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: OCTOBER 25 , 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 .3 33* 3.2 1.5 213
COTTONWOOD CREEK 7670 .2 .6 33* 4.5 2.3 196
GRAND TARGHEE 9260 2.5 -M * 5.0 -M *
GRANITE CREEK 6770 .1 .3 33* 2.4 1.3 185
GRASSY LAKE 7265 .1 .9 11* 5.2 2.5 208
GROS VENTRE SUMMIT 8750 .4 1.0 40* 2.2 1.4 157
GUNSIGHT PASS 9820 .8 -M * 2.5 -M *
LEWIS LAKE DIVIDE 7850 .2 .7 29* 4.4 2.3 191
PHILLIPS BENCH 8200 .0 .9 0* 2.5 1.7 147
SALT RIVER SUMMIT 7760 .1 .2 50* 2.2 1.5 147
SNAKE RIVER STATION 6920 .1 .3 33* 3.7 1.7 218
SPRING CREEK DIVIDE 9000 1.3 1.0 130* 3.3 1.8 183
THUMB DIVIDE 7980 .1 .5 20* 2.8 1.6 175
TOGWOTEE PASS 9580 1.5 1.9 79* 3.0 2.1 143
TWO OCEAN PLATEAU 9240 3.4 2.3 148* 3.8 2.3 165
WILLOW CREEK 8380 .2 1.2 17* 5.2 2.9 179
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Basin wide percent of average 64* 180
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.0 2.1 95* 2.8 1.6 175
BLACK BEAR 8170 2.0 1.8 111* 5.3 2.5 212
CANYON 7870 .2 .4 50* 1.7 1.4 121
FISHER CREEK 9100 2.1 1.9 111* 4.2 2.5 168
MADISON PLATEAU 7750 .0 1.0 0* 3.8 2.0 190
NORTHEAST ENTRANCE 7350 .0 .2 0* 2.0 1.2 167
PARKER PEAK 9400 1.3 2.2 59* 3.4 1.9 179
SYLVAN LAKE 8420 .0 1.4 0* 3.9 2.0 195
THUMB DIVIDE 7980 .1 .5 20* 2.8 1.6 175
TWO OCEAN PLATEAU 9240 3.4 2.3 148* 3.8 2.3 165
WHISKEY CREEK 6800 .1 .4 25* 3.3 1.7 194
WHITE MILL 8700 1.1 1.3 85* 3.4 2.1 162
WOLVERINE 7650 .8 .3 267* 2.5 1.5 167
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Basin wide percent of average 83* 177
WIND RIVER
BURROUGHS CREEK 8750 .0 .6 0* 1.4 1.3 108
CASTLE CREEK 8400 .0 -M * 1.2 -M *
COLD SPRINGS 9630 .0 .8 0* 1.6 1.5 107
DEER PARK 9700 .8 1.7 47* 2.4 2.0 120
HOBBS PARK 10100 1.6 1.9 84 2.4 1.7 141
LITTLE WARM 9370 .0 .8 0* 1.7 1.4 121
SOUTH PASS 9040 .5 1.2 42* 2.2 1.6 138
ST. LAWRENCE ALT 8620 .0 .7 0* 1.1 1.4 79
TOGWOTEE PASS 9580 1.5 1.9 79* 3.0 2.1 143
TOWNSEND CREEK 8700 .0 .8 0* 2.4 1.7 141
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Basin wide percent of average 42* 124
BIGHORN BASIN
BALD MTN. 9380 3.3 2.2 150* 3.5 1.9 184
BEAR TRAP MEADOW 8200 .0 .5 0* 1.8 1.4 129
BLACKWATER 9780 3.0 2.5 120* 3.4 2.1 162
BONE SPRINGS DIV 9350 3.4 2.0 170 4.1 2.0 205
EVENING STAR 9200 1.4 2.0 70* 3.9 2.1 186
GRAVE SPRINGS 8550 .0 .9 0* 1.9 1.7 112
KIRWIN 9550 1.5 1.5 100 2.8 1.4 200
MARQUETTE 8760 .0 -M * 3.2 1.9 168
MIDDLE POWDER 7760 .0 1.0 0* 4.1 2.1 195
OWL CREEK 8975 .0 .7 0 1.5 .9 167
POWDER RIVER PASS 9480 1.7 .9 189* 2.8 1.6 175
SHELL CREEK 9580 3.9 2.2 177 3.5 1.6 219
SYLVAN LAKE 8420 .0 1.4 0* 3.9 2.0 195
SYLVAN ROAD 7120 .0 .3 0* 2.0 1.5 133
TIMBER CREEK 7950 .0 .8 0 3.5 1.3 269
YOUNTS PEAK 8350 .0 1.1 0* 2.5 1.5 167
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Basin wide percent of average 91* 179
SHOSHONE RIVER
BLACKWATER 9780 3.0 2.5 120* 3.4 2.1 162
EVENING STAR 9200 1.4 2.0 70* 3.9 2.1 186
KIRWIN 9550 1.5 1.5 100 2.8 1.4 200
MARQUETTE 8760 .0 -M * 3.2 1.9 168
SYLVAN LAKE 8420 .0 1.4 0* 3.9 2.0 195
SYLVAN ROAD 7120 .0 .3 0* 2.0 1.5 133
YOUNTS PEAK 8350 .0 1.1 0* 2.5 1.5 167
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Basin wide percent of average 67* 174
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .5 0* 1.8 1.4 129
BIG GOOSE 7990 1.2 .6 200* 4.2 1.8 233
BONE SPRINGS DIV 9350 3.4 2.0 170 4.1 2.0 205
BURGESS JUNCTION 7880 1.2 1.2 100* 4.1 1.8 228
CLOUD PEAK RESERVOIR 9860 1.7 1.3 131* 3.7 2.1 176
DOME LAKE 8880 2.1 1.4 150 4.4 2.0 220
GRAVE SPRINGS 8550 .0 .9 0* 1.9 1.7 112
HANSEN SAWMILL 8360 .0 .6 0* 1.6 1.5 107
LITTLE GOOSE 8870 1.3 -M * 4.6 -M *
MIDDLE POWDER 7760 .0 1.0 0* 4.1 2.1 195
POWDER RIVER PASS 9480 1.7 .9 189* 2.8 1.6 175
SOLDIER PARK 8720 .0 -M * 2.4 -M *
SUCKER CREEK 8880 2.5 1.0 250* 4.1 2.0 205
TIE CREEK 6870 .1 .6 17* 4.4 2.1 210
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Basin wide percent of average 116* 186
BELLE FOURCHE
BLIND PARK 6890 .0 .2 0* 1.0 2.1 48
COLE CANYON 5910 .0 .6 0* 1.3 1.5 87
NORTH RAPID CREEK 6130 .0 .3 0* .6 2.0 30
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Basin wide percent of average 0* 52
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 1.7 -M * 3.3 -M *
CINNABAR PARK 9574 .4 .9 44* 2.4 1.8 133
COLUMBINE 9160 .1 .4 25* 2.3 1.8 128
DIVIDE PEAK 8880 .1 1.3 8* 2.5 2.1 119
ELK RIVER 8700 .0 .4 0* 2.1 1.7 124
JOE WRIGHT 10120 .0 1.8 0* 2.3 2.7 85
NORTH FRENCH CREEK 10130 1.8 2.4 75* 3.2 2.5 128
OLD BATTLE 10000 1.7 2.2 77* 3.1 2.7 115
SAGE CREEK BASIN 7850 .1 .8 13* 1.7 1.2 142
SOUTH BRUSH CREEK 8440 .1 .4 25* 2.4 2.1 114
TOWER 10500 .9 2.3 39* 2.9 2.9 100
WEBBER SPRINGS 9250 .1 1.2 8* 2.7 2.3 117
WILLOW CREEK PASS 9540 1.8 .8 225* 1.2 1.6 75
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Basin wide percent of average 48* 113
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 1.6 13* 2.5 1.8 139
CASPER MTN. 7900 1.1 1.3 85* 4.8 2.0 240
DEADMAN HILL 10220 1.0 1.7 59* 2.0 2.0 100
DEER PARK 9700 .8 1.7 47* 2.4 2.0 120
LAPRELE CREEK 8375 .0 .7 0* 1.9 1.5 127
RENO HILL 8400 1.3 1.3 100* 3.2 2.0 160
ROACH 9700 .5 .7 71* 2.2 1.8 122
SAND LAKE 10050 2.3 2.4 96* 3.0 2.3 130
SOUTH PASS 9040 .5 1.2 42* 2.2 1.6 138
WINDY PEAK 7900 .0 .3 0* 1.2 1.3 92
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Basin wide percent of average 60* 139
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .3 0* 1.5 1.5 100
DIVIDE PEAK 8880 .1 1.3 8* 2.5 2.1 119
OLD BATTLE 10000 1.7 2.2 77* 3.1 2.7 115
SANDSTONE RS 8150 .0 .3 0* 1.4 1.8 78
WHISKEY PARK 8950 .1 1.2 8* 2.8 2.3 122
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Basin wide percent of average 36* 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.0 .9 111* 2.0 1.4 143
BLIND BULL SUM 8650 .5 1.1 45* 2.1 1.6 131
EAST RIM DIVIDE 7930 .3 .3 100* 2.2 1.0 220
ELKHART PARK G.S. 9400 .8 .6 133* 2.6 1.5 173
GROS VENTRE SUMMIT 8750 .4 1.0 40* 2.2 1.4 157
GUNSIGHT PASS 9820 .8 -M * 2.5 -M *
KENDALL R.S. 7740 .1 .4 25* 2.2 1.2 183
LOOMIS PARK 8240 .2 .6 33* 2.5 1.4 179
NEW FORK LAKE 8340 .1 .3 33* 2.6 1.2 217
POCKET CREEK 9360 1.5 -M * 2.6 -M *
SNIDER BASIN 8060 .1 .5 20* 1.7 1.2 142
SPRING CREEK DIVIDE 9000 1.3 1.0 130* 3.3 1.8 183
TRIPLE PEAK 8500 .3 .7 43* 3.0 1.7 176
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Basin wide percent of average 69* 171
LOWER GREEN RIVER
HAMS FORK 7840 .2 .2 100* 2.6 1.1 236
HEWINTA 9519 .0 .7 0* 2.7 1.9 142
HICKERSON PARK 9145 -M .3 * -M 1.3 *
HOLE-IN-ROCK 9150 .6 .3 200* 2.9 1.3 223
INDIAN CREEK 9425 1.7 1.0 170* 3.3 1.9 174
KELLEY R.S. 8180 .2 .6 33* 3.0 1.6 188
STEEL CREEK PARK 10200 1.6 1.3 123* 3.2 1.8 178
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Basin wide percent of average 105* 184
UPPER BEAR RIVER
BUG LAKE 7950 .1 .9 11* 1.5 1.8 83
HAYDEN FORK 9212 .1 .6 17* 3.9 1.9 205
KELLEY R.S. 8180 .2 .6 33* 3.0 1.6 188
LILY LAKE 9156 .1 .8 13* 2.7 1.9 142
MONTE CRISTO 8960 .0 1.2 0* 2.3 2.2 105
SALT RIVER SUMMIT 7760 .1 .2 50* 2.2 1.5 147
TRIAL LAKE 9992 .6 1.4 43* 2.3 2.1 110
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Basin wide percent of average 21* 138
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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.