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 SATURDAY: OCTOBER 28 , 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 1.8 133
COTTONWOOD CREEK 7600 1.3 .8 162* 3.1 2.7 115
GRANITE CREEK 6770 .1 .5 20* 2.5 1.6 156
GRASSY LAKE 7265 1.7 1.2 142* 5.6 3.0 187
GROS VENTRE SUMMIT 8750 1.6 1.2 133* 2.8 1.7 165
LEWIS LAKE DIVIDE 7850 1.5 1.0 150* 4.2 2.9 145
PHILLIPS BENCH 8200 1.1 1.2 92* 3.6 2.2 164
SALT RIVER SUMMIT 7600 .3 .3 100* 2.0 1.7 118
SNAKE RIVER STATION 6920 .2 .5 40* 4.4 2.0 220
SPRING CREEK DIVIDE 9000 1.2 1.3 92* 2.3 2.4 96
THUMB DIVIDE 7980 .3 .7 43* 2.3 1.8 128
TOGWOTEE PASS 9580 2.6 2.3 113* 3.2 2.5 128
TWO OCEAN PLATEAU 9240 1.8 2.7 67* 3.1 2.8 111
WILLOW CREEK 8450 1.1 1.5 73* 3.6 3.3 109
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Basin wide percent of average 95* 139
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 2.1 2.4 88* 2.5 1.9 132
BLACK BEAR 8170 2.4 2.4 100* 5.2 3.1 168
CANYON 8090 .9 .6 150* 2.9 1.7 171
FISHER CREEK 9100 -M 2.4 * -M 3.0 *
MADISON PLATEAU 7750 .9 1.4 64* 3.0 2.3 130
NORTHEAST ENTRANCE 7350 .0 .3 0* 3.4 1.4 243
PARKER PEAK 9400 1.7 2.3 74* 3.1 2.1 148
SYLVAN LAKE 8420 1.2 1.7 71* 4.3 2.4 179
THUMB DIVIDE 7980 .3 .7 43* 2.3 1.8 128
TWO OCEAN PLATEAU 9240 1.8 2.7 67* 3.1 2.8 111
WHISKEY CREEK 6800 .2 .6 33* -M 2.0 *
WHITE MILL 8700 2.3 1.8 128* 3.8 2.4 158
WOLVERINE 7650 .2 .4 50* 1.9 1.7 112
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Basin wide percent of average 81* 150
WIND RIVER
BURROUGHS CREEK 8750 1.9 .8 237* 2.7 1.5 180
COLD SPRINGS 9630 .8 .9 89* 1.6 1.7 94
DEER PARK 9700 1.7 2.3 74 2.9 2.3 126
HOBBS PARK 10100 1.9 1.9 100 2.2 1.9 116
LITTLE WARM 9370 1.6 .9 178* 1.7 1.6 106
SOUTH PASS 9040 1.4 1.3 108* 2.9 1.9 153
ST. LAWRENCE ALT 8620 1.3 .7 186* 1.8 1.6 112
TOGWOTEE PASS 9580 2.6 2.3 113* 3.2 2.5 128
TOWNSEND CREEK 8700 1.8 .9 200* 3.0 1.9 158
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Basin wide percent of average 125* 130
BIGHORN BASIN
BALD MTN. 9380 5.0 2.5 200 3.8 2.2 173
BEAR TRAP MEADOW 8200 .9 .5 180* 1.5 1.6 94
BLACKWATER 9780 2.1 2.8 75* 2.6 2.4 108
BONE SPRINGS DIV 9350 4.2 2.4 175 3.2 2.3 139
EVENING STAR 9200 2.4 2.4 100* 3.9 2.5 156
GRAVE SPRINGS 8550 1.0 1.0 100* 1.4 1.9 74
KIRWIN 9550 1.7 1.6 106 2.4 1.7 141
MARQUETTE 8760 1.3 1.7 76 2.0 2.1 95
MIDDLE POWDER 7760 1.3 1.1 118* 1.6 2.4 67
OWL CREEK 8975 1.7 .8 212 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 1.2 1.7 71* 4.3 2.4 179
SYLVAN ROAD 7120 .6 .4 150* 3.0 1.9 158
TIMBER CREEK 7950 1.1 .9 122 2.1 1.5 140
YOUNTS PEAK 8350 1.0 1.2 83* 2.3 1.7 135
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Basin wide percent of average 127* 131
SHOSHONE RIVER
BLACKWATER 9780 2.1 2.8 75* 2.6 2.4 108
EVENING STAR 9200 2.4 2.4 100* 3.9 2.5 156
KIRWIN 9550 1.7 1.6 106 2.4 1.7 141
MARQUETTE 8760 1.3 1.7 76 2.0 2.1 95
SYLVAN LAKE 8420 1.2 1.7 71* 4.3 2.4 179
SYLVAN ROAD 7120 .6 .4 150* 3.0 1.9 158
YOUNTS PEAK 8350 1.0 1.2 83* 2.3 1.7 135
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Basin wide percent of average 87* 139
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .9 .5 180* 1.5 1.6 94
BIG GOOSE 7990 1.1 .8 138* 1.5 1.9 79
BONE SPRINGS DIV 9350 4.2 2.4 175 3.2 2.3 139
BURGESS JUNCTION 7880 1.4 1.4 100 2.8 2.0 140
CLOUD PEAK RESERVOIR 9860 1.5 1.3 115* 2.0 2.4 83
DOME LAKE 8880 1.3 1.6 81 2.1 2.3 91
GRAVE SPRINGS 8550 1.0 1.0 100* 1.4 1.9 74
HANSEN SAWMILL 8360 .8 .7 114 .8 1.7 47
MIDDLE POWDER 7760 1.3 1.1 118* 1.6 2.4 67
POWDER RIVER PASS 9480 1.4 1.1 127* 2.1 1.7 124
SUCKER CREEK 8880 2.2 1.2 183* 2.8 2.2 127
TIE CREEK 6870 .6 .7 86 2.8 2.3 122
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Basin wide percent of average 128* 100
BELLE FOURCHE
BLIND PARK 6890 .8 .5 160* 1.6 2.4 67
COLE CANYON 5910 .1 .7 14 1.6 -M *
NORTH RAPID CREEK 6130 .0 .4 0* 1.2 2.3 52
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Basin wide percent of average 56* 60
UPPER N. PLATTE RIVER
COLUMBINE 9160 2.0 .7 286* 4.4 2.2 200
DIVIDE PEAK 8860 3.7 1.5 247* 5.6 2.4 233
ELK RIVER 8700 2.1 .6 350* 3.8 2.0 190
JOE WRIGHT 10120 3.4 2.3 148* 4.7 3.0 157
NORTH FRENCH CREEK 10130 3.7 2.9 128* 4.8 3.0 160
OLD BATTLE 9920 4.6 2.7 170* 6.3 3.2 197
SAGE CREEK BASIN 7850 2.9 .8 362* 3.9 1.4 279
SOUTH BRUSH CREEK 8440 1.6 .7 229* 2.9 2.4 121
TOWER 10500 5.4 3.1 174* 6.9 3.6 192
WEBBER SPRINGS 9250 3.1 1.6 194* 5.8 2.8 207
WILLOW CREEK PASS 9540 2.5 1.0 250* 2.4 1.8 133
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Basin wide percent of average 196* 185
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 3.0 2.0 150* 3.8 2.3 165
CASPER MTN. 7850 1.3 1.5 87* 1.8 2.3 78
DEADMAN HILL 10220 1.8 2.0 90 3.3 2.3 143
DEER PARK 9700 1.7 2.3 74 2.9 2.3 126
LAPRELE CREEK 8375 1.2 .9 133* 1.6 1.7 94
RENO HILL 8500 2.0 1.5 133* 2.8 2.3 122
ROACH 9700 3.9 1.1 355* 4.8 2.1 229
SAND LAKE 10050 3.9 2.9 134* 4.5 2.8 161
SOUTH PASS 9040 1.4 1.3 108* 2.9 1.9 153
WINDY PEAK 7900 1.0 .5 200* 1.5 1.6 94
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Basin wide percent of average 132* 138
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .6 .5 120* 3.2 1.7 188
DIVIDE PEAK 8860 3.7 1.5 247* 5.6 2.4 233
OLD BATTLE 9920 4.6 2.7 170* 6.3 3.2 197
SANDSTONE RS 8150 .8 .5 160* 3.3 2.1 157
WHISKEY PARK 8950 2.5 1.5 167* 4.8 2.6 185
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Basin wide percent of average 182* 193
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.5 1.1 136* 2.2 1.7 129
BLIND BULL SUM 8900 1.2 1.5 80* 2.1 2.0 105
EAST RIM DIVIDE 7930 .1 .5 20* 1.9 1.2 158
ELKHART PARK G.S. 9400 .6 .7 86* 2.3 1.7 135
GROS VENTRE SUMMIT 8750 1.6 1.2 133* 2.8 1.7 165
KENDALL R.S. 7740 .2 .5 40* 2.1 1.4 150
LOOMIS PARK 8240 .5 .8 62* 2.3 1.7 135
NEW FORK LAKE 8340 .6 .5 120* 2.4 1.4 171
SNIDER BASIN 8060 .9 .6 150* 1.7 1.5 113
SPRING CREEK DIVIDE 9000 1.2 1.3 92* 2.3 2.4 96
TRIPLE PEAK 8500 1.1 1.0 110* 2.4 2.0 120
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Basin wide percent of average 98* 131
LOWER GREEN RIVER
HAMS FORK 7840 .6 .4 150* 2.0 1.3 154
HEWINTA 9500 .0 .8 0* 3.2 2.2 145
HICKERSON PARK 9100 1.1 .4 275* 2.8 1.6 175
HOLE-IN-ROCK 9150 1.0 .4 250* 2.6 1.5 173
INDIAN CREEK 9425 1.5 1.3 115* 2.5 2.4 104
KELLEY R.S. 8180 .9 .8 112* 2.2 1.9 116
STEEL CREEK PARK 10100 1.7 1.5 113* 3.2 2.1 152
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Basin wide percent of average 121* 142
UPPER BEAR RIVER
BUG LAKE 7950 1.2 1.1 109* 2.3 2.1 110
HAYDEN FORK 9100 -M .8 * -M 2.2 *
KELLEY R.S. 8180 .9 .8 112* 2.2 1.9 116
LILY LAKE 9050 1.0 .9 111* 3.4 2.2 155
MONTE CRISTO 8960 1.5 1.5 100* 3.9 2.5 156
SALT RIVER SUMMIT 7600 .3 .3 100* 2.0 1.7 118
TRIAL LAKE 9960 1.0 1.7 59* 4.1 2.5 164
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Basin wide percent of average 94* 139
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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.