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 MONDAY: OCTOBER 29 , 2012
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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 1.4 .1 1400* 2.7 1.8 150
BLACK BEAR 8170 2.7 2.6 104* 4.1 3.5 117
BLIND BULL SUM 8650 1.6 1.1 145* 2.0 1.8 111
COTTONWOOD CREEK 7670 1.3 .6 217* 3.4 2.4 142
EAST RIM DIVIDE 7930 .4 .1 400* 1.2 1.2 100
GRAND TARGHEE 9260 4.3 4.3 100* 4.5 4.9 92
GRANITE CREEK 6770 .7 .0 * 2.3 1.7 135
GRASSY LAKE 7265 2.3 .9 256* 4.0 3.0 133
GROS VENTRE SUMMIT 8750 1.1 1.6 69 1.8 1.6 112
GUNSIGHT PASS 9820 1.7 .9 189* 2.2 2.0 110
LEWIS LAKE DIVIDE 7850 2.7 .7 386* 4.9 2.9 169
PHILLIPS BENCH 8200 2.1 .9 233* 3.8 2.1 181
SALT RIVER SUMMIT 7760 .7 .0 * 2.0 1.6 125
SNAKE RIVER STATION 6920 1.1 .1 1100* 3.0 2.3 130
SPRING CREEK DIVIDE 9000 2.5 .9 278* 3.3 2.0 165
THUMB DIVIDE 7980 1.2 .3 400* 2.2 2.0 110
TOGWOTEE PASS 9580 2.2 2.5 88* 2.9 2.4 121
TWO OCEAN PLATEAU 9240 2.7 2.9 93* 3.3 2.8 118
WILLOW CREEK 8380 2.1 .7 300* 4.1 3.3 124
YOUNTS PEAK 8350 1.3 1.4 93* 1.9 2.0 95
----- -----
Basin wide percent 160* 126
MADISON-GALLATIN
BLACK BEAR 8170 2.7 2.6 104* 4.1 3.5 117
CANYON 7870 1.3 .4 325* 1.7 1.8 94
MADISON PLATEAU 7750 1.8 1.1 164* 3.2 2.6 123
WEST YELLOWSTONE 6700 .9 .0 * 1.6 1.7 94
WHISKEY CREEK 6800 .9 .3 300* 1.8 2.1 86
----- -----
Basin wide percent 173* 106
YELLOWSTONE
BEARTOOTH LAKE 9360 1.8 2.4 75 2.5 2.0 125
BURNT MTN 5880 .0 .0 100* 2.4 3.1 77
CANYON 7870 1.3 .4 325* 1.7 1.8 94
COLE CREEK 7850 2.0 2.5 80 3.0 2.9 103
EVENING STAR 9200 2.2 2.2 100* 4.1 2.9 141
FISHER CREEK 9100 3.4 2.4 142* 4.6 3.2 144
NORTHEAST ENTRANCE 7350 .0 .0 100* 1.9 1.6 119
PARKER PEAK 9400 2.1 2.4 88 2.5 2.4 104
SYLVAN LAKE 8420 2.1 1.4 150* 3.4 2.7 126
THUMB DIVIDE 7980 1.2 .3 400* 2.2 2.0 110
TWO OCEAN PLATEAU 9240 2.7 2.9 93* 3.3 2.8 118
WHITE MILL 8700 1.3 1.9 68* 3.4 2.5 136
WOLVERINE 7650 .8 .0 * 1.5 1.7 88
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Basin wide percent 111* 116
WIND RIVER
BURROUGHS CREEK 8750 1.7 .9 189* 2.6 1.7 153
CASTLE CREEK 8400 .8 -M * 2.1 -M *
COLD SPRINGS 9630 2.0 .5 400* 2.7 1.7 159
DEER PARK 9700 1.6 1.6 100* 2.3 2.7 85
HOBBS PARK 10100 2.8 1.8 156 2.7 2.2 123
KIRWIN 9550 1.6 1.5 107 2.6 1.8 144
LITTLE WARM 9370 1.8 1.1 164 2.3 1.8 128
OWL CREEK 8975 .9 .6 150 1.3 1.2 108
SOUTH PASS 9040 1.0 1.2 83* 1.3 2.2 59
ST. LAWRENCE ALT 8620 .6 .6 100* 1.6 1.7 94
TOGWOTEE PASS 9580 2.2 2.5 88* 2.9 2.4 121
TOWNSEND CREEK 8700 .5 .7 71* 2.0 2.1 95
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Basin wide percent 128* 113
BIGHORN BASIN
BALD MTN. 9380 2.0 2.8 71 1.7 2.6 65
BEAR TRAP MEADOW 8200 .6 .4 150* 2.0 1.6 125
BONE SPRINGS DIV 9350 1.6 2.4 67 2.1 2.6 81
GRAVE SPRINGS 8550 .4 .8 50* 1.5 2.1 71
KIRWIN 9550 1.6 1.5 107 2.6 1.8 144
MARQUETTE 8760 .6 -M * 1.3 -M *
MIDDLE POWDER 7760 .4 .8 50* 2.0 2.3 87
OWL CREEK 8975 .9 .6 150 1.3 1.2 108
POWDER RIVER PASS 9480 1.9 1.2 158 2.5 2.0 125
SHELL CREEK 9580 2.7 2.7 100 2.7 2.2 123
TIMBER CREEK 7950 .4 .4 100* 1.7 2.0 85
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Basin wide percent 92 99
SHOSHONE RIVER
BLACKWATER 9780 2.9 2.6 112 2.9 2.6 112
EVENING STAR 9200 2.2 2.2 100* 4.1 2.9 141
MARQUETTE 8760 .6 -M * 1.3 -M *
SYLVAN ROAD 7120 1.3 .1 1300* 2.6 2.1 124
YOUNTS PEAK 8350 1.3 1.4 93* 1.9 2.0 95
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Basin wide percent 122* 120
POWDER RIVER
BEAR TRAP MEADOW 8200 .6 .4 150* 2.0 1.6 125
CLOUD PEAK RESERVOIR 9860 1.2 1.7 71 2.6 2.6 100
GRAVE SPRINGS 8550 .4 .8 50* 1.5 2.1 71
HANSEN SAWMILL 8360 .4 .3 133* 1.7 1.7 100
MIDDLE POWDER 7760 .4 .8 50* 2.0 2.3 87
POWDER RIVER PASS 9480 1.9 1.2 158 2.5 2.0 125
SOLDIER PARK 8720 .2 -M * 1.6 -M *
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Basin wide percent 94* 100
TONGUE RIVER
BIG GOOSE 7990 .4 .9 44* 1.6 2.4 67
BONE SPRINGS DIV 9350 1.6 2.4 67 2.1 2.6 81
BURGESS JUNCTION 7880 .2 1.2 17* 1.9 2.3 83
DOME LAKE 8880 1.0 1.6 62 2.4 2.6 92
LITTLE GOOSE 8870 .5 -M * 2.4 -M *
SUCKER CREEK 8880 .9 1.5 60 1.9 2.6 73
TIE CREEK 6870 .0 .0 100* 1.4 2.6 54
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Basin wide percent 54* 75
BELLE FOURCHE
COLE CANYON 5910 .0 .0 100* 1.5 1.8 83
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Basin wide percent * 83
CHEYENNE RIVER BASIN
BLIND PARK 6890 .0 .0 100* 1.9 2.1 90
NORTH RAPID CREEK 6130 .0 .0 100* 1.4 2.0 70
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Basin wide percent * 80
UPPER N. PLATTE
ARAPAHO RIDGE 10960 1.7 -M * 2.1 -M *
BLACKHALL MTN 9820 1.5 -M * 3.0 -M *
COLUMBINE 9160 .5 .3 167* 2.1 2.5 84
DIVIDE PEAK 8880 .9 -M * 1.4 -M *
JOE WRIGHT 10120 1.5 2.2 68* 4.7 3.2 147
LAPRELE CREEK 8375 .9 -M * 1.7 -M *
NORTH FRENCH CREEK 10130 1.9 -M * 2.8 -M *
NEVER SUMMER 10280 3.2 -M * 3.1 -M *
OLD BATTLE 10000 2.0 -M * 2.7 -M *
RAWAH 9020 1.0 -M * 3.0 -M *
SAGE CREEK BASIN 7850 .8 -M * 1.0 -M *
SAND LAKE 10050 1.8 -M * 2.8 -M *
SOUTH BRUSH CREEK 8440 1.0 -M * 2.0 -M *
TOWER 10500 1.8 -M * 2.2 -M *
WEBBER SPRINGS 9250 1.3 -M * 2.2 -M *
WILLOW CREEK PASS 9540 2.2 -M * 2.9 1.8 161
ZIRKEL 9340 1.0 -M * 2.0 -M *
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Basin wide percent 80* 129*
SWEETWATER
DEER PARK 9700 1.6 1.6 100* 2.3 2.7 85
LARSEN CREEK 9000 .5 -M * 2.6 -M *
SOUTH PASS 9040 1.0 1.2 83* 1.3 2.2 59
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Basin wide percent 93* 73
LOWER N. PLATTE
CASPER MTN. 7900 .7 -M * 1.0 -M *
LAPRELE CREEK 8375 .9 -M * 1.7 -M *
RENO HILL 8400 .8 -M * 1.8 -M *
WINDY PEAK 7900 1.0 -M * 2.1 -M *
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Basin wide percent * *
LARAMIE RIVER
BROOKLYN LAKE 10240 1.2 -M * 1.7 -M *
CINNABAR PARK 9574 1.4 -M * 2.1 -M *
CROW CREEK 8330 1.2 -M * 2.1 -M *
DEADMAN HILL 10220 2.5 2.0 125 2.5 2.3 109
RAWAH 9020 1.0 -M * 3.0 -M *
ROACH 9700 1.2 .9 133* 2.4 2.2 109
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Basin wide percent 128* 109*
S. PLATTE
BLACK MOUNTAIN 8920 .9 -M * 2.1 -M *
CROW CREEK 8330 1.2 -M * 2.1 -M *
DEADMAN HILL 10220 2.5 2.0 125 2.5 2.3 109
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Basin wide percent 125* 109*
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 -M * .8 -M *
DIVIDE PEAK 8880 .9 -M * 1.4 -M *
ELK RIVER 8700 .8 .2 400* 1.8 2.3 78
LITTLE SNAKE RIVER 8915 1.4 -M * 2.8 -M *
OLD BATTLE 10000 2.0 -M * 2.7 -M *
SAGE CREEK BASIN 7850 .8 -M * 1.0 -M *
SANDSTONE RS 8150 .6 -M * .9 -M *
WHISKEY PARK 8950 1.3 -M * 2.6 -M *
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Basin wide percent 400* 78*
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.9 1.2 158* 2.6 1.6 162
BLIND BULL SUM 8650 1.6 1.1 145* 2.0 1.8 111
EAST RIM DIVIDE 7930 .4 .1 400* 1.2 1.2 100
ELKHART PARK G.S. 9400 1.4 .8 175* 2.3 1.7 135
GROS VENTRE SUMMIT 8750 1.1 1.6 69 1.8 1.6 112
GUNSIGHT PASS 9820 1.7 .9 189* 2.2 2.0 110
KENDALL R.S. 7740 .5 .0 * 1.8 1.4 129
LOOMIS PARK 8240 1.0 .4 250* 1.9 1.6 119
NEW FORK LAKE 8340 .5 .3 167* 1.0 1.3 77
POCKET CREEK 9360 2.9 -M * 3.1 -M *
SNIDER BASIN 8060 .7 .1 700* 2.4 1.3 185
SPRING CREEK DIVIDE 9000 2.5 .9 278* 3.3 2.0 165
TRIPLE PEAK 8500 1.3 .9 144* 3.3 2.0 165
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Basin wide percent 176* 132
LOWER GREEN RIVER
BLACKS FORK JCT 8870 -M -M * 1.4 -M *
BUCK PASTURE 9700 .5 -M * 2.4 -M *
EF BLACKS FORK GS 9308 .6 -M * 1.7 -M *
HAMS FORK 7840 .4 .0 * 2.1 1.3 162
HEWINTA 9519 -M .0 * 1.5 1.9 79
HICKERSON PARK 9145 .0 .0 100* 1.5 1.9 79
HOLE-IN-ROCK 9150 .4 .0 * 1.4 1.9 74
INDIAN CREEK 9425 2.6 1.7 153* 2.9 2.0 145
KELLEY R.S. 8180 .9 .4 225* 2.2 1.7 129
SPIRIT LK 10223 .2 1.7 12 2.4 5.8 41
STEEL CREEK PARK 10200 -M 1.3 * 1.8 2.2 82
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Basin wide percent 118* 84
UPPER BEAR RIVER
BEAR RIVER RS 8500 .3 -M * 1.5 -M *
BUG LAKE 7950 1.9 .0 * 3.5 2.0 175
BURTS MILLER RANCH 8000 .6 .0 * 1.3 2.1 62
CHALK CREEK #1 8993 1.6 1.3 123* 3.3 2.9 114
HAYDEN FORK 9212 .2 .0 * 1.8 2.4 75
KELLEY R.S. 8180 .9 .4 225* 2.2 1.7 129
LILY LAKE 9156 -M .6 * 1.4 2.3 61
MONTE CRISTO 8960 3.6 .2 1800* 4.9 2.6 188
SALT RIVER SUMMIT 7760 .7 .0 * 2.0 1.6 125
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Basin wide percent 500* 116
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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 wide percent 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.
Reference period for comparison of conditions is 1981-2010.
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.
