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: FEBRUARY 12 , 2006
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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 17.1 14.0 122 21.2 16.4 129
COTTONWOOD CREEK 7600 23.0 15.6 147 25.6 20.4 125
GRANITE CREEK 6770 17.2 13.8 125 19.6 15.2 129
GRASSY LAKE 7265 29.7 25.5 116 33.8 27.4 123
GROS VENTRE SUMMIT 8750 9.3 10.2 91 10.2 9.5 107
LEWIS LAKE DIVIDE 7850 32.8 25.7 128 32.6 27.5 119
PHILLIPS BENCH 8200 25.1 20.5 122 26.3 21.5 122
SALT RIVER SUMMIT 7600 12.5 10.5 119 15.3 13.9 110
SNAKE RIVER STATION 6920 16.6 14.2 117 21.8 17.1 127
SPRING CREEK DIVIDE 9000 25.7 19.2 134 -M 19.9 *
THUMB DIVIDE 7980 14.1 13.1 108 14.9 14.0 106
TOGWOTEE PASS 9580 19.3 18.4 105 20.4 18.3 111
TWO OCEAN PLATEAU 9240 28.7 20.7 139 23.1 20.4 113
WILLOW CREEK 8450 27.3 22.2 123 31.4 23.8 132
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Basin wide percent of average 122 121
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.4 17.8 98 15.2 15.2 100
BLACK BEAR 8170 39.1 28.4 138 -M 28.9 *
CANYON 8090 11.7 9.8 119 14.3 11.7 122
FISHER CREEK 9100 31.7 26.0 122 29.9 27.0 111
MADISON PLATEAU 7750 21.1 18.0 117 24.8 19.3 128
NORTHEAST ENTRANCE 7350 7.7 8.6 90 10.0 9.6 104
PARKER PEAK 9400 14.6 16.1 91 13.5 12.1 112
SYLVAN LAKE 8420 13.4 16.4 82 17.6 16.0 110
THUMB DIVIDE 7980 14.1 13.1 108 14.9 14.0 106
TWO OCEAN PLATEAU 9240 28.7 20.7 139 23.1 20.4 113
WHISKEY CREEK 6800 12.5 12.4 101 18.9 15.2 124
WHITE MILL 8700 20.1 17.7 114 18.5 20.0 92
WOLVERINE 7650 8.1 9.5 85 7.2 10.0 72
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Basin wide percent of average 112 109
WIND RIVER
BURROUGHS CREEK 8750 10.7 11.0 97 12.9 12.2 106
COLD SPRINGS 9630 3.5 6.3 56 6.2 7.6 82
DEER PARK 9700 12.7 13.3 95 16.0 15.8 101
HOBBS PARK 10100 7.3 10.5 70 7.9 8.9 89
LITTLE WARM 9370 6.5 8.3 78 9.0 9.8 92
SOUTH PASS 9040 12.2 12.3 99 13.3 13.3 100
ST. LAWRENCE ALT 8620 1.5 5.1 29 4.0 6.2 65
TOGWOTEE PASS 9580 19.3 18.4 105 20.4 18.3 111
TOWNSEND CREEK 8700 3.8 6.1 62 6.7 7.9 85
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Basin wide percent of average 85 96
BIGHORN BASIN
BALD MTN. 9380 11.2 14.3 78 8.8 12.7 69
BEAR TRAP MEADOW 8200 4.1 3.8 108 5.8 5.9 98
BLACKWATER 9780 16.9 17.9 94 15.4 15.4 100
BONE SPRINGS DIV 9350 9.5 11.5 83 9.5 10.4 91
EVENING STAR 9200 19.6 21.7 90 21.8 19.2 114
GRAVE SPRINGS 8550 7.2 6.3 114 9.1 7.0 130
KIRWIN 9550 7.5 8.2 91 8.1 8.2 99
MARQUETTE 8760 1.4 6.2 23 5.6 6.7 84
MIDDLE POWDER 7760 9.5 7.9 120 8.2 8.8 93
OWL CREEK 8975 1.6 3.6 44 3.7 4.0 92
POWDER RIVER PASS 9480 7.1 7.8 91 8.6 9.0 96
SHELL CREEK 9580 9.5 10.5 90 8.9 9.9 90
SYLVAN LAKE 8420 13.4 16.4 82 17.6 16.0 110
SYLVAN ROAD 7120 8.3 9.9 84 13.2 14.2 93
TIMBER CREEK 7950 1.0 3.8 26 3.5 4.9 71
YOUNTS PEAK 8350 -M 12.9 * 14.2 12.3 115
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Basin wide percent of average 85 98
SHOSHONE RIVER
BLACKWATER 9780 16.9 17.9 94 15.4 15.4 100
EVENING STAR 9200 19.6 21.7 90 21.8 19.2 114
KIRWIN 9550 7.5 8.2 91 8.1 8.2 99
MARQUETTE 8760 1.4 6.2 23 5.6 6.7 84
SYLVAN LAKE 8420 13.4 16.4 82 17.6 16.0 110
SYLVAN ROAD 7120 8.3 9.9 84 13.2 14.2 93
YOUNTS PEAK 8350 -M 12.9 * 14.2 12.3 115
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Basin wide percent of average 84 104
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.1 3.8 108 5.8 5.9 98
BIG GOOSE 7990 4.2 6.6 64 6.4 6.1 105
BONE SPRINGS DIV 9350 9.5 11.5 83 9.5 10.4 91
BURGESS JUNCTION 7880 7.0 7.9 89 8.4 8.5 99
CLOUD PEAK RESERVOIR 9860 9.3 8.7 107 8.6 8.8 98
DOME LAKE 8880 7.3 8.5 86 8.1 9.3 87
GRAVE SPRINGS 8550 7.2 6.3 114 9.1 7.0 130
HANSEN SAWMILL 8360 2.3 4.5 51 4.3 5.7 75
MIDDLE POWDER 7760 9.5 7.9 120 8.2 8.8 93
POWDER RIVER PASS 9480 7.1 7.8 91 8.6 9.0 96
SUCKER CREEK 8880 7.4 7.9 94 10.1 9.5 106
TIE CREEK 6870 3.7 4.4 84 7.7 7.2 107
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Basin wide percent of average 92 99
BELLE FOURCHE
BLIND PARK 6890 5.9 5.8 102 8.5 8.4 101
COLE CANYON 5910 3.8 4.4 86 6.7 -M *
NORTH RAPID CREEK 6130 5.2 5.7 91 6.6 6.8 97
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Basin wide percent of average 94 99
UPPER N. PLATTE RIVER
COLUMBINE 9160 25.7 18.7 137 25.3 18.3 138
DIVIDE PEAK 8860 13.6 13.9 98 16.6 15.0 111
ELK RIVER 8700 16.0 13.8 116 16.8 14.0 120
JOE WRIGHT 10120 17.4 15.2 114 21.3 17.8 120
NORTH FRENCH CREEK 10130 27.0 19.9 136 26.2 17.9 146
OLD BATTLE 9920 -M 22.4 * -M 24.8 *
SAGE CREEK BASIN 7850 9.2 8.0 115 11.8 8.7 136
SOUTH BRUSH CREEK 8440 9.7 8.3 117 13.4 11.8 114
TOWER 10500 -M 33.0 * -M 28.0 *
WEBBER SPRINGS 9250 21.1 17.9 118 26.6 19.6 136
WILLOW CREEK PASS 9540 8.9 8.3 107 10.5 9.1 115
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Basin wide percent of average 120 127
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 19.1 16.7 114 16.0 15.6 103
CASPER MTN. 7850 12.3 9.9 124 13.7 9.8 140
DEADMAN HILL 10220 11.8 11.5 103 13.4 11.7 115
DEER PARK 9700 12.7 13.3 95 16.0 15.8 101
LAPRELE CREEK 8375 6.9 7.8 88 7.9 8.8 90
RENO HILL 8500 11.8 9.1 130 13.3 10.2 130
ROACH 9700 11.8 12.2 97 14.7 13.0 113
SAND LAKE 10050 24.9 21.7 115 23.8 17.2 138
SOUTH PASS 9040 12.2 12.3 99 13.3 13.3 100
WINDY PEAK 7900 4.3 5.1 84 6.3 7.6 83
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Basin wide percent of average 107 113
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 11.0 8.5 129 12.7 10.8 118
DIVIDE PEAK 8860 13.6 13.9 98 16.6 15.0 111
OLD BATTLE 9920 -M 22.4 * -M 24.8 *
SANDSTONE RS 8150 11.9 10.8 110 17.3 13.8 125
WHISKEY PARK 8950 29.2 20.5 142 29.2 21.0 139
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Basin wide percent of average 122 125
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.6 10.5 110 11.9 9.9 120
BLIND BULL SUM 8900 22.5 20.1 112 17.3 16.9 102
EAST RIM DIVIDE 7930 8.5 9.4 90 9.2 8.9 103
ELKHART PARK G.S. 9400 10.5 9.7 108 11.4 9.7 118
GROS VENTRE SUMMIT 8750 9.3 10.2 91 10.2 9.5 107
KENDALL R.S. 7740 11.3 10.7 106 12.3 10.8 114
LOOMIS PARK 8240 14.8 12.4 119 15.4 13.0 118
NEW FORK LAKE 8340 8.2 8.4 98 8.3 8.6 97
SNIDER BASIN 8060 14.3 10.8 132 13.9 12.1 115
SPRING CREEK DIVIDE 9000 25.7 19.2 134 -M 19.9 *
TRIPLE PEAK 8500 24.5 18.2 135 25.1 18.0 139
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Basin wide percent of average 115 115
LOWER GREEN RIVER
HAMS FORK 7840 12.0 9.3 129 11.1 9.2 121
HEWINTA 9500 8.8 7.6 116 11.8 10.2 116
HICKERSON PARK 9100 2.9 4.9 59 5.1 5.6 91
HOLE-IN-ROCK 9150 5.4 4.7 115 6.0 5.2 115
INDIAN CREEK 9425 24.8 19.2 129 -M 18.5 *
KELLEY R.S. 8180 16.2 11.9 136 17.8 15.2 117
STEEL CREEK PARK 10100 11.8 10.6 111 13.3 11.2 119
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Basin wide percent of average 120 115
UPPER BEAR RIVER
BUG LAKE 7950 19.5 14.7 133 17.5 14.2 123
HAYDEN FORK 9100 16.1 11.1 145 19.4 15.0 129
KELLEY R.S. 8180 16.2 11.9 136 17.8 15.2 117
LILY LAKE 9050 11.4 9.2 124 12.8 12.6 102
MONTE CRISTO 8960 25.0 20.7 121 24.9 18.4 135
SALT RIVER SUMMIT 7600 12.5 10.5 119 15.3 13.9 110
TRIAL LAKE 9960 23.0 17.5 131 22.7 17.6 129
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Basin wide percent of average 129 122
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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.