-IN-ROCK 9150 2.9 1.6 181 3.5 3.1 113
INDIAN CREEK 9425 7.8 7.3 107 7.6 7.5 101
KELLEY R.S. 8180 4.3 4.5 96 5.9 6.1 97
STEEL CREEK PARK 10100 4.6 4.3 107 6.1 5.4 113
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Basin wide percent of average 108 105
UPPER BEAR RIVER
BUG LAKE 7950 5.4 4.5 120 6.4 6.0 107
HAYDEN FORK 9100 5.5 3.4 162 7.7 6.5 118
KELLEY R.S. 8180 4.3 4.5 96 5.9 6.1 97
LILY LAKE 9050 4.2 3.1 135 5.8 6.0 97
MONTE CRISTO 8960 7.4 5.7 130 8.5 7.8 109
SALT RIVER SUMMIT 7600 3.8 2.9 131 5.6 5.4 104
TRIAL LAKE 9960 8.3 6.0 138 9.0 7.1 127
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Basin wide percent of average 129 109
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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.