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 5 , 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 * .7 .3 233
COTTONWOOD CREEK 7600 .0 .0 100* .3 .4 75
GRANITE CREEK 6770 .1 .0 * .6 .2 300
GRASSY LAKE 7265 .2 .1 200* 1.4 .5 280
GROS VENTRE SUMMIT 8750 .2 .2 100* .3 .2 150
LEWIS LAKE DIVIDE 7850 -M .0 * 1.0 .4 250
PHILLIPS BENCH 8200 .0 .1 0* .9 .3 300
SALT RIVER SUMMIT 7600 .0 .0 100* .4 .3 133
SNAKE RIVER STATION 6920 .1 .0 * .8 .3 267
SPRING CREEK DIVIDE 9000 .0 .1 0* .4 .3 133
THUMB DIVIDE 7980 .0 .0 100* .7 .3 233
TOGWOTEE PASS 9580 .0 .3 0* .3 .4 75
TWO OCEAN PLATEAU 9240 .1 .3 33* .7 .4 175
WILLOW CREEK 8450 .1 .1 100* .6 .5 120
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Basin wide percent of average 50* 190
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .1 .7 14* .3 .3 100
BLACK BEAR 8170 .3 .4 75* 1.3 .5 260
CANYON 8090 .2 .1 200* .9 .2 450
FISHER CREEK 9100 .2 .5 40* .4 .4 100
MADISON PLATEAU 7750 .2 .3 67* 1.0 .3 333
NORTHEAST ENTRANCE 7350 .0 .0 100* .9 .2 450
PARKER PEAK 9400 .1 .7 14* .5 .3 167
SYLVAN LAKE 8420 .0 .5 0* 1.2 .3 400
THUMB DIVIDE 7980 .0 .0 100* .7 .3 233
TWO OCEAN PLATEAU 9240 .1 .3 33* .7 .4 175
WHISKEY CREEK 6800 .2 .1 200* -M .3 *
WHITE MILL 8700 .1 .3 33* .7 .4 175
WOLVERINE 7650 .0 .0 100* .4 .2 200
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Basin wide percent of average 38* 237
WIND RIVER
BURROUGHS CREEK 8750 -M .2 * -M .2 *
COLD SPRINGS 9630 .0 .2 0* .1 .3 33
DEER PARK 9700 .2 .4 50* .8 .3 267
HOBBS PARK 10100 .2 .4 50* .1 .3 33
LITTLE WARM 9370 .0 .3 0* .3 .2 150
SOUTH PASS 9040 .0 .2 0* .8 .3 267
ST. LAWRENCE ALT 8620 .2 .1 200* .1 .2 50
TOGWOTEE PASS 9580 .0 .3 0* .3 .4 75
TOWNSEND CREEK 8700 .3 .1 300* .4 .3 133
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Basin wide percent of average 45* 126
BIGHORN BASIN
BALD MTN. 9380 1.7 .9 189* .2 .3 67
BEAR TRAP MEADOW 8200 .0 .1 0* .2 .2 100
BLACKWATER 9780 .1 .9 11* .3 .4 75
BONE SPRINGS DIV 9350 2.1 .7 300* .3 .3 100
EVENING STAR 9200 .3 .6 50* .5 .4 125
GRAVE SPRINGS 8550 .1 .1 100* .1 .3 33
KIRWIN 9550 .3 .5 60* .4 .2 200
MARQUETTE 8760 .1 .5 20* .3 .3 100
MIDDLE POWDER 7760 .4 .3 133* .2 .3 67
OWL CREEK 8975 .1 .2 50* .2 .2 100
POWDER RIVER PASS 9480 .2 .4 50* .2 .3 67
SHELL CREEK 9580 3.2 1.0 320* .2 .3 67
SYLVAN LAKE 8420 .0 .5 0* 1.2 .3 400
SYLVAN ROAD 7120 .2 .0 * .7 .3 233
TIMBER CREEK 7950 .0 .0 100* .3 .2 150
YOUNTS PEAK 8350 .1 .2 50* .6 .2 300
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Basin wide percent of average 126* 131
SHOSHONE RIVER
BLACKWATER 9780 .1 .9 11* .3 .4 75
EVENING STAR 9200 .3 .6 50* .5 .4 125
KIRWIN 9550 .3 .5 60* .4 .2 200
MARQUETTE 8760 .1 .5 20* .3 .3 100
SYLVAN LAKE 8420 .0 .5 0* 1.2 .3 400
SYLVAN ROAD 7120 .2 .0 * .7 .3 233
YOUNTS PEAK 8350 .1 .2 50* .6 .2 300
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Basin wide percent of average 28* 190
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .1 0* .2 .2 100
BIG GOOSE 7990 .1 .1 100* .0 .3 0
BONE SPRINGS DIV 9350 2.1 .7 300* .3 .3 100
BURGESS JUNCTION 7880 .0 .4 0* .3 .3 100
CLOUD PEAK RESERVOIR 9860 .2 .2 100* .1 .3 33
DOME LAKE 8880 .0 .4 0* .1 .3 33
GRAVE SPRINGS 8550 .1 .1 100* .1 .3 33
HANSEN SAWMILL 8360 .2 .1 200* .0 .2 0
MIDDLE POWDER 7760 .4 .3 133* .2 .3 67
POWDER RIVER PASS 9480 .2 .4 50* .2 .3 67
SUCKER CREEK 8880 .2 .3 67* .2 .3 67
TIE CREEK 6870 .0 .0 100* .3 .3 100
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Basin wide percent of average 113* 59
BELLE FOURCHE
BLIND PARK 6890 -M .0 * .0 .3 0
COLE CANYON 5910 .0 .0 100* .0 -M *
NORTH RAPID CREEK 6130 .0 .0 100* .0 .3 0
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Basin wide percent of average * 0
UPPER N. PLATTE RIVER
COLUMBINE 9160 .1 .0 * .6 .3 200
DIVIDE PEAK 8860 .1 .3 33* .5 .4 125
ELK RIVER 8700 .3 .0 * .2 .3 67
JOE WRIGHT 10120 .0 .3 0* .3 .5 60
NORTH FRENCH CREEK 10130 .1 .5 20* .5 .5 100
OLD BATTLE 9920 .4 .5 80* .6 .5 120
SAGE CREEK BASIN 7850 .2 .1 200* .4 .2 200
SOUTH BRUSH CREEK 8440 .1 .1 100* .4 .3 133
TOWER 10500 .1 .4 25* .6 .5 120
WEBBER SPRINGS 9250 .1 .2 50* .4 .4 100
WILLOW CREEK PASS 9540 .1 .1 100* .1 .3 33
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Basin wide percent of average 48* 110
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .3 .4 75* .2 .3 67
CASPER MTN. 7850 .3 .2 150* .0 .3 0
DEADMAN HILL 10220 .2 .4 50* .1 .3 33
DEER PARK 9700 .2 .4 50* .8 .3 267
LAPRELE CREEK 8375 .1 .1 100* .1 .3 33
RENO HILL 8500 .0 .2 0* .0 .3 0
ROACH 9700 .1 .1 100* .3 .3 100
SAND LAKE 10050 1.2 .7 171* .4 .4 100
SOUTH PASS 9040 .0 .2 0* .8 .3 267
WINDY PEAK 7900 .2 .0 * .1 .2 50
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Basin wide percent of average 89* 93
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .3 .0 * .4 .3 133
DIVIDE PEAK 8860 .1 .3 33* .5 .4 125
OLD BATTLE 9920 .4 .5 80* .6 .5 120
SANDSTONE RS 8150 -M .0 * -M .3 *
WHISKEY PARK 8950 .0 .1 0* .3 .4 75
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Basin wide percent of average 56* 112
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .1 100* .5 .2 250
BLIND BULL SUM 8900 .2 .1 200* .4 .3 133
EAST RIM DIVIDE 7930 .4 .0 * .5 .2 250
ELKHART PARK G.S. 9400 .0 .1 0* .3 .3 100
GROS VENTRE SUMMIT 8750 .2 .2 100* .3 .2 150
KENDALL R.S. 7740 .1 .0 * .7 .2 350
LOOMIS PARK 8240 .0 .1 0* .4 .2 200
NEW FORK LAKE 8340 .0 .0 100* 1.0 .2 500
SNIDER BASIN 8060 .1 .0 * .4 .2 200
SPRING CREEK DIVIDE 9000 .0 .1 0* .4 .3 133
TRIPLE PEAK 8500 .1 .1 100* .5 .3 167
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Basin wide percent of average 75* 208
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .3 .2 150
HEWINTA 9500 .2 .1 200* .6 .3 200
HICKERSON PARK 9100 .1 .0 * .1 .2 50
HOLE-IN-ROCK 9150 .0 .0 100* .3 .2 150
INDIAN CREEK 9425 .0 .1 0* .4 .3 133
KELLEY R.S. 8180 .1 .1 100* .3 .3 100
STEEL CREEK PARK 10100 .8 .4 200* 1.0 .3 333
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Basin wide percent of average 157* 167
UPPER BEAR RIVER
BUG LAKE 7950 .3 .3 100* .1 .3 33
HAYDEN FORK 9100 .0 .2 0* 1.3 .3 433
KELLEY R.S. 8180 .1 .1 100* .3 .3 100
LILY LAKE 9050 .0 .2 0* .7 .3 233
MONTE CRISTO 8960 .0 .3 0* .4 .4 100
SALT RIVER SUMMIT 7600 .0 .0 100* .4 .3 133
TRIAL LAKE 9960 .0 .4 0* 1.2 .4 300
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Basin wide percent of average 27* 191
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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.