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 14 , 2008
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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 .5 .1 500 1.5 .8 188
COTTONWOOD CREEK 7670 .2 .0 1.2 1.1 109
GRAND TARGHEE 9260 1.0 -M * 2.8 -M *
GRANITE CREEK 6770 .6 .1 600 1.5 .7 214
GRASSY LAKE 7265 .9 .2 450 1.8 1.3 138
GROS VENTRE SUMMIT 8750 1.3 .5 260 1.7 .8 212
GUNSIGHT PASS 9820 .5 -M * .9 -M *
LEWIS LAKE DIVIDE 7850 .5 .0 1.7 1.1 155
PHILLIPS BENCH 8200 .8 .2 400 1.3 .9 144
SALT RIVER SUMMIT 7760 .0 .0 100 .9 .7 129
SNAKE RIVER STATION 6920 .3 .0 1.1 .9 122
SPRING CREEK DIVIDE 9000 .7 .3 233 1.0 .9 111
THUMB DIVIDE 7980 .7 .1 700 2.0 .8 250
TOGWOTEE PASS 9580 1.2 .9 133 1.8 1.1 164
TWO OCEAN PLATEAU 9240 1.1 1.1 100 1.3 1.2 108
WILLOW CREEK 8380 .8 .4 200 1.8 1.5 120
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Basin wide percent of average 221 149
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .9 1.2 75 .9 .8 112
BLACK BEAR 8170 1.1 .7 157 3.0 1.2 250
CANYON 7870 .5 .2 250 .6 .7 86
FISHER CREEK 9100 .9 .9 100 1.6 1.2 133
MADISON PLATEAU 7750 .7 .4 175 1.6 1.0 160
NORTHEAST ENTRANCE 7350 .5 .0 .8 .6 133
PARKER PEAK 9400 1.3 1.1 118 1.3 1.0 130
SYLVAN LAKE 8420 .5 .7 71 1.4 1.0 140
THUMB DIVIDE 7980 .7 .1 700 2.0 .8 250
TWO OCEAN PLATEAU 9240 1.1 1.1 100 1.3 1.2 108
WHISKEY CREEK 6800 .3 .1 300 1.2 .8 150
WHITE MILL 8700 .8 .7 114 1.1 1.1 100
WOLVERINE 7650 1.1 .1 1100 .9 .8 112
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Basin wide percent of average 136 145
WIND RIVER
BURROUGHS CREEK 8750 1.6 .3 533 2.0 .7 286
COLD SPRINGS 9630 1.7 .2 850 2.1 .7 300
DEER PARK 9700 1.3 .8 162 2.4 .9 267
HOBBS PARK 10100 2.1 .7 300 2.3 .9 256
LITTLE WARM 9370 1.3 .3 433 1.6 .7 229
SOUTH PASS 9040 1.6 .4 400 2.8 .8 350
ST. LAWRENCE ALT 8620 1.9 .1 1900 2.2 .7 314
TOGWOTEE PASS 9580 1.2 .9 133 1.8 1.1 164
TOWNSEND CREEK 8700 1.9 .3 633 2.7 .9 300
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Basin wide percent of average 365 269
BIGHORN BASIN
BALD MTN. 9380 1.7 1.5 113 2.2 1.1 200
BEAR TRAP MEADOW 8200 .8 .2 400 1.6 .8 200
BLACKWATER 9780 1.1 1.4 79 1.4 1.1 127
BONE SPRINGS DIV 9350 1.4 1.2 117 1.8 1.1 164
EVENING STAR 9200 1.1 1.1 100 1.7 1.1 155
GRAVE SPRINGS 8550 1.1 .2 550 1.7 1.0 170
KIRWIN 9550 1.3 .8 162 1.3 .7 186
MARQUETTE 8760 1.8 .8 225 1.9 1.0 190
MIDDLE POWDER 7760 1.2 .5 240 1.8 1.1 164
OWL CREEK 8975 1.7 .3 567 1.7 .5 340
POWDER RIVER PASS 9480 .9 .5 180 1.6 .9 178
SHELL CREEK 9580 1.9 1.5 127 2.4 .9 267
SYLVAN LAKE 8420 .5 .7 71 1.4 1.0 140
SYLVAN ROAD 7120 .4 .0 1.0 .7 143
TIMBER CREEK 7950 1.5 .1 1500 2.1 .7 300
YOUNTS PEAK 8350 .9 .5 180 1.2 .8 150
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Basin wide percent of average 167 185
SHOSHONE RIVER
BLACKWATER 9780 1.1 1.4 79 1.4 1.1 127
EVENING STAR 9200 1.1 1.1 100 1.7 1.1 155
KIRWIN 9550 1.3 .8 162 1.3 .7 186
MARQUETTE 8760 1.8 .8 225 1.9 1.0 190
SYLVAN LAKE 8420 .5 .7 71 1.4 1.0 140
SYLVAN ROAD 7120 .4 .0 1.0 .7 143
YOUNTS PEAK 8350 .9 .5 180 1.2 .8 150
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Basin wide percent of average 126 155
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .8 .2 400 1.6 .8 200
BIG GOOSE 7990 .9 .3 300 1.5 1.0 150
BONE SPRINGS DIV 9350 1.4 1.2 117 1.8 1.1 164
BURGESS JUNCTION 7880 1.0 .6 167 1.7 1.0 170
CLOUD PEAK RESERVOIR 9860 1.3 .4 325 1.5 1.2 125
DOME LAKE 8880 .9 .7 129 1.5 1.1 136
GRAVE SPRINGS 8550 1.1 .2 550 1.7 1.0 170
HANSEN SAWMILL 8360 1.1 .1 1100 1.1 .8 138
MIDDLE POWDER 7760 1.2 .5 240 1.8 1.1 164
POWDER RIVER PASS 9480 .9 .5 180 1.6 .9 178
SUCKER CREEK 8880 1.2 .5 240 1.9 1.1 173
TIE CREEK 6870 1.8 .0 2.8 1.2 233
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Basin wide percent of average 227 167
BELLE FOURCHE
BLIND PARK 6890 .7 .0 1.0 1.0 100
COLE CANYON 5910 1.5 .2 750 2.5 .8 312
NORTH RAPID CREEK 6130 .5 .1 500 1.5 1.1 136
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Basin wide percent of average 667 172
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .0 100 .1 .8 12
DIVIDE PEAK 8880 .2 .7 29 1.8 1.1 164
ELK RIVER 8700 .0 .1 0 1.0 .9 111
JOE WRIGHT 10120 .5 .7 71 .8 1.4 57
NORTH FRENCH CREEK 10130 .6 1.3 46 1.1 1.2 92
OLD BATTLE 10000 .1 1.0 10 1.2 1.3 92
SAGE CREEK BASIN 7850 .0 .3 0 .8 .6 133
SOUTH BRUSH CREEK 8440 .0 .2 0 .6 1.0 60
TOWER 10500 .1 .9 11 1.1 1.3 85
WEBBER SPRINGS 9250 .0 .5 0 .8 1.2 67
WILLOW CREEK PASS 9540 .4 .3 133 .6 .8 75
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Basin wide percent of average 32 85
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .3 .8 37 .4 .9 44
CASPER MTN. 7900 .6 .6 100 1.5 1.0 150
DEADMAN HILL 10220 .5 .9 56 .5 1.0 50
DEER PARK 9700 1.3 .8 162 2.4 .9 267
LAPRELE CREEK 8375 .0 .2 0 .4 .7 57
RENO HILL 8400 1.0 .7 143 1.0 1.0 100
ROACH 9700 .5 .3 167 .5 .9 56
SAND LAKE 10050 .7 1.2 58 .4 1.2 33
SOUTH PASS 9040 1.6 .4 400 2.8 .8 350
WINDY PEAK 7900 .3 .1 300 .2 .7 29
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Basin wide percent of average 113 111
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 .5 .7 71
DIVIDE PEAK 8880 .2 .7 29 1.8 1.1 164
OLD BATTLE 10000 .1 1.0 10 1.2 1.3 92
SANDSTONE RS 8150 .0 .0 100 .6 .9 67
WHISKEY PARK 8950 .0 .5 0 1.0 1.2 83
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Basin wide percent of average 14 98
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .6 .4 150 1.2 .7 171
BLIND BULL SUM 8650 1.3 .4 325 1.9 .8 237
EAST RIM DIVIDE 7930 .8 .0 1.7 .6 283
ELKHART PARK G.S. 9400 .8 .2 400 1.6 .8 200
GROS VENTRE SUMMIT 8750 1.3 .5 260 1.7 .8 212
GUNSIGHT PASS 9820 .5 -M * .9 -M *
KENDALL R.S. 7740 .8 .0 1.3 .6 217
LOOMIS PARK 8240 1.0 .2 500 1.9 .7 271
NEW FORK LAKE 8340 .6 .0 1.2 .6 200
SNIDER BASIN 8060 .7 .1 700 .8 .6 133
SPRING CREEK DIVIDE 9000 .7 .3 233 1.0 .9 111
TRIPLE PEAK 8500 1.2 .2 600 1.6 .9 178
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Basin wide percent of average 330 199
LOWER GREEN RIVER
HAMS FORK 7840 .4 .0 1.1 .6 183
HEWINTA 9519 -M .4 * 1.1 1.0 110
HICKERSON PARK 9145 -M .0 * 1.0 .7 143
HOLE-IN-ROCK 9150 .5 .0 1.6 .7 229
INDIAN CREEK 9425 1.3 .4 325 1.5 .9 167
KELLEY R.S. 8180 .5 .2 250 1.2 .8 150
STEEL CREEK PARK 10200 .6 .7 86 1.6 .9 178
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Basin wide percent of average 185* 162
UPPER BEAR RIVER
BUG LAKE 7950 .4 .5 80 1.3 .9 144
HAYDEN FORK 9212 .1 .3 33 1.2 1.0 120
KELLEY R.S. 8180 .5 .2 250 1.2 .8 150
LILY LAKE 9156 .4 .4 100 1.7 .9 189
MONTE CRISTO 8960 .9 .6 150 1.7 1.1 155
SALT RIVER SUMMIT 7760 .0 .0 100 .9 .7 129
TRIAL LAKE 9992 .3 .8 37 1.3 1.1 118
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Basin wide percent of average 93 143
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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 1961-90.
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.