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 18 , 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 2.7 2.4 113 5.4 4.1 132
COTTONWOOD CREEK 7670 5.9 2.7 219 9.4 5.7 165
GRAND TARGHEE 9260 9.6 -M * 8.6 -M *
GRANITE CREEK 6770 2.2 1.9 116 4.8 3.6 133
GRASSY LAKE 7265 3.9 4.5 87 7.2 6.6 109
GROS VENTRE SUMMIT 8750 3.0 2.7 111 3.2 3.2 100
GUNSIGHT PASS 9820 3.5 -M * 4.1 -M *
LEWIS LAKE DIVIDE 7850 5.0 4.5 111 7.1 6.6 108
PHILLIPS BENCH 8200 5.7 4.0 143 7.0 4.9 143
SALT RIVER SUMMIT 7760 1.7 1.4 121* 4.8 3.5 137
SNAKE RIVER STATION 6920 1.6 2.2 73 5.5 4.4 125
SPRING CREEK DIVIDE 9000 5.5 4.2 131 7.0 5.1 137
THUMB DIVIDE 7980 2.3 2.4 96 3.4 3.8 89
TOGWOTEE PASS 9580 6.4 5.0 128 7.3 5.2 140
TWO OCEAN PLATEAU 9240 6.4 5.9 108 5.4 5.8 93
WILLOW CREEK 8380 5.5 4.9 112 10.1 6.7 151
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Basin wide percent of average 119 127
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 3.9 4.9 80 4.3 4.0 108
BLACK BEAR 8170 5.2 6.1 85 7.4 7.3 101
CANYON 7870 1.4 1.9 74 3.0 3.5 86
FISHER CREEK 9100 4.8 5.8 83 6.1 6.7 91
MADISON PLATEAU 7750 2.5 3.6 69 4.4 4.9 90
NORTHEAST ENTRANCE 7350 1.0 1.3 77 3.4 2.9 117
PARKER PEAK 9400 4.3 4.7 91 5.3 4.0 133
SYLVAN LAKE 8420 3.2 4.2 76 5.4 4.9 110
THUMB DIVIDE 7980 2.3 2.4 96 3.4 3.8 89
TWO OCEAN PLATEAU 9240 6.4 5.9 108 5.4 5.8 93
WHISKEY CREEK 6800 .7 2.2 32 3.5 4.2 83
WHITE MILL 8700 3.6 4.2 86 4.9 5.3 92
WOLVERINE 7650 1.1 1.6 69 2.7 3.2 84
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Basin wide percent of average 83 98
WIND RIVER
BURROUGHS CREEK 8750 2.5 2.5 100 2.9 3.4 85
CASTLE CREEK 8400 1.0 -M * 1.7 -M *
COLD SPRINGS 9630 1.0 2.3 43 1.4 3.3 42
DEER PARK 9700 2.9 3.7 78 3.6 5.2 69
HOBBS PARK 10100 2.0 4.0 50 2.2 3.6 61
LITTLE WARM 9370 2.2 2.3 96 2.1 3.4 62
SOUTH PASS 9040 1.7 3.4 50 2.3 4.2 55
ST. LAWRENCE ALT 8620 .6 1.9 32 1.2 2.8 43
TOGWOTEE PASS 9580 6.4 5.0 128 7.3 5.2 140
TOWNSEND CREEK 8700 .8 2.1 38 2.5 3.5 71
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Basin wide percent of average 74 74
BIGHORN BASIN
BALD MTN. 9380 5.1 4.6 111 4.8 4.1 117
BEAR TRAP MEADOW 8200 .9 1.2 75 2.1 2.8 75
BLACKWATER 9780 4.6 5.4 85 4.5 5.0 90
BONE SPRINGS DIV 9350 3.5 4.3 81 2.9 3.9 74
EVENING STAR 9200 4.6 5.5 84 5.8 5.7 102
GRAVE SPRINGS 8550 2.0 2.1 95 2.6 3.0 87
KIRWIN 9550 2.2 3.1 71 2.6 3.2 81
MARQUETTE 8760 .5 2.9 17 1.3 3.4 38
MIDDLE POWDER 7760 2.9 2.5 116 2.2 4.1 54
OWL CREEK 8975 .7 1.5 47 1.1 1.8 61
POWDER RIVER PASS 9480 3.0 2.4 125 3.8 3.2 119
SHELL CREEK 9580 3.6 4.1 88 3.1 3.5 89
SYLVAN LAKE 8420 3.2 4.2 76 5.4 4.9 110
SYLVAN ROAD 7120 1.2 1.9 63 3.4 4.5 76
TIMBER CREEK 7950 .6 2.0 30 1.0 2.6 38
YOUNTS PEAK 8350 3.4 3.0 113 3.2 3.7 86
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Basin wide percent of average 83 84
SHOSHONE RIVER
BLACKWATER 9780 4.6 5.4 85 4.5 5.0 90
EVENING STAR 9200 4.6 5.5 84 5.8 5.7 102
KIRWIN 9550 2.2 3.1 71 2.6 3.2 81
MARQUETTE 8760 .5 2.9 17 1.3 3.4 38
SYLVAN LAKE 8420 3.2 4.2 76 5.4 4.9 110
SYLVAN ROAD 7120 1.2 1.9 63 3.4 4.5 76
YOUNTS PEAK 8350 3.4 3.0 113 3.2 3.7 86
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Basin wide percent of average 76 86
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 1.2 75 2.1 2.8 75
BIG GOOSE 7990 .8 1.6 50 2.5 2.7 93
BONE SPRINGS DIV 9350 3.5 4.3 81 2.9 3.9 74
BURGESS JUNCTION 7880 1.3 2.7 48 2.9 3.4 85
CLOUD PEAK RESERVOIR 9860 2.6 2.8 93 3.9 4.1 95
DOME LAKE 8880 1.0 3.3 30 2.8 4.0 70
GRAVE SPRINGS 8550 2.0 2.1 95 2.6 3.0 87
HANSEN SAWMILL 8360 1.0 1.4 71 1.5 2.7 56
LITTLE GOOSE 8870 1.0 -M * 4.1 -M *
MIDDLE POWDER 7760 2.9 2.5 116 2.2 4.1 54
POWDER RIVER PASS 9480 3.0 2.4 125 3.8 3.2 119
SOLDIER PARK 8720 .9 -M * 2.1 -M *
SUCKER CREEK 8880 2.3 2.5 92 2.8 3.7 76
TIE CREEK 6870 .8 1.1 73 2.3 3.2 72
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Basin wide percent of average 79 79
BELLE FOURCHE
BLIND PARK 6890 .9 1.5 60 5.8 3.8 153
COLE CANYON 5910 1.3 1.6 81 3.0 2.6 115
NORTH RAPID CREEK 6130 1.0 1.1 91 4.6 3.4 135
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Basin wide percent of average 76 137
UPPER N. PLATTE RIVER
COLUMBINE 9160 6.1 3.1 197 9.3 4.5 207
DIVIDE PEAK 8880 2.6 3.5 74 5.7 4.6 124
ELK RIVER 8700 3.0 1.8 167* 6.4 3.8 168
JOE WRIGHT 10120 7.7 4.8 160 11.7 5.9 198
NORTH FRENCH CREEK 10130 9.2 5.7 161 10.1 5.8 174
OLD BATTLE 10000 7.6 6.3 121 9.2 6.6 139
SAGE CREEK BASIN 7850 1.2 2.0 60 4.4 2.7 163
SOUTH BRUSH CREEK 8440 3.4 1.9 179 6.2 4.2 148
TOWER 10500 13.9 8.6 162 15.0 7.6 197
WEBBER SPRINGS 9250 4.3 4.5 96 8.0 5.6 143
WILLOW CREEK PASS 9540 4.2 2.6 162 5.6 3.4 165
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Basin wide percent of average 141 167
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 5.1 4.2 121 7.0 4.6 152
CASPER MTN. 7900 2.1 3.4 62 4.9 4.2 117
DEADMAN HILL 10220 4.0 3.9 103 7.1 4.1 173
DEER PARK 9700 2.9 3.7 78 3.6 5.2 69
LAPRELE CREEK 8375 1.5 2.2 68 3.2 3.3 97
RENO HILL 8400 2.8 3.1 90 4.7 4.1 115
ROACH 9700 4.1 2.9 141 6.3 4.0 158
SAND LAKE 10050 8.5 6.6 129 8.4 5.3 158
SOUTH PASS 9040 1.7 3.4 50 2.3 4.2 55
WINDY PEAK 7900 1.5 1.5 100 3.7 2.9 128
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Basin wide percent of average 98 122
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 1.2 1.3 92 4.2 3.3 127
DIVIDE PEAK 8880 2.6 3.5 74 5.7 4.6 124
OLD BATTLE 10000 7.6 6.3 121 9.2 6.6 139
SANDSTONE RS 8150 .6 1.4 43* 5.9 4.2 140
WHISKEY PARK 8950 4.8 4.1 117 9.1 5.5 165
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Basin wide percent of average 101 141
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.2 2.7 81 3.3 3.2 103
BLIND BULL SUM 8650 5.4 4.4 123 3.7 4.4 84
EAST RIM DIVIDE 7930 1.5 1.9 79 2.3 2.6 88
ELKHART PARK G.S. 9400 1.8 2.2 82 2.5 3.3 76
GROS VENTRE SUMMIT 8750 3.0 2.7 111 3.2 3.2 100
GUNSIGHT PASS 9820 3.5 -M * 4.1 -M *
KENDALL R.S. 7740 1.2 2.0 60 3.2 3.0 107
LOOMIS PARK 8240 2.7 2.7 100 3.9 3.5 111
NEW FORK LAKE 8340 2.0 1.7 118 2.4 2.9 83
POCKET CREEK 9360 2.3 -M * 3.2 -M *
SNIDER BASIN 8060 3.2 2.2 145 4.5 3.2 141
SPRING CREEK DIVIDE 9000 5.5 4.2 131 7.0 5.1 137
TRIPLE PEAK 8500 5.4 3.8 142 7.3 4.5 162
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Basin wide percent of average 111 111
LOWER GREEN RIVER
HAMS FORK 7840 1.5 1.4 107 3.3 2.6 127
HEWINTA 9519 .5 1.5 33 4.4 3.8 116
HICKERSON PARK 9145 .0 1.0 0 2.0 2.7 74
HOLE-IN-ROCK 9150 .8 1.0 80 2.7 2.5 108
INDIAN CREEK 9425 5.3 4.2 126 6.0 4.9 122
KELLEY R.S. 8180 3.5 2.6 135 5.7 4.1 139
STEEL CREEK PARK 10200 2.5 2.9 86 5.4 4.0 135
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Basin wide percent of average 97 120
UPPER BEAR RIVER
BUG LAKE 7950 1.8 2.7 67 5.5 4.2 131
HAYDEN FORK 9212 1.5 2.0 75 7.1 4.5 158
KELLEY R.S. 8180 3.5 2.6 135 5.7 4.1 139
LILY LAKE 9156 2.5 2.0 125 5.8 4.3 135
MONTE CRISTO 8960 3.6 3.4 106 6.2 5.1 122
SALT RIVER SUMMIT 7760 1.7 1.4 121* 4.8 3.5 137
TRIAL LAKE 9992 5.8 3.9 149 7.9 4.9 161
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Basin wide percent of average 113 141
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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.