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 6 , 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 * .4 .3 133
COTTONWOOD CREEK 7670 .0 .0 100* .7 .4 175
GRAND TARGHEE 9260 .0 -M * .3 -M *
GRANITE CREEK 6770 .1 .0 * .6 .3 200
GRASSY LAKE 7265 .1 .0 * .9 .5 180
GROS VENTRE SUMMIT 8750 .1 .2 50* .5 .3 167
GUNSIGHT PASS 9820 .0 -M * .2 -M *
LEWIS LAKE DIVIDE 7850 .2 .0 * .6 .4 150
PHILLIPS BENCH 8200 .0 .0 100* .2 .3 67
SALT RIVER SUMMIT 7760 .1 .0 * .3 .3 100
SNAKE RIVER STATION 6920 .1 .0 * .5 .3 167
SPRING CREEK DIVIDE 9000 .2 .0 * .7 .3 233
THUMB DIVIDE 7980 .1 .0 * .3 .3 100
TOGWOTEE PASS 9580 .0 .3 0* .4 .4 100
TWO OCEAN PLATEAU 9240 .1 .4 25* .2 .4 50
WILLOW CREEK 8380 .0 .0 100* .6 .6 100
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Basin wide percent of average 133* 135
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .0 .7 0* .4 .3 133
BLACK BEAR 8170 .0 .4 0* 1.1 .4 275
CANYON 7870 .0 .1 0* .0 .3 0
FISHER CREEK 9100 .0 .5 0* .4 .4 100
MADISON PLATEAU 7750 .0 .3 0* 1.2 .4 300
NORTHEAST ENTRANCE 7350 .0 .0 100* .2 .3 67
PARKER PEAK 9400 .0 .8 0* .1 .4 25
SYLVAN LAKE 8420 .0 .6 0* .4 .4 100
THUMB DIVIDE 7980 .1 .0 * .3 .3 100
TWO OCEAN PLATEAU 9240 .1 .4 25* .2 .4 50
WHISKEY CREEK 6800 .0 .1 0* 1.0 .3 333
WHITE MILL 8700 .0 .3 0* .4 .4 100
WOLVERINE 7650 .0 .1 0* .1 .3 33
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Basin wide percent of average 5* 126
WIND RIVER
BURROUGHS CREEK 8750 .0 .2 0* .2 .3 67
CASTLE CREEK 8400 .0 -M * .1 -M *
COLD SPRINGS 9630 .0 .3 0* .0 .3 0
DEER PARK 9700 .0 .6 0* .1 .4 25
HOBBS PARK 10100 .0 .6 0* .1 .3 33
LITTLE WARM 9370 .0 .2 0* .1 .3 33
SOUTH PASS 9040 .0 .4 0* .0 .3 0
ST. LAWRENCE ALT 8620 .0 .2 0* .1 .3 33
TOGWOTEE PASS 9580 .0 .3 0* .4 .4 100
TOWNSEND CREEK 8700 .0 .2 0* .1 .3 33
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Basin wide percent of average 0* 38
BIGHORN BASIN
BALD MTN. 9380 .0 .9 0* .0 .4 0
BEAR TRAP MEADOW 8200 .0 .2 0* .2 .3 67
BLACKWATER 9780 .0 .9 0* .1 .4 25
BONE SPRINGS DIV 9350 .0 .7 0* .0 .5 0
EVENING STAR 9200 .0 .7 0* .2 .4 50
GRAVE SPRINGS 8550 .0 .3 0* .0 .4 0
KIRWIN 9550 .0 .5 0* .4 .3 133
MARQUETTE 8760 .0 -M * .1 .4 25
MIDDLE POWDER 7760 .0 .3 0* .0 .4 0
OWL CREEK 8975 .0 .3 0* .0 .2 0
POWDER RIVER PASS 9480 .0 .4 0* .0 .4 0
SHELL CREEK 9580 .0 1.0 0* .0 .4 0
SYLVAN LAKE 8420 .0 .6 0* .4 .4 100
SYLVAN ROAD 7120 .0 .0 100* .0 .3 0
TIMBER CREEK 7950 .0 .2 0* .0 .3 0
YOUNTS PEAK 8350 .0 .2 0* .2 .3 67
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Basin wide percent of average 0* 28
SHOSHONE RIVER
BLACKWATER 9780 .0 .9 0* .1 .4 25
EVENING STAR 9200 .0 .7 0* .2 .4 50
KIRWIN 9550 .0 .5 0* .4 .3 133
MARQUETTE 8760 .0 -M * .1 .4 25
SYLVAN LAKE 8420 .0 .6 0* .4 .4 100
SYLVAN ROAD 7120 .0 .0 100* .0 .3 0
YOUNTS PEAK 8350 .0 .2 0* .2 .3 67
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Basin wide percent of average 0* 56
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .2 0* .2 .3 67
BIG GOOSE 7990 .0 .1 0* .0 .4 0
BONE SPRINGS DIV 9350 .0 .7 0* .0 .5 0
BURGESS JUNCTION 7880 .0 .4 0* .0 .4 0
CLOUD PEAK RESERVOIR 9860 .0 .2 0* .1 .5 20
DOME LAKE 8880 .0 .4 0* .1 .4 25
GRAVE SPRINGS 8550 .0 .3 0* .0 .4 0
HANSEN SAWMILL 8360 .0 .1 0* .0 .3 0
LITTLE GOOSE 8870 .0 -M * .1 -M *
MIDDLE POWDER 7760 .0 .3 0* .0 .4 0
POWDER RIVER PASS 9480 .0 .4 0* .0 .4 0
SOLDIER PARK 8720 .0 -M * .0 -M *
SUCKER CREEK 8880 .0 .3 0* .1 .4 25
TIE CREEK 6870 .0 .1 0* .0 .5 0
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Basin wide percent of average 0* 10
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* .0 .4 0
COLE CANYON 5910 .0 .0 100* .0 .3 0
NORTH RAPID CREEK 6130 .0 .0 100* .0 .4 0
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Basin wide percent of average 0* 0
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 .1 -M * .3 -M *
CINNABAR PARK 9574 .1 .0 * .3 .3 100
COLUMBINE 9160 .1 .0 * .4 .3 133
DIVIDE PEAK 8880 .1 .3 33* .1 .4 25
ELK RIVER 8700 .0 .0 100* .2 .3 67
JOE WRIGHT 10120 .0 .3 0* .2 .5 40
NORTH FRENCH CREEK 10130 .0 .5 0* .3 .4 75
OLD BATTLE 10000 .0 .5 0* .1 .5 20
SAGE CREEK BASIN 7850 .0 .0 100* .1 .2 50
SOUTH BRUSH CREEK 8440 .1 .0 * .4 .4 100
TOWER 10500 .0 .3 0* .3 .5 60
WEBBER SPRINGS 9250 .1 .2 50* .1 .4 25
WILLOW CREEK PASS 9540 .0 .0 100* .3 .3 100
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Basin wide percent of average 24* 62
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .4 0* .3 .3 100
CASPER MTN. 7900 .1 .2 50* -M .3 *
DEADMAN HILL 10220 .0 .4 0* .3 .4 75
DEER PARK 9700 .0 .6 0* .1 .4 25
LAPRELE CREEK 8375 .0 .1 0* .0 .3 0
RENO HILL 8400 .0 .3 0* -M .3 *
ROACH 9700 .2 .1 200* .4 .4 100
SAND LAKE 10050 .0 .6 0* .2 .4 50
SOUTH PASS 9040 .0 .4 0* .0 .3 0
WINDY PEAK 7900 .1 .0 * .0 .3 0
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Basin wide percent of average 13* 46
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* .2 .2 100
DIVIDE PEAK 8880 .1 .3 33* .1 .4 25
OLD BATTLE 10000 .0 .5 0* .1 .5 20
SANDSTONE RS 8150 .0 .0 100* .2 .3 67
WHISKEY PARK 8950 .0 .2 0* .2 .4 50
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Basin wide percent of average 10* 44
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .1 100* .2 .3 67
BLIND BULL SUM 8650 .0 .0 100* .2 .3 67
EAST RIM DIVIDE 7930 .4 .0 * .6 .2 300
ELKHART PARK G.S. 9400 .0 .0 100* .7 .3 233
GROS VENTRE SUMMIT 8750 .1 .2 50* .5 .3 167
GUNSIGHT PASS 9820 .0 -M * .2 -M *
KENDALL R.S. 7740 .1 .0 * .8 .2 400
LOOMIS PARK 8240 .2 .0 * .6 .3 200
NEW FORK LAKE 8340 .1 .0 * .4 .3 133
POCKET CREEK 9360 .0 -M * .1 -M *
SNIDER BASIN 8060 .1 .0 * .4 .2 200
SPRING CREEK DIVIDE 9000 .2 .0 * .7 .3 233
TRIPLE PEAK 8500 .1 .0 * .5 .3 167
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Basin wide percent of average 467* 187
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .2 .2 100
HEWINTA 9519 .0 .1 0* .3 .3 100
HICKERSON PARK 9145 .0 .0 100* .3 .3 100
HOLE-IN-ROCK 9150 .3 .0 * .2 .3 67
INDIAN CREEK 9425 .1 .1 100* .4 .3 133
KELLEY R.S. 8180 .2 .0 * .5 .3 167
STEEL CREEK PARK 10200 -M .4 * -M .3 *
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Basin wide percent of average 350* 112
UPPER BEAR RIVER
BUG LAKE 7950 -M .3 * -M .3 *
HAYDEN FORK 9212 -M .2 * -M .4 *
KELLEY R.S. 8180 .2 .0 * .5 .3 167
LILY LAKE 9156 .0 .2 0* .6 .3 200
MONTE CRISTO 8960 -M .3 * -M .4 *
SALT RIVER SUMMIT 7760 .1 .0 * .3 .3 100
TRIAL LAKE 9992 .5 .5 100* .9 .4 225
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Basin wide percent of average 114* 177
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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.