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 25 , 2008
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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 .0 .3 0 1.8 1.5 120
COTTONWOOD CREEK 7670 .2 .6 33 1.6 2.3 70
GRAND TARGHEE 9260 1.7 -M * 3.3 -M *
GRANITE CREEK 6770 .1 .3 33 1.8 1.3 138
GRASSY LAKE 7265 .2 .9 22 2.1 2.5 84
GROS VENTRE SUMMIT 8750 1.8 1.0 180 2.1 1.4 150
GUNSIGHT PASS 9820 .6 -M * 1.4 -M *
LEWIS LAKE DIVIDE 7850 .1 .7 14 2.2 2.3 96
PHILLIPS BENCH 8200 .8 .9 89 1.8 1.7 106
SALT RIVER SUMMIT 7760 1.1 .2 550 1.2 1.5 80
SNAKE RIVER STATION 6920 .1 .3 33 1.4 1.7 82
SPRING CREEK DIVIDE 9000 .4 1.0 40 1.2 1.8 67
THUMB DIVIDE 7980 .0 .5 0 2.3 1.6 144
TOGWOTEE PASS 9580 2.3 1.9 121 2.9 2.1 138
TWO OCEAN PLATEAU 9240 3.3 2.3 143 1.8 2.3 78
WILLOW CREEK 8380 .2 1.2 17 2.3 2.9 79
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Basin wide percent of average 88 99
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 1.5 2.1 71 1.6 1.6 100
BLACK BEAR 8170 1.0 1.8 56 3.3 2.5 132
CANYON 7870 .3 .4 75 .8 1.4 57
FISHER CREEK 9100 1.5 1.9 79 2.4 2.5 96
MADISON PLATEAU 7750 .5 1.0 50 1.8 2.0 90
NORTHEAST ENTRANCE 7350 .2 .2 100 1.1 1.2 92
PARKER PEAK 9400 2.1 2.2 95 1.7 1.9 89
SYLVAN LAKE 8420 .1 1.4 7 1.8 2.0 90
THUMB DIVIDE 7980 .0 .5 0 2.3 1.6 144
TWO OCEAN PLATEAU 9240 3.3 2.3 143 1.8 2.3 78
WHISKEY CREEK 6800 .1 .4 25 1.3 1.7 76
WHITE MILL 8700 1.5 1.3 115 1.7 2.0 85
WOLVERINE 7650 .2 .3 67 1.3 1.5 87
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Basin wide percent of average 78 95
WIND RIVER
BURROUGHS CREEK 8750 1.9 .6 317 2.4 1.3 185
COLD SPRINGS 9630 1.6 .8 200 2.5 1.5 167
DEER PARK 9700 1.4 1.7 82 2.7 2.0 135
HOBBS PARK 10100 2.2 1.9 116 2.7 1.7 159
LITTLE WARM 9370 1.5 .8 188 2.1 1.4 150
SOUTH PASS 9040 1.7 1.2 142 3.4 1.6 212
ST. LAWRENCE ALT 8620 1.4 .7 200 2.4 1.4 171
TOGWOTEE PASS 9580 2.3 1.9 121 2.9 2.1 138
TOWNSEND CREEK 8700 2.0 .8 250 3.1 1.7 182
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Basin wide percent of average 154 165
BIGHORN BASIN
BALD MTN. 9380 2.4 2.2 109 2.8 1.9 147
BEAR TRAP MEADOW 8200 .7 .5 140 1.8 1.4 129
BLACKWATER 9780 1.8 2.5 72 2.0 2.1 95
BONE SPRINGS DIV 9350 2.2 2.0 110 2.5 2.0 125
EVENING STAR 9200 1.8 2.0 90 2.5 2.1 119
GRAVE SPRINGS 8550 1.0 .9 111 2.0 1.7 118
KIRWIN 9550 1.7 1.5 113 1.8 1.4 129
MARQUETTE 8760 1.4 1.5 93 2.3 1.9 121
MIDDLE POWDER 7760 .6 1.0 60 2.0 2.1 95
OWL CREEK 8975 2.0 .7 286 2.0 .9 222
POWDER RIVER PASS 9480 1.4 .9 156 2.2 1.5 147
SHELL CREEK 9580 2.4 2.2 109 2.8 1.6 175
SYLVAN LAKE 8420 .1 1.4 7 1.8 2.0 90
SYLVAN ROAD 7120 .3 .3 100 1.3 1.5 87
TIMBER CREEK 7950 1.3 .8 162 2.1 1.3 162
YOUNTS PEAK 8350 1.6 1.1 145 1.5 1.5 100
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Basin wide percent of average 106 124
SHOSHONE RIVER
BLACKWATER 9780 1.8 2.5 72 2.0 2.1 95
EVENING STAR 9200 1.8 2.0 90 2.5 2.1 119
KIRWIN 9550 1.7 1.5 113 1.8 1.4 129
MARQUETTE 8760 1.4 1.5 93 2.3 1.9 121
SYLVAN LAKE 8420 .1 1.4 7 1.8 2.0 90
SYLVAN ROAD 7120 .3 .3 100 1.3 1.5 87
YOUNTS PEAK 8350 1.6 1.1 145 1.5 1.5 100
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Basin wide percent of average 84 106
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .7 .5 140 1.8 1.4 129
BIG GOOSE 7990 .8 .6 133 2.1 1.8 117
BONE SPRINGS DIV 9350 2.2 2.0 110 2.5 2.0 125
BURGESS JUNCTION 7880 1.5 1.2 125 2.5 1.8 139
CLOUD PEAK RESERVOIR 9860 2.0 1.3 154 2.6 2.1 124
DOME LAKE 8880 1.4 1.4 100 2.2 2.0 110
GRAVE SPRINGS 8550 1.0 .9 111 2.0 1.7 118
HANSEN SAWMILL 8360 .9 .6 150 1.7 1.5 113
MIDDLE POWDER 7760 .6 1.0 60 2.0 2.1 95
POWDER RIVER PASS 9480 1.4 .9 156 2.2 1.5 147
SUCKER CREEK 8880 1.7 1.0 170 2.7 2.0 135
TIE CREEK 6870 .5 .6 83 3.4 2.1 162
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Basin wide percent of average 122 126
BELLE FOURCHE
BLIND PARK 6890 .2 .2 100 1.3 2.0 65
COLE CANYON 5910 .1 .6 17 2.6 1.5 173
NORTH RAPID CREEK 6130 -M .3 * 1.8 2.0 90
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Basin wide percent of average 38 104
UPPER N. PLATTE RIVER
COLUMBINE 9160 .3 .4 75 1.2 1.8 67
DIVIDE PEAK 8880 .6 1.3 46 2.4 2.1 114
ELK RIVER 8700 .0 .4 0 1.5 1.7 88
JOE WRIGHT 10120 .9 1.8 50 2.6 2.7 96
NORTH FRENCH CREEK 10130 1.2 2.4 50 1.9 2.5 76
OLD BATTLE 10000 1.1 2.2 50 2.4 2.7 89
SAGE CREEK BASIN 7850 .1 .8 12 1.0 1.2 83
SOUTH BRUSH CREEK 8440 .4 .4 100 1.2 2.1 57
TOWER 10500 1.0 2.3 43 2.2 2.9 76
WEBBER SPRINGS 9250 1.0 1.2 83 2.2 2.3 96
WILLOW CREEK PASS 9540 .8 .8 100 1.3 1.6 81
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Basin wide percent of average 53 84
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.0 1.6 62 1.6 1.8 89
CASPER MTN. 7900 .7 1.3 54 2.4 2.0 120
DEADMAN HILL 10220 2.3 1.7 135 1.6 2.0 80
DEER PARK 9700 1.4 1.7 82 2.7 2.0 135
LAPRELE CREEK 8375 .0 .7 0 .8 1.5 53
RENO HILL 8400 .9 1.3 69 1.8 2.0 90
ROACH 9700 1.1 .7 157 1.6 1.8 89
SAND LAKE 10050 2.3 2.4 96 2.1 2.3 91
SOUTH PASS 9040 1.7 1.2 142 3.4 1.6 212
WINDY PEAK 7900 .6 .3 200 .7 1.3 54
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Basin wide percent of average 93 102
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .1 .3 33 .8 1.5 53
DIVIDE PEAK 8880 .6 1.3 46 2.4 2.1 114
OLD BATTLE 10000 1.1 2.2 50 2.4 2.7 89
SANDSTONE RS 8150 .0 .3 0 .9 1.8 50
WHISKEY PARK 8950 .6 1.2 50 1.8 2.3 78
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Basin wide percent of average 45 80
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.0 .9 111 1.4 1.4 100
BLIND BULL SUM 8650 1.4 1.1 127 2.0 1.6 125
EAST RIM DIVIDE 7930 .0 .3 0 1.9 1.0 190
ELKHART PARK G.S. 9400 .9 .6 150 1.8 1.5 120
GROS VENTRE SUMMIT 8750 1.8 1.0 180 2.1 1.4 150
GUNSIGHT PASS 9820 .6 -M * 1.4 -M *
KENDALL R.S. 7740 .1 .4 25 1.5 1.2 125
LOOMIS PARK 8240 .7 .6 117 2.2 1.4 157
NEW FORK LAKE 8340 .4 .3 133 1.5 1.2 125
SNIDER BASIN 8060 .5 .5 100 1.2 1.2 100
SPRING CREEK DIVIDE 9000 .4 1.0 40 1.2 1.8 67
TRIPLE PEAK 8500 1.3 .7 186 2.1 1.7 124
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Basin wide percent of average 115 123
LOWER GREEN RIVER
HAMS FORK 7840 .0 .2 0 1.3 1.1 118
HEWINTA 9519 .0 .7 0 1.3 1.9 68
HICKERSON PARK 9145 .0 .3 0 1.3 1.3 100
HOLE-IN-ROCK 9150 .0 .3 0 1.9 1.3 146
INDIAN CREEK 9425 1.1 1.0 110 1.7 1.9 89
KELLEY R.S. 8180 .1 .6 17 1.4 1.6 87
STEEL CREEK PARK 10200 -M 1.3 * 1.7 1.8 94
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Basin wide percent of average 39 97
UPPER BEAR RIVER
BUG LAKE 7950 .0 .9 0 1.4 1.8 78
HAYDEN FORK 9212 .0 .6 0 1.3 1.9 68
KELLEY R.S. 8180 .1 .6 17 1.4 1.6 87
LILY LAKE 9156 .1 .8 12 1.7 1.9 89
MONTE CRISTO 8960 .1 1.2 8 1.7 2.2 77
SALT RIVER SUMMIT 7760 1.1 .2 550 1.2 1.5 80
TRIAL LAKE 9992 .5 1.4 36 1.3 2.1 62
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Basin wide percent of average 33 77
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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 1961-90.
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.