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 MONDAY: FEBRUARY 13 , 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 17.2 14.2 121 21.3 16.5 129
COTTONWOOD CREEK 7600 23.0 15.7 146 25.6 20.5 125
GRANITE CREEK 6770 17.3 13.9 124 19.7 15.3 129
GRASSY LAKE 7265 29.7 25.7 116 33.9 27.6 123
GROS VENTRE SUMMIT 8750 9.3 10.3 90 10.1 9.6 105
LEWIS LAKE DIVIDE 7850 32.9 25.9 127 32.7 27.7 118
PHILLIPS BENCH 8200 25.2 20.7 122 26.4 21.7 122
SALT RIVER SUMMIT 7600 12.5 10.6 118 15.4 14.0 110
SNAKE RIVER STATION 6920 16.8 14.3 117 21.8 17.3 126
SPRING CREEK DIVIDE 9000 25.8 19.4 133 -M 20.1 *
THUMB DIVIDE 7980 14.2 13.3 107 15.0 14.1 106
TOGWOTEE PASS 9580 19.3 18.5 104 20.6 18.5 111
TWO OCEAN PLATEAU 9240 28.9 20.8 139 23.2 20.6 113
WILLOW CREEK 8450 27.3 22.3 122 31.5 24.0 131
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Basin wide percent of average 122 120
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.6 17.9 98 15.3 15.3 100
BLACK BEAR 8170 39.2 28.6 137 -M 29.2 *
CANYON 8090 11.7 9.9 118 14.3 11.7 122
FISHER CREEK 9100 31.7 26.2 121 30.0 27.2 110
MADISON PLATEAU 7750 21.2 18.2 116 24.9 19.5 128
NORTHEAST ENTRANCE 7350 7.8 8.6 91 10.1 9.7 104
PARKER PEAK 9400 14.6 16.2 90 13.7 12.2 112
SYLVAN LAKE 8420 13.5 16.5 82 17.7 16.1 110
THUMB DIVIDE 7980 14.2 13.3 107 15.0 14.1 106
TWO OCEAN PLATEAU 9240 28.9 20.8 139 23.2 20.6 113
WHISKEY CREEK 6800 12.5 12.5 100 18.9 15.3 124
WHITE MILL 8700 20.1 17.8 113 18.6 20.2 92
WOLVERINE 7650 8.2 9.5 86 7.3 10.1 72
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Basin wide percent of average 112 109
WIND RIVER
BURROUGHS CREEK 8750 10.8 11.1 97 13.1 12.3 107
COLD SPRINGS 9630 3.6 6.3 57 6.2 7.7 81
DEER PARK 9700 12.9 13.4 96 16.0 15.9 101
HOBBS PARK 10100 7.4 10.6 70 8.0 8.9 90
LITTLE WARM 9370 6.6 8.4 79 9.1 9.9 92
SOUTH PASS 9040 12.3 12.3 100 13.3 13.4 99
ST. LAWRENCE ALT 8620 1.6 5.1 31 4.1 6.3 65
TOGWOTEE PASS 9580 19.3 18.5 104 20.6 18.5 111
TOWNSEND CREEK 8700 4.0 6.2 65 6.7 8.0 84
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Basin wide percent of average 85 96
BIGHORN BASIN
BALD MTN. 9380 11.2 14.4 78 8.8 12.8 69
BEAR TRAP MEADOW 8200 4.2 3.8 111 5.9 5.9 100
BLACKWATER 9780 17.0 18.1 94 15.5 15.5 100
BONE SPRINGS DIV 9350 9.5 11.5 83 9.6 10.5 91
EVENING STAR 9200 19.6 21.9 89 21.8 19.4 112
GRAVE SPRINGS 8550 7.2 6.4 112 9.1 7.0 130
KIRWIN 9550 7.6 8.2 93 8.2 8.3 99
MARQUETTE 8760 1.4 6.2 23 5.7 6.8 84
MIDDLE POWDER 7760 9.6 8.0 120 8.2 8.9 92
OWL CREEK 8975 1.7 3.7 46 3.9 4.0 98
POWDER RIVER PASS 9480 7.1 7.8 91 8.7 9.0 97
SHELL CREEK 9580 9.6 10.6 91 8.9 9.9 90
SYLVAN LAKE 8420 13.5 16.5 82 17.7 16.1 110
SYLVAN ROAD 7120 8.5 10.0 85 13.3 14.3 93
TIMBER CREEK 7950 1.0 3.9 26 3.5 4.9 71
YOUNTS PEAK 8350 -M 13.0 * 14.2 12.3 115
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Basin wide percent of average 85 98
SHOSHONE RIVER
BLACKWATER 9780 17.0 18.1 94 15.5 15.5 100
EVENING STAR 9200 19.6 21.9 89 21.8 19.4 112
KIRWIN 9550 7.6 8.2 93 8.2 8.3 99
MARQUETTE 8760 1.4 6.2 23 5.7 6.8 84
SYLVAN LAKE 8420 13.5 16.5 82 17.7 16.1 110
SYLVAN ROAD 7120 8.5 10.0 85 13.3 14.3 93
YOUNTS PEAK 8350 -M 13.0 * 14.2 12.3 115
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Basin wide percent of average 84 104
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.2 3.8 111 5.9 5.9 100
BIG GOOSE 7990 4.3 6.7 64 6.5 6.2 105
BONE SPRINGS DIV 9350 9.5 11.5 83 9.6 10.5 91
BURGESS JUNCTION 7880 7.0 8.0 88 8.4 8.6 98
CLOUD PEAK RESERVOIR 9860 9.3 8.8 106 8.7 8.9 98
DOME LAKE 8880 7.5 8.6 87 8.2 9.3 88
GRAVE SPRINGS 8550 7.2 6.4 112 9.1 7.0 130
HANSEN SAWMILL 8360 2.4 4.5 53 4.4 5.7 77
MIDDLE POWDER 7760 9.6 8.0 120 8.2 8.9 92
POWDER RIVER PASS 9480 7.1 7.8 91 8.7 9.0 97
SUCKER CREEK 8880 7.6 8.0 95 10.2 9.5 107
TIE CREEK 6870 3.7 4.4 84 7.7 7.3 105
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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 3.9 4.4 89 6.7 -M *
NORTH RAPID CREEK 6130 5.5 5.8 95 6.7 6.8 99
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Basin wide percent of average 96 100
UPPER N. PLATTE RIVER
COLUMBINE 9160 25.7 18.9 136 27.8 18.5 150
DIVIDE PEAK 8860 13.7 13.9 99 16.8 15.1 111
ELK RIVER 8700 15.9 13.9 114 16.9 14.2 119
JOE WRIGHT 10120 17.4 15.3 114 21.4 17.9 120
NORTH FRENCH CREEK 10130 27.1 20.0 136 26.3 18.0 146
OLD BATTLE 9920 -M 22.6 * -M 25.0 *
SAGE CREEK BASIN 7850 9.2 8.1 114 11.8 8.8 134
SOUTH BRUSH CREEK 8440 9.7 8.4 115 13.5 11.9 113
TOWER 10500 41.9 33.3 126 31.0 28.2 110
WEBBER SPRINGS 9250 21.2 18.1 117 26.6 19.8 134
WILLOW CREEK PASS 9540 9.1 8.4 108 10.6 9.2 115
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Basin wide percent of average 121 125
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 19.3 16.8 115 16.1 15.7 103
CASPER MTN. 7850 12.4 9.9 125 13.7 9.8 140
DEADMAN HILL 10220 11.9 11.5 103 13.4 11.8 114
DEER PARK 9700 12.9 13.4 96 16.0 15.9 101
LAPRELE CREEK 8375 7.0 7.9 89 7.9 8.9 89
RENO HILL 8500 11.8 9.2 128 13.3 10.2 130
ROACH 9700 11.9 12.3 97 14.8 13.1 113
SAND LAKE 10050 25.0 21.9 114 23.8 17.4 137
SOUTH PASS 9040 12.3 12.3 100 13.3 13.4 99
WINDY PEAK 7900 4.3 5.2 83 6.3 7.6 83
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Basin wide percent of average 107 112
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.8 8.6 126 12.9 10.9 118
DIVIDE PEAK 8860 13.7 13.9 99 16.8 15.1 111
OLD BATTLE 9920 -M 22.6 * -M 25.0 *
SANDSTONE RS 8150 12.0 10.9 110 17.3 13.9 124
WHISKEY PARK 8950 29.3 20.7 142 29.3 21.1 139
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Basin wide percent of average 122 125
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.6 10.6 109 12.1 10.0 121
BLIND BULL SUM 8900 22.6 20.3 111 17.4 17.0 102
EAST RIM DIVIDE 7930 8.6 9.5 91 9.2 9.0 102
ELKHART PARK G.S. 9400 10.6 9.7 109 11.4 9.8 116
GROS VENTRE SUMMIT 8750 9.3 10.3 90 10.1 9.6 105
KENDALL R.S. 7740 11.3 10.8 105 12.3 10.9 113
LOOMIS PARK 8240 14.8 12.5 118 15.5 13.1 118
NEW FORK LAKE 8340 8.2 8.5 96 8.2 8.6 95
SNIDER BASIN 8060 14.3 10.9 131 13.9 12.2 114
SPRING CREEK DIVIDE 9000 25.8 19.4 133 -M 20.1 *
TRIPLE PEAK 8500 24.6 18.3 134 25.2 18.1 139
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Basin wide percent of average 115 114
LOWER GREEN RIVER
HAMS FORK 7840 12.0 9.4 128 11.1 9.3 119
HEWINTA 9500 8.8 7.6 116 11.8 10.3 115
HICKERSON PARK 9100 2.9 5.0 58 5.2 5.6 93
HOLE-IN-ROCK 9150 5.3 4.8 110 6.0 5.2 115
INDIAN CREEK 9425 24.8 19.4 128 -M 18.6 *
KELLEY R.S. 8180 16.3 12.0 136 17.9 15.3 117
STEEL CREEK PARK 10100 11.9 10.7 111 13.4 11.3 119
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Basin wide percent of average 119 115
UPPER BEAR RIVER
BUG LAKE 7950 19.6 14.8 132 17.6 14.3 123
HAYDEN FORK 9100 16.0 11.2 143 19.4 15.1 128
KELLEY R.S. 8180 16.3 12.0 136 17.9 15.3 117
LILY LAKE 9050 11.4 9.3 123 12.8 12.7 101
MONTE CRISTO 8960 25.1 20.9 120 24.9 18.6 134
SALT RIVER SUMMIT 7600 12.5 10.6 118 15.4 14.0 110
TRIAL LAKE 9960 23.1 17.7 131 22.7 17.8 128
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Basin wide percent of average 128 121
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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.