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 FRIDAY: JANUARY 20 , 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 14.5 11.0 132 18.4 13.2 139
COTTONWOOD CREEK 7600 18.0 12.5 144 20.8 16.7 125
GRANITE CREEK 6770 14.3 10.6 135 16.8 12.1 139
GRASSY LAKE 7265 24.1 19.8 122 28.8 22.0 131
GROS VENTRE SUMMIT 8750 8.1 8.6 94 9.2 7.8 118
LEWIS LAKE DIVIDE 7850 27.4 19.9 138 28.2 22.0 128
PHILLIPS BENCH 8200 21.3 16.2 131 22.6 17.2 131
SALT RIVER SUMMIT 7600 10.5 7.7 136 13.0 11.2 116
SNAKE RIVER STATION 6920 13.8 10.7 129 18.6 13.8 135
SPRING CREEK DIVIDE 9000 21.1 15.5 136 17.1 16.2 106
THUMB DIVIDE 7980 12.3 10.2 121 13.5 11.3 119
TOGWOTEE PASS 9580 16.7 14.9 112 17.6 14.9 118
TWO OCEAN PLATEAU 9240 25.2 16.9 149 20.4 16.6 123
WILLOW CREEK 8450 21.7 17.9 121 26.1 19.4 135
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Basin wide percent of average 129 126
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 15.3 14.6 105 13.1 12.5 105
BLACK BEAR 8170 32.6 22.6 144 -M 22.8 *
CANYON 8090 9.9 7.9 125 12.3 9.6 128
FISHER CREEK 9100 26.5 21.3 124 -M 21.7 *
MADISON PLATEAU 7750 17.3 14.4 120 -M 15.5 *
NORTHEAST ENTRANCE 7350 6.2 6.8 91 8.6 7.9 109
PARKER PEAK 9400 12.8 13.2 97 12.0 10.0 120
SYLVAN LAKE 8420 11.7 13.4 87 15.7 13.3 118
THUMB DIVIDE 7980 12.3 10.2 121 13.5 11.3 119
TWO OCEAN PLATEAU 9240 25.2 16.9 149 20.4 16.6 123
WHISKEY CREEK 6800 10.2 9.8 104 15.8 12.3 128
WHITE MILL 8700 16.8 14.5 116 15.9 16.2 98
WOLVERINE 7650 6.4 7.6 84 5.9 8.3 71
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Basin wide percent of average 117 113
WIND RIVER
BURROUGHS CREEK 8750 8.9 9.0 99 10.9 10.0 109
COLD SPRINGS 9630 3.1 5.5 56 5.7 6.6 86
DEER PARK 9700 11.2 9.9 113 14.2 13.1 108
HOBBS PARK 10100 6.6 9.1 73 7.2 7.5 96
LITTLE WARM 9370 5.4 7.0 77 7.8 8.2 95
SOUTH PASS 9040 10.6 10.2 104 11.8 11.0 107
ST. LAWRENCE ALT 8620 1.4 4.4 32 3.9 5.3 74
TOGWOTEE PASS 9580 16.7 14.9 112 17.6 14.9 118
TOWNSEND CREEK 8700 3.3 5.2 63 6.4 6.8 94
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Basin wide percent of average 89 103
BIGHORN BASIN
BALD MTN. 9380 9.9 12.2 81 7.8 10.5 74
BEAR TRAP MEADOW 8200 3.5 3.1 113 5.4 5.1 106
BLACKWATER 9780 14.7 14.8 99 13.1 12.9 102
BONE SPRINGS DIV 9350 8.4 9.7 87 8.2 8.7 94
EVENING STAR 9200 16.6 17.7 94 18.7 15.8 118
GRAVE SPRINGS 8550 5.9 5.1 116 8.1 5.8 140
KIRWIN 9550 6.8 7.1 96 7.2 6.9 104
MARQUETTE 8760 1.1 5.5 20 5.3 5.9 90
MIDDLE POWDER 7760 8.3 6.6 126 7.3 7.7 95
OWL CREEK 8975 1.4 3.1 45 3.3 3.4 97
POWDER RIVER PASS 9480 6.0 6.5 92 7.4 7.4 100
SHELL CREEK 9580 8.0 9.0 89 7.6 8.3 92
SYLVAN LAKE 8420 11.7 13.4 87 15.7 13.3 118
SYLVAN ROAD 7120 7.3 8.0 91 11.8 12.1 98
TIMBER CREEK 7950 .8 3.4 24 3.3 4.2 79
YOUNTS PEAK 8350 -M 10.4 * 12.4 10.2 122
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Basin wide percent of average 88 103
SHOSHONE RIVER
BLACKWATER 9780 14.7 14.8 99 13.1 12.9 102
EVENING STAR 9200 16.6 17.7 94 18.7 15.8 118
KIRWIN 9550 6.8 7.1 96 7.2 6.9 104
MARQUETTE 8760 1.1 5.5 20 5.3 5.9 90
SYLVAN LAKE 8420 11.7 13.4 87 15.7 13.3 118
SYLVAN ROAD 7120 7.3 8.0 91 11.8 12.1 98
YOUNTS PEAK 8350 -M 10.4 * 12.4 10.2 122
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Basin wide percent of average 88 109
POWDER-TONGUE
BEAR TRAP MEADOW 8200 3.5 3.1 113 5.4 5.1 106
BIG GOOSE 7990 3.5 5.4 65 5.7 5.2 110
BONE SPRINGS DIV 9350 8.4 9.7 87 8.2 8.7 94
BURGESS JUNCTION 7880 6.0 6.7 90 7.4 7.2 103
CLOUD PEAK RESERVOIR 9860 7.7 7.3 105 7.3 7.5 97
DOME LAKE 8880 6.3 7.3 86 7.3 8.0 91
GRAVE SPRINGS 8550 5.9 5.1 116 8.1 5.8 140
HANSEN SAWMILL 8360 -M 3.8 * -M 4.9 *
MIDDLE POWDER 7760 8.3 6.6 126 7.3 7.7 95
POWDER RIVER PASS 9480 6.0 6.5 92 7.4 7.4 100
SUCKER CREEK 8880 6.4 6.5 98 8.9 8.0 111
TIE CREEK 6870 3.2 3.6 89 7.0 6.1 115
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Basin wide percent of average 96 104
BELLE FOURCHE
BLIND PARK 6890 4.6 4.7 98 7.0 7.2 97
COLE CANYON 5910 2.7 3.6 75 5.5 -M *
NORTH RAPID CREEK 6130 3.5 4.3 81 5.0 5.9 85
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Basin wide percent of average 86 92
UPPER N. PLATTE RIVER
COLUMBINE 9160 20.7 13.9 149 22.0 14.7 150
DIVIDE PEAK 8860 11.4 11.7 97 14.6 12.3 119
ELK RIVER 8700 12.8 10.3 124 14.5 11.2 129
JOE WRIGHT 10120 15.0 12.3 122 17.7 14.5 122
NORTH FRENCH CREEK 10130 22.6 16.6 136 22.7 14.7 154
OLD BATTLE 9920 24.5 17.9 137 28.1 19.9 141
SAGE CREEK BASIN 7850 7.1 6.7 106 9.9 7.1 139
SOUTH BRUSH CREEK 8440 8.4 6.5 129 12.1 9.7 125
TOWER 10500 34.9 26.4 132 -M 22.5 *
WEBBER SPRINGS 9250 -M 14.3 * -M 16.1 *
WILLOW CREEK PASS 9540 7.7 6.7 115 9.4 7.6 124
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Basin wide percent of average 128 135
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 15.6 13.6 115 13.0 12.7 102
CASPER MTN. 7850 9.7 8.2 118 11.9 8.2 145
DEADMAN HILL 10220 10.2 9.5 107 11.9 9.6 124
DEER PARK 9700 11.2 9.9 113 14.2 13.1 108
LAPRELE CREEK 8375 5.7 6.6 86 6.6 7.4 89
RENO HILL 8500 9.6 7.8 123 11.2 8.5 132
ROACH 9700 10.0 9.6 104 12.1 10.5 115
SAND LAKE 10050 21.4 18.0 119 20.7 14.2 146
SOUTH PASS 9040 10.6 10.2 104 11.8 11.0 107
WINDY PEAK 7900 3.5 4.1 85 5.5 6.4 86
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Basin wide percent of average 110 117
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 9.3 6.4 145 11.4 8.8 130
DIVIDE PEAK 8860 11.4 11.7 97 14.6 12.3 119
OLD BATTLE 9920 24.5 17.9 137 28.1 19.9 141
SANDSTONE RS 8150 9.5 8.0 119 15.1 11.1 136
WHISKEY PARK 8950 22.4 15.6 144 24.6 17.0 145
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Basin wide percent of average 129 136
UPPER GREEN RIVER
BIG SANDY OPENING 9080 10.0 8.5 118 10.5 8.1 130
BLIND BULL SUM 8900 17.1 16.5 104 14.8 13.7 108
EAST RIM DIVIDE 7930 7.1 7.5 95 7.8 7.2 108
ELKHART PARK G.S. 9400 9.1 7.8 117 9.9 8.0 124
GROS VENTRE SUMMIT 8750 8.1 8.6 94 9.2 7.8 118
KENDALL R.S. 7740 9.4 8.7 108 10.6 8.6 123
LOOMIS PARK 8240 12.2 10.0 122 13.1 10.4 126
NEW FORK LAKE 8340 6.9 6.8 101 6.9 7.1 97
SNIDER BASIN 8060 11.6 8.7 133 11.5 9.9 116
SPRING CREEK DIVIDE 9000 21.1 15.5 136 17.1 16.2 106
TRIPLE PEAK 8500 19.5 14.8 132 20.1 14.3 141
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Basin wide percent of average 116 118
LOWER GREEN RIVER
HAMS FORK 7840 9.9 7.3 136 9.4 7.4 127
HEWINTA 9500 6.6 5.6 118 9.6 8.4 114
HICKERSON PARK 9100 1.8 3.8 47 4.3 4.8 90
HOLE-IN-ROCK 9150 4.4 3.5 126 5.0 4.5 111
INDIAN CREEK 9425 20.2 15.7 129 18.3 15.0 122
KELLEY R.S. 8180 13.7 9.5 144 15.3 12.4 123
STEEL CREEK PARK 10100 9.4 8.3 113 10.8 9.1 119
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Basin wide percent of average 123 118
UPPER BEAR RIVER
BUG LAKE 7950 16.1 11.3 142 14.9 11.5 130
HAYDEN FORK 9100 13.3 8.5 156 16.1 12.2 132
KELLEY R.S. 8180 13.7 9.5 144 15.3 12.4 123
LILY LAKE 9050 9.2 7.1 130 10.7 10.4 103
MONTE CRISTO 8960 20.4 15.4 132 21.0 14.9 141
SALT RIVER SUMMIT 7600 10.5 7.7 136 13.0 11.2 116
TRIAL LAKE 9960 19.7 13.7 144 20.0 14.0 143
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Basin wide percent of average 141 128
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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.