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 SUNDAY: NOVEMBER 18 , 2007
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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 1.8 2.2 82 7.5 4.0 188
COTTONWOOD CREEK 7670 2.7 2.6 104 6.1 5.5 111
GRANITE CREEK 6770 1.4 1.8 78 6.3 3.5 180
GRASSY LAKE 7265 4.1 4.3 95 10.7 6.4 167
GROS VENTRE SUMMIT 8750 3.7 2.6 142 5.3 3.1 171
LEWIS LAKE DIVIDE 7850 5.4 4.3 126 10.4 6.3 165
PHILLIPS BENCH 8200 4.0 3.8 105 8.2 4.8 171
SALT RIVER SUMMIT 7760 .3 1.3 23 2.9 3.4 85
SNAKE RIVER STATION 6920 1.3 2.1 62 7.7 4.2 183
SPRING CREEK DIVIDE 9000 2.9 4.0 72 4.4 4.9 90
THUMB DIVIDE 7980 1.9 2.3 83 5.9 3.7 159
TOGWOTEE PASS 9580 7.0 4.9 143 8.1 5.1 159
TWO OCEAN PLATEAU 9240 9.3 5.8 160 9.2 5.6 164
WILLOW CREEK 8380 3.2 4.7 68 8.5 6.5 131
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Basin wide percent of average 105 151
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 7.0 4.8 146 6.7 3.9 172
BLACK BEAR 8170 6.4 5.8 110 9.2 7.0 131
CANYON 7870 2.4 1.8 133 5.3 3.4 156
FISHER CREEK 9100 9.0 5.5 164 9.1 6.5 140
MADISON PLATEAU 7750 3.0 3.5 86 6.6 4.7 140
NORTHEAST ENTRANCE 7350 1.0 1.2 83 4.4 2.8 157
PARKER PEAK 9400 6.4 4.6 139 7.4 3.9 190
SYLVAN LAKE 8420 3.7 4.0 92 7.8 4.8 162
THUMB DIVIDE 7980 1.9 2.3 83 5.9 3.7 159
TWO OCEAN PLATEAU 9240 9.3 5.8 160 9.2 5.6 164
WHISKEY CREEK 6800 1.3 2.1 62 5.5 4.0 138
WHITE MILL 8700 6.2 4.1 151 7.1 5.1 139
WOLVERINE 7650 .8 1.5 53 4.7 3.1 152
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Basin wide percent of average 124 152
WIND RIVER
BURROUGHS CREEK 8750 4.3 2.3 187 6.6 3.3 200
COLD SPRINGS 9630 .7 2.2 32 3.0 3.2 94
DEER PARK 9700 1.7 3.7 46 4.1 5.1 80
HOBBS PARK 10100 1.7 3.9 44 3.7 3.5 106
LITTLE WARM 9370 1.8 2.3 78 4.1 3.3 124
SOUTH PASS 9040 .6 3.3 18 3.0 4.1 73
ST. LAWRENCE ALT 8620 .5 1.8 28 1.8 2.8 64
TOGWOTEE PASS 9580 7.0 4.9 143 8.1 5.1 159
TOWNSEND CREEK 8700 .3 2.1 14 2.7 3.4 79
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Basin wide percent of average 70 110
BIGHORN BASIN
BALD MTN. 9380 3.7 4.5 82 4.4 4.0 110
BEAR TRAP MEADOW 8200 1.1 1.1 100 2.6 2.7 96
BLACKWATER 9780 7.8 5.3 147 7.3 4.9 149
BONE SPRINGS DIV 9350 3.5 4.2 83 4.7 3.8 124
EVENING STAR 9200 7.0 5.4 130 9.6 5.5 175
GRAVE SPRINGS 8550 1.7 2.0 85 3.3 2.9 114
KIRWIN 9550 4.8 3.1 155 6.2 3.1 200
MARQUETTE 8760 .2 2.9 7 4.1 3.4 121
MIDDLE POWDER 7760 1.8 2.5 72 3.0 4.0 75
OWL CREEK 8975 1.5 1.5 100 3.2 1.8 178
POWDER RIVER PASS 9480 2.3 2.4 96 4.4 3.1 142
SHELL CREEK 9580 5.2 4.0 130 5.8 3.4 171
SYLVAN LAKE 8420 3.7 4.0 92 7.8 4.8 162
SYLVAN ROAD 7120 1.1 1.8 61 7.2 4.3 167
TIMBER CREEK 7950 .6 1.9 32 3.8 2.5 152
YOUNTS PEAK 8350 4.2 3.0 140 7.1 3.5 203
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Basin wide percent of average 101 146
SHOSHONE RIVER
BLACKWATER 9780 7.8 5.3 147 7.3 4.9 149
EVENING STAR 9200 7.0 5.4 130 9.6 5.5 175
KIRWIN 9550 4.8 3.1 155 6.2 3.1 200
MARQUETTE 8760 .2 2.9 7 4.1 3.4 121
SYLVAN LAKE 8420 3.7 4.0 92 7.8 4.8 162
SYLVAN ROAD 7120 1.1 1.8 61 7.2 4.3 167
YOUNTS PEAK 8350 4.2 3.0 140 7.1 3.5 203
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Basin wide percent of average 113 167
POWDER-TONGUE
BEAR TRAP MEADOW 8200 1.1 1.1 100 2.6 2.7 96
BIG GOOSE 7990 1.5 1.6 94 4.9 2.7 181
BONE SPRINGS DIV 9350 3.5 4.2 83 4.7 3.8 124
BURGESS JUNCTION 7880 1.7 2.7 63 3.9 3.4 115
CLOUD PEAK RESERVOIR 9860 3.5 2.8 125 6.2 4.0 155
DOME LAKE 8880 2.4 3.3 73 5.3 3.9 136
GRAVE SPRINGS 8550 1.7 2.0 85 3.3 2.9 114
HANSEN SAWMILL 8360 -M 1.4 * -M 2.7 *
MIDDLE POWDER 7760 1.8 2.5 72 3.0 4.0 75
POWDER RIVER PASS 9480 2.3 2.4 96 4.4 3.1 142
SUCKER CREEK 8880 2.5 2.4 104 4.6 3.6 128
TIE CREEK 6870 .1 1.1 9 3.3 3.2 103
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Basin wide percent of average 85 124
BELLE FOURCHE
BLIND PARK 6890 .8 1.5 53 1.8 3.7 49
COLE CANYON 5910 .0 1.6 0 1.6 2.6 62
NORTH RAPID CREEK 6130 .6 1.1 55 1.4 3.3 42
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Basin wide percent of average 33 50
UPPER N. PLATTE RIVER
COLUMBINE 9160 .4 2.9 14 4.3 4.4 98
DIVIDE PEAK 8880 2.4 3.4 71 3.6 4.5 80
ELK RIVER 8700 .6 1.7 35 3.7 3.7 100
JOE WRIGHT 10120 4.1 4.7 87 5.9 5.8 102
NORTH FRENCH CREEK 10130 4.5 5.6 80 6.0 5.6 107
OLD BATTLE 10000 3.4 6.1 56 5.4 6.4 84
SAGE CREEK BASIN 7850 .1 2.0 5 2.9 2.6 112
SOUTH BRUSH CREEK 8440 1.4 1.8 78 4.2 4.1 102
TOWER 10500 3.7 8.3 45 5.6 7.4 76
WEBBER SPRINGS 9250 1.9 4.3 44 4.3 5.5 78
WILLOW CREEK PASS 9540 3.0 2.5 120 3.7 3.3 112
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Basin wide percent of average 59 93
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 2.2 4.1 54 3.5 4.4 80
CASPER MTN. 7900 1.1 3.3 33 4.0 4.1 98
DEADMAN HILL 10220 4.2 3.8 111 3.7 4.0 92
DEER PARK 9700 1.7 3.7 46 4.1 5.1 80
LAPRELE CREEK 8375 .1 2.2 5 2.5 3.3 76
RENO HILL 8400 2.2 3.1 71 4.3 4.0 108
ROACH 9700 2.0 2.8 71 3.6 3.9 92
SAND LAKE 10050 4.9 6.4 77 5.8 5.2 112
SOUTH PASS 9040 .6 3.3 18 3.0 4.1 73
WINDY PEAK 7900 .5 1.5 33 2.2 2.8 79
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Basin wide percent of average 57 90
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 1.2 0 2.5 3.2 78
DIVIDE PEAK 8880 2.4 3.4 71 3.6 4.5 80
OLD BATTLE 10000 3.4 6.1 56 5.4 6.4 84
SANDSTONE RS 8150 .0 1.4 0 2.8 4.1 68
WHISKEY PARK 8950 1.7 4.0 42 4.8 5.3 91
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Basin wide percent of average 47 81
UPPER GREEN RIVER
BIG SANDY OPENING 9080 2.6 2.6 100 2.9 3.1 94
BLIND BULL SUM 8650 3.6 4.3 84 4.4 4.2 105
EAST RIM DIVIDE 7930 .6 1.9 32 2.7 2.5 108
ELKHART PARK G.S. 9400 2.0 2.1 95 3.6 3.3 109
GROS VENTRE SUMMIT 8750 3.7 2.6 142 5.3 3.1 171
KENDALL R.S. 7740 1.6 1.9 84 3.7 2.9 128
LOOMIS PARK 8240 1.7 2.6 65 3.6 3.4 106
NEW FORK LAKE 8340 1.4 1.6 87 3.0 2.8 107
SNIDER BASIN 8060 .6 2.1 29 2.6 3.1 84
SPRING CREEK DIVIDE 9000 2.9 4.0 72 4.4 4.9 90
TRIPLE PEAK 8500 3.1 3.6 86 5.9 4.4 134
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Basin wide percent of average 81 112
LOWER GREEN RIVER
HAMS FORK 7840 .1 1.3 8 1.9 2.5 76
HEWINTA 9519 .0 1.5 0 4.7 3.8 124
HICKERSON PARK 9145 .1 1.0 10 3.1 2.6 119
HOLE-IN-ROCK 9150 .4 1.0 40 3.6 2.4 150
INDIAN CREEK 9425 2.3 4.0 57 3.5 4.8 73
KELLEY R.S. 8180 1.0 2.5 40 3.4 3.9 87
STEEL CREEK PARK 10200 1.9 2.8 68 5.0 3.9 128
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Basin wide percent of average 41 105
UPPER BEAR RIVER
BUG LAKE 7950 -M 2.6 * 1.8 4.0 45
HAYDEN FORK 9212 .3 1.9 16 3.8 4.3 88
KELLEY R.S. 8180 1.0 2.5 40 3.4 3.9 87
LILY LAKE 9156 .2 1.9 11 3.9 4.2 93
MONTE CRISTO 8960 1.0 3.3 30 4.1 5.0 82
SALT RIVER SUMMIT 7760 .3 1.3 23 2.9 3.4 85
TRIAL LAKE 9992 1.6 3.8 42 3.2 4.8 67
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Basin wide percent of average 30 78
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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.