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: DECEMBER 6 , 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 5.8 4.7 123 9.4 6.8 138
COTTONWOOD CREEK 7600 6.2 5.5 113 9.5 8.9 107
GRANITE CREEK 6770 6.0 4.1 146 8.1 6.1 133
GRASSY LAKE 7265 10.2 8.8 116 14.5 10.8 134
GROS VENTRE SUMMIT 8750 4.5 4.4 102 5.6 4.6 122
LEWIS LAKE DIVIDE 7850 10.3 8.8 117 14.0 11.1 126
PHILLIPS BENCH 8200 8.7 7.4 118 10.7 8.4 127
SALT RIVER SUMMIT 7600 4.0 3.1 129 5.9 5.6 105
SNAKE RIVER STATION 6920 5.3 4.6 115 9.9 7.1 139
SPRING CREEK DIVIDE 9000 8.1 7.8 104 8.8 8.2 107
THUMB DIVIDE 7980 5.5 4.6 120 7.8 6.0 130
TOGWOTEE PASS 9580 9.7 7.8 124 10.2 8.1 126
TWO OCEAN PLATEAU 9240 14.9 9.2 162 12.3 9.1 135
WILLOW CREEK 8450 8.2 8.8 93 12.6 10.4 121
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Basin wide percent of average 120 125
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.5 7.8 122 7.8 6.6 118
BLACK BEAR 8170 15.2 10.9 139 15.9 11.6 137
CANYON 8090 5.3 3.7 143 7.3 5.3 138
FISHER CREEK 9100 15.2 10.4 146 14.9 11.0 135
MADISON PLATEAU 7750 8.3 7.0 119 11.5 8.0 144
NORTHEAST ENTRANCE 7350 3.1 2.9 107 5.4 4.4 123
PARKER PEAK 9400 7.2 7.3 99 7.3 5.9 124
SYLVAN LAKE 8420 6.0 7.1 85 9.5 7.7 123
THUMB DIVIDE 7980 5.5 4.6 120 7.8 6.0 130
TWO OCEAN PLATEAU 9240 14.9 9.2 162 12.3 9.1 135
WHISKEY CREEK 6800 4.5 4.4 102 8.9 6.5 137
WHITE MILL 8700 8.6 7.4 116 8.9 8.5 105
WOLVERINE 7650 3.9 3.4 115 3.9 4.9 80
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Basin wide percent of average 125 127
WIND RIVER
BURROUGHS CREEK 8750 5.3 4.3 123 6.8 5.4 126
COLD SPRINGS 9630 1.6 3.4 47 4.0 4.4 91
DEER PARK 9700 5.1 4.9 104 6.9 7.7 90
HOBBS PARK 10100 3.2 5.8 55 4.6 4.9 94
LITTLE WARM 9370 3.4 3.7 92 5.3 4.9 108
SOUTH PASS 9040 4.8 5.6 86 6.4 6.5 98
ST. LAWRENCE ALT 8620 .5 2.9 17 2.7 3.7 73
TOGWOTEE PASS 9580 9.7 7.8 124 10.2 8.1 126
TOWNSEND CREEK 8700 1.8 3.2 56 4.7 4.7 100
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Basin wide percent of average 85 103
BIGHORN BASIN
BALD MTN. 9380 5.9 6.5 91 4.7 5.8 81
BEAR TRAP MEADOW 8200 1.7 1.8 94 4.0 3.6 111
BLACKWATER 9780 8.9 8.6 103 7.8 7.8 100
BONE SPRINGS DIV 9350 6.0 5.7 105 5.9 5.3 111
EVENING STAR 9200 8.5 9.4 90 11.2 9.0 124
GRAVE SPRINGS 8550 2.6 2.8 93 5.0 3.8 132
KIRWIN 9550 5.3 4.5 118 5.5 4.4 125
MARQUETTE 8760 .9 4.0 22 3.7 4.3 86
MIDDLE POWDER 7760 4.3 3.9 110 5.1 5.2 98
OWL CREEK 8975 .7 2.0 35 2.6 2.3 113
POWDER RIVER PASS 9480 3.3 3.6 92 4.8 4.4 109
SHELL CREEK 9580 5.1 5.4 94 5.2 4.9 106
SYLVAN LAKE 8420 6.0 7.1 85 9.5 7.7 123
SYLVAN ROAD 7120 3.5 4.0 88 7.6 7.2 106
TIMBER CREEK 7950 .9 2.4 38 3.2 3.1 103
YOUNTS PEAK 8350 6.1 5.2 117 8.7 5.7 153
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Basin wide percent of average 91 112
SHOSHONE RIVER
BLACKWATER 9780 8.9 8.6 103 7.8 7.8 100
EVENING STAR 9200 8.5 9.4 90 11.2 9.0 124
KIRWIN 9550 5.3 4.5 118 5.5 4.4 125
MARQUETTE 8760 .9 4.0 22 3.7 4.3 86
SYLVAN LAKE 8420 6.0 7.1 85 9.5 7.7 123
SYLVAN ROAD 7120 3.5 4.0 88 7.6 7.2 106
YOUNTS PEAK 8350 6.1 5.2 117 8.7 5.7 153
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Basin wide percent of average 92 117
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.7 1.8 94 4.0 3.6 111
BIG GOOSE 7990 2.1 2.7 78 4.2 3.2 131
BONE SPRINGS DIV 9350 6.0 5.7 105 5.9 5.3 111
BURGESS JUNCTION 7880 4.0 3.8 105 5.5 4.5 122
CLOUD PEAK RESERVOIR 9860 4.4 4.1 107 5.0 5.1 98
DOME LAKE 8880 4.2 4.4 95 5.4 5.2 104
GRAVE SPRINGS 8550 2.6 2.8 93 5.0 3.8 132
HANSEN SAWMILL 8360 1.3 2.2 59 3.1 3.4 91
MIDDLE POWDER 7760 4.3 3.9 110 5.1 5.2 98
POWDER RIVER PASS 9480 3.3 3.6 92 4.8 4.4 109
SUCKER CREEK 8880 3.6 3.5 103 6.0 4.9 122
TIE CREEK 6870 2.2 1.3 169 5.5 3.9 141
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Basin wide percent of average 100 113
BELLE FOURCHE
BLIND PARK 6890 1.8 2.2 82 3.5 4.8 73
COLE CANYON 5910 1.4 2.1 67 3.8 -M *
NORTH RAPID CREEK 6130 1.7 2.0 85 3.0 4.0 75
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Basin wide percent of average 78 74
UPPER N. PLATTE RIVER
COLUMBINE 9160 9.4 5.8 162 12.4 7.2 172
DIVIDE PEAK 8860 5.3 5.7 93 8.8 6.8 129
ELK RIVER 8700 4.5 3.7 122 7.6 5.8 131
JOE WRIGHT 10120 8.5 6.8 125 11.5 8.4 137
NORTH FRENCH CREEK 10130 10.5 8.8 119 11.6 8.2 141
OLD BATTLE 9920 12.1 10.0 121 15.1 10.4 145
SAGE CREEK BASIN 7850 3.0 3.4 88 5.9 4.0 148
SOUTH BRUSH CREEK 8440 4.1 3.3 124 7.5 5.6 134
TOWER 10500 16.4 13.9 118 19.2 11.8 163
WEBBER SPRINGS 9250 -M 7.4 * -M 8.6 *
WILLOW CREEK PASS 9540 4.5 3.9 115 6.4 4.7 136
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Basin wide percent of average 120 145
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 8.0 6.8 118 6.0 6.8 88
CASPER MTN. 7850 3.7 5.0 74 6.7 5.5 122
DEADMAN HILL 10220 5.8 5.4 107 7.7 5.7 135
DEER PARK 9700 5.1 4.9 104 6.9 7.7 90
LAPRELE CREEK 8375 1.9 3.6 53 3.2 4.6 70
RENO HILL 8500 4.6 4.7 98 6.2 5.4 115
ROACH 9700 5.4 4.8 113 7.8 5.7 137
SAND LAKE 10050 12.0 10.2 118 12.3 7.9 156
SOUTH PASS 9040 4.8 5.6 86 6.4 6.5 98
WINDY PEAK 7900 1.6 2.5 64 3.4 4.0 85
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Basin wide percent of average 99 111
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.9 2.1 186 7.0 4.8 146
DIVIDE PEAK 8860 5.3 5.7 93 8.8 6.8 129
OLD BATTLE 9920 12.1 10.0 121 15.1 10.4 145
SANDSTONE RS 8150 4.2 2.8 150 8.7 6.0 145
WHISKEY PARK 8950 8.8 6.8 129 12.3 8.7 141
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Basin wide percent of average 125 141
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.2 4.5 71 4.2 4.7 89
BLIND BULL SUM 8900 7.5 8.1 93 7.1 7.2 99
EAST RIM DIVIDE 7930 3.1 3.7 84 4.0 3.9 103
ELKHART PARK G.S. 9400 4.3 4.0 108 5.2 4.8 108
GROS VENTRE SUMMIT 8750 4.5 4.4 102 5.6 4.6 122
KENDALL R.S. 7740 4.2 3.8 111 5.6 4.6 122
LOOMIS PARK 8240 5.5 5.0 110 6.4 5.4 119
NEW FORK LAKE 8340 3.1 3.2 97 3.5 4.1 85
SNIDER BASIN 8060 5.0 4.2 119 5.4 5.0 108
SPRING CREEK DIVIDE 9000 8.1 7.8 104 8.8 8.2 107
TRIPLE PEAK 8500 8.3 7.2 115 9.9 7.3 136
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Basin wide percent of average 102 110
LOWER GREEN RIVER
HAMS FORK 7840 3.1 3.0 103 4.1 3.9 105
HEWINTA 9500 3.6 2.5 144 6.2 5.2 119
HICKERSON PARK 9100 .7 1.7 41 2.8 3.4 82
HOLE-IN-ROCK 9150 2.9 1.7 171 3.6 3.1 116
INDIAN CREEK 9425 8.3 7.7 108 8.0 7.8 103
KELLEY R.S. 8180 4.7 4.8 98 6.3 6.4 98
STEEL CREEK PARK 10100 4.8 4.4 109 6.5 5.6 116
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Basin wide percent of average 109 106
UPPER BEAR RIVER
BUG LAKE 7950 5.6 4.7 119 6.7 6.3 106
HAYDEN FORK 9100 -M 3.6 * -M 6.7 *
KELLEY R.S. 8180 4.7 4.8 98 6.3 6.4 98
LILY LAKE 9050 4.4 3.3 133 6.1 6.2 98
MONTE CRISTO 8960 7.6 6.1 125 9.0 8.1 111
SALT RIVER SUMMIT 7600 4.0 3.1 129 5.9 5.6 105
TRIAL LAKE 9960 8.4 6.3 133 9.4 7.4 127
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Basin wide percent of average 123 108
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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.