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 SATURDAY: OCTOBER 7 , 2006
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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 * 1.0 .4 250
COTTONWOOD CREEK 7600 .0 .0 100* .7 .6 117
GRANITE CREEK 6770 .2 .0 * 1.2 .3 400
GRASSY LAKE 7265 .2 .1 200* 1.7 .7 243
GROS VENTRE SUMMIT 8750 .2 .3 67* .8 .4 200
LEWIS LAKE DIVIDE 7850 -M .0 * 1.3 .6 217
PHILLIPS BENCH 8200 .0 .1 0* 1.4 .5 280
SALT RIVER SUMMIT 7600 .0 .0 100* .7 .4 175
SNAKE RIVER STATION 6920 .1 .0 * 1.1 .4 275
SPRING CREEK DIVIDE 9000 .0 .1 0* .9 .5 180
THUMB DIVIDE 7980 .1 .0 * .9 .4 225
TOGWOTEE PASS 9580 .1 .4 25* .5 .6 83
TWO OCEAN PLATEAU 9240 .1 .5 20* .9 .6 150
WILLOW CREEK 8450 .1 .2 50* .9 .7 129
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Basin wide percent of average 41* 197
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .1 .8 12* .8 .4 200
BLACK BEAR 8170 .4 .5 80* 1.8 .7 257
CANYON 8090 .2 .1 200* 1.2 .4 300
FISHER CREEK 9100 .2 .6 33* 1.2 .7 171
MADISON PLATEAU 7750 .3 .3 100* 1.4 .5 280
NORTHEAST ENTRANCE 7350 .1 .0 * 1.4 .3 467
PARKER PEAK 9400 .3 .8 37* .8 .5 160
SYLVAN LAKE 8420 .1 .6 17* 1.4 .5 280
THUMB DIVIDE 7980 .1 .0 * .9 .4 225
TWO OCEAN PLATEAU 9240 .1 .5 20* .9 .6 150
WHISKEY CREEK 6800 .2 .1 200* -M .4 *
WHITE MILL 8700 .1 .4 25* 1.3 .5 260
WOLVERINE 7650 .1 .0 * .7 .4 175
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Basin wide percent of average 43* 234
WIND RIVER
BURROUGHS CREEK 8750 .2 .2 100* .4 .3 133
COLD SPRINGS 9630 .1 .2 50* .2 .4 50
DEER PARK 9700 .2 .5 40* .9 .5 180
HOBBS PARK 10100 .1 .5 20* .3 .4 75
LITTLE WARM 9370 .2 .3 67* .7 .3 233
SOUTH PASS 9040 .0 .2 0* .8 .4 200
ST. LAWRENCE ALT 8620 .2 .1 200* .2 .3 67
TOGWOTEE PASS 9580 .1 .4 25* .5 .6 83
TOWNSEND CREEK 8700 .3 .1 300* .7 .4 175
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Basin wide percent of average 56* 131
BIGHORN BASIN
BALD MTN. 9380 1.0 1.0 100* .3 .5 60
BEAR TRAP MEADOW 8200 .0 .1 0* .2 .3 67
BLACKWATER 9780 .2 1.0 20* .5 .5 100
BONE SPRINGS DIV 9350 1.6 .8 200* .4 .5 80
EVENING STAR 9200 .4 .7 57* .9 .6 150
GRAVE SPRINGS 8550 .0 .1 0* .1 .4 25
KIRWIN 9550 .2 .6 33* .6 .4 150
MARQUETTE 8760 .1 .6 17* .3 .5 60
MIDDLE POWDER 7760 .3 .4 75* .1 .5 20
OWL CREEK 8975 .1 .2 50* .2 .2 100
POWDER RIVER PASS 9480 .3 .4 75* .4 .4 100
SHELL CREEK 9580 2.5 1.1 227* .2 .4 50
SYLVAN LAKE 8420 .1 .6 17* 1.4 .5 280
SYLVAN ROAD 7120 .2 .0 * .9 .4 225
TIMBER CREEK 7950 .0 .0 100* .2 .3 67
YOUNTS PEAK 8350 .1 .3 33* 1.5 .4 375
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Basin wide percent of average 87* 121
SHOSHONE RIVER
BLACKWATER 9780 .2 1.0 20* .5 .5 100
EVENING STAR 9200 .4 .7 57* .9 .6 150
KIRWIN 9550 .2 .6 33* .6 .4 150
MARQUETTE 8760 .1 .6 17* .3 .5 60
SYLVAN LAKE 8420 .1 .6 17* 1.4 .5 280
SYLVAN ROAD 7120 .2 .0 * .9 .4 225
YOUNTS PEAK 8350 .1 .3 33* 1.5 .4 375
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Basin wide percent of average 29* 185
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0* .2 .3 67
BIG GOOSE 7990 .1 .1 100* .1 .4 25
BONE SPRINGS DIV 9350 1.6 .8 200* .4 .5 80
BURGESS JUNCTION 7880 .0 .4 0* .3 .4 75
CLOUD PEAK RESERVOIR 9860 .3 .2 150* .1 .5 20
DOME LAKE 8880 .1 .5 20* .1 .5 20
GRAVE SPRINGS 8550 .0 .1 0* .1 .4 25
HANSEN SAWMILL 8360 .4 .1 400* .0 .4 0
MIDDLE POWDER 7760 .3 .4 75* .1 .5 20
POWDER RIVER PASS 9480 .3 .4 75* .4 .4 100
SUCKER CREEK 8880 .1 .3 33* .3 .5 60
TIE CREEK 6870 .0 .0 100* .2 .5 40
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Basin wide percent of average 94* 43
BELLE FOURCHE
BLIND PARK 6890 -M .0 * .0 .5 0
COLE CANYON 5910 .0 .0 100* .1 -M *
NORTH RAPID CREEK 6130 .0 .0 100* .0 .5 0
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Basin wide percent of average * 0
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 .0 * .7 .5 140
DIVIDE PEAK 8860 .1 .4 25* 1.0 .5 200
ELK RIVER 8700 .3 .0 * .4 .4 100
JOE WRIGHT 10120 .0 .4 0* .4 .7 57
NORTH FRENCH CREEK 10130 .2 .7 29* .9 .7 129
OLD BATTLE 9920 .2 .6 33* .9 .7 129
SAGE CREEK BASIN 7850 .4 .1 400* .8 .3 267
SOUTH BRUSH CREEK 8440 .1 .1 100* .6 .5 120
TOWER 10500 .2 .5 40* 1.0 .8 125
WEBBER SPRINGS 9250 .1 .3 33* .5 .6 83
WILLOW CREEK PASS 9540 .1 .1 100* .0 .4 0
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Basin wide percent of average 44* 118
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .3 .5 60* .3 .5 60
CASPER MTN. 7850 .3 .3 100* .0 .5 0
DEADMAN HILL 10220 -M .5 * .2 .5 40
DEER PARK 9700 .2 .5 40* .9 .5 180
LAPRELE CREEK 8375 .2 .1 200* .2 .4 50
RENO HILL 8500 .0 .3 0* .2 .5 40
ROACH 9700 .1 .1 100* .4 .5 80
SAND LAKE 10050 .3 .8 37* .8 .6 133
SOUTH PASS 9040 .0 .2 0* .8 .4 200
WINDY PEAK 7900 .2 .0 * .4 .3 133
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Basin wide percent of average 50* 89
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .3 .0 * .7 .4 175
DIVIDE PEAK 8860 .1 .4 25* 1.0 .5 200
OLD BATTLE 9920 .2 .6 33* .9 .7 129
SANDSTONE RS 8150 .1 .0 * -M .5 *
WHISKEY PARK 8950 .0 .2 0* .6 .6 100
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Basin wide percent of average 25* 145
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .2 50* .9 .4 225
BLIND BULL SUM 8900 .1 .2 50* .8 .4 200
EAST RIM DIVIDE 7930 .0 .0 100* .9 .3 300
ELKHART PARK G.S. 9400 .0 .1 0* 1.0 .4 250
GROS VENTRE SUMMIT 8750 .2 .3 67* .8 .4 200
KENDALL R.S. 7740 .1 .0 * 1.1 .3 367
LOOMIS PARK 8240 .1 .1 100* .8 .4 200
NEW FORK LAKE 8340 .1 .0 * 1.5 .3 500
SNIDER BASIN 8060 .1 .0 * .7 .3 233
SPRING CREEK DIVIDE 9000 .0 .1 0* .9 .5 180
TRIPLE PEAK 8500 .2 .1 200* .9 .4 225
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Basin wide percent of average 64* 251
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .8 .3 267
HEWINTA 9500 .1 .2 50* .9 .5 180
HICKERSON PARK 9100 .1 .0 * .2 .3 67
HOLE-IN-ROCK 9150 .0 .0 100* .4 .3 133
INDIAN CREEK 9425 .0 .2 0* .9 .5 180
KELLEY R.S. 8180 .1 .1 100* .8 .4 200
STEEL CREEK PARK 10100 .9 .5 180* .8 .5 160
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Basin wide percent of average 110* 171
UPPER BEAR RIVER
BUG LAKE 7950 .3 .3 100* .6 .5 120
HAYDEN FORK 9100 .0 .2 0* 2.0 .5 400
KELLEY R.S. 8180 .1 .1 100* .8 .4 200
LILY LAKE 9050 .0 .2 0* 1.1 .5 220
MONTE CRISTO 8960 .0 .4 0* 1.3 .6 217
SALT RIVER SUMMIT 7600 .0 .0 100* .7 .4 175
TRIAL LAKE 9960 .2 .5 40* 2.2 .6 367
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Basin wide percent of average 35* 249
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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.