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 TUESDAY: OCTOBER 11 , 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 .1 .1 100* 1.3 .7 186
COTTONWOOD CREEK 7600 .2 .1 200* 1.8 1.0 180
GRANITE CREEK 6770 .0 .1 0* .6 .6 100
GRASSY LAKE 7265 .5 .2 250* 2.1 1.1 191
GROS VENTRE SUMMIT 8750 .7 .4 175* 1.2 .6 200
LEWIS LAKE DIVIDE 7850 .1 .1 100* 1.5 1.1 136
PHILLIPS BENCH 8200 .0 .1 0* 1.1 .8 138
SALT RIVER SUMMIT 7600 .0 .0 100* .8 .6 133
SNAKE RIVER STATION 6920 .0 .0 100* 1.2 .7 171
SPRING CREEK DIVIDE 9000 .3 .2 150* .5 .9 56
THUMB DIVIDE 7980 .0 .1 0* 1.3 .7 186
TOGWOTEE PASS 9580 1.5 .7 214* 2.0 .9 222
TWO OCEAN PLATEAU 9240 1.6 .9 178* 2.1 1.0 210
WILLOW CREEK 8450 .9 .3 300* 2.6 1.2 217
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Basin wide percent of average 179* 169
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 -M 1.0 * -M .7 *
BLACK BEAR 8170 1.8 .7 257* 2.5 1.2 208
CANYON 8090 .6 .2 300* 1.0 .6 167
FISHER CREEK 9100 1.1 .8 138* 1.1 1.1 100
MADISON PLATEAU 7750 1.0 .3 333* 1.8 .8 225
NORTHEAST ENTRANCE 7350 .0 .1 0* .7 .5 140
PARKER PEAK 9400 1.2 1.0 120* 1.3 .8 162
SYLVAN LAKE 8420 .8 .8 100* 1.9 .9 211
THUMB DIVIDE 7980 .0 .1 0* 1.3 .7 186
TWO OCEAN PLATEAU 9240 1.6 .9 178* 2.1 1.0 210
WHISKEY CREEK 6800 .2 .1 200* 1.1 .7 157
WHITE MILL 8700 .8 .6 133* 1.0 .9 111
WOLVERINE 7650 .1 .1 100* .7 .6 117
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Basin wide percent of average 161* 168
WIND RIVER
BURROUGHS CREEK 8750 .9 .3 300* 1.4 .5 280
COLD SPRINGS 9630 1.1 .2 550* 2.0 .6 333
DEER PARK 9700 .6 .7 86* 1.2 .8 150
HOBBS PARK 10100 1.1 .6 183* 2.1 .7 300
LITTLE WARM 9370 1.4 .3 467* 1.9 .6 317
SOUTH PASS 9040 .6 .3 200* 1.5 .7 214
ST. LAWRENCE ALT 8620 .3 .1 300* 1.8 .6 300
TOGWOTEE PASS 9580 1.5 .7 214* 2.0 .9 222
TOWNSEND CREEK 8700 .8 .2 400* 2.2 .7 314
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Basin wide percent of average 244* 264
BIGHORN BASIN
BALD MTN. 9380 1.9 1.2 158* 1.9 .8 237
BEAR TRAP MEADOW 8200 .4 .2 200* 1.9 .6 317
BLACKWATER 9780 .8 1.2 67* 1.3 .9 144
BONE SPRINGS DIV 9350 1.9 1.1 173* 2.0 .8 250
EVENING STAR 9200 .9 1.0 90* 1.5 .9 167
GRAVE SPRINGS 8550 .8 .2 400* 2.2 .7 314
KIRWIN 9550 1.2 .7 171* 1.3 .6 217
MARQUETTE 8760 .6 .8 75* 1.9 .8 237
MIDDLE POWDER 7760 1.4 .5 280* 2.2 .9 244
OWL CREEK 8975 1.8 .3 600* 1.7 .4 425
POWDER RIVER PASS 9480 .9 .4 225* 1.5 .6 250
SHELL CREEK 9580 1.8 1.3 138* 2.0 .7 286
SYLVAN LAKE 8420 .8 .8 100* 1.9 .9 211
SYLVAN ROAD 7120 .2 .1 200* 1.3 .7 186
TIMBER CREEK 7950 .5 .1 500* 1.7 .5 340
YOUNTS PEAK 8350 .0 .5 0* 2.1 .6 350
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Basin wide percent of average 153* 249
SHOSHONE RIVER
BLACKWATER 9780 .8 1.2 67* 1.3 .9 144
EVENING STAR 9200 .9 1.0 90* 1.5 .9 167
KIRWIN 9550 1.2 .7 171* 1.3 .6 217
MARQUETTE 8760 .6 .8 75* 1.9 .8 237
SYLVAN LAKE 8420 .8 .8 100* 1.9 .9 211
SYLVAN ROAD 7120 .2 .1 200* 1.3 .7 186
YOUNTS PEAK 8350 .0 .5 0* 2.1 .6 350
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Basin wide percent of average 88* 209
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 .2 200* 1.9 .6 317
BIG GOOSE 7990 .7 .2 350* 2.0 .7 286
BONE SPRINGS DIV 9350 1.9 1.1 173* 2.0 .8 250
BURGESS JUNCTION 7880 1.1 .5 220* 2.1 .7 300
CLOUD PEAK RESERVOIR 9860 1.0 .3 333* 2.4 .9 267
DOME LAKE 8880 1.3 .6 217* 2.2 .8 275
GRAVE SPRINGS 8550 .8 .2 400* 2.2 .7 314
HANSEN SAWMILL 8360 .5 .2 250* 1.9 .6 317
MIDDLE POWDER 7760 1.4 .5 280* 2.2 .9 244
POWDER RIVER PASS 9480 .9 .4 225* 1.5 .6 250
SUCKER CREEK 8880 1.8 .4 450* 2.1 .8 262
TIE CREEK 6870 .4 .0 * 2.6 .8 325
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Basin wide percent of average 257* 282
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* 1.1 .9 122
COLE CANYON 5910 .0 .0 100* 1.5 -M *
NORTH RAPID CREEK 6130 .0 .1 0* 1.2 .8 150
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Basin wide percent of average 0* 135
UPPER N. PLATTE RIVER
COLUMBINE 9160 .9 .0 * 2.4 .8 300
DIVIDE PEAK 8860 .9 .5 180* 2.9 .9 322
ELK RIVER 8700 .0 .1 0* 2.1 .7 300
JOE WRIGHT 10120 .7 .6 117* 2.0 1.1 182
NORTH FRENCH CREEK 10130 .4 1.0 40* 1.6 1.1 145
OLD BATTLE 9920 -M .8 * -M 1.2 *
SAGE CREEK BASIN 7850 .5 .2 250* 1.5 .5 300
SOUTH BRUSH CREEK 8440 .1 .1 100* 1.5 .9 167
TOWER 10500 1.5 .7 214* 3.1 1.3 238
WEBBER SPRINGS 9250 1.5 .4 375* 3.7 1.0 370
WILLOW CREEK PASS 9540 .6 .2 300* 1.5 .7 214
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Basin wide percent of average 163* 248
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .4 .7 57* .8 .8 100
CASPER MTN. 7850 1.0 .4 250* 1.2 .8 150
DEADMAN HILL 10220 .6 .7 86* 1.9 .8 237
DEER PARK 9700 .6 .7 86* 1.2 .8 150
LAPRELE CREEK 8375 .0 .2 0* .6 .6 100
RENO HILL 8500 1.2 .5 240* 1.9 .8 237
ROACH 9700 1.7 .2 850* 2.4 .8 300
SAND LAKE 10050 1.6 1.0 160* 2.2 1.0 220
SOUTH PASS 9040 .6 .3 200* 1.5 .7 214
WINDY PEAK 7900 .2 .1 200* 1.3 .6 217
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Basin wide percent of average 165* 195
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* 1.3 .6 217
DIVIDE PEAK 8860 .9 .5 180* 2.9 .9 322
OLD BATTLE 9920 -M .8 * -M 1.2 *
SANDSTONE RS 8150 .0 .1 0* 1.5 .8 188
WHISKEY PARK 8950 .5 .4 125* 2.1 1.0 210
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Basin wide percent of average 140* 236
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .6 .3 200* 1.3 .6 217
BLIND BULL SUM 8900 .5 .3 167* .8 .7 114
EAST RIM DIVIDE 7930 .0 .0 100* .4 .5 80
ELKHART PARK G.S. 9400 .7 .1 700* .9 .6 150
GROS VENTRE SUMMIT 8750 .7 .4 175* 1.2 .6 200
KENDALL R.S. 7740 .0 .0 100* .8 .5 160
LOOMIS PARK 8240 .0 .1 0* .4 .6 67
NEW FORK LAKE 8340 .0 .0 100* .6 .5 120
SNIDER BASIN 8060 .0 .1 0* .4 .5 80
SPRING CREEK DIVIDE 9000 .3 .2 150* .5 .9 56
TRIPLE PEAK 8500 .1 .1 100* .7 .7 100
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Basin wide percent of average 181* 119
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .6 .5 120
HEWINTA 9500 .0 .3 0* .8 .8 100
HICKERSON PARK 9100 .3 .0 * .7 .6 117
HOLE-IN-ROCK 9150 .0 .0 100* .8 .5 160
INDIAN CREEK 9425 .7 .3 233* .9 .9 100
KELLEY R.S. 8180 .0 .1 0* .8 .7 114
STEEL CREEK PARK 10100 .5 .7 71* 1.0 .8 125
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Basin wide percent of average 86* 117
UPPER BEAR RIVER
BUG LAKE 7950 .0 .4 0* .6 .8 75
HAYDEN FORK 9100 .0 .3 0* .4 .8 50
KELLEY R.S. 8180 .0 .1 0* .8 .7 114
LILY LAKE 9050 .0 .3 0* .5 .8 62
MONTE CRISTO 8960 .1 .6 17* .8 .9 89
SALT RIVER SUMMIT 7600 .0 .0 100* .8 .6 133
TRIAL LAKE 9960 .0 .7 0* .4 .9 44
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Basin wide percent of average 4* 78
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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.