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 TUESDAY: OCTOBER 24 , 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 .1 .4 25* 2.2 1.6 138
COTTONWOOD CREEK 7600 1.2 .6 200* 2.9 2.3 126
GRANITE CREEK 6770 .1 .4 25* 2.4 1.3 185
GRASSY LAKE 7265 1.5 .9 167* 5.4 2.6 208
GROS VENTRE SUMMIT 8750 1.4 1.0 140* 2.4 1.4 171
LEWIS LAKE DIVIDE 7850 1.3 .7 186* 3.8 2.4 158
PHILLIPS BENCH 8200 1.0 .9 111* 3.5 1.9 184
SALT RIVER SUMMIT 7600 .3 .2 150* 2.0 1.5 133
SNAKE RIVER STATION 6920 .1 .3 33* 4.2 1.7 247
SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.2 2.0 110
THUMB DIVIDE 7980 .5 .5 100* 2.2 1.6 138
TOGWOTEE PASS 9580 2.5 1.9 132* 3.2 2.2 145
TWO OCEAN PLATEAU 9240 1.4 2.3 61* 2.8 2.4 117
WILLOW CREEK 8450 1.1 1.2 92* 3.4 2.8 121
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Basin wide percent of average 111* 154
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 1.9 2.0 95* 2.4 1.6 150
BLACK BEAR 8170 2.2 1.9 116* 5.1 2.7 189
CANYON 8090 .9 .5 180* 2.8 1.4 200
FISHER CREEK 9100 -M 2.0 * -M 2.5 *
MADISON PLATEAU 7750 .8 1.1 73* 2.9 1.9 153
NORTHEAST ENTRANCE 7350 .1 .2 50* 3.3 1.2 275
PARKER PEAK 9400 1.5 1.9 79* 2.9 1.8 161
SYLVAN LAKE 8420 1.0 1.5 67* 4.0 2.0 200
THUMB DIVIDE 7980 .5 .5 100* 2.2 1.6 138
TWO OCEAN PLATEAU 9240 1.4 2.3 61* 2.8 2.4 117
WHISKEY CREEK 6800 .1 .5 20* -M 1.7 *
WHITE MILL 8700 2.3 1.4 164* 3.7 2.1 176
WOLVERINE 7650 .1 .3 33* 1.8 1.4 129
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Basin wide percent of average 91* 169
WIND RIVER
BURROUGHS CREEK 8750 1.5 .7 214* 2.4 1.3 185
COLD SPRINGS 9630 .5 .7 71* 1.2 1.5 80
DEER PARK 9700 1.3 1.8 72* 2.4 1.9 126
HOBBS PARK 10100 1.2 1.5 80* 1.5 1.6 94
LITTLE WARM 9370 1.0 .8 125* 1.3 1.3 100
SOUTH PASS 9040 .9 1.0 90* 2.3 1.6 144
ST. LAWRENCE ALT 8620 .7 .5 140* 1.2 1.3 92
TOGWOTEE PASS 9580 2.5 1.9 132* 3.2 2.2 145
TOWNSEND CREEK 8700 1.3 .7 186* 2.8 1.6 175
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Basin wide percent of average 114* 128
BIGHORN BASIN
BALD MTN. 9380 4.6 2.2 209* 3.4 1.9 179
BEAR TRAP MEADOW 8200 .3 .4 75* 1.1 1.3 85
BLACKWATER 9780 1.6 2.4 67* 2.1 2.1 100
BONE SPRINGS DIV 9350 3.7 2.0 185 2.7 1.9 142
EVENING STAR 9200 2.0 2.0 100* 3.6 2.2 164
GRAVE SPRINGS 8550 .7 .7 100* 1.1 1.6 69
KIRWIN 9550 1.4 1.4 100 2.1 1.4 150
MARQUETTE 8760 .8 1.5 53 1.6 1.8 89
MIDDLE POWDER 7760 1.1 1.0 110* 1.4 2.0 70
OWL CREEK 8975 1.4 .6 233 1.8 .9 200
POWDER RIVER PASS 9480 1.1 .9 122* 1.6 1.5 107
SHELL CREEK 9580 3.8 2.2 173 2.1 1.6 131
SYLVAN LAKE 8420 1.0 1.5 67* 4.0 2.0 200
SYLVAN ROAD 7120 .5 .3 167* 2.7 1.6 169
TIMBER CREEK 7950 .4 .6 67 1.5 1.3 115
YOUNTS PEAK 8350 .8 1.0 80* 2.2 1.4 157
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Basin wide percent of average 122* 132
SHOSHONE RIVER
BLACKWATER 9780 1.6 2.4 67* 2.1 2.1 100
EVENING STAR 9200 2.0 2.0 100* 3.6 2.2 164
KIRWIN 9550 1.4 1.4 100 2.1 1.4 150
MARQUETTE 8760 .8 1.5 53 1.6 1.8 89
SYLVAN LAKE 8420 1.0 1.5 67* 4.0 2.0 200
SYLVAN ROAD 7120 .5 .3 167* 2.7 1.6 169
YOUNTS PEAK 8350 .8 1.0 80* 2.2 1.4 157
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Basin wide percent of average 80* 146
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .3 .4 75* 1.1 1.3 85
BIG GOOSE 7990 .5 .6 83* .9 1.6 56
BONE SPRINGS DIV 9350 3.7 2.0 185 2.7 1.9 142
BURGESS JUNCTION 7880 1.0 1.1 91* 2.3 1.7 135
CLOUD PEAK RESERVOIR 9860 .7 1.0 70* 1.3 2.0 65
DOME LAKE 8880 .8 1.3 62* 1.5 1.9 79
GRAVE SPRINGS 8550 .7 .7 100* 1.1 1.6 69
HANSEN SAWMILL 8360 .4 .6 67* .4 1.4 29
MIDDLE POWDER 7760 1.1 1.0 110* 1.4 2.0 70
POWDER RIVER PASS 9480 1.1 .9 122* 1.6 1.5 107
SUCKER CREEK 8880 1.7 1.0 170* 2.3 1.9 121
TIE CREEK 6870 .5 .5 100* 2.5 1.9 132
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Basin wide percent of average 113* 92
BELLE FOURCHE
BLIND PARK 6890 -M .3 * 1.5 2.0 75
COLE CANYON 5910 .3 .5 60* 1.5 -M *
NORTH RAPID CREEK 6130 .5 .3 167* 1.2 1.9 63
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Basin wide percent of average 100* 69
UPPER N. PLATTE RIVER
COLUMBINE 9160 1.5 .5 300* 3.6 1.9 189
DIVIDE PEAK 8860 3.1 1.3 238* 4.8 2.1 229
ELK RIVER 8700 1.6 .4 400* 3.2 1.7 188
JOE WRIGHT 10120 2.2 1.8 122* 3.4 2.6 131
NORTH FRENCH CREEK 10130 3.2 2.4 133* 4.3 2.6 165
OLD BATTLE 9920 3.8 2.2 173* 5.5 2.7 204
SAGE CREEK BASIN 7850 2.5 .7 357* 3.4 1.2 283
SOUTH BRUSH CREEK 8440 1.5 .5 300* 2.5 2.0 125
TOWER 10500 4.6 2.4 192* 6.1 3.0 203
WEBBER SPRINGS 9250 2.3 1.3 177* 4.8 2.4 200
WILLOW CREEK PASS 9540 1.7 .8 212* 1.7 1.6 106
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Basin wide percent of average 196* 182
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 2.4 1.6 150* 3.2 1.9 168
CASPER MTN. 7850 .9 1.2 75* 1.4 1.9 74
DEADMAN HILL 10220 1.0 1.6 62* 2.2 1.9 116
DEER PARK 9700 1.3 1.8 72* 2.4 1.9 126
LAPRELE CREEK 8375 1.0 .7 143* 1.4 1.5 93
RENO HILL 8500 1.6 1.3 123* 2.3 1.9 121
ROACH 9700 2.5 .8 312* 3.3 1.8 183
SAND LAKE 10050 3.2 2.4 133* 3.8 2.4 158
SOUTH PASS 9040 .9 1.0 90* 2.3 1.6 144
WINDY PEAK 7900 1.1 .4 275* 1.5 1.3 115
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Basin wide percent of average 124* 131
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .2 .3 67* 2.6 1.5 173
DIVIDE PEAK 8860 3.1 1.3 238* 4.8 2.1 229
OLD BATTLE 9920 3.8 2.2 173* 5.5 2.7 204
SANDSTONE RS 8150 .6 .4 150* 2.8 1.8 156
WHISKEY PARK 8950 2.0 1.2 167* 4.2 2.2 191
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Basin wide percent of average 180* 193
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.0 .9 111* 1.7 1.4 121
BLIND BULL SUM 8900 1.1 1.1 100* 2.0 1.7 118
EAST RIM DIVIDE 7930 .0 .4 0* 1.8 1.0 180
ELKHART PARK G.S. 9400 .4 .6 67* 2.1 1.5 140
GROS VENTRE SUMMIT 8750 1.4 1.0 140* 2.4 1.4 171
KENDALL R.S. 7740 -M .4 * -M 1.2 *
LOOMIS PARK 8240 .3 .6 50* 2.1 1.4 150
NEW FORK LAKE 8340 .5 .3 167* 1.4 1.2 117
SNIDER BASIN 8060 .7 .5 140* 1.6 1.3 123
SPRING CREEK DIVIDE 9000 1.1 1.0 110* 2.2 2.0 110
TRIPLE PEAK 8500 1.0 .8 125* 2.3 1.7 135
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Basin wide percent of average 104* 134
LOWER GREEN RIVER
HAMS FORK 7840 .0 .3 0* 1.5 1.1 136
HEWINTA 9500 -M .7 * 2.6 1.9 137
HICKERSON PARK 9100 -M .3 * 2.0 1.3 154
HOLE-IN-ROCK 9150 .7 .3 233* 2.3 1.3 177
INDIAN CREEK 9425 1.0 1.0 100* 2.1 2.0 105
KELLEY R.S. 8180 .5 .6 83* 1.7 1.6 106
STEEL CREEK PARK 10100 1.7 1.3 131* 2.9 1.8 161
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Basin wide percent of average 111* 137
UPPER BEAR RIVER
BUG LAKE 7950 .8 .9 89* 1.8 1.8 100
HAYDEN FORK 9100 .0 .7 0* 4.0 1.9 211
KELLEY R.S. 8180 .5 .6 83* 1.7 1.6 106
LILY LAKE 9050 .3 .7 43* 2.8 1.9 147
MONTE CRISTO 8960 1.1 1.2 92* 3.4 2.2 155
SALT RIVER SUMMIT 7600 .3 .2 150* 2.0 1.5 133
TRIAL LAKE 9960 .7 1.4 50* 3.6 2.2 164
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Basin wide percent of average 65* 147
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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.