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 16 , 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 2.1 2.1 100 5.6 3.8 147
COTTONWOOD CREEK 7670 1.8 2.5 72 6.3 5.4 117
GRAND TARGHEE 9260 6.6 -M * 7.1 -M *
GRANITE CREEK 6770 1.5 1.7 88* 3.7 3.4 109
GRASSY LAKE 7265 2.0 4.1 49 7.5 6.2 121
GROS VENTRE SUMMIT 8750 1.4 2.5 56 2.9 3.0 97
GUNSIGHT PASS 9820 1.9 -M * 3.7 -M *
LEWIS LAKE DIVIDE 7850 2.1 4.0 53 6.9 6.1 113
PHILLIPS BENCH 8200 1.7 3.6 47 4.3 4.6 93
SALT RIVER SUMMIT 7760 1.4 1.3 108* 3.2 3.3 97
SNAKE RIVER STATION 6920 1.5 2.0 75 5.8 4.1 141
SPRING CREEK DIVIDE 9000 3.2 3.8 84 5.0 4.8 104
THUMB DIVIDE 7980 1.7 2.2 77 4.5 3.6 125
TOGWOTEE PASS 9580 3.8 4.7 81 5.5 4.9 112
TWO OCEAN PLATEAU 9240 7.0 5.6 125 6.2 5.4 115
WILLOW CREEK 8380 2.4 4.5 53 7.7 6.3 122
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Basin wide percent of average 75 116
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 5.1 4.7 109 5.4 3.8 142
BLACK BEAR 8170 5.7 5.6 102 8.4 6.8 124
CANYON 7870 1.6 1.8 89 3.4 3.3 103
FISHER CREEK 9100 4.9 5.4 91 7.4 6.3 117
MADISON PLATEAU 7750 2.9 3.4 85 6.9 4.6 150
NORTHEAST ENTRANCE 7350 .9 1.1 82* 3.1 2.7 115
PARKER PEAK 9400 4.5 4.5 100 6.4 3.8 168
SYLVAN LAKE 8420 2.6 4.0 65 6.6 4.6 143
THUMB DIVIDE 7980 1.7 2.2 77 4.5 3.6 125
TWO OCEAN PLATEAU 9240 7.0 5.6 125 6.2 5.4 115
WHISKEY CREEK 6800 2.0 2.0 100 5.4 3.9 138
WHITE MILL 8700 3.0 4.0 75 5.2 4.9 106
WOLVERINE 7650 3.0 1.5 200 4.4 3.0 147
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Basin wide percent of average 98 129
WIND RIVER
BURROUGHS CREEK 8750 1.6 2.3 70 2.7 3.2 84
CASTLE CREEK 8400 1.1 -M * 2.1 -M *
COLD SPRINGS 9630 1.3 2.2 59 2.4 3.2 75
DEER PARK 9700 2.2 3.7 59 4.8 5.0 96
HOBBS PARK 10100 3.5 3.8 92 3.8 3.5 109
LITTLE WARM 9370 .8 2.2 36 2.6 3.2 81
SOUTH PASS 9040 2.3 3.2 72 3.7 4.0 93
ST. LAWRENCE ALT 8620 .3 1.8 17 1.9 2.7 70
TOGWOTEE PASS 9580 3.8 4.7 81 5.5 4.9 112
TOWNSEND CREEK 8700 1.2 2.1 57 3.6 3.4 106
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Basin wide percent of average 65 94
BIGHORN BASIN
BALD MTN. 9380 5.3 4.5 118 5.0 3.9 128
BEAR TRAP MEADOW 8200 .9 1.1 82 2.6 2.7 96
BLACKWATER 9780 5.8 5.2 112 5.9 4.7 126
BONE SPRINGS DIV 9350 5.6 4.2 133 5.5 3.8 145
EVENING STAR 9200 4.4 5.2 85 7.7 5.3 145
GRAVE SPRINGS 8550 .9 2.0 45 3.1 2.9 107
KIRWIN 9550 3.2 3.0 107 4.5 3.1 145
MARQUETTE 8760 .7 -M * 4.5 3.3 136
MIDDLE POWDER 7760 1.6 2.5 64 5.0 3.9 128
OWL CREEK 8975 1.2 1.5 80 2.0 1.8 111
POWDER RIVER PASS 9480 3.2 2.4 133 4.4 3.0 147
SHELL CREEK 9580 5.8 4.0 145 5.3 3.3 161
SYLVAN LAKE 8420 2.6 4.0 65 6.6 4.6 143
SYLVAN ROAD 7120 1.6 1.8 89 4.1 4.2 98
TIMBER CREEK 7950 .7 1.9 37 4.3 2.5 172
YOUNTS PEAK 8350 2.9 2.8 104 4.3 3.4 126
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Basin wide percent of average 99 133
SHOSHONE RIVER
BLACKWATER 9780 5.8 5.2 112 5.9 4.7 126
EVENING STAR 9200 4.4 5.2 85 7.7 5.3 145
KIRWIN 9550 3.2 3.0 107 4.5 3.1 145
MARQUETTE 8760 .7 -M * 4.5 3.3 136
SYLVAN LAKE 8420 2.6 4.0 65 6.6 4.6 143
SYLVAN ROAD 7120 1.6 1.8 89 4.1 4.2 98
YOUNTS PEAK 8350 2.9 2.8 104 4.3 3.4 126
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Basin wide percent of average 93 131
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 1.1 82 2.6 2.7 96
BIG GOOSE 7990 2.6 1.5 173 6.2 2.6 238
BONE SPRINGS DIV 9350 5.6 4.2 133 5.5 3.8 145
BURGESS JUNCTION 7880 2.8 2.7 104 5.6 3.3 170
CLOUD PEAK RESERVOIR 9860 3.9 2.7 144 5.8 3.9 149
DOME LAKE 8880 3.6 3.2 113 6.8 3.8 179
GRAVE SPRINGS 8550 .9 2.0 45 3.1 2.9 107
HANSEN SAWMILL 8360 1.3 1.3 100 3.3 2.7 122
LITTLE GOOSE 8870 3.3 -M * 6.8 -M *
MIDDLE POWDER 7760 1.6 2.5 64 5.0 3.9 128
POWDER RIVER PASS 9480 3.2 2.4 133 4.4 3.0 147
SOLDIER PARK 8720 1.1 -M * 4.2 -M *
SUCKER CREEK 8880 4.7 2.4 196 5.8 3.6 161
TIE CREEK 6870 1.0 1.2 83 6.1 3.2 191
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Basin wide percent of average 118 153
BELLE FOURCHE
BLIND PARK 6890 .9 1.5 60 1.9 3.7 51
COLE CANYON 5910 .1 1.5 7 1.8 2.5 72
NORTH RAPID CREEK 6130 1.3 1.0 130 1.1 3.3 33
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Basin wide percent of average 58 51
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 5.6 -M * 7.4 -M *
CINNABAR PARK 9574 2.9 3.5 83 5.5 4.6 120
COLUMBINE 9160 2.9 2.8 104 5.3 4.2 126
DIVIDE PEAK 8880 3.4 3.3 103 6.6 4.4 150
ELK RIVER 8700 2.3 1.6 144* 4.3 3.6 119
JOE WRIGHT 10120 2.5 4.6 54 6.7 5.6 120
NORTH FRENCH CREEK 10130 4.3 5.4 80 5.4 5.5 98
OLD BATTLE 10000 6.3 5.9 107 8.1 6.2 131
SAGE CREEK BASIN 7850 2.0 1.9 105 3.8 2.6 146
SOUTH BRUSH CREEK 8440 1.4 1.7 82 3.9 4.0 98
TOWER 10500 5.9 8.0 74 8.3 7.2 115
WEBBER SPRINGS 9250 4.1 4.1 100 7.1 5.3 134
WILLOW CREEK PASS 9540 2.6 2.4 108 3.7 3.2 116
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Basin wide percent of average 90 122
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.6 4.0 65 4.9 4.3 114
CASPER MTN. 7900 2.8 3.2 88 6.6 4.0 165
DEADMAN HILL 10220 5.3 3.7 143 5.4 3.9 138
DEER PARK 9700 2.2 3.7 59 4.8 5.0 96
LAPRELE CREEK 8375 1.5 2.1 71 3.9 3.2 122
RENO HILL 8400 3.1 3.0 103 4.8 3.9 123
ROACH 9700 3.6 2.7 133 5.7 3.8 150
SAND LAKE 10050 5.6 6.2 90 6.2 5.1 122
SOUTH PASS 9040 2.3 3.2 72 3.7 4.0 93
WINDY PEAK 7900 1.4 1.4 100 3.1 2.8 111
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Basin wide percent of average 92 123
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 2.8 1.2 233 4.0 3.2 125
DIVIDE PEAK 8880 3.4 3.3 103 6.6 4.4 150
OLD BATTLE 10000 6.3 5.9 107 8.1 6.2 131
SANDSTONE RS 8150 1.4 1.3 108* 3.6 3.9 92
WHISKEY PARK 8950 3.1 3.8 82 6.6 5.2 127
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Basin wide percent of average 110 126
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.3 2.5 92 3.4 3.0 113
BLIND BULL SUM 8650 2.3 4.1 56 3.4 4.1 83
EAST RIM DIVIDE 7930 .9 1.8 50 2.8 2.4 117
ELKHART PARK G.S. 9400 1.9 2.1 90 3.8 3.2 119
GROS VENTRE SUMMIT 8750 1.4 2.5 56 2.9 3.0 97
GUNSIGHT PASS 9820 1.9 -M * 3.7 -M *
KENDALL R.S. 7740 1.8 1.8 100 3.7 2.8 132
LOOMIS PARK 8240 1.5 2.5 60 3.9 3.3 118
NEW FORK LAKE 8340 2.0 1.5 133 3.5 2.7 130
POCKET CREEK 9360 2.4 -M * 3.4 -M *
SNIDER BASIN 8060 1.3 2.0 65 2.6 3.0 87
SPRING CREEK DIVIDE 9000 3.2 3.8 84 5.0 4.8 104
TRIPLE PEAK 8500 2.8 3.5 80 5.0 4.2 119
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Basin wide percent of average 76 110
LOWER GREEN RIVER
HAMS FORK 7840 .9 1.3 69 3.2 2.4 133
HEWINTA 9519 .8 1.5 53 4.2 3.7 114
HICKERSON PARK 9145 .7 1.0 70 5.0 2.6 192
HOLE-IN-ROCK 9150 1.0 1.0 100 4.5 2.4 188
INDIAN CREEK 9425 3.4 3.8 89 4.3 4.6 93
KELLEY R.S. 8180 2.1 2.4 88 4.4 3.8 116
STEEL CREEK PARK 10200 2.0 2.8 71 4.8 3.8 126
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Basin wide percent of average 79 130
UPPER BEAR RIVER
BUG LAKE 7950 1.9 2.5 76 4.5 3.9 115
HAYDEN FORK 9212 1.9 1.8 106 5.9 4.2 140
KELLEY R.S. 8180 2.1 2.4 88 4.4 3.8 116
LILY LAKE 9156 1.1 1.9 58 4.2 4.1 102
MONTE CRISTO 8960 3.1 3.1 100 4.9 4.8 102
SALT RIVER SUMMIT 7760 1.4 1.3 108* 3.2 3.3 97
TRIAL LAKE 9992 3.6 3.6 100 4.3 4.7 91
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Basin wide percent of average 91 109
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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.