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 1 , 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 .1 .7 14* 3.5 2.1 167
COTTONWOOD CREEK 7670 .3 1.0 30* 4.8 3.1 155
GRAND TARGHEE 9260 3.2 -M * 5.5 -M *
GRANITE CREEK 6770 .1 .6 17* 2.5 1.8 139
GRASSY LAKE 7265 .4 1.5 27* 5.4 3.5 154
GROS VENTRE SUMMIT 8750 .4 1.4 29* 2.4 1.9 126
GUNSIGHT PASS 9820 .7 -M * 2.6 -M *
LEWIS LAKE DIVIDE 7850 .4 1.3 31* 4.7 3.3 142
PHILLIPS BENCH 8200 .0 1.5 0* 2.6 2.5 104
SALT RIVER SUMMIT 7760 .3 .4 75* 2.4 2.0 120
SNAKE RIVER STATION 6920 .2 .6 33* 3.9 2.3 170
SPRING CREEK DIVIDE 9000 1.5 1.6 94* 3.5 2.7 130
THUMB DIVIDE 7980 .4 .9 44* 3.2 2.1 152
TOGWOTEE PASS 9580 1.6 2.7 59* 3.4 2.9 117
TWO OCEAN PLATEAU 9240 4.4 3.2 138 4.1 3.2 128
WILLOW CREEK 8380 .2 1.9 11* 5.3 3.8 139
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Basin wide percent of average 53* 139
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.9 2.7 107 3.5 2.2 159
BLACK BEAR 8170 2.5 2.9 86* 5.7 3.6 158
CANYON 7870 .7 .7 100* 2.3 1.9 121
FISHER CREEK 9100 2.6 2.8 93* 5.1 3.4 150
MADISON PLATEAU 7750 .7 1.7 41* 4.6 2.6 177
NORTHEAST ENTRANCE 7350 .0 .3 0* 2.3 1.6 144
PARKER PEAK 9400 2.5 2.6 96 4.5 2.4 188
SYLVAN LAKE 8420 .7 2.0 35* 4.4 2.7 163
THUMB DIVIDE 7980 .4 .9 44* 3.2 2.1 152
TWO OCEAN PLATEAU 9240 4.4 3.2 138 4.1 3.2 128
WHISKEY CREEK 6800 .6 .8 75* 3.7 2.3 161
WHITE MILL 8700 1.4 2.1 67* 3.9 2.8 139
WOLVERINE 7650 .7 .5 140* 3.4 1.9 179
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Basin wide percent of average 87* 155
WIND RIVER
BURROUGHS CREEK 8750 .0 1.0 0* 1.6 1.7 94
CASTLE CREEK 8400 .0 -M * 1.3 -M *
COLD SPRINGS 9630 .6 1.1 55 2.0 2.0 100
DEER PARK 9700 .9 2.7 33 2.8 2.6 108
HOBBS PARK 10100 2.2 2.3 96 2.8 2.2 127
LITTLE WARM 9370 .0 1.1 0* 1.8 1.8 100
SOUTH PASS 9040 .6 1.6 38* 2.3 2.2 105
ST. LAWRENCE ALT 8620 .0 .9 0 1.4 1.8 78
TOGWOTEE PASS 9580 1.6 2.7 59* 3.4 2.9 117
TOWNSEND CREEK 8700 .0 1.1 0 2.8 2.2 127
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Basin wide percent of average 41 108
BIGHORN BASIN
BALD MTN. 9380 3.6 2.8 129 3.8 2.5 152
BEAR TRAP MEADOW 8200 .0 .6 0 2.0 1.8 111
BLACKWATER 9780 3.5 3.2 109 4.0 2.8 143
BONE SPRINGS DIV 9350 3.8 2.7 141 4.5 2.6 173
EVENING STAR 9200 2.3 2.8 82* 5.1 2.9 176
GRAVE SPRINGS 8550 .0 1.2 0 2.2 2.2 100
KIRWIN 9550 1.9 1.9 100 3.1 1.9 163
MARQUETTE 8760 .1 -M * 3.7 2.4 154
MIDDLE POWDER 7760 .3 1.3 23* 4.2 2.7 156
OWL CREEK 8975 .0 .9 0 1.7 1.2 142
POWDER RIVER PASS 9480 2.1 1.3 162 3.3 2.0 165
SHELL CREEK 9580 4.3 2.7 159 3.9 2.1 186
SYLVAN LAKE 8420 .7 2.0 35* 4.4 2.7 163
SYLVAN ROAD 7120 .2 .5 40* 2.3 2.2 105
TIMBER CREEK 7950 .0 1.1 0 3.8 1.7 224
YOUNTS PEAK 8350 .8 1.4 57* 2.7 1.9 142
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Basin wide percent of average 89 154
SHOSHONE RIVER
BLACKWATER 9780 3.5 3.2 109 4.0 2.8 143
EVENING STAR 9200 2.3 2.8 82* 5.1 2.9 176
KIRWIN 9550 1.9 1.9 100 3.1 1.9 163
MARQUETTE 8760 .1 -M * 3.7 2.4 154
SYLVAN LAKE 8420 .7 2.0 35* 4.4 2.7 163
SYLVAN ROAD 7120 .2 .5 40* 2.3 2.2 105
YOUNTS PEAK 8350 .8 1.4 57* 2.7 1.9 142
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Basin wide percent of average 80* 151
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .6 0 2.0 1.8 111
BIG GOOSE 7990 1.8 .9 200* 4.9 2.2 223
BONE SPRINGS DIV 9350 3.8 2.7 141 4.5 2.6 173
BURGESS JUNCTION 7880 1.7 1.6 106 4.8 2.3 209
CLOUD PEAK RESERVOIR 9860 2.3 1.6 144* 4.3 2.7 159
DOME LAKE 8880 2.9 1.9 153 5.3 2.6 204
GRAVE SPRINGS 8550 .0 1.2 0 2.2 2.2 100
HANSEN SAWMILL 8360 .5 .9 56 2.3 1.9 121
LITTLE GOOSE 8870 2.2 -M * 5.6 -M *
MIDDLE POWDER 7760 .3 1.3 23* 4.2 2.7 156
POWDER RIVER PASS 9480 2.1 1.3 162 3.3 2.0 165
SOLDIER PARK 8720 .2 -M * 3.0 -M *
SUCKER CREEK 8880 3.1 1.4 221 4.7 2.5 188
TIE CREEK 6870 .3 .9 33 5.0 2.6 192
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Basin wide percent of average 115 169
BELLE FOURCHE
BLIND PARK 6890 .0 .6 0* 1.2 2.7 44
COLE CANYON 5910 .0 1.0 0 1.4 1.9 74
NORTH RAPID CREEK 6130 .0 .5 0* .8 2.6 31
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Basin wide percent of average 0* 47
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 2.3 -M * 3.9 -M *
CINNABAR PARK 9574 1.1 1.7 65* 3.4 2.6 131
COLUMBINE 9160 .2 .9 22* 3.0 2.5 120
DIVIDE PEAK 8880 .3 1.8 17* 3.1 2.8 111
ELK RIVER 8700 .1 .7 14* 2.5 2.3 109
JOE WRIGHT 10120 .6 2.7 22 3.7 3.5 106
NORTH FRENCH CREEK 10130 2.6 3.3 79* 4.0 3.5 114
OLD BATTLE 10000 2.3 3.2 72* 3.8 3.7 103
SAGE CREEK BASIN 7850 .1 1.0 10* 2.0 1.6 125
SOUTH BRUSH CREEK 8440 .4 .8 50* 3.0 2.7 111
TOWER 10500 2.1 3.7 57* 3.8 4.1 93
WEBBER SPRINGS 9250 .5 2.0 25* 3.3 3.2 103
WILLOW CREEK PASS 9540 1.8 1.2 150* 2.2 2.1 105
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Basin wide percent of average 53* 109
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .9 2.3 39* 3.2 2.6 123
CASPER MTN. 7900 1.1 1.8 61 5.0 2.6 192
DEADMAN HILL 10220 2.7 2.3 117 3.3 2.6 127
DEER PARK 9700 .9 2.7 33 2.8 2.6 108
LAPRELE CREEK 8375 .1 1.1 9 2.3 2.0 115
RENO HILL 8400 1.2 1.8 67 3.3 2.6 127
ROACH 9700 1.4 1.3 108* 3.2 2.4 133
SAND LAKE 10050 3.1 3.4 91* 4.1 3.2 128
SOUTH PASS 9040 .6 1.6 38* 2.3 2.2 105
WINDY PEAK 7900 .1 .6 17* 1.5 1.8 83
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Basin wide percent of average 64 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .6 17* 1.7 2.0 85
DIVIDE PEAK 8880 .3 1.8 17* 3.1 2.8 111
OLD BATTLE 10000 2.3 3.2 72* 3.8 3.7 103
SANDSTONE RS 8150 .0 .6 0* 1.6 2.4 67
WHISKEY PARK 8950 .2 1.8 11* 3.3 3.0 110
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Basin wide percent of average 36* 97
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.0 1.3 77* 2.1 1.9 111
BLIND BULL SUM 8650 .8 1.8 44* 2.1 2.3 91
EAST RIM DIVIDE 7930 .3 .7 43* 2.2 1.4 157
ELKHART PARK G.S. 9400 .9 .9 100* 2.8 2.0 140
GROS VENTRE SUMMIT 8750 .4 1.4 29* 2.4 1.9 126
GUNSIGHT PASS 9820 .7 -M * 2.6 -M *
KENDALL R.S. 7740 .3 .7 43* 2.3 1.6 144
LOOMIS PARK 8240 .1 1.0 10* 2.6 1.9 137
NEW FORK LAKE 8340 .7 .6 117* 2.6 1.6 163
POCKET CREEK 9360 1.9 -M * 2.7 -M *
SNIDER BASIN 8060 .3 .8 38* 1.8 1.7 106
SPRING CREEK DIVIDE 9000 1.5 1.6 94* 3.5 2.7 130
TRIPLE PEAK 8500 1.1 1.3 85* 3.2 2.3 139
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Basin wide percent of average 61* 130
LOWER GREEN RIVER
HAMS FORK 7840 .2 .5 40* 2.7 1.5 180
HEWINTA 9519 .0 .9 0* 2.9 2.5 116
HICKERSON PARK 9145 .0 .5 0* 3.6 1.8 200
HOLE-IN-ROCK 9150 .7 .5 140* 3.2 1.7 188
INDIAN CREEK 9425 1.8 1.6 113* 3.5 2.7 130
KELLEY R.S. 8180 .6 1.0 60* 3.1 2.2 141
STEEL CREEK PARK 10200 .2 1.7 12* 3.5 2.4 146
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Basin wide percent of average 52* 152
UPPER BEAR RIVER
BUG LAKE 7950 .7 1.3 54* 1.8 2.4 75
HAYDEN FORK 9212 .2 .9 22* 4.1 2.5 164
KELLEY R.S. 8180 .6 1.0 60* 3.1 2.2 141
LILY LAKE 9156 .2 1.0 20* 2.8 2.5 112
MONTE CRISTO 8960 .5 1.7 29* 2.6 2.9 90
SALT RIVER SUMMIT 7760 .3 .4 75* 2.4 2.0 120
TRIAL LAKE 9992 1.3 2.0 65* 2.5 2.9 86
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Basin wide percent of average 46* 111
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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.