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 WEDNESDAY: OCTOBER 24 , 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 .5 .4 125* 2.5 1.5 167
COTTONWOOD CREEK 7600 .8 .4 200* 2.4 1.6 150
GRANITE CREEK 6770 .5 .3 167* 2.5 1.7 147
GRASSY LAKE 7265 1.3 .6 217* 2.8 2.4 117
GROS VENTRE SUMMIT 8775 1.5 .6 250* 1.3 1.2 108
LEWIS LAKE DIVIDE 7860 1.8 .7 257* 2.5 2.5 100
PHILLIPS BENCH 8200 2.4 .6 400* 2.8 1.9 147
SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 1.3 92
SNAKE RIVER STATION 6920 .0 .3 0* 2.0 1.7 118
SPRING CREEK DIVIDE 9000 2.7 .7 386* 2.9 1.6 181
THUMB DIVIDE 7980 .7 .3 233* 1.5 1.4 107
TOGWOTEE PASS 9580 3.0 1.7 176* 3.2 1.9 168
TWO OCEAN PLATEAU 9360 3.0 2.5 120* 2.6 2.1 124
WILLOW CREEK 8450 .9 .6 150* 2.5 2.1 119
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Basin wide percent of average 197* 131
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 3.1 2.3 135* 2.8 1.4 200
BLACK BEAR 7950 3.2 2.0 160* 3.9 2.6 150
CANYON 7940 1.1 .5 220* 1.6 1.3 123
FISHER CREEK 9100 3.6 1.8 200* 3.7 2.2 168
MADISON PLATEAU 7750 1.4 1.0 140* 2.5 1.9 132
NORTHEAST ENTRANCE 7350 .0 .2 0* 1.3 1.1 118
PARKER PEAK 9400 1.8 2.8 64 1.3 1.6 81
SYLVAN LAKE 8420 2.0 1.8 111* 2.7 1.9 142
THUMB DIVIDE 7980 .7 .3 233* 1.5 1.4 107
TWO OCEAN PLATEAU 9360 3.0 2.5 120* 2.6 2.1 124
WHISKEY CREEK 6800 1.1 .5 220* 1.7 1.6 106
WHITE MILL 8700 3.1 1.4 221* 2.9 2.0 145
WOLVERINE 7650 .2 .2 100* 1.8 1.2 150
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Basin wide percent of average 140* 136
WIND RIVER
BURROUGHS CREEK 8750 2.1 .6 350* 2.2 1.2 183
COLD SPRINGS 9630 .3 .6 50* .8 1.4 57
DEER PARK 9700 1.4 -M * 1.7 -M *
HOBBS PARK 10100 1.1 1.5 73* 1.0 1.5 67
LITTLE WARM 9620 1.3 .7 186* 1.7 1.3 131
SOUTH PASS 9040 .5 2.0 25 1.2 1.6 75
ST. LAWRENCE ALT 8620 .0 .6 0* .5 1.3 38
TOGWOTEE PASS 9580 3.0 1.7 176* 3.2 1.9 168
TOWNSEND CREEK 8700 .1 .7 14* .4 1.4 29
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Basin wide percent of average 100* 95
BIGHORN BASIN
BALD MTN. 9375 3.4 2.0 170* 3.2 1.7 188
BEAR TRAP MEADOW 7900 1.0 .5 200* 1.9 1.2 158
BLACKWATER 9780 2.1 1.9 111* 1.9 1.8 106
BONE SPRINGS DIV 9350 3.2 2.2 145 3.3 1.6 206
EVENING STAR 9200 2.7 2.8 96* 3.5 2.2 159
GRAVE SPRINGS 8550 1.0 .8 125* 2.3 1.4 164
KIRWIN 9550 1.6 1.1 145* 1.6 1.2 133
MARQUETTE 8760 .5 .8 62* .4 1.3 31
MIDDLE POWDER 7760 1.3 1.0 130* 2.2 1.6 138
OWL CREEK 8975 .0 .5 0* .3 .7 43
POWDER RIVER PASS 9480 1.8 .9 200* 2.9 1.4 207
SHELL CREEK 9580 3.4 2.0 170 3.2 1.4 229
SYLVAN LAKE 8420 2.0 1.8 111* 2.7 1.9 142
SYLVAN ROAD 8120 .6 1.1 55* 2.6 1.6 162
TIMBER CREEK 7950 .2 .2 100* 1.0 1.0 100
YOUNTS PEAK 8350 1.9 1.7 112* 1.8 1.4 129
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Basin wide percent of average 125* 149
SHOSHONE RIVER
BLACKWATER 9780 2.1 1.9 111* 1.9 1.8 106
EVENING STAR 9200 2.7 2.8 96* 3.5 2.2 159
KIRWIN 9550 1.6 1.1 145* 1.6 1.2 133
MARQUETTE 8760 .5 .8 62* .4 1.3 31
SYLVAN LAKE 8420 2.0 1.8 111* 2.7 1.9 142
SYLVAN ROAD 8120 .6 1.1 55* 2.6 1.6 162
YOUNTS PEAK 8350 1.9 1.7 112* 1.8 1.4 129
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Basin wide percent of average 102* 127
POWDER-TONGUE
BEAR TRAP MEADOW 7900 1.0 .5 200* 1.9 1.2 158
BIG GOOSE 7990 1.4 -M * 3.1 -M *
BONE SPRINGS DIV 9350 3.2 2.2 145 3.3 1.6 206
BURGESS JUNCTION 7880 1.6 1.2 133* 2.8 1.5 187
CLOUD PEAK RESERVOIR 9860 2.1 1.0 210* 3.7 1.6 231
DOME LAKE 8880 2.3 1.4 164* 3.6 1.7 212
GRAVE SPRINGS 8550 1.0 .8 125* 2.3 1.4 164
HANSEN SAWMILL 8760 .4 .6 67* 1.9 1.2 158
MIDDLE POWDER 7760 1.3 1.0 130* 2.2 1.6 138
POWDER RIVER PASS 9480 1.8 .9 200* 2.9 1.4 207
SUCKER CREEK 8880 2.5 .9 278* 4.0 1.6 250
TIE CREEK 6870 .0 -M * 2.7 1.4 193
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Basin wide percent of average 164* 193
BELLE FOURCHE
BLIND PARK 6890 .1 1.2 8 2.3 1.3 177
COLE CANYON 5910 .0 .5 0* .9 1.0 90
NORTH RAPID CREEK 6130 .2 -M * 2.1 -M *
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Basin wide percent of average 6* 139
UPPER N. PLATTE RIVER
COLUMBINE 9400 .2 1.1 18* 1.7 1.9 89
DIVIDE PEAK 8800 .5 1.4 36* .8 2.3 35
ELK RIVER 8700 .0 .2 0* 1.4 1.7 82
JOE WRIGHT 10120 1.5 2.2 68* 1.9 2.6 73
NORTH FRENCH CREEK 10100 2.5 1.4 179* 2.6 1.7 153
OLD BATTLE 10000 .9 2.8 32* 1.8 2.4 75
SOUTH BRUSH CREEK 8400 .1 .3 33* 1.3 1.7 76
TOWER 10500 1.7 4.2 40* 2.1 3.0 70
WEBBER SPRINGS 9200 .2 1.2 17* 1.6 2.2 73
WILLOW CREEK PASS 9540 -M .7 * .3 1.3 23
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Basin wide percent of average 51* 75
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.6 1.4 114* 2.5 1.8 139
CASPER MTN. 7900 2.0 .9 222* 3.0 1.9 158
DEADMAN HILL 10220 .6 .9 67* 1.1 1.8 61
DEER PARK 9700 1.4 -M * 1.7 -M *
LAPRELE CREEK 8320 .9 .5 180* 2.8 1.1 255
RENO HILL 8400 2.0 1.2 167* 2.8 1.9 147
ROACH 9700 .3 .9 33* 1.2 2.0 60
SAND LAKE 10080 2.8 2.1 133* 3.0 1.9 158
SOUTH PASS 9040 .5 2.0 25 1.2 1.6 75
WINDY PEAK 7840 .1 .1 100* 2.1 .9 233
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Basin wide percent of average 108* 132
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .2 0* .8 1.3 62
DIVIDE PEAK 8800 .5 1.4 36* .8 2.3 35
OLD BATTLE 10000 .9 2.8 32* 1.8 2.4 75
SANDSTONE RS 8150 -M .4 * 1.6 1.3 123
WHISKEY PARK 8950 .6 1.5 40* 2.0 1.4 143
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Basin wide percent of average 34* 80
UPPER GREEN RIVER
BIG SANDY OPENING 9100 1.4 .4 350* 1.0 1.2 83
BLIND BULL SUM 8650 3.0 1.2 250* 2.5 1.5 167
EAST RIM DIVIDE 7930 .6 .2 300* 1.1 1.1 100
ELKHART PARK G.S. 9400 -M .5 * -M 1.2 *
GROS VENTRE SUMMIT 8775 1.5 .6 250* 1.3 1.2 108
KENDALL R.S. 7740 .7 .0 * 1.6 1.1 145
LOOMIS PARK 8240 1.9 .3 633* 2.1 1.3 162
NEW FORK LAKE 8340 .8 .0 * 1.2 1.0 120
SNIDER BASIN 8250 1.2 .0 * 2.1 1.1 191
SPRING CREEK DIVIDE 9000 2.7 .7 386* 2.9 1.6 181
TRIPLE PEAK 8500 2.6 .5 520* 3.5 2.1 167
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Basin wide percent of average 351* 146
LOWER GREEN RIVER
HAMS FORK 7840 .1 .0 * .3 1.0 30
HEWINTA 9500 .1 .2 50* 1.9 1.8 106
HICKERSON PARK 9150 .0 .1 0* .7 1.6 44
HOLE-IN-ROCK 9150 .0 .1 0* 1.0 1.6 62
INDIAN CREEK 9425 1.5 .9 167* 1.1 1.7 65
KELLEY R.S. 8180 .2 .3 67* .7 1.3 54
STEEL CREEK PARK 10100 .9 1.4 64* 1.0 1.8 56
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Basin wide percent of average 90* 62
UPPER BEAR RIVER
BUG LAKE 7950 -M .9 * .6 2.4 25
HAYDEN FORK 9400 .2 .6 33* 1.4 1.9 74
KELLEY R.S. 8180 .2 .3 67* .7 1.3 54
LILY LAKE 9050 .0 .7 0* 1.3 2.0 65
MONTE CRISTO 8960 .0 1.1 0* 1.0 2.6 38
SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 1.3 92
TRIAL LAKE 9960 .1 1.3 8* 1.8 2.2 82
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Basin wide percent of average 12* 58
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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.