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 FRIDAY: OCTOBER 27 , 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 .5 40* 2.4 1.8 133
COTTONWOOD CREEK 7600 1.2 .7 171* 3.0 2.6 115
GRANITE CREEK 6770 .1 .5 20* 2.5 1.5 167
GRASSY LAKE 7265 1.7 1.1 155* 5.6 2.9 193
GROS VENTRE SUMMIT 8750 1.6 1.2 133* 2.7 1.6 169
LEWIS LAKE DIVIDE 7850 1.4 .9 156* 3.9 2.8 139
PHILLIPS BENCH 8200 1.0 1.1 91* 3.6 2.1 171
SALT RIVER SUMMIT 7600 .2 .3 67* 2.0 1.7 118
SNAKE RIVER STATION 6920 .2 .4 50* 4.4 1.9 232
SPRING CREEK DIVIDE 9000 1.2 1.2 100* 2.2 2.3 96
THUMB DIVIDE 7980 .3 .7 43* 2.2 1.8 122
TOGWOTEE PASS 9580 2.6 2.2 118* 3.2 2.4 133
TWO OCEAN PLATEAU 9240 1.7 2.6 65* 3.0 2.7 111
WILLOW CREEK 8450 1.3 1.5 87* 3.6 3.2 112
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Basin wide percent of average 99* 142
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.1 2.3 91* 2.6 1.8 144
BLACK BEAR 8170 2.4 2.3 104* 5.2 3.0 173
CANYON 8090 .9 .6 150* 2.9 1.6 181
FISHER CREEK 9100 -M 2.3 * -M 2.9 *
MADISON PLATEAU 7750 .9 1.3 69* 2.9 2.2 132
NORTHEAST ENTRANCE 7350 .0 .2 0* 3.4 1.3 262
PARKER PEAK 9400 1.7 2.2 77* 3.0 2.0 150
SYLVAN LAKE 8420 1.1 1.7 65* 4.3 2.3 187
THUMB DIVIDE 7980 .3 .7 43* 2.2 1.8 122
TWO OCEAN PLATEAU 9240 1.7 2.6 65* 3.0 2.7 111
WHISKEY CREEK 6800 .2 .6 33* -M 1.9 *
WHITE MILL 8700 2.3 1.7 135* 3.8 2.3 165
WOLVERINE 7650 .2 .4 50* 1.8 1.6 112
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Basin wide percent of average 83* 155
WIND RIVER
BURROUGHS CREEK 8750 1.8 .8 225* 2.7 1.4 193
COLD SPRINGS 9630 .8 .8 100* 1.6 1.7 94
DEER PARK 9700 1.6 2.1 76 2.8 2.2 127
HOBBS PARK 10100 1.9 1.8 106 2.2 1.8 122
LITTLE WARM 9370 1.5 .9 167* 1.6 1.5 107
SOUTH PASS 9040 1.4 1.2 117* 3.0 1.8 167
ST. LAWRENCE ALT 8620 1.4 .7 200* 1.9 1.5 127
TOGWOTEE PASS 9580 2.6 2.2 118* 3.2 2.4 133
TOWNSEND CREEK 8700 1.7 .9 189* 2.9 1.8 161
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Basin wide percent of average 129* 136
BIGHORN BASIN
BALD MTN. 9380 5.0 2.4 208 3.8 2.1 181
BEAR TRAP MEADOW 8200 .8 .5 160* 1.4 1.5 93
BLACKWATER 9780 2.0 2.7 74* 2.5 2.3 109
BONE SPRINGS DIV 9350 4.2 2.3 183 3.1 2.2 141
EVENING STAR 9200 2.4 2.3 104* 3.7 2.4 154
GRAVE SPRINGS 8550 1.0 .9 111* 1.4 1.8 78
KIRWIN 9550 1.8 1.6 112 2.4 1.6 150
MARQUETTE 8760 1.2 1.7 71 2.0 2.0 100
MIDDLE POWDER 7760 1.3 1.1 118* 1.6 2.3 70
OWL CREEK 8975 1.6 .7 229 2.0 1.0 200
POWDER RIVER PASS 9480 1.4 1.1 127* 2.1 1.7 124
SHELL CREEK 9580 4.2 2.4 175 2.5 1.8 139
SYLVAN LAKE 8420 1.1 1.7 65* 4.3 2.3 187
SYLVAN ROAD 7120 .6 .4 150* 2.9 1.8 161
TIMBER CREEK 7950 1.1 .8 138 2.2 1.4 157
YOUNTS PEAK 8350 1.0 1.2 83* 2.8 1.6 175
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Basin wide percent of average 129* 137
SHOSHONE RIVER
BLACKWATER 9780 2.0 2.7 74* 2.5 2.3 109
EVENING STAR 9200 2.4 2.3 104* 3.7 2.4 154
KIRWIN 9550 1.8 1.6 112 2.4 1.6 150
MARQUETTE 8760 1.2 1.7 71 2.0 2.0 100
SYLVAN LAKE 8420 1.1 1.7 65* 4.3 2.3 187
SYLVAN ROAD 7120 .6 .4 150* 2.9 1.8 161
YOUNTS PEAK 8350 1.0 1.2 83* 2.8 1.6 175
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Basin wide percent of average 87* 147
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .8 .5 160* 1.4 1.5 93
BIG GOOSE 7990 1.0 .7 143* 1.4 1.8 78
BONE SPRINGS DIV 9350 4.2 2.3 183 3.1 2.2 141
BURGESS JUNCTION 7880 1.4 1.3 108* 2.8 1.9 147
CLOUD PEAK RESERVOIR 9860 1.5 1.2 125* 1.9 2.3 83
DOME LAKE 8880 1.2 1.5 80 2.1 2.2 95
GRAVE SPRINGS 8550 1.0 .9 111* 1.4 1.8 78
HANSEN SAWMILL 8360 .8 .7 114 .7 1.6 44
MIDDLE POWDER 7760 1.3 1.1 118* 1.6 2.3 70
POWDER RIVER PASS 9480 1.4 1.1 127* 2.1 1.7 124
SUCKER CREEK 8880 2.2 1.1 200* 2.7 2.1 129
TIE CREEK 6870 .6 .6 100 2.8 2.2 127
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Basin wide percent of average 134* 102
BELLE FOURCHE
BLIND PARK 6890 .8 .4 200* 1.6 2.3 70
COLE CANYON 5910 .1 .6 17 1.5 -M *
NORTH RAPID CREEK 6130 .0 .4 0* 1.2 2.2 55
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Basin wide percent of average 64* 62
UPPER N. PLATTE RIVER
COLUMBINE 9160 2.0 .6 333* 4.2 2.1 200
DIVIDE PEAK 8860 3.7 1.5 247* 5.5 2.3 239
ELK RIVER 8700 2.1 .5 420* 3.8 1.9 200
JOE WRIGHT 10120 3.3 2.1 157* 4.6 2.9 159
NORTH FRENCH CREEK 10130 3.7 2.7 137* 4.8 2.9 166
OLD BATTLE 9920 4.6 2.6 177* 6.0 3.1 194
SAGE CREEK BASIN 7850 2.9 .8 362* 3.9 1.3 300
SOUTH BRUSH CREEK 8440 1.7 .6 283* 2.8 2.3 122
TOWER 10500 5.4 2.9 186* 6.9 3.4 203
WEBBER SPRINGS 9250 3.0 1.6 188* 5.7 2.7 211
WILLOW CREEK PASS 9540 2.5 .9 278* 2.4 1.8 133
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Basin wide percent of average 208* 190
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 3.0 1.9 158* 3.8 2.2 173
CASPER MTN. 7850 1.2 1.4 86* 1.7 2.2 77
DEADMAN HILL 10220 1.9 1.9 100* 3.3 2.2 150
DEER PARK 9700 1.6 2.1 76 2.8 2.2 127
LAPRELE CREEK 8375 1.1 .9 122* 1.5 1.7 88
RENO HILL 8500 1.9 1.5 127* 2.7 2.2 123
ROACH 9700 3.9 1.0 390* 4.7 2.0 235
SAND LAKE 10050 3.8 2.8 136* 4.5 2.7 167
SOUTH PASS 9040 1.4 1.2 117* 3.0 1.8 167
WINDY PEAK 7900 .9 .5 180* 1.4 1.5 93
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Basin wide percent of average 136* 142
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .6 .4 150* 3.1 1.7 182
DIVIDE PEAK 8860 3.7 1.5 247* 5.5 2.3 239
OLD BATTLE 9920 4.6 2.6 177* 6.0 3.1 194
SANDSTONE RS 8150 .8 .5 160* 3.3 2.0 165
WHISKEY PARK 8950 2.6 1.4 186* 4.8 2.5 192
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Basin wide percent of average 192* 196
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.4 1.0 140* 2.1 1.6 131
BLIND BULL SUM 8900 1.1 1.4 79* 2.1 1.9 111
EAST RIM DIVIDE 7930 .1 .5 20* 1.9 1.2 158
ELKHART PARK G.S. 9400 .6 .7 86* 2.2 1.7 129
GROS VENTRE SUMMIT 8750 1.6 1.2 133* 2.7 1.6 169
KENDALL R.S. 7740 .3 .5 60* 2.1 1.3 162
LOOMIS PARK 8240 .4 .8 50* 2.2 1.6 138
NEW FORK LAKE 8340 .7 .4 175* 2.5 1.3 192
SNIDER BASIN 8060 .8 .6 133* 1.6 1.4 114
SPRING CREEK DIVIDE 9000 1.2 1.2 100* 2.2 2.3 96
TRIPLE PEAK 8500 1.1 1.0 110* 2.3 1.9 121
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Basin wide percent of average 100* 134
LOWER GREEN RIVER
HAMS FORK 7840 .6 .4 150* 2.0 1.3 154
HEWINTA 9500 .0 .8 0* 3.1 2.1 148
HICKERSON PARK 9100 1.1 .4 275* 2.9 1.5 193
HOLE-IN-ROCK 9150 1.0 .4 250* 2.6 1.4 186
INDIAN CREEK 9425 1.3 1.2 108* 2.4 2.3 104
KELLEY R.S. 8180 .9 .8 112* 2.2 1.8 122
STEEL CREEK PARK 10100 1.6 1.4 114* 3.1 2.0 155
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Basin wide percent of average 120* 148
UPPER BEAR RIVER
BUG LAKE 7950 1.2 1.1 109* 2.3 2.0 115
HAYDEN FORK 9100 -M .8 * -M 2.1 *
KELLEY R.S. 8180 .9 .8 112* 2.2 1.8 122
LILY LAKE 9050 .9 .8 112* 3.4 2.1 162
MONTE CRISTO 8960 1.5 1.4 107* 3.9 2.4 162
SALT RIVER SUMMIT 7600 .2 .3 67* 2.0 1.7 118
TRIAL LAKE 9960 1.0 1.6 62* 4.1 2.4 171
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Basin wide percent of average 95* 144
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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.