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 25 , 2011
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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 4.6 3.3 139 7.9 5.2 152
COTTONWOOD CREEK 7670 3.2 3.7 86 7.7 6.9 112
GRAND TARGHEE 9260 9.8 -M * 9.1 -M *
GRANITE CREEK 6770 3.1 2.7 115 5.1 4.6 111
GRASSY LAKE 7265 4.9 6.2 79 10.1 8.2 123
GROS VENTRE SUMMIT 8750 2.6 3.3 79 4.1 3.8 108
GUNSIGHT PASS 9820 3.3 -M * 4.8 -M *
LEWIS LAKE DIVIDE 7850 5.3 6.2 85 10.4 8.3 125
PHILLIPS BENCH 8200 4.4 5.2 85 6.9 6.3 110
SALT RIVER SUMMIT 7760 2.3 2.0 115 4.2 4.3 98
SNAKE RIVER STATION 6920 3.6 3.2 112 8.0 5.5 145
SPRING CREEK DIVIDE 9000 4.8 5.6 86 6.4 6.3 102
THUMB DIVIDE 7980 3.9 3.3 118 6.7 4.6 146
TOGWOTEE PASS 9580 5.8 6.1 95 7.5 6.3 119
TWO OCEAN PLATEAU 9240 10.2 7.2 142 9.1 7.1 128
WILLOW CREEK 8380 4.7 6.3 75 9.9 8.1 122
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Basin wide percent of average 99 122
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 7.0 6.1 115 7.5 5.0 150
BLACK BEAR 8170 8.6 8.1 106 11.3 9.0 126
CANYON 7870 2.9 2.7 107 4.6 4.2 110
FISHER CREEK 9100 9.1 7.7 118 11.0 8.4 131
MADISON PLATEAU 7750 5.8 5.1 114 9.8 6.1 161
NORTHEAST ENTRANCE 7350 1.7 1.9 89 4.0 3.5 114
PARKER PEAK 9400 6.7 5.8 116 8.7 4.8 181
SYLVAN LAKE 8420 4.3 5.6 77 8.4 6.1 138
THUMB DIVIDE 7980 3.9 3.3 118 6.7 4.6 146
TWO OCEAN PLATEAU 9240 10.2 7.2 142 9.1 7.1 128
WHISKEY CREEK 6800 4.1 3.1 132 7.5 5.1 147
WHITE MILL 8700 4.8 5.5 87 7.2 6.6 109
WOLVERINE 7650 4.1 2.3 178 5.7 3.9 146
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Basin wide percent of average 114 136
WIND RIVER
BURROUGHS CREEK 8750 3.2 3.2 100 4.1 4.2 98
CASTLE CREEK 8400 1.7 -M * 2.8 -M *
COLD SPRINGS 9630 2.1 2.7 78 3.4 3.8 89
DEER PARK 9700 2.8 4.1 68 5.9 6.3 94
HOBBS PARK 10100 4.5 4.6 98 4.7 4.2 112
LITTLE WARM 9370 1.7 2.8 61 3.9 4.0 98
SOUTH PASS 9040 3.4 4.2 81 4.8 5.2 92
ST. LAWRENCE ALT 8620 .8 2.2 36 2.5 3.2 78
TOGWOTEE PASS 9580 5.8 6.1 95 7.5 6.3 119
TOWNSEND CREEK 8700 1.8 2.5 72 4.2 4.0 105
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Basin wide percent of average 81 100
BIGHORN BASIN
BALD MTN. 9380 6.2 5.2 119 6.2 4.7 132
BEAR TRAP MEADOW 8200 1.5 1.4 107 3.4 3.1 110
BLACKWATER 9780 8.7 6.7 130 8.4 6.2 135
BONE SPRINGS DIV 9350 6.6 4.8 138 6.7 4.5 149
EVENING STAR 9200 7.4 7.0 106 10.3 7.1 145
GRAVE SPRINGS 8550 1.8 2.4 75 3.9 3.3 118
KIRWIN 9550 5.0 3.7 135 6.3 3.7 170
MARQUETTE 8760 1.0 -M * 5.4 3.8 142
MIDDLE POWDER 7760 2.1 3.1 68 5.7 4.5 127
OWL CREEK 8975 1.7 1.7 100 2.6 2.0 130
POWDER RIVER PASS 9480 3.8 2.8 136 5.3 3.7 143
SHELL CREEK 9580 7.0 4.6 152 6.4 4.0 160
SYLVAN LAKE 8420 4.3 5.6 77 8.4 6.1 138
SYLVAN ROAD 7120 3.0 2.7 111 5.6 5.7 98
TIMBER CREEK 7950 1.5 2.1 71 5.0 2.8 179
YOUNTS PEAK 8350 4.6 4.0 115 5.9 4.5 131
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Basin wide percent of average 113 137
SHOSHONE RIVER
BLACKWATER 9780 8.7 6.7 130 8.4 6.2 135
EVENING STAR 9200 7.4 7.0 106 10.3 7.1 145
KIRWIN 9550 5.0 3.7 135 6.3 3.7 170
MARQUETTE 8760 1.0 -M * 5.4 3.8 142
SYLVAN LAKE 8420 4.3 5.6 77 8.4 6.1 138
SYLVAN ROAD 7120 3.0 2.7 111 5.6 5.7 98
YOUNTS PEAK 8350 4.6 4.0 115 5.9 4.5 131
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Basin wide percent of average 111 136
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.5 1.4 107 3.4 3.1 110
BIG GOOSE 7990 3.6 2.0 180 7.4 2.8 264
BONE SPRINGS DIV 9350 6.6 4.8 138 6.7 4.5 149
BURGESS JUNCTION 7880 3.6 3.1 116 6.8 3.8 179
CLOUD PEAK RESERVOIR 9860 5.1 3.3 155 6.8 4.5 151
DOME LAKE 8880 4.9 3.7 132 7.8 4.5 173
GRAVE SPRINGS 8550 1.8 2.4 75 3.9 3.3 118
HANSEN SAWMILL 8360 2.4 1.7 141 4.2 3.0 140
LITTLE GOOSE 8870 4.4 -M * 8.2 -M *
MIDDLE POWDER 7760 2.1 3.1 68 5.7 4.5 127
POWDER RIVER PASS 9480 3.8 2.8 136 5.3 3.7 143
SOLDIER PARK 8720 3.5 -M * 5.3 -M *
SUCKER CREEK 8880 5.5 2.8 196 6.9 4.1 168
TIE CREEK 6870 1.9 1.1 173 7.1 3.5 203
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Basin wide percent of average 133 159
BELLE FOURCHE
BLIND PARK 6890 1.8 1.7 106 2.5 4.2 60
COLE CANYON 5910 .9 1.8 50 2.6 2.8 93
NORTH RAPID CREEK 6130 2.1 1.4 150 2.1 3.6 58
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Basin wide percent of average 98 68
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 7.5 -M * 9.2 -M *
CINNABAR PARK 9574 3.8 4.8 79 6.6 5.9 112
COLUMBINE 9160 4.2 4.1 102 6.6 5.5 120
DIVIDE PEAK 8880 4.3 4.3 100 7.7 5.5 140
ELK RIVER 8700 3.8 2.5 152 5.8 4.6 126
JOE WRIGHT 10120 3.3 5.6 59 7.6 6.9 110
NORTH FRENCH CREEK 10130 5.5 6.9 80 6.6 6.7 99
OLD BATTLE 10000 8.1 7.8 104 10.2 8.0 128
SAGE CREEK BASIN 7850 2.8 2.5 112 4.5 3.2 141
SOUTH BRUSH CREEK 8440 2.0 2.4 83 4.7 4.7 100
TOWER 10500 7.9 10.8 73 10.5 9.2 114
WEBBER SPRINGS 9250 5.4 5.6 96 8.5 6.8 125
WILLOW CREEK PASS 9540 2.0 3.1 65 4.1 3.9 105
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Basin wide percent of average 88 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 3.5 5.1 69 5.6 5.5 102
CASPER MTN. 7900 3.1 4.1 76 7.0 4.8 146
DEADMAN HILL 10220 6.2 4.5 138 6.3 4.7 134
DEER PARK 9700 2.8 4.1 68 5.9 6.3 94
LAPRELE CREEK 8375 1.9 2.8 68 4.3 3.8 113
RENO HILL 8400 3.5 3.7 95 5.4 4.6 117
ROACH 9700 4.6 3.7 124 6.7 4.7 143
SAND LAKE 10050 7.0 8.0 88 7.5 6.3 119
SOUTH PASS 9040 3.4 4.2 81 4.8 5.2 92
WINDY PEAK 7900 1.9 1.9 100 3.4 3.4 100
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Basin wide percent of average 90 115
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.0 1.6 250 5.0 3.9 128
DIVIDE PEAK 8880 4.3 4.3 100 7.7 5.5 140
OLD BATTLE 10000 8.1 7.8 104 10.2 8.0 128
SANDSTONE RS 8150 2.3 1.9 121 4.6 4.9 94
WHISKEY PARK 8950 5.0 5.2 96 8.4 6.7 125
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Basin wide percent of average 114 124
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.1 3.4 91 3.9 3.8 103
BLIND BULL SUM 8650 4.3 5.8 74 4.9 5.5 89
EAST RIM DIVIDE 7930 1.8 2.6 69 3.7 3.1 119
ELKHART PARK G.S. 9400 2.9 2.9 100 4.8 3.9 123
GROS VENTRE SUMMIT 8750 2.6 3.3 79 4.1 3.8 108
GUNSIGHT PASS 9820 3.3 -M * 4.8 -M *
KENDALL R.S. 7740 2.9 2.6 112 4.8 3.6 133
LOOMIS PARK 8240 2.8 3.6 78 5.1 4.3 119
NEW FORK LAKE 8340 2.8 2.3 122 4.2 3.4 124
POCKET CREEK 9360 2.9 -M * 4.0 -M *
SNIDER BASIN 8060 2.3 3.0 77 3.6 3.9 92
SPRING CREEK DIVIDE 9000 4.8 5.6 86 6.4 6.3 102
TRIPLE PEAK 8500 4.7 5.1 92 7.1 5.6 127
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Basin wide percent of average 87 111
LOWER GREEN RIVER
HAMS FORK 7840 2.1 2.0 105 4.0 3.1 129
HEWINTA 9519 1.5 1.9 79 4.9 4.4 111
HICKERSON PARK 9145 1.6 1.3 123 5.4 3.0 180
HOLE-IN-ROCK 9150 1.4 1.3 108 5.0 2.8 179
INDIAN CREEK 9425 5.2 5.5 95 6.0 6.0 100
KELLEY R.S. 8180 3.1 3.5 89 5.8 4.9 118
STEEL CREEK PARK 10200 .0 3.5 0 5.5 4.6 120
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Basin wide percent of average 78 127
UPPER BEAR RIVER
BUG LAKE 7950 3.7 3.4 109 5.9 5.0 118
HAYDEN FORK 9212 2.7 2.5 108 6.9 5.4 128
KELLEY R.S. 8180 3.1 3.5 89 5.8 4.9 118
LILY LAKE 9156 1.9 2.5 76 5.0 5.0 100
MONTE CRISTO 8960 4.3 4.3 100 6.3 6.3 100
SALT RIVER SUMMIT 7760 2.3 2.0 115 4.2 4.3 98
TRIAL LAKE 9992 4.5 4.8 94 5.4 5.9 92
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Basin wide percent of average 98 107
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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.