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: JANUARY 14 , 2009
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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 9.9 10.1 98 12.6 12.4 102
COTTONWOOD CREEK 7670 15.6 11.7 133 19.0 16.0 119
GRAND TARGHEE 9260 22.3 -M * 20.0 -M *
GRANITE CREEK 6770 -M 9.6 * -M 11.4 *
GRASSY LAKE 7265 17.9 18.2 98 21.4 20.9 102
GROS VENTRE SUMMIT 8750 8.5 8.1 105 9.4 7.4 127
GUNSIGHT PASS 9820 8.4 -M * 9.4 -M *
LEWIS LAKE DIVIDE 7850 15.9 18.2 87 20.3 20.9 97
PHILLIPS BENCH 8200 16.1 15.1 107 18.3 16.2 113
SALT RIVER SUMMIT 7760 7.3 6.9 106 9.0 10.7 84
SNAKE RIVER STATION 6920 9.7 9.8 99 13.8 13.0 106
SPRING CREEK DIVIDE 9000 15.7 14.6 108 16.5 15.6 106
THUMB DIVIDE 7980 10.4 9.3 112 12.2 10.8 113
TOGWOTEE PASS 9580 18.0 13.9 129 19.5 14.2 137
TWO OCEAN PLATEAU 9240 22.9 15.8 145 17.4 15.7 111
WILLOW CREEK 8380 18.7 16.9 111 23.1 18.4 126
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Basin wide percent of average 111 111
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 14.5 13.7 106 13.3 11.7 114
BLACK BEAR 8170 19.0 21.1 90 20.7 21.4 97
CANYON 7870 7.6 7.5 101 8.5 9.1 93
FISHER CREEK 9100 22.7 19.9 114 21.6 20.5 105
MADISON PLATEAU 7750 11.2 13.6 82 13.2 14.5 91
NORTHEAST ENTRANCE 7350 6.4 6.3 102 8.8 7.5 117
PARKER PEAK 9400 15.9 12.5 127 12.6 9.4 134
SYLVAN LAKE 8420 11.5 12.6 91 13.8 12.6 110
THUMB DIVIDE 7980 10.4 9.3 112 12.2 10.8 113
TWO OCEAN PLATEAU 9240 22.9 15.8 145 17.4 15.7 111
WHISKEY CREEK 6800 8.0 9.1 88 11.0 11.7 94
WHITE MILL 8700 14.8 13.5 110 14.9 15.2 98
WOLVERINE 7650 7.3 7.1 103 7.5 8.0 94
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Basin wide percent of average 106 104
WIND RIVER
BURROUGHS CREEK 8750 11.2 8.5 132 12.0 9.5 126
COLD SPRINGS 9630 4.6 5.2 88 6.3 6.4 98
DEER PARK 9700 5.9 9.1 65 9.6 12.5 77
HOBBS PARK 10100 6.8 8.7 78 7.1 7.2 99
LITTLE WARM 9370 6.6 6.5 102 8.6 7.9 109
SOUTH PASS 9040 6.6 9.6 69 8.8 10.4 85
ST. LAWRENCE ALT 8620 2.0 4.3 47 4.8 5.0 96
TOGWOTEE PASS 9580 18.0 13.9 129 19.5 14.2 137
TOWNSEND CREEK 8700 4.1 5.0 82 6.1 6.6 92
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Basin wide percent of average 93 104
BIGHORN BASIN
BALD MTN. 9380 12.9 11.6 111 10.9 10.0 109
BEAR TRAP MEADOW 8200 5.4 3.0 180 6.1 4.9 124
BLACKWATER 9780 15.5 14.0 111 14.1 12.2 116
BONE SPRINGS DIV 9350 13.0 9.2 141 10.2 8.3 123
EVENING STAR 9200 19.0 16.6 114 20.0 15.1 132
GRAVE SPRINGS 8550 4.5 4.9 92 5.7 5.6 102
KIRWIN 9550 8.5 6.8 125 9.6 6.7 143
MARQUETTE 8760 2.7 5.3 51 5.5 5.7 96
MIDDLE POWDER 7760 5.9 6.2 95 5.9 7.4 80
OWL CREEK 8975 3.6 3.0 120 3.6 3.2 112
POWDER RIVER PASS 9480 8.7 6.2 140 9.9 7.0 141
SHELL CREEK 9580 11.7 8.5 138 11.3 7.8 145
SYLVAN LAKE 8420 11.5 12.6 91 13.8 12.6 110
SYLVAN ROAD 7120 9.4 7.5 125 12.3 11.6 106
TIMBER CREEK 7950 2.8 3.3 85 5.8 4.0 145
YOUNTS PEAK 8350 12.9 9.7 133 11.6 9.7 120
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Basin wide percent of average 115 119
SHOSHONE RIVER
BLACKWATER 9780 15.5 14.0 111 14.1 12.2 116
EVENING STAR 9200 19.0 16.6 114 20.0 15.1 132
KIRWIN 9550 8.5 6.8 125 9.6 6.7 143
MARQUETTE 8760 2.7 5.3 51 5.5 5.7 96
SYLVAN LAKE 8420 11.5 12.6 91 13.8 12.6 110
SYLVAN ROAD 7120 9.4 7.5 125 12.3 11.6 106
YOUNTS PEAK 8350 12.9 9.7 133 11.6 9.7 120
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Basin wide percent of average 110 118
POWDER-TONGUE
BEAR TRAP MEADOW 8200 5.4 3.0 180 6.1 4.9 124
BIG GOOSE 7990 5.4 5.1 106 7.5 4.8 156
BONE SPRINGS DIV 9350 13.0 9.2 141 10.2 8.3 123
BURGESS JUNCTION 7880 8.0 6.3 127 8.7 6.9 126
CLOUD PEAK RESERVOIR 9860 11.0 6.8 162 10.9 7.2 151
DOME LAKE 8880 8.0 6.9 116 9.9 7.7 129
GRAVE SPRINGS 8550 4.5 4.9 92 5.7 5.6 102
HANSEN SAWMILL 8360 4.2 3.7 114 6.8 4.7 145
MIDDLE POWDER 7760 5.9 6.2 95 5.9 7.4 80
POWDER RIVER PASS 9480 8.7 6.2 140 9.9 7.0 141
SUCKER CREEK 8880 9.5 6.1 156 11.3 7.6 149
TIE CREEK 6870 3.2 3.5 91 9.4 5.8 162
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Basin wide percent of average 128 131
BELLE FOURCHE
BLIND PARK 6890 6.2 4.4 141 10.6 6.9 154
COLE CANYON 5910 4.1 3.8 108 8.4 4.2 200
NORTH RAPID CREEK 6130 6.3 4.0 158 9.2 5.7 161
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Basin wide percent of average 136 168
UPPER N. PLATTE RIVER
COLUMBINE 9160 13.3 12.6 106 13.0 13.8 94
DIVIDE PEAK 8880 10.1 10.9 93 12.1 11.7 103
ELK RIVER 8700 12.2 9.3 131 12.3 10.6 116
JOE WRIGHT 10120 13.0 11.4 114 16.2 13.8 117
NORTH FRENCH CREEK 10130 16.0 15.6 103 15.6 14.0 111
OLD BATTLE 10000 15.7 16.8 93 19.6 18.9 104
SAGE CREEK BASIN 7850 5.0 6.3 79 6.8 6.8 100
SOUTH BRUSH CREEK 8440 7.3 6.1 120 9.0 9.1 99
TOWER 10500 -M 24.5 * -M 21.2 *
WEBBER SPRINGS 9250 12.1 13.3 91 15.0 15.4 97
WILLOW CREEK PASS 9540 7.0 6.4 109 7.2 7.2 100
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Basin wide percent of average 103 105
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 11.2 12.8 87 10.8 12.0 90
CASPER MTN. 7900 4.8 7.8 62 7.4 7.9 94
DEADMAN HILL 10220 8.8 8.9 99 9.4 9.0 104
DEER PARK 9700 5.9 9.1 65 9.6 12.5 77
LAPRELE CREEK 8375 3.6 6.2 58 4.6 7.1 65
RENO HILL 8400 5.8 7.4 78 7.0 8.1 86
ROACH 9700 9.0 8.8 102 10.4 9.9 105
SAND LAKE 10050 14.0 17.1 82 12.9 13.6 95
SOUTH PASS 9040 6.6 9.6 69 8.8 10.4 85
WINDY PEAK 7900 3.3 3.9 85 3.9 6.2 63
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Basin wide percent of average 80 88
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.2 5.7 109 8.9 8.4 106
DIVIDE PEAK 8880 10.1 10.9 93 12.1 11.7 103
OLD BATTLE 10000 15.7 16.8 93 19.6 18.9 104
SANDSTONE RS 8150 7.6 7.1 107 10.1 10.5 96
WHISKEY PARK 8950 15.0 14.2 106 17.1 16.1 106
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Basin wide percent of average 100 103
UPPER GREEN RIVER
BIG SANDY OPENING 9080 7.0 8.0 88 7.1 7.6 93
BLIND BULL SUM 8650 15.4 15.5 99 12.8 13.1 98
EAST RIM DIVIDE 7930 5.3 7.0 76 8.2 6.8 121
ELKHART PARK G.S. 9400 8.0 7.4 108 9.3 7.7 121
GROS VENTRE SUMMIT 8750 8.5 8.1 105 9.4 7.4 127
GUNSIGHT PASS 9820 8.4 -M * 9.4 -M *
KENDALL R.S. 7740 6.9 8.1 85 9.3 8.2 113
LOOMIS PARK 8240 10.3 9.4 110 12.7 9.9 128
NEW FORK LAKE 8340 7.5 6.4 117 7.4 6.8 109
SNIDER BASIN 8060 8.8 8.1 109 9.6 9.4 102
SPRING CREEK DIVIDE 9000 15.7 14.6 108 16.5 15.6 106
TRIPLE PEAK 8500 15.5 13.9 112 17.3 13.5 128
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Basin wide percent of average 102 113
LOWER GREEN RIVER
HAMS FORK 7840 5.2 6.7 78 6.2 7.0 89
HEWINTA 9519 3.9 5.2 75 6.7 7.9 85
HICKERSON PARK 9145 1.6 3.5 46 4.2 4.6 91
HOLE-IN-ROCK 9150 2.0 3.2 62 4.1 4.2 98
INDIAN CREEK 9425 12.3 14.7 84 12.0 14.3 84
KELLEY R.S. 8180 7.4 8.9 83 9.2 11.9 77
STEEL CREEK PARK 10200 5.1 7.8 65 8.4 8.6 98
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Basin wide percent of average 75 87
UPPER BEAR RIVER
BUG LAKE 7950 6.2 10.4 60 9.2 10.8 85
HAYDEN FORK 9212 8.4 7.8 108 11.1 11.6 96
KELLEY R.S. 8180 7.4 8.9 83 9.2 11.9 77
LILY LAKE 9156 6.6 6.6 100 8.6 9.8 88
MONTE CRISTO 8960 12.7 14.0 91 13.7 14.1 97
SALT RIVER SUMMIT 7760 7.3 6.9 106 9.0 10.7 84
TRIAL LAKE 9992 11.2 12.6 89 11.2 13.3 84
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Basin wide percent of average 89 88
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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.