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 THURSDAY: OCTOBER 13 , 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 .0 .1 0* 2.4 .7 343
COTTONWOOD CREEK 7670 .1 .0 * 3.6 1.0 360
GRAND TARGHEE 9260 2.4 -M * 3.5 -M *
GRANITE CREEK 6770 .0 .0 100* 1.7 .6 283
GRASSY LAKE 7265 .1 .2 50* 3.9 1.2 325
GROS VENTRE SUMMIT 8750 .2 .5 40* 1.3 .7 186
GUNSIGHT PASS 9820 .8 -M * 1.6 -M *
LEWIS LAKE DIVIDE 7850 .9 .0 * 3.1 1.0 310
PHILLIPS BENCH 8200 .0 .1 0* 1.6 .8 200
SALT RIVER SUMMIT 7760 -M .0 * -M .7 *
SNAKE RIVER STATION 6920 .0 .0 100* 2.5 .8 313
SPRING CREEK DIVIDE 9000 1.7 .2 850* 2.8 .8 350
THUMB DIVIDE 7980 .0 .1 0* 1.4 .8 175
TOGWOTEE PASS 9580 1.2 .8 150* 2.1 1.0 210
TWO OCEAN PLATEAU 9240 2.5 1.0 250* 2.5 1.1 227
WILLOW CREEK 8380 .6 .3 200* 3.4 1.4 243
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Basin wide percent of average 221* 271
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .9 1.1 82* 1.3 .8 163
BLACK BEAR 8170 2.3 .7 329* 4.2 1.1 382
CANYON 7870 .0 .2 0* 1.0 .6 167
FISHER CREEK 9100 1.5 .8 188* 2.4 1.1 218
MADISON PLATEAU 7750 .0 .4 0* 3.2 1.0 320
NORTHEAST ENTRANCE 7350 .0 .0 100* .8 .6 133
PARKER PEAK 9400 1.0 1.0 100* 1.4 1.0 140
SYLVAN LAKE 8420 .9 .6 150* 2.4 1.0 240
THUMB DIVIDE 7980 .0 .1 0* 1.4 .8 175
TWO OCEAN PLATEAU 9240 2.5 1.0 250* 2.5 1.1 227
WHISKEY CREEK 6800 .0 .1 0* 2.9 .7 414
WHITE MILL 8700 1.3 .6 217* 1.8 1.0 180
WOLVERINE 7650 .0 .1 0* .7 .8 88
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Basin wide percent of average 155* 224
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 .7 186
DEER PARK 9700 1.0 .8 125* 2.1 .8 263
HOBBS PARK 10100 2.0 .7 286* 2.2 .8 275
LITTLE WARM 9370 .0 .3 0* .9 .7 129
SOUTH PASS 9040 1.3 .4 325* 2.0 .7 286
ST. LAWRENCE ALT 8620 .0 .1 0* .9 .7 129
TOGWOTEE PASS 9580 1.2 .8 150* 2.1 1.0 210
TOWNSEND CREEK 8700 1.0 .2 500* 2.0 .8 250
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Basin wide percent of average 195* 213
BIGHORN BASIN
BALD MTN. 9380 2.4 1.4 171* 2.5 1.0 250
BEAR TRAP MEADOW 8200 .9 .1 900* 1.0 .7 143
BLACKWATER 9780 2.0 1.3 154* 2.0 1.0 200
BONE SPRINGS DIV 9350 2.6 1.1 236* 3.0 1.1 273
EVENING STAR 9200 .9 1.0 90* 1.7 1.0 170
GRAVE SPRINGS 8550 .8 .3 267* 1.4 .9 156
KIRWIN 9550 1.5 .8 188* 2.1 .7 300
MARQUETTE 8760 .7 -M * 2.4 .9 267
MIDDLE POWDER 7760 1.5 .5 300* 3.1 1.0 310
OWL CREEK 8975 1.2 .4 300* 1.2 .5 240
POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .8 263
SHELL CREEK 9580 3.0 1.5 200* 2.8 .8 350
SYLVAN LAKE 8420 .9 .6 150* 2.4 1.0 240
SYLVAN ROAD 7120 .0 .0 100* .9 .6 150
TIMBER CREEK 7950 .0 .1 0* 2.8 .6 467
YOUNTS PEAK 8350 .0 .5 0* 1.5 .7 214
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Basin wide percent of average 193* 247
SHOSHONE RIVER
BLACKWATER 9780 2.0 1.3 154* 2.0 1.0 200
EVENING STAR 9200 .9 1.0 90* 1.7 1.0 170
KIRWIN 9550 1.5 .8 188* 2.1 .7 300
MARQUETTE 8760 .7 -M * 2.4 .9 267
SYLVAN LAKE 8420 .9 .6 150* 2.4 1.0 240
SYLVAN ROAD 7120 .0 .0 100* .9 .6 150
YOUNTS PEAK 8350 .0 .5 0* 1.5 .7 214
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Basin wide percent of average 126* 220
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .1 900* 1.0 .7 143
BIG GOOSE 7990 1.5 .3 500* 3.1 .9 344
BONE SPRINGS DIV 9350 2.6 1.1 236* 3.0 1.1 273
BURGESS JUNCTION 7880 1.4 .6 233* 3.2 .9 356
CLOUD PEAK RESERVOIR 9860 1.8 .4 450* 2.7 1.1 245
DOME LAKE 8880 2.1 .7 300* 3.3 1.0 330
GRAVE SPRINGS 8550 .8 .3 267* 1.4 .9 156
HANSEN SAWMILL 8360 .0 .2 0* 1.3 .7 186
LITTLE GOOSE 8870 1.8 -M * 3.4 -M *
MIDDLE POWDER 7760 1.5 .5 300* 3.1 1.0 310
POWDER RIVER PASS 9480 1.6 .4 400* 2.1 .8 263
SOLDIER PARK 8720 .5 -M * 2.0 -M *
SUCKER CREEK 8880 2.4 .5 480* 3.1 1.0 310
TIE CREEK 6870 .0 .0 100* 3.7 1.1 336
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Basin wide percent of average 325* 277
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* .7 1.0 70
COLE CANYON 5910 .0 .2 0* 1.2 .7 171
NORTH RAPID CREEK 6130 .0 .1 0* .4 1.0 40
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Basin wide percent of average 0* 85
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 1.6 -M * 2.4 -M *
CINNABAR PARK 9574 1.2 .2 600* 1.9 .8 238
COLUMBINE 9160 .0 .0 100* 1.1 .8 138
DIVIDE PEAK 8880 .6 .6 100* 1.9 1.0 190
ELK RIVER 8700 .0 .1 0* 1.4 .8 175
JOE WRIGHT 10120 -M .7 * -M 1.3 *
NORTH FRENCH CREEK 10130 1.5 1.2 125* 2.0 1.1 182
OLD BATTLE 10000 1.7 1.0 170* 2.2 1.2 183
SAGE CREEK BASIN 7850 .0 .2 0* 1.3 .6 217
SOUTH BRUSH CREEK 8440 .1 .1 100* 1.5 .9 167
TOWER 10500 1.0 .8 125* 2.0 1.2 167
WEBBER SPRINGS 9250 .9 .4 225* 2.1 1.1 191
WILLOW CREEK PASS 9540 .6 .3 200* .7 .7 100
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Basin wide percent of average 155* 177
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.2 .8 150* 2.0 .9 222
CASPER MTN. 7900 2.4 .5 480* 3.5 .9 389
DEADMAN HILL 10220 .8 .8 100* 1.5 .9 167
DEER PARK 9700 1.0 .8 125* 2.1 .8 263
LAPRELE CREEK 8375 .3 .2 150* 1.7 .7 243
RENO HILL 8400 1.9 .6 317* 2.3 .9 256
ROACH 9700 1.4 .2 700* 1.9 .9 211
SAND LAKE 10050 1.9 1.1 173* 2.1 1.1 191
SOUTH PASS 9040 1.3 .4 325* 2.0 .7 286
WINDY PEAK 7900 .2 .1 200* 1.1 .6 183
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Basin wide percent of average 225* 240
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * .9 .6 150
DIVIDE PEAK 8880 .6 .6 100* 1.9 1.0 190
OLD BATTLE 10000 1.7 1.0 170* 2.2 1.2 183
SANDSTONE RS 8150 -M .0 * 1.0 .8 125
WHISKEY PARK 8950 .0 .4 0* 1.8 1.1 164
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Basin wide percent of average 120* 166
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.0 .3 333* 1.7 .7 243
BLIND BULL SUM 8650 1.3 .3 433* 1.3 .7 186
EAST RIM DIVIDE 7930 .2 .0 * 1.4 .5 280
ELKHART PARK G.S. 9400 1.0 .2 500* 2.1 .8 263
GROS VENTRE SUMMIT 8750 .2 .5 40* 1.3 .7 186
GUNSIGHT PASS 9820 .8 -M * 1.6 -M *
KENDALL R.S. 7740 .0 .0 100* 1.7 .6 283
LOOMIS PARK 8240 .1 .2 50* 1.7 .7 243
NEW FORK LAKE 8340 .2 .0 * 1.8 .6 300
POCKET CREEK 9360 1.5 -M * 2.4 -M *
SNIDER BASIN 8060 .1 .1 100* 1.5 .5 300
SPRING CREEK DIVIDE 9000 1.7 .2 850* 2.8 .8 350
TRIPLE PEAK 8500 .1 .2 50* 2.2 .8 275
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Basin wide percent of average 295* 264
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * 2.1 .5 420
HEWINTA 9519 -M .3 * 2.3 .9 256
HICKERSON PARK 9145 -M .0 * -M .6 *
HOLE-IN-ROCK 9150 .8 .0 * 2.6 .7 371
INDIAN CREEK 9425 2.1 .3 700* 2.6 .8 325
KELLEY R.S. 8180 .7 .1 700* 2.5 .7 357
STEEL CREEK PARK 10200 -M .7 * -M .8 *
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Basin wide percent of average 925* 336
UPPER BEAR RIVER
BUG LAKE 7950 -M .4 * -M .9 *
HAYDEN FORK 9212 .1 .3 33* 3.5 .9 389
KELLEY R.S. 8180 .7 .1 700* 2.5 .7 357
LILY LAKE 9156 -M .4 * 2.3 .9 256
MONTE CRISTO 8960 -M .6 * -M 1.0 *
SALT RIVER SUMMIT 7760 -M .0 * -M .7 *
TRIAL LAKE 9992 1.2 .7 171* 2.2 1.0 220
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Basin wide percent of average 182* 300
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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.