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 THURSDAY: OCTOBER 27 , 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 .0 .4 0* 3.5 1.7 206
COTTONWOOD CREEK 7670 .2 .7 29* 4.6 2.5 184
GRAND TARGHEE 9260 2.8 -M * 5.1 -M *
GRANITE CREEK 6770 .0 .3 0* 2.4 1.5 160
GRASSY LAKE 7265 .0 1.0 0* 5.1 2.8 182
GROS VENTRE SUMMIT 8750 .4 1.2 33* 1.9 1.6 119
GUNSIGHT PASS 9820 .6 -M * 2.2 -M *
LEWIS LAKE DIVIDE 7850 .2 .8 25* 4.4 2.6 169
PHILLIPS BENCH 8200 .0 1.1 0* 2.5 1.9 132
SALT RIVER SUMMIT 7760 .0 .2 0* 2.1 1.6 131
SNAKE RIVER STATION 6920 .0 .4 0* 3.8 1.9 200
SPRING CREEK DIVIDE 9000 1.3 1.1 118* 3.2 2.1 152
THUMB DIVIDE 7980 .0 .6 0* 2.8 1.8 156
TOGWOTEE PASS 9580 1.2 2.1 57* 3.1 2.4 129
TWO OCEAN PLATEAU 9240 4.0 2.5 160* 3.6 2.6 138
WILLOW CREEK 8380 .0 1.4 0* 5.3 3.1 171
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Basin wide percent of average 53* 160
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.1 2.3 91* 2.8 1.8 156
BLACK BEAR 8170 1.3 2.2 59* 5.2 2.8 186
CANYON 7870 .1 .5 20* 2.0 1.5 133
FISHER CREEK 9100 2.0 2.2 91* 4.2 2.7 156
MADISON PLATEAU 7750 .0 1.3 0* 3.8 2.1 181
NORTHEAST ENTRANCE 7350 .0 .2 0* 2.0 1.3 154
PARKER PEAK 9400 1.2 2.2 55* 3.3 2.0 165
SYLVAN LAKE 8420 .1 1.5 7* 3.9 2.2 177
THUMB DIVIDE 7980 .0 .6 0* 2.8 1.8 156
TWO OCEAN PLATEAU 9240 4.0 2.5 160* 3.6 2.6 138
WHISKEY CREEK 6800 .0 .6 0* 3.2 1.8 178
WHITE MILL 8700 1.1 1.6 69* 3.3 2.3 143
WOLVERINE 7650 .6 .3 200* 2.8 1.6 175
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Basin wide percent of average 69* 162
WIND RIVER
BURROUGHS CREEK 8750 .1 .7 14* 1.3 1.4 93
CASTLE CREEK 8400 .2 -M * 1.1 -M *
COLD SPRINGS 9630 .3 .9 33 1.7 1.6 106
DEER PARK 9700 1.0 1.8 56* 2.4 2.1 114
HOBBS PARK 10100 1.7 2.0 85 2.4 1.8 133
LITTLE WARM 9370 .0 .9 0* 1.3 1.5 87
SOUTH PASS 9040 .2 1.3 15* 2.0 1.7 118
ST. LAWRENCE ALT 8620 .0 .7 0* 1.2 1.5 80
TOGWOTEE PASS 9580 1.2 2.1 57* 3.1 2.4 129
TOWNSEND CREEK 8700 .0 1.0 0 2.5 1.8 139
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Basin wide percent of average 39* 113
BIGHORN BASIN
BALD MTN. 9380 3.4 2.4 142 3.5 2.1 167
BEAR TRAP MEADOW 8200 .3 .5 60* 1.7 1.5 113
BLACKWATER 9780 3.2 2.7 119* 3.6 2.3 157
BONE SPRINGS DIV 9350 3.5 2.2 159 4.1 2.2 186
EVENING STAR 9200 1.3 2.1 62* 4.0 2.3 174
GRAVE SPRINGS 8550 .3 1.1 27* 2.1 1.8 117
KIRWIN 9550 1.7 1.6 106 2.9 1.5 193
MARQUETTE 8760 .2 -M * 3.4 2.0 170
MIDDLE POWDER 7760 .2 1.2 17* 3.9 2.3 170
OWL CREEK 8975 .6 .8 75 1.4 1.0 140
POWDER RIVER PASS 9480 2.0 1.0 200* 3.0 1.7 176
SHELL CREEK 9580 4.0 2.4 167 3.9 1.7 229
SYLVAN LAKE 8420 .1 1.5 7* 3.9 2.2 177
SYLVAN ROAD 7120 .0 .3 0* 2.0 1.7 118
TIMBER CREEK 7950 .1 .9 11 3.6 1.4 257
YOUNTS PEAK 8350 .2 1.2 17* 2.5 1.6 156
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Basin wide percent of average 95* 169
SHOSHONE RIVER
BLACKWATER 9780 3.2 2.7 119* 3.6 2.3 157
EVENING STAR 9200 1.3 2.1 62* 4.0 2.3 174
KIRWIN 9550 1.7 1.6 106 2.9 1.5 193
MARQUETTE 8760 .2 -M * 3.4 2.0 170
SYLVAN LAKE 8420 .1 1.5 7* 3.9 2.2 177
SYLVAN ROAD 7120 .0 .3 0* 2.0 1.7 118
YOUNTS PEAK 8350 .2 1.2 17* 2.5 1.6 156
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Basin wide percent of average 69* 164
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .3 .5 60* 1.7 1.5 113
BIG GOOSE 7990 1.1 .7 157* 4.3 1.9 226
BONE SPRINGS DIV 9350 3.5 2.2 159 4.1 2.2 186
BURGESS JUNCTION 7880 1.3 1.2 108* 4.1 1.9 216
CLOUD PEAK RESERVOIR 9860 1.9 1.4 136* 3.6 2.3 157
DOME LAKE 8880 2.1 1.6 131 4.6 2.2 209
GRAVE SPRINGS 8550 .3 1.1 27* 2.1 1.8 117
HANSEN SAWMILL 8360 .0 .8 0 1.9 1.6 119
LITTLE GOOSE 8870 1.5 -M * 4.8 -M *
MIDDLE POWDER 7760 .2 1.2 17* 3.9 2.3 170
POWDER RIVER PASS 9480 2.0 1.0 200* 3.0 1.7 176
SOLDIER PARK 8720 .0 -M * 2.6 -M *
SUCKER CREEK 8880 2.6 1.1 236* 4.1 2.1 195
TIE CREEK 6870 .0 .9 0 4.5 2.2 205
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Basin wide percent of average 112* 177
BELLE FOURCHE
BLIND PARK 6890 .2 .4 50* 1.1 2.2 50
COLE CANYON 5910 .0 .8 0 1.3 1.6 81
NORTH RAPID CREEK 6130 .1 .4 25* .5 2.2 23
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Basin wide percent of average 19* 48
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 1.9 -M * 3.6 -M *
CINNABAR PARK 9574 1.0 1.2 83* 3.2 2.1 152
COLUMBINE 9160 .2 .5 40* 2.5 2.0 125
DIVIDE PEAK 8880 .1 1.5 7* 2.9 2.3 126
ELK RIVER 8700 .0 .4 0* 2.3 1.9 121
JOE WRIGHT 10120 .3 2.0 15* 3.5 2.9 121
NORTH FRENCH CREEK 10130 2.4 2.6 92* 3.8 2.8 136
OLD BATTLE 10000 2.1 2.4 88* 3.4 3.0 113
SAGE CREEK BASIN 7850 .0 .9 0* 2.0 1.4 143
SOUTH BRUSH CREEK 8440 .4 .5 80* 2.7 2.3 117
TOWER 10500 1.7 2.7 63* 3.4 3.3 103
WEBBER SPRINGS 9250 .3 1.4 21* 3.1 2.6 119
WILLOW CREEK PASS 9540 1.9 .9 211* 2.1 1.7 124
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Basin wide percent of average 61* 123
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .5 1.8 28* 3.1 2.0 155
CASPER MTN. 7900 1.1 1.4 79* 5.1 2.2 232
DEADMAN HILL 10220 2.0 1.9 105* 3.1 2.1 148
DEER PARK 9700 1.0 1.8 56* 2.4 2.1 114
LAPRELE CREEK 8375 .0 .8 0* 2.1 1.6 131
RENO HILL 8400 1.2 1.5 80* 3.1 2.2 141
ROACH 9700 1.2 .9 133* 3.0 2.0 150
SAND LAKE 10050 2.9 2.7 107* 4.0 2.6 154
SOUTH PASS 9040 .2 1.3 15* 2.0 1.7 118
WINDY PEAK 7900 .0 .4 0* 1.5 1.5 100
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Basin wide percent of average 70* 147
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .4 0* 1.4 1.6 88
DIVIDE PEAK 8880 .1 1.5 7* 2.9 2.3 126
OLD BATTLE 10000 2.1 2.4 88* 3.4 3.0 113
SANDSTONE RS 8150 .0 .4 0* 1.6 2.0 80
WHISKEY PARK 8950 .2 1.3 15* 3.1 2.5 124
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Basin wide percent of average 40* 109
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .8 1.0 80* 1.7 1.5 113
BLIND BULL SUM 8650 .4 1.2 33* 2.1 1.8 117
EAST RIM DIVIDE 7930 .2 .4 50* 2.0 1.1 182
ELKHART PARK G.S. 9400 .6 .7 86* 2.6 1.7 153
GROS VENTRE SUMMIT 8750 .4 1.2 33* 1.9 1.6 119
GUNSIGHT PASS 9820 .6 -M * 2.2 -M *
KENDALL R.S. 7740 .0 .5 0* 2.0 1.3 154
LOOMIS PARK 8240 .0 .7 0* 2.5 1.5 167
NEW FORK LAKE 8340 .1 .4 25* 2.4 1.3 185
POCKET CREEK 9360 1.5 -M * 2.6 -M *
SNIDER BASIN 8060 .0 .5 0* 1.5 1.3 115
SPRING CREEK DIVIDE 9000 1.3 1.1 118* 3.2 2.1 152
TRIPLE PEAK 8500 .6 .9 67* 2.9 1.8 161
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Basin wide percent of average 51* 146
LOWER GREEN RIVER
HAMS FORK 7840 .0 .3 0* 2.6 1.2 217
HEWINTA 9519 .0 .7 0* 2.8 2.0 140
HICKERSON PARK 9145 .0 .3 0* 3.1 1.5 207
HOLE-IN-ROCK 9150 .4 .4 100* 3.0 1.4 214
INDIAN CREEK 9425 1.3 1.1 118* 2.9 2.1 138
KELLEY R.S. 8180 .1 .7 14* 2.7 1.8 150
STEEL CREEK PARK 10200 -M 1.4 * 3.5 2.0 175
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Basin wide percent of average 51* 172
UPPER BEAR RIVER
BUG LAKE 7950 .0 1.0 0* 1.5 2.0 75
HAYDEN FORK 9212 .2 .7 29* 4.1 2.0 205
KELLEY R.S. 8180 .1 .7 14* 2.7 1.8 150
LILY LAKE 9156 .0 .8 0* 2.9 2.1 138
MONTE CRISTO 8960 .1 1.3 8* 2.4 2.4 100
SALT RIVER SUMMIT 7760 .0 .2 0* 2.1 1.6 131
TRIAL LAKE 9992 .7 1.6 44* 2.5 2.3 109
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Basin wide percent of average 17* 128
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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.