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 18 , 2005
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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 .0 .2 0* 1.3 1.2 108
COTTONWOOD CREEK 7600 .0 .3 0* 1.8 1.7 106
GRANITE CREEK 6770 .0 .2 0* .6 1.0 60
GRASSY LAKE 7265 .0 .5 0* 2.1 1.9 111
GROS VENTRE SUMMIT 8750 .7 .7 100* 1.2 1.0 120
LEWIS LAKE DIVIDE 7850 .0 .3 0* 1.7 1.8 94
PHILLIPS BENCH 8200 .0 .4 0* 1.1 1.4 79
SALT RIVER SUMMIT 7600 .0 .1 0* .9 1.1 82
SNAKE RIVER STATION 6920 .0 .1 0* 1.3 1.3 100
SPRING CREEK DIVIDE 9000 .0 .5 0* .5 1.5 33
THUMB DIVIDE 7980 .0 .2 0* 1.5 1.2 125
TOGWOTEE PASS 9580 1.6 1.3 123* 2.0 1.6 125
TWO OCEAN PLATEAU 9240 2.2 1.6 138* 2.2 1.8 122
WILLOW CREEK 8450 .0 .7 0* 2.7 2.1 129
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Basin wide percent of average 63* 101
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.2 1.5 80* 1.0 1.2 83
BLACK BEAR 8170 1.8 1.2 150* 2.6 2.0 130
CANYON 8090 .1 .3 33* 1.3 1.0 130
FISHER CREEK 9100 1.2 1.3 92* 1.3 1.9 68
MADISON PLATEAU 7750 .2 .6 33* 2.0 1.4 143
NORTHEAST ENTRANCE 7350 .0 .1 0* .8 .9 89
PARKER PEAK 9400 .8 1.4 57* 1.5 1.3 115
SYLVAN LAKE 8420 .1 1.1 9* 2.0 1.5 133
THUMB DIVIDE 7980 .0 .2 0* 1.5 1.2 125
TWO OCEAN PLATEAU 9240 2.2 1.6 138* 2.2 1.8 122
WHISKEY CREEK 6800 .1 .2 50* 1.3 1.3 100
WHITE MILL 8700 .6 .9 67* 1.2 1.5 80
WOLVERINE 7650 .1 .2 50* .8 1.0 80
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Basin wide percent of average 79* 108
WIND RIVER
BURROUGHS CREEK 8750 .7 .4 175* 1.7 .9 189
COLD SPRINGS 9630 .4 .4 100* 2.1 1.1 191
DEER PARK 9700 .2 1.1 18* 1.4 1.4 100
HOBBS PARK 10100 1.1 1.0 110* 2.1 1.2 175
LITTLE WARM 9370 1.2 .5 240* 2.0 1.0 200
SOUTH PASS 9040 .0 .6 0* 1.6 1.2 133
ST. LAWRENCE ALT 8620 .2 .2 100* 1.9 1.0 190
TOGWOTEE PASS 9580 1.6 1.3 123* 2.0 1.6 125
TOWNSEND CREEK 8700 .3 .4 75* 2.0 1.2 167
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Basin wide percent of average 97* 158
BIGHORN BASIN
BALD MTN. 9380 2.0 1.7 118* 2.1 1.4 150
BEAR TRAP MEADOW 8200 .2 .3 67* 1.9 1.0 190
BLACKWATER 9780 1.0 1.8 56* 1.5 1.5 100
BONE SPRINGS DIV 9350 2.0 1.5 133* 2.3 1.4 164
EVENING STAR 9200 .7 1.5 47* 1.8 1.6 112
GRAVE SPRINGS 8550 .0 .4 0* 2.3 1.2 192
KIRWIN 9550 1.3 1.0 130* 1.5 1.0 150
MARQUETTE 8760 .2 1.1 18* 2.0 1.3 154
MIDDLE POWDER 7760 .0 .7 0* 2.5 1.5 167
OWL CREEK 8975 1.4 .4 350* 1.9 .7 271
POWDER RIVER PASS 9480 .6 .6 100* 1.8 1.1 164
SHELL CREEK 9580 1.9 1.8 106 2.0 1.2 167
SYLVAN LAKE 8420 .1 1.1 9* 2.0 1.5 133
SYLVAN ROAD 7120 .2 .2 100* 1.3 1.2 108
TIMBER CREEK 7950 .0 .3 0* 1.6 .9 178
YOUNTS PEAK 8350 1.3 .7 186* 2.2 1.0 220
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Basin wide percent of average 85* 157
SHOSHONE RIVER
BLACKWATER 9780 1.0 1.8 56* 1.5 1.5 100
EVENING STAR 9200 .7 1.5 47* 1.8 1.6 112
KIRWIN 9550 1.3 1.0 130* 1.5 1.0 150
MARQUETTE 8760 .2 1.1 18* 2.0 1.3 154
SYLVAN LAKE 8420 .1 1.1 9* 2.0 1.5 133
SYLVAN ROAD 7120 .2 .2 100* 1.3 1.2 108
YOUNTS PEAK 8350 1.3 .7 186* 2.2 1.0 220
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Basin wide percent of average 65* 135
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .2 .3 67* 1.9 1.0 190
BIG GOOSE 7990 .0 .4 0* 2.3 1.2 192
BONE SPRINGS DIV 9350 2.0 1.5 133* 2.3 1.4 164
BURGESS JUNCTION 7880 .2 .8 25* 2.2 1.3 169
CLOUD PEAK RESERVOIR 9860 .0 .6 0* 2.5 1.5 167
DOME LAKE 8880 1.1 .9 122* 2.4 1.4 171
GRAVE SPRINGS 8550 .0 .4 0* 2.3 1.2 192
HANSEN SAWMILL 8360 .3 .3 100* 2.0 1.0 200
MIDDLE POWDER 7760 .0 .7 0* 2.5 1.5 167
POWDER RIVER PASS 9480 .6 .6 100* 1.8 1.1 164
SUCKER CREEK 8880 1.3 .7 186* 2.3 1.4 164
TIE CREEK 6870 .0 .2 0* 2.6 1.4 186
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Basin wide percent of average 77* 176
BELLE FOURCHE
BLIND PARK 6890 .0 .1 0* 1.1 1.5 73
COLE CANYON 5910 .0 .2 0* 2.0 -M *
NORTH RAPID CREEK 6130 .0 .2 0* 1.2 1.4 86
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Basin wide percent of average 0* 79
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .2 0* 2.3 1.4 164
DIVIDE PEAK 8860 .0 .9 0* 3.1 1.5 207
ELK RIVER 8700 .0 .2 0* 2.1 1.3 162
JOE WRIGHT 10120 .0 1.1 0* 2.1 1.9 111
NORTH FRENCH CREEK 10130 .0 1.7 0* 1.8 1.9 95
OLD BATTLE 9920 -M 1.5 * -M 2.0 *
SAGE CREEK BASIN 7850 .1 .4 25* 1.6 .9 178
SOUTH BRUSH CREEK 8440 .0 .3 0* 1.9 1.5 127
TOWER 10500 .3 1.5 20* 3.5 2.2 159
WEBBER SPRINGS 9250 .6 .8 75* 3.8 1.8 211
WILLOW CREEK PASS 9540 1.0 .5 200* 1.6 1.2 133
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Basin wide percent of average 26* 153
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .1 1.1 9* .8 1.4 57
CASPER MTN. 7850 .2 .8 25* 2.3 1.4 164
DEADMAN HILL 10220 .9 1.1 82* 2.0 1.4 143
DEER PARK 9700 .2 1.1 18* 1.4 1.4 100
LAPRELE CREEK 8375 .0 .4 0* 1.0 1.1 91
RENO HILL 8500 .4 .9 44* 2.2 1.4 157
ROACH 9700 -M .5 * -M 1.3 *
SAND LAKE 10050 1.7 1.7 100* 2.5 1.8 139
SOUTH PASS 9040 .0 .6 0* 1.6 1.2 133
WINDY PEAK 7900 .1 .2 50* 1.4 1.0 140
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Basin wide percent of average 46* 126
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .1 100* 1.7 1.1 155
DIVIDE PEAK 8860 .0 .9 0* 3.1 1.5 207
OLD BATTLE 9920 -M 1.5 * -M 2.0 *
SANDSTONE RS 8150 -M .2 * 1.9 1.3 146
WHISKEY PARK 8950 .4 .7 57* 2.4 1.6 150
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Basin wide percent of average 29* 165
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .5 .6 83* 1.2 1.0 120
BLIND BULL SUM 8900 .1 .6 17* .8 1.3 62
EAST RIM DIVIDE 7930 .1 .1 100* .5 .8 62
ELKHART PARK G.S. 9400 .1 .3 33* 1.0 1.1 91
GROS VENTRE SUMMIT 8750 .7 .7 100* 1.2 1.0 120
KENDALL R.S. 7740 .0 .1 0* .8 .9 89
LOOMIS PARK 8240 .0 .3 0* .4 1.0 40
NEW FORK LAKE 8340 .0 .1 0* .6 .9 67
SNIDER BASIN 8060 .0 .2 0* .4 .9 44
SPRING CREEK DIVIDE 9000 .0 .5 0* .5 1.5 33
TRIPLE PEAK 8500 .0 .4 0* .8 1.3 62
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Basin wide percent of average 38* 70
LOWER GREEN RIVER
HAMS FORK 7840 .0 .1 0* .7 .8 87
HEWINTA 9500 .0 .5 0* .8 1.4 57
HICKERSON PARK 9100 .0 .1 0* .8 1.0 80
HOLE-IN-ROCK 9150 .0 .1 0* .8 .9 89
INDIAN CREEK 9425 .2 .6 33* 1.0 1.5 67
KELLEY R.S. 8180 .0 .3 0* .8 1.2 67
STEEL CREEK PARK 10100 .0 1.0 0* 1.0 1.3 77
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Basin wide percent of average 7* 73
UPPER BEAR RIVER
BUG LAKE 7950 .0 .6 0* .7 1.3 54
HAYDEN FORK 9100 .0 .5 0* .5 1.4 36
KELLEY R.S. 8180 .0 .3 0* .8 1.2 67
LILY LAKE 9050 .0 .5 0* .5 1.4 36
MONTE CRISTO 8960 .0 .9 0* .9 1.6 56
SALT RIVER SUMMIT 7600 .0 .1 0* .9 1.1 82
TRIAL LAKE 9960 .0 1.0 0* .4 1.6 25
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Basin wide percent of average 0* 49
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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.