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 12 , 1997
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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 .4 .0 * 1.3 .7 186
COTTONWOOD CREEK 7600 .3 .0 * 1.6 .8 200
GRANITE CREEK 6770 .2 .0 * .5 .8 62
GRASSY LAKE 7265 .6 .0 * 2.3 1.2 192
GROS VENTRE SUMMIT 8775 .3 .0 * .8 .6 133
LEWIS LAKE DIVIDE 7860 .7 .0 * 1.5 1.2 125
PHILLIPS BENCH 8200 .3 .0 * 1.0 .9 111
SALT RIVER SUMMIT 7600 .3 .0 * 1.3 .6 217
SNAKE RIVER STATION 6920 -M .0 * -M .8 *
SPRING CREEK DIVIDE 9000 .2 .0 * .8 .7 114
THUMB DIVIDE 7980 -M .0 * -M .7 *
TOGWOTEE PASS 9580 1.1 .8 138* 1.1 .9 122
TWO OCEAN PLATEAU 9360 1.3 1.0 130* 1.9 1.0 190
WILLOW CREEK 8450 .8 .0 * 2.7 1.0 270
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Basin wide percent of average 133* 162
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .8 1.3 62* .9 .7 129
BLACK BEAR 7950 1.8 1.0 180* 2.2 1.2 183
CANYON 7940 .7 .2 350* 1.1 .6 183
FISHER CREEK 9100 1.9 .8 238* 1.6 1.1 145
MADISON PLATEAU 7750 .7 .4 175* 1.7 .9 189
NORTHEAST ENTRANCE 7350 .0 .0 100* 1.6 .5 320
PARKER PEAK 9400 1.4 1.5 93* 1.8 .8 225
SYLVAN LAKE 8420 1.5 1.0 150* 3.0 .9 333
THUMB DIVIDE 7980 -M .0 * -M .7 *
TWO OCEAN PLATEAU 9360 1.3 1.0 130* 1.9 1.0 190
WHISKEY CREEK 6800 .1 .2 50* 1.5 .8 188
WHITE MILL 8700 1.3 .7 186* 1.7 1.0 170
WOLVERINE 7650 .1 .1 100* 1.6 .6 267
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Basin wide percent of average 141* 204
WIND RIVER
BURROUGHS CREEK 8750 .1 .3 33* .6 .6 100
COLD SPRINGS 9630 .0 .3 0* .4 .7 57
DEER PARK 9700 .0 -M * .0 -M *
HOBBS PARK 10100 .3 .7 43* .3 .7 43
LITTLE WARM 9620 .2 .3 67* 1.1 .6 183
SOUTH PASS 9040 .5 1.1 45* 1.1 .8 138
ST. LAWRENCE ALT 8620 .2 .2 100* .6 .6 100
TOGWOTEE PASS 9580 1.1 .8 138* 1.1 .9 122
TOWNSEND CREEK 8700 .2 .2 100* .6 .7 86
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Basin wide percent of average 67* 104
BIGHORN BASIN
BALD MTN. 9375 1.7 1.2 142* 1.3 .8 162
BEAR TRAP MEADOW 7900 .0 .2 0* .3 .6 50
BLACKWATER 9780 .5 1.2 42* 1.0 .9 111
BONE SPRINGS DIV 9350 1.1 1.5 73* 1.5 .8 188
EVENING STAR 9200 .8 1.4 57* 1.9 1.0 190
GRAVE SPRINGS 8550 .2 -M * .8 .7 114
KIRWIN 9550 .5 .6 83* .6 .6 100
LOST CREEK 8080 -M .5 * -M .7 *
MARQUETTE 8760 1.0 .5 200* 1.3 .6 217
MIDDLE POWDER 7760 .7 .5 140* 1.0 .7 143
OWL CREEK 8975 .5 .4 125* .4 .4 100
POWDER RIVER PASS 9480 .1 .4 25* .6 .7 86
SHELL CREEK 9580 1.1 1.3 85* .9 .7 129
SYLVAN LAKE 8420 1.5 1.0 150* 3.0 .9 333
SYLVAN ROAD 8120 .0 .5 0* 1.6 .8 200
TIMBER CREEK 7950 -M .1 * 1.4 .5 280
YOUNTS PEAK 8350 .1 .9 11* .6 .7 86
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Basin wide percent of average 83* 160
SHOSHONE RIVER
BLACKWATER 9780 .5 1.2 42* 1.0 .9 111
EVENING STAR 9200 .8 1.4 57* 1.9 1.0 190
KIRWIN 9550 .5 .6 83* .6 .6 100
MARQUETTE 8760 1.0 .5 200* 1.3 .6 217
SYLVAN LAKE 8420 1.5 1.0 150* 3.0 .9 333
SYLVAN ROAD 8120 .0 .5 0* 1.6 .8 200
YOUNTS PEAK 8350 .1 .9 11* .6 .7 86
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Basin wide percent of average 72* 182
POWDER-TONGUE
BEAR TRAP MEADOW 7900 .0 .2 0* .3 .6 50
BONE SPRINGS DIV 9350 1.1 1.5 73* 1.5 .8 188
BURGESS JUNCTION 7880 .1 .6 17* 1.0 .7 143
CLOUD PEAK RESERVOIR 9860 .1 .5 20* 1.3 .7 186
DOME LAKE 8880 .3 .8 38* 1.2 .8 150
GRAVE SPRINGS 8550 .2 -M * .8 .7 114
HANSEN SAWMILL 8760 .0 .3 0* .8 .6 133
LOST CREEK 8080 -M .5 * -M .7 *
MIDDLE POWDER 7760 .7 .5 140* 1.0 .7 143
POWDER RIVER PASS 9480 .1 .4 25* .6 .7 86
SUCKER CREEK 8880 .1 .5 20* .8 .8 100
TIE CREEK 6870 .1 -M * .9 .7 129
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Basin wide percent of average 47* 131
BELLE FOURCHE
BLIND PARK 6890 .1 .7 14* .8 .6 133
NORTH RAPID CREEK 6130 .2 -M * .5 -M *
WARREN PEAK 6520 .1 .7 14* .8 .5 160
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Basin wide percent of average 14* 145
UPPER N. PLATTE RIVER
COLUMBINE 9400 .1 .4 25* 1.2 .9 133
DIVIDE PEAK 8800 .3 .5 60* 1.3 1.1 118
ELK RIVER 8700 .1 .0 * 1.5 .8 188
JOE WRIGHT 10120 .6 .9 67* 3.5 1.2 292
NORTH FRENCH CREEK 10100 .4 .5 80* 1.7 .8 212
OLD BATTLE 10000 1.1 1.5 73* 2.4 1.1 218
SOUTH BRUSH CREEK 8400 .4 .1 400* .8 .8 100
TOWER 10500 -M 1.7 * -M 1.4 *
WEBBER SPRINGS 9200 .3 .4 75* 1.6 1.1 145
WILLOW CREEK PASS 9540 .3 .2 150* .6 .6 100
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Basin wide percent of average 78* 174
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .0 .8 0* .4 .9 44
CASPER MTN. 7900 .4 .3 133* .7 .9 78
DEADMAN HILL 10220 .2 .3 67* .2 .9 22
DEER PARK 9700 .0 -M * .0 -M *
LAPRELE CREEK 8320 .1 .1 100* .5 .5 100
RENO HILL 8400 .2 .5 40* .5 .9 56
ROACH 9700 .1 .3 33* .8 1.0 80
SAND LAKE 10080 .4 .7 57* 1.1 .9 122
SOUTH PASS 9040 .5 1.1 45* 1.1 .8 138
WINDY PEAK 7840 .0 .0 100* .5 .4 125
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Basin wide percent of average 46* 81
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * 2.1 .6 350
DIVIDE PEAK 8800 .3 .5 60* 1.3 1.1 118
OLD BATTLE 10000 1.1 1.5 73* 2.4 1.1 218
SANDSTONE RS 8150 .0 .0 100* 1.8 .6 300
WHISKEY PARK 8950 .4 .5 80* 2.0 .7 286
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Basin wide percent of average 72* 234
UPPER GREEN RIVER
BIG SANDY OPENING 9100 .8 .0 * .9 .6 150
BLIND BULL SUM 8650 .3 .0 * 1.0 .7 143
EAST RIM DIVIDE 7930 .0 .0 100* .2 .5 40
ELKHART PARK G.S. 9400 .5 .0 * 1.1 .6 183
GROS VENTRE SUMMIT 8775 .3 .0 * .8 .6 133
KENDALL R.S. 7740 .0 .0 100* .7 .5 140
LOOMIS PARK 8240 .1 .0 * .5 .6 83
NEW FORK LAKE 8340 .1 .0 * .6 .5 120
SNIDER BASIN 8250 .2 .0 * .2 .5 40
SPRING CREEK DIVIDE 9000 .2 .0 * .8 .7 114
TRIPLE PEAK 8500 .2 .0 * .8 1.0 80
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Basin wide percent of average * 112
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .4 .5 80
HEWINTA 9500 .3 .1 300* 1.6 .9 178
HICKERSON PARK 9150 .0 .0 100* 1.4 .7 200
HOLE-IN-ROCK 9150 .0 .0 100* 1.4 .7 200
INDIAN CREEK 9425 .4 .0 * .4 .8 50
KELLEY R.S. 8180 .2 .0 * .6 .6 100
STEEL CREEK PARK 10100 .7 .7 100* 1.6 .9 178
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Basin wide percent of average 125* 145
UPPER BEAR RIVER
BUG LAKE 7950 .3 .5 60* 1.2 1.2 100
HAYDEN FORK 9400 .0 .3 0* 1.5 .9 167
KELLEY R.S. 8180 .2 .0 * .6 .6 100
LILY LAKE 9050 .5 .4 125* 1.3 1.0 130
MONTE CRISTO 8960 .9 .6 150* 1.5 1.2 125
SALT RIVER SUMMIT 7600 .3 .0 * 1.3 .6 217
TRIAL LAKE 9960 .7 .6 117* 1.3 1.0 130
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Basin wide percent of average 100* 134
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-M = Missing data
* = Data may not provide a valid measure of conditions.
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.