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: JANUARY 17 , 2005
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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 8.8 10.6 83 10.4 12.7 82
COTTONWOOD CREEK 7600 10.0 12.1 83 12.6 16.2 78
GRANITE CREEK 6770 9.1 10.1 90 11.7 11.7 100
GRASSY LAKE 7265 15.4 19.0 81 16.8 21.3 79
GROS VENTRE SUMMIT 8750 8.0 8.4 95 7.8 7.6 103
LEWIS LAKE DIVIDE 7850 15.0 19.0 79 15.7 21.3 74
PHILLIPS BENCH 8200 15.5 15.7 99 16.0 16.6 96
SALT RIVER SUMMIT 7600 8.4 7.3 115 11.2 10.9 103
SNAKE RIVER STATION 6920 7.7 10.2 75 9.9 13.4 74
SPRING CREEK DIVIDE 9000 -M 15.0 * 15.4 15.7 98
THUMB DIVIDE 7980 9.4 9.8 96 9.3 11.0 85
TOGWOTEE PASS 9580 11.0 14.4 76 11.2 14.5 77
TWO OCEAN PLATEAU 9240 15.5 16.4 95 12.3 16.1 76
WILLOW CREEK 8450 14.5 17.4 83 17.1 18.8 91
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Basin wide percent of average 87 85
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.5 14.2 67 8.4 12.1 69
BLACK BEAR 8170 22.7 21.9 104 19.8 22.0 90
CANYON 8090 6.1 7.7 79 7.5 9.3 81
FISHER CREEK 9100 15.8 20.6 77 15.3 21.0 73
MADISON PLATEAU 7750 -M 14.0 * -M 15.0 *
NORTHEAST ENTRANCE 7350 3.6 6.6 55 4.8 7.7 62
PARKER PEAK 9400 10.1 12.9 78 8.3 9.7 86
SYLVAN LAKE 8420 9.6 13.0 74 11.1 13.0 85
THUMB DIVIDE 7980 9.4 9.8 96 9.3 11.0 85
TWO OCEAN PLATEAU 9240 15.5 16.4 95 12.3 16.1 76
WHISKEY CREEK 6800 -M 9.4 * -M 11.9 *
WHITE MILL 8700 10.3 14.1 73 9.9 15.6 63
WOLVERINE 7650 4.8 7.4 65 5.0 8.1 62
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Basin wide percent of average 81 77
WIND RIVER
BURROUGHS CREEK 8750 6.4 8.8 73 6.7 9.7 69
COLD SPRINGS 9630 5.5 5.4 102 5.9 6.4 92
DEER PARK 9700 16.2 9.4 172 18.4 12.8 144
HOBBS PARK 10100 11.0 8.9 124 9.9 7.3 136
LITTLE WARM 9370 5.6 6.7 84 6.2 7.9 78
SOUTH PASS 9040 14.2 9.9 143 15.0 10.7 140
ST. LAWRENCE ALT 8620 5.1 4.4 116 6.2 5.2 119
TOGWOTEE PASS 9580 11.0 14.4 76 11.2 14.5 77
TOWNSEND CREEK 8700 7.5 5.1 147 10.1 6.7 151
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Basin wide percent of average 113 110
BIGHORN BASIN
BALD MTN. 9380 9.5 11.9 80 9.1 10.2 89
BEAR TRAP MEADOW 8200 2.6 3.1 84 4.8 5.0 96
BLACKWATER 9780 9.6 14.4 67 8.9 12.6 71
BONE SPRINGS DIV 9350 8.7 9.5 92 8.6 8.5 101
EVENING STAR 9200 11.4 17.1 67 12.7 15.4 82
GRAVE SPRINGS 8550 3.8 5.0 76 5.5 5.7 96
KIRWIN 9550 4.6 7.0 66 5.3 6.8 78
MARQUETTE 8760 2.3 5.5 42 3.9 5.8 67
MIDDLE POWDER 7760 4.1 6.4 64 5.2 7.6 68
OWL CREEK 8975 2.3 3.0 77 2.6 3.3 79
POWDER RIVER PASS 9480 7.3 6.3 116 8.1 7.2 112
SHELL CREEK 9580 8.4 8.8 95 7.5 8.0 94
SYLVAN LAKE 8420 9.6 13.0 74 11.1 13.0 85
SYLVAN ROAD 7120 5.5 7.7 71 7.9 11.8 67
TIMBER CREEK 7950 1.1 3.3 33 1.8 4.1 44
YOUNTS PEAK 8350 6.9 10.1 68 7.2 9.9 73
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Basin wide percent of average 74 82
SHOSHONE RIVER
BLACKWATER 9780 9.6 14.4 67 8.9 12.6 71
EVENING STAR 9200 11.4 17.1 67 12.7 15.4 82
KIRWIN 9550 4.6 7.0 66 5.3 6.8 78
MARQUETTE 8760 2.3 5.5 42 3.9 5.8 67
SYLVAN LAKE 8420 9.6 13.0 74 11.1 13.0 85
SYLVAN ROAD 7120 5.5 7.7 71 7.9 11.8 67
YOUNTS PEAK 8350 6.9 10.1 68 7.2 9.9 73
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Basin wide percent of average 67 76
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.6 3.1 84 4.8 5.0 96
BIG GOOSE 7990 -M 5.3 * -M 5.1 *
BONE SPRINGS DIV 9350 8.7 9.5 92 8.6 8.5 101
BURGESS JUNCTION 7880 4.4 6.5 68 5.6 7.0 80
CLOUD PEAK RESERVOIR 9860 8.4 7.0 120 6.8 7.3 93
DOME LAKE 8880 6.0 7.1 85 6.8 7.8 87
GRAVE SPRINGS 8550 3.8 5.0 76 5.5 5.7 96
HANSEN SAWMILL 8360 3.4 3.8 89 4.5 4.8 94
MIDDLE POWDER 7760 4.1 6.4 64 5.2 7.6 68
POWDER RIVER PASS 9480 7.3 6.3 116 8.1 7.2 112
SUCKER CREEK 8880 6.1 6.3 97 7.4 7.8 95
TIE CREEK 6870 1.1 3.6 31 4.6 6.0 77
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Basin wide percent of average 87 91
BELLE FOURCHE
BLIND PARK 6890 3.2 4.6 70 5.2 7.0 74
COLE CANYON 5910 1.6 3.6 44 4.3 -M *
NORTH RAPID CREEK 6130 2.3 4.1 56 4.1 5.8 71
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Basin wide percent of average 58 73
UPPER N. PLATTE RIVER
COLUMBINE 9160 12.6 13.2 95 13.9 14.2 98
DIVIDE PEAK 8860 14.2 11.3 126 16.6 11.9 139
ELK RIVER 8700 13.4 9.8 137 14.5 10.9 133
JOE WRIGHT 10120 12.1 11.9 102 12.6 14.1 89
NORTH FRENCH CREEK 10130 15.6 16.1 97 15.1 14.3 106
OLD BATTLE 9920 23.5 17.4 135 25.3 19.3 131
SAGE CREEK BASIN 7850 10.3 6.5 158 12.5 6.9 181
SOUTH BRUSH CREEK 8440 6.3 6.3 100 8.2 9.4 87
TOWER 10500 23.5 25.4 93 23.4 21.8 107
WEBBER SPRINGS 9250 16.8 13.8 122 19.3 15.6 124
WILLOW CREEK PASS 9540 9.7 6.5 149 9.7 7.4 131
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Basin wide percent of average 114 117
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 11.6 13.2 88 11.1 12.3 90
CASPER MTN. 7850 6.4 8.0 80 7.5 8.1 93
DEADMAN HILL 10220 10.4 9.2 113 8.3 9.3 89
DEER PARK 9700 16.2 9.4 172 18.4 12.8 144
LAPRELE CREEK 8375 4.3 6.4 67 6.4 7.2 89
RENO HILL 8500 5.1 7.6 67 6.0 8.3 72
ROACH 9700 9.6 9.2 104 12.0 10.2 118
SAND LAKE 10050 14.0 17.5 80 12.6 13.8 91
SOUTH PASS 9040 14.2 9.9 143 15.0 10.7 140
WINDY PEAK 7900 -M 4.0 * -M 6.3 *
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Basin wide percent of average 102 105
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 7.5 6.0 125 10.7 8.5 126
DIVIDE PEAK 8860 14.2 11.3 126 16.6 11.9 139
OLD BATTLE 9920 23.5 17.4 135 25.3 19.3 131
SANDSTONE RS 8150 7.6 7.6 100 13.4 10.8 124
WHISKEY PARK 8950 16.6 14.9 111 17.3 16.4 105
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Basin wide percent of average 121 125
UPPER GREEN RIVER
BIG SANDY OPENING 9080 11.4 8.3 137 11.1 7.8 142
BLIND BULL SUM 8900 12.5 16.0 78 11.1 13.3 83
EAST RIM DIVIDE 7930 5.5 7.3 75 6.6 7.0 94
ELKHART PARK G.S. 9400 7.6 7.6 100 8.9 7.8 114
GROS VENTRE SUMMIT 8750 8.0 8.4 95 7.8 7.6 103
KENDALL R.S. 7740 7.8 8.4 93 8.7 8.3 105
LOOMIS PARK 8240 9.1 9.7 94 9.9 10.1 98
NEW FORK LAKE 8340 6.7 6.6 102 6.6 6.9 96
SNIDER BASIN 8060 9.9 8.4 118 10.5 9.6 109
SPRING CREEK DIVIDE 9000 -M 15.0 * 15.4 15.7 98
TRIPLE PEAK 8500 11.9 14.4 83 13.0 13.8 94
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Basin wide percent of average 95 102
LOWER GREEN RIVER
HAMS FORK 7840 8.0 7.0 114 9.4 7.1 132
HEWINTA 9500 5.4 5.4 100 8.1 8.2 99
HICKERSON PARK 9100 5.7 3.7 154 8.0 4.7 170
HOLE-IN-ROCK 9150 4.9 3.4 144 7.3 4.4 166
INDIAN CREEK 9425 18.4 15.2 121 16.5 14.6 113
KELLEY R.S. 8180 11.5 9.2 125 13.2 12.1 109
STEEL CREEK PARK 10100 10.0 8.0 125 10.7 8.9 120
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Basin wide percent of average 123 122
UPPER BEAR RIVER
BUG LAKE 7950 14.3 10.8 132 14.6 11.1 132
HAYDEN FORK 9100 12.7 8.1 157 17.7 11.9 149
KELLEY R.S. 8180 11.5 9.2 125 13.2 12.1 109
LILY LAKE 9050 9.8 6.9 142 12.8 10.1 127
MONTE CRISTO 8960 20.9 14.7 142 19.1 14.5 132
SALT RIVER SUMMIT 7600 8.4 7.3 115 11.2 10.9 103
TRIAL LAKE 9960 20.9 13.1 160 20.3 13.6 149
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Basin wide percent of average 141 129
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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.