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: NOVEMBER 15 , 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 1.6 2.0 80 5.2 4.0 130
COTTONWOOD CREEK 7600 4.2 2.4 175* 6.9 5.4 128
GRANITE CREEK 6770 1.6 1.6 100* 4.7 3.5 134
GRASSY LAKE 7265 3.6 3.9 92 10.4 6.3 165
GROS VENTRE SUMMIT 8750 2.9 2.4 121 4.5 3.0 150
LEWIS LAKE DIVIDE 7850 3.9 3.8 103 9.4 6.4 147
PHILLIPS BENCH 8200 2.8 3.4 82 7.2 4.8 150
SALT RIVER SUMMIT 7600 2.1 1.2 175* 4.5 3.4 132
SNAKE RIVER STATION 6920 1.8 1.9 95* 8.1 4.2 193
SPRING CREEK DIVIDE 9000 -M 3.6 * -M 4.8 *
THUMB DIVIDE 7980 1.6 2.1 76 4.3 3.6 119
TOGWOTEE PASS 9580 4.8 4.6 104 5.9 5.0 118
TWO OCEAN PLATEAU 9240 4.8 5.4 89 6.2 5.5 113
WILLOW CREEK 8450 5.0 4.3 116 8.5 6.4 133
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Basin wide percent of average 104 140
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.6 4.7 77 4.2 3.9 108
BLACK BEAR 8170 6.5 5.5 118 10.4 6.8 153
CANYON 8090 2.1 1.7 124 5.0 3.3 152
FISHER CREEK 9100 6.5 5.3 123 9.4 6.4 147
MADISON PLATEAU 7750 3.0 3.3 91 6.5 4.7 138
NORTHEAST ENTRANCE 7350 .5 1.1 45* 5.0 2.7 185
PARKER PEAK 9400 3.9 4.4 89 5.5 3.8 145
SYLVAN LAKE 8420 2.4 3.9 62 7.0 4.8 146
THUMB DIVIDE 7980 1.6 2.1 76 4.3 3.6 119
TWO OCEAN PLATEAU 9240 4.8 5.4 89 6.2 5.5 113
WHISKEY CREEK 6800 1.8 1.9 95 5.6 4.0 140
WHITE MILL 8700 3.8 3.9 97 6.6 5.1 129
WOLVERINE 7650 1.1 1.5 73 3.4 3.1 110
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Basin wide percent of average 93 137
WIND RIVER
BURROUGHS CREEK 8750 2.0 2.2 91 3.9 3.2 122
COLD SPRINGS 9630 .9 2.1 43 2.2 3.0 73
DEER PARK 9700 3.2 3.7 86 5.1 4.7 109
HOBBS PARK 10100 2.5 3.7 68 2.8 3.3 85
LITTLE WARM 9370 1.7 2.2 77 2.5 3.1 81
SOUTH PASS 9040 3.1 3.1 100 5.0 4.0 125
ST. LAWRENCE ALT 8620 1.2 1.8 67 2.5 2.6 96
TOGWOTEE PASS 9580 4.8 4.6 104 5.9 5.0 118
TOWNSEND CREEK 8700 1.7 2.0 85 4.0 3.3 121
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Basin wide percent of average 83 105
BIGHORN BASIN
BALD MTN. 9380 6.2 4.5 138 4.7 3.8 124
BEAR TRAP MEADOW 8200 1.5 1.1 136 2.3 2.5 92
BLACKWATER 9780 4.5 5.1 88 4.9 4.9 100
BONE SPRINGS DIV 9350 5.8 4.1 141 4.4 3.7 119
EVENING STAR 9200 3.9 5.2 75 -M 5.4 *
GRAVE SPRINGS 8550 2.0 2.0 100 2.5 2.9 86
KIRWIN 9550 2.4 3.0 80 3.3 2.9 114
MARQUETTE 8760 .1 2.8 4 2.5 3.2 78
MIDDLE POWDER 7760 2.9 2.5 116 3.4 3.7 92
OWL CREEK 8975 1.9 1.5 127 2.5 1.7 147
POWDER RIVER PASS 9480 2.8 2.3 122 3.4 3.0 113
SHELL CREEK 9580 5.6 3.9 144 3.9 3.2 122
SYLVAN LAKE 8420 2.4 3.9 62 7.0 4.8 146
SYLVAN ROAD 7120 .4 1.7 24 5.1 4.3 119
TIMBER CREEK 7950 .3 1.9 16 2.7 2.3 117
YOUNTS PEAK 8350 1.4 2.8 50 4.0 3.4 118
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Basin wide percent of average 91 113
SHOSHONE RIVER
BLACKWATER 9780 4.5 5.1 88 4.9 4.9 100
EVENING STAR 9200 3.9 5.2 75 -M 5.4 *
KIRWIN 9550 2.4 3.0 80 3.3 2.9 114
MARQUETTE 8760 .1 2.8 4 2.5 3.2 78
SYLVAN LAKE 8420 2.4 3.9 62 7.0 4.8 146
SYLVAN ROAD 7120 .4 1.7 24 5.1 4.3 119
YOUNTS PEAK 8350 1.4 2.8 50 4.0 3.4 118
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Basin wide percent of average 62 114
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.5 1.1 136 2.3 2.5 92
BIG GOOSE 7990 -M 1.5 * -M 2.6 *
BONE SPRINGS DIV 9350 5.8 4.1 141 4.4 3.7 119
BURGESS JUNCTION 7880 2.1 2.7 78 3.9 3.2 122
CLOUD PEAK RESERVOIR 9860 2.7 2.7 100 2.7 3.7 73
DOME LAKE 8880 2.3 3.2 72 3.4 3.7 92
GRAVE SPRINGS 8550 2.0 2.0 100 2.5 2.9 86
HANSEN SAWMILL 8360 .3 1.3 23 1.5 2.5 60
MIDDLE POWDER 7760 2.9 2.5 116 3.4 3.7 92
POWDER RIVER PASS 9480 2.8 2.3 122 3.4 3.0 113
SUCKER CREEK 8880 3.3 2.4 138 4.1 3.4 121
TIE CREEK 6870 .6 1.2 50 3.9 3.1 126
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Basin wide percent of average 103 100
BELLE FOURCHE
BLIND PARK 6890 .8 1.5 53 2.8 3.5 80
COLE CANYON 5910 1.3 1.4 93 3.1 -M *
NORTH RAPID CREEK 6130 .7 1.0 70 2.4 3.2 75
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Basin wide percent of average 72 78
UPPER N. PLATTE RIVER
COLUMBINE 9160 3.6 2.6 138 6.3 4.3 147
DIVIDE PEAK 8860 4.5 3.2 141 6.6 4.4 150
ELK RIVER 8700 2.0 1.6 125* 5.1 3.7 138
JOE WRIGHT 10120 4.9 4.5 109 6.8 5.5 124
NORTH FRENCH CREEK 10130 5.6 5.3 106 6.6 5.4 122
OLD BATTLE 9920 7.3 5.7 128 8.8 6.3 140
SAGE CREEK BASIN 7850 3.5 1.9 184 5.2 2.5 208
SOUTH BRUSH CREEK 8440 2.3 1.7 135 3.9 3.9 100
TOWER 10500 8.4 7.7 109 10.1 7.1 142
WEBBER SPRINGS 9250 4.8 4.0 120 7.9 5.3 149
WILLOW CREEK PASS 9540 3.5 2.4 146 3.4 3.2 106
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Basin wide percent of average 124 137
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.2 3.8 111 5.3 4.3 123
CASPER MTN. 7850 2.8 3.1 90 3.9 3.8 103
DEADMAN HILL 10220 3.6 3.6 100 4.5 3.9 115
DEER PARK 9700 3.2 3.7 86 5.1 4.7 109
LAPRELE CREEK 8375 2.3 2.0 115 2.9 3.1 94
RENO HILL 8500 3.8 2.9 131 4.8 3.8 126
ROACH 9700 4.7 2.6 181 5.9 3.7 159
SAND LAKE 10050 5.9 6.0 98 6.3 5.1 124
SOUTH PASS 9040 3.1 3.1 100 5.0 4.0 125
WINDY PEAK 7900 1.1 1.4 79 2.4 2.7 89
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Basin wide percent of average 108 118
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .8 1.1 73* 3.9 3.1 126
DIVIDE PEAK 8860 4.5 3.2 141 6.6 4.4 150
OLD BATTLE 9920 7.3 5.7 128 8.8 6.3 140
SANDSTONE RS 8150 .8 1.3 62* 4.2 3.8 111
WHISKEY PARK 8950 3.7 3.7 100 6.6 5.2 127
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Basin wide percent of average 114 132
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.3 2.4 138 3.9 3.0 130
BLIND BULL SUM 8900 4.7 3.9 121 5.0 4.2 119
EAST RIM DIVIDE 7930 1.2 1.7 71 3.2 2.4 133
ELKHART PARK G.S. 9400 1.8 2.0 90 3.8 3.1 123
GROS VENTRE SUMMIT 8750 2.9 2.4 121 4.5 3.0 150
KENDALL R.S. 7740 1.2 1.7 71 3.7 2.8 132
LOOMIS PARK 8240 1.8 2.3 78 4.3 3.3 130
NEW FORK LAKE 8340 1.5 1.5 100 3.6 2.6 138
SNIDER BASIN 8060 2.6 1.9 137 4.2 3.0 140
SPRING CREEK DIVIDE 9000 -M 3.6 * -M 4.8 *
TRIPLE PEAK 8500 4.4 3.3 133 6.9 4.3 160
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Basin wide percent of average 110 136
LOWER GREEN RIVER
HAMS FORK 7840 1.7 1.2 142* 3.4 2.4 142
HEWINTA 9500 .5 1.4 36 4.6 3.6 128
HICKERSON PARK 9100 .3 .9 33 3.6 2.5 144
HOLE-IN-ROCK 9150 1.4 1.0 140 3.5 2.3 152
INDIAN CREEK 9425 4.7 3.7 127 5.2 4.7 111
KELLEY R.S. 8180 2.8 2.3 122 4.6 3.8 121
STEEL CREEK PARK 10100 3.4 2.7 126 4.7 3.7 127
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Basin wide percent of average 112 129
UPPER BEAR RIVER
BUG LAKE 7950 3.1 2.4 129 5.2 3.9 133
HAYDEN FORK 9100 2.0 1.8 111 7.0 4.2 167
KELLEY R.S. 8180 2.8 2.3 122 4.6 3.8 121
LILY LAKE 9050 2.8 1.8 156 5.6 4.0 140
MONTE CRISTO 8960 5.3 3.0 177* 7.4 5.0 148
SALT RIVER SUMMIT 7600 2.1 1.2 175* 4.5 3.4 132
TRIAL LAKE 9960 4.0 3.5 114 7.3 4.7 155
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Basin wide percent of average 138 143
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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.