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 25 , 2010
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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 .9 .3 300* 1.9 1.5 127
COTTONWOOD CREEK 7670 .7 .6 117* 2.9 2.3 126
GRAND TARGHEE 9260 2.5 -M * 2.5 -M *
GRANITE CREEK 6770 .6 .3 200* 1.9 1.3 146
GRASSY LAKE 7265 .7 .9 78* 3.0 2.5 120
GROS VENTRE SUMMIT 8750 .9 1.0 90* 1.2 1.4 86
GUNSIGHT PASS 9820 .9 -M * 1.5 -M *
LEWIS LAKE DIVIDE 7850 1.9 .7 271* 3.2 2.3 139
PHILLIPS BENCH 8200 1.7 .9 189* 2.1 1.7 124
SALT RIVER SUMMIT 7760 .5 .2 250* 2.1 1.5 140
SNAKE RIVER STATION 6920 .6 .3 200* 2.3 1.7 135
SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.0 1.8 111
THUMB DIVIDE 7980 .8 .5 160* 1.3 1.6 81
TOGWOTEE PASS 9580 1.5 1.9 79* 2.2 2.1 105
TWO OCEAN PLATEAU 9240 2.3 2.3 100* 1.9 2.3 83
WILLOW CREEK 8380 .8 1.2 67* 3.7 2.9 128
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Basin wide percent of average 124* 118
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 1.4 2.1 67* 1.9 1.6 119
BLACK BEAR 8170 1.6 1.8 89* 3.6 2.5 144
CANYON 7870 .4 .4 100* 1.4 1.4 100
FISHER CREEK 9100 1.1 1.9 58* 2.0 2.5 80
MADISON PLATEAU 7750 .5 1.0 50* 2.0 2.0 100
NORTHEAST ENTRANCE 7350 .0 .2 0* 1.5 1.2 125
PARKER PEAK 9400 .5 2.2 23* 1.5 1.9 79
SYLVAN LAKE 8420 .7 1.4 50* 2.1 2.0 105
THUMB DIVIDE 7980 .8 .5 160* 1.3 1.6 81
TWO OCEAN PLATEAU 9240 2.3 2.3 100* 1.9 2.3 83
WHISKEY CREEK 6800 .1 .4 25* 1.5 1.7 88
WHITE MILL 8700 .6 1.3 46* 1.9 2.1 90
WOLVERINE 7650 .2 .3 67* 1.2 1.5 80
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Basin wide percent of average 65* 98
WIND RIVER
BURROUGHS CREEK 8750 1.1 .6 183* 1.1 1.3 85
CASTLE CREEK 8400 .3 -M * .7 -M *
COLD SPRINGS 9630 .2 .8 25* .4 1.5 27
DEER PARK 9700 1.2 1.7 71* 1.8 2.0 90
HOBBS PARK 10100 .6 1.9 32 .7 1.7 41
LITTLE WARM 9370 .4 .8 50* .4 1.4 29
SOUTH PASS 9040 .6 1.2 50* 1.3 1.6 81
ST. LAWRENCE ALT 8620 .0 .7 0* .6 1.4 43
TOGWOTEE PASS 9580 1.5 1.9 79* 2.2 2.1 105
TOWNSEND CREEK 8700 .2 .8 25* 1.2 1.7 71
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Basin wide percent of average 56* 66
BIGHORN BASIN
BALD MTN. 9380 .5 2.2 23* 1.5 1.9 79
BEAR TRAP MEADOW 8200 .0 .5 0* 1.3 1.4 93
BLACKWATER 9780 1.6 2.5 64* 1.6 2.1 76
BONE SPRINGS DIV 9350 .7 2.0 35 .8 2.0 40
EVENING STAR 9200 .9 2.0 45* 1.8 2.1 86
GRAVE SPRINGS 8550 .0 .9 0* .7 1.7 41
KIRWIN 9550 1.0 1.5 67 1.2 1.4 86
MARQUETTE 8760 .0 1.5 0 .4 1.9 21
MIDDLE POWDER 7760 .0 1.0 0* .8 2.1 38
OWL CREEK 8975 .0 .7 0 .4 .9 44
POWDER RIVER PASS 9480 .7 .9 78* 1.4 1.6 88
SHELL CREEK 9580 1.2 2.2 55 .6 1.6 38
SYLVAN LAKE 8420 .7 1.4 50* 2.1 2.0 105
SYLVAN ROAD 7120 .0 .3 0* 1.6 1.5 107
TIMBER CREEK 7950 .0 .8 0 .5 1.3 38
YOUNTS PEAK 8350 .9 1.1 82* 1.3 1.5 87
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Basin wide percent of average 38* 67
SHOSHONE RIVER
BLACKWATER 9780 1.6 2.5 64* 1.6 2.1 76
EVENING STAR 9200 .9 2.0 45* 1.8 2.1 86
KIRWIN 9550 1.0 1.5 67 1.2 1.4 86
MARQUETTE 8760 .0 1.5 0 .4 1.9 21
SYLVAN LAKE 8420 .7 1.4 50* 2.1 2.0 105
SYLVAN ROAD 7120 .0 .3 0* 1.6 1.5 107
YOUNTS PEAK 8350 .9 1.1 82* 1.3 1.5 87
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Basin wide percent of average 50* 80
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .0 .5 0* 1.3 1.4 93
BIG GOOSE 7990 .0 .6 0* 1.7 1.8 94
BONE SPRINGS DIV 9350 .7 2.0 35 .8 2.0 40
BURGESS JUNCTION 7880 .1 1.2 8* 1.3 1.8 72
CLOUD PEAK RESERVOIR 9860 .7 1.3 54* 1.9 2.1 90
DOME LAKE 8880 .0 1.4 0 1.2 2.0 60
GRAVE SPRINGS 8550 .0 .9 0* .7 1.7 41
HANSEN SAWMILL 8360 .0 .6 0* .8 1.5 53
LITTLE GOOSE 8870 .0 -M * 2.8 -M *
MIDDLE POWDER 7760 .0 1.0 0* .8 2.1 38
POWDER RIVER PASS 9480 .7 .9 78* 1.4 1.6 88
SOLDIER PARK 8720 .0 -M * 1.0 -M *
SUCKER CREEK 8880 .0 1.0 0* .7 2.0 35
TIE CREEK 6870 .0 .6 0* .9 2.1 43
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Basin wide percent of average 18* 61
BELLE FOURCHE
BLIND PARK 6890 .0 .2 0* 3.0 2.1 143
COLE CANYON 5910 .0 .6 0* .8 1.5 53
NORTH RAPID CREEK 6130 .0 .3 0* 3.2 2.0 160
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Basin wide percent of average 0* 125
UPPER N. PLATTE RIVER
COLUMBINE 9160 .9 .4 225* 3.4 1.8 189
DIVIDE PEAK 8880 .4 1.3 31* 2.4 2.1 114
ELK RIVER 8700 .7 .4 175* 2.7 1.7 159
JOE WRIGHT 10120 2.3 1.8 128* 5.4 2.7 200
NORTH FRENCH CREEK 10130 1.7 2.4 71* 2.8 2.5 112
OLD BATTLE 10000 2.9 2.2 132* 3.7 2.7 137
SAGE CREEK BASIN 7850 .1 .8 13* 2.5 1.2 208
SOUTH BRUSH CREEK 8440 .6 .4 150* 2.5 2.1 119
TOWER 10500 4.1 2.3 178* 5.1 2.9 176
WEBBER SPRINGS 9250 1.0 1.2 83* 3.3 2.3 143
WILLOW CREEK PASS 9540 1.2 .8 150* -M 1.6 *
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Basin wide percent of average 114* 154
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .9 1.6 56* 1.9 1.8 106
CASPER MTN. 7900 .0 1.3 0* 1.7 2.0 85
DEADMAN HILL 10220 2.5 1.7 147* 4.1 2.0 205
DEER PARK 9700 1.2 1.7 71* 1.8 2.0 90
LAPRELE CREEK 8375 .0 .7 0* .8 1.5 53
RENO HILL 8400 .1 1.3 8* 1.3 2.0 65
ROACH 9700 1.2 .7 171* 2.6 1.8 144
SAND LAKE 10050 2.8 2.4 117* 3.0 2.3 130
SOUTH PASS 9040 .6 1.2 50* 1.3 1.6 81
WINDY PEAK 7900 .1 .3 33* 2.0 1.3 154
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Basin wide percent of average 73* 112
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .3 0* 2.8 1.5 187
DIVIDE PEAK 8880 .4 1.3 31* 2.4 2.1 114
OLD BATTLE 10000 2.9 2.2 132* 3.7 2.7 137
SANDSTONE RS 8150 .0 .3 0* 2.9 1.8 161
WHISKEY PARK 8950 1.4 1.2 117* 3.2 2.3 139
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Basin wide percent of average 89* 144
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .7 .9 78* 1.9 1.4 136
BLIND BULL SUM 8650 1.8 1.1 164* 1.7 1.6 106
EAST RIM DIVIDE 7930 .1 .3 33* .7 1.0 70
ELKHART PARK G.S. 9400 .4 .6 67* 1.3 1.5 87
GROS VENTRE SUMMIT 8750 .9 1.0 90* 1.2 1.4 86
GUNSIGHT PASS 9820 .9 -M * 1.5 -M *
KENDALL R.S. 7740 .2 .4 50* 1.5 1.2 125
LOOMIS PARK 8240 .6 .6 100* 1.4 1.4 100
NEW FORK LAKE 8340 .2 .3 67* .5 1.2 42
POCKET CREEK 9360 .5 -M * 1.6 -M *
SNIDER BASIN 8060 .4 .5 80* 1.7 1.2 142
SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.0 1.8 111
TRIPLE PEAK 8500 .8 .7 114* 2.2 1.7 129
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Basin wide percent of average 97* 105
LOWER GREEN RIVER
HAMS FORK 7840 .4 .2 200* 1.3 1.1 118
HEWINTA 9519 .3 .7 43* 1.7 1.9 89
HICKERSON PARK 9145 .0 .3 0* .9 1.3 69
HOLE-IN-ROCK 9150 .2 .3 67* 1.0 1.3 77
INDIAN CREEK 9425 1.1 1.0 110* 2.2 1.9 116
KELLEY R.S. 8180 .3 .6 50* 2.5 1.6 156
STEEL CREEK PARK 10200 .1 1.3 8* 2.0 1.8 111
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Basin wide percent of average 55* 106
UPPER BEAR RIVER
BUG LAKE 7950 .8 .9 89* 3.1 1.8 172
HAYDEN FORK 9212 .3 .6 50* 3.3 1.9 174
KELLEY R.S. 8180 .3 .6 50* 2.5 1.6 156
LILY LAKE 9156 .1 .8 13* 2.7 1.9 142
MONTE CRISTO 8960 .8 1.2 67* 3.0 2.2 136
SALT RIVER SUMMIT 7760 .5 .2 250* 2.1 1.5 140
TRIAL LAKE 9992 2.5 1.4 179* 4.0 2.1 190
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Basin wide percent of average 93* 159
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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.