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: OCTOBER 29 , 2006
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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 .6 33* 2.4 1.9 126
COTTONWOOD CREEK 7600 1.4 .8 175* 3.1 2.8 111
GRANITE CREEK 6770 .1 .5 20* 2.6 1.6 162
GRASSY LAKE 7265 1.7 1.3 131* 5.7 3.2 178
GROS VENTRE SUMMIT 8750 1.7 1.3 131* 2.8 1.7 165
LEWIS LAKE DIVIDE 7850 1.5 1.1 136* 4.0 3.0 133
PHILLIPS BENCH 8200 1.1 1.3 85* 3.6 2.3 157
SALT RIVER SUMMIT 7600 .3 .3 100* 2.1 1.8 117
SNAKE RIVER STATION 6920 .1 .5 20* 4.4 2.1 210
SPRING CREEK DIVIDE 9000 1.3 1.4 93* 2.4 2.4 100
THUMB DIVIDE 7980 .2 .8 25* 2.3 1.9 121
TOGWOTEE PASS 9580 2.7 2.4 113* 3.3 2.6 127
TWO OCEAN PLATEAU 9240 1.9 2.8 68* 3.1 2.9 107
WILLOW CREEK 8450 1.2 1.6 75* 3.6 3.4 106
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Basin wide percent of average 92* 135
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.1 2.5 84* 2.5 2.0 125
BLACK BEAR 8170 2.4 2.5 96* 5.2 3.3 158
CANYON 8090 .9 .6 150* 2.9 1.7 171
FISHER CREEK 9100 -M 2.5 * -M 3.1 *
MADISON PLATEAU 7750 1.0 1.5 67* 3.0 2.3 130
NORTHEAST ENTRANCE 7350 .0 .3 0* 3.4 1.4 243
PARKER PEAK 9400 1.7 2.4 71* 3.1 2.2 141
SYLVAN LAKE 8420 1.3 1.8 72* 4.3 2.4 179
THUMB DIVIDE 7980 .2 .8 25* 2.3 1.9 121
TWO OCEAN PLATEAU 9240 1.9 2.8 68* 3.1 2.9 107
WHISKEY CREEK 6800 .2 .7 29* -M 2.1 *
WHITE MILL 8700 2.3 1.9 121* 3.7 2.5 148
WOLVERINE 7650 .2 .4 50* 1.9 1.7 112
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Basin wide percent of average 78* 146
WIND RIVER
BURROUGHS CREEK 8750 1.9 .9 211* 2.7 1.5 180
COLD SPRINGS 9630 .8 .9 89 1.7 1.8 94
DEER PARK 9700 1.8 2.4 75 2.9 2.3 126
HOBBS PARK 10100 1.9 2.0 95 2.2 2.0 110
LITTLE WARM 9370 1.6 1.0 160* 1.8 1.6 112
SOUTH PASS 9040 1.5 1.4 107* 2.9 2.0 145
ST. LAWRENCE ALT 8620 1.4 .8 175 1.9 1.6 119
TOGWOTEE PASS 9580 2.7 2.4 113* 3.3 2.6 127
TOWNSEND CREEK 8700 1.9 1.0 190* 3.1 2.0 155
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Basin wide percent of average 121* 129
BIGHORN BASIN
BALD MTN. 9380 5.0 2.6 192 3.9 2.3 170
BEAR TRAP MEADOW 8200 .9 .5 180 1.6 1.6 100
BLACKWATER 9780 2.1 2.9 72 2.6 2.5 104
BONE SPRINGS DIV 9350 4.1 2.5 164 3.3 2.3 143
EVENING STAR 9200 2.4 2.5 96* 4.0 2.6 154
GRAVE SPRINGS 8550 1.1 1.0 110* 1.4 2.0 70
KIRWIN 9550 1.8 1.7 106 2.4 1.7 141
MARQUETTE 8760 1.4 1.8 78 2.1 2.2 95
MIDDLE POWDER 7760 1.3 1.2 108* 1.6 2.4 67
OWL CREEK 8975 1.7 .8 212 2.1 1.1 191
POWDER RIVER PASS 9480 1.4 1.2 117* 2.1 1.8 117
SHELL CREEK 9580 4.2 2.5 168 2.4 1.9 126
SYLVAN LAKE 8420 1.3 1.8 72* 4.3 2.4 179
SYLVAN ROAD 7120 .6 .4 150* 2.9 2.0 145
TIMBER CREEK 7950 1.1 .9 122 2.0 1.5 133
YOUNTS PEAK 8350 1.0 1.3 77* 2.6 1.7 153
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Basin wide percent of average 123 129
SHOSHONE RIVER
BLACKWATER 9780 2.1 2.9 72 2.6 2.5 104
EVENING STAR 9200 2.4 2.5 96* 4.0 2.6 154
KIRWIN 9550 1.8 1.7 106 2.4 1.7 141
MARQUETTE 8760 1.4 1.8 78 2.1 2.2 95
SYLVAN LAKE 8420 1.3 1.8 72* 4.3 2.4 179
SYLVAN ROAD 7120 .6 .4 150* 2.9 2.0 145
YOUNTS PEAK 8350 1.0 1.3 77* 2.6 1.7 153
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Basin wide percent of average 85* 138
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .5 180 1.6 1.6 100
BIG GOOSE 7990 1.1 .8 138* 1.6 2.0 80
BONE SPRINGS DIV 9350 4.1 2.5 164 3.3 2.3 143
BURGESS JUNCTION 7880 1.5 1.4 107 2.9 2.1 138
CLOUD PEAK RESERVOIR 9860 1.5 1.4 107* 2.0 2.4 83
DOME LAKE 8880 1.3 1.7 76 2.1 2.3 91
GRAVE SPRINGS 8550 1.1 1.0 110* 1.4 2.0 70
HANSEN SAWMILL 8360 .9 .8 112 .9 1.7 53
MIDDLE POWDER 7760 1.3 1.2 108* 1.6 2.4 67
POWDER RIVER PASS 9480 1.4 1.2 117* 2.1 1.8 117
SUCKER CREEK 8880 2.2 1.2 183* 2.8 2.3 122
TIE CREEK 6870 .5 .7 71 2.8 2.3 122
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Basin wide percent of average 124 100
BELLE FOURCHE
BLIND PARK 6890 .8 .5 160* 1.6 2.4 67
COLE CANYON 5910 .0 .7 0 1.6 -M *
NORTH RAPID CREEK 6130 .0 .4 0* 1.3 2.3 57
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Basin wide percent of average 50* 62
UPPER N. PLATTE RIVER
COLUMBINE 9160 1.9 .7 271* 4.3 2.3 187
DIVIDE PEAK 8860 3.7 1.6 231* 5.6 2.5 224
ELK RIVER 8700 2.0 .6 333* 3.9 2.1 186
JOE WRIGHT 10120 3.4 2.4 142* 4.7 3.2 147
NORTH FRENCH CREEK 10130 3.7 3.0 123* 4.8 3.2 150
OLD BATTLE 9920 4.7 2.8 168* 6.5 3.3 197
SAGE CREEK BASIN 7850 2.9 .9 322* 4.0 1.4 286
SOUTH BRUSH CREEK 8440 1.7 .7 243* 2.9 2.4 121
TOWER 10500 5.4 3.2 169* 7.0 3.7 189
WEBBER SPRINGS 9250 3.1 1.7 182* 5.8 2.9 200
WILLOW CREEK PASS 9540 2.5 1.0 250* 2.4 1.9 126
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Basin wide percent of average 188* 180
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 3.0 2.1 143* 3.8 2.3 165
CASPER MTN. 7850 1.3 1.6 81* 1.8 2.3 78
DEADMAN HILL 10220 1.8 2.1 86 3.3 2.3 143
DEER PARK 9700 1.8 2.4 75 2.9 2.3 126
LAPRELE CREEK 8375 1.2 1.0 120* 1.6 1.8 89
RENO HILL 8500 2.0 1.6 125 2.8 2.3 122
ROACH 9700 3.8 1.1 345* 4.8 2.2 218
SAND LAKE 10050 3.9 3.0 130* 4.6 2.9 159
SOUTH PASS 9040 1.5 1.4 107* 2.9 2.0 145
WINDY PEAK 7900 1.0 .5 200* 1.6 1.6 100
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Basin wide percent of average 127* 137
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .5 40* 3.2 1.8 178
DIVIDE PEAK 8860 3.7 1.6 231* 5.6 2.5 224
OLD BATTLE 9920 4.7 2.8 168* 6.5 3.3 197
SANDSTONE RS 8150 .8 .5 160* 3.3 2.2 150
WHISKEY PARK 8950 2.5 1.6 156* 4.9 2.7 181
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Basin wide percent of average 170* 188
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.4 1.1 127* 2.1 1.7 124
BLIND BULL SUM 8900 1.2 1.6 75* 2.1 2.1 100
EAST RIM DIVIDE 7930 .0 .6 0* 1.9 1.3 146
ELKHART PARK G.S. 9400 .7 .8 87* 2.3 1.8 128
GROS VENTRE SUMMIT 8750 1.7 1.3 131* 2.8 1.7 165
KENDALL R.S. 7740 .2 .6 33* 2.2 1.4 157
LOOMIS PARK 8240 .5 .9 56* 2.3 1.7 135
NEW FORK LAKE 8340 .7 .5 140* 2.5 1.4 179
SNIDER BASIN 8060 .8 .7 114* 1.7 1.5 113
SPRING CREEK DIVIDE 9000 1.3 1.4 93* 2.4 2.4 100
TRIPLE PEAK 8500 1.1 1.1 100* 2.4 2.1 114
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Basin wide percent of average 91* 129
LOWER GREEN RIVER
HAMS FORK 7840 .6 .4 150* 2.0 1.4 143
HEWINTA 9500 -M .8 * 3.0 2.3 130
HICKERSON PARK 9100 .7 .4 175* 2.8 1.6 175
HOLE-IN-ROCK 9150 1.0 .4 250* 2.6 1.5 173
INDIAN CREEK 9425 1.4 1.4 100* 2.5 2.4 104
KELLEY R.S. 8180 .9 .9 100* 2.3 2.0 115
STEEL CREEK PARK 10100 1.8 1.5 120* 3.2 2.2 145
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Basin wide percent of average 128* 137
UPPER BEAR RIVER
BUG LAKE 7950 1.2 1.2 100* 2.3 2.2 105
HAYDEN FORK 9100 -M .8 * -M 2.3 *
KELLEY R.S. 8180 .9 .9 100* 2.3 2.0 115
LILY LAKE 9050 .8 .9 89* 3.4 2.3 148
MONTE CRISTO 8960 1.7 1.5 113* 3.9 2.6 150
SALT RIVER SUMMIT 7600 .3 .3 100* 2.1 1.8 117
TRIAL LAKE 9960 1.0 1.8 56* 4.1 2.6 158
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Basin wide percent of average 89* 134
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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.