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: DECEMBER 7 , 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 5.7 4.9 116 9.4 6.9 136
COTTONWOOD CREEK 7600 6.4 5.6 114 9.7 9.1 107
GRANITE CREEK 6770 6.0 4.2 143 8.1 6.2 131
GRASSY LAKE 7265 10.2 9.0 113 14.7 11.1 132
GROS VENTRE SUMMIT 8750 4.4 4.5 98 6.3 4.7 134
LEWIS LAKE DIVIDE 7850 10.0 9.1 110 14.3 11.4 125
PHILLIPS BENCH 8200 8.7 7.6 114 10.8 8.6 126
SALT RIVER SUMMIT 7600 4.1 3.2 128 5.8 5.8 100
SNAKE RIVER STATION 6920 5.1 4.8 106 9.8 7.3 134
SPRING CREEK DIVIDE 9000 8.3 8.0 104 8.9 8.4 106
THUMB DIVIDE 7980 5.4 4.7 115 7.6 6.1 125
TOGWOTEE PASS 9580 9.6 7.9 122 10.3 8.2 126
TWO OCEAN PLATEAU 9240 14.9 9.3 160 12.3 9.2 134
WILLOW CREEK 8450 8.6 9.0 96 12.8 10.6 121
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Basin wide percent of average 117 124
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 -M 7.9 * -M 6.7 *
BLACK BEAR 8170 15.1 11.2 135 15.9 11.9 134
CANYON 8090 5.5 3.8 145 7.1 5.4 131
FISHER CREEK 9100 -M 10.6 * -M 11.2 *
MADISON PLATEAU 7750 -M 7.2 * -M 8.2 *
NORTHEAST ENTRANCE 7350 3.0 3.0 100 5.3 4.5 118
PARKER PEAK 9400 -M 7.5 * -M 6.0 *
SYLVAN LAKE 8420 5.8 7.2 81 9.4 7.9 119
THUMB DIVIDE 7980 5.4 4.7 115 7.6 6.1 125
TWO OCEAN PLATEAU 9240 14.9 9.3 160 12.3 9.2 134
WHISKEY CREEK 6800 4.3 4.6 93 8.9 6.7 133
WHITE MILL 8700 8.8 7.6 116 8.5 8.7 98
WOLVERINE 7650 -M 3.5 * -M 5.0 *
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Basin wide percent of average 122 124
WIND RIVER
BURROUGHS CREEK 8750 3.1 4.4 70 7.0 5.5 127
COLD SPRINGS 9630 -M 3.4 * -M 4.5 *
DEER PARK 9700 -M 5.0 * -M 7.8 *
HOBBS PARK 10100 3.1 5.9 53 4.4 4.9 90
LITTLE WARM 9370 -M 3.8 * -M 5.0 *
SOUTH PASS 9040 4.7 5.7 82 6.3 6.6 95
ST. LAWRENCE ALT 8620 -M 3.0 * -M 3.7 *
TOGWOTEE PASS 9580 9.6 7.9 122 10.3 8.2 126
TOWNSEND CREEK 8700 1.4 3.3 42 4.8 4.8 100
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Basin wide percent of average 81 109
BIGHORN BASIN
BALD MTN. 9380 6.1 6.7 91 4.5 5.9 76
BEAR TRAP MEADOW 8200 -M 1.8 * -M 3.6 *
BLACKWATER 9780 8.9 8.7 102 8.1 7.9 103
BONE SPRINGS DIV 9350 6.2 5.8 107 5.6 5.4 104
EVENING STAR 9200 8.6 9.6 90 11.2 9.1 123
GRAVE SPRINGS 8550 2.5 2.9 86 5.1 3.9 131
KIRWIN 9550 5.2 4.6 113 5.4 4.4 123
MARQUETTE 8760 .9 4.0 22 3.5 4.3 81
MIDDLE POWDER 7760 -M 4.0 * -M 5.3 *
OWL CREEK 8975 -M 2.1 * -M 2.3 *
POWDER RIVER PASS 9480 3.5 3.7 95 4.9 4.5 109
SHELL CREEK 9580 5.1 5.5 93 5.4 4.9 110
SYLVAN LAKE 8420 5.8 7.2 81 9.4 7.9 119
SYLVAN ROAD 7120 3.4 4.1 83 7.5 7.3 103
TIMBER CREEK 7950 .5 2.4 21 3.4 3.1 110
YOUNTS PEAK 8350 -M 5.3 * 8.4 5.8 145
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Basin wide percent of average 87 111
SHOSHONE RIVER
BLACKWATER 9780 8.9 8.7 102 8.1 7.9 103
EVENING STAR 9200 8.6 9.6 90 11.2 9.1 123
KIRWIN 9550 5.2 4.6 113 5.4 4.4 123
MARQUETTE 8760 .9 4.0 22 3.5 4.3 81
SYLVAN LAKE 8420 5.8 7.2 81 9.4 7.9 119
SYLVAN ROAD 7120 3.4 4.1 83 7.5 7.3 103
YOUNTS PEAK 8350 -M 5.3 * 8.4 5.8 145
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Basin wide percent of average 86 115
POWDER-TONGUE
BEAR TRAP MEADOW 8200 -M 1.8 * -M 3.6 *
BIG GOOSE 7990 2.0 2.7 74 4.1 3.3 124
BONE SPRINGS DIV 9350 6.2 5.8 107 5.6 5.4 104
BURGESS JUNCTION 7880 4.0 3.9 103 5.3 4.6 115
CLOUD PEAK RESERVOIR 9860 4.7 4.1 115 4.5 5.2 87
DOME LAKE 8880 4.2 4.5 93 5.6 5.3 106
GRAVE SPRINGS 8550 2.5 2.9 86 5.1 3.9 131
HANSEN SAWMILL 8360 -M 2.3 * -M 3.4 *
MIDDLE POWDER 7760 -M 4.0 * -M 5.3 *
POWDER RIVER PASS 9480 3.5 3.7 95 4.9 4.5 109
SUCKER CREEK 8880 3.6 3.6 100 5.9 4.9 120
TIE CREEK 6870 -M 1.3 * -M 4.0 *
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Basin wide percent of average 98 111
BELLE FOURCHE
BLIND PARK 6890 1.7 2.2 77 3.7 4.8 77
COLE CANYON 5910 1.3 2.1 62 4.2 -M *
NORTH RAPID CREEK 6130 1.6 2.0 80 3.0 4.1 73
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Basin wide percent of average 73 75
UPPER N. PLATTE RIVER
COLUMBINE 9160 10.0 5.9 169 13.3 7.4 180
DIVIDE PEAK 8860 5.7 5.9 97 9.1 6.9 132
ELK RIVER 8700 -M 3.8 * -M 5.9 *
JOE WRIGHT 10120 9.0 6.9 130 11.7 8.5 138
NORTH FRENCH CREEK 10130 -M 8.9 * -M 8.4 *
OLD BATTLE 9920 12.6 10.2 124 15.4 10.6 145
SAGE CREEK BASIN 7850 3.2 3.4 94 6.1 4.0 152
SOUTH BRUSH CREEK 8440 -M 3.3 * -M 5.7 *
TOWER 10500 17.4 14.2 123 20.0 12.0 167
WEBBER SPRINGS 9250 -M 7.6 * -M 8.8 *
WILLOW CREEK PASS 9540 4.5 4.0 112 6.4 4.8 133
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Basin wide percent of average 124 151
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 -M 6.9 * -M 7.0 *
CASPER MTN. 7850 3.7 5.1 73 6.5 5.6 116
DEADMAN HILL 10220 -M 5.5 * -M 5.8 *
DEER PARK 9700 -M 5.0 * -M 7.8 *
LAPRELE CREEK 8375 1.8 3.6 50 3.3 4.7 70
RENO HILL 8500 4.8 4.8 100 6.0 5.5 109
ROACH 9700 5.9 4.9 120 8.6 5.8 148
SAND LAKE 10050 12.3 10.4 118 12.5 8.1 154
SOUTH PASS 9040 4.7 5.7 82 6.3 6.6 95
WINDY PEAK 7900 1.5 2.6 58 3.7 4.0 92
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Basin wide percent of average 94 116
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.2 2.2 191 6.9 4.9 141
DIVIDE PEAK 8860 5.7 5.9 97 9.1 6.9 132
OLD BATTLE 9920 12.6 10.2 124 15.4 10.6 145
SANDSTONE RS 8150 4.4 2.9 152 8.9 6.2 144
WHISKEY PARK 8950 -M 7.0 * -M 8.8 *
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Basin wide percent of average 127 141
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.2 4.6 70 4.0 4.7 85
BLIND BULL SUM 8900 7.3 8.3 88 7.0 7.3 96
EAST RIM DIVIDE 7930 3.2 3.8 84 5.7 3.9 146
ELKHART PARK G.S. 9400 4.2 4.1 102 5.1 4.8 106
GROS VENTRE SUMMIT 8750 4.4 4.5 98 6.3 4.7 134
KENDALL R.S. 7740 3.5 3.9 90 6.3 4.6 137
LOOMIS PARK 8240 5.7 5.1 112 6.5 5.6 116
NEW FORK LAKE 8340 3.1 3.3 94 3.5 4.2 83
SNIDER BASIN 8060 5.1 4.3 119 5.4 5.2 104
SPRING CREEK DIVIDE 9000 8.3 8.0 104 8.9 8.4 106
TRIPLE PEAK 8500 8.5 7.4 115 9.9 7.4 134
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Basin wide percent of average 99 113
LOWER GREEN RIVER
HAMS FORK 7840 3.2 3.1 103 4.2 3.9 108
HEWINTA 9500 4.0 2.5 160 6.4 5.3 121
HICKERSON PARK 9100 .7 1.8 39 3.3 3.4 97
HOLE-IN-ROCK 9150 3.1 1.7 182 3.8 3.2 119
INDIAN CREEK 9425 8.5 7.9 108 8.0 8.0 100
KELLEY R.S. 8180 4.6 4.9 94 6.3 6.6 95
STEEL CREEK PARK 10100 5.1 4.5 113 6.7 5.7 118
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Basin wide percent of average 111 107
UPPER BEAR RIVER
BUG LAKE 7950 5.7 4.8 119 6.8 6.4 106
HAYDEN FORK 9100 6.5 3.7 176 8.6 6.9 125
KELLEY R.S. 8180 4.6 4.9 94 6.3 6.6 95
LILY LAKE 9050 4.8 3.4 141 6.4 6.3 102
MONTE CRISTO 8960 8.0 6.2 129 9.3 8.2 113
SALT RIVER SUMMIT 7600 4.1 3.2 128 5.8 5.8 100
TRIAL LAKE 9960 8.8 6.5 135 9.7 7.6 128
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Basin wide percent of average 130 111
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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.