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 SUNDAY: NOVEMBER 3 , 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 1.0 .3 333* 2.1 2.2 95
BLACK BEAR 8170 3.5 3.2 109* 3.9 4.3 91
BLIND BULL SUM 8650 1.7 1.6 106* 2.3 2.3 100
COTTONWOOD CREEK 7670 2.4 1.1 218* 3.7 3.0 123
EAST RIM DIVIDE 7930 .5 .4 125* 1.8 1.5 120
GRAND TARGHEE 9260 5.3 5.0 106 5.6 5.4 104
GRANITE CREEK 6770 .7 .3 233* 2.0 2.1 95
GRASSY LAKE 7265 2.1 1.4 150* 3.7 3.8 97
GROS VENTRE SUMMIT 8750 2.7 1.8 150 2.8 2.0 140
GUNSIGHT PASS 9820 2.9 1.1 264* 3.2 2.3 139
LEWIS LAKE DIVIDE 7850 .9 1.3 69* 2.4 3.5 69
PHILLIPS BENCH 8200 2.8 1.5 187* 3.7 2.7 137
SALT RIVER SUMMIT 7760 1.0 .3 333* 2.8 2.0 140
SNAKE RIVER STATION 6920 .8 .3 267* 1.9 2.8 68
SPRING CREEK DIVIDE 9000 2.2 1.3 169* 2.7 2.5 108
THUMB DIVIDE 7980 .7 .6 117* 1.9 2.4 79
TOGWOTEE PASS 9580 4.6 2.9 159 3.6 3.0 120
TWO OCEAN PLATEAU 9240 4.4 3.4 129 3.3 3.4 97
WILLOW CREEK 8380 2.4 1.2 200* 5.2 4.1 127
YOUNTS PEAK 8350 -M 1.6 * -M 2.4 *
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Basin Index (%) 147* 106
MADISON-GALLATIN
BLACK BEAR 8170 3.5 3.2 109* 3.9 4.3 91
CANYON 7870 1.1 .8 138* 2.2 2.1 105
MADISON PLATEAU 7750 .8 1.6 50* 2.7 3.1 87
WEST YELLOWSTONE 6700 .5 .2 250* 1.5 2.0 75
WHISKEY CREEK 6800 .7 .6 117* 1.8 2.6 69
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Basin Index (%) 103* 86
YELLOWSTONE
BEARTOOTH LAKE 9360 3.3 3.0 110 2.2 2.5 88
BURNT MTN 5880 1.7 .0 * 6.0 3.5 171
CANYON 7870 1.1 .8 138* 2.2 2.1 105
COLE CREEK 7850 4.8 2.8 171 4.2 3.2 131
EVENING STAR 9200 4.1 2.6 158 3.7 3.6 103
FISHER CREEK 9100 4.2 3.0 140* 3.1 3.9 79
NORTHEAST ENTRANCE 7350 .5 .0 * 1.3 2.0 65
PARKER PEAK 9400 4.3 2.9 148 3.3 2.8 118
SYLVAN LAKE 8420 2.6 1.9 137* 4.1 3.3 124
THUMB DIVIDE 7980 .7 .6 117* 1.9 2.4 79
TWO OCEAN PLATEAU 9240 4.4 3.4 129 3.3 3.4 97
WHITE MILL 8700 3.3 2.4 138* 2.7 3.1 87
WOLVERINE 7650 .1 .1 100* 1.5 2.0 75
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Basin Index (%) 149* 104
WIND RIVER
BURROUGHS CREEK 8750 -M 1.3 * -M 2.1 *
CASTLE CREEK 8400 .3 -M * 2.1 -M *
COLD SPRINGS 9630 2.8 1.0 280 3.9 2.0 195
DEER PARK 9700 2.9 1.7 171 3.4 3.3 103
HOBBS PARK 10100 4.1 2.1 195 4.2 2.5 168
KIRWIN 9550 3.7 1.8 206 2.8 2.1 133
LITTLE WARM 9370 2.7 1.3 208 3.5 2.1 167
OWL CREEK 8975 2.1 .8 262 2.2 1.4 157
SOUTH PASS 9040 2.3 1.4 164* 3.2 2.6 123
ST. LAWRENCE ALT 8620 1.6 .9 178 3.7 2.0 185
TOGWOTEE PASS 9580 4.6 2.9 159 3.6 3.0 120
TOWNSEND CREEK 8700 1.8 1.1 164 3.2 2.5 128
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Basin Index (%) 191 143
BIGHORN BASIN
BALD MTN. 9380 5.6 3.4 165 4.4 3.0 147
BEAR TRAP MEADOW 8200 2.4 .6 400 3.8 1.9 200
BONE SPRINGS DIV 9350 3.7 2.9 128 3.3 2.9 114
GRAVE SPRINGS 8550 3.6 1.0 360 4.3 2.4 179
KIRWIN 9550 3.7 1.8 206 2.8 2.1 133
MARQUETTE 8760 3.6 -M * 4.5 -M *
MIDDLE POWDER 7760 5.3 1.2 442* 5.2 2.7 193
OWL CREEK 8975 2.1 .8 262 2.2 1.4 157
POWDER RIVER PASS 9480 3.4 1.5 227 3.7 2.3 161
SHELL CREEK 9580 4.1 3.0 137 3.2 2.6 123
TIMBER CREEK 7950 2.3 .8 288 3.8 2.2 173
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Basin Index (%) 213 156
SHOSHONE RIVER
BLACKWATER 9780 4.8 3.0 160 2.9 3.0 97
EVENING STAR 9200 4.1 2.6 158 3.7 3.6 103
MARQUETTE 8760 3.6 -M * 4.5 -M *
SYLVAN ROAD 7120 1.0 .3 333* 3.1 2.6 119
YOUNTS PEAK 8350 -M 1.6 * -M 2.4 *
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Basin Index (%) 168* 105
POWDER RIVER
BEAR TRAP MEADOW 8200 2.4 .6 400 3.8 1.9 200
CLOUD PEAK RESERVOIR 9860 3.7 2.0 185 4.7 2.9 162
GRAVE SPRINGS 8550 3.6 1.0 360 4.3 2.4 179
HANSEN SAWMILL 8360 2.6 .6 433* 4.0 2.0 200
MIDDLE POWDER 7760 5.3 1.2 442* 5.2 2.7 193
POWDER RIVER PASS 9480 3.4 1.5 227 3.7 2.3 161
SOLDIER PARK 8720 1.9 -M * 3.5 -M *
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Basin Index (%) 304 181
TONGUE RIVER
BIG GOOSE 7990 2.4 1.0 240* 4.4 2.7 163
BONE SPRINGS DIV 9350 3.7 2.9 128 3.3 2.9 114
BURGESS JUNCTION 7880 2.9 1.5 193 4.4 2.6 169
DOME LAKE 8880 2.3 2.2 105 4.0 3.0 133
LITTLE GOOSE 8870 3.1 -M * 5.3 -M *
SUCKER CREEK 8880 4.3 1.7 253 5.3 2.9 183
TIE CREEK 6870 1.3 .3 433* 4.6 2.9 159
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Basin Index (%) 176 153
BELLE FOURCHE
COLE CANYON 5910 1.2 .0 * 6.9 2.3 300
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Basin Index (%) * 300
CHEYENNE RIVER BASIN
BLIND PARK 6890 1.9 .6 317* 7.5 2.7 278
NORTH RAPID CREEK 6130 2.9 .3 967* 7.6 2.4 317
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Basin Index (%) 533* 296
UPPER N. PLATTE
ARAPAHO RIDGE 10960 3.9 3.1 126 4.6 3.7 124
BLACKHALL MTN 9820 4.6 -M * 5.6 -M *
COLUMBINE 9160 2.0 .9 222* 4.7 3.0 157
DIVIDE PEAK 8880 2.6 1.7 153* 5.6 3.5 160
JOE WRIGHT 10120 2.5 2.8 89 6.1 4.0 152
LAPRELE CREEK 8375 1.1 .6 183* 3.0 2.2 136
MED BOW 10500 5.1 -M * 6.5 -M *
NORTH FRENCH CREEK 10130 -M 2.9 * -M 3.7 *
NEVER SUMMER 10280 3.7 2.5 148 4.4 -M *
OLD BATTLE 10000 4.6 2.9 159* 5.7 4.6 124
RAWAH 9020 1.9 .6 317* 4.7 2.7 174
SAGE CREEK BASIN 7850 .8 .6 133* 3.4 2.6 131
SAND LAKE 10050 5.2 2.8 186* 5.9 3.5 169
SOUTH BRUSH CREEK 8440 2.4 .7 343* 4.5 2.6 173
TOWER 10500 7.5 4.1 183* 8.3 5.0 166
WEBBER SPRINGS 9250 2.2 1.4 157* 4.3 3.6 119
WILLOW CREEK PASS 9540 2.8 1.4 200* 3.3 2.3 143
ZIRKEL 9340 1.7 1.4 121* 4.4 4.2 105
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Basin Index (%) 163* 144
SWEETWATER
DEER PARK 9700 2.9 1.7 171 3.4 3.3 103
LARSEN CREEK 9000 .1 -M * 2.2 -M *
SOUTH PASS 9040 2.3 1.4 164* 3.2 2.6 123
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Basin Index (%) 168* 112
LOWER N. PLATTE
CASPER MTN. 7900 6.7 1.3 515* 6.6 3.1 213
LAPRELE CREEK 8375 1.1 .6 183* 3.0 2.2 136
RENO HILL 8400 6.2 1.5 413 7.8 2.9 269
WINDY PEAK 7900 .9 .5 180* 3.3 2.0 165
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Basin Index (%) 382* 203
LARAMIE RIVER
BROOKLYN LAKE 10240 2.4 1.6 150* 3.4 2.6 131
CINNABAR PARK 9574 2.9 1.5 193* 4.3 3.2 134
CROW CREEK 8330 1.0 .6 167* 3.4 2.3 148
DEADMAN HILL 10220 3.6 2.4 150 4.5 2.7 167
RAWAH 9020 1.9 .6 317* 4.7 2.7 174
ROACH 9700 -M 1.4 * -M 2.8 *
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Basin Index (%) 176* 150
S. PLATTE
BLACK MOUNTAIN 8920 1.9 -M * 3.2 -M *
CROW CREEK 8330 1.0 .6 167* 3.4 2.3 148
DEADMAN HILL 10220 3.6 2.4 150 4.5 2.7 167
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Basin Index (%) 153* 158
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.2 .0 * 3.8 2.3 165
DIVIDE PEAK 8880 2.6 1.7 153* 5.6 3.5 160
ELK RIVER 8700 1.0 .2 500* 3.9 2.8 139
LITTLE SNAKE RIVER 8915 2.0 1.1 182* 6.0 4.9 122
OLD BATTLE 10000 4.6 2.9 159* 5.7 4.6 124
SAGE CREEK BASIN 7850 .8 .6 133* 3.4 2.6 131
SANDSTONE RS 8150 .8 .0 * 4.1 2.6 158
WHISKEY PARK 8950 4.2 1.2 350* 6.5 3.3 197
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Basin Index (%) 223* 147
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.7 1.6 106 1.9 2.0 95
BLIND BULL SUM 8650 1.7 1.6 106* 2.3 2.3 100
EAST RIM DIVIDE 7930 .5 .4 125* 1.8 1.5 120
ELKHART PARK G.S. 9400 1.9 1.1 173* 2.3 2.1 110
GROS VENTRE SUMMIT 8750 2.7 1.8 150 2.8 2.0 140
GUNSIGHT PASS 9820 2.9 1.1 264* 3.2 2.3 139
KENDALL R.S. 7740 .3 .5 60* 1.7 1.8 94
LOOMIS PARK 8240 1.1 .8 138* 2.3 2.0 115
NEW FORK LAKE 8340 .7 .7 100* 1.2 1.6 75
POCKET CREEK 9360 2.9 -M * 2.9 -M *
SNIDER BASIN 8060 .9 .3 300* 1.9 1.6 119
SPRING CREEK DIVIDE 9000 2.2 1.3 169* 2.7 2.5 108
TRIPLE PEAK 8500 2.5 1.4 179* 2.5 2.5 100
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Basin Index (%) 152* 110
LOWER GREEN RIVER
BLACKS FORK JCT 8870 .0 -M * 2.5 -M *
BUCK PASTURE 9700 1.0 -M * 3.3 -M *
EF BLACKS FORK GS 9360 .8 -M * 2.6 -M *
HAMS FORK 7840 .6 .3 200* 2.6 1.6 162
HEWINTA 9519 -M .2 * 2.8 2.3 122
HICKERSON PARK 9145 .4 .4 100* 2.6 2.2 118
HOLE-IN-ROCK 9150 .3 .3 100* 2.2 2.2 100
INDIAN CREEK 9425 1.7 2.2 77* 2.9 2.6 112
KELLEY R.S. 8180 1.3 .7 186* 2.8 2.1 133
SPIRIT LK 10235 1.8 -M * 3.6 -M *
STEEL CREEK PARK 10200 .2 1.6 12* 3.3 2.6 127
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Basin Index (%) 82* 123
UPPER BEAR RIVER
BEAR RIVER RS 8777 .5 -M * 2.5 -M *
BUG LAKE 7950 .6 .7 86* 2.2 2.5 88
BURTS MILLER RANCH 8000 .3 -M * 1.5 -M *
CHALK CREEK #1 8993 2.5 1.8 139* 3.7 3.5 106
HAYDEN FORK 9212 .5 .4 125* 3.4 2.9 117
KELLEY R.S. 8180 1.3 .7 186* 2.8 2.1 133
LILY LAKE 9156 .6 .8 75* 3.2 2.7 119
MONTE CRISTO 8960 1.5 .8 188* 2.8 3.2 88
SALT RIVER SUMMIT 7760 1.0 .3 333* 2.8 2.0 140
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Basin Index (%) 145* 111
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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.