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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

At 1:43p, 5/22/18
Temperature 65.9°F
Wind 7.0 mph


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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 WEDNESDAY: MAY 18 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    17.0     5.2   327     34.0    25.9   131
 COTTONWOOD CREEK         7670    32.7    12.5   262     46.9    34.2   137
 GRAND TARGHEE            9260    68.7      -M      *      -M      -M      *
 GRANITE CREEK            6770    18.9     6.7   282     33.1    23.8   139
 GRASSY LAKE              7265    41.5    24.7   168     55.0    43.3   127
 GROS VENTRE SUMMIT       8750    19.1     8.9   215     22.5    16.6   136
 GUNSIGHT PASS            9820      -M      -M      *    25.9      -M      *
 LEWIS LAKE DIVIDE        7850    52.0    27.3   190     49.1    43.8   112
 PHILLIPS BENCH           8200    40.9    22.5   182     45.7    35.1   130
 SALT RIVER SUMMIT        7760    13.9     3.4   409     27.8    23.1   120
 SNAKE RIVER STATION      6920      -M     4.2      *    35.3    27.2   130
 SPRING CREEK DIVIDE      9000    42.3    23.3   182     41.8    31.9   131
 THUMB DIVIDE             7980    20.5     8.4   244     28.6    23.7   121
 TOGWOTEE PASS            9580    41.4    26.8   154     43.4    31.2   139
 TWO OCEAN PLATEAU        9240    52.2    30.1   173     43.0    34.5   125
 WILLOW CREEK             8380    43.5    23.6   184     55.2    40.6   136
                                                -----                  -----
                Basin wide percent of average    195                    129


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    32.8    25.1   131     33.4    25.5   131
 BLACK BEAR               8170    53.2    35.3   151     58.3    48.4   120
 CANYON                   7870    18.2     5.9   308     25.0    19.3   130
 FISHER CREEK             9100    51.6    35.7   145     52.5    44.6   118
 MADISON PLATEAU          7750    33.0    18.0   183     41.3    32.5   127
 NORTHEAST ENTRANCE       7350     6.4     2.2   291     21.1    16.3   129
 PARKER PEAK              9400    38.3    23.6   162     34.3    21.6   159
 SYLVAN LAKE              8420    28.3    19.3   147     38.6    27.0   143
 THUMB DIVIDE             7980    20.5     8.4   244     28.6    23.7   121
 TWO OCEAN PLATEAU        9240    52.2    30.1   173     43.0    34.5   125
 WHISKEY CREEK            6800    17.7     8.2   216     30.9    25.9   119
 WHITE MILL               8700    36.2    23.9   151     38.2    33.5   114
 WOLVERINE                7650     8.2     2.0   410     19.9    17.0   117
                                                -----                  -----
                Basin wide percent of average    167                    126


WIND RIVER

 BURROUGHS CREEK          8750    22.4     9.6   233     26.4    21.2   125
 CASTLE CREEK             8400      .7      -M      *    12.6      -M      *
 COLD SPRINGS             9630     7.9     2.8   282     14.6    15.8    92
 DEER PARK                9700    20.4    17.1   119     27.2    29.3    93
 HOBBS PARK              10100    18.6    16.2   115     19.1    19.3    99
 LITTLE WARM              9370    17.2     6.8   253     20.6    18.7   110
 SOUTH PASS               9040    14.9    12.6   118     17.7    24.8    71
 ST. LAWRENCE ALT         8620      .0     2.9     0     13.4    14.0    96
 TOGWOTEE PASS            9580    41.4    26.8   154     43.4    31.2   139
 TOWNSEND CREEK           8700     3.6     5.0    72     14.9    17.5    85
                                                -----                  -----
                Basin wide percent of average    147                    103


BIGHORN BASIN

 BALD MTN.                9380    33.5    22.5   149     28.3    23.8   119
 BEAR TRAP MEADOW         8200     8.9      .4  2225*    14.7    12.8   115
 BLACKWATER               9780    39.0    28.8   135     37.6    27.0   139
 BONE SPRINGS DIV         9350    27.8    15.5   179     24.8    20.6   120
 EVENING STAR             9200    40.3    31.8   127     46.8    32.4   144
 GRAVE SPRINGS            8550    10.7     6.2   173     14.3    14.9    96
 KIRWIN                   9550    16.4    10.4   158     20.0    16.1   124
 MARQUETTE                8760     9.3      -M      *    13.8    16.2    85
 MIDDLE POWDER            7760    14.2     9.6   148     15.5    17.8    87
 OWL CREEK                8975     3.2     1.9   168     11.2     9.8   114
 POWDER RIVER PASS        9480    20.7     7.1   292     26.4    18.0   147
 SHELL CREEK              9580    24.4    15.8   154     24.0    19.0   126
 SYLVAN LAKE              8420    28.3    19.3   147     38.6    27.0   143
 SYLVAN ROAD              7120     5.8     2.0   290     28.9    22.1   131
 TIMBER CREEK             7950     3.3     1.9   174     12.0    12.8    94
 YOUNTS PEAK              8350    23.4    14.3   164     24.1    20.6   117
                                                -----                  -----
                Basin wide percent of average    160                    123


SHOSHONE RIVER

 BLACKWATER               9780    39.0    28.8   135     37.6    27.0   139
 EVENING STAR             9200    40.3    31.8   127     46.8    32.4   144
 KIRWIN                   9550    16.4    10.4   158     20.0    16.1   124
 MARQUETTE                8760     9.3      -M      *    13.8    16.2    85
 SYLVAN LAKE              8420    28.3    19.3   147     38.6    27.0   143
 SYLVAN ROAD              7120     5.8     2.0   290     28.9    22.1   131
 YOUNTS PEAK              8350    23.4    14.3   164     24.1    20.6   117
                                                -----                  -----
                Basin wide percent of average    144                    130


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     8.9      .4  2225*    14.7    12.8   115
 BIG GOOSE                7990    11.7     8.4   139     17.5    15.1   116
 BONE SPRINGS DIV         9350    27.8    15.5   179     24.8    20.6   120
 BURGESS JUNCTION         7880    14.1     8.9   158     18.7    17.3   108
 CLOUD PEAK RESERVOIR     9860    20.6    14.2   145     22.9    19.8   116
 DOME LAKE                8880    17.6     9.3   189     21.1    19.1   110
 GRAVE SPRINGS            8550    10.7     6.2   173     14.3    14.9    96
 HANSEN SAWMILL           8360     7.8     1.7   459     14.3    12.7   113
 LITTLE GOOSE             8870    14.7      -M      *    22.0      -M      *
 MIDDLE POWDER            7760    14.2     9.6   148     15.5    17.8    87
 POWDER RIVER PASS        9480    20.7     7.1   292     26.4    18.0   147
 SOLDIER PARK             8720     9.8      -M      *    15.0      -M      *
 SUCKER CREEK             8880    18.6     9.1   204     23.5    19.9   118
 TIE CREEK                6870     4.5     1.0   450     16.5    15.7   105
                                                -----                  -----
                Basin wide percent of average    194                    113


BELLE FOURCHE

 BLIND PARK               6890     1.9      .0      *    23.6    16.3   145
 COLE CANYON              5910      .0      .4     0*    18.4    11.5   160
 NORTH RAPID CREEK        6130      .0      .3     0*    18.5    12.9   143
                                                -----                  -----
                Basin wide percent of average    271*                   149


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    30.2     9.3   325     43.3    25.7   168
 COLUMBINE                9160    30.9    10.9   283     45.3    31.0   146
 DIVIDE PEAK              8880    26.7    11.0   243     38.7    26.2   148
 ELK RIVER                8700    21.2     6.0   353     35.0    24.8   141
 JOE WRIGHT              10120    49.5    23.1   214     49.9    32.9   152
 NORTH FRENCH CREEK      10130    60.5    32.2   188       -M    32.5      *
 OLD BATTLE              10000    57.1    34.3   166     62.8    42.6   147
 SAGE CREEK BASIN         7850     4.9     6.4    77     24.8    15.2   163
 SOUTH BRUSH CREEK        8440    16.4     5.5   298     31.7    22.3   142
 TOWER                   10500    74.0    50.7   146       -M    48.2      *
 WEBBER SPRINGS           9250    34.4    16.0   215     47.9    33.3   144
 WILLOW CREEK PASS        9540    24.4     9.9   246     26.4    17.4   152
                                                -----                  -----
                Basin wide percent of average    200                    150


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    38.5    21.3   181     42.3    29.6   143
 CASPER MTN.              7900     9.0    10.2    88     19.9    22.3    89
 DEADMAN HILL            10220    30.2    17.2   176     32.4    23.2   140
 DEER PARK                9700    20.4    17.1   119     27.2    29.3    93
 LAPRELE CREEK            8375     9.1     2.9   314     19.6    18.6   105
 RENO HILL                8400    16.4     8.4   195     24.8    23.0   108
 ROACH                    9700    24.9    12.0   208     32.7    24.8   132
 SAND LAKE               10050    49.7    34.5   144     48.9    32.3   151
 SOUTH PASS               9040    14.9    12.6   118     17.7    24.8    71
 WINDY PEAK               7900     3.9     1.2   325     17.9    15.6   115
                                                -----                  -----
                Basin wide percent of average    158                    116


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M      .0      *    23.1    20.0   116
 DIVIDE PEAK              8880    26.7    11.0   243     38.7    26.2   148
 OLD BATTLE              10000    57.1    34.3   166     62.8    42.6   147
 SANDSTONE RS             8150    14.1     2.8   504     34.8    23.6   147
 WHISKEY PARK             8950      -M    24.8      *    55.1    36.4   151
                                                -----                  -----
                Basin wide percent of average    204                    144


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    16.1     7.8   206     20.9    17.5   119
 BLIND BULL SUM           8650    44.8    24.0   187     31.1    26.9   116
 EAST RIM DIVIDE          7930     6.9     8.0    86     18.7    15.1   124
 ELKHART PARK G.S.        9400    16.0     8.5   188     18.9    17.7   107
 GROS VENTRE SUMMIT       8750    19.1     8.9   215     22.5    16.6   136
 GUNSIGHT PASS            9820      -M      -M      *    25.9      -M      *
 KENDALL R.S.             7740     9.0     2.1   429     22.3    17.7   126
 LOOMIS PARK              8240    19.6     8.5   231     29.4    21.4   137
 NEW FORK LAKE            8340     8.5     2.7   315     15.6    14.8   105
 POCKET CREEK             9360    14.8      -M      *    19.7      -M      *
 SNIDER BASIN             8060    15.7     6.3   249     24.4    19.6   124
 SPRING CREEK DIVIDE      9000    42.3    23.3   182     41.8    31.9   131
 TRIPLE PEAK              8500    36.2    15.2   238     44.8    30.6   146
                                                -----                  -----
                Basin wide percent of average    203                    126


LOWER GREEN RIVER

 HAMS FORK                7840     5.2      .0      *    19.6    16.1   122
 HEWINTA                  9519    11.6     3.5   331     25.2    19.3   131
 HICKERSON PARK           9145      .0     1.4     0     15.4    11.6   133
 HOLE-IN-ROCK             9150     1.6     1.2   133     17.0    11.2   152
 INDIAN CREEK             9425    36.2    22.4   162     34.5    31.3   110
 KELLEY R.S.              8180    18.5     7.8   237     30.5    25.1   122
 STEEL CREEK PARK        10200    26.4    17.4   152     29.4    21.9   134
                                                -----                  -----
                Basin wide percent of average    185                    126


UPPER BEAR RIVER

 BUG LAKE                 7950    30.3     9.2   329     37.0    24.0   154
 HAYDEN FORK              9212    19.7     6.1   323     39.6    27.1   146
 KELLEY R.S.              8180    18.5     7.8   237     30.5    25.1   122
 LILY LAKE                9156    22.1     5.3   417     31.0    22.8   136
 MONTE CRISTO             8960    45.3    21.1   215     48.0    32.6   147
 SALT RIVER SUMMIT        7760    13.9     3.4   409     27.8    23.1   120
 TRIAL LAKE               9992    49.9    21.9   228     44.7    31.7   141
                                                -----                  -----
                Basin wide percent of average    267                    139

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


 -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.