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 2 , 2007
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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 * .2 .1 200
COTTONWOOD CREEK 7600 .0 .0 100* .1 .1 100
GRANITE CREEK 6770 .1 .0 * .2 .1 200
GRASSY LAKE 7265 .2 .0 * .4 .1 400
GROS VENTRE SUMMIT 8750 .0 .0 100* .0 .1 0
LEWIS LAKE DIVIDE 7850 -M .0 * -M .1 *
PHILLIPS BENCH 8200 .0 .0 100* .2 .1 200
SALT RIVER SUMMIT 7600 .0 .0 100* .0 .1 0
SNAKE RIVER STATION 6920 .1 .0 * .1 .1 100
SPRING CREEK DIVIDE 9000 .1 .0 * .0 .1 0
THUMB DIVIDE 7980 .1 .0 * .2 .1 200
TOGWOTEE PASS 9580 .0 .1 0* .1 .1 100
TWO OCEAN PLATEAU 9240 .3 .1 300* .2 .1 200
WILLOW CREEK 8450 .1 .0 * .1 .1 100
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Basin wide percent of average 150* 138
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .1 .5 20* .1 .1 100
BLACK BEAR 8170 .4 .3 133* .5 .1 500
CANYON 8090 .2 .1 200* .2 .1 200
FISHER CREEK 9100 .0 .4 0* .0 .1 0
MADISON PLATEAU 7750 .5 .2 250* .5 .1 500
NORTHEAST ENTRANCE 7350 .0 .0 100* .1 .1 100
PARKER PEAK 9400 .0 .6 0* .0 .1 0
SYLVAN LAKE 8420 .0 .4 0* .2 .1 200
THUMB DIVIDE 7980 .1 .0 * .2 .1 200
TWO OCEAN PLATEAU 9240 .3 .1 300* .2 .1 200
WHISKEY CREEK 6800 .0 .1 0* .4 .1 400
WHITE MILL 8700 .0 .2 0* .0 .1 0
WOLVERINE 7650 .0 .0 100* .0 .1 0
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Basin wide percent of average 52* 185
WIND RIVER
BURROUGHS CREEK 8750 .0 .2 0* .0 .1 0
COLD SPRINGS 9630 .0 .2 0* .0 .1 0
DEER PARK 9700 .1 .3 33* .1 .1 100
HOBBS PARK 10100 .1 .3 33* .1 .1 100
LITTLE WARM 9370 .0 .2 0* .0 .1 0
SOUTH PASS 9040 .1 .1 100* .1 .1 100
ST. LAWRENCE ALT 8620 .0 .1 0* .1 .1 100
TOGWOTEE PASS 9580 .0 .1 0* .1 .1 100
TOWNSEND CREEK 8700 .0 .0 100* .1 .1 100
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Basin wide percent of average 20* 67
BIGHORN BASIN
BALD MTN. 9380 .0 .7 0* .0 .1 0
BEAR TRAP MEADOW 8200 .0 .1 0* .0 .1 0
BLACKWATER 9780 .1 .7 14* .1 .1 100
BONE SPRINGS DIV 9350 .0 .6 0* .0 .1 0
EVENING STAR 9200 .0 .5 0* .1 .1 100
GRAVE SPRINGS 8550 .0 .1 0* .0 .1 0
KIRWIN 9550 .0 .4 0* .0 .1 0
MARQUETTE 8760 .0 .4 0* .0 .1 0
MIDDLE POWDER 7760 .0 .2 0* .0 .1 0
OWL CREEK 8975 .0 .2 0* .0 .0 100
POWDER RIVER PASS 9480 .1 .3 33* .2 .1 200
SHELL CREEK 9580 .6 .8 75* .1 .1 100
SYLVAN LAKE 8420 .0 .4 0* .2 .1 200
SYLVAN ROAD 7120 .0 .0 100* .1 .1 100
TIMBER CREEK 7950 .0 .0 100* .0 .1 0
YOUNTS PEAK 8350 .0 .1 0* .1 .1 100
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Basin wide percent of average 15* 60
SHOSHONE RIVER
BLACKWATER 9780 .1 .7 14* .1 .1 100
EVENING STAR 9200 .0 .5 0* .1 .1 100
KIRWIN 9550 .0 .4 0* .0 .1 0
MARQUETTE 8760 .0 .4 0* .0 .1 0
SYLVAN LAKE 8420 .0 .4 0* .2 .1 200
SYLVAN ROAD 7120 .0 .0 100* .1 .1 100
YOUNTS PEAK 8350 .0 .1 0* .1 .1 100
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Basin wide percent of average 4* 86
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0* .0 .1 0
BIG GOOSE 7990 .0 .0 100* .0 .1 0
BONE SPRINGS DIV 9350 .0 .6 0* .0 .1 0
BURGESS JUNCTION 7880 .0 .3 0* .1 .1 100
CLOUD PEAK RESERVOIR 9860 .0 .1 0* .0 .1 0
DOME LAKE 8880 .1 .3 33* .1 .1 100
GRAVE SPRINGS 8550 .0 .1 0* .0 .1 0
HANSEN SAWMILL 8360 .0 .1 0* .0 .1 0
MIDDLE POWDER 7760 .0 .2 0* .0 .1 0
POWDER RIVER PASS 9480 .1 .3 33* .2 .1 200
SUCKER CREEK 8880 .0 .2 0* .0 .1 0
TIE CREEK 6870 .0 .0 100* .1 .1 100
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Basin wide percent of average 9* 42
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* .0 .1 0
COLE CANYON 5910 .0 .0 100* .1 -M *
NORTH RAPID CREEK 6130 .0 .0 100* .1 .1 100
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Basin wide percent of average * 50
UPPER N. PLATTE RIVER
COLUMBINE 9160 .3 .0 * .8 .1 800
DIVIDE PEAK 8860 -M .1 * -M .1 *
ELK RIVER 8700 .0 .0 100* .4 .1 400
JOE WRIGHT 10120 .3 .2 150* 1.0 .1 1000
NORTH FRENCH CREEK 10130 1.1 .2 550* .7 .1 700
OLD BATTLE 9920 .8 .3 267* .7 .1 700
SAGE CREEK BASIN 7850 .1 .0 * .2 .1 200
SOUTH BRUSH CREEK 8440 .6 .0 * .6 .1 600
TOWER 10500 1.0 .2 500* .9 .1 900
WEBBER SPRINGS 9250 .3 .1 300* .6 .1 600
WILLOW CREEK PASS 9540 .3 .0 * .4 .1 400
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Basin wide percent of average 350* 630
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .3 .2 150* .3 .1 300
CASPER MTN. 7850 .1 .0 * .1 .1 100
DEADMAN HILL 10220 .4 .2 200* .3 .1 300
DEER PARK 9700 .1 .3 33* .1 .1 100
LAPRELE CREEK 8375 .0 .0 100* .2 .1 200
RENO HILL 8500 .0 .0 100* .2 .1 200
ROACH 9700 .3 .0 * .5 .1 500
SAND LAKE 10050 .9 .5 180* .6 .1 600
SOUTH PASS 9040 .1 .1 100* .1 .1 100
WINDY PEAK 7900 .0 .0 100* .1 .1 100
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Basin wide percent of average 138* 250
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* .5 .1 500
DIVIDE PEAK 8860 -M .1 * -M .1 *
OLD BATTLE 9920 .8 .3 267* .7 .1 700
SANDSTONE RS 8150 .0 .0 100* .4 .1 400
WHISKEY PARK 8950 .3 .0 * .5 .1 500
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Basin wide percent of average 267* 525
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .0 100* .0 .1 0
BLIND BULL SUM 8900 .0 .0 100* .1 .1 100
EAST RIM DIVIDE 7930 .0 .0 100* .0 .0 100
ELKHART PARK G.S. 9400 .0 .0 100* .0 .1 0
GROS VENTRE SUMMIT 8750 .0 .0 100* .0 .1 0
KENDALL R.S. 7740 .0 .0 100* .1 .1 100
LOOMIS PARK 8240 .0 .0 100* .1 .1 100
NEW FORK LAKE 8340 .0 .0 100* .0 .1 0
SNIDER BASIN 8060 .3 .0 * .0 .1 0
SPRING CREEK DIVIDE 9000 .1 .0 * .0 .1 0
TRIPLE PEAK 8500 .1 .0 * .2 .1 200
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Basin wide percent of average * 50
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .0 .0 100
HEWINTA 9500 .0 .0 100* .4 .1 400
HICKERSON PARK 9100 .1 .0 * .1 .1 100
HOLE-IN-ROCK 9150 .0 .0 100* .3 .1 300
INDIAN CREEK 9425 .0 .0 100* .0 .1 0
KELLEY R.S. 8180 .0 .0 100* .0 .1 0
STEEL CREEK PARK 10100 1.6 .3 533* .4 .1 400
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Basin wide percent of average 533* 200
UPPER BEAR RIVER
BUG LAKE 7950 .1 .2 50* .0 .1 0
HAYDEN FORK 9100 .2 .1 200* .4 .1 400
KELLEY R.S. 8180 .0 .0 100* .0 .1 0
LILY LAKE 9050 .0 .1 0* .6 .1 600
MONTE CRISTO 8960 .3 .2 150* .2 .1 200
SALT RIVER SUMMIT 7600 .0 .0 100* .0 .1 0
TRIAL LAKE 9960 .2 .3 67* .2 .1 200
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Basin wide percent of average 89* 200
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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.