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 TUESDAY: DECEMBER 13 , 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 5.8 5.6 104 9.5 7.8 122
COTTONWOOD CREEK 7600 6.4 6.6 97 9.8 10.1 97
GRANITE CREEK 6770 6.1 5.0 122 8.4 7.0 120
GRASSY LAKE 7265 10.2 10.4 98 14.7 12.6 117
GROS VENTRE SUMMIT 8750 4.6 5.1 90 5.8 5.1 114
LEWIS LAKE DIVIDE 7850 10.2 10.4 98 14.0 12.8 109
PHILLIPS BENCH 8200 8.9 8.9 100 11.0 9.8 112
SALT RIVER SUMMIT 7600 4.2 3.7 114 6.2 6.5 95
SNAKE RIVER STATION 6920 5.4 5.5 98 10.0 8.2 122
SPRING CREEK DIVIDE 9000 8.6 9.2 93 9.2 9.5 97
THUMB DIVIDE 7980 5.7 5.4 106 8.0 6.8 118
TOGWOTEE PASS 9580 10.0 8.8 114 10.6 9.1 116
TWO OCEAN PLATEAU 9240 14.9 10.4 143 12.4 10.3 120
WILLOW CREEK 8450 8.4 10.3 82 13.0 11.8 110
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Basin wide percent of average 104 112
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 9.8 8.8 111 8.2 7.5 109
BLACK BEAR 8170 15.2 12.8 119 16.6 13.2 126
CANYON 8090 5.3 4.3 123 7.5 6.0 125
FISHER CREEK 9100 15.3 12.2 125 15.2 12.6 121
MADISON PLATEAU 7750 8.3 8.2 101 11.7 9.2 127
NORTHEAST ENTRANCE 7350 3.2 3.5 91 5.4 4.9 110
PARKER PEAK 9400 7.5 8.2 91 7.7 6.5 118
SYLVAN LAKE 8420 6.2 8.0 78 9.6 8.6 112
THUMB DIVIDE 7980 5.7 5.4 106 8.0 6.8 118
TWO OCEAN PLATEAU 9240 14.9 10.4 143 12.4 10.3 120
WHISKEY CREEK 6800 4.1 5.3 77 9.1 7.4 123
WHITE MILL 8700 8.8 8.6 102 9.1 9.7 94
WOLVERINE 7650 3.9 4.0 98 4.3 5.5 78
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Basin wide percent of average 109 115
WIND RIVER
BURROUGHS CREEK 8750 4.0 5.0 80 7.6 6.1 125
COLD SPRINGS 9630 1.8 3.8 47 4.2 4.8 88
DEER PARK 9700 5.4 5.4 100 7.1 8.6 83
HOBBS PARK 10100 3.4 6.4 53 4.8 5.3 91
LITTLE WARM 9370 3.7 4.2 88 5.6 5.4 104
SOUTH PASS 9040 5.1 6.5 78 6.4 7.2 89
ST. LAWRENCE ALT 8620 .7 3.2 22 2.8 3.9 72
TOGWOTEE PASS 9580 10.0 8.8 114 10.6 9.1 116
TOWNSEND CREEK 8700 2.2 3.6 61 4.9 5.1 96
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Basin wide percent of average 77 97
BIGHORN BASIN
BALD MTN. 9380 6.1 7.4 82 5.1 6.5 78
BEAR TRAP MEADOW 8200 2.1 2.0 105 4.1 3.8 108
BLACKWATER 9780 9.1 9.6 95 8.2 8.6 95
BONE SPRINGS DIV 9350 6.2 6.2 100 6.3 5.8 109
EVENING STAR 9200 8.7 10.7 81 11.9 10.1 118
GRAVE SPRINGS 8550 2.8 3.0 93 5.0 4.1 122
KIRWIN 9550 5.5 5.0 110 5.9 4.8 123
MARQUETTE 8760 1.2 4.2 29 4.0 4.6 87
MIDDLE POWDER 7760 4.6 4.4 105 5.6 5.6 100
OWL CREEK 8975 1.0 2.2 45 3.5 2.5 140
POWDER RIVER PASS 9480 3.4 4.1 83 5.4 4.8 113
SHELL CREEK 9580 5.4 5.9 92 5.3 5.4 98
SYLVAN LAKE 8420 6.2 8.0 78 9.6 8.6 112
SYLVAN ROAD 7120 3.6 4.7 77 7.8 8.0 98
TIMBER CREEK 7950 1.0 2.6 38 3.2 3.3 97
YOUNTS PEAK 8350 -M 6.0 * 9.0 6.4 141
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Basin wide percent of average 84 108
SHOSHONE RIVER
BLACKWATER 9780 9.1 9.6 95 8.2 8.6 95
EVENING STAR 9200 8.7 10.7 81 11.9 10.1 118
KIRWIN 9550 5.5 5.0 110 5.9 4.8 123
MARQUETTE 8760 1.2 4.2 29 4.0 4.6 87
SYLVAN LAKE 8420 6.2 8.0 78 9.6 8.6 112
SYLVAN ROAD 7120 3.6 4.7 77 7.8 8.0 98
YOUNTS PEAK 8350 -M 6.0 * 9.0 6.4 141
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Basin wide percent of average 81 110
POWDER-TONGUE
BEAR TRAP MEADOW 8200 2.1 2.0 105 4.1 3.8 108
BIG GOOSE 7990 2.5 3.2 78 4.6 3.6 128
BONE SPRINGS DIV 9350 6.2 6.2 100 6.3 5.8 109
BURGESS JUNCTION 7880 4.4 4.3 102 6.1 4.9 124
CLOUD PEAK RESERVOIR 9860 4.7 4.5 104 5.7 5.5 104
DOME LAKE 8880 4.7 4.9 96 5.6 5.7 98
GRAVE SPRINGS 8550 2.8 3.0 93 5.0 4.1 122
HANSEN SAWMILL 8360 1.6 2.5 64 3.4 3.6 94
MIDDLE POWDER 7760 4.6 4.4 105 5.6 5.6 100
POWDER RIVER PASS 9480 3.4 4.1 83 5.4 4.8 113
SUCKER CREEK 8880 3.9 4.0 98 6.4 5.4 119
TIE CREEK 6870 2.4 1.5 160 5.7 4.2 136
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Basin wide percent of average 97 112
BELLE FOURCHE
BLIND PARK 6890 2.0 2.4 83 3.6 5.2 69
COLE CANYON 5910 1.8 2.3 78 4.2 -M *
NORTH RAPID CREEK 6130 2.3 2.3 100 3.4 4.4 77
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Basin wide percent of average 87 73
UPPER N. PLATTE RIVER
COLUMBINE 9160 10.2 6.8 150 14.0 8.4 167
DIVIDE PEAK 8860 5.9 6.6 89 9.5 7.7 123
ELK RIVER 8700 4.8 4.6 104 8.5 6.6 129
JOE WRIGHT 10120 9.7 7.5 129 12.0 9.3 129
NORTH FRENCH CREEK 10130 11.0 10.0 110 12.2 9.2 133
OLD BATTLE 9920 12.6 11.4 111 16.1 11.9 135
SAGE CREEK BASIN 7850 3.3 3.9 85 6.0 4.5 133
SOUTH BRUSH CREEK 8440 4.4 3.8 116 8.0 6.2 129
TOWER 10500 17.5 15.8 111 20.5 13.4 153
WEBBER SPRINGS 9250 -M 8.6 * -M 9.8 *
WILLOW CREEK PASS 9540 5.7 4.4 130 6.7 5.2 129
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Basin wide percent of average 114 138
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 8.8 7.8 113 6.7 7.7 87
CASPER MTN. 7850 4.3 5.5 78 7.1 6.0 118
DEADMAN HILL 10220 6.8 6.0 113 8.3 6.3 132
DEER PARK 9700 5.4 5.4 100 7.1 8.6 83
LAPRELE CREEK 8375 2.1 4.1 51 3.8 5.0 76
RENO HILL 8500 4.9 5.2 94 6.5 5.9 110
ROACH 9700 6.1 5.4 113 8.9 6.5 137
SAND LAKE 10050 12.7 11.5 110 13.0 8.9 146
SOUTH PASS 9040 5.1 6.5 78 6.4 7.2 89
WINDY PEAK 7900 1.9 2.8 68 3.6 4.4 82
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Basin wide percent of average 97 107
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.3 2.5 172 7.4 5.4 137
DIVIDE PEAK 8860 5.9 6.6 89 9.5 7.7 123
OLD BATTLE 9920 12.6 11.4 111 16.1 11.9 135
SANDSTONE RS 8150 4.3 3.3 130 9.1 6.8 134
WHISKEY PARK 8950 9.8 7.9 124 13.3 9.9 134
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Basin wide percent of average 116 133
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.4 5.2 65 4.4 5.2 85
BLIND BULL SUM 8900 7.8 9.5 82 7.2 8.2 88
EAST RIM DIVIDE 7930 3.5 4.3 81 4.3 4.4 98
ELKHART PARK G.S. 9400 4.6 4.6 100 5.5 5.3 104
GROS VENTRE SUMMIT 8750 4.6 5.1 90 5.8 5.1 114
KENDALL R.S. 7740 4.3 4.6 93 5.7 5.2 110
LOOMIS PARK 8240 5.7 5.9 97 6.7 6.2 108
NEW FORK LAKE 8340 3.5 3.8 92 3.8 4.6 83
SNIDER BASIN 8060 5.3 5.0 106 5.7 5.8 98
SPRING CREEK DIVIDE 9000 8.6 9.2 93 9.2 9.5 97
TRIPLE PEAK 8500 8.6 8.5 101 10.3 8.3 124
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Basin wide percent of average 91 101
LOWER GREEN RIVER
HAMS FORK 7840 3.5 3.6 97 4.3 4.4 98
HEWINTA 9500 4.0 2.8 143 6.6 5.7 116
HICKERSON PARK 9100 1.1 2.0 55 3.4 3.6 94
HOLE-IN-ROCK 9150 3.0 1.9 158 3.8 3.3 115
INDIAN CREEK 9425 8.7 9.0 97 8.4 9.0 93
KELLEY R.S. 8180 4.9 5.6 88 6.6 7.4 89
STEEL CREEK PARK 10100 5.1 5.0 102 7.0 6.1 115
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Basin wide percent of average 101 102
UPPER BEAR RIVER
BUG LAKE 7950 5.7 5.6 102 7.1 7.1 100
HAYDEN FORK 9100 -M 4.2 * -M 7.6 *
KELLEY R.S. 8180 4.9 5.6 88 6.6 7.4 89
LILY LAKE 9050 4.7 3.8 124 6.5 6.8 96
MONTE CRISTO 8960 8.1 7.3 111 9.6 9.2 104
SALT RIVER SUMMIT 7600 4.2 3.7 114 6.2 6.5 95
TRIAL LAKE 9960 8.8 7.4 119 9.7 8.4 115
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Basin wide percent of average 109 101
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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.