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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 10:38a, 5/21/18
Temperature 64.6°F
Wind 1.0 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 8 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    23.0     9.6   240     31.5    25.0   126
 COTTONWOOD CREEK         7670    35.7    17.1   209     45.6    32.9   139
 GRAND TARGHEE            9260    63.7      -M      *    46.1      -M      *
 GRANITE CREEK            6770    23.9    10.5   228     31.2    23.0   136
 GRASSY LAKE              7265    46.5    30.3   153     52.9    41.9   126
 GROS VENTRE SUMMIT       8750    18.5    11.8   157     19.9    15.8   126
 GUNSIGHT PASS            9820      -M      -M      *    22.7      -M      *
 LEWIS LAKE DIVIDE        7850    56.9    32.2   177     47.7    42.6   112
 PHILLIPS BENCH           8200    43.2    27.2   159     43.2    34.0   127
 SALT RIVER SUMMIT        7760    18.9     8.0   236     27.0    22.2   122
 SNAKE RIVER STATION      6920      -M     9.1      *    34.1    26.2   130
 SPRING CREEK DIVIDE      9000    45.1    27.2   166     40.6    30.9   131
 THUMB DIVIDE             7980    27.9    12.5   223     27.5    22.7   121
 TOGWOTEE PASS            9580    38.8    28.1   138     40.1    29.9   134
 TWO OCEAN PLATEAU        9240      -M    31.5      *      -M    33.1      *
 WILLOW CREEK             8380    48.4    28.5   170     53.5    39.0   137
                                                -----                  -----
                Basin wide percent of average    176                    128


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    33.9    25.9   131     32.8    24.4   134
 BLACK BEAR               8170      -M    38.5      *    57.1    47.0   121
 CANYON                   7870    20.8     9.1   229     23.9    18.3   131
 FISHER CREEK             9100    52.7    37.7   140     51.1    43.0   119
 MADISON PLATEAU          7750    36.6    22.2   165     40.3    31.2   129
 NORTHEAST ENTRANCE       7350    14.1     5.4   261     20.5    15.4   133
 PARKER PEAK              9400    38.9    24.5   159       -M    20.4      *
 SYLVAN LAKE              8420    33.0    22.3   148     37.4    25.7   146
 THUMB DIVIDE             7980    27.9    12.5   223     27.5    22.7   121
 TWO OCEAN PLATEAU        9240      -M    31.5      *      -M    33.1      *
 WHISKEY CREEK            6800    23.1    12.7   182     29.8    24.9   120
 WHITE MILL               8700    37.5    25.9   145     37.1    32.2   115
 WOLVERINE                7650    15.4     5.4   285     19.1    15.9   120
                                                -----                  -----
                Basin wide percent of average    164                    125


WIND RIVER

 BURROUGHS CREEK          8750    21.2    11.8   180     22.8    20.1   113
 CASTLE CREEK             8400     3.4      -M      *    10.9      -M      *
 COLD SPRINGS             9630     6.7     4.4   152     11.8    14.8    80
 DEER PARK                9700    21.7    16.5   132     26.4    27.8    95
 HOBBS PARK              10100    18.2    17.4   105     17.4    18.0    97
 LITTLE WARM              9370    14.9     9.3   160     16.9    17.7    95
 SOUTH PASS               9040    17.8    16.3   109     17.4    23.7    73
 ST. LAWRENCE ALT         8620      .6     5.1    12     10.0    12.9    78
 TOGWOTEE PASS            9580    38.8    28.1   138     40.1    29.9   134
 TOWNSEND CREEK           8700     7.2     7.4    97     13.8    16.4    84
                                                -----                  -----
                Basin wide percent of average    126                     97


BIGHORN BASIN

 BALD MTN.                9380    32.5    23.5   138     26.3    22.4   117
 BEAR TRAP MEADOW         8200     9.9     1.6   619     12.7    11.7   109
 BLACKWATER               9780    37.4    28.7   130     35.3    25.7   137
 BONE SPRINGS DIV         9350    28.2    17.4   162     23.1    19.3   120
 EVENING STAR             9200    41.9    33.3   126     44.8    31.0   145
 GRAVE SPRINGS            8550    11.7     9.6   122     12.8    14.0    91
 KIRWIN                   9550    16.4    12.4   132     18.0    15.0   120
 MARQUETTE                8760     6.8      -M      *    10.4    14.8    70
 MIDDLE POWDER            7760    14.4    12.8   113     14.6    16.7    87
 OWL CREEK                8975     4.1     3.3   124      9.2     8.9   103
 POWDER RIVER PASS        9480    20.4     9.4   217     24.3    16.7   146
 SHELL CREEK              9580    24.3    16.9   144     22.0    17.8   124
 SYLVAN LAKE              8420    33.0    22.3   148     37.4    25.7   146
 SYLVAN ROAD              7120    12.4     5.6   221     27.5    21.2   130
 TIMBER CREEK             7950     3.2     3.6    89      8.2    11.5    71
 YOUNTS PEAK              8350    23.2    17.2   135     21.6    19.5   111
                                                -----                  -----
                Basin wide percent of average    144                    119


SHOSHONE RIVER

 BLACKWATER               9780    37.4    28.7   130     35.3    25.7   137
 EVENING STAR             9200    41.9    33.3   126     44.8    31.0   145
 KIRWIN                   9550    16.4    12.4   132     18.0    15.0   120
 MARQUETTE                8760     6.8      -M      *    10.4    14.8    70
 SYLVAN LAKE              8420    33.0    22.3   148     37.4    25.7   146
 SYLVAN ROAD              7120    12.4     5.6   221     27.5    21.2   130
 YOUNTS PEAK              8350    23.2    17.2   135     21.6    19.5   111
                                                -----                  -----
                Basin wide percent of average    137                    128


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     9.9     1.6   619     12.7    11.7   109
 BIG GOOSE                7990    12.8    10.4   123     15.7    13.9   113
 BONE SPRINGS DIV         9350    28.2    17.4   162     23.1    19.3   120
 BURGESS JUNCTION         7880    15.8    12.0   132     17.1    16.3   105
 CLOUD PEAK RESERVOIR     9860    21.9    15.6   140     21.3    18.3   116
 DOME LAKE                8880    19.1    12.0   159     19.3    17.8   108
 GRAVE SPRINGS            8550    11.7     9.6   122     12.8    14.0    91
 HANSEN SAWMILL           8360     9.4     3.7   254     12.2    11.7   104
 LITTLE GOOSE             8870    15.3      -M      *    20.1      -M      *
 MIDDLE POWDER            7760    14.4    12.8   113     14.6    16.7    87
 POWDER RIVER PASS        9480    20.4     9.4   217     24.3    16.7   146
 SOLDIER PARK             8720    11.2      -M      *    13.3      -M      *
 SUCKER CREEK             8880    18.9    11.7   162     21.3    18.5   115
 TIE CREEK                6870     7.7     2.6   296     15.0    14.5   103
                                                -----                  -----
                Basin wide percent of average    160                    111


BELLE FOURCHE

 BLIND PARK               6890     8.3     2.3   361     21.8    15.0   145
 COLE CANYON              5910     6.9     2.2   314     16.7    10.4   161
 NORTH RAPID CREEK        6130     3.2     1.7   188     17.3    12.1   143
                                                -----                  -----
                Basin wide percent of average    297                    149


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    32.4    14.1   230     42.6    24.5   174
 COLUMBINE                9160    38.8    17.5   222     44.6    30.0   149
 DIVIDE PEAK              8880    32.2    16.5   195     37.2    25.1   148
 ELK RIVER                8700    28.0    11.4   246     34.4    23.8   145
 JOE WRIGHT              10120    48.7    24.9   196     48.5    31.3   155
 NORTH FRENCH CREEK      10130    63.3    34.4   184     61.6    30.9   199
 OLD BATTLE              10000    57.5    37.1   155       -M    41.1      *
 SAGE CREEK BASIN         7850    13.5     9.6   141     24.2    14.6   166
 SOUTH BRUSH CREEK        8440    22.7     9.0   252     31.0    21.1   147
 TOWER                   10500    73.5    52.4   140       -M    46.6      *
 WEBBER SPRINGS           9250    39.5    22.3   177     46.5    32.1   145
 WILLOW CREEK PASS        9540    26.7    13.3   201     25.1    16.4   153
                                                -----                  -----
                Basin wide percent of average    182                    158


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    42.0    26.5   158     41.7    28.1   148
 CASPER MTN.              7900    12.4    15.0    83     18.8    20.7    91
 DEADMAN HILL            10220    31.2    19.4   161     31.1    22.0   141
 DEER PARK                9700    21.7    16.5   132     26.4    27.8    95
 LAPRELE CREEK            8375    12.6     5.3   238     18.3    17.4   105
 RENO HILL                8400    17.7    12.5   142     22.9    21.4   107
 ROACH                    9700    28.0    16.5   170     31.6    23.4   135
 SAND LAKE               10050    50.1    36.8   136     47.9    30.6   157
 SOUTH PASS               9040    17.8    16.3   109     17.4    23.7    73
 WINDY PEAK               7900     7.7     3.2   241     17.1    14.4   119
                                                -----                  -----
                Basin wide percent of average    144                    119


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M     2.6      *    22.3    19.2   116
 DIVIDE PEAK              8880    32.2    16.5   195     37.2    25.1   148
 OLD BATTLE              10000    57.5    37.1   155       -M    41.1      *
 SANDSTONE RS             8150    22.7     6.6   344     34.0    22.7   150
 WHISKEY PARK             8950      -M    29.2      *    54.0    35.0   154
                                                -----                  -----
                Basin wide percent of average    187                    145


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    17.7    11.5   154     19.9    16.6   120
 BLIND BULL SUM           8650    45.3    26.7   170     29.9    25.9   115
 EAST RIM DIVIDE          7930    13.4    11.5   117     17.3    14.4   120
 ELKHART PARK G.S.        9400    17.5    11.4   154     17.8    16.7   107
 GROS VENTRE SUMMIT       8750    18.5    11.8   157     19.9    15.8   126
 GUNSIGHT PASS            9820      -M      -M      *    22.7      -M      *
 KENDALL R.S.             7740    12.4     7.1   175     20.2    17.0   119
 LOOMIS PARK              8240    23.2    12.2   190     27.2    20.5   133
 NEW FORK LAKE            8340    13.0     6.3   206     14.4    14.0   103
 POCKET CREEK             9360      -M      -M      *    18.7      -M      *
 SNIDER BASIN             8060    20.5    10.5   195     23.4    19.0   123
 SPRING CREEK DIVIDE      9000    45.1    27.2   166     40.6    30.9   131
 TRIPLE PEAK              8500    41.0    20.9   196     43.4    29.5   147
                                                -----                  -----
                Basin wide percent of average    170                    124


LOWER GREEN RIVER

 HAMS FORK                7840    13.0     3.6   361     19.3    15.4   125
 HEWINTA                  9519    15.0     6.9   217     23.6    18.5   128
 HICKERSON PARK           9145     1.4     3.9    36     13.3    10.8   123
 HOLE-IN-ROCK             9150     6.6     3.2   206     15.0    10.3   146
 INDIAN CREEK             9425    39.8    26.4   151     33.8    30.2   112
 KELLEY R.S.              8180    23.4    11.8   198     29.9    24.2   124
 STEEL CREEK PARK        10200    25.6    18.9   135     27.3    21.0   130
                                                -----                  -----
                Basin wide percent of average    167                    124


UPPER BEAR RIVER

 BUG LAKE                 7950    35.7    14.7   243     36.4    23.1   158
 HAYDEN FORK              9212    26.8    10.3   260     38.1    26.0   147
 KELLEY R.S.              8180    23.4    11.8   198     29.9    24.2   124
 LILY LAKE                9156    25.6     8.8   291     29.0    21.9   132
 MONTE CRISTO             8960    49.4    25.9   191     47.0    31.3   150
 SALT RIVER SUMMIT        7760    18.9     8.0   236     27.0    22.2   122
 TRIAL LAKE               9992      -M    25.4      *    42.7    30.4   140
                                                -----                  -----
                Basin wide percent of average    226                    140

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


 -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.