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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 FRIDAY: MAY 27 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    11.6     1.0  1160*    35.6    26.7   133
 COTTONWOOD CREEK         7670    30.0     7.8   385     49.2    35.3   139
 GRAND TARGHEE            9260    70.5      -M      *      -M      -M      *
 GRANITE CREEK            6770    14.1     3.0   470     33.5    24.5   137
 GRASSY LAKE              7265    35.7    18.2   196     56.5    44.4   127
 GROS VENTRE SUMMIT       8750    16.8     5.7   295     23.1    17.3   134
 GUNSIGHT PASS            9820      -M      -M      *    27.3      -M      *
 LEWIS LAKE DIVIDE        7850    45.3    21.6   210     50.0    44.9   111
 PHILLIPS BENCH           8200    37.8    17.2   220     47.3    36.1   131
 SALT RIVER SUMMIT        7760     9.7      .0      *    28.7    23.8   121
 SNAKE RIVER STATION      6920      -M      .0      *    36.3    28.0   130
 SPRING CREEK DIVIDE      9000    41.8    18.3   228     43.0    32.7   131
 THUMB DIVIDE             7980    15.3     4.3   356     29.5    24.4   121
 TOGWOTEE PASS            9580    41.4    24.1   172     44.7    32.2   139
 TWO OCEAN PLATEAU        9240    53.2    27.3   195     44.4    35.7   124
 WILLOW CREEK             8380    41.5    17.9   232     57.7    41.9   138
                                                -----                  -----
                Basin wide percent of average    237                    129


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    32.8    22.6   145     36.1    26.5   136
 BLACK BEAR               8170    51.2    30.2   170     60.7    49.7   122
 CANYON                   7870    13.4     2.9   462     25.8    20.1   128
 FISHER CREEK             9100    53.3    32.3   165     55.3    46.0   120
 MADISON PLATEAU          7750    29.3    12.3   238     43.8    33.7   130
 NORTHEAST ENTRANCE       7350      .5      .7    71*    22.7    17.1   133
 PARKER PEAK              9400    39.0    20.8   188     40.0    22.6   177
 SYLVAN LAKE              8420    28.2    14.5   194     40.1    28.3   142
 THUMB DIVIDE             7980    15.3     4.3   356     29.5    24.4   121
 TWO OCEAN PLATEAU        9240    53.2    27.3   195     44.4    35.7   124
 WHISKEY CREEK            6800    12.5     3.2   391     32.8    26.8   122
 WHITE MILL               8700    35.1    20.4   172     39.8    34.6   115
 WOLVERINE                7650     2.8      .4   700*    21.1    17.9   118
                                                -----                  -----
                Basin wide percent of average    191                    128


WIND RIVER

 BURROUGHS CREEK          8750    19.8     5.5   360     27.3    22.1   124
 CASTLE CREEK             8400      .0      -M      *    13.8      -M      *
 COLD SPRINGS             9630     9.6     1.2   800     18.2    16.7   109
 DEER PARK                9700    23.2    12.0   193     31.6    30.4   104
 HOBBS PARK              10100    24.2    12.3   197     25.3    20.5   123
 LITTLE WARM              9370    15.6     3.2   488     21.0    19.6   107
 SOUTH PASS               9040    18.9     8.4   225     23.6    25.6    92
 ST. LAWRENCE ALT         8620      .9      .9   100     17.6    14.8   119
 TOGWOTEE PASS            9580    41.4    24.1   172     44.7    32.2   139
 TOWNSEND CREEK           8700     6.7     2.5   268     20.1    18.4   109
                                                -----                  -----
                Basin wide percent of average    229                    115


BIGHORN BASIN

 BALD MTN.                9380    39.1    19.2   204     32.4    24.8   131
 BEAR TRAP MEADOW         8200     7.6      .1  7600*    17.9    13.7   131
 BLACKWATER               9780    40.5    27.0   150     39.5    28.2   140
 BONE SPRINGS DIV         9350    31.9    11.4   280     28.4    21.7   131
 EVENING STAR             9200    40.1    28.9   139     49.1    33.7   146
 GRAVE SPRINGS            8550    11.9     2.7   441     19.1    15.7   122
 KIRWIN                   9550    17.9     7.5   239     23.1    17.0   136
 MARQUETTE                8760    12.6      -M      *    18.9    17.4   109
 MIDDLE POWDER            7760    12.3     5.0   246     20.5    18.7   110
 OWL CREEK                8975     1.0      .9   111     13.3    10.7   124
 POWDER RIVER PASS        9480    22.1     3.6   614     28.9    19.0   152
 SHELL CREEK              9580    27.5    12.8   215     27.5    20.0   138
 SYLVAN LAKE              8420    28.2    14.5   194     40.1    28.3   142
 SYLVAN ROAD              7120      .0      .3     0*    29.9    22.9   131
 TIMBER CREEK             7950     2.4     1.1   218     14.9    13.8   108
 YOUNTS PEAK              8350    20.1    10.0   201     24.6    21.6   114
                                                -----                  -----
                Basin wide percent of average    209                    131


SHOSHONE RIVER

 BLACKWATER               9780    40.5    27.0   150     39.5    28.2   140
 EVENING STAR             9200    40.1    28.9   139     49.1    33.7   146
 KIRWIN                   9550    17.9     7.5   239     23.1    17.0   136
 MARQUETTE                8760    12.6      -M      *    18.9    17.4   109
 SYLVAN LAKE              8420    28.2    14.5   194     40.1    28.3   142
 SYLVAN ROAD              7120      .0      .3     0*    29.9    22.9   131
 YOUNTS PEAK              8350    20.1    10.0   201     24.6    21.6   114
                                                -----                  -----
                Basin wide percent of average    166                    133


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     7.6      .1  7600*    17.9    13.7   131
 BIG GOOSE                7990    13.2     5.4   244     22.9    16.0   143
 BONE SPRINGS DIV         9350    31.9    11.4   280     28.4    21.7   131
 BURGESS JUNCTION         7880    15.1     5.1   296     24.5    18.1   135
 CLOUD PEAK RESERVOIR     9860    25.7    10.5   245     27.7    21.1   131
 DOME LAKE                8880    19.6     4.9   400     25.2    20.1   125
 GRAVE SPRINGS            8550    11.9     2.7   441     19.1    15.7   122
 HANSEN SAWMILL           8360     6.9      .5  1380*    17.4    13.6   128
 LITTLE GOOSE             8870    17.3      -M      *    26.7      -M      *
 MIDDLE POWDER            7760    12.3     5.0   246     20.5    18.7   110
 POWDER RIVER PASS        9480    22.1     3.6   614     28.9    19.0   152
 SOLDIER PARK             8720     9.7      -M      *    18.2      -M      *
 SUCKER CREEK             8880    23.1     5.6   413     30.2    21.0   144
 TIE CREEK                6870     3.0      .0      *    23.3    16.7   140
                                                -----                  -----
                Basin wide percent of average    351                    133


BELLE FOURCHE

 BLIND PARK               6890      .0      .0   100*    27.4    17.3   158
 COLE CANYON              5910      .0      .0   100*    23.3    12.4   188
 NORTH RAPID CREEK        6130      .0      .0   100*    23.4    13.6   172
                                                -----                  -----
                Basin wide percent of average       *                   171


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    28.4     3.8   747     46.2    26.4   175
 COLUMBINE                9160    28.5     4.6   620     48.3    31.8   152
 DIVIDE PEAK              8880    25.1     6.0   418     40.8    27.1   151
 ELK RIVER                8700    18.1     2.4   754     37.0    25.6   145
 JOE WRIGHT              10120    52.1    19.7   264     53.1    34.2   155
 NORTH FRENCH CREEK      10130    64.8    27.5   236       -M    33.7      *
 OLD BATTLE              10000    59.0    29.2   202     65.9    43.7   151
 SAGE CREEK BASIN         7850      .0     3.5     0     25.8    15.7   164
 SOUTH BRUSH CREEK        8440    14.4     2.8   514     33.4    23.2   144
 TOWER                   10500    79.3    46.4   171     70.2    49.4   142
 WEBBER SPRINGS           9250    31.5     9.7   325     50.2    34.2   147
 WILLOW CREEK PASS        9540    25.6     5.4   474     28.8    18.3   157
                                                -----                  -----
                Basin wide percent of average    265                    152


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240      -M    15.1      *    46.6    30.6   152
 CASPER MTN.              7900     6.2     6.0   103     22.7    23.4    97
 DEADMAN HILL            10220    32.0    13.7   234     34.6    24.2   143
 DEER PARK                9700    23.2    12.0   193     31.6    30.4   104
 LAPRELE CREEK            8375     5.8     1.4   414     21.5    19.6   110
 RENO HILL                8400    13.6     4.9   278     26.3    24.2   109
 ROACH                    9700    24.9     8.0   311     35.2    25.9   136
 SAND LAKE               10050    52.9    29.6   179     52.4    33.6   156
 SOUTH PASS               9040    18.9     8.4   225     23.6    25.6    92
 WINDY PEAK               7900      .0      .4     0*    19.2    16.5   116
                                                -----                  -----
                Basin wide percent of average    210                    124


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M      .0      *    25.2    20.6   122
 DIVIDE PEAK              8880    25.1     6.0   418     40.8    27.1   151
 OLD BATTLE              10000    59.0    29.2   202     65.9    43.7   151
 SANDSTONE RS             8150    10.0      .8  1250*    36.7    24.4   150
 WHISKEY PARK             8950      -M    18.0      *    58.2    37.3   156
                                                -----                  -----
                Basin wide percent of average    261*                   148


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    12.7     3.8   334     22.1    18.2   121
 BLIND BULL SUM           8650    43.1    20.3   212     31.4    27.7   113
 EAST RIM DIVIDE          7930      .1     3.9     3     19.1    15.7   122
 ELKHART PARK G.S.        9400    13.6     5.2   262     19.5    18.6   105
 GROS VENTRE SUMMIT       8750    16.8     5.7   295     23.1    17.3   134
 GUNSIGHT PASS            9820      -M      -M      *    27.3      -M      *
 KENDALL R.S.             7740     3.8      .0      *    22.7    18.3   124
 LOOMIS PARK              8240    14.8     4.6   322     29.9    22.1   135
 NEW FORK LAKE            8340     4.3      .0      *    16.3    15.5   105
 POCKET CREEK             9360    13.2      -M      *    20.9      -M      *
 SNIDER BASIN             8060    10.7     2.0   535     25.6    20.2   127
 SPRING CREEK DIVIDE      9000    41.8    18.3   228     43.0    32.7   131
 TRIPLE PEAK              8500    32.1     8.7   369     45.7    31.5   145
                                                -----                  -----
                Basin wide percent of average    267                    125


LOWER GREEN RIVER

 HAMS FORK                7840     1.2      .0      *    22.0    16.7   132
 HEWINTA                  9519    11.1     1.3   854     27.2    19.9   137
 HICKERSON PARK           9145      .0      .2     0*    17.0    12.3   138
 HOLE-IN-ROCK             9150      .3      .2   150*    19.0    11.9   160
 INDIAN CREEK             9425    37.2    17.7   210     36.7    32.1   114
 KELLEY R.S.              8180    16.7     3.8   439     32.3    25.8   125
 STEEL CREEK PARK        10200    28.3    14.1   201     31.7    22.8   139
                                                -----                  -----
                Basin wide percent of average    254                    131


UPPER BEAR RIVER

 BUG LAKE                 7950    29.8     4.6   648     39.9    24.8   161
 HAYDEN FORK              9212    17.6     2.7   652     41.7    28.0   149
 KELLEY R.S.              8180    16.7     3.8   439     32.3    25.8   125
 LILY LAKE                9156    22.0     2.5   880     32.8    23.7   138
 MONTE CRISTO             8960    47.2    15.7   301     51.5    33.6   153
 SALT RIVER SUMMIT        7760     9.7      .0      *    28.7    23.8   121
 TRIAL LAKE               9992    51.2    17.4   294     46.9    32.8   143
                                                -----                  -----
                Basin wide percent of average    416                    142

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


 -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.