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 WEDNESDAY: DECEMBER 14 , 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 5.9 5.8 102 9.5 7.9 120
COTTONWOOD CREEK 7600 6.6 6.7 99 10.0 10.3 97
GRANITE CREEK 6770 6.2 5.2 119 8.4 7.1 118
GRASSY LAKE 7265 10.5 10.6 99 15.0 12.8 117
GROS VENTRE SUMMIT 8750 4.6 5.2 88 7.5 5.2 144
LEWIS LAKE DIVIDE 7850 10.1 10.7 94 14.0 13.1 107
PHILLIPS BENCH 8200 9.0 9.1 99 11.0 10.0 110
SALT RIVER SUMMIT 7600 4.2 3.8 111 6.1 6.7 91
SNAKE RIVER STATION 6920 5.5 5.7 96 10.1 8.3 122
SPRING CREEK DIVIDE 9000 8.5 9.4 90 9.1 9.7 94
THUMB DIVIDE 7980 5.7 5.5 104 7.9 7.0 113
TOGWOTEE PASS 9580 10.0 8.9 112 10.6 9.3 114
TWO OCEAN PLATEAU 9240 14.8 10.5 141 12.4 10.4 119
WILLOW CREEK 8450 8.7 10.5 83 13.2 12.0 110
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Basin wide percent of average 103 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.7 8.9 109 8.1 7.6 107
BLACK BEAR 8170 15.4 13.0 118 16.7 13.5 124
CANYON 8090 5.4 4.4 123 7.6 6.1 125
FISHER CREEK 9100 15.4 12.4 124 15.2 12.9 118
MADISON PLATEAU 7750 8.3 8.4 99 11.6 9.4 123
NORTHEAST ENTRANCE 7350 3.2 3.6 89 5.5 5.0 110
PARKER PEAK 9400 7.5 8.4 89 7.7 6.6 117
SYLVAN LAKE 8420 6.4 8.2 78 9.8 8.7 113
THUMB DIVIDE 7980 5.7 5.5 104 7.9 7.0 113
TWO OCEAN PLATEAU 9240 14.8 10.5 141 12.4 10.4 119
WHISKEY CREEK 6800 4.1 5.5 75 9.1 7.6 120
WHITE MILL 8700 8.9 8.7 102 9.0 9.8 92
WOLVERINE 7650 4.0 4.1 98 4.0 5.5 73
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Basin wide percent of average 107 113
WIND RIVER
BURROUGHS CREEK 8750 -M 5.1 * 7.2 6.2 116
COLD SPRINGS 9630 1.6 3.8 42 4.1 4.8 85
DEER PARK 9700 5.2 5.5 95 7.1 8.7 82
HOBBS PARK 10100 3.3 6.5 51 4.6 5.4 85
LITTLE WARM 9370 3.5 4.2 83 5.4 5.5 98
SOUTH PASS 9040 4.9 6.7 73 6.4 7.3 88
ST. LAWRENCE ALT 8620 .5 3.3 15 2.8 4.0 70
TOGWOTEE PASS 9580 10.0 8.9 112 10.6 9.3 114
TOWNSEND CREEK 8700 1.8 3.7 49 4.8 5.1 94
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Basin wide percent of average 72 94
BIGHORN BASIN
BALD MTN. 9380 6.4 7.6 84 5.1 6.6 77
BEAR TRAP MEADOW 8200 2.1 2.1 100 4.2 3.9 108
BLACKWATER 9780 9.1 9.8 93 8.0 8.7 92
BONE SPRINGS DIV 9350 6.5 6.3 103 6.4 5.9 108
EVENING STAR 9200 8.7 10.9 80 11.8 10.2 116
GRAVE SPRINGS 8550 3.2 3.1 103 5.4 4.1 132
KIRWIN 9550 5.3 5.0 106 5.6 4.9 114
MARQUETTE 8760 1.0 4.3 23 3.8 4.6 83
MIDDLE POWDER 7760 5.1 4.5 113 5.6 5.7 98
OWL CREEK 8975 .8 2.3 35 3.1 2.5 124
POWDER RIVER PASS 9480 3.7 4.1 90 5.3 4.9 108
SHELL CREEK 9580 5.5 5.9 93 5.5 5.4 102
SYLVAN LAKE 8420 6.4 8.2 78 9.8 8.7 113
SYLVAN ROAD 7120 3.8 4.8 79 7.9 8.1 98
TIMBER CREEK 7950 1.0 2.6 38 3.2 3.3 97
YOUNTS PEAK 8350 -M 6.1 * 8.9 6.5 137
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Basin wide percent of average 84 106
SHOSHONE RIVER
BLACKWATER 9780 9.1 9.8 93 8.0 8.7 92
EVENING STAR 9200 8.7 10.9 80 11.8 10.2 116
KIRWIN 9550 5.3 5.0 106 5.6 4.9 114
MARQUETTE 8760 1.0 4.3 23 3.8 4.6 83
SYLVAN LAKE 8420 6.4 8.2 78 9.8 8.7 113
SYLVAN ROAD 7120 3.8 4.8 79 7.9 8.1 98
YOUNTS PEAK 8350 -M 6.1 * 8.9 6.5 137
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Basin wide percent of average 80 108
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.1 2.1 100 4.2 3.9 108
BIG GOOSE 7990 2.4 3.2 75 4.5 3.6 125
BONE SPRINGS DIV 9350 6.5 6.3 103 6.4 5.9 108
BURGESS JUNCTION 7880 4.7 4.3 109 6.1 5.0 122
CLOUD PEAK RESERVOIR 9860 4.9 4.5 109 5.4 5.5 98
DOME LAKE 8880 4.8 4.9 98 5.8 5.7 102
GRAVE SPRINGS 8550 3.2 3.1 103 5.4 4.1 132
HANSEN SAWMILL 8360 1.6 2.6 62 3.3 3.7 89
MIDDLE POWDER 7760 5.1 4.5 113 5.6 5.7 98
POWDER RIVER PASS 9480 3.7 4.1 90 5.3 4.9 108
SUCKER CREEK 8880 4.3 4.0 108 6.6 5.4 122
TIE CREEK 6870 2.5 1.5 167 5.9 4.3 137
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Basin wide percent of average 102 112
BELLE FOURCHE
BLIND PARK 6890 2.0 2.5 80 3.7 5.2 71
COLE CANYON 5910 1.8 2.4 75 4.2 -M *
NORTH RAPID CREEK 6130 2.1 2.3 91 3.4 4.4 77
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Basin wide percent of average 82 74
UPPER N. PLATTE RIVER
COLUMBINE 9160 11.1 6.9 161 14.3 8.5 168
DIVIDE PEAK 8860 6.0 6.8 88 9.5 7.8 122
ELK RIVER 8700 5.2 4.7 111 8.5 6.8 125
JOE WRIGHT 10120 9.9 7.6 130 11.9 9.5 125
NORTH FRENCH CREEK 10130 11.3 10.1 112 12.5 9.4 133
OLD BATTLE 9920 12.7 11.6 109 16.0 12.1 132
SAGE CREEK BASIN 7850 3.4 3.9 87 6.1 4.5 136
SOUTH BRUSH CREEK 8440 4.6 3.8 121 8.0 6.3 127
TOWER 10500 18.5 16.0 116 21.0 13.7 153
WEBBER SPRINGS 9250 -M 8.7 * -M 10.0 *
WILLOW CREEK PASS 9540 5.9 4.4 134 6.8 5.2 131
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Basin wide percent of average 117 137
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 8.8 7.9 111 6.8 7.8 87
CASPER MTN. 7850 4.4 5.6 79 7.2 6.0 120
DEADMAN HILL 10220 6.9 6.1 113 8.4 6.4 131
DEER PARK 9700 5.2 5.5 95 7.1 8.7 82
LAPRELE CREEK 8375 2.3 4.1 56 3.8 5.1 75
RENO HILL 8500 5.2 5.3 98 6.9 6.0 115
ROACH 9700 6.2 5.5 113 8.8 6.6 133
SAND LAKE 10050 12.9 11.7 110 13.2 9.0 147
SOUTH PASS 9040 4.9 6.7 73 6.4 7.3 88
WINDY PEAK 7900 1.9 2.9 66 3.8 4.5 84
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Basin wide percent of average 96 107
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.4 2.5 176 7.5 5.5 136
DIVIDE PEAK 8860 6.0 6.8 88 9.5 7.8 122
OLD BATTLE 9920 12.7 11.6 109 16.0 12.1 132
SANDSTONE RS 8150 4.5 3.4 132 9.3 6.9 135
WHISKEY PARK 8950 10.1 8.0 126 13.5 10.1 134
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Basin wide percent of average 117 132
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.3 5.3 62 4.2 5.3 79
BLIND BULL SUM 8900 7.7 9.7 79 7.2 8.4 86
EAST RIM DIVIDE 7930 3.5 4.4 80 4.2 4.5 93
ELKHART PARK G.S. 9400 4.4 4.7 94 5.4 5.4 100
GROS VENTRE SUMMIT 8750 4.6 5.2 88 7.5 5.2 144
KENDALL R.S. 7740 4.2 4.7 89 5.7 5.3 108
LOOMIS PARK 8240 5.7 6.0 95 6.6 6.3 105
NEW FORK LAKE 8340 3.4 3.9 87 3.6 4.7 77
SNIDER BASIN 8060 5.3 5.1 104 5.7 5.9 97
SPRING CREEK DIVIDE 9000 8.5 9.4 90 9.1 9.7 94
TRIPLE PEAK 8500 8.6 8.7 99 10.3 8.5 121
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Basin wide percent of average 88 100
LOWER GREEN RIVER
HAMS FORK 7840 3.5 3.7 95 4.3 4.5 96
HEWINTA 9500 4.0 2.8 143 6.6 5.8 114
HICKERSON PARK 9100 1.0 2.1 48 3.4 3.6 94
HOLE-IN-ROCK 9150 2.9 2.0 145 3.8 3.4 112
INDIAN CREEK 9425 8.7 9.2 95 8.3 9.2 90
KELLEY R.S. 8180 4.9 5.7 86 6.6 7.5 88
STEEL CREEK PARK 10100 5.2 5.1 102 7.0 6.2 113
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Basin wide percent of average 99 100
UPPER BEAR RIVER
BUG LAKE 7950 5.7 5.7 100 7.0 7.2 97
HAYDEN FORK 9100 6.2 4.3 144 9.0 7.7 117
KELLEY R.S. 8180 4.9 5.7 86 6.6 7.5 88
LILY LAKE 9050 4.8 3.9 123 6.5 6.9 94
MONTE CRISTO 8960 8.0 7.4 108 9.6 9.3 103
SALT RIVER SUMMIT 7600 4.2 3.8 111 6.1 6.7 91
TRIAL LAKE 9960 8.8 7.6 116 9.8 8.6 114
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Basin wide percent of average 111 101
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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.