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 THURSDAY: DECEMBER 29 , 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 8.1 7.8 104 11.9 10.0 119
COTTONWOOD CREEK 7600 9.8 9.2 107 13.0 13.0 100
GRANITE CREEK 6770 8.2 7.2 114 10.9 9.1 120
GRASSY LAKE 7265 14.7 14.0 105 19.7 16.6 119
GROS VENTRE SUMMIT 8750 6.1 6.6 92 6.9 6.2 111
LEWIS LAKE DIVIDE 7850 15.8 14.1 112 19.2 16.8 114
PHILLIPS BENCH 8200 12.7 12.0 106 14.4 12.9 112
SALT RIVER SUMMIT 7600 5.9 5.1 116 8.0 8.6 93
SNAKE RIVER STATION 6920 8.0 7.5 107 13.0 10.6 123
SPRING CREEK DIVIDE 9000 12.1 12.0 101 12.2 12.4 98
THUMB DIVIDE 7980 7.8 7.2 108 9.7 8.7 111
TOGWOTEE PASS 9580 12.3 11.2 110 13.1 11.5 114
TWO OCEAN PLATEAU 9240 17.6 13.0 135 14.6 13.0 112
WILLOW CREEK 8450 12.7 13.7 93 17.4 14.9 117
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Basin wide percent of average 108 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 11.7 11.1 105 9.7 9.6 101
BLACK BEAR 8170 21.4 16.5 130 21.6 16.9 128
CANYON 8090 6.8 5.8 117 9.1 7.5 121
FISHER CREEK 9100 19.8 15.7 126 19.3 16.4 118
MADISON PLATEAU 7750 11.0 10.7 103 14.4 11.9 121
NORTHEAST ENTRANCE 7350 4.7 4.8 98 6.7 6.2 108
PARKER PEAK 9400 9.9 10.2 97 9.5 7.9 120
SYLVAN LAKE 8420 8.4 10.1 83 11.8 10.6 111
THUMB DIVIDE 7980 7.8 7.2 108 9.7 8.7 111
TWO OCEAN PLATEAU 9240 17.6 13.0 135 14.6 13.0 112
WHISKEY CREEK 6800 5.8 7.2 81 10.6 9.5 112
WHITE MILL 8700 11.7 10.7 109 11.7 12.3 95
WOLVERINE 7650 4.9 5.5 89 4.7 6.8 69
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Basin wide percent of average 110 112
WIND RIVER
BURROUGHS CREEK 8750 -M 6.4 * 9.0 7.7 117
COLD SPRINGS 9630 2.2 4.5 49 4.5 5.6 80
DEER PARK 9700 6.6 6.5 102 8.4 10.5 80
HOBBS PARK 10100 4.1 7.4 55 5.3 6.2 85
LITTLE WARM 9370 4.3 5.1 84 6.3 6.5 97
SOUTH PASS 9040 6.2 8.0 78 7.4 8.9 83
ST. LAWRENCE ALT 8620 1.0 3.7 27 3.1 4.5 69
TOGWOTEE PASS 9580 12.3 11.2 110 13.1 11.5 114
TOWNSEND CREEK 8700 2.5 4.3 58 5.1 5.9 86
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Basin wide percent of average 77 92
BIGHORN BASIN
BALD MTN. 9380 7.7 9.3 83 6.4 8.2 78
BEAR TRAP MEADOW 8200 2.7 2.5 108 4.5 4.4 102
BLACKWATER 9780 10.9 11.6 94 9.5 10.5 90
BONE SPRINGS DIV 9350 7.0 7.6 92 7.2 7.1 101
EVENING STAR 9200 11.9 13.2 90 13.9 12.5 111
GRAVE SPRINGS 8550 4.0 3.8 105 6.3 4.8 131
KIRWIN 9550 6.0 5.8 103 6.5 5.7 114
MARQUETTE 8760 1.2 4.9 24 4.1 5.2 79
MIDDLE POWDER 7760 5.8 5.3 109 6.1 6.6 92
OWL CREEK 8975 1.1 2.6 42 3.7 2.8 132
POWDER RIVER PASS 9480 4.6 5.1 90 6.5 5.8 112
SHELL CREEK 9580 6.5 7.1 92 6.2 6.5 95
SYLVAN LAKE 8420 8.4 10.1 83 11.8 10.6 111
SYLVAN ROAD 7120 4.8 6.0 80 9.2 9.8 94
TIMBER CREEK 7950 1.1 2.9 38 3.1 3.6 86
YOUNTS PEAK 8350 -M 7.6 * 10.1 7.9 128
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Basin wide percent of average 86 103
SHOSHONE RIVER
BLACKWATER 9780 10.9 11.6 94 9.5 10.5 90
EVENING STAR 9200 11.9 13.2 90 13.9 12.5 111
KIRWIN 9550 6.0 5.8 103 6.5 5.7 114
MARQUETTE 8760 1.2 4.9 24 4.1 5.2 79
SYLVAN LAKE 8420 8.4 10.1 83 11.8 10.6 111
SYLVAN ROAD 7120 4.8 6.0 80 9.2 9.8 94
YOUNTS PEAK 8350 -M 7.6 * 10.1 7.9 128
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Basin wide percent of average 84 105
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.7 2.5 108 4.5 4.4 102
BIG GOOSE 7990 3.0 4.2 71 5.2 4.4 118
BONE SPRINGS DIV 9350 7.0 7.6 92 7.2 7.1 101
BURGESS JUNCTION 7880 5.2 5.3 98 6.7 5.9 114
CLOUD PEAK RESERVOIR 9860 5.9 5.5 107 6.5 6.3 103
DOME LAKE 8880 5.6 5.9 95 6.3 6.7 94
GRAVE SPRINGS 8550 4.0 3.8 105 6.3 4.8 131
HANSEN SAWMILL 8360 1.9 3.2 59 3.7 4.2 88
MIDDLE POWDER 7760 5.8 5.3 109 6.1 6.6 92
POWDER RIVER PASS 9480 4.6 5.1 90 6.5 5.8 112
SUCKER CREEK 8880 5.2 5.0 104 7.8 6.5 120
TIE CREEK 6870 2.9 2.3 126 6.3 5.0 126
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Basin wide percent of average 97 108
BELLE FOURCHE
BLIND PARK 6890 3.6 3.3 109 5.5 6.0 92
COLE CANYON 5910 2.6 2.9 90 4.6 -M *
NORTH RAPID CREEK 6130 3.3 3.1 106 4.5 5.2 87
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Basin wide percent of average 102 89
UPPER N. PLATTE RIVER
COLUMBINE 9160 14.6 9.5 154 18.0 11.0 164
DIVIDE PEAK 8860 8.1 8.8 92 11.5 9.6 120
ELK RIVER 8700 8.2 6.8 121 10.8 8.5 127
JOE WRIGHT 10120 12.1 9.3 130 15.2 11.5 132
NORTH FRENCH CREEK 10130 16.4 12.9 127 17.2 11.6 148
OLD BATTLE 9920 16.6 14.1 118 20.6 15.4 134
SAGE CREEK BASIN 7850 4.8 5.1 94 7.3 5.6 130
SOUTH BRUSH CREEK 8440 6.5 4.9 133 10.1 7.5 135
TOWER 10500 24.7 19.8 125 26.3 17.2 153
WEBBER SPRINGS 9250 -M 11.0 * -M 12.5 *
WILLOW CREEK PASS 9540 6.2 5.4 115 7.8 6.2 126
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Basin wide percent of average 122 139
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 11.2 10.3 109 8.9 9.7 92
CASPER MTN. 7850 5.5 6.7 82 8.0 7.0 114
DEADMAN HILL 10220 8.3 7.4 112 9.5 7.6 125
DEER PARK 9700 6.6 6.5 102 8.4 10.5 80
LAPRELE CREEK 8375 3.0 5.1 59 4.3 6.0 72
RENO HILL 8500 5.9 6.4 92 7.5 7.0 107
ROACH 9700 7.5 7.0 107 10.5 8.2 128
SAND LAKE 10050 15.7 14.4 109 15.8 11.2 141
SOUTH PASS 9040 6.2 8.0 78 7.4 8.9 83
WINDY PEAK 7900 2.2 3.4 65 4.1 5.3 77
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Basin wide percent of average 96 104
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.0 3.8 158 9.0 6.8 132
DIVIDE PEAK 8860 8.1 8.8 92 11.5 9.6 120
OLD BATTLE 9920 16.6 14.1 118 20.6 15.4 134
SANDSTONE RS 8150 6.3 5.0 126 11.5 8.6 134
WHISKEY PARK 8950 14.1 10.6 133 17.0 12.7 134
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Basin wide percent of average 121 131
UPPER GREEN RIVER
BIG SANDY OPENING 9080 5.4 6.6 82 6.2 6.4 97
BLIND BULL SUM 8900 11.1 12.6 88 9.5 10.6 90
EAST RIM DIVIDE 7930 4.6 5.7 81 5.3 5.6 95
ELKHART PARK G.S. 9400 5.9 6.0 98 6.8 6.5 105
GROS VENTRE SUMMIT 8750 6.1 6.6 92 6.9 6.2 111
KENDALL R.S. 7740 6.4 6.4 100 7.4 6.6 112
LOOMIS PARK 8240 8.0 7.7 104 8.8 8.0 110
NEW FORK LAKE 8340 4.7 5.2 90 5.1 5.7 89
SNIDER BASIN 8060 7.1 6.6 108 7.2 7.6 95
SPRING CREEK DIVIDE 9000 12.1 12.0 101 12.2 12.4 98
TRIPLE PEAK 8500 11.6 11.4 102 13.1 10.7 122
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Basin wide percent of average 96 103
LOWER GREEN RIVER
HAMS FORK 7840 5.1 5.2 98 5.5 5.6 98
HEWINTA 9500 4.9 3.9 126 7.3 6.8 107
HICKERSON PARK 9100 1.3 2.8 46 3.5 4.1 85
HOLE-IN-ROCK 9150 3.7 2.6 142 4.1 3.8 108
INDIAN CREEK 9425 11.6 12.0 97 10.8 11.7 92
KELLEY R.S. 8180 -M 7.3 * -M 9.7 *
STEEL CREEK PARK 10100 6.6 6.4 103 8.0 7.4 108
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Basin wide percent of average 101 99
UPPER BEAR RIVER
BUG LAKE 7950 8.2 7.9 104 9.0 8.9 101
HAYDEN FORK 9100 8.0 6.0 133 10.7 9.6 111
KELLEY R.S. 8180 -M 7.3 * -M 9.7 *
LILY LAKE 9050 5.9 5.2 113 7.3 8.3 88
MONTE CRISTO 8960 11.6 10.4 112 12.6 11.6 109
SALT RIVER SUMMIT 7600 5.9 5.1 116 8.0 8.6 93
TRIAL LAKE 9960 11.9 10.0 119 12.3 10.8 114
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Basin wide percent of average 115 104
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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.