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 FRIDAY: DECEMBER 2 , 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 4.7 4.2 112 8.3 6.2 134
COTTONWOOD CREEK 7600 5.0 4.9 102 8.3 8.2 101
GRANITE CREEK 6770 4.8 3.5 137 6.9 5.5 125
GRASSY LAKE 7265 8.2 7.9 104 12.6 9.8 129
GROS VENTRE SUMMIT 8750 4.2 4.0 105 5.3 4.4 120
LEWIS LAKE DIVIDE 7850 9.1 7.9 115 12.9 10.1 128
PHILLIPS BENCH 8200 7.3 6.6 111 9.5 7.6 125
SALT RIVER SUMMIT 7600 3.3 2.7 122 5.2 5.1 102
SNAKE RIVER STATION 6920 4.5 4.1 110 8.9 6.5 137
SPRING CREEK DIVIDE 9000 6.9 7.0 99 7.6 7.5 101
THUMB DIVIDE 7980 4.9 4.1 120 7.2 5.5 131
TOGWOTEE PASS 9580 8.3 7.2 115 8.8 7.5 117
TWO OCEAN PLATEAU 9240 13.5 8.5 159 11.3 8.4 135
WILLOW CREEK 8450 6.4 7.9 81 10.8 9.6 113
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Basin wide percent of average 113 121
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 8.6 7.2 119 6.9 6.0 115
BLACK BEAR 8170 12.9 9.9 130 14.3 10.7 134
CANYON 8090 4.6 3.3 139 6.7 4.9 137
FISHER CREEK 9100 13.3 9.4 141 13.4 10.0 134
MADISON PLATEAU 7750 6.8 6.3 108 10.2 7.4 138
NORTHEAST ENTRANCE 7350 2.6 2.6 100 4.8 4.1 117
PARKER PEAK 9400 6.4 6.8 94 6.8 5.6 121
SYLVAN LAKE 8420 5.3 6.5 82 8.6 7.2 119
THUMB DIVIDE 7980 4.9 4.1 120 7.2 5.5 131
TWO OCEAN PLATEAU 9240 13.5 8.5 159 11.3 8.4 135
WHISKEY CREEK 6800 3.6 3.9 92 7.6 6.0 127
WHITE MILL 8700 7.5 6.8 110 8.1 7.9 103
WOLVERINE 7650 2.7 3.1 87 3.4 4.6 74
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Basin wide percent of average 118 124
WIND RIVER
BURROUGHS CREEK 8750 4.2 3.9 108 6.0 5.0 120
COLD SPRINGS 9630 1.7 3.2 53 3.9 4.2 93
DEER PARK 9700 3.8 4.6 83 5.4 7.2 75
HOBBS PARK 10100 3.0 5.4 56 4.6 4.7 98
LITTLE WARM 9370 3.1 3.5 89 4.9 4.7 104
SOUTH PASS 9040 3.6 5.0 72 5.0 6.1 82
ST. LAWRENCE ALT 8620 .7 2.7 26 2.7 3.5 77
TOGWOTEE PASS 9580 8.3 7.2 115 8.8 7.5 117
TOWNSEND CREEK 8700 1.8 3.0 60 4.4 4.5 98
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Basin wide percent of average 78 96
BIGHORN BASIN
BALD MTN. 9380 4.6 6.0 77 3.9 5.4 72
BEAR TRAP MEADOW 8200 1.5 1.6 94 3.7 3.4 109
BLACKWATER 9780 8.1 8.0 101 6.9 7.3 95
BONE SPRINGS DIV 9350 5.2 5.4 96 5.2 5.0 104
EVENING STAR 9200 7.1 8.7 82 9.8 8.4 117
GRAVE SPRINGS 8550 2.5 2.7 93 4.4 3.6 122
KIRWIN 9550 5.0 4.3 116 5.2 4.2 124
MARQUETTE 8760 1.5 3.8 39 3.8 4.1 93
MIDDLE POWDER 7760 4.2 3.6 117 4.8 5.0 96
OWL CREEK 8975 .9 1.9 47 2.9 2.2 132
POWDER RIVER PASS 9480 2.4 3.4 71 4.1 4.2 98
SHELL CREEK 9580 4.3 5.2 83 4.2 4.6 91
SYLVAN LAKE 8420 5.3 6.5 82 8.6 7.2 119
SYLVAN ROAD 7120 2.7 3.6 75 6.7 6.7 100
TIMBER CREEK 7950 1.0 2.3 43 3.2 3.0 107
YOUNTS PEAK 8350 5.5 4.8 115 8.1 5.3 153
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Basin wide percent of average 86 107
SHOSHONE RIVER
BLACKWATER 9780 8.1 8.0 101 6.9 7.3 95
EVENING STAR 9200 7.1 8.7 82 9.8 8.4 117
KIRWIN 9550 5.0 4.3 116 5.2 4.2 124
MARQUETTE 8760 1.5 3.8 39 3.8 4.1 93
SYLVAN LAKE 8420 5.3 6.5 82 8.6 7.2 119
SYLVAN ROAD 7120 2.7 3.6 75 6.7 6.7 100
YOUNTS PEAK 8350 5.5 4.8 115 8.1 5.3 153
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Basin wide percent of average 89 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.5 1.6 94 3.7 3.4 109
BIG GOOSE 7990 1.9 2.4 79 4.1 3.0 137
BONE SPRINGS DIV 9350 5.2 5.4 96 5.2 5.0 104
BURGESS JUNCTION 7880 3.6 3.6 100 5.3 4.3 123
CLOUD PEAK RESERVOIR 9860 4.0 3.9 103 5.3 4.9 108
DOME LAKE 8880 4.0 4.2 95 4.9 5.0 98
GRAVE SPRINGS 8550 2.5 2.7 93 4.4 3.6 122
HANSEN SAWMILL 8360 -M 2.0 * -M 3.2 *
MIDDLE POWDER 7760 4.2 3.6 117 4.8 5.0 96
POWDER RIVER PASS 9480 2.4 3.4 71 4.1 4.2 98
SUCKER CREEK 8880 3.1 3.3 94 5.5 4.6 120
TIE CREEK 6870 1.8 1.2 150 5.1 3.7 138
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Basin wide percent of average 97 112
BELLE FOURCHE
BLIND PARK 6890 1.5 2.0 75 3.2 4.6 70
COLE CANYON 5910 1.2 1.9 63 3.4 -M *
NORTH RAPID CREEK 6130 1.6 1.8 89 2.8 3.8 74
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Basin wide percent of average 75 71
UPPER N. PLATTE RIVER
COLUMBINE 9160 6.9 5.2 133 10.8 6.6 164
DIVIDE PEAK 8860 4.2 5.2 81 7.9 6.3 125
ELK RIVER 8700 3.2 3.2 100 6.7 5.3 126
JOE WRIGHT 10120 8.0 6.4 125 10.6 7.8 136
NORTH FRENCH CREEK 10130 9.3 8.1 115 10.5 7.6 138
OLD BATTLE 9920 9.4 9.2 102 12.6 9.5 133
SAGE CREEK BASIN 7850 2.5 3.1 81 5.2 3.7 141
SOUTH BRUSH CREEK 8440 3.9 3.0 130 7.3 5.3 138
TOWER 10500 12.6 12.9 98 15.7 10.8 145
WEBBER SPRINGS 9250 -M 6.8 * -M 8.0 *
WILLOW CREEK PASS 9540 4.4 3.7 119 5.7 4.5 127
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Basin wide percent of average 107 138
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 6.7 6.2 108 5.1 6.3 81
CASPER MTN. 7850 3.8 4.7 81 6.7 5.3 126
DEADMAN HILL 10220 5.4 5.1 106 7.1 5.4 131
DEER PARK 9700 3.8 4.6 83 5.4 7.2 75
LAPRELE CREEK 8375 1.8 3.3 55 3.2 4.4 73
RENO HILL 8500 4.5 4.4 102 6.2 5.2 119
ROACH 9700 4.4 4.4 100 7.1 5.3 134
SAND LAKE 10050 10.6 9.4 113 11.0 7.3 151
SOUTH PASS 9040 3.6 5.0 72 5.0 6.1 82
WINDY PEAK 7900 1.3 2.3 57 3.2 3.8 84
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Basin wide percent of average 93 107
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.3 2.0 165 6.5 4.5 144
DIVIDE PEAK 8860 4.2 5.2 81 7.9 6.3 125
OLD BATTLE 9920 9.4 9.2 102 12.6 9.5 133
SANDSTONE RS 8150 3.3 2.5 132 7.5 5.6 134
WHISKEY PARK 8950 6.4 6.2 103 10.1 8.0 126
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Basin wide percent of average 106 132
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.1 4.1 76 4.2 4.4 95
BLIND BULL SUM 8900 6.5 7.3 89 6.3 6.6 95
EAST RIM DIVIDE 7930 2.6 3.3 79 3.4 3.6 94
ELKHART PARK G.S. 9400 3.8 3.6 106 4.7 4.5 104
GROS VENTRE SUMMIT 8750 4.2 4.0 105 5.3 4.4 120
KENDALL R.S. 7740 3.5 3.3 106 5.0 4.2 119
LOOMIS PARK 8240 4.6 4.5 102 5.5 5.0 110
NEW FORK LAKE 8340 2.8 2.9 97 3.3 3.9 85
SNIDER BASIN 8060 4.2 3.7 114 4.6 4.6 100
SPRING CREEK DIVIDE 9000 6.9 7.0 99 7.6 7.5 101
TRIPLE PEAK 8500 6.8 6.5 105 8.5 6.7 127
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Basin wide percent of average 98 105
LOWER GREEN RIVER
HAMS FORK 7840 2.7 2.6 104 3.7 3.6 103
HEWINTA 9500 2.3 2.2 105 5.2 5.0 104
HICKERSON PARK 9100 .5 1.5 33 2.8 3.2 87
HOLE-IN-ROCK 9150 2.7 1.5 180 3.3 3.0 110
INDIAN CREEK 9425 6.9 6.9 100 6.9 7.2 96
KELLEY R.S. 8180 3.8 4.3 88 5.4 5.8 93
STEEL CREEK PARK 10100 3.8 4.1 93 5.6 5.3 106
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Basin wide percent of average 98 99
UPPER BEAR RIVER
BUG LAKE 7950 3.9 4.2 93 5.4 5.8 93
HAYDEN FORK 9100 -M 3.2 * -M 6.2 *
KELLEY R.S. 8180 3.8 4.3 88 5.4 5.8 93
LILY LAKE 9050 3.3 3.0 110 4.9 5.8 84
MONTE CRISTO 8960 6.0 5.4 111 6.9 7.5 92
SALT RIVER SUMMIT 7600 3.3 2.7 122 5.2 5.1 102
TRIAL LAKE 9960 6.5 5.8 112 7.4 6.8 109
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Basin wide percent of average 106 96
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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.