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 14 , 2001
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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 .6 .0 * 1.0 .8 125
COTTONWOOD CREEK 7600 1.0 .0 * 1.1 .9 122
GRANITE CREEK 6770 .6 .0 * .6 1.0 60
GRASSY LAKE 7265 1.5 .0 * 1.6 1.4 114
GROS VENTRE SUMMIT 8775 .6 .0 * .3 .7 43
LEWIS LAKE DIVIDE 7860 1.3 .0 * 1.4 1.4 100
PHILLIPS BENCH 8200 1.1 .0 * 1.1 1.1 100
SALT RIVER SUMMIT 7600 .5 .0 * .7 .7 100
SNAKE RIVER STATION 6920 .8 .0 * 1.0 1.0 100
SPRING CREEK DIVIDE 9000 1.3 .0 * 1.2 .9 133
THUMB DIVIDE 7980 .8 .0 * .8 .8 100
TOGWOTEE PASS 9580 1.2 .9 133* 1.4 1.0 140
TWO OCEAN PLATEAU 9360 1.4 1.2 117* .8 1.2 67
WILLOW CREEK 8450 .6 .0 * 1.0 1.2 83
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Basin wide percent of average 124* 99
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.4 1.4 100* 1.2 .8 150
BLACK BEAR 7950 2.4 1.1 218* 2.7 1.5 180
CANYON 7940 .8 .2 400* 1.0 .8 125
FISHER CREEK 9100 1.5 .9 167* 1.5 1.3 115
MADISON PLATEAU 7750 1.3 .5 260* 1.6 1.0 160
NORTHEAST ENTRANCE 7350 .2 .0 * .5 .6 83
PARKER PEAK 9400 -M 1.6 * -M .9 *
SYLVAN LAKE 8420 1.6 1.1 145* 1.7 1.1 155
THUMB DIVIDE 7980 .8 .0 * .8 .8 100
TWO OCEAN PLATEAU 9360 1.4 1.2 117* .8 1.2 67
WHISKEY CREEK 6800 1.0 .2 500* 1.0 .9 111
WHITE MILL 8700 -M .8 * -M 1.1 *
WOLVERINE 7650 .3 .1 300* 1.2 .7 171
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Basin wide percent of average 175* 131
WIND RIVER
BURROUGHS CREEK 8750 .5 .3 167* .7 .7 100
COLD SPRINGS 9630 .1 .3 33* .1 .8 12
DEER PARK 9700 .7 -M * .7 -M *
HOBBS PARK 10100 .4 .8 50* .4 .8 50
LITTLE WARM 9620 .4 .4 100* .6 .8 75
SOUTH PASS 9040 .5 1.2 42* .7 .9 78
ST. LAWRENCE ALT 8620 .2 .3 67* .3 .7 43
TOGWOTEE PASS 9580 1.2 .9 133* 1.4 1.0 140
TOWNSEND CREEK 8700 .3 .3 100* -M .8 *
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Basin wide percent of average 80* 74
BIGHORN BASIN
BALD MTN. 9375 1.7 1.3 131* 1.7 1.0 170
BEAR TRAP MEADOW 7900 .7 .2 350* 1.1 .7 157
BLACKWATER 9780 .5 1.3 38* .5 1.0 50
BONE SPRINGS DIV 9350 1.8 1.6 112* 2.0 .9 222
EVENING STAR 9200 .8 1.6 50* 1.4 1.2 117
GRAVE SPRINGS 8550 1.0 .5 200* 2.0 .8 250
KIRWIN 9550 .6 .7 86* .6 .7 86
MARQUETTE 8760 .1 .5 20* .4 .8 50
MIDDLE POWDER 7760 1.3 .6 217* 1.5 .9 167
OWL CREEK 8975 .1 .4 25* .3 .4 75
POWDER RIVER PASS 9480 .6 .5 120* 1.4 .8 175
SHELL CREEK 9580 1.9 1.4 136* 1.8 .8 225
SYLVAN LAKE 8420 1.6 1.1 145* 1.7 1.1 155
SYLVAN ROAD 8120 .7 .6 117* 1.3 .9 144
TIMBER CREEK 7950 .0 .1 0* .4 .5 80
YOUNTS PEAK 8350 .9 1.0 90* .7 .8 87
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Basin wide percent of average 107* 141
SHOSHONE RIVER
BLACKWATER 9780 .5 1.3 38* .5 1.0 50
EVENING STAR 9200 .8 1.6 50* 1.4 1.2 117
KIRWIN 9550 .6 .7 86* .6 .7 86
MARQUETTE 8760 .1 .5 20* .4 .8 50
SYLVAN LAKE 8420 1.6 1.1 145* 1.7 1.1 155
SYLVAN ROAD 8120 .7 .6 117* 1.3 .9 144
YOUNTS PEAK 8350 .9 1.0 90* .7 .8 87
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Basin wide percent of average 76* 102
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .7 .2 350* 1.1 .7 157
BIG GOOSE 7990 1.0 -M * 2.2 -M *
BONE SPRINGS DIV 9350 1.8 1.6 112* 2.0 .9 222
BURGESS JUNCTION 7880 .9 .7 129* 1.7 .8 212
CLOUD PEAK RESERVOIR 9860 .9 .6 150* 2.2 .9 244
DOME LAKE 8880 1.3 .9 144* 2.2 1.0 220
GRAVE SPRINGS 8550 1.0 .5 200* 2.0 .8 250
HANSEN SAWMILL 8760 .1 .3 33* .9 .7 129
MIDDLE POWDER 7760 1.3 .6 217* 1.5 .9 167
POWDER RIVER PASS 9480 .6 .5 120* 1.4 .8 175
SUCKER CREEK 8880 1.4 .6 233* 2.5 .9 278
TIE CREEK 6870 .4 -M * 1.8 .8 225
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Basin wide percent of average 154* 210
BELLE FOURCHE
BLIND PARK 6890 .6 .8 75* 1.9 .8 237
COLE CANYON 5910 .0 .0 100* .7 .6 117
NORTH RAPID CREEK 6130 .4 -M * 1.5 -M *
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Basin wide percent of average 75* 186
UPPER N. PLATTE RIVER
COLUMBINE 9400 1.0 .5 200* 1.7 1.0 170
DIVIDE PEAK 8800 1.1 .6 183* 1.4 1.3 108
ELK RIVER 8700 .1 .0 * 1.3 1.0 130
JOE WRIGHT 10120 .7 1.0 70* 1.4 1.5 93
NORTH FRENCH CREEK 10100 2.6 .6 433* 2.2 1.0 220
OLD BATTLE 10000 1.2 1.7 71* 1.8 1.3 138
SOUTH BRUSH CREEK 8400 .5 .1 500* 1.3 1.0 130
TOWER 10500 2.5 2.0 125* 2.2 1.7 129
WEBBER SPRINGS 9200 1.0 .5 200* 1.2 1.3 92
WILLOW CREEK PASS 9540 .0 .2 0* .3 .8 37
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Basin wide percent of average 147* 124
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.1 .8 138* 1.3 1.0 130
CASPER MTN. 7900 2.0 .4 500* 2.5 1.0 250
DEADMAN HILL 10220 .4 .4 100* .9 1.0 90
DEER PARK 9700 .7 -M * .7 -M *
LAPRELE CREEK 8320 1.3 .1 1300* 2.4 .6 400
RENO HILL 8400 2.0 .6 333* 2.2 1.0 220
ROACH 9700 .5 .4 125* .8 1.1 73
SAND LAKE 10080 2.2 .8 275* 2.0 1.1 182
SOUTH PASS 9040 .5 1.2 42* .7 .9 78
WINDY PEAK 7840 .6 .0 * 1.8 .5 360
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Basin wide percent of average 213* 178
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * 1.5 .8 188
DIVIDE PEAK 8800 1.1 .6 183* 1.4 1.3 108
OLD BATTLE 10000 1.2 1.7 71* 1.8 1.3 138
SANDSTONE RS 8150 .0 .0 100* 1.8 .7 257
WHISKEY PARK 8950 1.2 .6 200* 2.0 .8 250
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Basin wide percent of average 121* 173
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .3 .0 * .1 .7 14
BLIND BULL SUM 8650 1.2 .0 * .8 .8 100
EAST RIM DIVIDE 7930 .4 .0 * .3 .6 50
ELKHART PARK G.S. 9400 .2 .0 * .3 .7 43
GROS VENTRE SUMMIT 8775 .6 .0 * .3 .7 43
KENDALL R.S. 7740 .0 .0 100* .3 .6 50
LOOMIS PARK 8240 .7 .0 * .6 .8 75
NEW FORK LAKE 8340 .3 .0 * .3 .6 50
SNIDER BASIN 8250 .9 .0 * .6 .6 100
SPRING CREEK DIVIDE 9000 1.3 .0 * 1.2 .9 133
TRIPLE PEAK 8500 .7 .0 * .9 1.2 75
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Basin wide percent of average * 70
LOWER GREEN RIVER
HAMS FORK 7840 .2 .0 * .1 .5 20
HEWINTA 9500 -M .1 * 1.2 1.0 120
HICKERSON PARK 9150 .1 .0 * .6 .9 67
HOLE-IN-ROCK 9150 .0 .0 100* 1.3 .9 144
INDIAN CREEK 9425 .7 .0 * .6 1.0 60
KELLEY R.S. 8180 .5 .0 * .5 .8 62
STEEL CREEK PARK 10100 .7 .8 87* .9 1.0 90
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Basin wide percent of average 87* 85
UPPER BEAR RIVER
BUG LAKE 7950 .0 .6 0* .4 1.4 29
HAYDEN FORK 9400 .1 .3 33* 1.0 1.0 100
KELLEY R.S. 8180 .5 .0 * .5 .8 62
LILY LAKE 9050 .2 .4 50* 1.1 1.1 100
MONTE CRISTO 8960 -M .7 * 1.0 1.5 67
SALT RIVER SUMMIT 7600 .5 .0 * .7 .7 100
TRIAL LAKE 9960 .4 .7 57* 1.3 1.2 108
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Basin wide percent of average 35* 78
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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.