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 FRIDAY: OCTOBER 28 , 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 .5 0* 3.5 1.8 194
COTTONWOOD CREEK 7670 .3 .7 43* 4.6 2.6 177
GRAND TARGHEE 9260 2.9 -M * 5.1 -M *
GRANITE CREEK 6770 .1 .4 25* 2.4 1.5 160
GRASSY LAKE 7265 .1 1.1 9* 5.1 2.9 176
GROS VENTRE SUMMIT 8750 .4 1.2 33* 2.0 1.6 125
GUNSIGHT PASS 9820 .6 -M * 2.3 -M *
LEWIS LAKE DIVIDE 7850 .1 .9 11* 4.3 2.7 159
PHILLIPS BENCH 8200 .0 1.1 0* 2.5 2.0 125
SALT RIVER SUMMIT 7760 .1 .3 33* 2.1 1.7 124
SNAKE RIVER STATION 6920 .0 .4 0* 3.8 2.0 190
SPRING CREEK DIVIDE 9000 1.2 1.2 100* 3.2 2.2 145
THUMB DIVIDE 7980 .0 .6 0* 2.8 1.8 156
TOGWOTEE PASS 9580 1.3 2.2 59* 3.2 2.5 128
TWO OCEAN PLATEAU 9240 4.2 2.6 162* 3.6 2.7 133
WILLOW CREEK 8380 .0 1.5 0* 5.3 3.3 161
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Basin wide percent of average 53* 155
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.1 2.4 88* 2.8 1.9 147
BLACK BEAR 8170 1.3 2.3 57* 5.2 3.0 173
CANYON 7870 .2 .5 40* 2.0 1.6 125
FISHER CREEK 9100 2.0 2.2 91* 4.2 2.9 145
MADISON PLATEAU 7750 .0 1.4 0* 3.8 2.2 173
NORTHEAST ENTRANCE 7350 .0 .2 0* 2.0 1.4 143
PARKER PEAK 9400 1.4 2.3 61* 3.6 2.1 171
SYLVAN LAKE 8420 .0 1.6 0* 3.9 2.3 170
THUMB DIVIDE 7980 .0 .6 0* 2.8 1.8 156
TWO OCEAN PLATEAU 9240 4.2 2.6 162* 3.6 2.7 133
WHISKEY CREEK 6800 .0 .6 0* 3.2 1.9 168
WHITE MILL 8700 1.1 1.6 69* 3.4 2.4 142
WOLVERINE 7650 .5 .3 167* 2.8 1.6 175
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Basin wide percent of average 69* 156
WIND RIVER
BURROUGHS CREEK 8750 .0 .8 0* 1.4 1.4 100
CASTLE CREEK 8400 .0 -M * 1.2 -M *
COLD SPRINGS 9630 .4 .9 44 1.7 1.7 100
DEER PARK 9700 1.1 1.8 61* 2.7 2.2 123
HOBBS PARK 10100 1.8 2.1 86 2.5 1.9 132
LITTLE WARM 9370 .0 .9 0* 1.7 1.5 113
SOUTH PASS 9040 .2 1.3 15* 2.2 1.8 122
ST. LAWRENCE ALT 8620 .0 .8 0 1.3 1.5 87
TOGWOTEE PASS 9580 1.3 2.2 59* 3.2 2.5 128
TOWNSEND CREEK 8700 .2 1.0 20 2.5 1.9 132
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Basin wide percent of average 42* 117
BIGHORN BASIN
BALD MTN. 9380 3.4 2.4 142 3.6 2.2 164
BEAR TRAP MEADOW 8200 .4 .5 80* 1.8 1.6 113
BLACKWATER 9780 3.2 2.8 114* 3.6 2.4 150
BONE SPRINGS DIV 9350 3.5 2.3 152 4.1 2.3 178
EVENING STAR 9200 1.4 2.2 64* 4.1 2.4 171
GRAVE SPRINGS 8550 .0 1.1 0* 2.1 1.9 111
KIRWIN 9550 1.7 1.7 100 2.9 1.6 181
MARQUETTE 8760 .2 -M * 3.4 2.1 162
MIDDLE POWDER 7760 .3 1.2 25* 4.0 2.4 167
OWL CREEK 8975 .0 .8 0 1.4 1.0 140
POWDER RIVER PASS 9480 2.0 1.1 182* 3.2 1.8 178
SHELL CREEK 9580 4.1 2.5 164 3.9 1.8 217
SYLVAN LAKE 8420 .0 1.6 0* 3.9 2.3 170
SYLVAN ROAD 7120 .0 .4 0* 2.1 1.8 117
TIMBER CREEK 7950 .2 1.0 20 3.7 1.4 264
YOUNTS PEAK 8350 .4 1.2 33* 2.6 1.6 163
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Basin wide percent of average 90* 165
SHOSHONE RIVER
BLACKWATER 9780 3.2 2.8 114* 3.6 2.4 150
EVENING STAR 9200 1.4 2.2 64* 4.1 2.4 171
KIRWIN 9550 1.7 1.7 100 2.9 1.6 181
MARQUETTE 8760 .2 -M * 3.4 2.1 162
SYLVAN LAKE 8420 .0 1.6 0* 3.9 2.3 170
SYLVAN ROAD 7120 .0 .4 0* 2.1 1.8 117
YOUNTS PEAK 8350 .4 1.2 33* 2.6 1.6 163
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Basin wide percent of average 68* 159
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 .5 80* 1.8 1.6 113
BIG GOOSE 7990 1.1 .7 157* 4.3 2.0 215
BONE SPRINGS DIV 9350 3.5 2.3 152 4.1 2.3 178
BURGESS JUNCTION 7880 1.3 1.3 100* 4.2 2.0 210
CLOUD PEAK RESERVOIR 9860 1.9 1.4 136* 4.0 2.4 167
DOME LAKE 8880 2.2 1.6 138 4.6 2.3 200
GRAVE SPRINGS 8550 .0 1.1 0* 2.1 1.9 111
HANSEN SAWMILL 8360 .2 .8 25 1.9 1.7 112
LITTLE GOOSE 8870 1.5 -M * 4.9 -M *
MIDDLE POWDER 7760 .3 1.2 25* 4.0 2.4 167
POWDER RIVER PASS 9480 2.0 1.1 182* 3.2 1.8 178
SOLDIER PARK 8720 .0 -M * 2.6 -M *
SUCKER CREEK 8880 2.6 1.2 217* 4.3 2.2 195
TIE CREEK 6870 .0 .8 0 4.5 2.3 196
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Basin wide percent of average 111* 173
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* 1.1 2.3 48
COLE CANYON 5910 .0 .8 0 1.3 1.7 76
NORTH RAPID CREEK 6130 .0 .4 0* .6 2.3 26
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Basin wide percent of average 0* 48
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 2.0 -M * 3.7 -M *
CINNABAR PARK 9574 1.0 1.3 77* 3.2 2.2 145
COLUMBINE 9160 .2 .6 33* 2.6 2.1 124
DIVIDE PEAK 8880 .2 1.5 13* 2.9 2.4 121
ELK RIVER 8700 .3 .5 60* 2.3 2.0 115
JOE WRIGHT 10120 .3 2.2 14* 3.6 3.0 120
NORTH FRENCH CREEK 10130 2.4 2.8 86* 3.9 2.9 134
OLD BATTLE 10000 2.2 2.6 85* 3.5 3.1 113
SAGE CREEK BASIN 7850 .0 .9 0* 2.0 1.4 143
SOUTH BRUSH CREEK 8440 .3 .6 50* 2.7 2.4 113
TOWER 10500 1.9 2.9 66* 3.5 3.4 103
WEBBER SPRINGS 9250 .3 1.5 20* 3.2 2.7 119
WILLOW CREEK PASS 9540 1.7 1.0 170* 2.1 1.8 117
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Basin wide percent of average 59* 121
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .7 1.9 37* 3.2 2.1 152
CASPER MTN. 7900 1.2 1.5 80* 5.1 2.2 232
DEADMAN HILL 10220 2.3 1.9 121* 3.1 2.2 141
DEER PARK 9700 1.1 1.8 61* 2.7 2.2 123
LAPRELE CREEK 8375 .0 .8 0* 2.1 1.7 124
RENO HILL 8400 1.1 1.5 73* 3.1 2.3 135
ROACH 9700 1.3 .9 144* 3.1 2.1 148
SAND LAKE 10050 2.9 2.8 104* 3.8 2.7 141
SOUTH PASS 9040 .2 1.3 15* 2.2 1.8 122
WINDY PEAK 7900 .0 .5 0* 1.5 1.5 100
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Basin wide percent of average 72* 144
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .4 0* 1.5 1.7 88
DIVIDE PEAK 8880 .2 1.5 13* 2.9 2.4 121
OLD BATTLE 10000 2.2 2.6 85* 3.5 3.1 113
SANDSTONE RS 8150 .0 .4 0* 1.6 2.1 76
WHISKEY PARK 8950 .2 1.4 14* 3.2 2.6 123
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Basin wide percent of average 41* 107
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .8 1.0 80* 1.8 1.6 113
BLIND BULL SUM 8650 .6 1.3 46* 2.0 1.9 105
EAST RIM DIVIDE 7930 .3 .5 60* 2.1 1.2 175
ELKHART PARK G.S. 9400 .6 .7 86* 2.7 1.8 150
GROS VENTRE SUMMIT 8750 .4 1.2 33* 2.0 1.6 125
GUNSIGHT PASS 9820 .6 -M * 2.3 -M *
KENDALL R.S. 7740 .0 .5 0* 2.0 1.4 143
LOOMIS PARK 8240 .0 .7 0* 2.5 1.6 156
NEW FORK LAKE 8340 .3 .4 75* 2.4 1.4 171
POCKET CREEK 9360 1.6 -M * 2.6 -M *
SNIDER BASIN 8060 .1 .6 17* 1.6 1.4 114
SPRING CREEK DIVIDE 9000 1.2 1.2 100* 3.2 2.2 145
TRIPLE PEAK 8500 .8 .9 89* 2.9 1.9 153
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Basin wide percent of average 57* 140
LOWER GREEN RIVER
HAMS FORK 7840 .0 .3 0* 2.6 1.2 217
HEWINTA 9519 .0 .8 0* 2.8 2.1 133
HICKERSON PARK 9145 -M .4 * 3.3 1.5 220
HOLE-IN-ROCK 9150 .3 .4 75* 3.1 1.5 207
INDIAN CREEK 9425 1.2 1.2 100* 2.9 2.2 132
KELLEY R.S. 8180 .2 .8 25* 2.7 1.9 142
STEEL CREEK PARK 10200 .2 1.4 14* 3.5 2.1 167
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Basin wide percent of average 39* 167
UPPER BEAR RIVER
BUG LAKE 7950 .0 1.1 0* 1.6 2.1 76
HAYDEN FORK 9212 .2 .8 25* 4.1 2.1 195
KELLEY R.S. 8180 .2 .8 25* 2.7 1.9 142
LILY LAKE 9156 .0 .9 0* 2.9 2.1 138
MONTE CRISTO 8960 .3 1.4 21* 2.4 2.5 96
SALT RIVER SUMMIT 7760 .1 .3 33* 2.1 1.7 124
TRIAL LAKE 9992 .9 1.7 53* 2.5 2.4 104
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Basin wide percent of average 24* 124
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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.