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 , 2007
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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 1.1 .4 275* 5.0 1.6 312
COTTONWOOD CREEK 7600 2.0 .6 333* 5.0 2.3 217
GRANITE CREEK 6770 1.3 .4 325* 4.0 1.3 308
GRASSY LAKE 7265 1.4 .9 156* 5.8 2.6 223
GROS VENTRE SUMMIT 8750 2.0 1.0 200* 3.9 1.4 279
LEWIS LAKE DIVIDE 7850 1.3 .7 186* 5.5 2.4 229
PHILLIPS BENCH 8200 1.6 .9 178* 4.9 1.9 258
SALT RIVER SUMMIT 7600 .4 .2 200* 2.5 1.5 167
SNAKE RIVER STATION 6920 .4 .3 133* 4.6 1.7 271
SPRING CREEK DIVIDE 9000 2.0 1.0 200* 3.3 2.0 165
THUMB DIVIDE 7980 1.1 .5 220* 4.2 1.6 262
TOGWOTEE PASS 9580 4.7 1.9 247* 5.6 2.2 255
TWO OCEAN PLATEAU 9240 5.8 2.3 252* 6.1 2.4 254
WILLOW CREEK 8450 2.9 1.2 242* 6.4 2.8 229
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Basin wide percent of average 228* 241
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.5 2.0 225* 4.4 1.6 275
BLACK BEAR 8170 3.7 1.9 195* 5.9 2.7 219
CANYON 8090 1.2 .5 240* 3.9 1.4 279
FISHER CREEK 9100 5.9 2.0 295* 6.8 2.5 272
MADISON PLATEAU 7750 1.6 1.1 145* 4.7 1.9 247
NORTHEAST ENTRANCE 7350 .0 .2 0* 3.2 1.2 267
PARKER PEAK 9400 4.3 1.9 226* 5.3 1.8 294
SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.0 280
THUMB DIVIDE 7980 1.1 .5 220* 4.2 1.6 262
TWO OCEAN PLATEAU 9240 5.8 2.3 252* 6.1 2.4 254
WHISKEY CREEK 6800 .9 .5 180* 4.4 1.7 259
WHITE MILL 8700 4.2 1.4 300* 5.0 2.1 238
WOLVERINE 7650 .0 .3 0* 3.3 1.4 236
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Basin wide percent of average 219* 258
WIND RIVER
BURROUGHS CREEK 8750 2.0 .7 286* 3.8 1.3 292
COLD SPRINGS 9630 .0 .7 0* 2.4 1.5 160
DEER PARK 9700 1.7 1.8 94* 3.1 1.9 163
HOBBS PARK 10100 1.5 1.5 100* 3.1 1.6 194
LITTLE WARM 9370 1.2 .8 150* 3.1 1.3 238
SOUTH PASS 9040 .5 1.0 50* 2.4 1.6 150
ST. LAWRENCE ALT 8620 .0 .5 0* 1.4 1.3 108
TOGWOTEE PASS 9580 4.7 1.9 247* 5.6 2.2 255
TOWNSEND CREEK 8700 .4 .7 57* 2.6 1.6 162
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Basin wide percent of average 125* 192
BIGHORN BASIN
BALD MTN. 9380 3.0 2.2 136* 3.7 1.9 195
BEAR TRAP MEADOW 8200 .9 .4 225* 1.9 1.3 146
BLACKWATER 9780 5.2 2.4 217* 4.9 2.1 233
BONE SPRINGS DIV 9350 2.2 2.0 110 3.9 1.9 205
EVENING STAR 9200 4.3 2.0 215* 6.4 2.2 291
GRAVE SPRINGS 8550 1.3 .7 186* 2.5 1.6 156
KIRWIN 9550 3.5 1.4 250 4.7 1.4 336
MARQUETTE 8760 1.1 1.5 73 3.0 1.8 167
MIDDLE POWDER 7760 2.3 1.0 230* 2.4 2.0 120
OWL CREEK 8975 .8 .6 133 2.4 .9 267
POWDER RIVER PASS 9480 1.2 .9 133* 3.1 1.5 207
SHELL CREEK 9580 3.9 2.2 177 4.6 1.6 287
SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.0 280
SYLVAN ROAD 7120 .5 .3 167* 5.0 1.6 312
TIMBER CREEK 7950 .3 .6 50 3.1 1.3 238
YOUNTS PEAK 8350 2.0 1.0 200* 5.3 1.4 379
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Basin wide percent of average 167* 236
SHOSHONE RIVER
BLACKWATER 9780 5.2 2.4 217* 4.9 2.1 233
EVENING STAR 9200 4.3 2.0 215* 6.4 2.2 291
KIRWIN 9550 3.5 1.4 250 4.7 1.4 336
MARQUETTE 8760 1.1 1.5 73 3.0 1.8 167
SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.0 280
SYLVAN ROAD 7120 .5 .3 167* 5.0 1.6 312
YOUNTS PEAK 8350 2.0 1.0 200* 5.3 1.4 379
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Basin wide percent of average 185* 279
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .4 225* 1.9 1.3 146
BIG GOOSE 7990 1.9 .6 317* 4.1 1.6 256
BONE SPRINGS DIV 9350 2.2 2.0 110 3.9 1.9 205
BURGESS JUNCTION 7880 1.6 1.1 145* 3.3 1.7 194
CLOUD PEAK RESERVOIR 9860 3.1 1.0 310* 5.2 2.0 260
DOME LAKE 8880 2.1 1.3 162* 4.5 1.9 237
GRAVE SPRINGS 8550 1.3 .7 186* 2.5 1.6 156
HANSEN SAWMILL 8360 1.2 .6 200* 2.9 1.4 207
MIDDLE POWDER 7760 2.3 1.0 230* 2.4 2.0 120
POWDER RIVER PASS 9480 1.2 .9 133* 3.1 1.5 207
SUCKER CREEK 8880 2.0 1.0 200* 3.9 1.9 205
TIE CREEK 6870 .0 .5 0* 2.9 1.9 153
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Basin wide percent of average 178* 196
BELLE FOURCHE
BLIND PARK 6890 .0 .3 0* 1.5 2.0 75
COLE CANYON 5910 .0 .5 0* 1.1 -M *
NORTH RAPID CREEK 6130 .0 .3 0* 1.2 1.9 63
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Basin wide percent of average 0* 69
UPPER N. PLATTE RIVER
COLUMBINE 9160 .4 .5 80* 3.5 1.9 184
DIVIDE PEAK 8860 1.4 1.3 108* 2.6 2.1 124
ELK RIVER 8700 -M .4 * 3.2 1.7 188
JOE WRIGHT 10120 2.2 1.8 122* 4.8 2.6 185
NORTH FRENCH CREEK 10130 2.4 2.4 100* 3.8 2.6 146
OLD BATTLE 9920 2.6 2.2 118* 4.2 2.7 156
SAGE CREEK BASIN 7850 .5 .7 71* 2.1 1.2 175
SOUTH BRUSH CREEK 8440 1.1 .5 220* 3.1 2.0 155
TOWER 10500 2.8 2.4 117* 4.8 3.0 160
WEBBER SPRINGS 9250 1.4 1.3 108* 3.5 2.4 146
WILLOW CREEK PASS 9540 2.1 .8 262* 3.0 1.6 188
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Basin wide percent of average 122* 162
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.2 1.6 75* 2.6 1.9 137
CASPER MTN. 7850 1.6 1.2 133* 3.3 1.9 174
DEADMAN HILL 10220 2.3 1.6 144* 3.3 1.9 174
DEER PARK 9700 1.7 1.8 94* 3.1 1.9 163
LAPRELE CREEK 8375 .7 .7 100* 2.2 1.5 147
RENO HILL 8500 2.1 1.3 162* 3.6 1.9 189
ROACH 9700 1.9 .8 237* 3.2 1.8 178
SAND LAKE 10050 3.6 2.4 150* 4.2 2.4 175
SOUTH PASS 9040 .5 1.0 50* 2.4 1.6 150
WINDY PEAK 7900 .9 .4 225* 1.7 1.3 131
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Basin wide percent of average 129* 164
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .3 .3 100* 2.0 1.5 133
DIVIDE PEAK 8860 1.4 1.3 108* 2.6 2.1 124
OLD BATTLE 9920 2.6 2.2 118* 4.2 2.7 156
SANDSTONE RS 8150 .1 .4 25* 2.2 1.8 122
WHISKEY PARK 8950 1.1 1.2 92* 3.7 2.2 168
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Basin wide percent of average 102* 143
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .9 .9 100* 2.0 1.4 143
BLIND BULL SUM 8900 1.8 1.1 164* 3.1 1.7 182
EAST RIM DIVIDE 7930 .3 .4 75* 2.1 1.0 210
ELKHART PARK G.S. 9400 1.1 .6 183* 2.6 1.5 173
GROS VENTRE SUMMIT 8750 2.0 1.0 200* 3.9 1.4 279
KENDALL R.S. 7740 .6 .4 150* 2.3 1.2 192
LOOMIS PARK 8240 1.0 .6 167* 2.4 1.4 171
NEW FORK LAKE 8340 .7 .3 233* 2.2 1.2 183
SNIDER BASIN 8060 .3 .5 60* 1.7 1.3 131
SPRING CREEK DIVIDE 9000 2.0 1.0 200* 3.3 2.0 165
TRIPLE PEAK 8500 1.4 .8 175* 4.4 1.7 259
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Basin wide percent of average 159* 190
LOWER GREEN RIVER
HAMS FORK 7840 .0 .3 0* 1.5 1.1 136
HEWINTA 9500 -M .7 * 4.3 1.9 226
HICKERSON PARK 9100 .1 .3 33* 2.8 1.3 215
HOLE-IN-ROCK 9150 .0 .3 0* 3.3 1.3 254
INDIAN CREEK 9425 1.9 1.0 190* 2.8 2.0 140
KELLEY R.S. 8180 .7 .6 117* 2.8 1.6 175
STEEL CREEK PARK 10100 3.7 1.3 285* 4.6 1.8 256
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Basin wide percent of average 168* 201
UPPER BEAR RIVER
BUG LAKE 7950 .3 .9 33* 1.3 1.8 72
HAYDEN FORK 9100 .2 .7 29* 3.4 1.9 179
KELLEY R.S. 8180 .7 .6 117* 2.8 1.6 175
LILY LAKE 9050 .0 .7 0* 3.4 1.9 179
MONTE CRISTO 8960 .9 1.2 75* 3.5 2.2 159
SALT RIVER SUMMIT 7600 .4 .2 200* 2.5 1.5 167
TRIAL LAKE 9960 1.4 1.4 100* 2.8 2.2 127
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Basin wide percent of average 68* 150
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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.