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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 10:23p, 5/21/18
Temperature 56.7°F
Wind 2.0 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 SUNDAY: MAY 15 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    19.2     6.5   295     34.0    25.6   133
 COTTONWOOD CREEK         7670    35.0    13.9   252     46.9    33.9   138
 GRAND TARGHEE            9260    68.8      -M      *    45.9      -M      *
 GRANITE CREEK            6770    20.8     7.8   267     33.0    23.6   140
 GRASSY LAKE              7265    44.2    26.5   167     54.9    42.9   128
 GROS VENTRE SUMMIT       8750    19.6     9.9   198     22.5    16.4   137
 GUNSIGHT PASS            9820      -M      -M      *    25.6      -M      *
 LEWIS LAKE DIVIDE        7850    54.3    29.0   187     49.2    43.4   113
 PHILLIPS BENCH           8200    42.7    24.1   177     45.6    34.8   131
 SALT RIVER SUMMIT        7760    15.9     4.9   324     27.8    22.8   122
 SNAKE RIVER STATION      6920      -M     5.7      *    35.4    26.9   132
 SPRING CREEK DIVIDE      9000    43.6    24.7   177     41.8    31.6   132
 THUMB DIVIDE             7980    23.7     9.7   244     28.6    23.4   122
 TOGWOTEE PASS            9580    41.4    27.4   151     42.9    30.8   139
 TWO OCEAN PLATEAU        9240    52.2    30.7   170     42.9    34.1   126
 WILLOW CREEK             8380    46.7    25.3   185     55.1    40.1   137
                                                -----                  -----
                Basin wide percent of average    191                    130


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    33.7    25.5   132     33.4    25.2   133
 BLACK BEAR               8170    56.6    36.5   155     58.2    48.0   121
 CANYON                   7870    17.2     7.1   242     24.9    19.0   131
 FISHER CREEK             9100    52.3    36.6   143     52.4    44.1   119
 MADISON PLATEAU          7750    35.2    19.5   181     41.2    32.1   128
 NORTHEAST ENTRANCE       7350     8.8     3.3   267     21.1    16.0   132
 PARKER PEAK              9400    39.9    24.0   166       -M    21.2      *
 SYLVAN LAKE              8420    30.4    20.3   150     38.6    26.6   145
 THUMB DIVIDE             7980    23.7     9.7   244     28.6    23.4   122
 TWO OCEAN PLATEAU        9240    52.2    30.7   170     42.9    34.1   126
 WHISKEY CREEK            6800    19.7     9.8   201     31.0    25.6   121
 WHITE MILL               8700    36.9    24.7   149     38.1    33.1   115
 WOLVERINE                7650    10.8     3.2   338     19.9    16.7   119
                                                -----                  -----
                Basin wide percent of average    166                    125


WIND RIVER

 BURROUGHS CREEK          8750    22.8    10.4   219     26.2    20.9   125
 CASTLE CREEK             8400     1.8      -M      *    12.6      -M      *
 COLD SPRINGS             9630     8.4     3.3   255     14.6    15.5    94
 DEER PARK                9700    21.0    17.2   122     27.1    28.8    94
 HOBBS PARK              10100    18.8    16.7   113     18.9    18.9   100
 LITTLE WARM              9370    17.3     7.8   222     20.5    18.5   111
 SOUTH PASS               9040    15.8    14.1   112     17.6    24.5    72
 ST. LAWRENCE ALT         8620     1.2     3.7    32     13.4    13.7    98
 TOGWOTEE PASS            9580    41.4    27.4   151     42.9    30.8   139
 TOWNSEND CREEK           8700     4.8     5.7    84     14.6    17.2    85
                                                -----                  -----
                Basin wide percent of average    143                    104


BIGHORN BASIN

 BALD MTN.                9380    33.4    23.0   145     27.7    23.4   118
 BEAR TRAP MEADOW         8200     9.5      .7  1357     14.4    12.5   115
 BLACKWATER               9780    39.3    28.8   136     37.5    26.6   141
 BONE SPRINGS DIV         9350    28.2    16.2   174     24.1    20.3   119
 EVENING STAR             9200    42.0    32.5   129     46.8    32.0   146
 GRAVE SPRINGS            8550    10.7     7.9   135     13.8    14.7    94
 KIRWIN                   9550    17.2    11.0   156     19.9    15.8   126
 MARQUETTE                8760     9.3      -M      *    13.2    15.8    84
 MIDDLE POWDER            7760    14.5    11.1   131     15.3    17.5    87
 OWL CREEK                8975     3.7     2.3   161     10.6     9.5   112
 POWDER RIVER PASS        9480    20.8     8.1   257     25.8    17.6   147
 SHELL CREEK              9580    25.0    16.3   153     23.8    18.6   128
 SYLVAN LAKE              8420    30.4    20.3   150     38.6    26.6   145
 SYLVAN ROAD              7120     8.8     2.7   326     28.9    21.9   132
 TIMBER CREEK             7950     4.2     2.2   191     11.5    12.4    93
 YOUNTS PEAK              8350    24.3    15.4   158     24.1    20.3   119
                                                -----                  -----
                Basin wide percent of average    157                    123


SHOSHONE RIVER

 BLACKWATER               9780    39.3    28.8   136     37.5    26.6   141
 EVENING STAR             9200    42.0    32.5   129     46.8    32.0   146
 KIRWIN                   9550    17.2    11.0   156     19.9    15.8   126
 MARQUETTE                8760     9.3      -M      *    13.2    15.8    84
 SYLVAN LAKE              8420    30.4    20.3   150     38.6    26.6   145
 SYLVAN ROAD              7120     8.8     2.7   326     28.9    21.9   132
 YOUNTS PEAK              8350    24.3    15.4   158     24.1    20.3   119
                                                -----                  -----
                Basin wide percent of average    146                    131


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     9.5      .7  1357     14.4    12.5   115
 BIG GOOSE                7990    12.2     9.1   134     16.9    14.8   114
 BONE SPRINGS DIV         9350    28.2    16.2   174     24.1    20.3   119
 BURGESS JUNCTION         7880    14.8    10.2   145     18.2    17.0   107
 CLOUD PEAK RESERVOIR     9860    21.3    14.8   144     22.3    19.4   115
 DOME LAKE                8880    18.5    10.4   178     20.7    18.8   110
 GRAVE SPRINGS            8550    10.7     7.9   135     13.8    14.7    94
 HANSEN SAWMILL           8360     9.1     2.2   414     13.9    12.4   112
 LITTLE GOOSE             8870    15.1      -M      *    21.4      -M      *
 MIDDLE POWDER            7760    14.5    11.1   131     15.3    17.5    87
 POWDER RIVER PASS        9480    20.8     8.1   257     25.8    17.6   147
 SOLDIER PARK             8720    10.7      -M      *    14.5      -M      *
 SUCKER CREEK             8880    19.1    10.2   187     23.0    19.5   118
 TIE CREEK                6870     5.9     1.3   454     16.0    15.4   104
                                                -----                  -----
                Basin wide percent of average    181                    112


BELLE FOURCHE

 BLIND PARK               6890     4.5      .1  4500*    22.9    15.9   144
 COLE CANYON              5910     3.1      .8   388     17.9    11.2   160
 NORTH RAPID CREEK        6130      .0      .6     0*    17.9    12.7   141
                                                -----                  -----
                Basin wide percent of average    507*                   147


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    31.6    11.0   287     43.1    25.4   170
 COLUMBINE                9160    33.7    13.1   257     45.3    30.7   148
 DIVIDE PEAK              8880    29.5    12.8   230     38.2    25.9   147
 ELK RIVER                8700    23.9     7.6   314     34.9    24.5   142
 JOE WRIGHT              10120    49.9    23.8   210     49.9    32.5   154
 NORTH FRENCH CREEK      10130    61.7    33.2   186     61.6    32.0   193
 OLD BATTLE              10000    57.7    35.5   163     62.3    42.2   148
 SAGE CREEK BASIN         7850     7.5     7.4   101     24.3    15.0   162
 SOUTH BRUSH CREEK        8440    18.9     6.5   291     31.5    21.9   144
 TOWER                   10500    74.2    51.5   144     68.4    47.7   143
 WEBBER SPRINGS           9250    36.1    18.1   199     47.7    33.0   145
 WILLOW CREEK PASS        9540    25.8    11.2   230     26.3    17.1   154
                                                -----                  -----
                Basin wide percent of average    194                    153


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    39.6    23.1   171     42.3    29.2   145
 CASPER MTN.              7900    10.7    11.7    91     20.0    21.8    92
 DEADMAN HILL            10220    30.8    18.0   171     32.3    22.9   141
 DEER PARK                9700    21.0    17.2   122     27.1    28.8    94
 LAPRELE CREEK            8375    11.2     3.6   311     19.4    18.2   107
 RENO HILL                8400    17.8     9.7   184     24.6    22.5   109
 ROACH                    9700    26.4    13.4   197     32.6    24.4   134
 SAND LAKE               10050    50.1    35.5   141     48.7    31.8   153
 SOUTH PASS               9040    15.8    14.1   112     17.6    24.5    72
 WINDY PEAK               7900     5.4     1.7   318     17.9    15.2   118
                                                -----                  -----
                Basin wide percent of average    155                    118


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M      .6      *    22.4    19.8   113
 DIVIDE PEAK              8880    29.5    12.8   230     38.2    25.9   147
 OLD BATTLE              10000    57.7    35.5   163     62.3    42.2   148
 SANDSTONE RS             8150    16.3     3.8   429     34.2    23.4   146
 WHISKEY PARK             8950      -M    26.5      *    54.9    36.0   153
                                                -----                  -----
                Basin wide percent of average    199                    144


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    17.1     9.0   190     20.6    17.2   120
 BLIND BULL SUM           8650    44.8    24.9   180     31.1    26.6   117
 EAST RIM DIVIDE          7930     8.9     9.2    97     18.6    14.9   125
 ELKHART PARK G.S.        9400    16.8     9.4   179     18.7    17.4   107
 GROS VENTRE SUMMIT       8750    19.6     9.9   198     22.5    16.4   137
 GUNSIGHT PASS            9820      -M      -M      *    25.6      -M      *
 KENDALL R.S.             7740    10.4     3.7   281     22.1    17.5   126
 LOOMIS PARK              8240    21.8     9.7   225     29.2    21.2   138
 NEW FORK LAKE            8340    10.0     3.8   263     15.5    14.5   107
 POCKET CREEK             9360    15.7      -M      *    19.4      -M      *
 SNIDER BASIN             8060    17.8     7.7   231     24.5    19.4   126
 SPRING CREEK DIVIDE      9000    43.6    24.7   177     41.8    31.6   132
 TRIPLE PEAK              8500    38.5    17.1   225     44.8    30.3   148
                                                -----                  -----
                Basin wide percent of average    193                    127


LOWER GREEN RIVER

 HAMS FORK                7840     7.1     1.1   645*    19.6    15.9   123
 HEWINTA                  9519    13.3     4.5   296     24.7    19.0   130
 HICKERSON PARK           9145      .1     2.1     5     14.7    11.4   129
 HOLE-IN-ROCK             9150     4.1     1.7   241     16.4    10.9   150
 INDIAN CREEK             9425    38.5    23.7   162     34.5    31.0   111
 KELLEY R.S.              8180    19.9     9.1   219     30.5    24.9   122
 STEEL CREEK PARK        10200    26.3    18.1   145     28.8    21.6   133
                                                -----                  -----
                Basin wide percent of average    181                    126


UPPER BEAR RIVER

 BUG LAKE                 7950    32.8    10.9   301     36.9    23.8   155
 HAYDEN FORK              9212    22.4     7.3   307     39.2    26.8   146
 KELLEY R.S.              8180    19.9     9.1   219     30.5    24.9   122
 LILY LAKE                9156    23.5     6.3   373     30.5    22.6   135
 MONTE CRISTO             8960    47.1    22.7   207     47.7    32.2   148
 SALT RIVER SUMMIT        7760    15.9     4.9   324     27.8    22.8   122
 TRIAL LAKE               9992    50.1    23.2   216     44.1    31.3   141
                                                -----                  -----
                Basin wide percent of average    251                    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.