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 25 , 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 .5 220* 5.0 1.6 312
COTTONWOOD CREEK 7600 2.0 .6 333* 5.0 2.4 208
GRANITE CREEK 6770 1.3 .4 325* 4.0 1.4 286
GRASSY LAKE 7265 1.3 1.0 130* 5.8 2.7 215
GROS VENTRE SUMMIT 8750 2.0 1.1 182* 3.9 1.5 260
LEWIS LAKE DIVIDE 7850 1.3 .8 162* 5.6 2.6 215
PHILLIPS BENCH 8200 1.6 1.0 160* 5.0 1.9 263
SALT RIVER SUMMIT 7600 .2 .2 100* 2.5 1.5 167
SNAKE RIVER STATION 6920 .3 .4 75* 4.6 1.8 256
SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.1 162
THUMB DIVIDE 7980 1.1 .6 183* 4.3 1.6 269
TOGWOTEE PASS 9580 4.7 2.0 235* 5.6 2.2 255
TWO OCEAN PLATEAU 9240 5.9 2.4 246* 6.1 2.5 244
WILLOW CREEK 8450 2.7 1.3 208* 6.4 2.9 221
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Basin wide percent of average 204* 234
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.6 2.1 219* 4.5 1.7 265
BLACK BEAR 8170 3.6 2.0 180* 6.0 2.8 214
CANYON 8090 1.2 .5 240* 3.9 1.5 260
FISHER CREEK 9100 5.8 2.1 276* 6.8 2.6 262
MADISON PLATEAU 7750 1.7 1.2 142* 4.7 2.0 235
NORTHEAST ENTRANCE 7350 .0 .2 0* 3.2 1.2 267
PARKER PEAK 9400 4.3 2.0 215* 5.3 1.9 279
SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.1 267
THUMB DIVIDE 7980 1.1 .6 183* 4.3 1.6 269
TWO OCEAN PLATEAU 9240 5.9 2.4 246* 6.1 2.5 244
WHISKEY CREEK 6800 .9 .5 180* 4.4 1.8 244
WHITE MILL 8700 4.2 1.5 280* 5.2 2.2 236
WOLVERINE 7650 .0 .3 0* 3.4 1.5 227
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Basin wide percent of average 209* 250
WIND RIVER
BURROUGHS CREEK 8750 2.0 .7 286* 3.9 1.3 300
COLD SPRINGS 9630 .0 .7 0* 2.3 1.5 153
DEER PARK 9700 1.7 1.9 89 3.2 2.0 160
HOBBS PARK 10100 1.5 1.6 94* 3.2 1.7 188
LITTLE WARM 9370 1.2 .8 150* 3.1 1.4 221
SOUTH PASS 9040 .4 1.1 36* 2.4 1.7 141
ST. LAWRENCE ALT 8620 .0 .6 0* 1.4 1.4 100
TOGWOTEE PASS 9580 4.7 2.0 235* 5.6 2.2 255
TOWNSEND CREEK 8700 .4 .8 50* 2.6 1.7 153
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Basin wide percent of average 117* 186
BIGHORN BASIN
BALD MTN. 9380 3.0 2.3 130* 3.8 1.9 200
BEAR TRAP MEADOW 8200 .8 .4 200* 1.9 1.4 136
BLACKWATER 9780 5.1 2.5 204* 4.9 2.2 223
BONE SPRINGS DIV 9350 2.2 2.1 105 3.9 2.0 195
EVENING STAR 9200 4.2 2.1 200* 6.4 2.2 291
GRAVE SPRINGS 8550 1.3 .8 162* 2.5 1.7 147
KIRWIN 9550 3.5 1.4 250 4.8 1.5 320
MARQUETTE 8760 .0 1.5 0 3.1 1.9 163
MIDDLE POWDER 7760 2.3 1.0 230* 2.4 2.1 114
OWL CREEK 8975 .8 .7 114 2.4 .9 267
POWDER RIVER PASS 9480 1.2 1.0 120* 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 2.1 267
SYLVAN ROAD 7120 .5 .3 167* 5.0 1.7 294
TIMBER CREEK 7950 .0 .7 0 3.0 1.3 231
YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353
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Basin wide percent of average 152* 228
SHOSHONE RIVER
BLACKWATER 9780 5.1 2.5 204* 4.9 2.2 223
EVENING STAR 9200 4.2 2.1 200* 6.4 2.2 291
KIRWIN 9550 3.5 1.4 250 4.8 1.5 320
MARQUETTE 8760 .0 1.5 0 3.1 1.9 163
SYLVAN LAKE 8420 2.1 1.5 140* 5.6 2.1 267
SYLVAN ROAD 7120 .5 .3 167* 5.0 1.7 294
YOUNTS PEAK 8350 2.0 1.1 182* 5.3 1.5 353
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Basin wide percent of average 167* 268
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .8 .4 200* 1.9 1.4 136
BIG GOOSE 7990 1.9 .7 271* 4.2 1.7 247
BONE SPRINGS DIV 9350 2.2 2.1 105 3.9 2.0 195
BURGESS JUNCTION 7880 1.6 1.2 133* 3.2 1.8 178
CLOUD PEAK RESERVOIR 9860 2.9 1.1 264* 5.2 2.1 248
DOME LAKE 8880 2.1 1.4 150 4.5 2.0 225
GRAVE SPRINGS 8550 1.3 .8 162* 2.5 1.7 147
HANSEN SAWMILL 8360 1.0 .6 167* 3.1 1.5 207
MIDDLE POWDER 7760 2.3 1.0 230* 2.4 2.1 114
POWDER RIVER PASS 9480 1.2 1.0 120* 3.1 1.5 207
SUCKER CREEK 8880 1.9 1.0 190* 4.0 1.9 211
TIE CREEK 6870 .0 .5 0* 2.9 2.0 145
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Basin wide percent of average 163* 188
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* 1.5 2.1 71
COLE CANYON 5910 .0 .5 0* 1.4 -M *
NORTH RAPID CREEK 6130 .0 .3 0* 1.2 2.0 60
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Basin wide percent of average 0* 66
UPPER N. PLATTE RIVER
COLUMBINE 9160 .2 .5 40* 3.6 1.9 189
DIVIDE PEAK 8860 1.4 1.3 108* 2.7 2.2 123
ELK RIVER 8700 -M .5 * 3.2 1.8 178
JOE WRIGHT 10120 2.3 1.9 121* 4.8 2.7 178
NORTH FRENCH CREEK 10130 2.3 2.5 92* 3.8 2.7 141
OLD BATTLE 9920 2.6 2.3 113* 4.3 2.9 148
SAGE CREEK BASIN 7850 .2 .7 29* 2.1 1.2 175
SOUTH BRUSH CREEK 8440 1.1 .6 183* 3.1 2.1 148
TOWER 10500 2.8 2.6 108* 4.8 3.2 150
WEBBER SPRINGS 9250 1.4 1.4 100* 3.6 2.5 144
WILLOW CREEK PASS 9540 2.1 .8 262* 3.0 1.6 188
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Basin wide percent of average 112* 157
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.0 1.7 59* 2.7 2.0 135
CASPER MTN. 7850 1.6 1.3 123* 3.3 2.0 165
DEADMAN HILL 10220 2.4 1.7 141* 3.3 2.0 165
DEER PARK 9700 1.7 1.9 89 3.2 2.0 160
LAPRELE CREEK 8375 .7 .8 87* 2.2 1.5 147
RENO HILL 8500 2.1 1.3 162* 3.7 2.0 185
ROACH 9700 1.9 .9 211* 3.2 1.9 168
SAND LAKE 10050 3.7 2.5 148* 4.3 2.5 172
SOUTH PASS 9040 .4 1.1 36* 2.4 1.7 141
WINDY PEAK 7900 1.1 .4 275* 1.9 1.4 136
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Basin wide percent of average 122* 159
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .4 50* 2.1 1.5 140
DIVIDE PEAK 8860 1.4 1.3 108* 2.7 2.2 123
OLD BATTLE 9920 2.6 2.3 113* 4.3 2.9 148
SANDSTONE RS 8150 .0 .4 0* 2.2 1.9 116
WHISKEY PARK 8950 1.1 1.3 85* 3.7 2.3 161
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Basin wide percent of average 93* 139
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .9 .9 100* 2.0 1.5 133
BLIND BULL SUM 8900 1.8 1.2 150* 3.1 1.8 172
EAST RIM DIVIDE 7930 .0 .4 0* 2.1 1.1 191
ELKHART PARK G.S. 9400 1.2 .6 200* 2.6 1.5 173
GROS VENTRE SUMMIT 8750 2.0 1.1 182* 3.9 1.5 260
KENDALL R.S. 7740 .4 .4 100* 2.3 1.2 192
LOOMIS PARK 8240 1.1 .7 157* 2.4 1.5 160
NEW FORK LAKE 8340 .7 .4 175* 2.3 1.2 192
SNIDER BASIN 8060 .3 .5 60* 1.7 1.3 131
SPRING CREEK DIVIDE 9000 1.9 1.1 173* 3.4 2.1 162
TRIPLE PEAK 8500 1.4 .8 175* 4.4 1.8 244
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Basin wide percent of average 144* 183
LOWER GREEN RIVER
HAMS FORK 7840 .0 .3 0* 1.6 1.2 133
HEWINTA 9500 -M .7 * 4.3 1.9 226
HICKERSON PARK 9100 .3 .3 100* 2.7 1.4 193
HOLE-IN-ROCK 9150 .0 .3 0* 3.4 1.3 262
INDIAN CREEK 9425 1.8 1.1 164* 2.8 2.1 133
KELLEY R.S. 8180 .7 .7 100* 2.8 1.7 165
STEEL CREEK PARK 10100 3.9 1.3 300* 4.6 1.9 242
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Basin wide percent of average 167* 193
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.0 30* 1.6 1.9 84
HAYDEN FORK 9100 .2 .7 29* 3.4 1.9 179
KELLEY R.S. 8180 .7 .7 100* 2.8 1.7 165
LILY LAKE 9050 .1 .8 12* 3.5 1.9 184
MONTE CRISTO 8960 .6 1.3 46* 3.5 2.2 159
SALT RIVER SUMMIT 7600 .2 .2 100* 2.5 1.5 167
TRIAL LAKE 9960 1.3 1.5 87* 2.7 2.2 123
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Basin wide percent of average 55* 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.