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 SUNDAY: OCTOBER 3 , 2004
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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* .0 .1 0
COTTONWOOD CREEK 7600 -M .0 * .0 .2 0
GRANITE CREEK 6770 .0 .0 100* .0 .1 0
GRASSY LAKE 7265 .1 .0 * .0 .2 0
GROS VENTRE SUMMIT 8750 .2 .1 200* .1 .1 100
LEWIS LAKE DIVIDE 7850 .3 .0 * .0 .2 0
PHILLIPS BENCH 8200 .0 .0 100* .1 .2 50
SALT RIVER SUMMIT 7600 .0 .0 100* .0 .1 0
SNAKE RIVER STATION 6920 .0 .0 100* .0 .1 0
SPRING CREEK DIVIDE 9000 .1 .0 * .0 .2 0
THUMB DIVIDE 7980 .0 .0 100* .1 .1 100
TOGWOTEE PASS 9580 .0 .1 0* .0 .2 0
TWO OCEAN PLATEAU 9240 -M .2 * .0 .2 0
WILLOW CREEK 8450 .0 .1 0* .1 .2 50
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Basin wide percent of average 67* 18
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .0 .5 0* .0 .1 0
BLACK BEAR 8170 .1 .4 25* .0 .2 0
CANYON 8090 .0 .1 0* .0 .1 0
FISHER CREEK 9100 .0 .4 0* .0 .2 0
MADISON PLATEAU 7750 .0 .2 0* .0 .2 0
NORTHEAST ENTRANCE 7350 .0 .0 100* .0 .1 0
PARKER PEAK 9400 .1 .6 17* .0 .2 0
SYLVAN LAKE 8420 .0 .5 0* .0 .2 0
THUMB DIVIDE 7980 .0 .0 100* .1 .1 100
TWO OCEAN PLATEAU 9240 -M .2 * .0 .2 0
WHISKEY CREEK 6800 .2 .1 200* .0 .1 0
WHITE MILL 8700 .2 .3 67* .0 .2 0
WOLVERINE 7650 .1 .0 * .3 .1 300
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Basin wide percent of average 19* 20
WIND RIVER
BURROUGHS CREEK 8750 .0 .2 0* .0 .1 0
COLD SPRINGS 9630 .0 .2 0* .0 .1 0
DEER PARK 9700 .0 .4 0* .1 .2 50
HOBBS PARK 10100 .3 .4 75* .2 .1 200
LITTLE WARM 9370 .1 .2 50* .0 .1 0
SOUTH PASS 9040 .0 .1 0* .3 .1 300
ST. LAWRENCE ALT 8620 .1 .1 100* .0 .1 0
TOGWOTEE PASS 9580 .0 .1 0* .0 .2 0
TOWNSEND CREEK 8700 .0 .0 100* .3 .1 300
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Basin wide percent of average 29* 82
BIGHORN BASIN
BALD MTN. 9380 .3 .7 43* .2 .2 100
BEAR TRAP MEADOW 8200 .0 .1 0* .3 .1 300
BLACKWATER 9780 .0 .7 0* .0 .2 0
BONE SPRINGS DIV 9350 .2 .6 33* .2 .2 100
EVENING STAR 9200 .1 .5 20* .1 .2 50
GRAVE SPRINGS 8550 .0 .1 0* .2 .1 200
KIRWIN 9550 .1 .5 20* .0 .1 0
MARQUETTE 8760 .1 .5 20* .2 .2 100
MIDDLE POWDER 7760 .0 .3 0* .4 .2 200
OWL CREEK 8975 .0 .2 0* .1 .1 100
POWDER RIVER PASS 9480 .2 .3 67* .0 .1 0
SHELL CREEK 9580 .4 .8 50* .0 .1 0
SYLVAN LAKE 8420 .0 .5 0* .0 .2 0
SYLVAN ROAD 7120 .0 .0 100* .0 .1 0
TIMBER CREEK 7950 .0 .0 100* .0 .1 0
YOUNTS PEAK 8350 .1 .2 50* .0 .1 0
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Basin wide percent of average 25* 74
SHOSHONE RIVER
BLACKWATER 9780 .0 .7 0* .0 .2 0
EVENING STAR 9200 .1 .5 20* .1 .2 50
KIRWIN 9550 .1 .5 20* .0 .1 0
MARQUETTE 8760 .1 .5 20* .2 .2 100
SYLVAN LAKE 8420 .0 .5 0* .0 .2 0
SYLVAN ROAD 7120 .0 .0 100* .0 .1 0
YOUNTS PEAK 8350 .1 .2 50* .0 .1 0
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Basin wide percent of average 14* 27
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0* .3 .1 300
BIG GOOSE 7990 .0 .0 100* .2 .1 200
BONE SPRINGS DIV 9350 .2 .6 33* .2 .2 100
BURGESS JUNCTION 7880 .1 .3 33* .1 .1 100
CLOUD PEAK RESERVOIR 9860 .1 .1 100* .1 .2 50
DOME LAKE 8880 .1 .4 25* .1 .2 50
GRAVE SPRINGS 8550 .0 .1 0* .2 .1 200
HANSEN SAWMILL 8360 .2 .1 200* .1 .1 100
MIDDLE POWDER 7760 .0 .3 0* .4 .2 200
POWDER RIVER PASS 9480 .2 .3 67* .0 .1 0
SUCKER CREEK 8880 .0 .2 0* .1 .2 50
TIE CREEK 6870 .0 .0 100* .0 .2 0
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Basin wide percent of average 36* 100
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* .0 .2 0
COLE CANYON 5910 .0 .0 100* .1 -M *
NORTH RAPID CREEK 6130 .0 .0 100* .0 .2 0
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Basin wide percent of average * 0
UPPER N. PLATTE RIVER
COLUMBINE 9160 -M .0 * .0 .2 0
DIVIDE PEAK 8860 .0 .2 0* .3 .2 150
ELK RIVER 8700 .0 .0 100* .0 .1 0
JOE WRIGHT 10120 1.5 .2 750* .4 .2 200
NORTH FRENCH CREEK 10130 1.2 .3 400* .3 .2 150
OLD BATTLE 9920 .2 .3 67* .2 .2 100
SAGE CREEK BASIN 7850 .0 .0 100* .1 .1 100
SOUTH BRUSH CREEK 8440 .0 .0 100* .5 .2 250
TOWER 10500 2.3 .2 1150* .2 .3 67
WEBBER SPRINGS 9250 .1 .2 50* .2 .2 100
WILLOW CREEK PASS 9540 1.2 .0 * .2 .1 200
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Basin wide percent of average 379* 120
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .1 .3 33* .3 .2 150
CASPER MTN. 7850 .0 .1 0* .6 .2 300
DEADMAN HILL 10220 1.4 .3 467* .2 .2 100
DEER PARK 9700 .0 .4 0* .1 .2 50
LAPRELE CREEK 8375 .0 .0 100* .3 .1 300
RENO HILL 8500 .1 .1 100* .2 .2 100
ROACH 9700 .2 .0 * .8 .2 400
SAND LAKE 10050 1.6 .5 320* .4 .2 200
SOUTH PASS 9040 .0 .1 0* .3 .1 300
WINDY PEAK 7900 .0 .0 100* .2 .1 200
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Basin wide percent of average 178* 200
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .0 100* .0 .1 0
DIVIDE PEAK 8860 .0 .2 0* .3 .2 150
OLD BATTLE 9920 .2 .3 67* .2 .2 100
SANDSTONE RS 8150 .0 .0 100* .1 .2 50
WHISKEY PARK 8950 .3 .1 300* .2 .2 100
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Basin wide percent of average 83* 89
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .0 .1 0* .1 .1 100
BLIND BULL SUM 8900 .0 .1 0* .0 .1 0
EAST RIM DIVIDE 7930 .0 .0 100* .1 .1 100
ELKHART PARK G.S. 9400 .0 .0 100* .1 .1 100
GROS VENTRE SUMMIT 8750 .2 .1 200* .1 .1 100
KENDALL R.S. 7740 .0 .0 100* .0 .1 0
LOOMIS PARK 8240 .0 .0 100* .0 .1 0
NEW FORK LAKE 8340 .1 .0 * .1 .1 100
SNIDER BASIN 8060 .0 .0 100* .0 .1 0
SPRING CREEK DIVIDE 9000 .1 .0 * .0 .2 0
TRIPLE PEAK 8500 .8 .0 * .0 .1 0
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Basin wide percent of average 67* 42
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .0 .1 0
HEWINTA 9500 .1 .1 100* .0 .2 0
HICKERSON PARK 9100 .0 .0 100* .2 .1 200
HOLE-IN-ROCK 9150 .0 .0 100* .1 .1 100
INDIAN CREEK 9425 .0 .1 0* .1 .2 50
KELLEY R.S. 8180 .1 .0 * .0 .1 0
STEEL CREEK PARK 10100 .0 .4 0* .1 .2 50
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Basin wide percent of average 17* 50
UPPER BEAR RIVER
BUG LAKE 7950 .0 .2 0* .0 .2 0
HAYDEN FORK 9100 .0 .1 0* .4 .2 200
KELLEY R.S. 8180 .1 .0 * .0 .1 0
LILY LAKE 9050 -M .1 * .0 .2 0
MONTE CRISTO 8960 .1 .3 33* .0 .2 0
SALT RIVER SUMMIT 7600 .0 .0 100* .0 .1 0
TRIAL LAKE 9960 .0 .4 0* .0 .2 0
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Basin wide percent of average 10* 33
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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.