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 WEDNESDAY: FEBRUARY 15 , 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 17.4 14.4 121 21.5 16.8 128
COTTONWOOD CREEK 7600 23.1 16.0 144 25.6 20.9 122
GRANITE CREEK 6770 17.5 14.2 123 19.7 15.5 127
GRASSY LAKE 7265 30.0 26.2 115 34.0 28.0 121
GROS VENTRE SUMMIT 8750 9.5 10.4 91 10.2 9.8 104
LEWIS LAKE DIVIDE 7850 33.3 26.4 126 32.8 28.2 116
PHILLIPS BENCH 8200 25.5 21.1 121 26.6 22.1 120
SALT RIVER SUMMIT 7600 12.6 10.8 117 15.5 14.2 109
SNAKE RIVER STATION 6920 17.0 14.6 116 21.9 17.6 124
SPRING CREEK DIVIDE 9000 25.9 19.7 131 -M 20.4 *
THUMB DIVIDE 7980 14.3 13.5 106 14.9 14.3 104
TOGWOTEE PASS 9580 19.7 18.8 105 20.7 18.8 110
TWO OCEAN PLATEAU 9240 29.3 21.1 139 23.3 20.9 111
WILLOW CREEK 8450 27.5 22.7 121 31.7 24.4 130
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Basin wide percent of average 121 119
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 17.6 18.2 97 15.3 15.6 98
BLACK BEAR 8170 39.5 29.1 136 -M 29.7 *
CANYON 8090 11.8 10.1 117 14.3 11.9 120
FISHER CREEK 9100 32.2 26.6 121 29.9 27.6 108
MADISON PLATEAU 7750 21.3 18.5 115 24.9 19.8 126
NORTHEAST ENTRANCE 7350 8.0 8.8 91 10.2 9.9 103
PARKER PEAK 9400 14.9 16.4 91 13.7 12.4 110
SYLVAN LAKE 8420 13.7 16.7 82 17.3 16.4 105
THUMB DIVIDE 7980 14.3 13.5 106 14.9 14.3 104
TWO OCEAN PLATEAU 9240 29.3 21.1 139 23.3 20.9 111
WHISKEY CREEK 6800 12.6 12.7 99 18.9 15.6 121
WHITE MILL 8700 20.4 18.1 113 18.5 20.5 90
WOLVERINE 7650 8.7 9.7 90 7.3 10.2 72
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Basin wide percent of average 111 107
WIND RIVER
BURROUGHS CREEK 8750 11.0 11.3 97 13.0 12.5 104
COLD SPRINGS 9630 3.6 6.4 56 6.3 7.8 81
DEER PARK 9700 13.0 13.7 95 15.9 16.1 99
HOBBS PARK 10100 7.6 10.7 71 8.3 9.1 91
LITTLE WARM 9370 6.6 8.5 78 9.0 10.0 90
SOUTH PASS 9040 12.4 12.5 99 13.2 13.6 97
ST. LAWRENCE ALT 8620 1.8 5.2 35 4.4 6.3 70
TOGWOTEE PASS 9580 19.7 18.8 105 20.7 18.8 110
TOWNSEND CREEK 8700 4.2 6.3 67 6.9 8.1 85
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Basin wide percent of average 86 96
BIGHORN BASIN
BALD MTN. 9380 11.6 14.5 80 8.9 12.9 69
BEAR TRAP MEADOW 8200 4.2 3.9 108 6.1 6.0 102
BLACKWATER 9780 17.4 18.3 95 15.7 15.7 100
BONE SPRINGS DIV 9350 9.8 11.7 84 9.7 10.6 92
EVENING STAR 9200 20.0 22.3 90 22.0 19.7 112
GRAVE SPRINGS 8550 7.3 6.5 112 9.3 7.1 131
KIRWIN 9550 7.7 8.3 93 8.3 8.4 99
MARQUETTE 8760 1.4 6.3 22 5.6 6.8 82
MIDDLE POWDER 7760 9.9 8.1 122 8.4 8.9 94
OWL CREEK 8975 1.8 3.7 49 3.8 4.1 93
POWDER RIVER PASS 9480 7.4 7.9 94 8.8 9.2 96
SHELL CREEK 9580 10.0 10.7 93 9.4 10.1 93
SYLVAN LAKE 8420 13.7 16.7 82 17.3 16.4 105
SYLVAN ROAD 7120 8.7 10.2 85 13.4 14.4 93
TIMBER CREEK 7950 1.3 3.9 33 3.8 5.0 76
YOUNTS PEAK 8350 11.6 13.2 88 14.3 12.5 114
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Basin wide percent of average 87 98
SHOSHONE RIVER
BLACKWATER 9780 17.4 18.3 95 15.7 15.7 100
EVENING STAR 9200 20.0 22.3 90 22.0 19.7 112
KIRWIN 9550 7.7 8.3 93 8.3 8.4 99
MARQUETTE 8760 1.4 6.3 22 5.6 6.8 82
SYLVAN LAKE 8420 13.7 16.7 82 17.3 16.4 105
SYLVAN ROAD 7120 8.7 10.2 85 13.4 14.4 93
YOUNTS PEAK 8350 11.6 13.2 88 14.3 12.5 114
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Basin wide percent of average 84 103
POWDER-TONGUE
BEAR TRAP MEADOW 8200 4.2 3.9 108 6.1 6.0 102
BIG GOOSE 7990 4.5 6.8 66 6.6 6.2 106
BONE SPRINGS DIV 9350 9.8 11.7 84 9.7 10.6 92
BURGESS JUNCTION 7880 7.2 8.1 89 8.5 8.7 98
CLOUD PEAK RESERVOIR 9860 9.7 8.9 109 8.8 9.0 98
DOME LAKE 8880 7.7 8.7 89 8.5 9.4 90
GRAVE SPRINGS 8550 7.3 6.5 112 9.3 7.1 131
HANSEN SAWMILL 8360 2.6 4.6 57 4.5 5.8 78
MIDDLE POWDER 7760 9.9 8.1 122 8.4 8.9 94
POWDER RIVER PASS 9480 7.4 7.9 94 8.8 9.2 96
SUCKER CREEK 8880 7.8 8.1 96 10.4 9.7 107
TIE CREEK 6870 3.8 4.5 84 7.8 7.3 107
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Basin wide percent of average 93 99
BELLE FOURCHE
BLIND PARK 6890 6.0 5.9 102 8.5 8.6 99
COLE CANYON 5910 3.9 4.5 87 6.8 -M *
NORTH RAPID CREEK 6130 5.1 5.9 86 6.5 6.9 94
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Basin wide percent of average 92 97
UPPER N. PLATTE RIVER
COLUMBINE 9160 25.9 19.3 134 28.2 18.8 150
DIVIDE PEAK 8860 13.8 14.1 98 16.7 15.3 109
ELK RIVER 8700 16.0 14.2 113 17.0 14.4 118
JOE WRIGHT 10120 17.4 15.5 112 21.4 18.2 118
NORTH FRENCH CREEK 10130 27.3 20.3 134 26.4 18.3 144
OLD BATTLE 9920 29.4 23.0 128 33.5 25.4 132
SAGE CREEK BASIN 7850 9.3 8.2 113 11.8 8.9 133
SOUTH BRUSH CREEK 8440 9.6 8.6 112 13.6 12.1 112
TOWER 10500 42.2 33.8 125 -M 28.6 *
WEBBER SPRINGS 9250 21.2 18.4 115 26.6 20.1 132
WILLOW CREEK PASS 9540 9.5 8.5 112 10.8 9.4 115
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Basin wide percent of average 121 128
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 19.4 17.1 113 16.2 15.9 102
CASPER MTN. 7850 12.5 10.1 124 13.8 10.0 138
DEADMAN HILL 10220 12.1 11.7 103 13.5 11.9 113
DEER PARK 9700 13.0 13.7 95 15.9 16.1 99
LAPRELE CREEK 8375 7.1 8.0 89 8.0 9.1 88
RENO HILL 8500 11.9 9.3 128 13.4 10.4 129
ROACH 9700 11.9 12.5 95 14.9 13.3 112
SAND LAKE 10050 25.2 22.2 114 24.0 17.6 136
SOUTH PASS 9040 12.4 12.5 99 13.2 13.6 97
WINDY PEAK 7900 4.4 5.3 83 6.5 7.8 83
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Basin wide percent of average 106 111
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 10.2 8.7 117 13.0 11.1 117
DIVIDE PEAK 8860 13.8 14.1 98 16.7 15.3 109
OLD BATTLE 9920 29.4 23.0 128 33.5 25.4 132
SANDSTONE RS 8150 12.1 11.1 109 17.3 14.1 123
WHISKEY PARK 8950 29.4 21.1 139 29.5 21.4 138
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Basin wide percent of average 122 126
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.8 10.8 109 12.2 10.2 120
BLIND BULL SUM 8900 22.8 20.6 111 17.5 17.2 102
EAST RIM DIVIDE 7930 8.6 9.7 89 9.2 9.1 101
ELKHART PARK G.S. 9400 10.7 9.9 108 11.5 9.9 116
GROS VENTRE SUMMIT 8750 9.5 10.4 91 10.2 9.8 104
KENDALL R.S. 7740 11.5 11.0 105 12.4 11.1 112
LOOMIS PARK 8240 14.9 12.7 117 15.6 13.3 117
NEW FORK LAKE 8340 8.3 8.6 97 8.3 8.8 94
SNIDER BASIN 8060 14.3 11.1 129 14.0 12.4 113
SPRING CREEK DIVIDE 9000 25.9 19.7 131 -M 20.4 *
TRIPLE PEAK 8500 24.7 18.6 133 25.3 18.4 138
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Basin wide percent of average 114 113
LOWER GREEN RIVER
HAMS FORK 7840 12.2 9.6 127 11.2 9.4 119
HEWINTA 9500 8.8 7.8 113 11.8 10.4 113
HICKERSON PARK 9100 3.0 5.1 59 5.2 5.7 91
HOLE-IN-ROCK 9150 5.2 4.9 106 6.0 5.3 113
INDIAN CREEK 9425 25.0 19.7 127 -M 19.0 *
KELLEY R.S. 8180 16.4 12.2 134 18.0 15.6 115
STEEL CREEK PARK 10100 12.0 10.9 110 13.4 11.5 117
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Basin wide percent of average 118 113
UPPER BEAR RIVER
BUG LAKE 7950 19.8 15.1 131 17.5 14.6 120
HAYDEN FORK 9100 16.0 11.4 140 19.4 15.4 126
KELLEY R.S. 8180 16.4 12.2 134 18.0 15.6 115
LILY LAKE 9050 11.3 9.5 119 12.8 12.9 99
MONTE CRISTO 8960 25.5 21.4 119 24.9 18.9 132
SALT RIVER SUMMIT 7600 12.6 10.8 117 15.5 14.2 109
TRIAL LAKE 9960 23.3 18.0 129 22.7 18.1 125
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Basin wide percent of average 127 119
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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.