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: OCTOBER 26 , 2011
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 .0 .4 0* 3.4 1.6 213
COTTONWOOD CREEK 7670 .2 .6 33* 4.6 2.4 192
GRAND TARGHEE 9260 2.4 -M * 4.9 -M *
GRANITE CREEK 6770 .0 .3 0* 2.4 1.4 171
GRASSY LAKE 7265 .0 .9 0* 5.1 2.6 196
GROS VENTRE SUMMIT 8750 .4 1.1 36* 1.9 1.5 127
GUNSIGHT PASS 9820 .6 -M * 2.2 -M *
LEWIS LAKE DIVIDE 7850 .1 .7 14* 4.2 2.4 175
PHILLIPS BENCH 8200 .0 1.0 0* 2.4 1.8 133
SALT RIVER SUMMIT 7760 .0 .2 0* 2.1 1.5 140
SNAKE RIVER STATION 6920 .0 .3 0* 3.7 1.8 206
SPRING CREEK DIVIDE 9000 1.3 1.1 118* 3.2 2.0 160
THUMB DIVIDE 7980 .0 .5 0* 2.7 1.7 159
TOGWOTEE PASS 9580 1.4 2.0 70* 3.0 2.2 136
TWO OCEAN PLATEAU 9240 3.4 2.4 142* 3.6 2.5 144
WILLOW CREEK 8380 .0 1.3 0* 5.2 3.0 173
----- -----
Basin wide percent of average 53* 167
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9360 2.1 2.2 95* 2.8 1.7 165
BLACK BEAR 8170 1.7 2.0 85* 5.1 2.7 189
CANYON 7870 .3 .4 75* 1.7 1.4 121
FISHER CREEK 9100 2.0 2.1 95* 3.9 2.6 150
MADISON PLATEAU 7750 .0 1.1 0* 3.7 2.0 185
NORTHEAST ENTRANCE 7350 .0 .2 0* 1.9 1.3 146
PARKER PEAK 9400 1.2 2.2 55* 3.3 1.9 174
SYLVAN LAKE 8420 .1 1.4 7* 3.9 2.1 186
THUMB DIVIDE 7980 .0 .5 0* 2.7 1.7 159
TWO OCEAN PLATEAU 9240 3.4 2.4 142* 3.6 2.5 144
WHISKEY CREEK 6800 .0 .4 0* 3.1 1.8 172
WHITE MILL 8700 1.1 1.5 73* 3.2 2.2 145
WOLVERINE 7650 .6 .3 200* 2.8 1.5 187
----- -----
Basin wide percent of average 75* 164
WIND RIVER
BURROUGHS CREEK 8750 .2 .7 29* 1.4 1.3 108
CASTLE CREEK 8400 .1 -M * 1.1 -M *
COLD SPRINGS 9630 .3 .9 33 1.5 1.6 94
DEER PARK 9700 .8 1.8 44* 2.2 2.0 110
HOBBS PARK 10100 1.6 1.9 84 2.3 1.7 135
LITTLE WARM 9370 .0 .9 0* 1.4 1.4 100
SOUTH PASS 9040 .2 1.3 15* 1.9 1.7 112
ST. LAWRENCE ALT 8620 .0 .7 0* 1.1 1.4 79
TOGWOTEE PASS 9580 1.4 2.0 70* 3.0 2.2 136
TOWNSEND CREEK 8700 .1 .9 11* 2.4 1.8 133
----- -----
Basin wide percent of average 41* 114
BIGHORN BASIN
BALD MTN. 9380 3.3 2.2 150* 3.4 2.0 170
BEAR TRAP MEADOW 8200 .3 .5 60* 1.7 1.5 113
BLACKWATER 9780 3.2 2.6 123* 3.6 2.2 164
BONE SPRINGS DIV 9350 3.5 2.1 167 4.0 2.1 190
EVENING STAR 9200 1.3 2.1 62* 3.9 2.2 177
GRAVE SPRINGS 8550 .3 1.0 30* 2.0 1.8 111
KIRWIN 9550 1.6 1.5 107 2.9 1.5 193
MARQUETTE 8760 .2 -M * 3.2 1.9 168
MIDDLE POWDER 7760 .7 1.0 70* 3.9 2.2 177
OWL CREEK 8975 .5 .7 71 1.3 1.0 130
POWDER RIVER PASS 9480 1.9 1.0 190* 3.0 1.6 188
SHELL CREEK 9580 4.1 2.3 178 3.8 1.7 224
SYLVAN LAKE 8420 .1 1.4 7* 3.9 2.1 186
SYLVAN ROAD 7120 .0 .3 0* 2.0 1.6 125
TIMBER CREEK 7950 .1 .8 13 3.6 1.3 277
YOUNTS PEAK 8350 .1 1.1 9* 2.5 1.5 167
----- -----
Basin wide percent of average 102* 173
SHOSHONE RIVER
BLACKWATER 9780 3.2 2.6 123* 3.6 2.2 164
EVENING STAR 9200 1.3 2.1 62* 3.9 2.2 177
KIRWIN 9550 1.6 1.5 107 2.9 1.5 193
MARQUETTE 8760 .2 -M * 3.2 1.9 168
SYLVAN LAKE 8420 .1 1.4 7* 3.9 2.1 186
SYLVAN ROAD 7120 .0 .3 0* 2.0 1.6 125
YOUNTS PEAK 8350 .1 1.1 9* 2.5 1.5 167
----- -----
Basin wide percent of average 70* 169
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .3 .5 60* 1.7 1.5 113
BIG GOOSE 7990 1.0 .7 143* 4.2 1.8 233
BONE SPRINGS DIV 9350 3.5 2.1 167 4.0 2.1 190
BURGESS JUNCTION 7880 1.2 1.2 100* 3.9 1.9 205
CLOUD PEAK RESERVOIR 9860 1.8 1.3 138* 3.4 2.2 155
DOME LAKE 8880 2.1 1.5 140 4.6 2.1 219
GRAVE SPRINGS 8550 .3 1.0 30* 2.0 1.8 111
HANSEN SAWMILL 8360 .0 .7 0 1.8 1.5 120
LITTLE GOOSE 8870 1.5 -M * 4.8 -M *
MIDDLE POWDER 7760 .7 1.0 70* 3.9 2.2 177
POWDER RIVER PASS 9480 1.9 1.0 190* 3.0 1.6 188
SOLDIER PARK 8720 .0 -M * 2.6 -M *
SUCKER CREEK 8880 2.5 1.0 250* 3.9 2.0 195
TIE CREEK 6870 .0 .7 0 4.4 2.2 200
----- -----
Basin wide percent of average 120* 178
BELLE FOURCHE
BLIND PARK 6890 .1 .2 50* 1.1 2.2 50
COLE CANYON 5910 .0 .8 0 1.3 1.5 87
NORTH RAPID CREEK 6130 .0 .4 0* .6 2.1 29
----- -----
Basin wide percent of average 7* 52
UPPER N. PLATTE RIVER
BLACKHALL MTN 9820 2.1 -M * 3.7 -M *
CINNABAR PARK 9574 .8 1.1 73* 3.0 2.0 150
COLUMBINE 9160 .3 .4 75* 2.5 1.9 132
DIVIDE PEAK 8880 .2 1.4 14* 2.9 2.2 132
ELK RIVER 8700 .0 .4 0* 2.3 1.8 128
JOE WRIGHT 10120 .1 1.9 5* 3.2 2.8 114
NORTH FRENCH CREEK 10130 2.5 2.5 100* 3.8 2.7 141
OLD BATTLE 10000 2.2 2.3 96* 3.5 2.9 121
SAGE CREEK BASIN 7850 .0 .8 0* 1.9 1.3 146
SOUTH BRUSH CREEK 8440 .4 .5 80* 2.8 2.2 127
TOWER 10500 1.5 2.5 60* 3.4 3.1 110
WEBBER SPRINGS 9250 .4 1.3 31* 3.2 2.5 128
WILLOW CREEK PASS 9540 2.0 .9 222* 1.8 1.7 106
----- -----
Basin wide percent of average 65* 127
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10240 .5 1.7 29* 3.0 1.9 158
CASPER MTN. 7900 1.1 1.3 85* 5.0 2.1 238
DEADMAN HILL 10220 2.0 1.8 111* 2.8 2.0 140
DEER PARK 9700 .8 1.8 44* 2.2 2.0 110
LAPRELE CREEK 8375 .0 .7 0* 1.9 1.5 127
RENO HILL 8400 1.2 1.4 86* 3.1 2.1 148
ROACH 9700 .9 .8 113* 2.7 1.9 142
SAND LAKE 10050 3.0 2.5 120* 4.0 2.4 167
SOUTH PASS 9040 .2 1.3 15* 1.9 1.7 112
WINDY PEAK 7900 .0 .4 0* 1.4 1.4 100
----- -----
Basin wide percent of average 71* 147
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .3 0* 1.6 1.6 100
DIVIDE PEAK 8880 .2 1.4 14* 2.9 2.2 132
OLD BATTLE 10000 2.2 2.3 96* 3.5 2.9 121
SANDSTONE RS 8150 -M .3 * 1.5 1.9 79
WHISKEY PARK 8950 .2 1.3 15* 3.2 2.4 133
----- -----
Basin wide percent of average 49* 115
UPPER GREEN RIVER
BIG SANDY OPENING 9080 .9 .9 100* 1.9 1.5 127
BLIND BULL SUM 8650 .4 1.2 33* 2.1 1.7 124
EAST RIM DIVIDE 7930 .2 .4 50* 2.0 1.1 182
ELKHART PARK G.S. 9400 .5 .6 83* 2.6 1.6 163
GROS VENTRE SUMMIT 8750 .4 1.1 36* 1.9 1.5 127
GUNSIGHT PASS 9820 .6 -M * 2.2 -M *
KENDALL R.S. 7740 .0 .4 0* 2.1 1.2 175
LOOMIS PARK 8240 .0 .6 0* 2.5 1.4 179
NEW FORK LAKE 8340 .0 .4 0* 2.4 1.3 185
POCKET CREEK 9360 1.5 -M * 2.6 -M *
SNIDER BASIN 8060 .1 .5 20* 1.6 1.2 133
SPRING CREEK DIVIDE 9000 1.3 1.1 118* 3.2 2.0 160
TRIPLE PEAK 8500 .2 .8 25* 2.9 1.8 161
----- -----
Basin wide percent of average 50* 155
LOWER GREEN RIVER
HAMS FORK 7840 .0 .3 0* 2.5 1.1 227
HEWINTA 9519 -M .7 * 2.8 2.0 140
HICKERSON PARK 9145 -M .3 * -M 1.4 *
HOLE-IN-ROCK 9150 .7 .3 233* 3.0 1.4 214
INDIAN CREEK 9425 1.4 1.1 127* 2.9 2.0 145
KELLEY R.S. 8180 .1 .7 14* 2.8 1.7 165
STEEL CREEK PARK 10200 1.6 1.3 123* 3.4 1.9 179
----- -----
Basin wide percent of average 103* 172
UPPER BEAR RIVER
BUG LAKE 7950 .3 1.0 30* 1.6 1.9 84
HAYDEN FORK 9212 .2 .7 29* 4.1 2.0 205
KELLEY R.S. 8180 .1 .7 14* 2.8 1.7 165
LILY LAKE 9156 .0 .8 0* 2.8 2.0 140
MONTE CRISTO 8960 .0 1.2 0* 2.3 2.3 100
SALT RIVER SUMMIT 7760 .0 .2 0* 2.1 1.5 140
TRIAL LAKE 9992 .7 1.5 47* 2.5 2.2 114
----- -----
Basin wide percent of average 21* 134
-----------------------------------------------------------------------------
-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.
----------------------------------------------------------------------------
-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.