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 WEDNESDAY: NOVEMBER 7 , 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 .8 1.3 62* 5.4 2.9 186
COTTONWOOD CREEK 7600 1.8 1.6 112* 5.1 4.1 124
GRANITE CREEK 6770 .9 1.0 90* 4.3 2.5 172
GRASSY LAKE 7265 1.8 2.5 72* 6.7 4.7 143
GROS VENTRE SUMMIT 8750 2.5 1.8 139 4.1 2.4 171
LEWIS LAKE DIVIDE 7850 1.3 2.4 54* 6.6 4.6 143
PHILLIPS BENCH 8200 1.6 2.3 70* 5.5 3.5 157
SALT RIVER SUMMIT 7600 .2 .7 29* 2.6 2.6 100
SNAKE RIVER STATION 6920 .0 1.2 0* 5.2 3.1 168
SPRING CREEK DIVIDE 9000 1.8 2.5 72* 3.4 3.6 94
THUMB DIVIDE 7980 .5 1.4 36* 4.6 2.8 164
TOGWOTEE PASS 9580 4.9 3.5 140 6.0 3.8 158
TWO OCEAN PLATEAU 9240 5.9 4.1 144 6.5 4.2 155
WILLOW CREEK 8450 2.0 2.9 69* 6.9 4.9 141
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Basin wide percent of average 89* 147
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 5.1 3.6 142 5.0 2.9 172
BLACK BEAR 8170 4.3 4.0 108* 6.9 5.0 138
CANYON 8090 1.4 1.1 127* 4.2 2.5 168
FISHER CREEK 9100 5.9 3.9 151 7.0 4.7 149
MADISON PLATEAU 7750 1.8 2.4 75* 5.2 3.5 149
NORTHEAST ENTRANCE 7350 .1 .6 17* 3.4 2.1 162
PARKER PEAK 9400 4.7 3.4 138 5.8 3.0 193
SYLVAN LAKE 8420 2.3 2.8 82 6.1 3.6 169
THUMB DIVIDE 7980 .5 1.4 36* 4.6 2.8 164
TWO OCEAN PLATEAU 9240 5.9 4.1 144 6.5 4.2 155
WHISKEY CREEK 6800 1.1 1.3 85* 4.7 3.0 157
WHITE MILL 8700 4.3 2.9 148 5.4 3.8 142
WOLVERINE 7650 .3 .9 33* 3.7 2.4 154
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Basin wide percent of average 116* 157
WIND RIVER
BURROUGHS CREEK 8750 2.0 1.5 133 4.2 2.3 183
COLD SPRINGS 9630 .3 1.5 20 2.5 2.4 104
DEER PARK 9700 1.5 3.1 48 3.3 3.5 94
HOBBS PARK 10100 1.7 2.9 59 3.3 2.7 122
LITTLE WARM 9370 1.1 1.6 69 3.2 2.4 133
SOUTH PASS 9040 .1 2.2 5 2.5 3.0 83
ST. LAWRENCE ALT 8620 .2 1.3 15 1.5 2.1 71
TOGWOTEE PASS 9580 4.9 3.5 140 6.0 3.8 158
TOWNSEND CREEK 8700 .2 1.5 13 2.6 2.7 96
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Basin wide percent of average 63 117
BIGHORN BASIN
BALD MTN. 9380 3.3 3.5 94 3.9 3.1 126
BEAR TRAP MEADOW 8200 .9 .8 112 2.3 2.1 110
BLACKWATER 9780 5.2 4.0 130 5.2 3.7 141
BONE SPRINGS DIV 9350 2.7 3.3 82 4.2 3.1 135
EVENING STAR 9200 4.3 3.8 113 6.7 4.0 168
GRAVE SPRINGS 8550 1.4 1.5 93 2.9 2.5 116
KIRWIN 9550 3.8 2.4 158 5.0 2.3 217
MARQUETTE 8760 .1 2.3 4 3.4 2.7 126
MIDDLE POWDER 7760 1.8 1.8 100 2.8 3.1 90
OWL CREEK 8975 1.0 1.2 83 2.6 1.4 186
POWDER RIVER PASS 9480 1.7 1.7 100 3.6 2.4 150
SHELL CREEK 9580 4.5 3.2 141 5.0 2.6 192
SYLVAN LAKE 8420 2.3 2.8 82 6.1 3.6 169
SYLVAN ROAD 7120 .3 1.0 30* 5.3 3.1 171
TIMBER CREEK 7950 .5 1.4 36 3.5 2.0 175
YOUNTS PEAK 8350 2.7 2.0 135 5.7 2.6 219
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Basin wide percent of average 99 154
SHOSHONE RIVER
BLACKWATER 9780 5.2 4.0 130 5.2 3.7 141
EVENING STAR 9200 4.3 3.8 113 6.7 4.0 168
KIRWIN 9550 3.8 2.4 158 5.0 2.3 217
MARQUETTE 8760 .1 2.3 4 3.4 2.7 126
SYLVAN LAKE 8420 2.3 2.8 82 6.1 3.6 169
SYLVAN ROAD 7120 .3 1.0 30* 5.3 3.1 171
YOUNTS PEAK 8350 2.7 2.0 135 5.7 2.6 219
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Basin wide percent of average 102 170
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .8 112 2.3 2.1 110
BIG GOOSE 7990 1.6 1.2 133* 4.5 2.4 188
BONE SPRINGS DIV 9350 2.7 3.3 82 4.2 3.1 135
BURGESS JUNCTION 7880 1.6 2.1 76 3.6 2.7 133
CLOUD PEAK RESERVOIR 9860 3.1 2.1 148 5.6 3.1 181
DOME LAKE 8880 2.2 2.5 88 4.8 3.1 155
GRAVE SPRINGS 8550 1.4 1.5 93 2.9 2.5 116
HANSEN SAWMILL 8360 1.2 1.1 109 3.4 2.2 155
MIDDLE POWDER 7760 1.8 1.8 100 2.8 3.1 90
POWDER RIVER PASS 9480 1.7 1.7 100 3.6 2.4 150
SUCKER CREEK 8880 2.2 1.8 122 4.2 2.9 145
TIE CREEK 6870 .0 1.0 0 3.2 2.8 114
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Basin wide percent of average 98 139
BELLE FOURCHE
BLIND PARK 6890 .4 1.0 40 1.5 3.1 48
COLE CANYON 5910 .0 1.1 0 1.0 -M *
NORTH RAPID CREEK 6130 .7 .7 100* 1.1 2.8 39
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Basin wide percent of average 39 44
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 1.6 0* 3.9 3.3 118
DIVIDE PEAK 8860 2.0 2.4 83 3.3 3.5 94
ELK RIVER 8700 .4 1.1 36* 3.2 2.9 110
JOE WRIGHT 10120 -M 3.5 * -M 4.3 *
NORTH FRENCH CREEK 10130 3.1 4.2 74 4.7 4.3 109
OLD BATTLE 9920 2.8 4.3 65 4.8 4.8 100
SAGE CREEK BASIN 7850 .0 1.4 0 2.8 2.0 140
SOUTH BRUSH CREEK 8440 1.1 1.2 92* 3.8 3.2 119
TOWER 10500 3.2 5.4 59 5.2 5.4 96
WEBBER SPRINGS 9250 1.4 2.9 48 3.9 4.1 95
WILLOW CREEK PASS 9540 2.8 1.7 165 3.3 2.6 127
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Basin wide percent of average 64 108
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.7 2.9 59 3.1 3.3 94
CASPER MTN. 7850 1.3 2.4 54 3.8 3.1 123
DEADMAN HILL 10220 3.3 2.9 114 3.6 3.1 116
DEER PARK 9700 1.5 3.1 48 3.3 3.5 94
LAPRELE CREEK 8375 .2 1.5 13 2.3 2.5 92
RENO HILL 8500 2.1 2.3 91 4.1 3.1 132
ROACH 9700 1.9 1.9 100 3.4 3.0 113
SAND LAKE 10050 4.2 4.5 93 5.2 4.0 130
SOUTH PASS 9040 .1 2.2 5 2.5 3.0 83
WINDY PEAK 7900 .5 .9 56 1.9 2.2 86
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Basin wide percent of average 68 108
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 -M .8 * 2.4 2.5 96
DIVIDE PEAK 8860 2.0 2.4 83 3.3 3.5 94
OLD BATTLE 9920 2.8 4.3 65 4.8 4.8 100
SANDSTONE RS 8150 .2 .9 22* 2.4 3.0 80
WHISKEY PARK 8950 2.3 2.6 88* 4.3 4.0 108
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Basin wide percent of average 72* 97
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.4 1.8 78 2.0 2.4 83
BLIND BULL SUM 8900 1.8 2.7 67* 3.2 3.1 103
EAST RIM DIVIDE 7930 .0 1.1 0* 2.0 1.8 111
ELKHART PARK G.S. 9400 1.1 1.4 79* 2.3 2.5 92
GROS VENTRE SUMMIT 8750 2.5 1.8 139 4.1 2.4 171
KENDALL R.S. 7740 .3 1.1 27* 2.3 2.1 110
LOOMIS PARK 8240 .6 1.6 37* 2.4 2.5 96
NEW FORK LAKE 8340 .7 1.0 70* 2.1 2.0 105
SNIDER BASIN 8060 .3 1.3 23* 1.9 2.3 83
SPRING CREEK DIVIDE 9000 1.8 2.5 72* 3.4 3.6 94
TRIPLE PEAK 8500 2.2 2.2 100* 4.6 3.1 148
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Basin wide percent of average 69* 109
LOWER GREEN RIVER
HAMS FORK 7840 .0 .8 0* 1.6 1.9 84
HEWINTA 9500 -M 1.1 * 4.4 3.0 147
HICKERSON PARK 9100 .0 .7 0* 2.8 2.1 133
HOLE-IN-ROCK 9150 .0 .7 0* 3.5 2.0 175
INDIAN CREEK 9425 1.6 2.5 64* 2.8 3.6 78
KELLEY R.S. 8180 .5 1.6 31* 2.9 2.9 100
STEEL CREEK PARK 10100 .9 2.1 43 4.8 3.0 160
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Basin wide percent of average 36* 123
UPPER BEAR RIVER
BUG LAKE 7950 -M 1.8 * 1.2 3.1 39
HAYDEN FORK 9100 .2 1.3 15* 3.6 3.2 112
KELLEY R.S. 8180 .5 1.6 31* 2.9 2.9 100
LILY LAKE 9050 .2 1.3 15* 3.7 3.1 119
MONTE CRISTO 8960 .3 2.3 13* 3.2 3.8 84
SALT RIVER SUMMIT 7600 .2 .7 29* 2.6 2.6 100
TRIAL LAKE 9960 1.2 2.6 46* 3.0 3.7 81
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Basin wide percent of average 27* 90
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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.