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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: AUGUST 23 , 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      .0   100*    40.1    31.2   129
 COTTONWOOD CREEK         7670      .0      .0   100*    57.0    40.3   141
 GRAND TARGHEE            9260      .0      -M      *    63.2      -M      *
 GRANITE CREEK            6770      .0      .0   100*    39.4    28.8   137
 GRASSY LAKE              7265      .0      .0   100*    66.0    50.8   130
 GROS VENTRE SUMMIT       8750      .0      .0   100*    26.6    22.5   118
 GUNSIGHT PASS            9820      .0      -M      *    32.6      -M      *
 LEWIS LAKE DIVIDE        7850      .1      .0      *    59.3    50.8   117
 PHILLIPS BENCH           8200      .1      .0      *    53.1    41.3   129
 SALT RIVER SUMMIT        7760      .0      .0   100*    33.3    27.5   121
 SNAKE RIVER STATION      6920      .0      .0   100*    44.4    33.2   134
 SPRING CREEK DIVIDE      9000      -M      .0      *      -M    37.0      *
 THUMB DIVIDE             7980      .1      .0      *    35.8    28.7   125
 TOGWOTEE PASS            9580      .0      .0   100*    50.0    38.1   131
 TWO OCEAN PLATEAU        9240      .0      .0   100*    51.3    42.4   121
 WILLOW CREEK             8380      .0      .0   100*    65.7    48.4   136
                                                -----                  -----
                Basin wide percent of average       *                   129


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360      .0      .0   100*    41.6    33.0   126
 BLACK BEAR               8170      .0      .0   100*    73.1    56.7   129
 CANYON                   7870      .0      .0   100*    29.9    25.5   117
 FISHER CREEK             9100      .0      .0   100*    61.5    54.8   112
 MADISON PLATEAU          7750      .0      .0   100*    52.2    39.5   132
 NORTHEAST ENTRANCE       7350      .0      .0   100*    27.5    23.5   117
 PARKER PEAK              9400      .0      .0   100*    46.2    28.8   160
 SYLVAN LAKE              8420      .0      .0   100*    47.8    35.0   137
 THUMB DIVIDE             7980      .1      .0      *    35.8    28.7   125
 TWO OCEAN PLATEAU        9240      .0      .0   100*    51.3    42.4   121
 WHISKEY CREEK            6800      .0      .0   100*    70.8    32.5   218
 WHITE MILL               8700      .0      .0   100*    44.8    42.4   106
 WOLVERINE                7650      .0      .0   100*    26.4    23.4   113
                                                -----                  -----
                Basin wide percent of average       *                   131


WIND RIVER

 BURROUGHS CREEK          8750      .0      .0   100*    31.4    27.4   115
 CASTLE CREEK             8400      .0      -M      *    16.7      -M      *
 COLD SPRINGS             9630      .0      .0   100*    22.8    21.7   105
 DEER PARK                9700      .0      .0   100*    37.0    35.7   104
 HOBBS PARK              10100      .0      .0   100*    30.2    26.1   116
 LITTLE WARM              9370      .0      .0   100*    27.5    24.9   110
 SOUTH PASS               9040      .0      .0   100*    27.1    30.1    90
 ST. LAWRENCE ALT         8620      .0      .0   100*    21.9    19.7   111
 TOGWOTEE PASS            9580      .0      .0   100*    50.0    38.1   131
 TOWNSEND CREEK           8700      .0      .0   100*    24.2    23.2   104
                                                -----                  -----
                Basin wide percent of average       *                   110


BIGHORN BASIN

 BALD MTN.                9380      .0      .0   100*    38.3    31.2   123
 BEAR TRAP MEADOW         8200      .0      .0   100*    22.0    19.2   115
 BLACKWATER               9780      .0      .0   100*    44.7    35.7   125
 BONE SPRINGS DIV         9350      .0      .0   100*    35.3    29.0   122
 EVENING STAR             9200      .0      .0   100*    58.0    41.5   140
 GRAVE SPRINGS            8550      .0      .0   100*    24.1    21.1   114
 KIRWIN                   9550      .0      .0   100*    26.7    24.3   110
 MARQUETTE                8760      .0      -M      *    22.2    24.5    91
 MIDDLE POWDER            7760      .0      .0   100*    25.5    24.0   106
 OWL CREEK                8975      .0      .0   100*    16.5    16.0   103
 POWDER RIVER PASS        9480      .0      .0   100*    33.5    25.1   133
 SHELL CREEK              9580      .0      .0   100*    33.8    26.7   127
 SYLVAN LAKE              8420      .0      .0   100*    47.8    35.0   137
 SYLVAN ROAD              7120      .0      .0   100*    35.5    28.2   126
 TIMBER CREEK             7950      .0      .0   100*    18.6    19.5    95
 YOUNTS PEAK              8350      .0      .0   100*    29.6    28.3   105
                                                -----                  -----
                Basin wide percent of average       *                   119


SHOSHONE RIVER

 BLACKWATER               9780      .0      .0   100*    44.7    35.7   125
 EVENING STAR             9200      .0      .0   100*    58.0    41.5   140
 KIRWIN                   9550      .0      .0   100*    26.7    24.3   110
 MARQUETTE                8760      .0      -M      *    22.2    24.5    91
 SYLVAN LAKE              8420      .0      .0   100*    47.8    35.0   137
 SYLVAN ROAD              7120      .0      .0   100*    35.5    28.2   126
 YOUNTS PEAK              8350      .0      .0   100*    29.6    28.3   105
                                                -----                  -----
                Basin wide percent of average       *                   122


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .0      .0   100*    22.0    19.2   115
 BIG GOOSE                7990      .0      .0   100*    28.0    20.3   138
 BONE SPRINGS DIV         9350      .0      .0   100*    35.3    29.0   122
 BURGESS JUNCTION         7880      .0      .0   100*    30.4    24.3   125
 CLOUD PEAK RESERVOIR     9860      .0      .0   100*    34.8    28.3   123
 DOME LAKE                8880      .0      .0   100*    31.3    26.3   119
 GRAVE SPRINGS            8550      .0      .0   100*    24.1    21.1   114
 HANSEN SAWMILL           8360      .0      .0   100*    24.1    20.0   121
 LITTLE GOOSE             8870      .0      -M      *    31.9      -M      *
 MIDDLE POWDER            7760      .0      .0   100*    25.5    24.0   106
 POWDER RIVER PASS        9480      .0      .0   100*    33.5    25.1   133
 SOLDIER PARK             8720      .0      -M      *    24.0      -M      *
 SUCKER CREEK             8880      .0      .0   100*    36.0    27.5   131
 TIE CREEK                6870      .0      .0   100*    29.3    22.6   130
                                                -----                  -----
                Basin wide percent of average       *                   123


BELLE FOURCHE

 BLIND PARK               6890      .0      .0   100*    32.4    25.1   129
 COLE CANYON              5910      .0      .0   100*    31.0    20.8   149
 NORTH RAPID CREEK        6130      .0      .0   100*    31.1    23.7   131
                                                -----                  -----
                Basin wide percent of average       *                   136


UPPER N. PLATTE RIVER

 BLACKHALL MTN            9820      .0      -M      *    62.8      -M      *
 CINNABAR PARK            9574      .9      .0      *      -M    31.1      *
 COLUMBINE                9160      .0      .0   100*    52.7    36.1   146
 DIVIDE PEAK              8880      .0      .0   100*    44.2    31.3   141
 ELK RIVER                8700      .0      .0   100*    41.2    30.2   136
 JOE WRIGHT              10120      .0      .0   100*    60.8    41.6   146
 NORTH FRENCH CREEK      10130      .0      .0   100*      -M    40.0      *
 OLD BATTLE              10000      .0      .0   100*    70.3    48.7   144
 SAGE CREEK BASIN         7850      .0      .0   100*    28.3    18.1   156
 SOUTH BRUSH CREEK        8440      .0      .0   100*    36.4    28.5   128
 TOWER                   10500      .0      .0   100*    90.0    55.4   162
 WEBBER SPRINGS           9250      .0      .0   100*    53.4    39.0   137
 WILLOW CREEK PASS        9540      .0      .0   100*    35.4    24.3   146
                                                -----                  -----
                Basin wide percent of average       *                   145


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240      .0      .0   100*    49.8    36.2   138
 CASPER MTN.              7900      .0      .0   100*    27.4    28.4    96
 DEADMAN HILL            10220      .0      .0   100*    38.4    29.3   131
 DEER PARK                9700      .0      .0   100*    37.0    35.7   104
 LAPRELE CREEK            8375      .0      .0   100*    25.5    25.5   100
 RENO HILL                8400      .0      .0   100*    30.8    29.3   105
 ROACH                    9700      .0      .0   100*    40.3    31.3   129
 SAND LAKE               10050      .0      .0   100*    57.4    39.5   145
 SOUTH PASS               9040      .0      .0   100*    27.1    30.1    90
 WINDY PEAK               7900      .0      .0   100*    22.7    22.1   103
                                                -----                  -----
                Basin wide percent of average       *                   116


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M      .0      *      -M    23.8      *
 DIVIDE PEAK              8880      .0      .0   100*    44.2    31.3   141
 OLD BATTLE              10000      .0      .0   100*    70.3    48.7   144
 SANDSTONE RS             8150      -M      .0      *    42.3    28.7   147
 WHISKEY PARK             8950      .0      .0   100*    64.8    42.6   152
                                                -----                  -----
                Basin wide percent of average       *                   146


UPPER GREEN RIVER

 BIG SANDY OPENING        9080      .1      .0      *    27.0    22.7   119
 BLIND BULL SUM           8650      .0      .0   100*    37.4    32.2   116
 EAST RIM DIVIDE          7930      .2      .0      *    24.0    19.4   124
 ELKHART PARK G.S.        9400      .0      .0   100*    24.0    23.6   102
 GROS VENTRE SUMMIT       8750      .0      .0   100*    26.6    22.5   118
 GUNSIGHT PASS            9820      .0      -M      *    32.6      -M      *
 KENDALL R.S.             7740      .0      .0   100*    24.9    22.1   113
 LOOMIS PARK              8240      .1      .0      *    34.2    26.5   129
 NEW FORK LAKE            8340      .2      .0      *    19.4    19.9    97
 POCKET CREEK             9360      .0      -M      *    25.2      -M      *
 SNIDER BASIN             8060      .0      .0   100*    28.9    23.2   125
 SPRING CREEK DIVIDE      9000      -M      .0      *      -M    37.0      *
 TRIPLE PEAK              8500      .0      .0   100*    52.2    36.3   144
                                                -----                  -----
                Basin wide percent of average       *                   120


LOWER GREEN RIVER

 HAMS FORK                7840      .2      .0      *    25.6    20.3   126
 HEWINTA                  9519      .0      .0   100*      -M    25.2      *
 HICKERSON PARK           9145      .0      .0   100*      -M    17.2      *
 HOLE-IN-ROCK             9150      .3      .0      *      -M    17.1      *
 INDIAN CREEK             9425      .2      .0      *    41.8    36.1   116
 KELLEY R.S.              8180      .0      .0   100*    37.2    29.5   126
 STEEL CREEK PARK        10200      .0      .0   100*      -M    28.3      *
                                                -----                  -----
                Basin wide percent of average       *                   122*


UPPER BEAR RIVER

 BUG LAKE                 7950      .0      .0   100*    45.4    28.3   160
 HAYDEN FORK              9212      .0      .0   100*    48.0    32.9   146
 KELLEY R.S.              8180      .0      .0   100*    37.2    29.5   126
 LILY LAKE                9156      .0      .0   100*      -M    28.3      *
 MONTE CRISTO             8960      .0      .0   100*    58.2    37.6   155
 SALT RIVER SUMMIT        7760      .0      .0   100*    33.3    27.5   121
 TRIAL LAKE               9992      .1      .0      *    53.0    38.7   137
                                                -----                  -----
                Basin wide percent of average       *                   141

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


 -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.