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 FRIDAY: NOVEMBER 17 , 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 2.1 2.3 91 5.6 4.2 133
COTTONWOOD CREEK 7600 4.7 2.7 174 7.5 5.7 132
GRANITE CREEK 6770 2.0 1.8 111* 5.1 3.7 138
GRASSY LAKE 7265 4.4 4.4 100 11.3 6.8 166
GROS VENTRE SUMMIT 8750 3.1 2.6 119 4.5 3.2 141
LEWIS LAKE DIVIDE 7850 4.7 4.3 109 10.5 6.8 154
PHILLIPS BENCH 8200 3.3 3.8 87 7.6 5.1 149
SALT RIVER SUMMIT 7600 2.4 1.4 171* 4.9 3.6 136
SNAKE RIVER STATION 6920 2.3 2.2 105 8.6 4.5 191
SPRING CREEK DIVIDE 9000 5.2 4.0 130 6.4 5.2 123
THUMB DIVIDE 7980 1.9 2.3 83 4.5 3.9 115
TOGWOTEE PASS 9580 5.2 4.9 106 6.5 5.2 125
TWO OCEAN PLATEAU 9240 5.3 5.8 91 6.6 5.9 112
WILLOW CREEK 8450 5.3 4.7 113 8.9 6.8 131
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Basin wide percent of average 110 140
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.0 5.0 80 4.6 4.2 110
BLACK BEAR 8170 6.9 6.0 115 10.8 7.3 148
CANYON 8090 2.1 1.9 111 5.1 3.4 150
FISHER CREEK 9100 7.0 5.8 121 10.0 6.8 147
MADISON PLATEAU 7750 3.2 3.6 89 6.8 5.1 133
NORTHEAST ENTRANCE 7350 .7 1.3 54 5.3 2.9 183
PARKER PEAK 9400 4.3 4.7 91 5.8 4.1 141
SYLVAN LAKE 8420 2.8 4.2 67 7.3 5.0 146
THUMB DIVIDE 7980 1.9 2.3 83 4.5 3.9 115
TWO OCEAN PLATEAU 9240 5.3 5.8 91 6.6 5.9 112
WHISKEY CREEK 6800 2.1 2.1 100 5.8 4.2 138
WHITE MILL 8700 4.4 4.2 105 7.4 5.4 137
WOLVERINE 7650 1.4 1.7 82 3.7 3.3 112
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Basin wide percent of average 95 136
WIND RIVER
BURROUGHS CREEK 8750 2.4 2.4 100 4.4 3.4 129
COLD SPRINGS 9630 1.1 2.2 50 2.3 3.2 72
DEER PARK 9700 3.4 3.8 89 5.2 5.0 104
HOBBS PARK 10100 2.7 3.9 69 3.1 3.5 89
LITTLE WARM 9370 2.0 2.4 83 2.9 3.3 88
SOUTH PASS 9040 3.4 3.3 103 5.0 4.2 119
ST. LAWRENCE ALT 8620 1.4 1.9 74 2.5 2.7 93
TOGWOTEE PASS 9580 5.2 4.9 106 6.5 5.2 125
TOWNSEND CREEK 8700 2.0 2.1 95 4.3 3.4 126
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Basin wide percent of average 88 107
BIGHORN BASIN
BALD MTN. 9380 6.3 4.7 134 5.0 4.0 125
BEAR TRAP MEADOW 8200 1.7 1.2 142 2.6 2.7 96
BLACKWATER 9780 5.0 5.4 93 5.4 5.1 106
BONE SPRINGS DIV 9350 5.9 4.2 140 4.7 3.8 124
EVENING STAR 9200 4.4 5.6 79 -M 5.7 *
GRAVE SPRINGS 8550 2.1 2.1 100 2.5 2.9 86
KIRWIN 9550 2.6 3.1 84 3.7 3.1 119
MARQUETTE 8760 .2 2.9 7 2.7 3.3 82
MIDDLE POWDER 7760 3.0 2.6 115 3.4 3.9 87
OWL CREEK 8975 2.0 1.6 125 2.5 1.7 147
POWDER RIVER PASS 9480 2.9 2.4 121 3.5 3.1 113
SHELL CREEK 9580 5.7 4.0 142 4.0 3.4 118
SYLVAN LAKE 8420 2.8 4.2 67 7.3 5.0 146
SYLVAN ROAD 7120 .6 1.9 32 5.3 4.5 118
TIMBER CREEK 7950 .3 2.0 15 2.7 2.4 113
YOUNTS PEAK 8350 1.8 3.0 60 4.8 3.7 130
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Basin wide percent of average 93 114
SHOSHONE RIVER
BLACKWATER 9780 5.0 5.4 93 5.4 5.1 106
EVENING STAR 9200 4.4 5.6 79 -M 5.7 *
KIRWIN 9550 2.6 3.1 84 3.7 3.1 119
MARQUETTE 8760 .2 2.9 7 2.7 3.3 82
SYLVAN LAKE 8420 2.8 4.2 67 7.3 5.0 146
SYLVAN ROAD 7120 .6 1.9 32 5.3 4.5 118
YOUNTS PEAK 8350 1.8 3.0 60 4.8 3.7 130
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Basin wide percent of average 67 118
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.7 1.2 142 2.6 2.7 96
BIG GOOSE 7990 1.3 1.6 81 2.8 2.6 108
BONE SPRINGS DIV 9350 5.9 4.2 140 4.7 3.8 124
BURGESS JUNCTION 7880 2.3 2.8 82 4.1 3.3 124
CLOUD PEAK RESERVOIR 9860 3.0 2.8 107 3.2 3.9 82
DOME LAKE 8880 2.4 3.3 73 3.5 3.8 92
GRAVE SPRINGS 8550 2.1 2.1 100 2.5 2.9 86
HANSEN SAWMILL 8360 .4 1.4 29 1.6 2.6 62
MIDDLE POWDER 7760 3.0 2.6 115 3.4 3.9 87
POWDER RIVER PASS 9480 2.9 2.4 121 3.5 3.1 113
SUCKER CREEK 8880 3.6 2.5 144 4.3 3.6 119
TIE CREEK 6870 .7 1.2 58 4.0 3.2 125
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Basin wide percent of average 104 102
BELLE FOURCHE
BLIND PARK 6890 .9 1.6 56 3.0 3.7 81
COLE CANYON 5910 1.4 1.5 93 3.2 -M *
NORTH RAPID CREEK 6130 .7 1.1 64 2.5 3.2 78
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Basin wide percent of average 71 80
UPPER N. PLATTE RIVER
COLUMBINE 9160 3.6 2.9 124 6.5 4.6 141
DIVIDE PEAK 8860 4.6 3.4 135 6.8 4.6 148
ELK RIVER 8700 2.8 1.8 156* 5.4 3.8 142
JOE WRIGHT 10120 5.0 4.7 106 6.9 5.7 121
NORTH FRENCH CREEK 10130 6.4 5.6 114 7.3 5.6 130
OLD BATTLE 9920 7.5 6.1 123 9.4 6.7 140
SAGE CREEK BASIN 7850 3.5 2.0 175 5.2 2.7 193
SOUTH BRUSH CREEK 8440 2.5 1.8 139 4.2 4.0 105
TOWER 10500 8.5 8.3 102 10.5 7.6 138
WEBBER SPRINGS 9250 5.0 4.3 116 8.1 5.7 142
WILLOW CREEK PASS 9540 3.6 2.5 144 3.6 3.3 109
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Basin wide percent of average 122 136
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 4.6 4.1 112 5.5 4.5 122
CASPER MTN. 7850 3.0 3.3 91 4.0 4.0 100
DEADMAN HILL 10220 3.4 3.8 89 4.5 4.0 112
DEER PARK 9700 3.4 3.8 89 5.2 5.0 104
LAPRELE CREEK 8375 2.4 2.1 114 3.1 3.2 97
RENO HILL 8500 3.9 3.1 126 4.9 3.9 126
ROACH 9700 4.7 2.8 168 6.1 3.9 156
SAND LAKE 10050 6.3 6.4 98 6.8 5.3 128
SOUTH PASS 9040 3.4 3.3 103 5.0 4.2 119
WINDY PEAK 7900 1.5 1.5 100 2.6 2.8 93
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Basin wide percent of average 107 117
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .8 1.2 67 4.0 3.3 121
DIVIDE PEAK 8860 4.6 3.4 135 6.8 4.6 148
OLD BATTLE 9920 7.5 6.1 123 9.4 6.7 140
SANDSTONE RS 8150 .8 1.4 57* 4.3 4.1 105
WHISKEY PARK 8950 3.8 4.0 95 6.7 5.6 120
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Basin wide percent of average 109 128
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.7 2.6 142 4.3 3.2 134
BLIND BULL SUM 8900 5.1 4.3 119 5.5 4.5 122
EAST RIM DIVIDE 7930 1.4 1.9 74 3.4 2.5 136
ELKHART PARK G.S. 9400 2.1 2.2 95 4.1 3.3 124
GROS VENTRE SUMMIT 8750 3.1 2.6 119 4.5 3.2 141
KENDALL R.S. 7740 1.6 1.9 84 4.0 2.9 138
LOOMIS PARK 8240 2.1 2.6 81 4.6 3.5 131
NEW FORK LAKE 8340 1.8 1.7 106 4.0 2.8 143
SNIDER BASIN 8060 2.9 2.1 138 4.5 3.2 141
SPRING CREEK DIVIDE 9000 5.2 4.0 130 6.4 5.2 123
TRIPLE PEAK 8500 4.8 3.7 130 7.4 4.5 164
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Basin wide percent of average 114 136
LOWER GREEN RIVER
HAMS FORK 7840 2.0 1.4 143 3.5 2.6 135
HEWINTA 9500 .5 1.5 33 5.0 3.8 132
HICKERSON PARK 9100 .4 1.0 40 3.7 2.5 148
HOLE-IN-ROCK 9150 1.6 1.1 145 3.5 2.4 146
INDIAN CREEK 9425 5.4 4.1 132 5.9 5.0 118
KELLEY R.S. 8180 3.3 2.5 132 5.0 4.1 122
STEEL CREEK PARK 10100 3.6 2.9 124 4.9 3.9 126
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Basin wide percent of average 116 130
UPPER BEAR RIVER
BUG LAKE 7950 3.0 2.6 115 5.5 4.2 131
HAYDEN FORK 9100 2.1 2.0 105 7.4 4.4 168
KELLEY R.S. 8180 3.3 2.5 132 5.0 4.1 122
LILY LAKE 9050 2.7 1.9 142 5.6 4.2 133
MONTE CRISTO 8960 5.5 3.3 167 7.5 5.2 144
SALT RIVER SUMMIT 7600 2.4 1.4 171* 4.9 3.6 136
TRIAL LAKE 9960 3.9 3.8 103 7.4 4.9 151
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Basin wide percent of average 131 142
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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.