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 3 , 2000
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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* .3 .1 300
COTTONWOOD CREEK 7600 .0 .0 100* .1 .1 100
GRANITE CREEK 6770 .1 .0 * .0 .1 0
GRASSY LAKE 7265 .0 .0 100* .0 .2 0
GROS VENTRE SUMMIT 8775 .2 .0 * .1 .1 100
LEWIS LAKE DIVIDE 7860 .0 .0 100* .7 .2 350
PHILLIPS BENCH 8200 .1 .0 * .0 .2 0
SALT RIVER SUMMIT 7600 .0 .0 100* .0 .1 0
SNAKE RIVER STATION 6920 .0 .0 100* .7 .1 700
SPRING CREEK DIVIDE 9000 .0 .0 100* .0 .1 0
THUMB DIVIDE 7980 .0 .0 100* .5 .1 500
TOGWOTEE PASS 9580 .1 .1 100* .3 .2 150
TWO OCEAN PLATEAU 9360 .2 .2 100* .7 .2 350
WILLOW CREEK 8450 .1 .0 * .0 .2 0
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Basin wide percent of average 100* 170
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .4 .7 57* .8 .1 800
BLACK BEAR 7950 .0 .5 -0* .6 .2 300
CANYON 7940 .0 .1 -0* .7 .1 700
FISHER CREEK 9100 .0 .5 0* 1.0 .2 500
MADISON PLATEAU 7750 .0 .2 0* .6 .2 300
NORTHEAST ENTRANCE 7350 .0 .0 100* .8 .1 800
PARKER PEAK 9400 .1 .9 11* 1.3 .1 1300
SYLVAN LAKE 8420 .1 .8 12* 1.1 .2 550
THUMB DIVIDE 7980 .0 .0 100* .5 .1 500
TWO OCEAN PLATEAU 9360 .2 .2 100* .7 .2 350
WHISKEY CREEK 6800 .0 .0 100* .7 .1 700
WHITE MILL 8700 .0 .4 0* 1.0 .2 500
WOLVERINE 7650 .0 .0 100* 1.3 .1 1300
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Basin wide percent of average 19* 584
WIND RIVER
BURROUGHS CREEK 8750 .1 .1 100* .1 .1 100
COLD SPRINGS 9630 .2 .1 200* .0 .1 0
DEER PARK 9700 .2 -M * .0 -M *
HOBBS PARK 10100 .2 .4 50* .0 .1 0
LITTLE WARM 9620 .1 .1 100* .0 .1 0
SOUTH PASS 9040 -M .4 * .1 .1 100
ST. LAWRENCE ALT 8620 .0 .0 100* .1 .1 100
TOGWOTEE PASS 9580 .1 .1 100* .3 .2 150
TOWNSEND CREEK 8700 .2 .0 * .1 .1 100
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Basin wide percent of average 87* 78
BIGHORN BASIN
BALD MTN. 9375 .0 .7 -0* .5 .1 500
BEAR TRAP MEADOW 7900 .0 .1 -0* .0 .1 0
BLACKWATER 9780 .6 .8 75* 1.0 .2 500
BONE SPRINGS DIV 9350 .1 .9 11* .4 .1 400
EVENING STAR 9200 .2 .7 29* -M .2 *
GRAVE SPRINGS 8550 .0 .2 0* .0 .1 0
KIRWIN 9550 .1 .4 25* .4 .1 400
MARQUETTE 8760 .0 .3 0* .5 .1 500
MIDDLE POWDER 7760 .1 .3 33* .0 .1 0
OWL CREEK 8975 .0 .3 0* .1 .1 100
POWDER RIVER PASS 9480 .0 .2 -0* .2 .1 200
SHELL CREEK 9580 .6 .8 75* .5 .1 500
SYLVAN LAKE 8420 .1 .8 12* 1.1 .2 550
SYLVAN ROAD 8120 .0 .3 0* 1.3 .1 1300
TIMBER CREEK 7950 .1 .0 * .5 .1 500
YOUNTS PEAK 8350 .0 .4 -0* 1.4 .1 1400
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Basin wide percent of average 25* 465
SHOSHONE RIVER
BLACKWATER 9780 .6 .8 75* 1.0 .2 500
EVENING STAR 9200 .2 .7 29* -M .2 *
KIRWIN 9550 .1 .4 25* .4 .1 400
MARQUETTE 8760 .0 .3 0* .5 .1 500
SYLVAN LAKE 8420 .1 .8 12* 1.1 .2 550
SYLVAN ROAD 8120 .0 .3 0* 1.3 .1 1300
YOUNTS PEAK 8350 .0 .4 -0* 1.4 .1 1400
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Basin wide percent of average 27* 712
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .1 -0* .0 .1 0
BIG GOOSE 7990 .2 -M * -M -M *
BONE SPRINGS DIV 9350 .1 .9 11* .4 .1 400
BURGESS JUNCTION 7880 .0 .4 0* .2 .1 200
CLOUD PEAK RESERVOIR 9860 .0 .3 -0* .7 .1 700
DOME LAKE 8880 .2 .4 50* .6 .1 600
GRAVE SPRINGS 8550 .0 .2 0* .0 .1 0
HANSEN SAWMILL 8760 .1 .1 100* .3 .1 300
MIDDLE POWDER 7760 .1 .3 33* .0 .1 0
POWDER RIVER PASS 9480 .0 .2 -0* .2 .1 200
SUCKER CREEK 8880 .0 .3 0* .1 .1 100
TIE CREEK 6870 .1 -M * .3 .1 300
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Basin wide percent of average 16* 255
BELLE FOURCHE
BLIND PARK 6890 .0 .2 0* .2 .1 200
NORTH RAPID CREEK 6130 .0 -M * .2 -M *
WARREN PEAK 6520 -M .2 * -M .1 *
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Basin wide percent of average 0* 200*
UPPER N. PLATTE RIVER
COLUMBINE 9400 .0 .1 0* .0 .2 0
DIVIDE PEAK 8800 .2 .1 200* .0 .2 0
ELK RIVER 8700 .0 .0 100* -M .1 *
JOE WRIGHT 10120 .2 .2 100* .0 .2 0
NORTH FRENCH CREEK 10100 .4 .1 400* .0 .1 0
OLD BATTLE 10000 .0 .6 0* .0 .2 0
SOUTH BRUSH CREEK 8400 .1 .0 * .0 .1 0
TOWER 10500 .4 .3 133* .0 .3 0
WEBBER SPRINGS 9200 .3 .1 300* .0 .2 0
WILLOW CREEK PASS 9540 .2 .0 * .1 .1 100
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Basin wide percent of average 100* 6
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .2 .3 67* .1 .2 50
CASPER MTN. 7900 .2 .1 200* .0 .2 0
DEADMAN HILL 10220 .6 .1 600* .0 .2 0
DEER PARK 9700 .2 -M * .0 -M *
LAPRELE CREEK 8320 .0 .0 100* .0 .1 0
RENO HILL 8400 .2 .1 200* .0 .2 0
ROACH 9700 .2 .1 200* .0 .2 0
SAND LAKE 10080 .1 .1 100* .1 .2 50
SOUTH PASS 9040 -M .4 * .1 .1 100
WINDY PEAK 7840 .0 .0 100* .0 .1 0
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Basin wide percent of average 188* 20
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * .0 .1 0
DIVIDE PEAK 8800 .2 .1 200* .0 .2 0
OLD BATTLE 10000 .0 .6 0* .0 .2 0
SANDSTONE RS 8150 .3 .0 * .0 .1 0
WHISKEY PARK 8950 .2 .1 200* .0 .1 0
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Basin wide percent of average 50* 0
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .1 .0 * .0 .1 0
BLIND BULL SUM 8650 .0 .0 100* .0 .1 0
EAST RIM DIVIDE 7930 .1 .0 * .1 .1 100
ELKHART PARK G.S. 9400 .1 .0 * .0 .1 0
GROS VENTRE SUMMIT 8775 .2 .0 * .1 .1 100
KENDALL R.S. 7740 .0 .0 100* .0 .1 0
LOOMIS PARK 8240 .2 .0 * .1 .1 100
NEW FORK LAKE 8340 .1 .0 * .0 .1 0
SNIDER BASIN 8250 .1 .0 * .0 .1 0
SPRING CREEK DIVIDE 9000 .0 .0 100* .0 .1 0
TRIPLE PEAK 8500 .0 .0 100* .0 .2 0
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Basin wide percent of average * 25
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .0 .1 0
HEWINTA 9500 .6 .0 * .2 .2 100
HICKERSON PARK 9150 -M .0 * .3 .1 300
HOLE-IN-ROCK 9150 .0 .0 100* .2 .1 200
INDIAN CREEK 9425 .2 .0 * .0 .1 0
KELLEY R.S. 8180 .1 .0 * .0 .1 0
STEEL CREEK PARK 10100 .6 .5 120* .0 .2 0
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Basin wide percent of average 120* 78
UPPER BEAR RIVER
BUG LAKE 7950 .0 .3 0* .0 .2 0
HAYDEN FORK 9400 .0 .1 0* .1 .2 50
KELLEY R.S. 8180 .1 .0 * .0 .1 0
LILY LAKE 9050 -M .2 * .0 .2 0
MONTE CRISTO 8960 -M .4 * .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 0* 8
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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.