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 THURSDAY: DECEMBER 8 , 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 5.7 5.0 114 9.5 7.1 134
COTTONWOOD CREEK 7600 6.4 5.8 110 9.6 9.2 104
GRANITE CREEK 6770 6.0 4.3 140 8.1 6.3 129
GRASSY LAKE 7265 10.2 9.2 111 -M 11.3 *
GROS VENTRE SUMMIT 8750 4.4 4.6 96 6.0 4.8 125
LEWIS LAKE DIVIDE 7850 10.1 9.3 109 -M 11.6 *
PHILLIPS BENCH 8200 8.7 7.9 110 10.7 8.8 122
SALT RIVER SUMMIT 7600 4.1 3.2 128 5.9 5.9 100
SNAKE RIVER STATION 6920 5.2 4.9 106 9.9 7.4 134
SPRING CREEK DIVIDE 9000 8.3 8.2 101 9.0 8.6 105
THUMB DIVIDE 7980 5.4 4.8 113 7.5 6.2 121
TOGWOTEE PASS 9580 9.7 8.1 120 10.2 8.4 121
TWO OCEAN PLATEAU 9240 14.8 9.5 156 12.3 9.4 131
WILLOW CREEK 8450 8.6 9.2 93 12.8 10.8 119
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Basin wide percent of average 114 120
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.5 8.1 117 7.8 6.8 115
BLACK BEAR 8170 15.1 11.4 132 16.2 12.1 134
CANYON 8090 5.5 3.8 145 7.5 5.5 136
FISHER CREEK 9100 15.1 10.9 139 14.7 11.4 129
MADISON PLATEAU 7750 8.2 7.3 112 11.4 8.4 136
NORTHEAST ENTRANCE 7350 3.0 3.1 97 5.3 4.5 118
PARKER PEAK 9400 7.1 7.6 93 7.4 6.1 121
SYLVAN LAKE 8420 5.8 7.4 78 9.4 8.0 118
THUMB DIVIDE 7980 5.4 4.8 113 7.5 6.2 121
TWO OCEAN PLATEAU 9240 14.8 9.5 156 12.3 9.4 131
WHISKEY CREEK 6800 4.2 4.7 89 9.1 6.8 134
WHITE MILL 8700 8.8 7.8 113 8.6 8.9 97
WOLVERINE 7650 3.9 3.6 108 4.0 5.1 78
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Basin wide percent of average 118 122
WIND RIVER
BURROUGHS CREEK 8750 5.5 4.5 122 7.0 5.6 125
COLD SPRINGS 9630 1.6 3.5 46 4.1 4.5 91
DEER PARK 9700 5.2 5.0 104 6.9 8.0 86
HOBBS PARK 10100 3.2 5.9 54 4.5 5.0 90
LITTLE WARM 9370 3.6 3.8 95 5.6 5.1 110
SOUTH PASS 9040 4.8 5.8 83 6.4 6.7 96
ST. LAWRENCE ALT 8620 .4 3.0 13 2.8 3.7 76
TOGWOTEE PASS 9580 9.7 8.1 120 10.2 8.4 121
TOWNSEND CREEK 8700 1.5 3.4 44 4.9 4.8 102
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Basin wide percent of average 83 101
BIGHORN BASIN
BALD MTN. 9380 6.0 6.8 88 4.7 6.0 78
BEAR TRAP MEADOW 8200 1.7 1.8 94 4.0 3.6 111
BLACKWATER 9780 8.9 8.8 101 7.9 8.0 99
BONE SPRINGS DIV 9350 6.1 5.8 105 5.8 5.4 107
EVENING STAR 9200 8.5 9.8 87 11.4 9.3 123
GRAVE SPRINGS 8550 2.6 2.9 90 5.2 3.9 133
KIRWIN 9550 5.3 4.7 113 5.5 4.5 122
MARQUETTE 8760 1.0 4.0 25 3.8 4.4 86
MIDDLE POWDER 7760 4.4 4.0 110 5.4 5.3 102
OWL CREEK 8975 .8 2.1 38 2.8 2.4 117
POWDER RIVER PASS 9480 3.5 3.8 92 5.0 4.5 111
SHELL CREEK 9580 5.2 5.5 95 5.4 5.0 108
SYLVAN LAKE 8420 5.8 7.4 78 9.4 8.0 118
SYLVAN ROAD 7120 3.3 4.2 79 7.6 7.4 103
TIMBER CREEK 7950 .7 2.5 28 3.4 3.2 106
YOUNTS PEAK 8350 6.1 5.5 111 8.7 5.9 147
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Basin wide percent of average 88 111
SHOSHONE RIVER
BLACKWATER 9780 8.9 8.8 101 7.9 8.0 99
EVENING STAR 9200 8.5 9.8 87 11.4 9.3 123
KIRWIN 9550 5.3 4.7 113 5.5 4.5 122
MARQUETTE 8760 1.0 4.0 25 3.8 4.4 86
SYLVAN LAKE 8420 5.8 7.4 78 9.4 8.0 118
SYLVAN ROAD 7120 3.3 4.2 79 7.6 7.4 103
YOUNTS PEAK 8350 6.1 5.5 111 8.7 5.9 147
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Basin wide percent of average 88 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.7 1.8 94 4.0 3.6 111
BIG GOOSE 7990 2.1 2.8 75 4.2 3.3 127
BONE SPRINGS DIV 9350 6.1 5.8 105 5.8 5.4 107
BURGESS JUNCTION 7880 4.0 4.0 100 5.6 4.6 122
CLOUD PEAK RESERVOIR 9860 4.3 4.2 102 4.7 5.2 90
DOME LAKE 8880 4.2 4.5 93 5.6 5.4 104
GRAVE SPRINGS 8550 2.6 2.9 90 5.2 3.9 133
HANSEN SAWMILL 8360 1.3 2.3 57 3.1 3.4 91
MIDDLE POWDER 7760 4.4 4.0 110 5.4 5.3 102
POWDER RIVER PASS 9480 3.5 3.8 92 5.0 4.5 111
SUCKER CREEK 8880 3.6 3.6 100 6.0 5.0 120
TIE CREEK 6870 2.1 1.4 150 5.5 4.0 138
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Basin wide percent of average 97 112
BELLE FOURCHE
BLIND PARK 6890 1.7 2.2 77 3.8 4.9 78
COLE CANYON 5910 1.4 2.1 67 4.1 -M *
NORTH RAPID CREEK 6130 1.8 2.0 90 3.0 4.1 73
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Basin wide percent of average 78 76
UPPER N. PLATTE RIVER
COLUMBINE 9160 10.0 6.0 167 13.3 7.6 175
DIVIDE PEAK 8860 5.8 6.0 97 9.2 7.1 130
ELK RIVER 8700 5.0 4.0 125 8.0 6.0 133
JOE WRIGHT 10120 8.9 7.0 127 11.9 8.6 138
NORTH FRENCH CREEK 10130 10.9 9.1 120 11.9 8.5 140
OLD BATTLE 9920 12.6 10.4 121 15.4 10.8 143
SAGE CREEK BASIN 7850 3.2 3.5 91 6.1 4.1 149
SOUTH BRUSH CREEK 8440 4.3 3.4 126 7.5 5.8 129
TOWER 10500 17.4 14.4 121 20.0 12.2 164
WEBBER SPRINGS 9250 8.7 7.8 112 13.5 9.0 150
WILLOW CREEK PASS 9540 4.6 4.0 115 6.4 4.9 131
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Basin wide percent of average 121 146
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 8.3 7.0 119 6.4 7.1 90
CASPER MTN. 7850 3.7 5.2 71 6.6 5.7 116
DEADMAN HILL 10220 6.1 5.6 109 8.2 5.9 139
DEER PARK 9700 5.2 5.0 104 6.9 8.0 86
LAPRELE CREEK 8375 1.8 3.7 49 3.3 4.7 70
RENO HILL 8500 4.7 4.8 98 6.1 5.6 109
ROACH 9700 5.9 4.9 120 8.5 5.9 144
SAND LAKE 10050 12.4 10.6 117 12.7 8.2 155
SOUTH PASS 9040 4.8 5.8 83 6.4 6.7 96
WINDY PEAK 7900 1.5 2.6 58 3.7 4.1 90
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Basin wide percent of average 99 111
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.2 2.2 191 6.9 5.0 138
DIVIDE PEAK 8860 5.8 6.0 97 9.2 7.1 130
OLD BATTLE 9920 12.6 10.4 121 15.4 10.8 143
SANDSTONE RS 8150 4.4 3.0 147 9.0 6.3 143
WHISKEY PARK 8950 9.7 7.1 137 13.0 9.0 144
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Basin wide percent of average 128 140
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.2 4.7 68 4.0 4.8 83
BLIND BULL SUM 8900 7.3 8.5 86 7.1 7.5 95
EAST RIM DIVIDE 7930 3.3 3.8 87 -M 4.0 *
ELKHART PARK G.S. 9400 4.3 4.2 102 5.1 4.9 104
GROS VENTRE SUMMIT 8750 4.4 4.6 96 6.0 4.8 125
KENDALL R.S. 7740 3.7 4.0 92 5.9 4.7 126
LOOMIS PARK 8240 5.4 5.2 104 6.4 5.7 112
NEW FORK LAKE 8340 3.2 3.4 94 3.5 4.3 81
SNIDER BASIN 8060 5.0 4.4 114 5.4 5.3 102
SPRING CREEK DIVIDE 9000 8.3 8.2 101 9.0 8.6 105
TRIPLE PEAK 8500 8.5 7.6 112 10.0 7.6 132
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Basin wide percent of average 97 107
LOWER GREEN RIVER
HAMS FORK 7840 3.1 3.1 100 4.2 4.0 105
HEWINTA 9500 3.9 2.5 156 6.5 5.4 120
HICKERSON PARK 9100 .2 1.8 11 3.2 3.4 94
HOLE-IN-ROCK 9150 3.0 1.8 167 3.8 3.2 119
INDIAN CREEK 9425 8.5 8.1 105 8.0 8.2 98
KELLEY R.S. 8180 4.5 5.0 90 6.3 6.7 94
STEEL CREEK PARK 10100 5.0 4.6 109 6.8 5.7 119
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Basin wide percent of average 105 106
UPPER BEAR RIVER
BUG LAKE 7950 5.6 4.9 114 6.8 6.5 105
HAYDEN FORK 9100 6.5 3.8 171 8.7 7.0 124
KELLEY R.S. 8180 4.5 5.0 90 6.3 6.7 94
LILY LAKE 9050 4.8 3.5 137 6.5 6.4 102
MONTE CRISTO 8960 8.0 6.4 125 9.6 8.4 114
SALT RIVER SUMMIT 7600 4.1 3.2 128 5.9 5.9 100
TRIAL LAKE 9960 8.7 6.7 130 9.9 7.7 129
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Basin wide percent of average 126 110
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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.