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 SUNDAY: NOVEMBER 27 , 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 4.8 3.5 137 8.4 5.5 153
COTTONWOOD CREEK 7670 3.3 4.0 82 8.0 7.3 110
GRAND TARGHEE 9260 9.8 -M * 9.2 -M *
GRANITE CREEK 6770 3.3 2.9 114 5.3 4.8 110
GRASSY LAKE 7265 5.0 6.7 75 10.0 8.7 115
GROS VENTRE SUMMIT 8750 2.8 3.5 80 4.3 3.9 110
GUNSIGHT PASS 9820 3.5 -M * 5.0 -M *
LEWIS LAKE DIVIDE 7850 6.0 6.7 90 10.9 8.9 122
PHILLIPS BENCH 8200 4.4 5.6 79 7.0 6.7 104
SALT RIVER SUMMIT 7760 2.2 2.2 100 4.2 4.5 93
SNAKE RIVER STATION 6920 4.0 3.5 114 8.4 5.8 145
SPRING CREEK DIVIDE 9000 5.0 6.0 83 6.7 6.6 102
THUMB DIVIDE 7980 4.1 3.5 117 6.8 4.9 139
TOGWOTEE PASS 9580 6.1 6.4 95 7.9 6.7 118
TWO OCEAN PLATEAU 9240 10.8 7.6 142 9.5 7.5 127
WILLOW CREEK 8380 4.9 6.8 72 10.2 8.5 120
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Basin wide percent of average 97 119
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 7.3 6.4 114 7.6 5.3 143
BLACK BEAR 8170 8.7 8.7 100 11.1 9.5 117
CANYON 7870 3.1 2.9 107 4.9 4.4 111
FISHER CREEK 9100 9.5 8.2 116 11.3 8.8 128
MADISON PLATEAU 7750 5.6 5.4 104 9.7 6.5 149
NORTHEAST ENTRANCE 7350 1.9 2.1 90 4.1 3.6 114
PARKER PEAK 9400 6.8 6.1 111 8.8 5.0 176
SYLVAN LAKE 8420 4.5 5.9 76 8.7 6.4 136
THUMB DIVIDE 7980 4.1 3.5 117 6.8 4.9 139
TWO OCEAN PLATEAU 9240 10.8 7.6 142 9.5 7.5 127
WHISKEY CREEK 6800 4.0 3.4 118 7.5 5.4 139
WHITE MILL 8700 5.1 5.9 86 7.2 6.9 104
WOLVERINE 7650 4.1 2.6 158 5.6 4.1 137
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Basin wide percent of average 110 131
WIND RIVER
BURROUGHS CREEK 8750 3.4 3.4 100 4.3 4.4 98
CASTLE CREEK 8400 1.9 -M * 2.9 -M *
COLD SPRINGS 9630 2.3 2.9 79 3.6 3.9 92
DEER PARK 9700 2.9 4.3 67 6.0 6.6 91
HOBBS PARK 10100 4.7 4.9 96 4.9 4.3 114
LITTLE WARM 9370 2.0 3.1 65 4.1 4.2 98
SOUTH PASS 9040 3.5 4.7 74 4.8 5.5 87
ST. LAWRENCE ALT 8620 .7 2.4 29 2.4 3.3 73
TOGWOTEE PASS 9580 6.1 6.4 95 7.9 6.7 118
TOWNSEND CREEK 8700 1.6 2.7 59 4.3 4.2 102
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Basin wide percent of average 78 98
BIGHORN BASIN
BALD MTN. 9380 6.4 5.5 116 6.2 4.9 127
BEAR TRAP MEADOW 8200 1.5 1.5 100 3.3 3.2 103
BLACKWATER 9780 9.2 7.2 128 9.0 6.5 138
BONE SPRINGS DIV 9350 6.8 5.0 136 6.7 4.6 146
EVENING STAR 9200 7.8 7.6 103 10.6 7.4 143
GRAVE SPRINGS 8550 2.0 2.6 77 4.2 3.4 124
KIRWIN 9550 5.1 3.9 131 6.4 3.8 168
MARQUETTE 8760 1.2 -M * 5.7 3.9 146
MIDDLE POWDER 7760 2.4 3.3 73 5.7 4.6 124
OWL CREEK 8975 1.7 1.8 94 2.6 2.1 124
POWDER RIVER PASS 9480 3.8 3.0 127 5.3 3.8 139
SHELL CREEK 9580 7.2 4.8 150 6.6 4.2 157
SYLVAN LAKE 8420 4.5 5.9 76 8.7 6.4 136
SYLVAN ROAD 7120 3.2 3.2 100 6.0 6.0 100
TIMBER CREEK 7950 1.4 2.2 64 4.9 2.9 169
YOUNTS PEAK 8350 4.8 4.4 109 6.0 4.7 128
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Basin wide percent of average 110 135
SHOSHONE RIVER
BLACKWATER 9780 9.2 7.2 128 9.0 6.5 138
EVENING STAR 9200 7.8 7.6 103 10.6 7.4 143
KIRWIN 9550 5.1 3.9 131 6.4 3.8 168
MARQUETTE 8760 1.2 -M * 5.7 3.9 146
SYLVAN LAKE 8420 4.5 5.9 76 8.7 6.4 136
SYLVAN ROAD 7120 3.2 3.2 100 6.0 6.0 100
YOUNTS PEAK 8350 4.8 4.4 109 6.0 4.7 128
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Basin wide percent of average 107 135
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.5 1.5 100 3.3 3.2 103
BIG GOOSE 7990 3.7 2.1 176 7.4 2.9 255
BONE SPRINGS DIV 9350 6.8 5.0 136 6.7 4.6 146
BURGESS JUNCTION 7880 3.7 3.3 112 6.6 4.0 165
CLOUD PEAK RESERVOIR 9860 5.4 3.5 154 6.8 4.6 148
DOME LAKE 8880 4.9 3.9 126 8.0 4.6 174
GRAVE SPRINGS 8550 2.0 2.6 77 4.2 3.4 124
HANSEN SAWMILL 8360 2.3 1.9 121 4.2 3.0 140
LITTLE GOOSE 8870 4.5 -M * 8.3 -M *
MIDDLE POWDER 7760 2.4 3.3 73 5.7 4.6 124
POWDER RIVER PASS 9480 3.8 3.0 127 5.3 3.8 139
SOLDIER PARK 8720 3.5 -M * 5.4 -M *
SUCKER CREEK 8880 5.6 3.0 187 6.8 4.2 162
TIE CREEK 6870 1.8 1.1 164 7.0 3.6 194
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Basin wide percent of average 128 155
BELLE FOURCHE
BLIND PARK 6890 1.9 1.8 106 2.8 4.3 65
COLE CANYON 5910 1.1 1.9 58 2.7 2.9 93
NORTH RAPID CREEK 6130 2.4 1.5 160 2.2 3.7 59
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Basin wide percent of average 104 71
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 7.5 -M * 9.2 -M *
CINNABAR PARK 9574 4.1 5.1 80 6.9 6.2 111
COLUMBINE 9160 4.3 4.4 98 6.5 5.8 112
DIVIDE PEAK 8880 4.3 4.6 93 7.8 5.7 137
ELK RIVER 8700 4.0 2.7 148 5.8 4.8 121
JOE WRIGHT 10120 3.3 5.9 56 7.9 7.2 110
NORTH FRENCH CREEK 10130 5.7 7.2 79 6.8 6.9 99
OLD BATTLE 10000 8.1 8.2 99 10.2 8.4 121
SAGE CREEK BASIN 7850 2.8 2.7 104 4.6 3.3 139
SOUTH BRUSH CREEK 8440 2.1 2.6 81 4.5 4.9 92
TOWER 10500 8.1 11.4 71 10.5 9.7 108
WEBBER SPRINGS 9250 5.4 6.0 90 8.6 7.1 121
WILLOW CREEK PASS 9540 2.2 3.3 67 4.4 4.1 107
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Basin wide percent of average 85 114
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 3.8 5.4 70 6.0 5.7 105
CASPER MTN. 7900 3.8 4.2 90 7.5 4.9 153
DEADMAN HILL 10220 6.4 4.7 136 6.7 4.9 137
DEER PARK 9700 2.9 4.3 67 6.0 6.6 91
LAPRELE CREEK 8375 2.0 2.9 69 4.4 4.0 110
RENO HILL 8400 4.1 3.9 105 5.8 4.8 121
ROACH 9700 4.8 3.9 123 6.8 4.9 139
SAND LAKE 10050 7.2 8.4 86 7.7 6.6 117
SOUTH PASS 9040 3.5 4.7 74 4.8 5.5 87
WINDY PEAK 7900 1.9 2.1 90 3.5 3.5 100
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Basin wide percent of average 91 115
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 3.9 1.7 229 4.9 4.0 122
DIVIDE PEAK 8880 4.3 4.6 93 7.8 5.7 137
OLD BATTLE 10000 8.1 8.2 99 10.2 8.4 121
SANDSTONE RS 8150 2.2 2.1 105 4.6 5.1 90
WHISKEY PARK 8950 5.1 5.5 93 8.6 7.1 121
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Basin wide percent of average 107 119
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.1 3.6 86 4.0 4.0 100
BLIND BULL SUM 8650 4.6 6.2 74 5.1 5.8 88
EAST RIM DIVIDE 7930 2.1 2.8 75 3.8 3.2 119
ELKHART PARK G.S. 9400 3.2 3.1 103 5.0 4.1 122
GROS VENTRE SUMMIT 8750 2.8 3.5 80 4.3 3.9 110
GUNSIGHT PASS 9820 3.5 -M * 5.0 -M *
KENDALL R.S. 7740 3.3 2.8 118 5.1 3.7 138
LOOMIS PARK 8240 3.2 3.8 84 5.5 4.5 122
NEW FORK LAKE 8340 3.0 2.4 125 4.4 3.6 122
POCKET CREEK 9360 3.0 -M * 4.0 -M *
SNIDER BASIN 8060 2.4 3.2 75 3.6 4.1 88
SPRING CREEK DIVIDE 9000 5.0 6.0 83 6.7 6.6 102
TRIPLE PEAK 8500 5.1 5.5 93 7.4 5.9 125
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Basin wide percent of average 88 111
LOWER GREEN RIVER
HAMS FORK 7840 2.2 2.1 105 4.3 3.3 130
HEWINTA 9519 1.4 2.0 70 4.8 4.6 104
HICKERSON PARK 9145 1.9 1.4 136 5.4 3.1 174
HOLE-IN-ROCK 9150 1.5 1.3 115 5.0 2.8 179
INDIAN CREEK 9425 5.4 5.9 92 6.1 6.3 97
KELLEY R.S. 8180 3.1 3.7 84 5.6 5.2 108
STEEL CREEK PARK 10200 2.8 3.7 76 5.5 4.8 115
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Basin wide percent of average 91 122
UPPER BEAR RIVER
BUG LAKE 7950 3.7 3.6 103 6.0 5.2 115
HAYDEN FORK 9212 2.7 2.7 100 6.9 5.6 123
KELLEY R.S. 8180 3.1 3.7 84 5.6 5.2 108
LILY LAKE 9156 1.9 2.6 73 5.1 5.3 96
MONTE CRISTO 8960 4.8 4.6 104 6.5 6.6 98
SALT RIVER SUMMIT 7760 2.2 2.2 100 4.2 4.5 93
TRIAL LAKE 9992 4.5 5.1 88 5.4 6.1 89
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Basin wide percent of average 93 103
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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.