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 SATURDAY: OCTOBER 29 , 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 .5 20* 3.4 1.9 179
COTTONWOOD CREEK 7670 .3 .8 38* 4.6 2.8 164
GRAND TARGHEE 9260 2.7 -M * 5.3 -M *
GRANITE CREEK 6770 .1 .4 25* 2.5 1.6 156
GRASSY LAKE 7265 .4 1.2 33* 5.2 3.0 173
GROS VENTRE SUMMIT 8750 .4 1.3 31* 2.3 1.7 135
GUNSIGHT PASS 9820 .7 -M * 2.5 -M *
LEWIS LAKE DIVIDE 7850 .2 1.0 20* 4.4 2.8 157
PHILLIPS BENCH 8200 .0 1.2 0* 2.6 2.1 124
SALT RIVER SUMMIT 7760 .2 .3 67* 2.2 1.8 122
SNAKE RIVER STATION 6920 .1 .5 20* 3.8 2.1 181
SPRING CREEK DIVIDE 9000 1.2 1.3 92* 3.3 2.3 143
THUMB DIVIDE 7980 .1 .7 14* 2.8 1.9 147
TOGWOTEE PASS 9580 1.4 2.3 61* 3.2 2.6 123
TWO OCEAN PLATEAU 9240 4.3 2.8 154* 3.8 2.8 136
WILLOW CREEK 8380 .1 1.6 6* 5.3 3.4 156
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Basin wide percent of average 56* 151
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.3 2.5 92* 3.0 1.9 158
BLACK BEAR 8170 1.7 2.5 68* 5.4 3.1 174
CANYON 7870 .1 .6 17* 2.1 1.7 124
FISHER CREEK 9100 2.0 2.4 83* 4.4 3.0 147
MADISON PLATEAU 7750 .1 1.5 7* 3.9 2.3 170
NORTHEAST ENTRANCE 7350 .0 .2 0* 2.0 1.4 143
PARKER PEAK 9400 1.3 2.4 54* 3.4 2.2 155
SYLVAN LAKE 8420 .2 1.7 12* 3.9 2.4 163
THUMB DIVIDE 7980 .1 .7 14* 2.8 1.9 147
TWO OCEAN PLATEAU 9240 4.3 2.8 154* 3.8 2.8 136
WHISKEY CREEK 6800 .1 .7 14* 3.2 2.0 160
WHITE MILL 8700 1.0 1.7 59* 3.6 2.5 144
WOLVERINE 7650 .4 .4 100* 2.9 1.7 171
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Basin wide percent of average 68* 154
WIND RIVER
BURROUGHS CREEK 8750 .2 .8 25* 1.5 1.5 100
CASTLE CREEK 8400 .2 -M * 1.1 -M *
COLD SPRINGS 9630 .5 1.0 50 1.9 1.8 106
DEER PARK 9700 1.0 1.9 53* 2.7 2.3 117
HOBBS PARK 10100 1.9 2.1 90 2.6 2.0 130
LITTLE WARM 9370 .0 .9 0* 1.6 1.6 100
SOUTH PASS 9040 .6 1.4 43* 2.3 1.9 121
ST. LAWRENCE ALT 8620 .2 .9 22 1.3 1.6 81
TOGWOTEE PASS 9580 1.4 2.3 61* 3.2 2.6 123
TOWNSEND CREEK 8700 .4 1.1 36 2.8 2.0 140
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Basin wide percent of average 50* 115
BIGHORN BASIN
BALD MTN. 9380 3.5 2.6 135 3.7 2.3 161
BEAR TRAP MEADOW 8200 .4 .5 80* 1.9 1.6 119
BLACKWATER 9780 3.3 2.9 114* 3.8 2.5 152
BONE SPRINGS DIV 9350 3.5 2.4 146 4.3 2.3 187
EVENING STAR 9200 1.5 2.4 63* 4.2 2.6 162
GRAVE SPRINGS 8550 .4 1.1 36* 2.1 2.0 105
KIRWIN 9550 1.8 1.8 100 3.1 1.7 182
MARQUETTE 8760 .3 -M * 3.5 2.2 159
MIDDLE POWDER 7760 .3 1.3 23* 4.1 2.4 171
OWL CREEK 8975 .7 .8 88 1.6 1.1 145
POWDER RIVER PASS 9480 2.0 1.1 182* 3.2 1.8 178
SHELL CREEK 9580 4.1 2.6 158 3.9 1.9 205
SYLVAN LAKE 8420 .2 1.7 12* 3.9 2.4 163
SYLVAN ROAD 7120 .0 .4 0* 2.2 1.9 116
TIMBER CREEK 7950 .3 1.1 27 3.7 1.5 247
YOUNTS PEAK 8350 .7 1.3 54* 3.0 1.7 176
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Basin wide percent of average 95* 164
SHOSHONE RIVER
BLACKWATER 9780 3.3 2.9 114* 3.8 2.5 152
EVENING STAR 9200 1.5 2.4 63* 4.2 2.6 162
KIRWIN 9550 1.8 1.8 100 3.1 1.7 182
MARQUETTE 8760 .3 -M * 3.5 2.2 159
SYLVAN LAKE 8420 .2 1.7 12* 3.9 2.4 163
SYLVAN ROAD 7120 .0 .4 0* 2.2 1.9 116
YOUNTS PEAK 8350 .7 1.3 54* 3.0 1.7 176
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Basin wide percent of average 71* 158
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 .5 80* 1.9 1.6 119
BIG GOOSE 7990 1.3 .8 163* 4.5 2.0 225
BONE SPRINGS DIV 9350 3.5 2.4 146 4.3 2.3 187
BURGESS JUNCTION 7880 1.3 1.5 87 4.4 2.1 210
CLOUD PEAK RESERVOIR 9860 2.0 1.5 133* 3.9 2.5 156
DOME LAKE 8880 2.2 1.8 122 4.7 2.4 196
GRAVE SPRINGS 8550 .4 1.1 36* 2.1 2.0 105
HANSEN SAWMILL 8360 .3 .8 38 2.0 1.7 118
LITTLE GOOSE 8870 1.6 -M * 5.0 -M *
MIDDLE POWDER 7760 .3 1.3 23* 4.1 2.4 171
POWDER RIVER PASS 9480 2.0 1.1 182* 3.2 1.8 178
SOLDIER PARK 8720 .2 -M * 2.8 -M *
SUCKER CREEK 8880 2.8 1.4 200 4.4 2.3 191
TIE CREEK 6870 .1 .8 13 4.6 2.4 192
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Basin wide percent of average 111* 173
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* 1.1 2.4 46
COLE CANYON 5910 .0 .8 0 1.4 1.7 82
NORTH RAPID CREEK 6130 .3 .4 75* .6 2.4 25
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Basin wide percent of average 19* 48
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 2.3 -M * 3.7 -M *
CINNABAR PARK 9574 1.1 1.4 79* 3.3 2.3 143
COLUMBINE 9160 .3 .6 50* 2.6 2.2 118
DIVIDE PEAK 8880 .3 1.6 19* 3.0 2.5 120
ELK RIVER 8700 .2 .5 40* 2.4 2.0 120
JOE WRIGHT 10120 .4 2.3 17* 3.7 3.2 116
NORTH FRENCH CREEK 10130 2.5 2.9 86* 3.9 3.1 126
OLD BATTLE 10000 2.2 2.7 81* 3.6 3.3 109
SAGE CREEK BASIN 7850 .0 .9 0* 2.0 1.5 133
SOUTH BRUSH CREEK 8440 .4 .6 67* 2.8 2.5 112
TOWER 10500 2.0 3.1 65* 3.6 3.6 100
WEBBER SPRINGS 9250 .4 1.6 25* 3.3 2.8 118
WILLOW CREEK PASS 9540 1.8 1.0 180* 2.2 1.9 116
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Basin wide percent of average 60* 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .8 2.0 40* 3.2 2.2 145
CASPER MTN. 7900 1.2 1.6 75* 5.1 2.3 222
DEADMAN HILL 10220 2.5 2.0 125 3.2 2.3 139
DEER PARK 9700 1.0 1.9 53* 2.7 2.3 117
LAPRELE CREEK 8375 .0 .9 0* 2.2 1.7 129
RENO HILL 8400 1.2 1.6 75 3.3 2.3 143
ROACH 9700 1.4 1.0 140* 3.2 2.2 145
SAND LAKE 10050 3.0 3.0 100* 3.9 2.8 139
SOUTH PASS 9040 .6 1.4 43* 2.3 1.9 121
WINDY PEAK 7900 .1 .5 20* 1.5 1.6 94
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Basin wide percent of average 74* 142
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .5 0* 1.6 1.8 89
DIVIDE PEAK 8880 .3 1.6 19* 3.0 2.5 120
OLD BATTLE 10000 2.2 2.7 81* 3.6 3.3 109
SANDSTONE RS 8150 .0 .4 0* 1.6 2.2 73
WHISKEY PARK 8950 .3 1.5 20* 3.2 2.7 119
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Basin wide percent of average 42* 104
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .9 1.1 82* 1.9 1.7 112
BLIND BULL SUM 8650 .6 1.4 43* 2.1 2.0 105
EAST RIM DIVIDE 7930 .3 .5 60* 2.1 1.3 162
ELKHART PARK G.S. 9400 .7 .8 88* 2.7 1.8 150
GROS VENTRE SUMMIT 8750 .4 1.3 31* 2.3 1.7 135
GUNSIGHT PASS 9820 .7 -M * 2.5 -M *
KENDALL R.S. 7740 .2 .6 33* 2.2 1.4 157
LOOMIS PARK 8240 .1 .8 13* 2.5 1.7 147
NEW FORK LAKE 8340 .5 .5 100* 2.6 1.4 186
POCKET CREEK 9360 1.6 -M * 2.6 -M *
SNIDER BASIN 8060 .2 .6 33* 1.6 1.4 114
SPRING CREEK DIVIDE 9000 1.2 1.3 92* 3.3 2.3 143
TRIPLE PEAK 8500 .9 1.0 90* 3.0 2.0 150
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Basin wide percent of average 61* 141
LOWER GREEN RIVER
HAMS FORK 7840 .1 .4 25* 2.6 1.3 200
HEWINTA 9519 -M .8 * 2.9 2.2 132
HICKERSON PARK 9145 .0 .4 0* 3.5 1.6 219
HOLE-IN-ROCK 9150 .2 .4 50* 3.1 1.6 194
INDIAN CREEK 9425 1.4 1.3 108* 3.1 2.3 135
KELLEY R.S. 8180 .3 .8 38* 2.8 2.0 140
STEEL CREEK PARK 10200 .0 1.5 0* 3.5 2.1 167
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Basin wide percent of average 42* 164
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.1 27* 1.6 2.2 73
HAYDEN FORK 9212 .3 .8 38* 4.1 2.2 186
KELLEY R.S. 8180 .3 .8 38* 2.8 2.0 140
LILY LAKE 9156 .0 .9 0* 2.8 2.2 127
MONTE CRISTO 8960 .3 1.4 21* 2.5 2.6 96
SALT RIVER SUMMIT 7760 .2 .3 67* 2.2 1.8 122
TRIAL LAKE 9992 1.1 1.8 61* 2.5 2.5 100
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Basin wide percent of average 35* 119
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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.