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: NOVEMBER 10 , 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 .7 1.4 50 2.9 3.0 97
COTTONWOOD CREEK 7670 2.5 1.8 139 4.9 4.4 111
GRAND TARGHEE 9260 3.8 -M * 6.1 -M *
GRANITE CREEK 6770 .9 1.1 82 3.7 2.7 137
GRASSY LAKE 7265 2.3 2.9 79 5.4 5.0 108
GROS VENTRE SUMMIT 8750 2.3 2.1 110 3.6 2.5 144
GUNSIGHT PASS 9820 1.6 -M * 2.8 -M *
LEWIS LAKE DIVIDE 7850 2.1 2.8 75 5.1 4.8 106
PHILLIPS BENCH 8200 1.8 2.7 67 4.5 3.6 125
SALT RIVER SUMMIT 7760 2.1 .8 262 3.5 2.8 125
SNAKE RIVER STATION 6920 .6 1.3 46 3.0 3.3 91
SPRING CREEK DIVIDE 9000 1.6 2.8 57 3.4 3.9 87
THUMB DIVIDE 7980 1.6 1.6 100 4.4 2.9 152
TOGWOTEE PASS 9580 4.1 3.8 108 4.9 4.0 123
TWO OCEAN PLATEAU 9240 5.5 4.5 122 3.8 4.4 86
WILLOW CREEK 8380 2.5 3.3 76 6.2 5.2 119
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Basin wide percent of average 93 113
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.1 4.0 52 2.1 3.1 68
BLACK BEAR 8170 4.4 4.5 98 7.6 5.4 141
CANYON 7870 1.3 1.3 100 2.2 2.7 81
FISHER CREEK 9100 2.9 4.4 66 4.3 5.0 86
MADISON PLATEAU 7750 1.8 2.7 67 4.3 3.7 116
NORTHEAST ENTRANCE 7350 .8 .8 100 2.1 2.2 95
PARKER PEAK 9400 3.5 3.8 92 2.9 3.2 91
SYLVAN LAKE 8420 1.9 3.2 59 4.0 3.7 108
THUMB DIVIDE 7980 1.6 1.6 100 4.4 2.9 152
TWO OCEAN PLATEAU 9240 5.5 4.5 122 3.8 4.4 86
WHISKEY CREEK 6800 1.2 1.5 80 3.6 3.2 112
WHITE MILL 8700 2.3 3.3 70 3.3 4.0 82
WOLVERINE 7650 .2 1.1 18 1.6 2.5 64
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Basin wide percent of average 80 100
WIND RIVER
BURROUGHS CREEK 8750 1.8 1.8 100 2.7 2.5 108
COLD SPRINGS 9630 1.4 1.7 82 2.7 2.7 100
DEER PARK 9700 2.3 3.6 64 3.7 3.9 95
HOBBS PARK 10100 2.5 3.1 81 2.9 3.0 97
LITTLE WARM 9370 1.8 1.7 106 2.8 2.6 108
SOUTH PASS 9040 2.0 2.6 77 4.1 3.2 128
ST. LAWRENCE ALT 8620 .6 1.4 43 2.5 2.4 104
TOGWOTEE PASS 9580 4.1 3.8 108 4.9 4.0 123
TOWNSEND CREEK 8700 1.4 1.6 87 3.3 2.9 114
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Basin wide percent of average 84 109
BIGHORN BASIN
BALD MTN. 9380 4.2 3.9 108 4.2 3.3 127
BEAR TRAP MEADOW 8200 .4 1.0 40 2.0 2.3 87
BLACKWATER 9780 2.9 4.4 66 2.9 3.8 76
BONE SPRINGS DIV 9350 3.1 3.7 84 3.3 3.3 100
EVENING STAR 9200 2.4 4.4 55 3.5 4.2 83
GRAVE SPRINGS 8550 .5 1.7 29 2.3 2.5 92
KIRWIN 9550 1.7 2.7 63 2.0 2.6 77
MARQUETTE 8760 1.0 2.5 40 2.3 3.0 77
MIDDLE POWDER 7760 .1 2.1 5 2.2 3.5 63
OWL CREEK 8975 1.9 1.2 158 2.1 1.6 131
POWDER RIVER PASS 9480 1.6 2.0 80 2.5 2.6 96
SHELL CREEK 9580 3.4 3.6 94 3.8 2.8 136
SYLVAN LAKE 8420 1.9 3.2 59 4.0 3.7 108
SYLVAN ROAD 7120 1.1 1.3 85 2.5 3.2 78
TIMBER CREEK 7950 .3 1.6 19 2.2 2.2 100
YOUNTS PEAK 8350 2.0 2.4 83 2.5 2.8 89
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Basin wide percent of average 68 93
SHOSHONE RIVER
BLACKWATER 9780 2.9 4.4 66 2.9 3.8 76
EVENING STAR 9200 2.4 4.4 55 3.5 4.2 83
KIRWIN 9550 1.7 2.7 63 2.0 2.6 77
MARQUETTE 8760 1.0 2.5 40 2.3 3.0 77
SYLVAN LAKE 8420 1.9 3.2 59 4.0 3.7 108
SYLVAN ROAD 7120 1.1 1.3 85 2.5 3.2 78
YOUNTS PEAK 8350 2.0 2.4 83 2.5 2.8 89
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Basin wide percent of average 62 85
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .4 1.0 40 2.0 2.3 87
BIG GOOSE 7990 .4 1.2 33 2.3 2.5 92
BONE SPRINGS DIV 9350 3.1 3.7 84 3.3 3.3 100
BURGESS JUNCTION 7880 1.6 2.4 67 2.9 2.9 100
CLOUD PEAK RESERVOIR 9860 2.6 2.4 108 3.8 3.4 112
DOME LAKE 8880 1.7 2.9 59 2.7 3.3 82
GRAVE SPRINGS 8550 .5 1.7 29 2.3 2.5 92
HANSEN SAWMILL 8360 .0 1.3 0 2.4 2.4 100
MIDDLE POWDER 7760 .1 2.1 5 2.2 3.5 63
POWDER RIVER PASS 9480 1.6 2.0 80 2.5 2.6 96
SUCKER CREEK 8880 2.0 2.0 100 3.6 3.1 116
TIE CREEK 6870 .0 1.2 0 3.7 3.0 123
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Basin wide percent of average 59 97
BELLE FOURCHE
BLIND PARK 6890 2.7 1.4 193 4.5 3.3 136
COLE CANYON 5910 2.7 1.3 208 4.3 2.3 187
NORTH RAPID CREEK 6130 3.4 .8 425 4.4 3.0 147
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Basin wide percent of average 251 153
UPPER N. PLATTE RIVER
COLUMBINE 9160 1.3 2.0 65 2.5 3.4 74
DIVIDE PEAK 8880 1.0 2.7 37 3.5 3.7 95
ELK RIVER 8700 .7 1.2 58 2.6 3.0 87
JOE WRIGHT 10120 3.3 3.8 87 4.3 4.7 91
NORTH FRENCH CREEK 10130 3.3 4.5 73 3.7 4.7 79
OLD BATTLE 10000 3.4 4.7 72 5.0 5.1 98
SAGE CREEK BASIN 7850 .3 1.6 19 1.8 2.2 82
SOUTH BRUSH CREEK 8440 .7 1.3 54 2.1 3.5 60
TOWER 10500 3.2 6.2 52 4.4 5.8 76
WEBBER SPRINGS 9250 1.8 3.2 56 3.8 4.4 86
WILLOW CREEK PASS 9540 1.4 1.9 74 2.0 2.8 71
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Basin wide percent of average 62 82
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 1.4 3.2 44 2.1 3.6 58
CASPER MTN. 7900 .1 2.6 4 2.7 3.5 77
DEADMAN HILL 10220 2.4 3.1 77 2.2 3.3 67
DEER PARK 9700 2.3 3.6 64 3.7 3.9 95
LAPRELE CREEK 8375 .1 1.7 6 1.1 2.7 41
RENO HILL 8400 .3 2.5 12 2.0 3.4 59
ROACH 9700 1.4 2.1 67 2.3 3.2 72
SAND LAKE 10050 3.4 5.0 68 3.2 4.3 74
SOUTH PASS 9040 2.0 2.6 77 4.1 3.2 128
WINDY PEAK 7900 .6 1.1 55 .8 2.3 35
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Basin wide percent of average 51 72
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .9 22 2.0 2.7 74
DIVIDE PEAK 8880 1.0 2.7 37 3.5 3.7 95
OLD BATTLE 10000 3.4 4.7 72 5.0 5.1 98
SANDSTONE RS 8150 .2 1.0 20 2.0 3.3 61
WHISKEY PARK 8950 1.5 2.9 52 3.6 4.2 86
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Basin wide percent of average 52 85
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.4 2.0 70 2.2 2.6 85
BLIND BULL SUM 8650 2.4 3.0 80 3.5 3.3 106
EAST RIM DIVIDE 7930 .4 1.3 31 2.8 2.0 140
ELKHART PARK G.S. 9400 1.4 1.5 93 3.2 2.7 119
GROS VENTRE SUMMIT 8750 2.3 2.1 110 3.6 2.5 144
GUNSIGHT PASS 9820 1.6 -M * 2.8 -M *
KENDALL R.S. 7740 .5 1.3 38 2.5 2.3 109
LOOMIS PARK 8240 .9 1.8 50 3.3 2.7 122
NEW FORK LAKE 8340 .8 1.1 73 2.4 2.3 104
SNIDER BASIN 8060 .5 1.5 33 1.9 2.4 79
SPRING CREEK DIVIDE 9000 1.6 2.8 57 3.4 3.9 87
TRIPLE PEAK 8500 1.8 2.5 72 3.6 3.4 106
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Basin wide percent of average 67 108
LOWER GREEN RIVER
HAMS FORK 7840 .4 .9 44 2.1 2.0 105
HEWINTA 9519 .0 1.2 0 2.1 3.2 66
HICKERSON PARK 9145 .0 .8 0 1.7 2.3 74
HOLE-IN-ROCK 9150 .6 .8 75 2.2 2.1 105
INDIAN CREEK 9425 1.9 2.8 68 3.4 3.8 89
KELLEY R.S. 8180 1.4 1.8 78 2.9 3.1 94
STEEL CREEK PARK 10200 .4 2.3 17 2.6 3.3 79
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Basin wide percent of average 44 86
UPPER BEAR RIVER
BUG LAKE 7950 .9 2.0 45 2.5 3.3 76
HAYDEN FORK 9212 .9 1.4 64 3.2 3.5 91
KELLEY R.S. 8180 1.4 1.8 78 2.9 3.1 94
LILY LAKE 9156 .6 1.5 40 2.6 3.4 76
MONTE CRISTO 8960 1.5 2.5 60 3.7 4.0 92
SALT RIVER SUMMIT 7760 2.1 .8 262 3.5 2.8 125
TRIAL LAKE 9992 2.5 2.9 86 3.6 3.9 92
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Basin wide percent of average 77 92
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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.
