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 9 , 2008
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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 .0 100 .9 .5 180
COTTONWOOD CREEK 7670 .0 .0 100 .7 .7 100
GRAND TARGHEE 9260 .3 -M * 1.4 -M *
GRANITE CREEK 6770 .1 .0 .7 .4 175
GRASSY LAKE 7265 .0 .0 100 .8 .8 100
GROS VENTRE SUMMIT 8750 .1 .3 33 .6 .5 120
GUNSIGHT PASS 9820 .2 -M * .4 -M *
LEWIS LAKE DIVIDE 7850 .0 .0 100 1.0 .6 167
PHILLIPS BENCH 8200 .0 .0 100 .4 .5 80
SALT RIVER SUMMIT 7760 .0 .0 100 .4 .5 80
SNAKE RIVER STATION 6920 .0 .0 100 .5 .5 100
SPRING CREEK DIVIDE 9000 .0 .0 100 .3 .5 60
THUMB DIVIDE 7980 .0 .0 100 1.0 .5 200
TOGWOTEE PASS 9580 .0 .5 0 .6 .7 86
TWO OCEAN PLATEAU 9240 .1 .7 14 .5 .7 71
WILLOW CREEK 8380 .1 .1 100 1.0 .9 111
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Basin wide percent of average 19 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 .0 .9 0 .3 .5 60
BLACK BEAR 8170 .0 .5 0 2.0 .7 286
CANYON 7870 .1 .1 100 .0 .4 0
FISHER CREEK 9100 .2 .6 33 .5 .7 71
MADISON PLATEAU 7750 .0 .4 0 1.0 .6 167
NORTHEAST ENTRANCE 7350 -M .1 * .3 .4 75
PARKER PEAK 9400 .0 .9 0 .4 .6 67
SYLVAN LAKE 8420 .0 .6 0 .8 .6 133
THUMB DIVIDE 7980 .0 .0 100 1.0 .5 200
TWO OCEAN PLATEAU 9240 .1 .7 14 .5 .7 71
WHISKEY CREEK 6800 .0 .1 0 .5 .5 100
WHITE MILL 8700 .1 .4 25 .3 .7 43
WOLVERINE 7650 .1 .1 100 .0 .5 0
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Basin wide percent of average 11 103
WIND RIVER
BURROUGHS CREEK 8750 .0 .2 0 .3 .4 75
COLD SPRINGS 9630 .0 .2 0 .3 .4 75
DEER PARK 9700 .0 .7 0 .8 .5 160
HOBBS PARK 10100 .1 .6 17 .3 .5 60
LITTLE WARM 9370 .0 .2 0 .4 .4 100
SOUTH PASS 9040 .0 .4 0 .8 .4 200
ST. LAWRENCE ALT 8620 .1 .2 50 .1 .4 25
TOGWOTEE PASS 9580 .0 .5 0 .6 .7 86
TOWNSEND CREEK 8700 .0 .3 0 .4 .5 80
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Basin wide percent of average 6 95
BIGHORN BASIN
BALD MTN. 9380 .0 1.2 0 .5 .7 71
BEAR TRAP MEADOW 8200 .0 .2 0 .6 .5 120
BLACKWATER 9780 .0 1.1 0 .5 .7 71
BONE SPRINGS DIV 9350 .0 .9 0 .8 .7 114
EVENING STAR 9200 .0 .9 0 .4 .7 57
GRAVE SPRINGS 8550 .0 .5 0 .5 .6 83
KIRWIN 9550 .1 .7 14 .1 .4 25
MARQUETTE 8760 .0 .7 0 .1 .6 17
MIDDLE POWDER 7760 .3 .5 60 .7 .7 100
OWL CREEK 8975 .0 .4 0 .1 .3 33
POWDER RIVER PASS 9480 .0 .4 0 .8 .6 133
SHELL CREEK 9580 .6 1.3 46 1.3 .6 217
SYLVAN LAKE 8420 .0 .6 0 .8 .6 133
SYLVAN ROAD 7120 .2 .0 .6 .4 150
TIMBER CREEK 7950 .0 .2 0 .4 .4 100
YOUNTS PEAK 8350 .0 .4 0 .2 .5 40
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Basin wide percent of average 10 93
SHOSHONE RIVER
BLACKWATER 9780 .0 1.1 0 .5 .7 71
EVENING STAR 9200 .0 .9 0 .4 .7 57
KIRWIN 9550 .1 .7 14 .1 .4 25
MARQUETTE 8760 .0 .7 0 .1 .6 17
SYLVAN LAKE 8420 .0 .6 0 .8 .6 133
SYLVAN ROAD 7120 .2 .0 .6 .4 150
YOUNTS PEAK 8350 .0 .4 0 .2 .5 40
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Basin wide percent of average 2 69
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .2 0 .6 .5 120
BIG GOOSE 7990 .0 .2 0 .3 .6 50
BONE SPRINGS DIV 9350 .0 .9 0 .8 .7 114
BURGESS JUNCTION 7880 .0 .5 0 .6 .6 100
CLOUD PEAK RESERVOIR 9860 .1 .4 25 .2 .7 29
DOME LAKE 8880 .0 .6 0 .2 .7 29
GRAVE SPRINGS 8550 .0 .5 0 .5 .6 83
HANSEN SAWMILL 8360 .0 .2 0 .0 .5 0
MIDDLE POWDER 7760 .3 .5 60 .7 .7 100
POWDER RIVER PASS 9480 .0 .4 0 .8 .6 133
SUCKER CREEK 8880 .0 .5 0 .4 .7 57
TIE CREEK 6870 .0 .1 0 .5 .7 71
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Basin wide percent of average 8 74
BELLE FOURCHE
BLIND PARK 6890 .0 .3 0 .0 .6 0
COLE CANYON 5910 .1 .2 50 .3 .5 60
NORTH RAPID CREEK 6130 .0 .1 0 -M .7 *
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Basin wide percent of average 17 27
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .0 100 .0 .5 0
DIVIDE PEAK 8880 .0 .4 0 1.2 .6 200
ELK RIVER 8700 .1 .0 .6 .5 120
JOE WRIGHT 10120 .1 .4 25 .4 .9 44
NORTH FRENCH CREEK 10130 .0 .8 0 .2 .7 29
OLD BATTLE 10000 .0 .7 0 .8 .7 114
SAGE CREEK BASIN 7850 .0 .0 100 .2 .4 50
SOUTH BRUSH CREEK 8440 .0 .1 0 .2 .6 33
TOWER 10500 .0 .5 0 .7 .8 87
WEBBER SPRINGS 9250 .0 .3 0 .5 .7 71
WILLOW CREEK PASS 9540 .0 .1 0 .4 .5 80
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Basin wide percent of average 3 75
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .5 0 .0 .6 0
CASPER MTN. 7900 .0 .3 0 .1 .5 20
DEADMAN HILL 10220 .0 .6 0 .2 .6 33
DEER PARK 9700 .0 .7 0 .8 .5 160
LAPRELE CREEK 8375 .0 .1 0 .0 .4 0
RENO HILL 8400 .0 .4 0 .0 .6 0
ROACH 9700 .1 .1 100 .2 .6 33
SAND LAKE 10050 .0 .8 0 .0 .7 0
SOUTH PASS 9040 .0 .4 0 .8 .4 200
WINDY PEAK 7900 .1 .0 .1 .4 25
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Basin wide percent of average 3 42
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100 .4 .4 100
DIVIDE PEAK 8880 .0 .4 0 1.2 .6 200
OLD BATTLE 10000 .0 .7 0 .8 .7 114
SANDSTONE RS 8150 .0 .0 100 .3 .5 60
WHISKEY PARK 8950 .0 .3 0 .5 .7 71
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Basin wide percent of average 0 110
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .2 50 .7 .4 175
BLIND BULL SUM 8650 .0 .2 0 .5 .5 100
EAST RIM DIVIDE 7930 .0 .0 100 .4 .3 133
ELKHART PARK G.S. 9400 .1 .1 100 .8 .5 160
GROS VENTRE SUMMIT 8750 .1 .3 33 .6 .5 120
GUNSIGHT PASS 9820 .2 -M * .4 -M *
KENDALL R.S. 7740 .0 .0 100 .4 .4 100
LOOMIS PARK 8240 .0 .1 0 .7 .5 140
NEW FORK LAKE 8340 .0 .0 100 .4 .4 100
SNIDER BASIN 8060 .0 .0 100 .1 .3 33
SPRING CREEK DIVIDE 9000 .0 .0 100 .3 .5 60
TRIPLE PEAK 8500 .1 .1 100 .3 .5 60
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Basin wide percent of average 40 108
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100 .2 .3 67
HEWINTA 9519 .0 .2 0 .2 .6 33
HICKERSON PARK 9145 .0 .0 100 .3 .4 75
HOLE-IN-ROCK 9150 .0 .0 100 .3 .4 75
INDIAN CREEK 9425 .0 .2 0 .3 .5 60
KELLEY R.S. 8180 .0 .0 100 .5 .5 100
STEEL CREEK PARK 10200 .0 .5 0 .4 .6 67
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Basin wide percent of average 0 67
UPPER BEAR RIVER
BUG LAKE 7950 .0 .3 0 .7 .6 117
HAYDEN FORK 9212 .0 .2 0 .9 .6 150
KELLEY R.S. 8180 .0 .0 100 .5 .5 100
LILY LAKE 9156 .1 .3 33 .9 .5 180
MONTE CRISTO 8960 .0 .4 0 1.0 .7 143
SALT RIVER SUMMIT 7760 .0 .0 100 .4 .5 80
TRIAL LAKE 9992 .1 .6 17 1.0 .7 143
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Basin wide percent of average 11 132
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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 1961-90.
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.