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 MONDAY: NOVEMBER 7 , 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 .8 1.1 73* 4.2 2.7 156
COTTONWOOD CREEK 7670 .5 1.5 33* 5.1 4.0 128
GRAND TARGHEE 9260 3.9 -M * 6.6 -M *
GRANITE CREEK 6770 .3 .9 33* 2.7 2.4 113
GRASSY LAKE 7265 1.8 2.4 75* 6.1 4.4 139
GROS VENTRE SUMMIT 8750 .7 1.8 39 2.5 2.3 109
GUNSIGHT PASS 9820 1.1 -M * 2.9 -M *
LEWIS LAKE DIVIDE 7850 .9 2.2 41* 5.2 4.3 121
PHILLIPS BENCH 8200 .0 2.2 0* 2.7 3.2 84
SALT RIVER SUMMIT 7760 .5 .7 71* 2.3 2.5 92
SNAKE RIVER STATION 6920 .5 1.1 45* 4.4 3.0 147
SPRING CREEK DIVIDE 9000 1.6 2.3 70* 3.6 3.4 106
THUMB DIVIDE 7980 .4 1.3 31* 3.3 2.6 127
TOGWOTEE PASS 9580 2.0 3.4 59 4.0 3.6 111
TWO OCEAN PLATEAU 9240 5.2 4.1 127 4.6 4.0 115
WILLOW CREEK 8380 .7 2.8 25* 5.9 4.7 126
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Basin wide percent of average 57* 120
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.8 3.6 106 4.3 2.8 154
BLACK BEAR 8170 3.6 3.8 95* 6.7 4.8 140
CANYON 7870 .9 1.1 82* 2.8 2.4 117
FISHER CREEK 9100 3.3 3.9 85 5.8 4.5 129
MADISON PLATEAU 7750 1.3 2.3 57* 5.2 3.3 158
NORTHEAST ENTRANCE 7350 .4 .6 67* 2.6 2.0 130
PARKER PEAK 9400 3.3 3.4 97 5.3 2.9 183
SYLVAN LAKE 8420 1.6 2.8 57 5.5 3.4 162
THUMB DIVIDE 7980 .4 1.3 31* 3.3 2.6 127
TWO OCEAN PLATEAU 9240 5.2 4.1 127 4.6 4.0 115
WHISKEY CREEK 6800 .9 1.2 75* 4.3 2.9 148
WHITE MILL 8700 1.9 2.8 68 4.4 3.5 126
WOLVERINE 7650 1.1 .9 122* 3.8 2.3 165
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Basin wide percent of average 87* 142
WIND RIVER
BURROUGHS CREEK 8750 .7 1.5 47* 1.7 2.2 77
CASTLE CREEK 8400 .7 -M * 1.6 -M *
COLD SPRINGS 9630 .9 1.5 60 2.1 2.5 84
DEER PARK 9700 1.5 3.2 47 3.4 3.5 97
HOBBS PARK 10100 2.8 2.8 100 3.1 2.7 115
LITTLE WARM 9370 .2 1.5 13 1.9 2.3 83
SOUTH PASS 9040 1.1 2.2 50 2.7 2.9 93
ST. LAWRENCE ALT 8620 .2 1.3 15 1.6 2.2 73
TOGWOTEE PASS 9580 2.0 3.4 59 4.0 3.6 111
TOWNSEND CREEK 8700 .8 1.5 53 3.3 2.7 122
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Basin wide percent of average 54 97
BIGHORN BASIN
BALD MTN. 9380 4.7 3.5 134 4.6 3.0 153
BEAR TRAP MEADOW 8200 .3 .8 38 2.1 2.2 95
BLACKWATER 9780 4.4 3.9 113 4.6 3.5 131
BONE SPRINGS DIV 9350 4.8 3.3 145 5.1 3.1 165
EVENING STAR 9200 3.1 3.8 82 6.1 3.8 161
GRAVE SPRINGS 8550 .5 1.6 31 2.7 2.4 113
KIRWIN 9550 2.4 2.5 96 3.6 2.4 150
MARQUETTE 8760 .7 -M * 4.0 2.8 143
MIDDLE POWDER 7760 1.1 1.8 61 4.6 3.2 144
OWL CREEK 8975 1.0 1.1 91 1.7 1.5 113
POWDER RIVER PASS 9480 2.4 1.7 141 3.6 2.4 150
SHELL CREEK 9580 5.1 3.3 155 4.7 2.6 181
SYLVAN LAKE 8420 1.6 2.8 57 5.5 3.4 162
SYLVAN ROAD 7120 .8 1.0 80* 3.1 2.8 111
TIMBER CREEK 7950 .6 1.5 40 4.1 2.0 205
YOUNTS PEAK 8350 1.2 2.1 57 2.9 2.5 116
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Basin wide percent of average 98 144
SHOSHONE RIVER
BLACKWATER 9780 4.4 3.9 113 4.6 3.5 131
EVENING STAR 9200 3.1 3.8 82 6.1 3.8 161
KIRWIN 9550 2.4 2.5 96 3.6 2.4 150
MARQUETTE 8760 .7 -M * 4.0 2.8 143
SYLVAN LAKE 8420 1.6 2.8 57 5.5 3.4 162
SYLVAN ROAD 7120 .8 1.0 80* 3.1 2.8 111
YOUNTS PEAK 8350 1.2 2.1 57 2.9 2.5 116
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Basin wide percent of average 84 141
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .3 .8 38 2.1 2.2 95
BIG GOOSE 7990 2.2 1.1 200* 5.7 2.4 238
BONE SPRINGS DIV 9350 4.8 3.3 145 5.1 3.1 165
BURGESS JUNCTION 7880 2.3 2.1 110 5.1 2.7 189
CLOUD PEAK RESERVOIR 9860 2.8 2.1 133 4.6 3.2 144
DOME LAKE 8880 3.4 2.5 136 6.2 3.1 200
GRAVE SPRINGS 8550 .5 1.6 31 2.7 2.4 113
HANSEN SAWMILL 8360 .9 1.2 75 2.7 2.2 123
LITTLE GOOSE 8870 2.7 -M * 6.3 -M *
MIDDLE POWDER 7760 1.1 1.8 61 4.6 3.2 144
POWDER RIVER PASS 9480 2.4 1.7 141 3.6 2.4 150
SOLDIER PARK 8720 .2 -M * 3.6 -M *
SUCKER CREEK 8880 3.9 1.8 217 5.2 2.9 179
TIE CREEK 6870 .9 1.1 82 5.7 2.9 197
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Basin wide percent of average 121 163
BELLE FOURCHE
BLIND PARK 6890 .3 1.2 25 1.4 3.1 45
COLE CANYON 5910 .0 1.2 0 1.5 2.1 71
NORTH RAPID CREEK 6130 .6 .7 86* .8 2.9 28
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Basin wide percent of average 29 46
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 3.1 -M * 4.7 -M *
CINNABAR PARK 9574 1.6 2.3 70 4.1 3.4 121
COLUMBINE 9160 1.1 1.6 69* 3.6 3.1 116
DIVIDE PEAK 8880 2.0 2.4 83 4.9 3.4 144
ELK RIVER 8700 .6 1.0 60* 2.9 2.8 104
JOE WRIGHT 10120 1.5 3.5 43 5.2 4.3 121
NORTH FRENCH CREEK 10130 3.1 4.1 76 4.4 4.3 102
OLD BATTLE 10000 3.5 4.2 83 4.9 4.6 107
SAGE CREEK BASIN 7850 1.0 1.4 71 2.8 2.0 140
SOUTH BRUSH CREEK 8440 .7 1.1 64* 3.3 3.2 103
TOWER 10500 3.9 5.3 74 5.0 5.3 94
WEBBER SPRINGS 9250 1.5 2.8 54 4.5 4.0 113
WILLOW CREEK PASS 9540 1.3 1.7 76 2.8 2.5 112
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Basin wide percent of average 69 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.2 2.9 41 3.7 3.2 116
CASPER MTN. 7900 2.6 2.4 108 6.4 3.2 200
DEADMAN HILL 10220 3.6 2.9 124 4.4 3.1 142
DEER PARK 9700 1.5 3.2 47 3.4 3.5 97
LAPRELE CREEK 8375 1.4 1.5 93 3.8 2.5 152
RENO HILL 8400 3.1 2.2 141 4.9 3.2 153
ROACH 9700 2.4 1.8 133* 4.2 2.9 145
SAND LAKE 10050 4.2 4.5 93 5.0 3.9 128
SOUTH PASS 9040 1.1 2.2 50 2.7 2.9 93
WINDY PEAK 7900 1.4 .9 156 2.9 2.2 132
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Basin wide percent of average 92 135
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.0 .8 125* 2.6 2.4 108
DIVIDE PEAK 8880 2.0 2.4 83 4.9 3.4 144
OLD BATTLE 10000 3.5 4.2 83 4.9 4.6 107
SANDSTONE RS 8150 .1 .8 13* 2.6 3.0 87
WHISKEY PARK 8950 1.1 2.5 44* 4.3 3.8 113
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Basin wide percent of average 72* 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.3 1.7 76 2.4 2.3 104
BLIND BULL SUM 8650 .8 2.6 31* 2.3 2.9 79
EAST RIM DIVIDE 7930 .6 1.0 60* 2.2 1.8 122
ELKHART PARK G.S. 9400 1.2 1.3 92* 3.2 2.5 128
GROS VENTRE SUMMIT 8750 .7 1.8 39 2.5 2.3 109
GUNSIGHT PASS 9820 1.1 -M * 2.9 -M *
KENDALL R.S. 7740 .6 1.1 55* 2.5 2.1 119
LOOMIS PARK 8240 .3 1.5 20* 2.7 2.4 113
NEW FORK LAKE 8340 1.1 .9 122* 2.8 2.0 140
POCKET CREEK 9360 2.0 -M * 3.1 -M *
SNIDER BASIN 8060 .2 1.2 17* 1.6 2.2 73
SPRING CREEK DIVIDE 9000 1.6 2.3 70* 3.6 3.4 106
TRIPLE PEAK 8500 1.1 2.0 55* 3.2 3.0 107
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Basin wide percent of average 55* 108
LOWER GREEN RIVER
HAMS FORK 7840 .2 .7 29* 2.6 1.8 144
HEWINTA 9519 .0 1.1 0* 3.6 2.9 124
HICKERSON PARK 9145 1.1 .7 157* 4.8 2.1 229
HOLE-IN-ROCK 9150 1.2 .7 171* 4.4 2.0 220
INDIAN CREEK 9425 1.8 2.4 75* 3.4 3.4 100
KELLEY R.S. 8180 .8 1.5 53* 3.1 2.8 111
STEEL CREEK PARK 10200 1.3 2.1 62 4.3 3.0 143
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Basin wide percent of average 70* 146
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.7 18* 2.7 3.0 90
HAYDEN FORK 9212 .7 1.2 58* 4.8 3.1 155
KELLEY R.S. 8180 .8 1.5 53* 3.1 2.8 111
LILY LAKE 9156 .4 1.3 31* 3.5 3.1 113
MONTE CRISTO 8960 1.1 2.2 50* 3.3 3.6 92
SALT RIVER SUMMIT 7760 .5 .7 71* 2.3 2.5 92
TRIAL LAKE 9992 2.0 2.6 77* 2.9 3.5 83
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Basin wide percent of average 52* 105
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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.