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 FRIDAY: OCTOBER 14 , 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 .1 100* 2.3 .8 288
COTTONWOOD CREEK 7670 .0 .0 100* 3.6 1.1 327
GRAND TARGHEE 9260 2.4 -M * 3.7 -M *
GRANITE CREEK 6770 .0 .1 0* 1.7 .7 243
GRASSY LAKE 7265 .1 .2 50* 4.1 1.3 315
GROS VENTRE SUMMIT 8750 .1 .5 20* 1.7 .8 213
GUNSIGHT PASS 9820 .9 -M * 1.8 -M *
LEWIS LAKE DIVIDE 7850 .5 .0 * 3.1 1.1 282
PHILLIPS BENCH 8200 .1 .2 50* 1.7 .9 189
SALT RIVER SUMMIT 7760 .1 .0 * 1.9 .7 271
SNAKE RIVER STATION 6920 .1 .0 * 2.5 .9 278
SPRING CREEK DIVIDE 9000 1.7 .3 567* 2.9 .9 322
THUMB DIVIDE 7980 .0 .1 0* 1.5 .8 188
TOGWOTEE PASS 9580 1.3 .9 144* 2.1 1.1 191
TWO OCEAN PLATEAU 9240 2.6 1.1 236* 2.6 1.2 217
WILLOW CREEK 8380 .4 .4 100* 3.4 1.5 227
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Basin wide percent of average 182* 254
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 1.0 1.2 83* 1.4 .8 175
BLACK BEAR 8170 2.2 .7 314* 4.3 1.2 358
CANYON 7870 .0 .2 0* 1.3 .7 186
FISHER CREEK 9100 1.6 .9 178* 2.6 1.2 217
MADISON PLATEAU 7750 .0 .4 0* 3.3 1.0 330
NORTHEAST ENTRANCE 7350 .0 .0 100* .9 .7 129
PARKER PEAK 9400 1.1 1.1 100* 1.6 1.0 160
SYLVAN LAKE 8420 .8 .7 114* 2.4 1.0 240
THUMB DIVIDE 7980 .0 .1 0* 1.5 .8 188
TWO OCEAN PLATEAU 9240 2.6 1.1 236* 2.6 1.2 217
WHISKEY CREEK 6800 .0 .1 0* 3.1 .8 388
WHITE MILL 8700 1.4 .7 200* 1.9 1.1 173
WOLVERINE 7650 .0 .1 0* .7 .8 88
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Basin wide percent of average 147* 224
WIND RIVER
BURROUGHS CREEK 8750 .0 .3 0* 1.1 .7 157
CASTLE CREEK 8400 .0 -M * 1.0 -M *
COLD SPRINGS 9630 .5 .2 250* 1.4 .7 200
DEER PARK 9700 1.1 .8 138* 2.3 .9 256
HOBBS PARK 10100 1.9 .7 271* 2.3 .9 256
LITTLE WARM 9370 .0 .3 0* 1.1 .7 157
SOUTH PASS 9040 1.3 .4 325* 2.1 .8 263
ST. LAWRENCE ALT 8620 .0 .1 0* .9 .7 129
TOGWOTEE PASS 9580 1.3 .9 144* 2.1 1.1 191
TOWNSEND CREEK 8700 1.0 .3 333* 2.1 .9 233
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Basin wide percent of average 178* 208
BIGHORN BASIN
BALD MTN. 9380 2.4 1.5 160* 2.5 1.1 227
BEAR TRAP MEADOW 8200 .9 .2 450* 1.0 .8 125
BLACKWATER 9780 2.1 1.4 150* 2.2 1.1 200
BONE SPRINGS DIV 9350 2.6 1.2 217* 3.0 1.1 273
EVENING STAR 9200 1.0 1.1 91* 1.9 1.1 173
GRAVE SPRINGS 8550 .8 .2 400* 1.4 1.0 140
KIRWIN 9550 1.5 .8 188* 2.2 .7 314
MARQUETTE 8760 .5 -M * 2.5 1.0 250
MIDDLE POWDER 7760 1.5 .5 300* 3.1 1.1 282
OWL CREEK 8975 1.3 .3 433* 1.2 .5 240
POWDER RIVER PASS 9480 1.5 .5 300* 2.2 .9 244
SHELL CREEK 9580 3.1 1.5 207* 2.8 .9 311
SYLVAN LAKE 8420 .8 .7 114* 2.4 1.0 240
SYLVAN ROAD 7120 .0 .0 100* .9 .7 129
TIMBER CREEK 7950 .0 .1 0* 2.8 .7 400
YOUNTS PEAK 8350 .0 .5 0* 1.5 .8 188
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Basin wide percent of average 186* 232
SHOSHONE RIVER
BLACKWATER 9780 2.1 1.4 150* 2.2 1.1 200
EVENING STAR 9200 1.0 1.1 91* 1.9 1.1 173
KIRWIN 9550 1.5 .8 188* 2.2 .7 314
MARQUETTE 8760 .5 -M * 2.5 1.0 250
SYLVAN LAKE 8420 .8 .7 114* 2.4 1.0 240
SYLVAN ROAD 7120 .0 .0 100* .9 .7 129
YOUNTS PEAK 8350 .0 .5 0* 1.5 .8 188
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Basin wide percent of average 120* 213
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .2 450* 1.0 .8 125
BIG GOOSE 7990 1.4 .3 467* 3.1 1.0 310
BONE SPRINGS DIV 9350 2.6 1.2 217* 3.0 1.1 273
BURGESS JUNCTION 7880 1.4 .6 233* 3.2 1.0 320
CLOUD PEAK RESERVOIR 9860 1.7 .4 425* 2.8 1.2 233
DOME LAKE 8880 2.0 .7 286* 3.3 1.1 300
GRAVE SPRINGS 8550 .8 .2 400* 1.4 1.0 140
HANSEN SAWMILL 8360 .0 .1 0* 1.3 .8 163
LITTLE GOOSE 8870 1.7 -M * 3.4 -M *
MIDDLE POWDER 7760 1.5 .5 300* 3.1 1.1 282
POWDER RIVER PASS 9480 1.5 .5 300* 2.2 .9 244
SOLDIER PARK 8720 .5 -M * 2.0 -M *
SUCKER CREEK 8880 2.3 .5 460* 3.1 1.1 282
TIE CREEK 6870 .0 .0 100* 3.7 1.2 308
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Basin wide percent of average 310* 254
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* .7 1.1 64
COLE CANYON 5910 .0 .2 0* 1.2 .8 150
NORTH RAPID CREEK 6130 .0 .1 0* .4 1.1 36
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Basin wide percent of average 0* 77
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 1.7 -M * 2.5 -M *
CINNABAR PARK 9574 1.2 .2 600* 1.9 .9 211
COLUMBINE 9160 .0 .0 100* 1.2 .8 150
DIVIDE PEAK 8880 .3 .7 43* 1.9 1.1 173
ELK RIVER 8700 .0 .1 0* 1.4 .9 156
JOE WRIGHT 10120 .0 .7 0* 1.5 1.4 107
NORTH FRENCH CREEK 10130 1.5 1.3 115* 2.1 1.2 175
OLD BATTLE 10000 1.7 1.0 170* 2.3 1.3 177
SAGE CREEK BASIN 7850 .0 .3 0* 1.3 .6 217
SOUTH BRUSH CREEK 8440 .1 .2 50* 1.6 1.0 160
TOWER 10500 1.0 .9 111* 2.1 1.3 162
WEBBER SPRINGS 9250 .8 .5 160* 2.1 1.2 175
WILLOW CREEK PASS 9540 .4 .3 133* -M .8 *
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Basin wide percent of average 113* 166
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.2 .8 150* 2.0 .9 222
CASPER MTN. 7900 2.1 .6 350* 3.5 1.0 350
DEADMAN HILL 10220 .9 .9 100* 1.5 1.0 150
DEER PARK 9700 1.1 .8 138* 2.3 .9 256
LAPRELE CREEK 8375 .3 .2 150* 1.8 .7 257
RENO HILL 8400 1.8 .7 257* 2.4 1.0 240
ROACH 9700 1.4 .3 467* 1.9 .9 211
SAND LAKE 10050 1.9 1.2 158* 2.0 1.2 167
SOUTH PASS 9040 1.3 .4 325* 2.1 .8 263
WINDY PEAK 7900 .1 .1 100* 1.1 .7 157
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Basin wide percent of average 202* 226
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * 1.0 .7 143
DIVIDE PEAK 8880 .3 .7 43* 1.9 1.1 173
OLD BATTLE 10000 1.7 1.0 170* 2.3 1.3 177
SANDSTONE RS 8150 .0 .0 100* 1.0 .9 111
WHISKEY PARK 8950 .1 .5 20* 1.9 1.2 158
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Basin wide percent of average 100* 156
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.0 .4 250* 1.8 .7 257
BLIND BULL SUM 8650 1.2 .4 300* 1.3 .8 163
EAST RIM DIVIDE 7930 .2 .0 * 1.4 .6 233
ELKHART PARK G.S. 9400 1.0 .2 500* 2.2 .8 275
GROS VENTRE SUMMIT 8750 .1 .5 20* 1.7 .8 213
GUNSIGHT PASS 9820 .9 -M * 1.8 -M *
KENDALL R.S. 7740 .1 .0 * 1.8 .6 300
LOOMIS PARK 8240 .1 .2 50* 1.7 .7 243
NEW FORK LAKE 8340 .1 .0 * 1.8 .6 300
POCKET CREEK 9360 1.5 -M * 2.4 -M *
SNIDER BASIN 8060 .1 .1 100* 1.5 .6 250
SPRING CREEK DIVIDE 9000 1.7 .3 567* 2.9 .9 322
TRIPLE PEAK 8500 .1 .2 50* 2.2 .9 244
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Basin wide percent of average 248* 254
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 * 2.1 .6 350
HEWINTA 9519 .0 .4 0* 2.4 1.0 240
HICKERSON PARK 9145 -M .0 * -M .7 *
HOLE-IN-ROCK 9150 .8 .0 * 2.6 .7 371
INDIAN CREEK 9425 2.1 .4 525* 2.8 .9 311
KELLEY R.S. 8180 .5 .2 250* 2.5 .8 313
STEEL CREEK PARK 10200 -M .7 * -M .9 *
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Basin wide percent of average 360* 310
UPPER BEAR RIVER
BUG LAKE 7950 -M .5 * -M .9 *
HAYDEN FORK 9212 .1 .3 33* 3.5 1.0 350
KELLEY R.S. 8180 .5 .2 250* 2.5 .8 313
LILY LAKE 9156 .0 .4 0* 2.3 .9 256
MONTE CRISTO 8960 -M .6 * -M 1.1 *
SALT RIVER SUMMIT 7760 .1 .0 * 1.9 .7 271
TRIAL LAKE 9992 1.2 .8 150* 2.2 1.1 200
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Basin wide percent of average 112* 276
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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.