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 WEDNESDAY: OCTOBER 12 , 2005
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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 .2 .1 200* 1.3 .7 186
COTTONWOOD CREEK 7600 .2 .1 200* 1.9 1.1 173
GRANITE CREEK 6770 .0 .1 0* .6 .6 100
GRASSY LAKE 7265 .3 .2 150* 2.2 1.2 183
GROS VENTRE SUMMIT 8750 .8 .5 160* 1.1 .7 157
LEWIS LAKE DIVIDE 7850 .2 .1 200* 1.6 1.2 133
PHILLIPS BENCH 8200 .1 .2 50* 1.1 .9 122
SALT RIVER SUMMIT 7600 .0 .0 100* .9 .7 129
SNAKE RIVER STATION 6920 .1 .0 * 1.3 .8 162
SPRING CREEK DIVIDE 9000 .3 .2 150* .5 1.0 50
THUMB DIVIDE 7980 .0 .1 0* 1.4 .7 200
TOGWOTEE PASS 9580 1.5 .8 188* 2.0 1.0 200
TWO OCEAN PLATEAU 9240 1.6 .9 178* 2.1 1.1 191
WILLOW CREEK 8450 .8 .3 267* 2.7 1.3 208
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Basin wide percent of average 167* 159
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 -M 1.1 * -M .8 *
BLACK BEAR 8170 1.9 .7 271* 2.5 1.3 192
CANYON 8090 .6 .2 300* 1.2 .7 171
FISHER CREEK 9100 1.3 .8 162* 1.2 1.2 100
MADISON PLATEAU 7750 1.0 .4 250* 1.9 .9 211
NORTHEAST ENTRANCE 7350 .0 .1 0* .8 .6 133
PARKER PEAK 9400 1.3 1.0 130* 1.4 .9 156
SYLVAN LAKE 8420 .6 .8 75* 1.9 1.0 190
THUMB DIVIDE 7980 .0 .1 0* 1.4 .7 200
TWO OCEAN PLATEAU 9240 1.6 .9 178* 2.1 1.1 191
WHISKEY CREEK 6800 .2 .1 200* 1.3 .8 162
WHITE MILL 8700 .9 .6 150* 1.1 1.0 110
WOLVERINE 7650 .1 .1 100* .9 .7 129
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Basin wide percent of average 164* 162
WIND RIVER
BURROUGHS CREEK 8750 .9 .3 300* 1.6 .6 267
COLD SPRINGS 9630 1.1 .2 550* 2.0 .7 286
DEER PARK 9700 .7 .7 100* 1.2 .9 133
HOBBS PARK 10100 1.1 .6 183* 2.1 .8 262
LITTLE WARM 9370 1.4 .4 350* 1.9 .6 317
SOUTH PASS 9040 .6 .3 200* 1.6 .8 200
ST. LAWRENCE ALT 8620 .2 .1 200* 1.9 .6 317
TOGWOTEE PASS 9580 1.5 .8 188* 2.0 1.0 200
TOWNSEND CREEK 8700 .8 .2 400* 2.2 .8 275
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Basin wide percent of average 231* 243
BIGHORN BASIN
BALD MTN. 9380 1.9 1.3 146* 2.0 .9 222
BEAR TRAP MEADOW 8200 .3 .2 150* 1.9 .6 317
BLACKWATER 9780 .9 1.3 69* 1.4 1.0 140
BONE SPRINGS DIV 9350 2.0 1.1 182* 2.2 .9 244
EVENING STAR 9200 1.0 1.0 100* 1.7 1.0 170
GRAVE SPRINGS 8550 .8 .2 400* 2.3 .8 287
KIRWIN 9550 1.3 .7 186* 1.4 .7 200
MARQUETTE 8760 .4 .8 50* 1.9 .9 211
MIDDLE POWDER 7760 1.4 .5 280* 2.2 1.0 220
OWL CREEK 8975 1.7 .3 567* 1.7 .4 425
POWDER RIVER PASS 9480 1.1 .5 220* 1.6 .7 229
SHELL CREEK 9580 1.8 1.4 129* 1.9 .7 271
SYLVAN LAKE 8420 .6 .8 75* 1.9 1.0 190
SYLVAN ROAD 7120 .2 .1 200* 1.3 .8 162
TIMBER CREEK 7950 .5 .1 500* 1.7 .6 283
YOUNTS PEAK 8350 -M .5 * 2.2 .7 314
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Basin wide percent of average 154* 231
SHOSHONE RIVER
BLACKWATER 9780 .9 1.3 69* 1.4 1.0 140
EVENING STAR 9200 1.0 1.0 100* 1.7 1.0 170
KIRWIN 9550 1.3 .7 186* 1.4 .7 200
MARQUETTE 8760 .4 .8 50* 1.9 .9 211
SYLVAN LAKE 8420 .6 .8 75* 1.9 1.0 190
SYLVAN ROAD 7120 .2 .1 200* 1.3 .8 162
YOUNTS PEAK 8350 -M .5 * 2.2 .7 314
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Basin wide percent of average 94* 193
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .3 .2 150* 1.9 .6 317
BIG GOOSE 7990 .8 .2 400* 2.2 .8 275
BONE SPRINGS DIV 9350 2.0 1.1 182* 2.2 .9 244
BURGESS JUNCTION 7880 1.2 .5 240* 2.2 .8 275
CLOUD PEAK RESERVOIR 9860 1.1 .3 367* 2.4 1.0 240
DOME LAKE 8880 1.5 .6 250* 2.3 .9 256
GRAVE SPRINGS 8550 .8 .2 400* 2.3 .8 287
HANSEN SAWMILL 8360 .4 .2 200* 1.9 .7 271
MIDDLE POWDER 7760 1.4 .5 280* 2.2 1.0 220
POWDER RIVER PASS 9480 1.1 .5 220* 1.6 .7 229
SUCKER CREEK 8880 2.0 .4 500* 2.3 .9 256
TIE CREEK 6870 .3 .0 * 2.6 .9 289
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Basin wide percent of average 268* 261
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 1.1 1.0 110
COLE CANYON 5910 .0 .0 100* 1.7 -M *
NORTH RAPID CREEK 6130 .0 .1 0* 1.2 .9 133
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Basin wide percent of average 0* 121
UPPER N. PLATTE RIVER
COLUMBINE 9160 .8 .0 * 2.5 .9 278
DIVIDE PEAK 8860 1.0 .6 167* 3.1 1.0 310
ELK RIVER 8700 .0 .1 0* 2.3 .8 287
JOE WRIGHT 10120 .8 .6 133* 2.2 1.2 183
NORTH FRENCH CREEK 10130 .6 1.1 55* 1.8 1.2 150
OLD BATTLE 9920 -M .9 * -M 1.3 *
SAGE CREEK BASIN 7850 .3 .2 150* 1.6 .6 267
SOUTH BRUSH CREEK 8440 .2 .2 100* 1.8 1.0 180
TOWER 10500 1.6 .8 200* 3.4 1.5 227
WEBBER SPRINGS 9250 -M .4 * -M 1.1 *
WILLOW CREEK PASS 9540 .7 .2 350* 1.7 .7 243
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Basin wide percent of average 137* 229
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .5 .8 62* .8 .9 89
CASPER MTN. 7850 1.1 .5 220* 1.3 .9 144
DEADMAN HILL 10220 .7 .8 87* 2.0 .9 222
DEER PARK 9700 .7 .7 100* 1.2 .9 133
LAPRELE CREEK 8375 .0 .2 0* .6 .7 86
RENO HILL 8500 1.2 .5 240* 2.0 .9 222
ROACH 9700 1.7 .2 850* 2.5 .9 278
SAND LAKE 10050 1.7 1.1 155* 2.4 1.1 218
SOUTH PASS 9040 .6 .3 200* 1.6 .8 200
WINDY PEAK 7900 .1 .1 100* 1.3 .6 217
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Basin wide percent of average 160* 183
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 1.5 .7 214
DIVIDE PEAK 8860 1.0 .6 167* 3.1 1.0 310
OLD BATTLE 9920 -M .9 * -M 1.3 *
SANDSTONE RS 8150 .0 .1 0* 1.7 .9 189
WHISKEY PARK 8950 .6 .4 150* 2.2 1.1 200
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Basin wide percent of average 145* 230
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .6 .3 200* 1.2 .7 171
BLIND BULL SUM 8900 .5 .3 167* .8 .8 100
EAST RIM DIVIDE 7930 .1 .0 * .4 .5 80
ELKHART PARK G.S. 9400 .7 .2 350* .9 .7 129
GROS VENTRE SUMMIT 8750 .8 .5 160* 1.1 .7 157
KENDALL R.S. 7740 .0 .0 100* .8 .6 133
LOOMIS PARK 8240 .1 .2 50* .4 .7 57
NEW FORK LAKE 8340 .0 .0 100* .6 .6 100
SNIDER BASIN 8060 .0 .1 0* .4 .6 67
SPRING CREEK DIVIDE 9000 .3 .2 150* .5 1.0 50
TRIPLE PEAK 8500 .1 .2 50* .8 .8 100
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Basin wide percent of average 155* 103
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .7 .5 140
HEWINTA 9500 .0 .3 0* .8 .9 89
HICKERSON PARK 9100 .2 .0 * .7 .6 117
HOLE-IN-ROCK 9150 .0 .0 100* .8 .6 133
INDIAN CREEK 9425 .7 .3 233* 1.0 1.0 100
KELLEY R.S. 8180 .1 .2 50* .9 .8 112
STEEL CREEK PARK 10100 -M .7 * .9 .9 100
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Basin wide percent of average 100* 109
UPPER BEAR RIVER
BUG LAKE 7950 .0 .4 0* .7 .9 78
HAYDEN FORK 9100 .0 .3 0* .4 .9 44
KELLEY R.S. 8180 .1 .2 50* .9 .8 112
LILY LAKE 9050 .0 .3 0* .5 .9 56
MONTE CRISTO 8960 .1 .6 17* .8 1.0 80
SALT RIVER SUMMIT 7600 .0 .0 100* .9 .7 129
TRIAL LAKE 9960 .0 .7 0* .4 1.0 40
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Basin wide percent of average 8* 74
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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.