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 , 2006
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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 * .5 .1 500
COTTONWOOD CREEK 7600 .0 .0 100* .2 .2 100
GRANITE CREEK 6770 .2 .0 * .5 .1 500
GRASSY LAKE 7265 .3 .0 * .8 .2 400
GROS VENTRE SUMMIT 8750 .1 .1 100* .2 .1 200
LEWIS LAKE DIVIDE 7850 -M .0 * .8 .2 400
PHILLIPS BENCH 8200 .0 .0 100* .6 .2 300
SALT RIVER SUMMIT 7600 .0 .0 100* .3 .1 300
SNAKE RIVER STATION 6920 .1 .0 * .6 .1 600
SPRING CREEK DIVIDE 9000 .0 .0 100* .2 .2 100
THUMB DIVIDE 7980 .0 .0 100* .5 .1 500
TOGWOTEE PASS 9580 .1 .1 100* .2 .2 100
TWO OCEAN PLATEAU 9240 .1 .2 50* .3 .2 150
WILLOW CREEK 8450 .1 .1 100* .5 .2 250
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Basin wide percent of average 80* 282
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .3 .5 60* .2 .1 200
BLACK BEAR 8170 .4 .4 100* .8 .2 400
CANYON 8090 .2 .1 200* .6 .1 600
FISHER CREEK 9100 .5 .4 125* .1 .2 50
MADISON PLATEAU 7750 .3 .2 150* .7 .2 350
NORTHEAST ENTRANCE 7350 .0 .0 100* .7 .1 700
PARKER PEAK 9400 .2 .6 33* .3 .2 150
SYLVAN LAKE 8420 .1 .5 20* .7 .2 350
THUMB DIVIDE 7980 .0 .0 100* .5 .1 500
TWO OCEAN PLATEAU 9240 .1 .2 50* .3 .2 150
WHISKEY CREEK 6800 .3 .1 300* .6 .1 600
WHITE MILL 8700 .2 .3 67* .5 .2 250
WOLVERINE 7650 .1 .0 * .3 .1 300
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Basin wide percent of average 79* 315
WIND RIVER
BURROUGHS CREEK 8750 -M .2 * -M .1 *
COLD SPRINGS 9630 .0 .2 0* .1 .1 100
DEER PARK 9700 .2 .4 50* .4 .2 200
HOBBS PARK 10100 .2 .4 50* .2 .1 200
LITTLE WARM 9370 .1 .2 50* .2 .1 200
SOUTH PASS 9040 .0 .1 0* .4 .1 400
ST. LAWRENCE ALT 8620 .2 .1 200* .1 .1 100
TOGWOTEE PASS 9580 .1 .1 100* .2 .2 100
TOWNSEND CREEK 8700 .4 .0 * .5 .1 500
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Basin wide percent of average 53* 210
BIGHORN BASIN
BALD MTN. 9380 2.0 .7 286* .0 .2 0
BEAR TRAP MEADOW 8200 .0 .1 0* .0 .1 0
BLACKWATER 9780 .1 .7 14* .1 .2 50
BONE SPRINGS DIV 9350 2.3 .6 383* .1 .2 50
EVENING STAR 9200 .3 .5 60* .0 .2 0
GRAVE SPRINGS 8550 .0 .1 0* .1 .1 100
KIRWIN 9550 .1 .5 20* .4 .1 400
MARQUETTE 8760 .0 .5 0* .2 .2 100
MIDDLE POWDER 7760 .4 .3 133* .2 .2 100
OWL CREEK 8975 .1 .2 50* .2 .1 200
POWDER RIVER PASS 9480 .3 .3 100* .1 .1 100
SHELL CREEK 9580 3.2 .8 400* .0 .1 0
SYLVAN LAKE 8420 .1 .5 20* .7 .2 350
SYLVAN ROAD 7120 .2 .0 * .4 .1 400
TIMBER CREEK 7950 .0 .0 100* .2 .1 200
YOUNTS PEAK 8350 .0 .2 0* 1.1 .1 1100
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Basin wide percent of average 148* 165
SHOSHONE RIVER
BLACKWATER 9780 .1 .7 14* .1 .2 50
EVENING STAR 9200 .3 .5 60* .0 .2 0
KIRWIN 9550 .1 .5 20* .4 .1 400
MARQUETTE 8760 .0 .5 0* .2 .2 100
SYLVAN LAKE 8420 .1 .5 20* .7 .2 350
SYLVAN ROAD 7120 .2 .0 * .4 .1 400
YOUNTS PEAK 8350 .0 .2 0* 1.1 .1 1100
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Basin wide percent of average 21* 264
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0* .0 .1 0
BIG GOOSE 7990 .1 .0 * .0 .1 0
BONE SPRINGS DIV 9350 2.3 .6 383* .1 .2 50
BURGESS JUNCTION 7880 .0 .3 0* .0 .1 0
CLOUD PEAK RESERVOIR 9860 .2 .1 200* .0 .2 0
DOME LAKE 8880 .0 .4 0* .0 .2 0
GRAVE SPRINGS 8550 .0 .1 0* .1 .1 100
HANSEN SAWMILL 8360 .2 .1 200* .0 .1 0
MIDDLE POWDER 7760 .4 .3 133* .2 .2 100
POWDER RIVER PASS 9480 .3 .3 100* .1 .1 100
SUCKER CREEK 8880 .0 .2 0* .0 .2 0
TIE CREEK 6870 .0 .0 100* .1 .2 50
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Basin wide percent of average 136* 33
BELLE FOURCHE
BLIND PARK 6890 -M .0 * .0 .2 0
COLE CANYON 5910 .0 .0 100* .0 -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 .1 .0 * .3 .2 150
DIVIDE PEAK 8860 .1 .2 50* .2 .2 100
ELK RIVER 8700 .2 .0 * .1 .1 100
JOE WRIGHT 10120 .0 .2 0* .0 .2 0
NORTH FRENCH CREEK 10130 .3 .3 100* .2 .2 100
OLD BATTLE 9920 1.2 .3 400* .3 .2 150
SAGE CREEK BASIN 7850 .4 .0 * .3 .1 300
SOUTH BRUSH CREEK 8440 .1 .0 * .3 .2 150
TOWER 10500 .3 .2 150* .2 .3 67
WEBBER SPRINGS 9250 .2 .2 100* .2 .2 100
WILLOW CREEK PASS 9540 .0 .0 100* .0 .1 0
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Basin wide percent of average 150* 105
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .3 .3 100* .0 .2 0
CASPER MTN. 7850 .3 .1 300* .0 .2 0
DEADMAN HILL 10220 .7 .3 233* .0 .2 0
DEER PARK 9700 .2 .4 50* .4 .2 200
LAPRELE CREEK 8375 .2 .0 * .2 .1 200
RENO HILL 8500 .7 .1 700* .0 .2 0
ROACH 9700 .1 .0 * .0 .2 0
SAND LAKE 10050 1.8 .5 360* .2 .2 100
SOUTH PASS 9040 .0 .1 0* .4 .1 400
WINDY PEAK 7900 .3 .0 * .1 .1 100
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Basin wide percent of average 222* 76
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .4 .0 * .3 .1 300
DIVIDE PEAK 8860 .1 .2 50* .2 .2 100
OLD BATTLE 9920 1.2 .3 400* .3 .2 150
SANDSTONE RS 8150 -M .0 * -M .2 *
WHISKEY PARK 8950 .0 .1 0* .2 .2 100
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Basin wide percent of average 217* 143
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .1 100* .3 .1 300
BLIND BULL SUM 8900 .1 .1 100* .3 .1 300
EAST RIM DIVIDE 7930 .4 .0 * .4 .1 400
ELKHART PARK G.S. 9400 .0 .0 100* .2 .1 200
GROS VENTRE SUMMIT 8750 .1 .1 100* .2 .1 200
KENDALL R.S. 7740 .1 .0 * .5 .1 500
LOOMIS PARK 8240 .1 .0 * .3 .1 300
NEW FORK LAKE 8340 .0 .0 100* .6 .1 600
SNIDER BASIN 8060 .1 .0 * .2 .1 200
SPRING CREEK DIVIDE 9000 .0 .0 100* .2 .2 100
TRIPLE PEAK 8500 .1 .0 * .2 .1 200
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Basin wide percent of average 100* 283
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .2 .1 200
HEWINTA 9500 .0 .1 0* .2 .2 100
HICKERSON PARK 9100 .0 .0 100* .0 .1 0
HOLE-IN-ROCK 9150 1.0 .0 * .0 .1 0
INDIAN CREEK 9425 .0 .1 0* .2 .2 100
KELLEY R.S. 8180 .1 .0 * .2 .1 200
STEEL CREEK PARK 10100 .8 .4 200* .2 .2 100
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Basin wide percent of average 133* 100
UPPER BEAR RIVER
BUG LAKE 7950 .3 .2 150* .0 .2 0
HAYDEN FORK 9100 .0 .1 0* .6 .2 300
KELLEY R.S. 8180 .1 .0 * .2 .1 200
LILY LAKE 9050 .0 .1 0* .4 .2 200
MONTE CRISTO 8960 .1 .3 33* .3 .2 150
SALT RIVER SUMMIT 7600 .0 .0 100* .3 .1 300
TRIAL LAKE 9960 .1 .4 25* .8 .2 400
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Basin wide percent of average 45* 217
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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.