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 SATURDAY: OCTOBER 19 , 2013
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BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Median Median Current Average Avg
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WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .0 * 1.4 1.1 127
BLACK BEAR 8170 1.7 1.4 121* 2.0 2.1 95
BLIND BULL SUM 8650 .6 .4 150* 1.4 1.2 117
COTTONWOOD CREEK 7670 .4 .0 * 1.6 1.5 107
EAST RIM DIVIDE 7930 .1 .0 * 1.2 .8 150
GRAND TARGHEE 9260 2.3 2.7 85* 2.7 3.4 79
GRANITE CREEK 6770 .1 .0 * 1.0 1.0 100
GRASSY LAKE 7265 .2 .0 * 1.5 1.9 79
GROS VENTRE SUMMIT 8750 2.1 .8 262* 2.0 1.0 200
GUNSIGHT PASS 9820 2.1 .4 525* 2.4 1.3 185
LEWIS LAKE DIVIDE 7850 .0 .0 * 1.3 1.7 76
PHILLIPS BENCH 8200 .4 .0 * 1.4 1.3 108
SALT RIVER SUMMIT 7760 .0 .0 * 1.3 1.0 130
SNAKE RIVER STATION 6920 .0 .0 * 1.0 1.5 67
SPRING CREEK DIVIDE 9000 .5 .4 125* 1.1 1.2 92
THUMB DIVIDE 7980 .0 .0 * 1.2 1.3 92
TOGWOTEE PASS 9580 3.4 1.6 212* 2.3 1.5 153
TWO OCEAN PLATEAU 9240 3.2 1.8 178* 2.2 1.7 129
WILLOW CREEK 8380 .4 .0 * 2.5 2.0 125
YOUNTS PEAK 8350 -M .5 * -M 1.3 *
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Basin Index (%) 184* 111
MADISON-GALLATIN
BLACK BEAR 8170 1.7 1.4 121* 2.0 2.1 95
CANYON 7870 .5 .2 250* 1.7 1.2 142
MADISON PLATEAU 7750 .5 .5 100* 1.7 1.5 113
WEST YELLOWSTONE 6700 .1 .0 * 1.2 1.1 109
WHISKEY CREEK 6800 .3 .0 * 1.3 1.3 100
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Basin Index (%) 148* 110
YELLOWSTONE
BEARTOOTH LAKE 9360 2.5 1.5 167* 1.4 1.3 108
BURNT MTN 5880 2.0 .0 * 4.9 2.5 196
CANYON 7870 .5 .2 250* 1.7 1.2 142
COLE CREEK 7850 4.4 1.5 293* 3.7 2.2 168
EVENING STAR 9200 3.0 1.1 273* 2.4 1.9 126
FISHER CREEK 9100 3.1 1.4 221* 1.9 2.0 95
NORTHEAST ENTRANCE 7350 .1 .0 * .8 1.1 73
PARKER PEAK 9400 3.0 1.4 214* 2.1 1.7 124
SYLVAN LAKE 8420 1.1 .7 157* 2.0 1.9 105
THUMB DIVIDE 7980 .0 .0 * 1.2 1.3 92
TWO OCEAN PLATEAU 9240 3.2 1.8 178* 2.2 1.7 129
WHITE MILL 8700 2.3 1.1 209* 1.6 1.7 94
WOLVERINE 7650 .0 .0 * 1.2 1.2 100
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Basin Index (%) 236* 125
WIND RIVER
BURROUGHS CREEK 8750 -M .3 * -M 1.1 *
CASTLE CREEK 8400 .5 -M * 1.7 -M *
COLD SPRINGS 9630 2.4 .0 * 3.6 1.1 327
DEER PARK 9700 2.2 .8 275* 2.5 1.7 147
HOBBS PARK 10100 3.5 .9 389* 3.5 1.4 250
KIRWIN 9550 3.3 .8 412* 2.5 1.2 208
LITTLE WARM 9370 2.4 .4 600* 3.1 1.2 258
OWL CREEK 8975 1.6 .2 800* 1.9 .8 238
SOUTH PASS 9040 1.6 .1 1600* 2.4 1.2 200
ST. LAWRENCE ALT 8620 1.1 .0 * 3.0 1.1 273
TOGWOTEE PASS 9580 3.4 1.6 212* 2.3 1.5 153
TOWNSEND CREEK 8700 -M .0 * -M 1.4 *
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Basin Index (%) 448* 221
BIGHORN BASIN
BALD MTN. 9380 4.6 2.0 230* 3.2 1.8 178
BEAR TRAP MEADOW 8200 2.1 .2 1050* 3.3 1.1 300
BONE SPRINGS DIV 9350 3.0 1.5 200* 2.6 1.7 153
GRAVE SPRINGS 8550 3.0 .2 1500* 3.7 1.5 247
KIRWIN 9550 3.3 .8 412* 2.5 1.2 208
MARQUETTE 8760 3.7 -M * 4.2 -M *
MIDDLE POWDER 7760 5.1 .4 1275* 4.5 1.6 281
OWL CREEK 8975 1.6 .2 800* 1.9 .8 238
POWDER RIVER PASS 9480 2.7 .5 540* 2.9 1.4 207
SHELL CREEK 9580 3.4 1.9 179 2.5 1.6 156
TIMBER CREEK 7950 2.1 .0 * 3.3 1.4 236
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Basin Index (%) 401* 216
SHOSHONE RIVER
BLACKWATER 9780 4.3 1.5 287* 2.3 1.8 128
EVENING STAR 9200 3.0 1.1 273* 2.4 1.9 126
MARQUETTE 8760 3.7 -M * 4.2 -M *
SYLVAN ROAD 7120 .0 .0 * 2.0 1.4 143
YOUNTS PEAK 8350 -M .5 * -M 1.3 *
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Basin Index (%) 281* 131
POWDER RIVER
BEAR TRAP MEADOW 8200 2.1 .2 1050* 3.3 1.1 300
CLOUD PEAK RESERVOIR 9860 3.3 1.0 330* 4.1 1.8 228
GRAVE SPRINGS 8550 3.0 .2 1500* 3.7 1.5 247
HANSEN SAWMILL 8360 2.1 .0 * 3.4 1.2 283
MIDDLE POWDER 7760 5.1 .4 1275* 4.5 1.6 281
POWDER RIVER PASS 9480 2.7 .5 540* 2.9 1.4 207
SOLDIER PARK 8720 1.8 -M * 3.3 -M *
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Basin Index (%) 796* 255
TONGUE RIVER
BIG GOOSE 7990 2.5 .5 500* 4.0 1.7 235
BONE SPRINGS DIV 9350 3.0 1.5 200* 2.6 1.7 153
BURGESS JUNCTION 7880 2.7 .6 450* 3.7 1.6 231
DOME LAKE 8880 2.6 1.0 260* 3.7 1.8 206
LITTLE GOOSE 8870 3.3 -M * 4.7 -M *
SUCKER CREEK 8880 3.9 .8 488* 4.4 1.8 244
TIE CREEK 6870 1.7 .0 * 4.1 1.9 216
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Basin Index (%) 373* 214
BELLE FOURCHE
COLE CANYON 5910 2.3 .0 * 6.6 1.3 508
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Basin Index (%) * 508
CHEYENNE RIVER BASIN
BLIND PARK 6890 2.7 .0 * 6.7 1.5 447
NORTH RAPID CREEK 6130 3.9 .0 * 7.0 1.3 538
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Basin Index (%) * 489
UPPER N. PLATTE
ARAPAHO RIDGE 10960 2.4 1.3 185* 3.2 1.8 178
BLACKHALL MTN 9820 3.5 -M * 4.8 -M *
COLUMBINE 9160 1.0 .0 * 3.0 1.7 176
DIVIDE PEAK 8880 2.3 .4 575* 4.6 2.0 230
JOE WRIGHT 10120 1.1 .8 138* 4.0 2.1 190
LAPRELE CREEK 8375 .6 .0 * 2.5 1.2 208
MED BOW 10500 3.9 -M * 4.8 -M *
NORTH FRENCH CREEK 10130 -M 1.0 * -M 2.0 *
NEVER SUMMER 10280 2.1 .9 233* 2.8 -M *
OLD BATTLE 10000 3.4 1.3 262* 4.0 2.5 160
RAWAH 9020 1.6 .0 * 3.8 1.3 292
SAGE CREEK BASIN 7850 .5 .0 * 2.8 1.2 233
SAND LAKE 10050 3.9 1.2 325* 4.5 1.9 237
SOUTH BRUSH CREEK 8440 2.0 .0 * -M 1.5 *
TOWER 10500 4.6 1.5 307* 5.1 2.6 196
WEBBER SPRINGS 9250 1.6 .2 800* 3.5 1.9 184
WILLOW CREEK PASS 9540 1.8 .3 600* 2.2 1.1 200
ZIRKEL 9340 -M .0 * 2.8 2.5 112
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Basin Index (%) 366* 193
SWEETWATER
DEER PARK 9700 2.2 .8 275* 2.5 1.7 147
LARSEN CREEK 9000 .0 -M * 1.8 -M *
SOUTH PASS 9040 1.6 .1 1600* 2.4 1.2 200
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Basin Index (%) 422* 169
LOWER N. PLATTE
CASPER MTN. 7900 -M .1 * -M 1.7 *
LAPRELE CREEK 8375 .6 .0 * 2.5 1.2 208
RENO HILL 8400 -M .6 * -M 1.5 *
WINDY PEAK 7900 .4 .0 * 2.4 1.1 218
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Basin Index (%) * 213
LARAMIE RIVER
BROOKLYN LAKE 10240 1.6 .3 533* 2.5 1.4 179
CINNABAR PARK 9574 1.8 .3 600* 3.1 1.6 194
CROW CREEK 8330 .5 .0 * 2.4 1.2 200
DEADMAN HILL 10220 2.3 1.0 230* 3.2 1.5 213
RAWAH 9020 1.6 .0 * 3.8 1.3 292
ROACH 9700 -M .3 * -M 1.5 *
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Basin Index (%) 488* 214
S. PLATTE
BLACK MOUNTAIN 8920 1.3 -M * 2.4 -M *
CROW CREEK 8330 .5 .0 * 2.4 1.2 200
DEADMAN HILL 10220 2.3 1.0 230* 3.2 1.5 213
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Basin Index (%) 280* 207
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.1 .0 * 2.9 1.0 290
DIVIDE PEAK 8880 2.3 .4 575* 4.6 2.0 230
ELK RIVER 8700 .9 .0 * 2.8 1.6 175
LITTLE SNAKE RIVER 8915 1.7 .2 850* 4.4 2.5 176
OLD BATTLE 10000 3.4 1.3 262* 4.0 2.5 160
SAGE CREEK BASIN 7850 .5 .0 * 2.8 1.2 233
SANDSTONE RS 8150 1.3 .0 * 3.1 1.2 258
WHISKEY PARK 8950 3.2 .0 * 4.8 1.7 282
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Basin Index (%) 758* 215
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.2 .6 200* 1.5 1.1 136
BLIND BULL SUM 8650 .6 .4 150* 1.4 1.2 117
EAST RIM DIVIDE 7930 .1 .0 * 1.2 .8 150
ELKHART PARK G.S. 9400 1.2 .4 300* 1.8 1.1 164
GROS VENTRE SUMMIT 8750 2.1 .8 262* 2.0 1.0 200
GUNSIGHT PASS 9820 2.1 .4 525* 2.4 1.3 185
KENDALL R.S. 7740 .0 .0 * 1.2 .8 150
LOOMIS PARK 8240 .4 .0 * 1.3 1.0 130
NEW FORK LAKE 8340 .3 .0 * .7 .8 88
POCKET CREEK 9360 2.3 -M * 2.5 -M *
SNIDER BASIN 8060 .1 .0 * 1.0 .8 125
SPRING CREEK DIVIDE 9000 .5 .4 125* 1.1 1.2 92
TRIPLE PEAK 8500 .6 .2 300* 1.3 1.2 108
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Basin Index (%) 288* 137
LOWER GREEN RIVER
BLACKS FORK JCT 8870 -M -M * 1.8 -M *
BUCK PASTURE 9700 .6 -M * 2.3 -M *
EF BLACKS FORK GS 9360 .6 -M * 1.8 -M *
HAMS FORK 7840 .0 .0 * 1.4 .7 200
HEWINTA 9519 -M .0 * 2.0 1.2 167
HICKERSON PARK 9145 .0 .0 * 1.5 1.0 150
HOLE-IN-ROCK 9150 .0 .0 * 1.3 1.2 108
INDIAN CREEK 9425 .7 .7 100* 1.5 1.2 125
KELLEY R.S. 8180 .6 .0 * 1.5 1.0 150
SPIRIT LK 10235 .9 -M * 2.0 -M *
STEEL CREEK PARK 10200 .0 .6 0* 2.4 1.4 171
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Basin Index (%) 100* 151
UPPER BEAR RIVER
BEAR RIVER RS 8777 .0 -M * 1.7 -M *
BUG LAKE 7950 .7 .0 * 1.5 1.3 115
BURTS MILLER RANCH 8000 .1 -M * .8 -M *
CHALK CREEK #1 8993 1.1 .3 367* 2.4 1.8 133
HAYDEN FORK 9212 .1 .0 * 2.5 1.5 167
KELLEY R.S. 8180 .6 .0 * 1.5 1.0 150
LILY LAKE 9156 .0 .0 * 2.5 1.4 179
MONTE CRISTO 8960 .6 .0 * 1.7 1.6 106
SALT RIVER SUMMIT 7760 .0 .0 * 1.3 1.0 130
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Basin Index (%) 1033* 140
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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.
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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.