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 SUNDAY: JANUARY 1 , 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 10.0 8.2 122 13.9 10.4 134
COTTONWOOD CREEK 7600 12.0 9.7 124 15.1 13.5 112
GRANITE CREEK 6770 10.3 7.6 136 12.8 9.5 135
GRASSY LAKE 7265 16.8 14.7 114 21.4 17.3 124
GROS VENTRE SUMMIT 8750 6.9 6.9 100 7.7 6.4 120
LEWIS LAKE DIVIDE 7850 19.2 14.8 130 21.6 17.5 123
PHILLIPS BENCH 8200 15.7 12.6 125 17.1 13.5 127
SALT RIVER SUMMIT 7600 7.6 5.4 141 9.8 9.0 109
SNAKE RIVER STATION 6920 9.4 7.9 119 14.4 11.0 131
SPRING CREEK DIVIDE 9000 14.9 12.5 119 14.6 13.0 112
THUMB DIVIDE 7980 8.9 7.6 117 10.6 9.1 116
TOGWOTEE PASS 9580 13.6 11.7 116 14.4 12.0 120
TWO OCEAN PLATEAU 9240 19.3 13.5 143 15.5 13.5 115
WILLOW CREEK 8450 15.3 14.3 107 19.8 15.5 128
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Basin wide percent of average 122 122
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 12.6 11.5 110 10.6 10.0 106
BLACK BEAR 8170 24.4 17.2 142 22.2 17.6 126
CANYON 8090 7.3 6.1 120 9.8 7.8 126
FISHER CREEK 9100 21.4 16.3 131 20.8 17.1 122
MADISON PLATEAU 7750 12.6 11.2 112 15.9 12.4 128
NORTHEAST ENTRANCE 7350 4.9 5.0 98 7.0 6.4 109
PARKER PEAK 9400 10.5 10.6 99 10.2 8.2 124
SYLVAN LAKE 8420 9.0 10.5 86 12.6 11.0 115
THUMB DIVIDE 7980 8.9 7.6 117 10.6 9.1 116
TWO OCEAN PLATEAU 9240 19.3 13.5 143 15.5 13.5 115
WHISKEY CREEK 6800 6.8 7.5 91 11.8 9.9 119
WHITE MILL 8700 13.2 11.1 119 13.0 12.8 102
WOLVERINE 7650 5.1 5.8 88 4.8 7.0 69
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Basin wide percent of average 117 115
WIND RIVER
BURROUGHS CREEK 8750 -M 6.7 * 9.4 8.0 118
COLD SPRINGS 9630 2.3 4.6 50 4.7 5.7 82
DEER PARK 9700 -M 6.7 * -M 10.9 *
HOBBS PARK 10100 4.7 7.6 62 5.8 6.4 91
LITTLE WARM 9370 4.6 5.3 87 6.6 6.7 99
SOUTH PASS 9040 8.2 8.2 100 9.4 9.2 102
ST. LAWRENCE ALT 8620 1.1 3.8 29 3.2 4.6 70
TOGWOTEE PASS 9580 13.6 11.7 116 14.4 12.0 120
TOWNSEND CREEK 8700 2.8 4.4 64 5.3 6.0 88
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Basin wide percent of average 82 100
BIGHORN BASIN
BALD MTN. 9380 8.3 9.7 86 6.7 8.5 79
BEAR TRAP MEADOW 8200 2.9 2.6 112 4.7 4.5 104
BLACKWATER 9780 11.5 12.0 96 10.0 10.8 93
BONE SPRINGS DIV 9350 7.2 7.8 92 7.4 7.3 101
EVENING STAR 9200 12.8 13.7 93 14.9 13.0 115
GRAVE SPRINGS 8550 4.5 4.0 112 6.8 4.9 139
KIRWIN 9550 6.1 5.9 103 6.6 5.9 112
MARQUETTE 8760 1.1 5.0 22 4.1 5.3 77
MIDDLE POWDER 7760 6.6 5.5 120 6.3 6.8 93
OWL CREEK 8975 1.3 2.7 48 3.7 2.9 128
POWDER RIVER PASS 9480 4.9 5.3 92 6.7 6.0 112
SHELL CREEK 9580 6.8 7.3 93 6.3 6.7 94
SYLVAN LAKE 8420 9.0 10.5 86 12.6 11.0 115
SYLVAN ROAD 7120 5.2 6.2 84 9.5 10.1 94
TIMBER CREEK 7950 1.0 3.0 33 3.1 3.7 84
YOUNTS PEAK 8350 -M 7.9 * 10.6 8.2 129
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Basin wide percent of average 88 104
SHOSHONE RIVER
BLACKWATER 9780 11.5 12.0 96 10.0 10.8 93
EVENING STAR 9200 12.8 13.7 93 14.9 13.0 115
KIRWIN 9550 6.1 5.9 103 6.6 5.9 112
MARQUETTE 8760 1.1 5.0 22 4.1 5.3 77
SYLVAN LAKE 8420 9.0 10.5 86 12.6 11.0 115
SYLVAN ROAD 7120 5.2 6.2 84 9.5 10.1 94
YOUNTS PEAK 8350 -M 7.9 * 10.6 8.2 129
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Basin wide percent of average 86 106
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.9 2.6 112 4.7 4.5 104
BIG GOOSE 7990 3.2 4.4 73 5.3 4.5 118
BONE SPRINGS DIV 9350 7.2 7.8 92 7.4 7.3 101
BURGESS JUNCTION 7880 5.5 5.5 100 7.0 6.1 115
CLOUD PEAK RESERVOIR 9860 6.4 5.7 112 6.8 6.4 106
DOME LAKE 8880 5.7 6.1 93 6.4 6.9 93
GRAVE SPRINGS 8550 4.5 4.0 112 6.8 4.9 139
HANSEN SAWMILL 8360 1.9 3.3 58 3.8 4.3 88
MIDDLE POWDER 7760 6.6 5.5 120 6.3 6.8 93
POWDER RIVER PASS 9480 4.9 5.3 92 6.7 6.0 112
SUCKER CREEK 8880 5.7 5.2 110 8.2 6.7 122
TIE CREEK 6870 3.0 2.5 120 6.6 5.1 129
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Basin wide percent of average 99 109
BELLE FOURCHE
BLIND PARK 6890 4.3 3.5 123 6.1 6.2 98
COLE CANYON 5910 3.0 3.0 100 4.9 -M *
NORTH RAPID CREEK 6130 3.8 3.3 115 4.8 5.3 91
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Basin wide percent of average 113 95
UPPER N. PLATTE RIVER
COLUMBINE 9160 16.0 10.0 160 19.2 11.5 167
DIVIDE PEAK 8860 9.1 9.2 99 12.4 10.0 124
ELK RIVER 8700 9.3 7.2 129 11.8 8.9 133
JOE WRIGHT 10120 13.0 9.7 134 16.1 11.9 135
NORTH FRENCH CREEK 10130 18.2 13.4 136 18.9 12.0 158
OLD BATTLE 9920 19.6 14.6 134 23.5 16.0 147
SAGE CREEK BASIN 7850 5.8 5.3 109 8.5 5.8 147
SOUTH BRUSH CREEK 8440 7.2 5.1 141 10.8 7.8 138
TOWER 10500 27.2 20.6 132 28.0 17.9 156
WEBBER SPRINGS 9250 -M 11.5 * -M 13.0 *
WILLOW CREEK PASS 9540 6.5 5.6 116 8.0 6.4 125
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Basin wide percent of average 131 145
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 12.7 10.8 118 10.3 10.1 102
CASPER MTN. 7850 6.2 6.9 90 8.6 7.2 119
DEADMAN HILL 10220 8.8 7.6 116 10.2 7.9 129
DEER PARK 9700 -M 6.7 * -M 10.9 *
LAPRELE CREEK 8375 3.6 5.3 68 4.6 6.2 74
RENO HILL 8500 6.7 6.6 102 8.3 7.2 115
ROACH 9700 8.4 7.3 115 11.4 8.5 134
SAND LAKE 10050 17.6 14.9 118 17.6 11.6 152
SOUTH PASS 9040 8.2 8.2 100 9.4 9.2 102
WINDY PEAK 7900 2.7 3.5 77 4.4 5.5 80
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Basin wide percent of average 105 116
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 6.8 4.1 166 9.6 7.1 135
DIVIDE PEAK 8860 9.1 9.2 99 12.4 10.0 124
OLD BATTLE 9920 19.6 14.6 134 23.5 16.0 147
SANDSTONE RS 8150 7.6 5.3 143 12.8 8.9 144
WHISKEY PARK 8950 17.1 11.1 154 -M 13.2 *
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Basin wide percent of average 136 139
UPPER GREEN RIVER
BIG SANDY OPENING 9080 7.4 6.9 107 8.1 6.6 123
BLIND BULL SUM 8900 13.3 13.2 101 11.2 11.1 101
EAST RIM DIVIDE 7930 5.4 5.9 92 6.2 5.8 107
ELKHART PARK G.S. 9400 7.1 6.3 113 7.9 6.7 118
GROS VENTRE SUMMIT 8750 6.9 6.9 100 7.7 6.4 120
KENDALL R.S. 7740 7.3 6.7 109 8.5 6.9 123
LOOMIS PARK 8240 9.6 8.0 120 10.4 8.3 125
NEW FORK LAKE 8340 5.3 5.4 98 5.7 5.9 97
SNIDER BASIN 8060 8.8 6.9 128 9.0 7.9 114
SPRING CREEK DIVIDE 9000 14.9 12.5 119 14.6 13.0 112
TRIPLE PEAK 8500 14.1 11.9 118 15.2 11.2 136
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Basin wide percent of average 110 116
LOWER GREEN RIVER
HAMS FORK 7840 6.8 5.5 124 6.9 5.8 119
HEWINTA 9500 5.3 4.1 129 7.6 7.0 109
HICKERSON PARK 9100 1.5 2.9 52 3.6 4.2 86
HOLE-IN-ROCK 9150 3.9 2.7 144 4.2 3.9 108
INDIAN CREEK 9425 14.7 12.5 118 13.3 12.2 109
KELLEY R.S. 8180 -M 7.6 * -M 10.1 *
STEEL CREEK PARK 10100 7.4 6.7 110 8.8 7.6 116
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Basin wide percent of average 115 109
UPPER BEAR RIVER
BUG LAKE 7950 10.4 8.3 125 10.7 9.2 116
HAYDEN FORK 9100 9.7 6.3 154 12.3 10.0 123
KELLEY R.S. 8180 -M 7.6 * -M 10.1 *
LILY LAKE 9050 6.8 5.5 124 8.2 8.6 95
MONTE CRISTO 8960 14.0 11.0 127 14.3 12.1 118
SALT RIVER SUMMIT 7600 7.6 5.4 141 9.8 9.0 109
TRIAL LAKE 9960 15.6 10.5 149 16.0 11.2 143
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Basin wide percent of average 136 119
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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.