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 12 , 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 .0 .1 0* 1.2 .7 171
COTTONWOOD CREEK 7600 .0 .1 0* 1.3 1.1 118
GRANITE CREEK 6770 .1 .1 100* 1.9 .6 317
GRASSY LAKE 7265 .1 .2 50* 2.7 1.2 225
GROS VENTRE SUMMIT 8750 .6 .5 120* 1.7 .7 243
LEWIS LAKE DIVIDE 7850 -M .1 * -M 1.2 *
PHILLIPS BENCH 8200 .0 .2 0* 1.7 .9 189
SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 .7 171
SNAKE RIVER STATION 6920 .0 .0 100* 1.9 .8 237
SPRING CREEK DIVIDE 9000 .0 .2 0* 1.1 1.0 110
THUMB DIVIDE 7980 .0 .1 0* 1.3 .7 186
TOGWOTEE PASS 9580 .7 .8 87* 1.4 1.0 140
TWO OCEAN PLATEAU 9240 .1 .9 11* 1.4 1.1 127
WILLOW CREEK 8450 .1 .3 33* 1.6 1.3 123
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Basin wide percent of average 49* 173
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 .4 1.1 36* 1.2 .8 150
BLACK BEAR 8170 .0 .7 0* 2.7 1.3 208
CANYON 8090 .2 .2 100* 1.8 .7 257
FISHER CREEK 9100 .5 .8 62* 2.1 1.2 175
MADISON PLATEAU 7750 .0 .4 0* 1.8 .9 200
NORTHEAST ENTRANCE 7350 .0 .1 0* 2.0 .6 333
PARKER PEAK 9400 .7 1.0 70* 1.6 .9 178
SYLVAN LAKE 8420 .0 .8 0* 2.6 1.0 260
THUMB DIVIDE 7980 .0 .1 0* 1.3 .7 186
TWO OCEAN PLATEAU 9240 .1 .9 11* 1.4 1.1 127
WHISKEY CREEK 6800 .0 .1 0* 1.2 .8 150
WHITE MILL 8700 .4 .6 67* 2.0 1.0 200
WOLVERINE 7650 .1 .1 100* 1.1 .7 157
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Basin wide percent of average 35* 195
WIND RIVER
BURROUGHS CREEK 8750 .9 .3 300* 1.5 .6 250
COLD SPRINGS 9630 .2 .2 100* .7 .7 100
DEER PARK 9700 .2 .7 29* 1.2 .9 133
HOBBS PARK 10100 .2 .6 33* .4 .8 50
LITTLE WARM 9370 .0 .4 0* .6 .6 100
SOUTH PASS 9040 .0 .3 0* 1.3 .8 162
ST. LAWRENCE ALT 8620 .1 .1 100* .6 .6 100
TOGWOTEE PASS 9580 .7 .8 87* 1.4 1.0 140
TOWNSEND CREEK 8700 .0 .2 0* 1.2 .8 150
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Basin wide percent of average 64* 131
BIGHORN BASIN
BALD MTN. 9380 2.5 1.3 192* 1.5 .9 167
BEAR TRAP MEADOW 8200 .2 .2 100* .5 .6 83
BLACKWATER 9780 .6 1.3 46* 1.2 1.0 120
BONE SPRINGS DIV 9350 2.3 1.1 209* 1.2 .9 133
EVENING STAR 9200 .6 1.0 60* 1.6 1.0 160
GRAVE SPRINGS 8550 .2 .2 100* .4 .8 50
KIRWIN 9550 .5 .7 71* 1.2 .7 171
MARQUETTE 8760 .0 .8 0* .8 .9 89
MIDDLE POWDER 7760 .5 .5 100* .7 1.0 70
OWL CREEK 8975 .9 .3 300* 1.3 .4 325
POWDER RIVER PASS 9480 .4 .5 80* .7 .7 100
SHELL CREEK 9580 2.9 1.4 207* 1.1 .7 157
SYLVAN LAKE 8420 .0 .8 0* 2.6 1.0 260
SYLVAN ROAD 7120 .2 .1 200* 1.7 .8 212
TIMBER CREEK 7950 .0 .1 0* 1.1 .6 183
YOUNTS PEAK 8350 .3 .5 60* 1.1 .7 157
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Basin wide percent of average 112* 147
SHOSHONE RIVER
BLACKWATER 9780 .6 1.3 46* 1.2 1.0 120
EVENING STAR 9200 .6 1.0 60* 1.6 1.0 160
KIRWIN 9550 .5 .7 71* 1.2 .7 171
MARQUETTE 8760 .0 .8 0* .8 .9 89
SYLVAN LAKE 8420 .0 .8 0* 2.6 1.0 260
SYLVAN ROAD 7120 .2 .1 200* 1.7 .8 212
YOUNTS PEAK 8350 .3 .5 60* 1.1 .7 157
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Basin wide percent of average 42* 167
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .2 .2 100* .5 .6 83
BIG GOOSE 7990 .1 .2 50* .3 .8 37
BONE SPRINGS DIV 9350 2.3 1.1 209* 1.2 .9 133
BURGESS JUNCTION 7880 .3 .5 60* 1.1 .8 138
CLOUD PEAK RESERVOIR 9860 .4 .3 133* .7 1.0 70
DOME LAKE 8880 .2 .6 33* .8 .9 89
GRAVE SPRINGS 8550 .2 .2 100* .4 .8 50
HANSEN SAWMILL 8360 .3 .2 150* .3 .7 43
MIDDLE POWDER 7760 .5 .5 100* .7 1.0 70
POWDER RIVER PASS 9480 .4 .5 80* .7 .7 100
SUCKER CREEK 8880 .6 .4 150* 1.1 .9 122
TIE CREEK 6870 .3 .0 * 1.5 .9 167
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Basin wide percent of average 117* 93
BELLE FOURCHE
BLIND PARK 6890 .0 .0 100* .2 1.0 20
COLE CANYON 5910 .0 .0 100* .6 -M *
NORTH RAPID CREEK 6130 -M .1 * .1 .9 11
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Basin wide percent of average * 16
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .0 100* 1.5 .9 167
DIVIDE PEAK 8860 .1 .6 17* 1.6 1.0 160
ELK RIVER 8700 .1 .1 100* 1.2 .8 150
JOE WRIGHT 10120 .0 .6 0* .6 1.2 50
NORTH FRENCH CREEK 10130 .3 1.1 27* 1.4 1.2 117
OLD BATTLE 9920 .6 .9 67* 1.9 1.3 146
SAGE CREEK BASIN 7850 .2 .2 100* 1.5 .6 250
SOUTH BRUSH CREEK 8440 .0 .2 0* .6 1.0 60
TOWER 10500 .5 .8 62* 2.0 1.5 133
WEBBER SPRINGS 9250 .1 .4 25* 1.8 1.1 164
WILLOW CREEK PASS 9540 .1 .2 50* .0 .7 0
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Basin wide percent of average 39* 125
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 .5 .8 62* .9 .9 100
CASPER MTN. 7850 .3 .5 60* .4 .9 44
DEADMAN HILL 10220 -M .8 * .3 .9 33
DEER PARK 9700 .2 .7 29* 1.2 .9 133
LAPRELE CREEK 8375 .2 .2 100* .2 .7 29
RENO HILL 8500 .2 .5 40* .6 .9 67
ROACH 9700 .1 .2 50* .7 .9 78
SAND LAKE 10050 .3 1.1 27* 1.2 1.1 109
SOUTH PASS 9040 .0 .3 0* 1.3 .8 162
WINDY PEAK 7900 .1 .1 100* .3 .6 50
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Basin wide percent of average 43* 83
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .0 * 1.1 .7 157
DIVIDE PEAK 8860 .1 .6 17* 1.6 1.0 160
OLD BATTLE 9920 .6 .9 67* 1.9 1.3 146
SANDSTONE RS 8150 .0 .1 0* 1.2 .9 133
WHISKEY PARK 8950 .0 .4 0* 1.3 1.1 118
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Basin wide percent of average 35* 142
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .1 .3 33* 1.0 .7 143
BLIND BULL SUM 8900 .1 .3 33* 1.3 .8 162
EAST RIM DIVIDE 7930 .0 .0 100* 1.3 .5 260
ELKHART PARK G.S. 9400 .0 .2 0* 1.6 .7 229
GROS VENTRE SUMMIT 8750 .6 .5 120* 1.7 .7 243
KENDALL R.S. 7740 .0 .0 100* 1.5 .6 250
LOOMIS PARK 8240 .0 .2 0* 1.6 .7 229
NEW FORK LAKE 8340 .0 .0 100* 1.1 .6 183
SNIDER BASIN 8060 .0 .1 0* .8 .6 133
SPRING CREEK DIVIDE 9000 .0 .2 0* 1.1 1.0 110
TRIPLE PEAK 8500 .1 .2 50* 1.1 .8 138
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Basin wide percent of average 45* 183
LOWER GREEN RIVER
HAMS FORK 7840 .0 .0 100* .9 .5 180
HEWINTA 9500 -M .3 * 1.5 .9 167
HICKERSON PARK 9100 .1 .0 * .8 .6 133
HOLE-IN-ROCK 9150 .2 .0 * 1.3 .6 217
INDIAN CREEK 9425 .0 .3 0* 1.0 1.0 100
KELLEY R.S. 8180 .0 .2 0* .9 .8 112
STEEL CREEK PARK 10100 .7 .7 100* 1.5 .9 167
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Basin wide percent of average 58* 149
UPPER BEAR RIVER
BUG LAKE 7950 .2 .4 50* 1.1 .9 122
HAYDEN FORK 9100 .0 .3 0* 2.5 .9 278
KELLEY R.S. 8180 .0 .2 0* .9 .8 112
LILY LAKE 9050 .0 .3 0* 1.5 .9 167
MONTE CRISTO 8960 .0 .6 0* 2.0 1.0 200
SALT RIVER SUMMIT 7600 .0 .0 100* 1.2 .7 171
TRIAL LAKE 9960 .0 .7 0* 2.5 1.0 250
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Basin wide percent of average 8* 189
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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.