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 25 , 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 6.8 7.3 93 10.5 9.4 112
COTTONWOOD CREEK 7600 8.3 8.5 98 11.6 12.3 94
GRANITE CREEK 6770 6.7 6.7 100 9.5 8.6 110
GRASSY LAKE 7265 12.7 13.1 97 17.4 15.6 112
GROS VENTRE SUMMIT 8750 5.2 6.2 84 6.2 5.9 105
LEWIS LAKE DIVIDE 7850 12.8 13.2 97 16.4 15.8 104
PHILLIPS BENCH 8200 10.5 11.2 94 12.5 12.1 103
SALT RIVER SUMMIT 7600 5.2 4.8 108 7.2 8.1 89
SNAKE RIVER STATION 6920 6.5 7.0 93 11.4 10.0 114
SPRING CREEK DIVIDE 9000 10.6 11.3 94 11.0 11.7 94
THUMB DIVIDE 7980 6.9 6.8 101 8.9 8.3 107
TOGWOTEE PASS 9580 11.1 10.6 105 11.8 10.9 108
TWO OCEAN PLATEAU 9240 16.1 12.3 131 13.8 12.3 112
WILLOW CREEK 8450 10.6 12.8 83 15.1 14.1 107
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Basin wide percent of average 99 105
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 10.8 10.5 103 9.0 9.1 99
BLACK BEAR 8170 18.2 15.6 117 19.4 16.0 121
CANYON 8090 5.9 5.4 109 8.3 7.1 117
FISHER CREEK 9100 17.8 14.8 120 17.5 15.5 113
MADISON PLATEAU 7750 9.4 10.1 93 13.0 11.2 116
NORTHEAST ENTRANCE 7350 3.9 4.5 87 6.1 5.9 103
PARKER PEAK 9400 9.1 9.7 94 9.0 7.6 118
SYLVAN LAKE 8420 7.3 9.6 76 10.8 10.1 107
THUMB DIVIDE 7980 6.9 6.8 101 8.9 8.3 107
TWO OCEAN PLATEAU 9240 16.1 12.3 131 13.8 12.3 112
WHISKEY CREEK 6800 4.8 6.7 72 9.8 9.0 109
WHITE MILL 8700 10.4 10.2 102 10.6 11.6 91
WOLVERINE 7650 4.5 5.1 88 4.7 6.4 73
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Basin wide percent of average 103 108
WIND RIVER
BURROUGHS CREEK 8750 -M 6.1 * 8.3 7.3 114
COLD SPRINGS 9630 2.2 4.3 51 4.4 5.4 81
DEER PARK 9700 5.8 6.2 94 7.5 10.0 75
HOBBS PARK 10100 3.7 7.2 51 5.1 6.0 85
LITTLE WARM 9370 4.1 4.9 84 6.0 6.2 97
SOUTH PASS 9040 5.5 7.6 72 6.8 8.5 80
ST. LAWRENCE ALT 8620 .9 3.6 25 3.0 4.4 68
TOGWOTEE PASS 9580 11.1 10.6 105 11.8 10.9 108
TOWNSEND CREEK 8700 2.3 4.1 56 4.9 5.7 86
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Basin wide percent of average 73 90
BIGHORN BASIN
BALD MTN. 9380 7.3 8.9 82 6.1 7.8 78
BEAR TRAP MEADOW 8200 2.6 2.4 108 4.4 4.3 102
BLACKWATER 9780 10.2 11.1 92 9.0 10.0 90
BONE SPRINGS DIV 9350 6.9 7.2 96 7.1 6.8 104
EVENING STAR 9200 10.4 12.6 83 13.1 11.9 110
GRAVE SPRINGS 8550 3.7 3.6 103 6.1 4.6 133
KIRWIN 9550 5.9 5.6 105 6.4 5.5 116
MARQUETTE 8760 1.4 4.7 30 4.3 5.0 86
MIDDLE POWDER 7760 5.5 5.1 108 6.0 6.4 94
OWL CREEK 8975 1.2 2.5 48 3.7 2.7 137
POWDER RIVER PASS 9480 4.3 4.8 90 6.2 5.6 111
SHELL CREEK 9580 6.2 6.8 91 5.8 6.2 94
SYLVAN LAKE 8420 7.3 9.6 76 10.8 10.1 107
SYLVAN ROAD 7120 4.3 5.7 75 8.7 9.3 94
TIMBER CREEK 7950 1.1 2.8 39 3.0 3.5 86
YOUNTS PEAK 8350 -M 7.2 * 9.6 7.5 128
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Basin wide percent of average 84 103
SHOSHONE RIVER
BLACKWATER 9780 10.2 11.1 92 9.0 10.0 90
EVENING STAR 9200 10.4 12.6 83 13.1 11.9 110
KIRWIN 9550 5.9 5.6 105 6.4 5.5 116
MARQUETTE 8760 1.4 4.7 30 4.3 5.0 86
SYLVAN LAKE 8420 7.3 9.6 76 10.8 10.1 107
SYLVAN ROAD 7120 4.3 5.7 75 8.7 9.3 94
YOUNTS PEAK 8350 -M 7.2 * 9.6 7.5 128
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Basin wide percent of average 80 104
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.6 2.4 108 4.4 4.3 102
BIG GOOSE 7990 2.8 3.9 72 5.0 4.2 119
BONE SPRINGS DIV 9350 6.9 7.2 96 7.1 6.8 104
BURGESS JUNCTION 7880 5.2 5.0 104 6.7 5.7 118
CLOUD PEAK RESERVOIR 9860 5.6 5.2 108 6.4 6.1 105
DOME LAKE 8880 5.5 5.6 98 6.1 6.4 95
GRAVE SPRINGS 8550 3.7 3.6 103 6.1 4.6 133
HANSEN SAWMILL 8360 1.8 3.0 60 3.5 4.1 85
MIDDLE POWDER 7760 5.5 5.1 108 6.0 6.4 94
POWDER RIVER PASS 9480 4.3 4.8 90 6.2 5.6 111
SUCKER CREEK 8880 4.9 4.7 104 7.5 6.2 121
TIE CREEK 6870 2.9 2.1 138 6.2 4.8 129
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Basin wide percent of average 98 109
BELLE FOURCHE
BLIND PARK 6890 3.7 3.1 119 5.5 5.8 95
COLE CANYON 5910 2.7 2.8 96 4.5 -M *
NORTH RAPID CREEK 6130 3.6 2.9 124 4.5 5.0 90
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Basin wide percent of average 114 93
UPPER N. PLATTE RIVER
COLUMBINE 9160 13.8 8.8 157 17.1 10.3 166
DIVIDE PEAK 8860 7.4 8.3 89 10.9 9.1 120
ELK RIVER 8700 7.3 6.2 118 10.3 8.1 127
JOE WRIGHT 10120 11.8 8.9 133 14.7 11.0 134
NORTH FRENCH CREEK 10130 14.7 12.1 121 15.7 11.0 143
OLD BATTLE 9920 15.5 13.4 116 19.5 14.5 134
SAGE CREEK BASIN 7850 4.1 4.8 85 6.6 5.3 125
SOUTH BRUSH CREEK 8440 6.0 4.6 130 9.5 7.2 132
TOWER 10500 23.0 18.8 122 25.1 16.3 154
WEBBER SPRINGS 9250 10.5 10.4 101 15.5 11.8 131
WILLOW CREEK PASS 9540 6.1 5.1 120 7.6 5.9 129
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Basin wide percent of average 119 138
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 10.8 9.7 111 8.5 9.2 92
CASPER MTN. 7850 4.9 6.4 77 7.5 6.7 112
DEADMAN HILL 10220 7.9 7.0 113 9.2 7.3 126
DEER PARK 9700 5.8 6.2 94 7.5 10.0 75
LAPRELE CREEK 8375 2.7 4.8 56 4.2 5.8 72
RENO HILL 8500 5.6 6.1 92 7.2 6.7 107
ROACH 9700 7.4 6.6 112 10.4 7.8 133
SAND LAKE 10050 14.8 13.7 108 15.1 10.6 142
SOUTH PASS 9040 5.5 7.6 72 6.8 8.5 80
WINDY PEAK 7900 2.2 3.3 67 4.0 5.1 78
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Basin wide percent of average 95 103
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 5.5 3.5 157 8.5 6.5 131
DIVIDE PEAK 8860 7.4 8.3 89 10.9 9.1 120
OLD BATTLE 9920 15.5 13.4 116 19.5 14.5 134
SANDSTONE RS 8150 5.5 4.6 120 10.6 8.1 131
WHISKEY PARK 8950 12.9 9.9 130 16.0 12.0 133
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Basin wide percent of average 118 130
UPPER GREEN RIVER
BIG SANDY OPENING 9080 4.2 6.3 67 5.1 6.1 84
BLIND BULL SUM 8900 9.6 11.8 81 8.4 10.0 84
EAST RIM DIVIDE 7930 4.0 5.3 75 4.8 5.3 91
ELKHART PARK G.S. 9400 5.3 5.7 93 6.1 6.2 98
GROS VENTRE SUMMIT 8750 5.2 6.2 84 6.2 5.9 105
KENDALL R.S. 7740 5.2 5.9 88 6.4 6.3 102
LOOMIS PARK 8240 6.7 7.2 93 7.6 7.5 101
NEW FORK LAKE 8340 4.1 4.8 85 4.3 5.4 80
SNIDER BASIN 8060 6.4 6.2 103 6.6 7.1 93
SPRING CREEK DIVIDE 9000 10.6 11.3 94 11.0 11.7 94
TRIPLE PEAK 8500 10.3 10.7 96 11.9 10.1 118
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Basin wide percent of average 88 96
LOWER GREEN RIVER
HAMS FORK 7840 4.3 4.8 90 4.9 5.3 92
HEWINTA 9500 4.7 3.6 131 7.1 6.5 109
HICKERSON PARK 9100 1.3 2.6 50 3.5 4.0 88
HOLE-IN-ROCK 9150 3.5 2.4 146 4.0 3.7 108
INDIAN CREEK 9425 10.2 11.2 91 9.7 11.0 88
KELLEY R.S. 8180 6.1 6.9 88 7.7 9.1 85
STEEL CREEK PARK 10100 6.2 6.1 102 7.6 7.1 107
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Basin wide percent of average 97 95
UPPER BEAR RIVER
BUG LAKE 7950 7.4 7.3 101 8.3 8.4 99
HAYDEN FORK 9100 7.3 5.5 133 10.1 9.1 111
KELLEY R.S. 8180 6.1 6.9 88 7.7 9.1 85
LILY LAKE 9050 5.5 4.9 112 7.0 7.9 89
MONTE CRISTO 8960 10.3 9.6 107 11.8 11.0 107
SALT RIVER SUMMIT 7600 5.2 4.8 108 7.2 8.1 89
TRIAL LAKE 9960 11.0 9.3 118 11.5 10.2 113
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Basin wide percent of average 109 100
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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.