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 13 , 2007
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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 .1 100* 1.7 .8 212
COTTONWOOD CREEK 7600 .0 .1 0* 1.6 1.2 133
GRANITE CREEK 6770 .1 .1 100* 1.4 .7 200
GRASSY LAKE 7265 .2 .3 67* 1.7 1.4 121
GROS VENTRE SUMMIT 8750 .8 .5 160* 1.7 .7 243
LEWIS LAKE DIVIDE 7850 .2 .1 200* 1.2 1.3 92
PHILLIPS BENCH 8200 .0 .2 0* 1.4 1.0 140
SALT RIVER SUMMIT 7600 .1 .0 * 1.2 .8 150
SNAKE RIVER STATION 6920 .1 .0 * 1.7 .9 189
SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.0 100
THUMB DIVIDE 7980 .1 .1 100* 2.0 .8 250
TOGWOTEE PASS 9580 1.6 .9 178* 2.4 1.1 218
TWO OCEAN PLATEAU 9240 2.1 1.0 210* 2.8 1.2 233
WILLOW CREEK 8450 .1 .3 33* 1.9 1.5 127
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Basin wide percent of average 135* 165
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.0 1.2 167* 2.0 .9 222
BLACK BEAR 8170 1.1 .7 157* 2.3 1.4 164
CANYON 8090 .6 .2 300* 1.9 .7 271
FISHER CREEK 9100 2.7 .9 300* 3.1 1.3 238
MADISON PLATEAU 7750 .9 .4 225* 2.2 1.0 220
NORTHEAST ENTRANCE 7350 -M .1 * -M .6 *
PARKER PEAK 9400 1.7 1.1 155* 2.6 .9 289
SYLVAN LAKE 8420 .2 .8 25* 2.1 1.0 210
THUMB DIVIDE 7980 .1 .1 100* 2.0 .8 250
TWO OCEAN PLATEAU 9240 2.1 1.0 210* 2.8 1.2 233
WHISKEY CREEK 6800 .2 .1 200* 2.4 .9 267
WHITE MILL 8700 1.9 .6 317* 2.3 1.1 209
WOLVERINE 7650 .1 .1 100* 1.6 .7 229
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Basin wide percent of average 189* 229
WIND RIVER
BURROUGHS CREEK 8750 .3 .3 100* 1.4 .7 200
COLD SPRINGS 9630 .1 .2 50* 1.4 .8 175
DEER PARK 9700 .6 .7 86* 2.0 1.0 200
HOBBS PARK 10100 .6 .6 100* 2.3 .9 256
LITTLE WARM 9370 .1 .4 25* 1.2 .7 171
SOUTH PASS 9040 .1 .4 25* 1.1 .9 122
ST. LAWRENCE ALT 8620 .2 .1 200* 1.0 .7 143
TOGWOTEE PASS 9580 1.6 .9 178* 2.4 1.1 218
TOWNSEND CREEK 8700 .1 .3 33* 1.5 .9 167
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Basin wide percent of average 95* 186
BIGHORN BASIN
BALD MTN. 9380 1.3 1.4 93* 2.2 1.0 220
BEAR TRAP MEADOW 8200 .1 .2 50* .7 .7 100
BLACKWATER 9780 1.8 1.4 129* 2.2 1.1 200
BONE SPRINGS DIV 9350 -M 1.2 * -M 1.0 *
EVENING STAR 9200 1.7 1.1 155* 2.5 1.1 227
GRAVE SPRINGS 8550 .1 .2 50* 1.2 .9 133
KIRWIN 9550 1.8 .7 257* 2.7 .7 386
MARQUETTE 8760 .1 .8 12* 1.4 .9 156
MIDDLE POWDER 7760 .2 .5 40* .8 1.0 80
OWL CREEK 8975 .5 .3 167* 1.5 .5 300
POWDER RIVER PASS 9480 .1 .5 20* 1.6 .8 200
SHELL CREEK 9580 1.6 1.5 107* 2.4 .8 300
SYLVAN LAKE 8420 .2 .8 25* 2.1 1.0 210
SYLVAN ROAD 7120 .0 .1 0* 2.0 .9 222
TIMBER CREEK 7950 .5 .1 500* 1.9 .7 271
YOUNTS PEAK 8350 .9 .5 180* 1.9 .7 271
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Basin wide percent of average 108* 212
SHOSHONE RIVER
BLACKWATER 9780 1.8 1.4 129* 2.2 1.1 200
EVENING STAR 9200 1.7 1.1 155* 2.5 1.1 227
KIRWIN 9550 1.8 .7 257* 2.7 .7 386
MARQUETTE 8760 .1 .8 12* 1.4 .9 156
SYLVAN LAKE 8420 .2 .8 25* 2.1 1.0 210
SYLVAN ROAD 7120 .0 .1 0* 2.0 .9 222
YOUNTS PEAK 8350 .9 .5 180* 1.9 .7 271
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Basin wide percent of average 120* 231
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .2 50* .7 .7 100
BIG GOOSE 7990 .1 .3 33* 1.3 .9 144
BONE SPRINGS DIV 9350 -M 1.2 * -M 1.0 *
BURGESS JUNCTION 7880 .0 .6 0* 1.1 .9 122
CLOUD PEAK RESERVOIR 9860 .2 .4 50* 1.6 1.0 160
DOME LAKE 8880 .0 .6 0* 1.8 1.0 180
GRAVE SPRINGS 8550 .1 .2 50* 1.2 .9 133
HANSEN SAWMILL 8360 .2 .2 100* 1.1 .7 157
MIDDLE POWDER 7760 .2 .5 40* .8 1.0 80
POWDER RIVER PASS 9480 .1 .5 20* 1.6 .8 200
SUCKER CREEK 8880 .1 .5 20* 1.2 1.0 120
TIE CREEK 6870 .0 .0 100* 1.0 1.0 100
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Basin wide percent of average 27* 135
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * .7 1.0 70
COLE CANYON 5910 .0 .0 100* .8 -M *
NORTH RAPID CREEK 6130 .0 .1 0* .7 1.0 70
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Basin wide percent of average 0* 70
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 .0 * 1.6 1.0 160
DIVIDE PEAK 8860 -M .6 * -M 1.1 *
ELK RIVER 8700 .0 .1 0* 1.4 .9 156
JOE WRIGHT 10120 .3 .7 43* 1.5 1.4 107
NORTH FRENCH CREEK 10130 .2 1.2 17* 1.3 1.4 93
OLD BATTLE 9920 .3 1.0 30* 2.0 1.4 143
SAGE CREEK BASIN 7850 .0 .3 0* 1.0 .6 167
SOUTH BRUSH CREEK 8440 .2 .2 100* 1.3 1.0 130
TOWER 10500 .1 .9 11* 2.8 1.6 175
WEBBER SPRINGS 9250 .1 .4 25* 1.3 1.2 108
WILLOW CREEK PASS 9540 .3 .3 100* .8 .8 100
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Basin wide percent of average 29* 133
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .0 .8 0* .8 1.0 80
CASPER MTN. 7850 .1 .5 20* 1.2 1.0 120
DEADMAN HILL 10220 .6 .8 75* .6 1.0 60
DEER PARK 9700 .6 .7 86* 2.0 1.0 200
LAPRELE CREEK 8375 .0 .3 0* .7 .8 87
RENO HILL 8500 .1 .6 17* 1.0 1.0 100
ROACH 9700 .1 .3 33* .9 .9 100
SAND LAKE 10050 .6 1.2 50* 1.2 1.2 100
SOUTH PASS 9040 .1 .4 25* 1.1 .9 122
WINDY PEAK 7900 .0 .1 0* .4 .7 57
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Basin wide percent of average 39* 104
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * .9 .8 112
DIVIDE PEAK 8860 -M .6 * -M 1.1 *
OLD BATTLE 9920 .3 1.0 30* 2.0 1.4 143
SANDSTONE RS 8150 .0 .1 0* .8 .9 89
WHISKEY PARK 8950 .0 .4 0* 1.3 1.2 108
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Basin wide percent of average 20* 116
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .2 .3 67* 1.3 .7 186
BLIND BULL SUM 8900 .0 .3 0* .9 .9 100
EAST RIM DIVIDE 7930 .0 .0 100* 1.2 .5 240
ELKHART PARK G.S. 9400 .0 .2 0* 1.4 .8 175
GROS VENTRE SUMMIT 8750 .8 .5 160* 1.7 .7 243
KENDALL R.S. 7740 .1 .0 * 1.1 .6 183
LOOMIS PARK 8240 .0 .2 0* 1.1 .7 157
NEW FORK LAKE 8340 .0 .0 100* 1.3 .6 217
SNIDER BASIN 8060 .3 .1 300* .6 .7 86
SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.0 100
TRIPLE PEAK 8500 .1 .2 50* 1.1 .9 122
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Basin wide percent of average 71* 157
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .8 .6 133
HEWINTA 9500 .0 .3 0* 2.8 1.0 280
HICKERSON PARK 9100 .1 .0 * 2.3 .7 329
HOLE-IN-ROCK 9150 .0 .0 100* 2.3 .7 329
INDIAN CREEK 9425 .2 .3 67* 1.1 1.0 110
KELLEY R.S. 8180 .2 .2 100* 1.6 .9 178
STEEL CREEK PARK 10100 2.2 .7 314* 2.8 .9 311
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Basin wide percent of average 173* 236
UPPER BEAR RIVER
BUG LAKE 7950 .1 .5 20* .9 .9 100
HAYDEN FORK 9100 .1 .4 25* 1.3 1.0 130
KELLEY R.S. 8180 .2 .2 100* 1.6 .9 178
LILY LAKE 9050 .0 .4 0* 2.0 1.0 200
MONTE CRISTO 8960 .2 .6 33* 1.5 1.1 136
SALT RIVER SUMMIT 7600 .1 .0 * 1.2 .8 150
TRIAL LAKE 9960 .1 .7 14* .9 1.1 82
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Basin wide percent of average 25* 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.