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Water Resources Data System
Dept 3943
1000 E. University Ave.
Laramie, WY 82071

wrds@uwyo.edu
Ph (307) 766-6651
Fax (307) 766-3785


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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 20 , 2009
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030      .0      .2     0      1.8     1.1   164
 COTTONWOOD CREEK         7670      .2      .3    67      3.1     1.6   194
 GRAND TARGHEE            9260     4.2      -M      *     3.7      -M      *
 GRANITE CREEK            6770      .2      .1   200      1.8      .9   200
 GRASSY LAKE              7265      .2      .5    40      2.2     1.8   122
 GROS VENTRE SUMMIT       8750     1.8      .7   257      1.8     1.1   164
 GUNSIGHT PASS            9820     1.6      -M      *     2.6      -M      *
 LEWIS LAKE DIVIDE        7850      .5      .3   167      2.4     1.6   150
 PHILLIPS BENCH           8200      .0      .5     0      2.0     1.2   167
 SALT RIVER SUMMIT        7760      .0      .0   100      2.2     1.1   200
 SNAKE RIVER STATION      6920      .1      .1   100      1.8     1.3   138
 SPRING CREEK DIVIDE      9000     2.9      .6   483      3.4     1.3   262
 THUMB DIVIDE             7980      .1      .3    33      3.1     1.2   258
 TOGWOTEE PASS            9580     3.2     1.4   229      3.0     1.5   200
 TWO OCEAN PLATEAU        9240     3.0     1.6   188      2.3     1.7   135
 WILLOW CREEK             8380     1.6      .7   229      4.3     2.1   205
                                                -----                  -----
                Basin wide percent of average    189                    181


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360     2.5     1.6   156      2.0     1.1   182
 BLACK BEAR               8170     2.8     1.0   280      4.2     1.8   233
 CANYON                   7870      .4      .3   133      1.9      .9   211
 FISHER CREEK             9100     2.9     1.2   242      3.0     1.8   167
 MADISON PLATEAU          7750     1.5      .6   250      3.8     1.4   271
 NORTHEAST ENTRANCE       7350      .0      .1     0      1.7      .9   189
 PARKER PEAK              9400     2.8     1.7   165      2.0     1.4   143
 SYLVAN LAKE              8420      .0     1.0     0      1.7     1.5   113
 THUMB DIVIDE             7980      .1      .3    33      3.1     1.2   258
 TWO OCEAN PLATEAU        9240     3.0     1.6   188      2.3     1.7   135
 WHISKEY CREEK            6800      .0      .2     0      2.6     1.2   217
 WHITE MILL               8700     2.4      .9   267      2.3     1.5   153
 WOLVERINE                7650      .0      .2     0      1.3     1.1   118
                                                -----                  -----
                Basin wide percent of average    172                    182


WIND RIVER

 BURROUGHS CREEK          8750     2.4      .4   600      2.2      .9   244
 COLD SPRINGS             9630     1.8      .5   360      2.3     1.0   230
 DEER PARK                9700     2.8     1.0   280      3.7     1.3   285
 HOBBS PARK              10100     3.2     1.3   246      2.9     1.2   242
 LITTLE WARM              9370     1.4      .6   233      2.0     1.0   200
 SOUTH PASS               9040     2.5      .6   417      3.2     1.1   291
 ST. LAWRENCE ALT         8620     1.0      .4   250      2.5     1.0   250
 TOGWOTEE PASS            9580     3.2     1.4   229      3.0     1.5   200
 TOWNSEND CREEK           8700     2.1      .6   350      2.9     1.3   223
                                                -----                  -----
                Basin wide percent of average    300                    240


BIGHORN BASIN

 BALD MTN.                9380     2.4     1.8   133      2.2     1.5   147
 BEAR TRAP MEADOW         8200      .7      .4   175      1.7     1.0   170
 BLACKWATER               9780     2.9     2.0   145      2.4     1.5   160
 BONE SPRINGS DIV         9350     1.6     1.6   100      1.9     1.5   127
 EVENING STAR             9200     2.9     1.5   193      3.3     1.5   220
 GRAVE SPRINGS            8550     1.5      .7   214      2.3     1.4   164
 KIRWIN                   9550     2.2     1.1   200      1.8     1.0   180
 MARQUETTE                8760     2.3     1.3   177      2.3     1.4   164
 MIDDLE POWDER            7760     1.9      .9   211      2.5     1.6   156
 OWL CREEK                8975     2.1      .6   350      1.7      .7   243
 POWDER RIVER PASS        9480     1.5      .7   214      1.7     1.2   142
 SHELL CREEK              9580     2.4     1.8   133      1.8     1.2   150
 SYLVAN LAKE              8420      .0     1.0     0      1.7     1.5   113
 SYLVAN ROAD              7120      .0      .2     0      1.3     1.0   130
 TIMBER CREEK             7950      .9      .7   129      1.8      .9   200
 YOUNTS PEAK              8350     1.0      .7   143      1.6     1.1   145
                                                -----                  -----
                Basin wide percent of average    155                    160


SHOSHONE RIVER

 BLACKWATER               9780     2.9     2.0   145      2.4     1.5   160
 EVENING STAR             9200     2.9     1.5   193      3.3     1.5   220
 KIRWIN                   9550     2.2     1.1   200      1.8     1.0   180
 MARQUETTE                8760     2.3     1.3   177      2.3     1.4   164
 SYLVAN LAKE              8420      .0     1.0     0      1.7     1.5   113
 SYLVAN ROAD              7120      .0      .2     0      1.3     1.0   130
 YOUNTS PEAK              8350     1.0      .7   143      1.6     1.1   145
                                                -----                  -----
                Basin wide percent of average    145                    160


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .7      .4   175      1.7     1.0   170
 BIG GOOSE                7990      .6      .5   120      1.9     1.4   136
 BONE SPRINGS DIV         9350     1.6     1.6   100      1.9     1.5   127
 BURGESS JUNCTION         7880     1.5      .9   167      2.1     1.4   150
 CLOUD PEAK RESERVOIR     9860     1.6      .8   200      2.5     1.6   156
 DOME LAKE                8880     1.3     1.1   118      2.3     1.5   153
 GRAVE SPRINGS            8550     1.5      .7   214      2.3     1.4   164
 HANSEN SAWMILL           8360      .8      .4   200      1.7     1.1   155
 MIDDLE POWDER            7760     1.9      .9   211      2.5     1.6   156
 POWDER RIVER PASS        9480     1.5      .7   214      1.7     1.2   142
 SUCKER CREEK             8880     1.6      .8   200      2.0     1.5   133
 TIE CREEK                6870      .0      .4     0      2.4     1.6   150
                                                -----                  -----
                Basin wide percent of average    159                    149


BELLE FOURCHE

 BLIND PARK               6890      .0      .2     0      2.2     1.5   147
 COLE CANYON              5910      .0      .4     0      3.1     1.1   282
 NORTH RAPID CREEK        6130      .0      .2     0      2.1     1.5   140
                                                -----                  -----
                Basin wide percent of average      0                    180


UPPER N. PLATTE RIVER

 COLUMBINE                9160      .1      .1   100      2.6     1.2   217
 DIVIDE PEAK              8880      .1      .9    11      2.7     1.6   169
 ELK RIVER                8700      .1      .2    50      2.1     1.3   162
 JOE WRIGHT              10120      .9     1.2    75      2.3     2.0   115
 NORTH FRENCH CREEK      10130     5.0     1.8   278      5.2     1.8   289
 OLD BATTLE              10000     4.9     1.5   327      5.4     1.9   284
 SAGE CREEK BASIN         7850      .0      .5     0      2.0      .9   222
 SOUTH BRUSH CREEK        8440      .1      .3    33      3.1     1.5   207
 TOWER                   10500     5.2     1.4   371      5.5     2.0   275
 WEBBER SPRINGS           9250     1.6      .8   200      4.0     1.7   235
 WILLOW CREEK PASS        9540      .3      .5    60      1.4     1.1   127
                                                -----                  -----
                Basin wide percent of average    199                    214


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240     3.6     1.1   327       -M     1.3      *
 CASPER MTN.              7900      .1      .9    11      2.1     1.4   150
 DEADMAN HILL            10220      .3     1.2    25      2.6     1.4   186
 DEER PARK                9700     2.8     1.0   280      3.7     1.3   285
 LAPRELE CREEK            8375      .0      .4     0      1.9     1.0   190
 RENO HILL                8400      .5     1.0    50      2.1     1.4   150
 ROACH                    9700     1.4      .4   350      2.8     1.3   215
 SAND LAKE               10050     4.9     1.7   288      4.9     1.7   288
 SOUTH PASS               9040     2.5      .6   417      3.2     1.1   291
 WINDY PEAK               7900      .3      .2   150      2.1     1.0   210
                                                -----                  -----
                Basin wide percent of average    193                    219


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .1      .1   100      1.2     1.0   120
 DIVIDE PEAK              8880      .1      .9    11      2.7     1.6   169
 OLD BATTLE              10000     4.9     1.5   327      5.4     1.9   284
 SANDSTONE RS             8150      -M      .2      *     1.4     1.3   108
 WHISKEY PARK             8950     1.1      .8   138      4.0     1.7   235
                                                -----                  -----
                Basin wide percent of average    188                    196


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     2.8      .6   467      2.9     1.0   290
 BLIND BULL SUM           8650     2.0      .6   333      1.9     1.2   158
 EAST RIM DIVIDE          7930      .1      .2    50      1.8      .8   225
 ELKHART PARK G.S.        9400     2.1      .3   700      2.3     1.1   209
 GROS VENTRE SUMMIT       8750     1.8      .7   257      1.8     1.1   164
 GUNSIGHT PASS            9820     1.6      -M      *     2.6      -M      *
 KENDALL R.S.             7740      .2      .1   200      1.9      .9   211
 LOOMIS PARK              8240      .3      .3   100      1.9     1.0   190
 NEW FORK LAKE            8340      .0      .1     0      1.7      .9   189
 SNIDER BASIN             8060     1.0      .3   333      2.4      .8   300
 SPRING CREEK DIVIDE      9000     2.9      .6   483      3.4     1.3   262
 TRIPLE PEAK              8500     1.9      .4   475      3.5     1.2   292
                                                -----                  -----
                Basin wide percent of average    360                    226


LOWER GREEN RIVER

 HAMS FORK                7840      .5      .1   500      2.5      .8   312
 HEWINTA                  9519      .0      .5     0      1.0     1.4    71
 HICKERSON PARK           9145      .1      .1   100       .9     1.0    90
 HOLE-IN-ROCK             9150      .0      .1     0      1.0     1.0   100
 INDIAN CREEK             9425     4.2      .6   700      4.3     1.3   331
 KELLEY R.S.              8180     1.2      .3   400      3.2     1.1   291
 STEEL CREEK PARK        10200     1.0      .9   111      1.1     1.3    85
                                                -----                  -----
                Basin wide percent of average    269                    177


UPPER BEAR RIVER

 BUG LAKE                 7950      .4      .6    67      2.4     1.3   185
 HAYDEN FORK              9212      .1      .5    20      1.9     1.4   136
 KELLEY R.S.              8180     1.2      .3   400      3.2     1.1   291
 LILY LAKE                9156      .2      .6    33      1.1     1.4    79
 MONTE CRISTO             8960      .9      .9   100      2.4     1.6   150
 SALT RIVER SUMMIT        7760      .0      .0   100      2.2     1.1   200
 TRIAL LAKE               9992     2.0     1.0   200      2.4     1.5   160
                                                -----                  -----
                Basin wide percent of average    123                    166

-----------------------------------------------------------------------------


 -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 1961-90.

Provisional data, subject to revision.