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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 SATURDAY: MAY 28 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    11.2      .5  2240*    35.6    26.8   133
 COTTONWOOD CREEK         7670    30.0     7.3   411     49.7    35.4   140
 GRAND TARGHEE            9260    69.5      -M      *      -M      -M      *
 GRANITE CREEK            6770    13.8     2.5   552     33.6    24.6   137
 GRASSY LAKE              7265    35.4    17.4   203     56.5    44.6   127
 GROS VENTRE SUMMIT       8750    16.4     5.3   309     23.1    17.4   133
 GUNSIGHT PASS            9820      -M      -M      *    27.3      -M      *
 LEWIS LAKE DIVIDE        7850    44.8    20.9   214     50.0    45.0   111
 PHILLIPS BENCH           8200    37.8    16.5   229     47.3    36.2   131
 SALT RIVER SUMMIT        7760     9.6      .0      *    28.9    23.8   121
 SNAKE RIVER STATION      6920      -M      .0      *    36.4    28.1   130
 SPRING CREEK DIVIDE      9000    42.1    17.6   239     43.6    32.8   133
 THUMB DIVIDE             7980    15.3     3.8   403     29.8    24.5   122
 TOGWOTEE PASS            9580    41.4    23.7   175     44.8    32.3   139
 TWO OCEAN PLATEAU        9240    53.3    26.9   198     44.6    35.8   125
 WILLOW CREEK             8380    41.4    17.2   241     58.1    42.1   138
                                                -----                  -----
                Basin wide percent of average    246                    130


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    33.3    22.1   151     36.2    26.6   136
 BLACK BEAR               8170    51.6    29.4   176     61.2    49.8   123
 CANYON                   7870      -M     2.6      *    26.5    20.2   131
 FISHER CREEK             9100    54.1    31.8   170     55.5    46.1   120
 MADISON PLATEAU          7750    29.6    11.6   255     44.2    33.8   131
 NORTHEAST ENTRANCE       7350      .5      .7    71*    22.8    17.2   133
 PARKER PEAK              9400    39.8    20.4   195     40.9    22.7   180
 SYLVAN LAKE              8420      -M    14.0      *    40.9    28.4   144
 THUMB DIVIDE             7980    15.3     3.8   403     29.8    24.5   122
 TWO OCEAN PLATEAU        9240    53.3    26.9   198     44.6    35.8   125
 WHISKEY CREEK            6800    12.6     2.7   467     33.0    26.9   123
 WHITE MILL               8700    35.1    19.9   176     40.0    34.7   115
 WOLVERINE                7650      -M      .2      *    21.4    17.9   120
                                                -----                  -----
                Basin wide percent of average    192                    129


WIND RIVER

 BURROUGHS CREEK          8750    19.7     5.1   386     27.3    22.2   123
 CASTLE CREEK             8400      .0      -M      *    13.8      -M      *
 COLD SPRINGS             9630     9.4     1.2   783     18.3    16.7   110
 DEER PARK                9700    23.3    11.3   206     31.6    30.5   104
 HOBBS PARK              10100    24.2    11.8   205     25.3    20.6   123
 LITTLE WARM              9370    15.3     3.0   510     21.0    19.7   107
 SOUTH PASS               9040    18.7     8.3   225     23.6    25.7    92
 ST. LAWRENCE ALT         8620      .3      .9    33     17.6    14.9   118
 TOGWOTEE PASS            9580    41.4    23.7   175     44.8    32.3   139
 TOWNSEND CREEK           8700     6.4     2.4   267     20.1    18.5   109
                                                -----                  -----
                Basin wide percent of average    234                    114


BIGHORN BASIN

 BALD MTN.                9380    39.0    18.6   210     32.4    24.9   130
 BEAR TRAP MEADOW         8200     7.1      .0      *    17.9    13.8   130
 BLACKWATER               9780    41.6    26.7   156     40.3    28.4   142
 BONE SPRINGS DIV         9350    31.7    10.8   294     28.3    21.9   129
 EVENING STAR             9200    40.9    28.5   144     50.3    33.8   149
 GRAVE SPRINGS            8550    11.7     2.5   468     19.1    15.8   121
 KIRWIN                   9550    17.9     7.1   252     23.1    17.1   135
 MARQUETTE                8760    12.8      -M      *    19.0    17.5   109
 MIDDLE POWDER            7760    12.0     4.5   267     20.5    18.7   110
 OWL CREEK                8975      .5      .8    63     13.3    10.7   124
 POWDER RIVER PASS        9480    22.0     3.4   647     29.0    19.2   151
 SHELL CREEK              9580    27.7    12.4   223     27.6    20.1   137
 SYLVAN LAKE              8420      -M    14.0      *    40.9    28.4   144
 SYLVAN ROAD              7120      .5      .3   167*    30.6    23.0   133
 TIMBER CREEK             7950     1.3     1.0   130     14.9    14.0   106
 YOUNTS PEAK              8350    20.0     9.5   211     24.7    21.7   114
                                                -----                  -----
                Basin wide percent of average    217                    131


SHOSHONE RIVER

 BLACKWATER               9780    41.6    26.7   156     40.3    28.4   142
 EVENING STAR             9200    40.9    28.5   144     50.3    33.8   149
 KIRWIN                   9550    17.9     7.1   252     23.1    17.1   135
 MARQUETTE                8760    12.8      -M      *    19.0    17.5   109
 SYLVAN LAKE              8420      -M    14.0      *    40.9    28.4   144
 SYLVAN ROAD              7120      .5      .3   167*    30.6    23.0   133
 YOUNTS PEAK              8350    20.0     9.5   211     24.7    21.7   114
                                                -----                  -----
                Basin wide percent of average    168                    135


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     7.1      .0      *    17.9    13.8   130
 BIG GOOSE                7990    12.9     4.9   263     22.9    16.1   142
 BONE SPRINGS DIV         9350    31.7    10.8   294     28.3    21.9   129
 BURGESS JUNCTION         7880    14.9     4.7   317     24.5    18.2   135
 CLOUD PEAK RESERVOIR     9860    25.8     9.9   261     27.7    21.2   131
 DOME LAKE                8880    19.5     4.5   433     25.2    20.2   125
 GRAVE SPRINGS            8550    11.7     2.5   468     19.1    15.8   121
 HANSEN SAWMILL           8360     6.2      .5  1240*    17.4    13.7   127
 LITTLE GOOSE             8870    17.1      -M      *    26.7      -M      *
 MIDDLE POWDER            7760    12.0     4.5   267     20.5    18.7   110
 POWDER RIVER PASS        9480    22.0     3.4   647     29.0    19.2   151
 SOLDIER PARK             8720     9.5      -M      *    18.1      -M      *
 SUCKER CREEK             8880    23.0     5.2   442     30.2    21.1   143
 TIE CREEK                6870     2.4      .0      *    23.3    16.8   139
                                                -----                  -----
                Basin wide percent of average    372                    132


BELLE FOURCHE

 BLIND PARK               6890      .0      .0   100*    27.4    17.4   157
 COLE CANYON              5910      .2      .0      *    23.3    12.5   186
 NORTH RAPID CREEK        6130      .0      .0   100*    23.3    13.7   170
                                                -----                  -----
                Basin wide percent of average       *                   170


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    28.4     3.3   861     46.4    26.5   175
 COLUMBINE                9160    27.9     4.0   698     48.5    31.9   152
 DIVIDE PEAK              8880    24.2     5.5   440     40.8    27.2   150
 ELK RIVER                8700    18.2     2.2   827     37.4    25.7   146
 JOE WRIGHT              10120    52.3    19.2   272     53.5    34.4   156
 NORTH FRENCH CREEK      10130    64.6    26.8   241       -M    33.8      *
 OLD BATTLE              10000    59.3    28.5   208     66.2    43.8   151
 SAGE CREEK BASIN         7850      .0     3.2     0     25.8    15.8   163
 SOUTH BRUSH CREEK        8440      -M     2.5      *    33.5    23.3   144
 TOWER                   10500    79.7    45.7   174     70.2    49.5   142
 WEBBER SPRINGS           9250    30.7     9.0   341     50.4    34.3   147
 WILLOW CREEK PASS        9540    25.2     4.9   514     28.8    18.4   157
                                                -----                  -----
                Basin wide percent of average    270                    152


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240      -M    14.4      *    46.6    30.7   152
 CASPER MTN.              7900     6.0     5.6   107     22.7    23.5    97
 DEADMAN HILL            10220    32.0    13.2   242     34.8    24.3   143
 DEER PARK                9700    23.3    11.3   206     31.6    30.5   104
 LAPRELE CREEK            8375     5.3     1.2   442     21.5    19.7   109
 RENO HILL                8400    13.3     4.6   289     26.3    24.3   108
 ROACH                    9700    24.8     7.6   326     35.4    26.0   136
 SAND LAKE               10050    52.9    28.9   183     52.5    33.8   155
 SOUTH PASS               9040    18.7     8.3   225     23.6    25.7    92
 WINDY PEAK               7900      .0      .3     0*    19.2    16.6   116
                                                -----                  -----
                Basin wide percent of average    218                    123


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M      .0      *    25.4    20.7   123
 DIVIDE PEAK              8880    24.2     5.5   440     40.8    27.2   150
 OLD BATTLE              10000    59.3    28.5   208     66.2    43.8   151
 SANDSTONE RS             8150     9.3      .6  1550*    37.0    24.5   151
 WHISKEY PARK             8950      -M    17.1      *    58.6    37.4   157
                                                -----                  -----
                Basin wide percent of average    268*                   148


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    12.7     3.3   385     22.2    18.3   121
 BLIND BULL SUM           8650    43.4    19.9   218     31.6    27.8   114
 EAST RIM DIVIDE          7930      .0     3.4     0     19.2    15.8   122
 ELKHART PARK G.S.        9400    13.3     4.8   277     19.5    18.7   104
 GROS VENTRE SUMMIT       8750    16.4     5.3   309     23.1    17.4   133
 GUNSIGHT PASS            9820      -M      -M      *    27.3      -M      *
 KENDALL R.S.             7740     3.1      .0      *    22.8    18.4   124
 LOOMIS PARK              8240    14.5     4.2   345     29.9    22.2   135
 NEW FORK LAKE            8340     3.6      .0      *    16.3    15.6   104
 POCKET CREEK             9360    13.3      -M      *    21.0      -M      *
 SNIDER BASIN             8060    10.8     1.5   720     26.0    20.2   129
 SPRING CREEK DIVIDE      9000    42.1    17.6   239     43.6    32.8   133
 TRIPLE PEAK              8500    32.5     7.9   411     46.0    31.6   146
                                                -----                  -----
                Basin wide percent of average    283                    126


LOWER GREEN RIVER

 HAMS FORK                7840      .7      .0      *    22.1    16.7   132
 HEWINTA                  9519    10.4     1.1   945*    27.2    20.0   136
 HICKERSON PARK           9145      .0      .2     0*    17.1    12.3   139
 HOLE-IN-ROCK             9150      .2      .1   200*    19.1    12.0   159
 INDIAN CREEK             9425    37.4    17.1   219     36.9    32.2   115
 KELLEY R.S.              8180    16.7     3.3   506     32.5    25.9   125
 STEEL CREEK PARK        10200    28.2    13.6   207     31.8    22.9   139
                                                -----                  -----
                Basin wide percent of average    264*                   131


UPPER BEAR RIVER

 BUG LAKE                 7950    29.1     4.1   710     39.9    24.8   161
 HAYDEN FORK              9212    16.5     2.4   688     41.7    28.1   148
 KELLEY R.S.              8180    16.7     3.3   506     32.5    25.9   125
 LILY LAKE                9156    21.4     2.3   930     32.9    23.8   138
 MONTE CRISTO             8960    47.0    15.1   311     51.5    33.7   153
 SALT RIVER SUMMIT        7760     9.6      .0      *    28.9    23.8   121
 TRIAL LAKE               9992    51.2    16.8   305     47.1    32.9   143
                                                -----                  -----
                Basin wide percent of average    435                    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.