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 THURSDAY: NOVEMBER 13 , 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 1.0 1.8 56 3.2 3.4 94
COTTONWOOD CREEK 7670 3.3 2.1 157 5.7 4.9 116
GRAND TARGHEE 9260 6.4 -M * 8.5 -M *
GRANITE CREEK 6770 .8 1.4 57 3.9 3.0 130
GRASSY LAKE 7265 3.9 3.4 115 7.4 5.6 132
GROS VENTRE SUMMIT 8750 2.5 2.3 109 3.7 2.8 132
GUNSIGHT PASS 9820 2.0 -M * 3.3 -M *
LEWIS LAKE DIVIDE 7850 4.1 3.4 121 6.9 5.5 125
PHILLIPS BENCH 8200 2.4 3.1 77 5.0 4.1 122
SALT RIVER SUMMIT 7760 1.2 1.0 120 3.0 3.0 100
SNAKE RIVER STATION 6920 1.0 1.6 62 3.7 3.7 100
SPRING CREEK DIVIDE 9000 2.1 3.3 64 3.8 4.3 88
THUMB DIVIDE 7980 2.1 1.9 111 4.9 3.3 148
TOGWOTEE PASS 9580 5.0 4.3 116 5.8 4.5 129
TWO OCEAN PLATEAU 9240 6.3 5.1 124 4.9 4.9 100
WILLOW CREEK 8380 3.4 3.9 87 7.3 5.8 126
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Basin wide percent of average 101 118
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.2 4.4 73 2.9 3.4 85
BLACK BEAR 8170 5.8 5.1 114 8.9 6.1 146
CANYON 7870 1.7 1.5 113 2.4 3.0 80
FISHER CREEK 9100 4.3 4.9 88 5.6 5.6 100
MADISON PLATEAU 7750 2.5 3.0 83 4.9 4.1 120
NORTHEAST ENTRANCE 7350 1.5 1.0 150 2.8 2.4 117
PARKER PEAK 9400 4.4 4.1 107 3.5 3.5 100
SYLVAN LAKE 8420 2.8 3.6 78 4.8 4.2 114
THUMB DIVIDE 7980 2.1 1.9 111 4.9 3.3 148
TWO OCEAN PLATEAU 9240 6.3 5.1 124 4.9 4.9 100
WHISKEY CREEK 6800 1.6 1.7 94 4.1 3.6 114
WHITE MILL 8700 3.5 3.6 97 4.5 4.4 102
WOLVERINE 7650 .5 1.3 38 2.1 2.8 75
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Basin wide percent of average 98 110
WIND RIVER
BURROUGHS CREEK 8750 2.3 2.0 115 3.0 2.8 107
COLD SPRINGS 9630 1.8 2.0 90 3.1 2.9 107
DEER PARK 9700 3.0 3.6 83 4.4 4.4 100
HOBBS PARK 10100 3.0 3.4 88 3.4 3.2 106
LITTLE WARM 9370 2.1 2.0 105 3.1 2.9 107
SOUTH PASS 9040 2.6 2.8 93 4.6 3.6 128
ST. LAWRENCE ALT 8620 .8 1.5 53 2.7 2.5 108
TOGWOTEE PASS 9580 5.0 4.3 116 5.8 4.5 129
TOWNSEND CREEK 8700 1.8 1.8 100 3.5 3.2 109
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Basin wide percent of average 96 112
BIGHORN BASIN
BALD MTN. 9380 4.9 4.2 117 4.7 3.6 131
BEAR TRAP MEADOW 8200 .6 1.0 60 2.1 2.5 84
BLACKWATER 9780 3.6 4.8 75 3.7 4.3 86
BONE SPRINGS DIV 9350 3.3 3.9 85 3.4 3.5 97
EVENING STAR 9200 3.7 4.8 77 5.2 4.8 108
GRAVE SPRINGS 8550 .7 1.9 37 2.5 2.7 93
KIRWIN 9550 2.6 2.9 90 2.8 2.8 100
MARQUETTE 8760 1.5 2.6 58 2.6 3.2 81
MIDDLE POWDER 7760 .0 2.3 0 2.3 3.7 62
OWL CREEK 8975 2.4 1.3 185 2.5 1.7 147
POWDER RIVER PASS 9480 2.0 2.2 91 2.9 2.8 104
SHELL CREEK 9580 3.8 3.8 100 4.0 3.0 133
SYLVAN LAKE 8420 2.8 3.6 78 4.8 4.2 114
SYLVAN ROAD 7120 1.4 1.5 93 2.9 3.7 78
TIMBER CREEK 7950 1.6 1.6 100 3.4 2.3 148
YOUNTS PEAK 8350 2.8 2.6 108 3.1 3.1 100
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Basin wide percent of average 84 102
SHOSHONE RIVER
BLACKWATER 9780 3.6 4.8 75 3.7 4.3 86
EVENING STAR 9200 3.7 4.8 77 5.2 4.8 108
KIRWIN 9550 2.6 2.9 90 2.8 2.8 100
MARQUETTE 8760 1.5 2.6 58 2.6 3.2 81
SYLVAN LAKE 8420 2.8 3.6 78 4.8 4.2 114
SYLVAN ROAD 7120 1.4 1.5 93 2.9 3.7 78
YOUNTS PEAK 8350 2.8 2.6 108 3.1 3.1 100
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Basin wide percent of average 81 96
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .6 1.0 60 2.1 2.5 84
BIG GOOSE 7990 .1 1.4 7 2.4 2.5 96
BONE SPRINGS DIV 9350 3.3 3.9 85 3.4 3.5 97
BURGESS JUNCTION 7880 1.7 2.4 71 3.1 3.1 100
CLOUD PEAK RESERVOIR 9860 2.8 2.5 112 4.1 3.7 111
DOME LAKE 8880 2.2 3.1 71 3.1 3.5 89
GRAVE SPRINGS 8550 .7 1.9 37 2.5 2.7 93
HANSEN SAWMILL 8360 .0 1.3 0 2.6 2.5 104
MIDDLE POWDER 7760 .0 2.3 0 2.3 3.7 62
POWDER RIVER PASS 9480 2.0 2.2 91 2.9 2.8 104
SUCKER CREEK 8880 2.2 2.1 105 3.9 3.3 118
TIE CREEK 6870 .0 1.2 0 4.0 3.1 129
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Basin wide percent of average 62 99
BELLE FOURCHE
BLIND PARK 6890 2.8 1.4 200 4.7 3.5 134
COLE CANYON 5910 2.3 1.4 164 4.3 2.4 179
NORTH RAPID CREEK 6130 3.4 .9 378 4.7 3.1 152
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Basin wide percent of average 230 152
UPPER N. PLATTE RIVER
COLUMBINE 9160 1.9 2.4 79 3.2 3.8 84
DIVIDE PEAK 8880 1.6 3.0 53 4.0 4.1 98
ELK RIVER 8700 1.4 1.4 100 3.2 3.3 97
JOE WRIGHT 10120 3.8 4.2 90 5.4 5.2 104
NORTH FRENCH CREEK 10130 4.6 5.0 92 4.8 5.1 94
OLD BATTLE 10000 3.8 5.3 72 5.6 5.7 98
SAGE CREEK BASIN 7850 .6 1.7 35 2.2 2.3 96
SOUTH BRUSH CREEK 8440 1.7 1.5 113 3.2 3.8 84
TOWER 10500 5.3 7.1 75 5.9 6.5 91
WEBBER SPRINGS 9250 2.0 3.7 54 4.1 4.9 84
WILLOW CREEK PASS 9540 1.5 2.2 68 2.3 3.0 77
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Basin wide percent of average 75 92
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.0 3.6 56 2.2 3.9 56
CASPER MTN. 7900 .8 2.9 28 3.3 3.7 89
DEADMAN HILL 10220 2.7 3.4 79 2.5 3.6 69
DEER PARK 9700 3.0 3.6 83 4.4 4.4 100
LAPRELE CREEK 8375 .4 1.9 21 1.3 3.0 43
RENO HILL 8400 .8 2.7 30 2.3 3.7 62
ROACH 9700 1.7 2.4 71 2.7 3.5 77
SAND LAKE 10050 4.3 5.6 77 3.9 4.7 83
SOUTH PASS 9040 2.6 2.8 93 4.6 3.6 128
WINDY PEAK 7900 .7 1.2 58 .9 2.6 35
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Basin wide percent of average 63 77
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.1 1.1 100 3.1 2.9 107
DIVIDE PEAK 8880 1.6 3.0 53 4.0 4.1 98
OLD BATTLE 10000 3.8 5.3 72 5.6 5.7 98
SANDSTONE RS 8150 .7 1.1 64 2.9 3.6 81
WHISKEY PARK 8950 2.4 3.4 71 4.6 4.7 98
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Basin wide percent of average 69 96
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.6 2.3 70 2.4 2.8 86
BLIND BULL SUM 8650 2.9 3.5 83 3.8 3.7 103
EAST RIM DIVIDE 7930 .4 1.5 27 2.9 2.2 132
ELKHART PARK G.S. 9400 1.6 1.8 89 3.4 2.9 117
GROS VENTRE SUMMIT 8750 2.5 2.3 109 3.7 2.8 132
GUNSIGHT PASS 9820 2.0 -M * 3.3 -M *
KENDALL R.S. 7740 .7 1.5 47 2.7 2.5 108
LOOMIS PARK 8240 1.1 2.1 52 3.4 3.0 113
NEW FORK LAKE 8340 1.0 1.3 77 2.5 2.5 100
SNIDER BASIN 8060 .8 1.7 47 2.2 2.7 81
SPRING CREEK DIVIDE 9000 2.1 3.3 64 3.8 4.3 88
TRIPLE PEAK 8500 1.9 2.9 66 3.9 3.8 103
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Basin wide percent of average 69 105
LOWER GREEN RIVER
HAMS FORK 7840 .4 1.1 36 2.3 2.2 105
HEWINTA 9519 .6 1.3 46 2.5 3.4 74
HICKERSON PARK 9145 .0 .9 0 2.0 2.4 83
HOLE-IN-ROCK 9150 .7 .9 78 2.4 2.3 104
INDIAN CREEK 9425 2.4 3.3 73 3.9 4.2 93
KELLEY R.S. 8180 -M 2.1 * 3.2 3.5 91
STEEL CREEK PARK 10200 1.0 2.5 40 3.2 3.5 91
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Basin wide percent of average 51 91
UPPER BEAR RIVER
BUG LAKE 7950 1.3 2.2 59 3.1 3.6 86
HAYDEN FORK 9212 1.4 1.6 87 3.9 3.8 103
KELLEY R.S. 8180 -M 2.1 * 3.2 3.5 91
LILY LAKE 9156 1.5 1.7 88 3.4 3.7 92
MONTE CRISTO 8960 2.2 2.8 79 4.6 4.4 105
SALT RIVER SUMMIT 7760 1.2 1.0 120 3.0 3.0 100
TRIAL LAKE 9992 3.0 3.3 91 4.1 4.3 95
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Basin wide percent of average 84 96
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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.
