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 , 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 .1 .0 * 2.4 .7 343
COTTONWOOD CREEK 7670 .2 .0 * 3.6 .9 400
GRAND TARGHEE 9260 2.4 -M * 3.3 -M *
GRANITE CREEK 6770 .1 .0 * 1.7 .6 283
GRASSY LAKE 7265 .5 .1 500* 4.0 1.1 364
GROS VENTRE SUMMIT 8750 .2 .4 50* 1.4 .7 200
GUNSIGHT PASS 9820 .9 -M * 1.7 -M *
LEWIS LAKE DIVIDE 7850 1.1 .0 * 3.1 .9 344
PHILLIPS BENCH 8200 .0 .1 0* 1.6 .7 229
SALT RIVER SUMMIT 7760 -M .0 * -M .6 *
SNAKE RIVER STATION 6920 .1 .0 * 2.4 .8 300
SPRING CREEK DIVIDE 9000 1.8 .2 900* 2.9 .7 414
THUMB DIVIDE 7980 .1 .1 100* 1.3 .7 186
TOGWOTEE PASS 9580 1.3 .8 163* 2.1 .9 233
TWO OCEAN PLATEAU 9240 2.6 .9 289* 2.5 1.0 250
WILLOW CREEK 8380 1.0 .3 333* 3.4 1.3 262
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Basin wide percent of average 314* 295
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .9 1.1 82* 1.2 .7 171
BLACK BEAR 8170 2.4 .6 400* 4.1 1.0 410
CANYON 7870 .0 .2 0* .9 .6 150
FISHER CREEK 9100 1.6 .8 200* 2.4 1.0 240
MADISON PLATEAU 7750 .0 .4 0* 3.2 .9 356
NORTHEAST ENTRANCE 7350 .0 .0 100* .8 .6 133
PARKER PEAK 9400 .9 1.0 90* 1.3 .9 144
SYLVAN LAKE 8420 1.0 .6 167* 2.4 .9 267
THUMB DIVIDE 7980 .1 .1 100* 1.3 .7 186
TWO OCEAN PLATEAU 9240 2.6 .9 289* 2.5 1.0 250
WHISKEY CREEK 6800 .0 .1 0* 2.8 .7 400
WHITE MILL 8700 1.3 .6 217* 1.8 .9 200
WOLVERINE 7650 .0 .1 0* .5 .7 71
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Basin wide percent of average 166* 238
WIND RIVER
BURROUGHS CREEK 8750 .0 .2 0* 1.0 .6 167
CASTLE CREEK 8400 .0 -M * .9 -M *
COLD SPRINGS 9630 .7 .2 350* 1.3 .6 217
DEER PARK 9700 1.0 .8 125* 2.0 .7 286
HOBBS PARK 10100 2.0 .7 286* 2.1 .7 300
LITTLE WARM 9370 .0 .3 0* 1.0 .6 167
SOUTH PASS 9040 1.4 .4 350* 2.0 .7 286
ST. LAWRENCE ALT 8620 .0 .1 0* .9 .6 150
TOGWOTEE PASS 9580 1.3 .8 163* 2.1 .9 233
TOWNSEND CREEK 8700 1.1 .3 367* 2.0 .8 250
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Basin wide percent of average 197* 232
BIGHORN BASIN
BALD MTN. 9380 2.5 1.4 179* 2.5 .9 278
BEAR TRAP MEADOW 8200 1.0 .2 500* 1.0 .6 167
BLACKWATER 9780 2.0 1.3 154* 1.9 .9 211
BONE SPRINGS DIV 9350 2.7 1.1 245* 3.0 1.0 300
EVENING STAR 9200 .9 1.0 90* 1.6 .9 178
GRAVE SPRINGS 8550 .9 .4 225* 1.4 .9 156
KIRWIN 9550 1.5 .8 188* 2.2 .6 367
MARQUETTE 8760 .6 -M * 2.3 .8 288
MIDDLE POWDER 7760 1.8 .5 360* 3.0 .9 333
OWL CREEK 8975 1.2 .4 300* 1.2 .4 300
POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .7 300
SHELL CREEK 9580 3.0 1.5 200* 2.8 .8 350
SYLVAN LAKE 8420 1.0 .6 167* 2.4 .9 267
SYLVAN ROAD 7120 .0 .0 100* .8 .6 133
TIMBER CREEK 7950 .0 .1 0* 2.8 .6 467
YOUNTS PEAK 8350 .0 .5 0* 1.4 .7 200
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Basin wide percent of average 197* 266
SHOSHONE RIVER
BLACKWATER 9780 2.0 1.3 154* 1.9 .9 211
EVENING STAR 9200 .9 1.0 90* 1.6 .9 178
KIRWIN 9550 1.5 .8 188* 2.2 .6 367
MARQUETTE 8760 .6 -M * 2.3 .8 288
SYLVAN LAKE 8420 1.0 .6 167* 2.4 .9 267
SYLVAN ROAD 7120 .0 .0 100* .8 .6 133
YOUNTS PEAK 8350 .0 .5 0* 1.4 .7 200
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Basin wide percent of average 129* 233
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.0 .2 500* 1.0 .6 167
BIG GOOSE 7990 1.7 .3 567* 3.1 .8 388
BONE SPRINGS DIV 9350 2.7 1.1 245* 3.0 1.0 300
BURGESS JUNCTION 7880 1.6 .6 267* 3.2 .8 400
CLOUD PEAK RESERVOIR 9860 1.8 .3 600* 2.6 1.0 260
DOME LAKE 8880 2.1 .7 300* 3.2 .9 356
GRAVE SPRINGS 8550 .9 .4 225* 1.4 .9 156
HANSEN SAWMILL 8360 .0 .2 0* 1.3 .7 186
LITTLE GOOSE 8870 1.9 -M * 3.4 -M *
MIDDLE POWDER 7760 1.8 .5 360* 3.0 .9 333
POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .7 300
SOLDIER PARK 8720 .7 -M * 2.0 -M *
SUCKER CREEK 8880 2.5 .5 500* 3.2 .9 356
TIE CREEK 6870 .0 .0 100* 3.7 1.0 370
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Basin wide percent of average 340* 302
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* .7 .9 78
COLE CANYON 5910 .0 .2 0* 1.2 .7 171
NORTH RAPID CREEK 6130 .0 .1 0* .4 .9 44
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Basin wide percent of average 0* 92
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 1.8 -M * 2.4 -M *
CINNABAR PARK 9574 1.2 .2 600* 1.9 .7 271
COLUMBINE 9160 .1 .0 * 1.3 .7 186
DIVIDE PEAK 8880 .8 .6 133* 2.0 .9 222
ELK RIVER 8700 .0 .1 0* 1.4 .7 200
JOE WRIGHT 10120 .1 .6 17* 1.5 1.2 125
NORTH FRENCH CREEK 10130 1.6 1.1 145* 2.0 1.0 200
OLD BATTLE 10000 1.8 .9 200* 2.2 1.1 200
SAGE CREEK BASIN 7850 .0 .2 0* 1.3 .5 260
SOUTH BRUSH CREEK 8440 .1 .1 100* 1.6 .9 178
TOWER 10500 1.1 .7 157* 2.1 1.1 191
WEBBER SPRINGS 9250 1.0 .4 250* 2.1 1.0 210
WILLOW CREEK PASS 9540 .2 .2 100* .8 .7 114
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Basin wide percent of average 157* 192
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.4 .7 200* 1.9 .8 238
CASPER MTN. 7900 2.6 .5 520* 3.4 .8 425
DEADMAN HILL 10220 .7 .7 100* 1.5 .9 167
DEER PARK 9700 1.0 .8 125* 2.0 .7 286
LAPRELE CREEK 8375 .4 .2 200* 1.7 .6 283
RENO HILL 8400 2.0 .6 333* 2.4 .8 300
ROACH 9700 1.5 .2 750* 1.9 .8 238
SAND LAKE 10050 1.9 1.1 173* 2.1 1.0 210
SOUTH PASS 9040 1.4 .4 350* 2.0 .7 286
WINDY PEAK 7900 .2 .1 200* 1.1 .6 183
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Basin wide percent of average 247* 260
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 1.0 .6 167
DIVIDE PEAK 8880 .8 .6 133* 2.0 .9 222
OLD BATTLE 10000 1.8 .9 200* 2.2 1.1 200
SANDSTONE RS 8150 -M .0 * 1.0 .7 143
WHISKEY PARK 8950 .3 .4 75* 1.8 1.0 180
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Basin wide percent of average 153* 186
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.1 .3 367* 1.8 .6 300
BLIND BULL SUM 8650 1.3 .3 433* 1.3 .7 186
EAST RIM DIVIDE 7930 .3 .0 * 1.4 .5 280
ELKHART PARK G.S. 9400 1.0 .1 1000* 2.1 .7 300
GROS VENTRE SUMMIT 8750 .2 .4 50* 1.4 .7 200
GUNSIGHT PASS 9820 .9 -M * 1.7 -M *
KENDALL R.S. 7740 .0 .0 100* 1.8 .5 360
LOOMIS PARK 8240 .1 .2 50* 1.7 .6 283
NEW FORK LAKE 8340 .3 .0 * 1.8 .5 360
POCKET CREEK 9360 1.6 -M * 2.3 -M *
SNIDER BASIN 8060 .1 .1 100* 1.5 .5 300
SPRING CREEK DIVIDE 9000 1.8 .2 900* 2.9 .7 414
TRIPLE PEAK 8500 .3 .1 300* 2.2 .7 314
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Basin wide percent of average 382* 297
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 * 2.2 .5 440
HEWINTA 9519 .1 .3 33* 2.4 .8 300
HICKERSON PARK 9145 -M .0 * -M .6 *
HOLE-IN-ROCK 9150 1.1 .0 * 2.6 .6 433
INDIAN CREEK 9425 2.2 .3 733* 2.5 .8 313
KELLEY R.S. 8180 .8 .1 800* 2.5 .7 357
STEEL CREEK PARK 10200 -M .6 * -M .8 *
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Basin wide percent of average 629* 359
UPPER BEAR RIVER
BUG LAKE 7950 -M .4 * -M .8 *
HAYDEN FORK 9212 .2 .3 67* 3.5 .8 438
KELLEY R.S. 8180 .8 .1 800* 2.5 .7 357
LILY LAKE 9156 .5 .4 125* 2.3 .8 288
MONTE CRISTO 8960 -M .6 * -M 1.0 *
SALT RIVER SUMMIT 7760 -M .0 * -M .6 *
TRIAL LAKE 9992 1.4 .7 200* 2.3 .9 256
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Basin wide percent of average 193* 331
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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.