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: NOVEMBER 2 , 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 .9 .2 450* 2.2 2.1 105
BLACK BEAR 8170 3.0 3.0 100* 3.4 4.1 83
BLIND BULL SUM 8650 1.7 1.5 113* 2.3 2.2 105
COTTONWOOD CREEK 7670 2.3 1.0 230* 3.7 2.8 132
EAST RIM DIVIDE 7930 .4 .3 133* 1.7 1.4 121
GRAND TARGHEE 9260 5.2 4.8 108 5.5 5.2 106
GRANITE CREEK 6770 .7 .2 350* 2.0 2.1 95
GRASSY LAKE 7265 2.1 1.3 162* 3.5 3.6 97
GROS VENTRE SUMMIT 8750 2.7 1.7 159 2.5 1.9 132
GUNSIGHT PASS 9820 2.8 1.0 280* 3.0 2.2 136
LEWIS LAKE DIVIDE 7850 .7 1.1 64* 2.1 3.4 62
PHILLIPS BENCH 8200 2.7 1.4 193* 3.6 2.5 144
SALT RIVER SUMMIT 7760 1.0 .3 333* 2.8 1.9 147
SNAKE RIVER STATION 6920 .8 .3 267* 1.9 2.7 70
SPRING CREEK DIVIDE 9000 2.1 1.2 175* 2.7 2.4 112
THUMB DIVIDE 7980 .5 .5 100* 1.7 2.3 74
TOGWOTEE PASS 9580 4.6 2.8 164 3.5 2.9 121
TWO OCEAN PLATEAU 9240 4.4 3.3 133 3.3 3.3 100
WILLOW CREEK 8380 2.4 1.1 218* 5.2 3.9 133
YOUNTS PEAK 8350 -M 1.5 * -M 2.3 *
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Basin Index (%) 152* 107
MADISON-GALLATIN
BLACK BEAR 8170 3.0 3.0 100* 3.4 4.1 83
CANYON 7870 .9 .7 129* 2.2 2.0 110
MADISON PLATEAU 7750 .3 1.5 20* 2.2 3.0 73
WEST YELLOWSTONE 6700 .2 .1 200* 1.3 1.9 68
WHISKEY CREEK 6800 .4 .6 67* 1.5 2.5 60
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Basin Index (%) 81* 79
YELLOWSTONE
BEARTOOTH LAKE 9360 3.2 2.9 110 2.0 2.4 83
BURNT MTN 5880 1.7 .0 * 5.8 3.5 166
CANYON 7870 .9 .7 129* 2.2 2.0 110
COLE CREEK 7850 4.9 2.8 175 4.1 3.2 128
EVENING STAR 9200 3.8 2.5 152* 3.5 3.4 103
FISHER CREEK 9100 3.9 2.9 134* 3.0 3.7 81
NORTHEAST ENTRANCE 7350 .4 .0 * 1.2 1.9 63
PARKER PEAK 9400 4.1 2.8 146 3.2 2.7 119
SYLVAN LAKE 8420 2.6 1.8 144* 4.0 3.2 125
THUMB DIVIDE 7980 .5 .5 100* 1.7 2.3 74
TWO OCEAN PLATEAU 9240 4.4 3.3 133 3.3 3.3 100
WHITE MILL 8700 3.0 2.3 130* 2.4 3.0 80
WOLVERINE 7650 .2 .0 * 1.5 2.0 75
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Basin Index (%) 149* 104
WIND RIVER
BURROUGHS CREEK 8750 -M 1.2 * -M 2.0 *
CASTLE CREEK 8400 .2 -M * 1.9 -M *
COLD SPRINGS 9630 2.7 .9 300 4.0 2.0 200
DEER PARK 9700 2.8 1.7 165 3.2 3.2 100
HOBBS PARK 10100 4.0 2.0 200 4.0 2.4 167
KIRWIN 9550 3.6 1.7 212 2.7 2.0 135
LITTLE WARM 9370 2.7 1.3 208 3.4 2.0 170
OWL CREEK 8975 2.1 .8 262 2.3 1.3 177
SOUTH PASS 9040 2.3 1.4 164* 3.1 2.5 124
ST. LAWRENCE ALT 8620 1.2 .9 133 3.3 1.9 174
TOGWOTEE PASS 9580 4.6 2.8 164 3.5 2.9 121
TOWNSEND CREEK 8700 1.6 1.0 160 2.8 2.4 117
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Basin Index (%) 190 143
BIGHORN BASIN
BALD MTN. 9380 5.6 3.2 175 4.1 2.9 141
BEAR TRAP MEADOW 8200 2.3 .6 383 3.8 1.8 211
BONE SPRINGS DIV 9350 3.6 2.9 124 3.2 2.8 114
GRAVE SPRINGS 8550 3.5 .9 389* 4.3 2.4 179
KIRWIN 9550 3.6 1.7 212 2.7 2.0 135
MARQUETTE 8760 3.6 -M * 4.4 -M *
MIDDLE POWDER 7760 5.3 1.1 482* 5.1 2.6 196
OWL CREEK 8975 2.1 .8 262 2.3 1.3 177
POWDER RIVER PASS 9480 3.4 1.5 227 3.5 2.3 152
SHELL CREEK 9580 4.0 3.0 133 3.1 2.5 124
TIMBER CREEK 7950 2.1 .7 300 3.8 2.2 173
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Basin Index (%) 216 157
SHOSHONE RIVER
BLACKWATER 9780 4.7 2.9 162 2.7 2.9 93
EVENING STAR 9200 3.8 2.5 152* 3.5 3.4 103
MARQUETTE 8760 3.6 -M * 4.4 -M *
SYLVAN ROAD 7120 .9 .3 300* 3.0 2.4 125
YOUNTS PEAK 8350 -M 1.5 * -M 2.3 *
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Basin Index (%) 165* 106
POWDER RIVER
BEAR TRAP MEADOW 8200 2.3 .6 383 3.8 1.8 211
CLOUD PEAK RESERVOIR 9860 3.7 2.0 185 4.7 2.8 168
GRAVE SPRINGS 8550 3.5 .9 389* 4.3 2.4 179
HANSEN SAWMILL 8360 2.5 .5 500* 3.8 1.9 200
MIDDLE POWDER 7760 5.3 1.1 482* 5.1 2.6 196
POWDER RIVER PASS 9480 3.4 1.5 227 3.5 2.3 152
SOLDIER PARK 8720 1.9 -M * 3.5 -M *
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Basin Index (%) 314* 183
TONGUE RIVER
BIG GOOSE 7990 2.2 1.0 220* 4.2 2.6 162
BONE SPRINGS DIV 9350 3.6 2.9 124 3.2 2.8 114
BURGESS JUNCTION 7880 2.8 1.4 200 4.1 2.5 164
DOME LAKE 8880 2.2 2.1 105 3.9 2.9 134
LITTLE GOOSE 8870 3.1 -M * 5.2 -M *
SUCKER CREEK 8880 4.3 1.6 269 5.1 2.8 182
TIE CREEK 6870 1.3 .3 433* 4.6 2.8 164
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Basin Index (%) 176 153
BELLE FOURCHE
COLE CANYON 5910 .9 .0 * 6.9 2.3 300
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Basin Index (%) * 300
CHEYENNE RIVER BASIN
BLIND PARK 6890 1.7 .4 425* 7.4 2.6 285
NORTH RAPID CREEK 6130 3.0 .2 1500* 7.4 2.4 308
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Basin Index (%) 783* 296
UPPER N. PLATTE
ARAPAHO RIDGE 10960 3.9 3.0 130 4.6 3.5 131
BLACKHALL MTN 9820 4.4 -M * 5.8 -M *
COLUMBINE 9160 2.1 .8 262* 4.7 2.9 162
DIVIDE PEAK 8880 2.6 1.6 162* 5.6 3.4 165
JOE WRIGHT 10120 2.4 2.7 89 6.1 3.8 161
LAPRELE CREEK 8375 .9 .5 180* 2.9 2.1 138
MED BOW 10500 5.1 -M * 6.5 -M *
NORTH FRENCH CREEK 10130 -M 2.8 * -M 3.6 *
NEVER SUMMER 10280 3.6 2.5 144 4.4 -M *
OLD BATTLE 10000 4.6 2.8 164* 5.5 4.5 122
RAWAH 9020 2.0 .5 400* 4.7 2.6 181
SAGE CREEK BASIN 7850 .7 .5 140* 3.4 2.5 136
SAND LAKE 10050 5.2 2.7 193* 5.7 3.4 168
SOUTH BRUSH CREEK 8440 2.3 .6 383* 4.5 2.5 180
TOWER 10500 7.5 3.8 197* 8.2 4.9 167
WEBBER SPRINGS 9250 2.2 1.3 169* 4.3 3.4 126
WILLOW CREEK PASS 9540 2.8 1.4 200* 3.2 2.2 145
ZIRKEL 9340 1.6 1.3 123* 4.6 4.0 115
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Basin Index (%) 171* 149
SWEETWATER
DEER PARK 9700 2.8 1.7 165 3.2 3.2 100
LARSEN CREEK 9000 .1 -M * 2.2 -M *
SOUTH PASS 9040 2.3 1.4 164* 3.1 2.5 124
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Basin Index (%) 165* 111
LOWER N. PLATTE
CASPER MTN. 7900 6.9 1.2 575* 6.5 3.0 217
LAPRELE CREEK 8375 .9 .5 180* 2.9 2.1 138
RENO HILL 8400 6.2 1.4 443* 7.8 2.8 279
WINDY PEAK 7900 .8 .5 160* 3.2 1.9 168
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Basin Index (%) 411* 208
LARAMIE RIVER
BROOKLYN LAKE 10240 2.3 1.5 153* 3.4 2.5 136
CINNABAR PARK 9574 2.8 1.3 215* 4.2 3.0 140
CROW CREEK 8330 .9 .5 180* 3.4 2.2 155
DEADMAN HILL 10220 3.5 2.3 152 4.5 2.6 173
RAWAH 9020 2.0 .5 400* 4.7 2.6 181
ROACH 9700 -M 1.3 * -M 2.7 *
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Basin Index (%) 189* 157
S. PLATTE
BLACK MOUNTAIN 8920 1.8 -M * 3.2 -M *
CROW CREEK 8330 .9 .5 180* 3.4 2.2 155
DEADMAN HILL 10220 3.5 2.3 152 4.5 2.6 173
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Basin Index (%) 157* 165
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.3 .0 * 3.7 2.2 168
DIVIDE PEAK 8880 2.6 1.6 162* 5.6 3.4 165
ELK RIVER 8700 1.0 .2 500* 3.9 2.7 144
LITTLE SNAKE RIVER 8915 1.9 1.0 190* 5.9 4.8 123
OLD BATTLE 10000 4.6 2.8 164* 5.5 4.5 122
SAGE CREEK BASIN 7850 .7 .5 140* 3.4 2.5 136
SANDSTONE RS 8150 .8 .0 * 4.1 2.5 164
WHISKEY PARK 8950 4.3 1.1 391* 6.5 3.2 203
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Basin Index (%) 239* 150
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.6 1.5 107 1.8 1.9 95
BLIND BULL SUM 8650 1.7 1.5 113* 2.3 2.2 105
EAST RIM DIVIDE 7930 .4 .3 133* 1.7 1.4 121
ELKHART PARK G.S. 9400 1.9 1.1 173* 2.2 2.0 110
GROS VENTRE SUMMIT 8750 2.7 1.7 159 2.5 1.9 132
GUNSIGHT PASS 9820 2.8 1.0 280* 3.0 2.2 136
KENDALL R.S. 7740 .3 .4 75* 1.6 1.7 94
LOOMIS PARK 8240 1.0 .7 143* 2.3 1.9 121
NEW FORK LAKE 8340 .5 .6 83* .9 1.5 60
POCKET CREEK 9360 2.7 -M * 2.9 -M *
SNIDER BASIN 8060 .9 .2 450* 1.8 1.5 120
SPRING CREEK DIVIDE 9000 2.1 1.2 175* 2.7 2.4 112
TRIPLE PEAK 8500 2.5 1.3 192* 2.4 2.5 96
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Basin Index (%) 160* 109
LOWER GREEN RIVER
BLACKS FORK JCT 8870 -M -M * 2.5 -M *
BUCK PASTURE 9700 .8 -M * 3.3 -M *
EF BLACKS FORK GS 9360 .7 -M * 2.6 -M *
HAMS FORK 7840 .5 .2 250* 2.5 1.6 156
HEWINTA 9519 .0 .1 0* 2.7 2.3 117
HICKERSON PARK 9145 1.1 .3 367* 2.5 2.1 119
HOLE-IN-ROCK 9150 .3 .3 100* 2.2 2.1 105
INDIAN CREEK 9425 1.7 2.1 81* 2.9 2.5 116
KELLEY R.S. 8180 1.3 .6 217* 2.7 2.1 129
SPIRIT LK 10235 1.7 -M * 3.5 -M *
STEEL CREEK PARK 10200 .0 1.6 0* 3.3 2.6 127
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Basin Index (%) 94* 123
UPPER BEAR RIVER
BEAR RIVER RS 8777 .5 -M * 2.5 -M *
BUG LAKE 7950 .5 .6 83* 2.1 2.4 88
BURTS MILLER RANCH 8000 .4 -M * 1.3 -M *
CHALK CREEK #1 8993 2.4 1.7 141* 3.7 3.4 109
HAYDEN FORK 9212 .6 .3 200* 3.4 2.8 121
KELLEY R.S. 8180 1.3 .6 217* 2.7 2.1 129
LILY LAKE 9156 .7 .7 100* 3.5 2.6 135
MONTE CRISTO 8960 1.4 .8 175* 2.7 3.1 87
SALT RIVER SUMMIT 7760 1.0 .3 333* 2.8 1.9 147
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Basin Index (%) 158* 114
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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.