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: NOVEMBER 22 , 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 4.4 2.9 152 7.6 4.7 162
COTTONWOOD CREEK 7670 3.1 3.3 94 7.7 6.4 120
GRAND TARGHEE 9260 9.7 -M * 8.9 -M *
GRANITE CREEK 6770 3.0 2.3 130 5.0 4.1 122
GRASSY LAKE 7265 4.7 5.5 85 9.8 7.5 131
GROS VENTRE SUMMIT 8750 2.5 3.0 83 4.0 3.5 114
GUNSIGHT PASS 9820 3.1 -M * 4.7 -M *
LEWIS LAKE DIVIDE 7850 5.0 5.5 91 10.0 7.6 132
PHILLIPS BENCH 8200 4.1 4.7 87 6.6 5.7 116
SALT RIVER SUMMIT 7760 2.2 1.8 122 4.1 4.0 102
SNAKE RIVER STATION 6920 3.5 2.8 125 7.8 5.0 156
SPRING CREEK DIVIDE 9000 4.7 5.0 94 6.3 5.8 109
THUMB DIVIDE 7980 3.7 2.9 128 6.5 4.3 151
TOGWOTEE PASS 9580 5.6 5.6 100 7.4 5.9 125
TWO OCEAN PLATEAU 9240 9.9 6.7 148 8.8 6.5 135
WILLOW CREEK 8380 4.7 5.7 82 9.9 7.5 132
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Basin wide percent of average 106 129
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 6.7 5.5 122 7.0 4.6 152
BLACK BEAR 8170 8.0 7.2 111 10.8 8.3 130
CANYON 7870 2.7 2.3 117 4.3 3.9 110
FISHER CREEK 9100 7.9 6.7 118 10.5 7.7 136
MADISON PLATEAU 7750 5.3 4.3 123 9.4 5.6 168
NORTHEAST ENTRANCE 7350 1.7 1.5 113 3.9 3.2 122
PARKER PEAK 9400 6.4 5.3 121 8.4 4.4 191
SYLVAN LAKE 8420 4.2 4.9 86 8.3 5.6 148
THUMB DIVIDE 7980 3.7 2.9 128 6.5 4.3 151
TWO OCEAN PLATEAU 9240 9.9 6.7 148 8.8 6.5 135
WHISKEY CREEK 6800 3.9 2.6 150 7.4 4.7 157
WHITE MILL 8700 4.6 4.9 94 6.9 6.0 115
WOLVERINE 7650 4.3 2.0 215 5.6 3.6 156
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Basin wide percent of average 122 143
WIND RIVER
BURROUGHS CREEK 8750 2.9 2.8 104 3.8 3.8 100
CASTLE CREEK 8400 1.6 -M * 2.6 -M *
COLD SPRINGS 9630 2.0 2.5 80 3.3 3.6 92
DEER PARK 9700 2.7 4.0 68 5.6 5.7 98
HOBBS PARK 10100 4.5 4.3 105 4.7 3.9 121
LITTLE WARM 9370 1.6 2.6 62 3.7 3.7 100
SOUTH PASS 9040 3.3 3.8 87 4.6 4.8 96
ST. LAWRENCE ALT 8620 .9 2.0 45 2.5 3.0 83
TOGWOTEE PASS 9580 5.6 5.6 100 7.4 5.9 125
TOWNSEND CREEK 8700 1.7 2.3 74 4.1 3.8 108
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Basin wide percent of average 84 104
BIGHORN BASIN
BALD MTN. 9380 6.2 5.0 124 6.0 4.4 136
BEAR TRAP MEADOW 8200 1.3 1.3 100 3.2 3.0 107
BLACKWATER 9780 8.2 6.2 132 8.1 5.7 142
BONE SPRINGS DIV 9350 6.5 4.6 141 6.4 4.2 152
EVENING STAR 9200 6.7 6.4 105 9.8 6.5 151
GRAVE SPRINGS 8550 1.7 2.3 74 3.8 3.2 119
KIRWIN 9550 4.9 3.4 144 6.2 3.5 177
MARQUETTE 8760 1.5 -M * 5.4 3.6 150
MIDDLE POWDER 7760 2.1 2.9 72 5.6 4.3 130
OWL CREEK 8975 1.6 1.6 100 2.4 2.0 120
POWDER RIVER PASS 9480 3.7 2.6 142 5.2 3.5 149
SHELL CREEK 9580 6.9 4.4 157 6.5 3.8 171
SYLVAN LAKE 8420 4.2 4.9 86 8.3 5.6 148
SYLVAN ROAD 7120 3.0 2.4 125 5.6 5.2 108
TIMBER CREEK 7950 1.4 2.0 70 4.9 2.7 181
YOUNTS PEAK 8350 4.4 3.5 126 5.8 4.2 138
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Basin wide percent of average 117 143
SHOSHONE RIVER
BLACKWATER 9780 8.2 6.2 132 8.1 5.7 142
EVENING STAR 9200 6.7 6.4 105 9.8 6.5 151
KIRWIN 9550 4.9 3.4 144 6.2 3.5 177
MARQUETTE 8760 1.5 -M * 5.4 3.6 150
SYLVAN LAKE 8420 4.2 4.9 86 8.3 5.6 148
SYLVAN ROAD 7120 3.0 2.4 125 5.6 5.2 108
YOUNTS PEAK 8350 4.4 3.5 126 5.8 4.2 138
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Basin wide percent of average 117 143
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.3 1.3 100 3.2 3.0 107
BIG GOOSE 7990 3.5 1.8 194 7.2 2.8 257
BONE SPRINGS DIV 9350 6.5 4.6 141 6.4 4.2 152
BURGESS JUNCTION 7880 3.5 2.9 121 6.5 3.7 176
CLOUD PEAK RESERVOIR 9860 5.1 3.1 165 6.6 4.3 153
DOME LAKE 8880 4.8 3.6 133 7.8 4.2 186
GRAVE SPRINGS 8550 1.7 2.3 74 3.8 3.2 119
HANSEN SAWMILL 8360 2.4 1.6 150 4.2 2.9 145
LITTLE GOOSE 8870 4.4 -M * 8.1 -M *
MIDDLE POWDER 7760 2.1 2.9 72 5.6 4.3 130
POWDER RIVER PASS 9480 3.7 2.6 142 5.2 3.5 149
SOLDIER PARK 8720 3.4 -M * 5.4 -M *
SUCKER CREEK 8880 5.6 2.6 215 6.8 4.0 170
TIE CREEK 6870 1.9 1.1 173 7.0 3.4 206
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Basin wide percent of average 138 162
BELLE FOURCHE
BLIND PARK 6890 1.6 1.6 100 2.4 4.0 60
COLE CANYON 5910 .9 1.7 53 2.6 2.7 96
NORTH RAPID CREEK 6130 2.1 1.3 162 2.0 3.5 57
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Basin wide percent of average 100 69
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 7.4 -M * 9.2 -M *
CINNABAR PARK 9574 3.7 4.4 84 6.5 5.5 118
COLUMBINE 9160 4.2 3.7 114 6.6 5.1 129
DIVIDE PEAK 8880 4.5 4.0 112 7.8 5.1 153
ELK RIVER 8700 3.9 2.2 177 5.8 4.3 135
JOE WRIGHT 10120 3.5 5.3 66 7.5 6.5 115
NORTH FRENCH CREEK 10130 5.5 6.4 86 6.6 6.3 105
OLD BATTLE 10000 8.1 7.2 112 10.1 7.4 136
SAGE CREEK BASIN 7850 2.8 2.3 122 4.5 3.0 150
SOUTH BRUSH CREEK 8440 2.0 2.2 91 4.7 4.5 104
TOWER 10500 7.8 9.9 79 10.5 8.5 124
WEBBER SPRINGS 9250 5.4 5.1 106 8.4 6.3 133
WILLOW CREEK PASS 9540 2.1 2.9 72 4.0 3.7 108
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Basin wide percent of average 96 125
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 3.5 4.7 74 5.6 5.1 110
CASPER MTN. 7900 3.1 3.8 82 7.0 4.5 156
DEADMAN HILL 10220 6.3 4.3 147 6.3 4.5 140
DEER PARK 9700 2.7 4.0 68 5.6 5.7 98
LAPRELE CREEK 8375 1.9 2.5 76 4.3 3.6 119
RENO HILL 8400 3.4 3.5 97 5.3 4.4 120
ROACH 9700 4.5 3.3 136 6.7 4.4 152
SAND LAKE 10050 6.9 7.4 93 7.4 5.9 125
SOUTH PASS 9040 3.3 3.8 87 4.6 4.8 96
WINDY PEAK 7900 1.8 1.8 100 3.3 3.1 106
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Basin wide percent of average 96 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 4.0 1.4 286 5.1 3.6 142
DIVIDE PEAK 8880 4.5 4.0 112 7.8 5.1 153
OLD BATTLE 10000 8.1 7.2 112 10.1 7.4 136
SANDSTONE RS 8150 2.5 1.7 147 4.6 4.6 100
WHISKEY PARK 8950 4.9 4.7 104 8.4 6.1 138
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Basin wide percent of average 126 134
UPPER GREEN RIVER
BIG SANDY OPENING 9080 3.1 3.1 100 3.9 3.5 111
BLIND BULL SUM 8650 4.1 5.2 79 4.8 5.0 96
EAST RIM DIVIDE 7930 1.8 2.3 78 3.7 2.9 128
ELKHART PARK G.S. 9400 2.8 2.6 108 4.8 3.7 130
GROS VENTRE SUMMIT 8750 2.5 3.0 83 4.0 3.5 114
GUNSIGHT PASS 9820 3.1 -M * 4.7 -M *
KENDALL R.S. 7740 2.9 2.3 126 4.8 3.3 145
LOOMIS PARK 8240 2.8 3.2 88 5.1 3.9 131
NEW FORK LAKE 8340 2.7 2.0 135 4.1 3.2 128
POCKET CREEK 9360 3.0 -M * 4.1 -M *
SNIDER BASIN 8060 2.3 2.6 88 3.6 3.6 100
SPRING CREEK DIVIDE 9000 4.7 5.0 94 6.3 5.8 109
TRIPLE PEAK 8500 4.7 4.6 102 7.0 5.1 137
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Basin wide percent of average 96 120
LOWER GREEN RIVER
HAMS FORK 7840 2.1 1.7 124 4.0 2.9 138
HEWINTA 9519 1.4 1.7 82 4.8 4.2 114
HICKERSON PARK 9145 1.3 1.2 108 5.2 2.8 186
HOLE-IN-ROCK 9150 1.4 1.2 117 5.0 2.6 192
INDIAN CREEK 9425 5.2 4.9 106 6.0 5.5 109
KELLEY R.S. 8180 3.2 3.1 103 5.7 4.5 127
STEEL CREEK PARK 10200 2.6 3.2 81 5.4 4.4 123
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Basin wide percent of average 101 134
UPPER BEAR RIVER
BUG LAKE 7950 3.5 3.1 113 5.8 4.6 126
HAYDEN FORK 9212 2.8 2.3 122 6.9 5.0 138
KELLEY R.S. 8180 3.2 3.1 103 5.7 4.5 127
LILY LAKE 9156 1.9 2.3 83 5.1 4.7 109
MONTE CRISTO 8960 4.4 3.9 113 6.2 5.8 107
SALT RIVER SUMMIT 7760 2.2 1.8 122 4.1 4.0 102
TRIAL LAKE 9992 4.6 4.4 105 5.4 5.5 98
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Basin wide percent of average 108 115
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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.
