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 27 , 2007
-----------------------------------------------------------------------------
BASIN ELEV. SNOW WATER EQUIVALENT TOTAL PRECIPITATION
Data Site Name (Ft) % %
Current Average Avg Current Average Avg
-----------------------------------------------------------------------------
WYOMING
SNAKE RIVER
BASE CAMP 7030 1.0 .5 200* 5.0 1.8 278
COTTONWOOD CREEK 7600 1.8 .7 257* 5.0 2.6 192
GRANITE CREEK 6770 1.2 .5 240* 4.1 1.5 273
GRASSY LAKE 7265 1.2 1.1 109* 5.9 2.9 203
GROS VENTRE SUMMIT 8750 2.0 1.2 167* 3.9 1.6 244
LEWIS LAKE DIVIDE 7850 1.3 .9 144* 5.6 2.8 200
PHILLIPS BENCH 8200 1.5 1.1 136* 5.0 2.1 238
SALT RIVER SUMMIT 7600 .0 .3 0* 2.5 1.7 147
SNAKE RIVER STATION 6920 .1 .4 25* 4.6 1.9 242
SPRING CREEK DIVIDE 9000 1.8 1.2 150* 3.3 2.3 143
THUMB DIVIDE 7980 1.0 .7 143* 4.3 1.8 239
TOGWOTEE PASS 9580 4.6 2.2 209* 5.6 2.4 233
TWO OCEAN PLATEAU 9240 5.8 2.6 223* 6.1 2.7 226
WILLOW CREEK 8450 2.5 1.5 167* 6.3 3.2 197
----- -----
Basin wide percent of average 173* 215
UPPER YELLOWSTONE-MADISON
BEARTOOTH LAKE 9275 4.3 2.3 187* 4.2 1.8 233
BLACK BEAR 8170 3.6 2.3 157* 5.9 3.0 197
CANYON 8090 1.2 .6 200* 3.9 1.6 244
FISHER CREEK 9100 5.6 2.3 243* 6.6 2.9 228
MADISON PLATEAU 7750 1.5 1.3 115* 4.6 2.2 209
NORTHEAST ENTRANCE 7350 -M .2 * -M 1.3 *
PARKER PEAK 9400 4.1 2.2 186* 5.1 2.0 255
SYLVAN LAKE 8420 2.0 1.7 118* 5.6 2.3 243
THUMB DIVIDE 7980 1.0 .7 143* 4.3 1.8 239
TWO OCEAN PLATEAU 9240 5.8 2.6 223* 6.1 2.7 226
WHISKEY CREEK 6800 .8 .6 133* 4.3 1.9 226
WHITE MILL 8700 4.1 1.7 241* 5.0 2.3 217
WOLVERINE 7650 .0 .4 0* 3.2 1.6 200
----- -----
Basin wide percent of average 182* 225
WIND RIVER
BURROUGHS CREEK 8750 2.0 .8 250* 3.9 1.4 279
COLD SPRINGS 9630 .1 .8 12* 2.3 1.7 135
DEER PARK 9700 1.7 2.1 81 3.1 2.2 141
HOBBS PARK 10100 1.5 1.8 83 3.1 1.8 172
LITTLE WARM 9370 1.1 .9 122* 3.1 1.5 207
SOUTH PASS 9040 .2 1.2 17* 2.3 1.8 128
ST. LAWRENCE ALT 8620 .2 .7 29* 1.4 1.5 93
TOGWOTEE PASS 9580 4.6 2.2 209* 5.6 2.4 233
TOWNSEND CREEK 8700 .2 .9 22* 2.5 1.8 139
----- -----
Basin wide percent of average 102* 170
BIGHORN BASIN
BALD MTN. 9380 2.9 2.4 121 3.1 2.1 148
BEAR TRAP MEADOW 8200 .5 .5 100* 1.9 1.5 127
BLACKWATER 9780 5.0 2.7 185* 4.8 2.3 209
BONE SPRINGS DIV 9350 2.1 2.3 91 3.8 2.2 173
EVENING STAR 9200 4.1 2.3 178* 6.2 2.4 258
GRAVE SPRINGS 8550 1.0 .9 111* 2.5 1.8 139
KIRWIN 9550 3.4 1.6 212 4.7 1.6 294
MARQUETTE 8760 .7 1.7 41 2.8 2.0 140
MIDDLE POWDER 7760 1.8 1.1 164* 2.4 2.3 104
OWL CREEK 8975 .7 .7 100 2.4 1.0 240
POWDER RIVER PASS 9480 1.2 1.1 109* 3.1 1.7 182
SHELL CREEK 9580 3.9 2.4 162 4.5 1.8 250
SYLVAN LAKE 8420 2.0 1.7 118* 5.6 2.3 243
SYLVAN ROAD 7120 .4 .4 100* 4.9 1.8 272
TIMBER CREEK 7950 .0 .8 0 3.1 1.4 221
YOUNTS PEAK 8350 2.1 1.2 175* 5.3 1.6 331
----- -----
Basin wide percent of average 134* 205
SHOSHONE RIVER
BLACKWATER 9780 5.0 2.7 185* 4.8 2.3 209
EVENING STAR 9200 4.1 2.3 178* 6.2 2.4 258
KIRWIN 9550 3.4 1.6 212 4.7 1.6 294
MARQUETTE 8760 .7 1.7 41 2.8 2.0 140
SYLVAN LAKE 8420 2.0 1.7 118* 5.6 2.3 243
SYLVAN ROAD 7120 .4 .4 100* 4.9 1.8 272
YOUNTS PEAK 8350 2.1 1.2 175* 5.3 1.6 331
----- -----
Basin wide percent of average 153* 245
POWDER-TONGUE
BEAR TRAP MEADOW 8200 .5 .5 100* 1.9 1.5 127
BIG GOOSE 7990 1.4 .7 200* 3.9 1.8 217
BONE SPRINGS DIV 9350 2.1 2.3 91 3.8 2.2 173
BURGESS JUNCTION 7880 1.3 1.3 100* 3.3 1.9 174
CLOUD PEAK RESERVOIR 9860 2.7 1.2 225* 4.8 2.3 209
DOME LAKE 8880 1.7 1.5 113 4.3 2.2 195
GRAVE SPRINGS 8550 1.0 .9 111* 2.5 1.8 139
HANSEN SAWMILL 8360 .8 .7 114 2.7 1.6 169
MIDDLE POWDER 7760 1.8 1.1 164* 2.4 2.3 104
POWDER RIVER PASS 9480 1.2 1.1 109* 3.1 1.7 182
SUCKER CREEK 8880 1.6 1.1 145* 3.2 2.1 152
TIE CREEK 6870 .0 .6 0 2.9 2.2 132
----- -----
Basin wide percent of average 124* 164
BELLE FOURCHE
BLIND PARK 6890 .0 .4 0* 1.4 2.3 61
COLE CANYON 5910 -M .6 * .9 -M *
NORTH RAPID CREEK 6130 -M .4 * .9 2.2 41
----- -----
Basin wide percent of average 0* 51
UPPER N. PLATTE RIVER
COLUMBINE 9160 .0 .6 0* 3.5 2.1 167
DIVIDE PEAK 8860 1.1 1.5 73* 2.6 2.3 113
ELK RIVER 8700 -M .5 * 3.1 1.9 163
JOE WRIGHT 10120 2.1 2.1 100* 4.8 2.9 166
NORTH FRENCH CREEK 10130 2.3 2.7 85* 3.8 2.9 131
OLD BATTLE 9920 2.5 2.6 96* 4.2 3.1 135
SAGE CREEK BASIN 7850 .0 .8 0* 2.1 1.3 162
SOUTH BRUSH CREEK 8440 1.0 .6 167* 3.1 2.3 135
TOWER 10500 2.7 2.9 93* 4.8 3.4 141
WEBBER SPRINGS 9250 1.3 1.6 81* 3.5 2.7 130
WILLOW CREEK PASS 9540 2.1 .9 233* 3.0 1.8 167
----- -----
Basin wide percent of average 93* 144
LOWER N. PLATTE - SWEETWATER - LARAMIE
BROOKLYN LAKE 10220 1.0 1.9 53* 2.5 2.2 114
CASPER MTN. 7850 1.3 1.4 93* 3.3 2.2 150
DEADMAN HILL 10220 2.3 1.9 121* 3.3 2.2 150
DEER PARK 9700 1.7 2.1 81 3.1 2.2 141
LAPRELE CREEK 8375 .5 .9 56* 2.2 1.7 129
RENO HILL 8500 1.9 1.5 127* 3.5 2.2 159
ROACH 9700 1.8 1.0 180* 3.2 2.0 160
SAND LAKE 10050 3.6 2.8 129* 4.2 2.7 156
SOUTH PASS 9040 .2 1.2 17* 2.3 1.8 128
WINDY PEAK 7900 .6 .5 120* 1.7 1.5 113
----- -----
Basin wide percent of average 98* 142
LITTLE SNAKE RIVER
BATTLE MOUNTAIN 7440 .0 .4 0* 2.0 1.7 118
DIVIDE PEAK 8860 1.1 1.5 73* 2.6 2.3 113
OLD BATTLE 9920 2.5 2.6 96* 4.2 3.1 135
SANDSTONE RS 8150 .0 .5 0* 2.2 2.0 110
WHISKEY PARK 8950 1.0 1.4 71* 3.7 2.5 148
----- -----
Basin wide percent of average 72* 127
UPPER GREEN RIVER
BIG SANDY OPENING 9080 1.1 1.0 110* 2.0 1.6 125
BLIND BULL SUM 8900 1.8 1.4 129* 3.1 1.9 163
EAST RIM DIVIDE 7930 .0 .5 0* 2.0 1.2 167
ELKHART PARK G.S. 9400 1.0 .7 143* 2.4 1.7 141
GROS VENTRE SUMMIT 8750 2.0 1.2 167* 3.9 1.6 244
KENDALL R.S. 7740 .2 .5 40* 2.3 1.3 177
LOOMIS PARK 8240 .9 .8 112* 2.5 1.6 156
NEW FORK LAKE 8340 .5 .4 125* 2.3 1.3 177
SNIDER BASIN 8060 .1 .6 17* 1.8 1.4 129
SPRING CREEK DIVIDE 9000 1.8 1.2 150* 3.3 2.3 143
TRIPLE PEAK 8500 1.4 1.0 140* 4.4 1.9 232
----- -----
Basin wide percent of average 116* 169
LOWER GREEN RIVER
HAMS FORK 7840 .0 .4 0* 1.6 1.3 123
HEWINTA 9500 .0 .8 0* 4.3 2.1 205
HICKERSON PARK 9100 .2 .4 50* 2.8 1.5 187
HOLE-IN-ROCK 9150 .1 .4 25* 3.4 1.4 243
INDIAN CREEK 9425 1.6 1.2 133* 2.7 2.3 117
KELLEY R.S. 8180 .5 .8 62* 2.8 1.8 156
STEEL CREEK PARK 10100 4.0 1.4 286* 4.6 2.0 230
----- -----
Basin wide percent of average 119* 179
UPPER BEAR RIVER
BUG LAKE 7950 .1 1.1 9* 1.4 2.0 70
HAYDEN FORK 9100 .1 .8 12* 3.4 2.1 162
KELLEY R.S. 8180 .5 .8 62* 2.8 1.8 156
LILY LAKE 9050 .2 .8 25* 3.4 2.1 162
MONTE CRISTO 8960 .0 1.4 0* 3.1 2.4 129
SALT RIVER SUMMIT 7600 .0 .3 0* 2.5 1.7 147
TRIAL LAKE 9960 1.1 1.6 69* 2.7 2.4 113
----- -----
Basin wide percent of average 29* 133
-----------------------------------------------------------------------------
-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.