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 TUESDAY: FEBRUARY 12 , 2008
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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 14.1 14.1 100 20.7 16.3 127
COTTONWOOD CREEK 7670 17.7 15.6 113 19.8 20.2 98
GRAND TARGHEE 9260 36.1 -M * 25.0 -M *
GRANITE CREEK 6770 13.3 13.8 96 18.9 15.1 125
GRASSY LAKE 7265 23.7 25.6 93 31.4 27.3 115
GROS VENTRE SUMMIT 8750 10.5 10.2 103 11.6 9.4 123
GUNSIGHT PASS 9820 10.0 -M * 11.4 -M *
LEWIS LAKE DIVIDE 7850 24.5 25.7 95 29.1 27.3 107
PHILLIPS BENCH 8200 23.4 20.6 114 26.7 21.4 125
SALT RIVER SUMMIT 7760 10.1 10.5 96 12.2 13.8 88
SNAKE RIVER STATION 6920 13.0 14.2 92 21.1 17.1 123
SPRING CREEK DIVIDE 9000 17.4 19.2 91 17.8 19.9 89
THUMB DIVIDE 7980 12.6 13.1 96 15.2 13.9 109
TOGWOTEE PASS 9580 21.0 18.4 114 22.8 18.2 125
TWO OCEAN PLATEAU 9240 27.5 20.7 133 22.1 20.3 109
WILLOW CREEK 8380 23.0 22.2 104 28.6 23.7 121
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Basin wide percent of average 103 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 19.7 17.6 112 18.5 15.1 123
BLACK BEAR 8170 35.7 28.0 128 32.8 28.7 114
CANYON 7870 13.2 9.8 135 16.5 11.6 142
FISHER CREEK 9100 33.0 25.8 128 30.1 26.8 112
MADISON PLATEAU 7750 22.9 17.7 129 25.8 19.2 134
NORTHEAST ENTRANCE 7350 7.0 8.5 82 10.5 9.6 109
PARKER PEAK 9400 19.3 15.9 121 18.3 12.1 151
SYLVAN LAKE 8420 15.6 16.2 96 20.1 16.0 126
THUMB DIVIDE 7980 12.6 13.1 96 15.2 13.9 109
TWO OCEAN PLATEAU 9240 27.5 20.7 133 22.1 20.3 109
WHISKEY CREEK 6800 14.6 12.2 120 20.7 15.1 137
WHITE MILL 8700 20.7 17.6 118 21.4 19.9 108
WOLVERINE 7650 7.8 9.3 84 10.3 9.9 104
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Basin wide percent of average 118 120
WIND RIVER
BURROUGHS CREEK 8750 12.5 10.9 115 15.3 12.2 125
COLD SPRINGS 9630 5.0 6.3 79 8.0 7.6 105
DEER PARK 9700 10.1 13.1 77 14.6 15.9 92
HOBBS PARK 10100 9.0 10.3 87 9.8 8.8 111
LITTLE WARM 9370 7.5 8.3 90 10.7 9.8 109
SOUTH PASS 9040 9.2 12.0 77 12.0 13.4 90
ST. LAWRENCE ALT 8620 4.2 5.1 82 5.9 6.2 95
TOGWOTEE PASS 9580 21.0 18.4 114 22.8 18.2 125
TOWNSEND CREEK 8700 4.9 6.0 82 8.0 7.9 101
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Basin wide percent of average 92 107
BIGHORN BASIN
BALD MTN. 9380 11.6 14.2 82 11.6 12.6 92
BEAR TRAP MEADOW 8200 5.9 3.8 155 6.5 5.8 112
BLACKWATER 9780 19.1 17.7 108 17.9 15.3 117
BONE SPRINGS DIV 9350 11.8 11.4 104 13.6 10.3 132
EVENING STAR 9200 22.6 21.7 104 25.2 19.2 131
GRAVE SPRINGS 8550 5.9 6.3 94 7.1 6.8 104
KIRWIN 9550 9.4 8.1 116 11.4 8.2 139
MARQUETTE 8760 2.8 6.2 45 6.7 6.7 100
MIDDLE POWDER 7760 6.6 7.9 84 6.4 8.7 74
OWL CREEK 8975 3.9 3.6 108 5.3 4.0 132
POWDER RIVER PASS 9480 8.7 7.7 113 10.7 8.9 120
SHELL CREEK 9580 11.8 10.5 112 11.7 9.9 118
SYLVAN LAKE 8420 15.6 16.2 96 20.1 16.0 126
SYLVAN ROAD 7120 8.4 9.7 87 17.0 14.2 120
TIMBER CREEK 7950 2.1 3.9 54 6.2 4.8 129
YOUNTS PEAK 8350 13.5 12.8 105 14.8 12.2 121
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Basin wide percent of average 99 117
SHOSHONE RIVER
BLACKWATER 9780 19.1 17.7 108 17.9 15.3 117
EVENING STAR 9200 22.6 21.7 104 25.2 19.2 131
KIRWIN 9550 9.4 8.1 116 11.4 8.2 139
MARQUETTE 8760 2.8 6.2 45 6.7 6.7 100
SYLVAN LAKE 8420 15.6 16.2 96 20.1 16.0 126
SYLVAN ROAD 7120 8.4 9.7 87 17.0 14.2 120
YOUNTS PEAK 8350 13.5 12.8 105 14.8 12.2 121
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Basin wide percent of average 99 123
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.9 3.8 155 6.5 5.8 112
BIG GOOSE 7990 5.5 6.6 83 8.5 6.1 139
BONE SPRINGS DIV 9350 11.8 11.4 104 13.6 10.3 132
BURGESS JUNCTION 7880 7.7 7.9 97 9.5 8.5 112
CLOUD PEAK RESERVOIR 9860 10.4 8.7 120 11.2 8.8 127
DOME LAKE 8880 7.3 8.6 85 10.6 9.3 114
GRAVE SPRINGS 8550 5.9 6.3 94 7.1 6.8 104
HANSEN SAWMILL 8360 4.7 4.5 104 7.0 5.7 123
MIDDLE POWDER 7760 6.6 7.9 84 6.4 8.7 74
POWDER RIVER PASS 9480 8.7 7.7 113 10.7 8.9 120
SUCKER CREEK 8880 8.9 7.9 113 10.9 9.4 116
TIE CREEK 6870 4.1 4.3 95 8.1 7.2 112
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Basin wide percent of average 102 115
BELLE FOURCHE
BLIND PARK 6890 4.9 5.8 84 7.6 8.3 92
COLE CANYON 5910 4.5 5.0 90 5.5 5.0 110
NORTH RAPID CREEK 6130 5.6 5.7 98 6.0 6.8 88
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Basin wide percent of average 91 95
UPPER N. PLATTE RIVER
COLUMBINE 9160 19.3 18.7 103 21.3 18.2 117
DIVIDE PEAK 8880 17.8 13.9 128 18.0 14.9 121
ELK RIVER 8700 18.7 13.8 136 18.3 14.0 131
JOE WRIGHT 10120 17.2 15.2 113 19.9 17.6 113
NORTH FRENCH CREEK 10130 22.2 19.9 112 22.0 17.8 124
OLD BATTLE 10000 24.9 22.3 112 29.6 24.6 120
SAGE CREEK BASIN 7850 13.6 8.1 168 15.2 8.6 177
SOUTH BRUSH CREEK 8440 8.8 8.3 106 12.5 11.8 106
TOWER 10500 32.8 33.0 99 -M 27.8 *
WEBBER SPRINGS 9250 19.2 17.9 107 22.7 19.5 116
WILLOW CREEK PASS 9540 12.0 8.3 145 12.1 9.1 133
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Basin wide percent of average 115 123
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 15.8 16.7 95 16.4 15.4 106
CASPER MTN. 7900 7.5 9.9 76 9.8 9.7 101
DEADMAN HILL 10220 12.4 11.5 108 12.8 11.5 111
DEER PARK 9700 10.1 13.1 77 14.6 15.9 92
LAPRELE CREEK 8375 -M 7.8 * -M 8.8 *
RENO HILL 8400 7.8 9.1 86 9.6 10.1 95
ROACH 9700 14.3 12.2 117 16.8 12.7 132
SAND LAKE 10050 19.8 21.7 91 19.9 17.1 116
SOUTH PASS 9040 9.2 12.0 77 12.0 13.4 90
WINDY PEAK 7900 5.2 5.1 102 6.8 7.5 91
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Basin wide percent of average 92 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 12.2 8.5 144 13.5 10.7 126
DIVIDE PEAK 8880 17.8 13.9 128 18.0 14.9 121
OLD BATTLE 10000 24.9 22.3 112 29.6 24.6 120
SANDSTONE RS 8150 13.8 10.8 128 17.1 13.7 125
WHISKEY PARK 8950 23.9 20.6 116 27.0 20.9 129
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Basin wide percent of average 122 124
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.1 10.5 96 10.4 9.9 105
BLIND BULL SUM 8650 18.6 20.1 93 14.5 16.7 87
EAST RIM DIVIDE 7930 6.9 9.5 73 9.0 8.8 102
ELKHART PARK G.S. 9400 8.9 9.7 92 9.7 9.6 101
GROS VENTRE SUMMIT 8750 10.5 10.2 103 11.6 9.4 123
GUNSIGHT PASS 9820 10.0 -M * 11.4 -M *
KENDALL R.S. 7740 9.3 10.8 86 11.1 10.7 104
LOOMIS PARK 8240 12.3 12.4 99 14.0 12.9 109
NEW FORK LAKE 8340 7.7 8.4 92 7.9 8.5 93
SNIDER BASIN 8060 9.9 10.8 92 11.0 12.1 91
SPRING CREEK DIVIDE 9000 17.4 19.2 91 17.8 19.9 89
TRIPLE PEAK 8500 17.8 18.2 98 20.9 17.8 117
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Basin wide percent of average 93 101
LOWER GREEN RIVER
HAMS FORK 7840 8.9 9.3 96 7.7 9.1 85
HEWINTA 9519 8.3 7.6 109 12.9 10.1 128
HICKERSON PARK 9145 4.2 5.0 84 6.9 5.5 125
HOLE-IN-ROCK 9150 3.8 4.7 81 7.0 5.1 137
INDIAN CREEK 9425 17.2 19.3 89 13.4 18.4 73
KELLEY R.S. 8180 -M 11.9 * -M 15.1 *
STEEL CREEK PARK 10200 10.2 10.6 96 14.0 11.1 126
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Basin wide percent of average 93 104
UPPER BEAR RIVER
BUG LAKE 7950 13.0 14.7 88 12.9 14.1 91
HAYDEN FORK 9212 14.0 11.1 126 17.9 14.9 120
KELLEY R.S. 8180 -M 11.9 * -M 15.1 *
LILY LAKE 9156 10.8 9.2 117 13.7 12.5 110
MONTE CRISTO 8960 21.1 20.7 102 20.7 18.3 113
SALT RIVER SUMMIT 7760 10.1 10.5 96 12.2 13.8 88
TRIAL LAKE 9992 15.4 17.5 88 18.7 17.5 107
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Basin wide percent of average 101 105
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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 1961-90.
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.