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 30 , 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 8.4 7.9 106 12.4 10.1 123
COTTONWOOD CREEK 7600 10.6 9.4 113 13.9 13.1 106
GRANITE CREEK 6770 8.3 7.3 114 11.1 9.2 121
GRASSY LAKE 7265 14.9 14.2 105 20.0 16.8 119
GROS VENTRE SUMMIT 8750 6.1 6.7 91 7.1 6.3 113
LEWIS LAKE DIVIDE 7850 16.1 14.3 113 19.4 17.0 114
PHILLIPS BENCH 8200 13.6 12.2 111 15.0 13.1 115
SALT RIVER SUMMIT 7600 6.1 5.2 117 8.2 8.7 94
SNAKE RIVER STATION 6920 8.1 7.7 105 13.1 10.7 122
SPRING CREEK DIVIDE 9000 12.6 12.2 103 12.7 12.6 101
THUMB DIVIDE 7980 7.9 7.4 107 9.8 8.9 110
TOGWOTEE PASS 9580 12.7 11.4 111 13.4 11.7 115
TWO OCEAN PLATEAU 9240 18.1 13.2 137 14.8 13.2 112
WILLOW CREEK 8450 13.3 13.9 96 17.9 15.1 119
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Basin wide percent of average 110 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.6 11.2 104 9.6 9.7 99
BLACK BEAR 8170 21.6 16.7 129 21.6 17.1 126
CANYON 8090 6.9 5.9 117 9.2 7.6 121
FISHER CREEK 9100 20.1 15.9 126 19.4 16.6 117
MADISON PLATEAU 7750 11.2 10.9 103 14.4 12.1 119
NORTHEAST ENTRANCE 7350 4.5 4.8 94 6.7 6.2 108
PARKER PEAK 9400 10.0 10.4 96 9.5 8.0 119
SYLVAN LAKE 8420 8.5 10.2 83 12.0 10.7 112
THUMB DIVIDE 7980 7.9 7.4 107 9.8 8.9 110
TWO OCEAN PLATEAU 9240 18.1 13.2 137 14.8 13.2 112
WHISKEY CREEK 6800 5.9 7.3 81 10.9 9.6 114
WHITE MILL 8700 11.8 10.8 109 11.7 12.5 94
WOLVERINE 7650 4.9 5.6 88 4.5 6.8 66
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Basin wide percent of average 110 111
WIND RIVER
BURROUGHS CREEK 8750 -M 6.5 * 8.8 7.8 113
COLD SPRINGS 9630 2.0 4.5 44 4.4 5.6 79
DEER PARK 9700 6.7 6.6 102 8.6 10.7 80
HOBBS PARK 10100 4.1 7.5 55 5.2 6.3 83
LITTLE WARM 9370 4.2 5.2 81 6.3 6.6 95
SOUTH PASS 9040 6.1 8.0 76 7.5 9.0 83
ST. LAWRENCE ALT 8620 .7 3.7 19 3.0 4.5 67
TOGWOTEE PASS 9580 12.7 11.4 111 13.4 11.7 115
TOWNSEND CREEK 8700 2.2 4.3 51 5.1 5.9 86
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Basin wide percent of average 76 91
BIGHORN BASIN
BALD MTN. 9380 8.2 9.5 86 6.4 8.3 77
BEAR TRAP MEADOW 8200 2.8 2.5 112 4.7 4.4 107
BLACKWATER 9780 10.9 11.8 92 9.5 10.6 90
BONE SPRINGS DIV 9350 7.2 7.6 95 7.1 7.1 100
EVENING STAR 9200 12.0 13.4 90 14.1 12.7 111
GRAVE SPRINGS 8550 4.4 3.9 113 6.7 4.8 140
KIRWIN 9550 5.8 5.8 100 6.2 5.8 107
MARQUETTE 8760 .9 4.9 18 3.8 5.2 73
MIDDLE POWDER 7760 6.6 5.4 122 6.2 6.7 93
OWL CREEK 8975 1.0 2.7 37 3.3 2.9 114
POWDER RIVER PASS 9480 4.9 5.2 94 6.4 5.9 108
SHELL CREEK 9580 6.6 7.1 93 6.4 6.6 97
SYLVAN LAKE 8420 8.5 10.2 83 12.0 10.7 112
SYLVAN ROAD 7120 4.8 6.0 80 9.3 9.9 94
TIMBER CREEK 7950 .9 3.0 30 3.2 3.7 86
YOUNTS PEAK 8350 -M 7.7 * 10.0 8.0 125
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Basin wide percent of average 86 102
SHOSHONE RIVER
BLACKWATER 9780 10.9 11.8 92 9.5 10.6 90
EVENING STAR 9200 12.0 13.4 90 14.1 12.7 111
KIRWIN 9550 5.8 5.8 100 6.2 5.8 107
MARQUETTE 8760 .9 4.9 18 3.8 5.2 73
SYLVAN LAKE 8420 8.5 10.2 83 12.0 10.7 112
SYLVAN ROAD 7120 4.8 6.0 80 9.3 9.9 94
YOUNTS PEAK 8350 -M 7.7 * 10.0 8.0 125
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Basin wide percent of average 82 103
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.8 2.5 112 4.7 4.4 107
BIG GOOSE 7990 3.0 4.3 70 5.0 4.4 114
BONE SPRINGS DIV 9350 7.2 7.6 95 7.1 7.1 100
BURGESS JUNCTION 7880 5.3 5.4 98 6.6 6.0 110
CLOUD PEAK RESERVOIR 9860 6.2 5.6 111 6.3 6.3 100
DOME LAKE 8880 5.5 6.0 92 6.4 6.8 94
GRAVE SPRINGS 8550 4.4 3.9 113 6.7 4.8 140
HANSEN SAWMILL 8360 1.8 3.2 56 3.6 4.2 86
MIDDLE POWDER 7760 6.6 5.4 122 6.2 6.7 93
POWDER RIVER PASS 9480 4.9 5.2 94 6.4 5.9 108
SUCKER CREEK 8880 5.5 5.1 108 7.9 6.6 120
TIE CREEK 6870 3.0 2.4 125 6.5 5.0 130
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Basin wide percent of average 99 108
BELLE FOURCHE
BLIND PARK 6890 4.2 3.4 124 6.2 6.1 102
COLE CANYON 5910 3.0 2.9 103 4.8 -M *
NORTH RAPID CREEK 6130 3.6 3.2 112 4.7 5.2 90
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Basin wide percent of average 114 96
UPPER N. PLATTE RIVER
COLUMBINE 9160 15.1 9.7 156 18.2 11.2 162
DIVIDE PEAK 8860 8.7 8.9 98 11.9 9.8 121
ELK RIVER 8700 8.5 6.9 123 11.2 8.7 129
JOE WRIGHT 10120 12.5 9.5 132 15.4 11.6 133
NORTH FRENCH CREEK 10130 17.7 13.0 136 18.3 11.7 156
OLD BATTLE 9920 17.9 14.3 125 21.5 15.6 138
SAGE CREEK BASIN 7850 5.1 5.1 100 7.7 5.7 135
SOUTH BRUSH CREEK 8440 7.0 5.0 140 10.5 7.6 138
TOWER 10500 25.6 20.1 127 27.0 17.4 155
WEBBER SPRINGS 9250 12.3 11.2 110 17.3 12.7 136
WILLOW CREEK PASS 9540 6.2 5.5 113 7.7 6.3 122
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Basin wide percent of average 125 141
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 12.2 10.5 116 9.8 9.8 100
CASPER MTN. 7850 5.8 6.8 85 8.5 7.1 120
DEADMAN HILL 10220 8.5 7.4 115 9.9 7.7 129
DEER PARK 9700 6.7 6.6 102 8.6 10.7 80
LAPRELE CREEK 8375 3.4 5.2 65 4.4 6.1 72
RENO HILL 8500 6.4 6.5 98 8.1 7.1 114
ROACH 9700 8.0 7.1 113 10.9 8.3 131
SAND LAKE 10050 17.1 14.5 118 -M 11.3 *
SOUTH PASS 9040 6.1 8.0 76 7.5 9.0 83
WINDY PEAK 7900 2.6 3.4 76 4.3 5.4 80
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Basin wide percent of average 101 101
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.2 3.9 159 9.0 6.9 130
DIVIDE PEAK 8860 8.7 8.9 98 11.9 9.8 121
OLD BATTLE 9920 17.9 14.3 125 21.5 15.6 138
SANDSTONE RS 8150 6.6 5.1 129 11.8 8.7 136
WHISKEY PARK 8950 15.3 10.8 142 18.2 12.9 141
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Basin wide percent of average 127 134
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.5 6.7 82 6.3 6.5 97
BLIND BULL SUM 8900 11.4 12.8 89 9.6 10.8 89
EAST RIM DIVIDE 7930 4.6 5.7 81 5.3 5.7 93
ELKHART PARK G.S. 9400 6.0 6.1 98 6.8 6.6 103
GROS VENTRE SUMMIT 8750 6.1 6.7 91 7.1 6.3 113
KENDALL R.S. 7740 6.3 6.5 97 7.5 6.7 112
LOOMIS PARK 8240 8.1 7.8 104 9.0 8.1 111
NEW FORK LAKE 8340 4.6 5.2 88 5.0 5.8 86
SNIDER BASIN 8060 7.4 6.7 110 7.5 7.7 97
SPRING CREEK DIVIDE 9000 12.6 12.2 103 12.7 12.6 101
TRIPLE PEAK 8500 12.2 11.5 106 13.6 10.9 125
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Basin wide percent of average 96 103
LOWER GREEN RIVER
HAMS FORK 7840 5.2 5.3 98 5.6 5.7 98
HEWINTA 9500 4.9 4.0 123 7.5 6.9 109
HICKERSON PARK 9100 1.1 2.8 39 3.5 4.1 85
HOLE-IN-ROCK 9150 3.6 2.6 138 4.2 3.8 111
INDIAN CREEK 9425 12.1 12.1 100 11.1 11.9 93
KELLEY R.S. 8180 -M 7.4 * -M 9.8 *
STEEL CREEK PARK 10100 6.8 6.5 105 8.1 7.4 109
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Basin wide percent of average 101 101
UPPER BEAR RIVER
BUG LAKE 7950 8.6 8.0 108 9.1 9.0 101
HAYDEN FORK 9100 8.3 6.1 136 10.9 9.7 112
KELLEY R.S. 8180 -M 7.4 * -M 9.8 *
LILY LAKE 9050 6.1 5.3 115 7.5 8.4 89
MONTE CRISTO 8960 11.9 10.6 112 12.9 11.8 109
SALT RIVER SUMMIT 7600 6.1 5.2 117 8.2 8.7 94
TRIAL LAKE 9960 12.1 10.2 119 12.7 10.9 117
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Basin wide percent of average 117 105
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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.