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 SUNDAY: OCTOBER 14 , 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 .9 189
COTTONWOOD CREEK 7600 .0 .1 0* 1.7 1.3 131
GRANITE CREEK 6770 .0 .1 0* 1.3 .8 162
GRASSY LAKE 7265 .1 .3 33* 1.6 1.5 107
GROS VENTRE SUMMIT 8750 .6 .6 100* 1.8 .8 225
LEWIS LAKE DIVIDE 7850 .2 .1 200* 1.1 1.4 79
PHILLIPS BENCH 8200 .0 .2 0* 1.4 1.0 140
SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .8 138
SNAKE RIVER STATION 6920 .0 .0 100* 1.7 1.0 170
SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.1 91
THUMB DIVIDE 7980 .0 .1 0* 1.9 .9 211
TOGWOTEE PASS 9580 1.6 .9 178* 2.5 1.2 208
TWO OCEAN PLATEAU 9240 2.1 1.1 191* 2.8 1.3 215
WILLOW CREEK 8450 .1 .4 25* 1.9 1.6 119
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Basin wide percent of average 114* 151
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.0 1.2 167* 1.9 .9 211
BLACK BEAR 8170 .8 .8 100* 2.2 1.5 147
CANYON 8090 .3 .2 150* 1.9 .8 237
FISHER CREEK 9100 2.6 1.0 260* 3.0 1.4 214
MADISON PLATEAU 7750 .6 .4 150* 2.1 1.1 191
NORTHEAST ENTRANCE 7350 -M .1 * -M .7 *
PARKER PEAK 9400 1.6 1.1 145* 2.4 1.0 240
SYLVAN LAKE 8420 .1 .9 11* 2.2 1.1 200
THUMB DIVIDE 7980 .0 .1 0* 1.9 .9 211
TWO OCEAN PLATEAU 9240 2.1 1.1 191* 2.8 1.3 215
WHISKEY CREEK 6800 .2 .1 200* 2.4 1.0 240
WHITE MILL 8700 1.9 .7 271* 2.2 1.2 183
WOLVERINE 7650 .0 .1 0* 1.4 .8 175
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Basin wide percent of average 158* 203
WIND RIVER
BURROUGHS CREEK 8750 .3 .3 100* 1.7 .7 243
COLD SPRINGS 9630 .3 .2 150* 1.7 .8 212
DEER PARK 9700 .8 .8 100* 2.3 1.1 209
HOBBS PARK 10100 .9 .7 129* 2.4 .9 267
LITTLE WARM 9370 .2 .4 50* 1.5 .8 188
SOUTH PASS 9040 .3 .4 75* 1.6 .9 178
ST. LAWRENCE ALT 8620 .2 .1 200* 1.1 .8 138
TOGWOTEE PASS 9580 1.6 .9 178* 2.5 1.2 208
TOWNSEND CREEK 8700 .2 .3 67* 2.0 .9 222
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Basin wide percent of average 117* 207
BIGHORN BASIN
BALD MTN. 9380 1.3 1.4 93* 2.0 1.0 200
BEAR TRAP MEADOW 8200 .1 .2 50* .9 .8 112
BLACKWATER 9780 1.9 1.4 136* 2.3 1.2 192
BONE SPRINGS DIV 9350 -M 1.2 * -M 1.1 *
EVENING STAR 9200 1.7 1.1 155* 2.6 1.2 217
GRAVE SPRINGS 8550 .1 .2 50* 1.2 .9 133
KIRWIN 9550 1.9 .8 237* 2.8 .8 350
MARQUETTE 8760 .1 .9 11* 1.5 1.0 150
MIDDLE POWDER 7760 .3 .6 50* .8 1.1 73
OWL CREEK 8975 .3 .3 100* 1.5 .5 300
POWDER RIVER PASS 9480 .2 .5 40* 1.8 .8 225
SHELL CREEK 9580 1.6 1.5 107* 2.4 .9 267
SYLVAN LAKE 8420 .1 .9 11* 2.2 1.1 200
SYLVAN ROAD 7120 .0 .1 0* 2.1 .9 233
TIMBER CREEK 7950 .3 .1 300* 2.1 .7 300
YOUNTS PEAK 8350 .9 .6 150* 2.0 .8 250
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Basin wide percent of average 102* 206
SHOSHONE RIVER
BLACKWATER 9780 1.9 1.4 136* 2.3 1.2 192
EVENING STAR 9200 1.7 1.1 155* 2.6 1.2 217
KIRWIN 9550 1.9 .8 237* 2.8 .8 350
MARQUETTE 8760 .1 .9 11* 1.5 1.0 150
SYLVAN LAKE 8420 .1 .9 11* 2.2 1.1 200
SYLVAN ROAD 7120 .0 .1 0* 2.1 .9 233
YOUNTS PEAK 8350 .9 .6 150* 2.0 .8 250
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Basin wide percent of average 114* 221
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .1 .2 50* .9 .8 112
BIG GOOSE 7990 .5 .3 167* 1.7 .9 189
BONE SPRINGS DIV 9350 -M 1.2 * -M 1.1 *
BURGESS JUNCTION 7880 .0 .6 0* 1.2 1.0 120
CLOUD PEAK RESERVOIR 9860 1.1 .4 275* 2.6 1.1 236
DOME LAKE 8880 .4 .7 57* 2.1 1.1 191
GRAVE SPRINGS 8550 .1 .2 50* 1.2 .9 133
HANSEN SAWMILL 8360 .5 .2 250* 1.6 .8 200
MIDDLE POWDER 7760 .3 .6 50* .8 1.1 73
POWDER RIVER PASS 9480 .2 .5 40* 1.8 .8 225
SUCKER CREEK 8880 .1 .5 20* 1.2 1.0 120
TIE CREEK 6870 .0 .0 100* 1.2 1.1 109
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Basin wide percent of average 79* 154
BELLE FOURCHE
BLIND PARK 6890 .1 .0 * .7 1.1 64
COLE CANYON 5910 .0 .0 100* .7 -M *
NORTH RAPID CREEK 6130 .0 .1 0* .7 1.1 64
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Basin wide percent of average 0* 64
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 .0 * 1.6 1.0 160
DIVIDE PEAK 8860 -M .7 * -M 1.2 *
ELK RIVER 8700 .0 .1 0* 1.3 1.0 130
JOE WRIGHT 10120 .5 .8 62* 2.1 1.5 140
NORTH FRENCH CREEK 10130 .2 1.3 15* 1.5 1.5 100
OLD BATTLE 9920 .4 1.0 40* 2.0 1.6 125
SAGE CREEK BASIN 7850 .1 .3 33* 1.3 .7 186
SOUTH BRUSH CREEK 8440 .1 .2 50* 1.1 1.1 100
TOWER 10500 .3 .9 33* 2.4 1.7 141
WEBBER SPRINGS 9250 .2 .5 40* 1.5 1.3 115
WILLOW CREEK PASS 9540 .3 .3 100* .8 .9 89
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Basin wide percent of average 39* 127
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .2 .8 25* .9 1.1 82
CASPER MTN. 7850 .1 .6 17* 1.2 1.1 109
DEADMAN HILL 10220 1.2 .8 150* 1.3 1.1 118
DEER PARK 9700 .8 .8 100* 2.3 1.1 209
LAPRELE CREEK 8375 .0 .3 0* .7 .8 87
RENO HILL 8500 .1 .6 17* 1.0 1.1 91
ROACH 9700 .5 .3 167* 1.4 1.0 140
SAND LAKE 10050 .9 1.2 75* 1.5 1.3 115
SOUTH PASS 9040 .3 .4 75* 1.6 .9 178
WINDY PEAK 7900 .0 .1 0* .4 .8 50
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Basin wide percent of average 69* 119
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * .9 .8 112
DIVIDE PEAK 8860 -M .7 * -M 1.2 *
OLD BATTLE 9920 .4 1.0 40* 2.0 1.6 125
SANDSTONE RS 8150 .0 .1 0* .9 1.0 90
WHISKEY PARK 8950 .0 .5 0* 1.4 1.3 108
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Basin wide percent of average 25* 111
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .4 25* 1.3 .8 162
BLIND BULL SUM 8900 .0 .4 0* .9 1.0 90
EAST RIM DIVIDE 7930 .0 .0 100* 1.1 .6 183
ELKHART PARK G.S. 9400 .0 .2 0* 1.3 .8 162
GROS VENTRE SUMMIT 8750 .6 .6 100* 1.8 .8 225
KENDALL R.S. 7740 .1 .0 * 1.1 .7 157
LOOMIS PARK 8240 .0 .2 0* 1.1 .8 138
NEW FORK LAKE 8340 .0 .0 100* 1.1 .7 157
SNIDER BASIN 8060 .3 .1 300* .6 .7 86
SPRING CREEK DIVIDE 9000 .1 .3 33* 1.0 1.1 91
TRIPLE PEAK 8500 .1 .2 50* 1.0 1.0 100
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Basin wide percent of average 50* 137
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .8 .6 133
HEWINTA 9500 .0 .4 0* 3.0 1.0 300
HICKERSON PARK 9100 .2 .0 * 2.3 .8 287
HOLE-IN-ROCK 9150 .3 .0 * 2.7 .7 386
INDIAN CREEK 9425 .2 .4 50* 1.2 1.1 109
KELLEY R.S. 8180 .1 .2 50* 1.6 .9 178
STEEL CREEK PARK 10100 2.4 .8 300* 3.0 1.0 300
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Basin wide percent of average 150* 239
UPPER BEAR RIVER
BUG LAKE 7950 .1 .5 20* .8 1.0 80
HAYDEN FORK 9100 .2 .4 50* 1.5 1.0 150
KELLEY R.S. 8180 .1 .2 50* 1.6 .9 178
LILY LAKE 9050 .0 .4 0* 2.1 1.0 210
MONTE CRISTO 8960 .0 .7 0* 1.5 1.2 125
SALT RIVER SUMMIT 7600 .1 .0 * 1.1 .8 138
TRIAL LAKE 9960 .1 .8 12* 1.0 1.2 83
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Basin wide percent of average 17* 135
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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.