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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 3:38a, 5/22/18
Temperature 50.6°F
Wind 0.0 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 FRIDAY: MAY 21 , 2010
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030      .0     4.3     0     16.1    26.1    62
 COTTONWOOD CREEK         7670    11.7    11.5   102     28.3    34.5    82
 GRAND TARGHEE            9260    43.4      -M      *    35.6      -M      *
 GRANITE CREEK            6770      .0     5.9     0     15.8    24.0    66
 GRASSY LAKE              7265    13.6    23.3    58     31.5    43.5    72
 GROS VENTRE SUMMIT       8750     5.0     8.2    61     12.3    16.7    74
 GUNSIGHT PASS            9820    10.7      -M      *    15.1      -M      *
 LEWIS LAKE DIVIDE        7850    13.5    26.2    52     26.3    44.0    60
 PHILLIPS BENCH           8200    12.8    21.4    60     24.9    35.4    70
 SALT RIVER SUMMIT        7760     1.2     2.5    48     16.4    23.2    71
 SNAKE RIVER STATION      6920      .0     3.1     0     19.7    27.3    72
 SPRING CREEK DIVIDE      9000    20.6    22.3    92     23.7    32.1    74
 THUMB DIVIDE             7980      .1     7.5     1     16.6    23.8    70
 TOGWOTEE PASS            9580    22.8    26.3    87       -M    31.4      *
 TWO OCEAN PLATEAU        9240    24.1    29.6    81     22.2    34.8    64
 WILLOW CREEK             8380    19.0    22.5    84     36.0    40.9    88
                                                -----                  -----
                Basin wide percent of average     67                     71


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    16.8    24.4    69     18.2    25.8    71
 BLACK BEAR               8170    23.5    34.5    68     32.0    48.7    66
 CANYON                   7870     2.4     5.2    46     14.4    19.4    74
 FISHER CREEK             9100    24.4    35.0    70     29.8    44.9    66
 MADISON PLATEAU          7750    12.3    16.9    73     25.5    32.8    78
 NORTHEAST ENTRANCE       7350      .0     1.7     0     12.1    16.5    73
 PARKER PEAK              9400    18.0    23.1    78     17.3    21.8    79
 SYLVAN LAKE              8420    10.9    18.2    60     22.8    27.3    84
 THUMB DIVIDE             7980      .1     7.5     1     16.6    23.8    70
 TWO OCEAN PLATEAU        9240    24.1    29.6    81     22.2    34.8    64
 WHISKEY CREEK            6800     4.1     7.2    57     16.4    26.1    63
 WHITE MILL               8700    16.8    23.4    72     20.9    33.7    62
 WOLVERINE                7650      .0     1.7     0      9.8    17.2    57
                                                -----                  -----
                Basin wide percent of average     67                     69


WIND RIVER

 BURROUGHS CREEK          8750     9.3     8.8   106     13.2    21.4    62
 COLD SPRINGS             9630     7.4     2.3   322     18.4    16.0   115
 DEER PARK                9700    21.6    16.4   132     28.1    29.5    95
 HOBBS PARK              10100    25.8    15.5   166     27.6    19.6   141
 LITTLE WARM              9370     8.5     5.9   144     14.5    18.9    77
 SOUTH PASS               9040    17.9    11.6   154     26.0    25.0   104
 ST. LAWRENCE ALT         8620     6.8     2.2   309     19.5    14.2   137
 TOGWOTEE PASS            9580    22.8    26.3    87       -M    31.4      *
 TOWNSEND CREEK           8700    14.2     4.3   330     24.8    17.7   140
                                                -----                  -----
                Basin wide percent of average    144                    106


BIGHORN BASIN

 BALD MTN.                9380    17.1    22.0    78     16.1    24.0    67
 BEAR TRAP MEADOW         8200     1.2      .1  1200*    12.9    13.0    99
 BLACKWATER               9780    22.0    28.7    77     22.3    27.3    82
 BONE SPRINGS DIV         9350    12.9    14.6    88     15.5    20.9    74
 EVENING STAR             9200    18.5    31.3    59     26.4    32.7    81
 GRAVE SPRINGS            8550     9.5     5.2   183     17.4    15.1   115
 KIRWIN                   9550    11.6    10.0   116     16.1    16.3    99
 MARQUETTE                8760    12.7     7.8   163     17.7    16.5   107
 MIDDLE POWDER            7760    10.6     8.5   125     13.6    18.0    76
 OWL CREEK                8975      .3     1.6    19     11.6    10.0   116
 POWDER RIVER PASS        9480     6.0     6.4    94     15.3    18.3    84
 SHELL CREEK              9580    14.1    15.1    93     16.4    19.2    85
 SYLVAN LAKE              8420    10.9    18.2    60     22.8    27.3    84
 SYLVAN ROAD              7120      .0     1.4     0     16.3    22.3    73
 TIMBER CREEK             7950     2.8     1.7   165     14.1    13.0   108
 YOUNTS PEAK              8350     9.8    13.5    73     13.3    20.8    64
                                                -----                  -----
                Basin wide percent of average     86                     85


SHOSHONE RIVER

 BLACKWATER               9780    22.0    28.7    77     22.3    27.3    82
 EVENING STAR             9200    18.5    31.3    59     26.4    32.7    81
 KIRWIN                   9550    11.6    10.0   116     16.1    16.3    99
 MARQUETTE                8760    12.7     7.8   163     17.7    16.5   107
 SYLVAN LAKE              8420    10.9    18.2    60     22.8    27.3    84
 SYLVAN ROAD              7120      .0     1.4     0     16.3    22.3    73
 YOUNTS PEAK              8350     9.8    13.5    73     13.3    20.8    64
                                                -----                  -----
                Basin wide percent of average     77                     83


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     1.2      .1  1200*    12.9    13.0    99
 BIG GOOSE                7990    11.4     7.9   144     18.8    15.3   123
 BONE SPRINGS DIV         9350    12.9    14.6    88     15.5    20.9    74
 BURGESS JUNCTION         7880    12.2     8.1   151     16.7    17.5    95
 CLOUD PEAK RESERVOIR     9860    17.7    13.4   132     20.0    20.1   100
 DOME LAKE                8880    12.1     8.5   142     19.7    19.3   102
 GRAVE SPRINGS            8550     9.5     5.2   183     17.4    15.1   115
 HANSEN SAWMILL           8360     2.5     1.2   208     14.3    12.9   111
 MIDDLE POWDER            7760    10.6     8.5   125     13.6    18.0    76
 POWDER RIVER PASS        9480     6.0     6.4    94     15.3    18.3    84
 SUCKER CREEK             8880    15.7     8.5   185     21.8    20.2   108
 TIE CREEK                6870     3.5      .6   583*    18.8    16.0   118
                                                -----                  -----
                Basin wide percent of average    139                     99


BELLE FOURCHE

 BLIND PARK               6890      .0      .0   100*    18.6    16.5   113
 COLE CANYON              5910      .0      .3     0*    17.9    11.7   153
 NORTH RAPID CREEK        6130      .0      .2     0*    17.2    13.1   131
                                                -----                  -----
                Basin wide percent of average      0*                   130


UPPER N. PLATTE RIVER

 COLUMBINE                9160    14.4     9.4   153     30.6    31.2    98
 DIVIDE PEAK              8880    16.7     9.9   169     31.5    26.4   119
 ELK RIVER                8700    10.1     5.1   198     27.2    25.0   109
 JOE WRIGHT              10120    25.6    22.5   114     31.4    33.2    95
 NORTH FRENCH CREEK      10130      -M    31.4      *      -M    32.8      *
 OLD BATTLE              10000    43.2    33.3   130     47.1    42.8   110
 SAGE CREEK BASIN         7850      .0     5.7     0     17.3    15.3   113
 SOUTH BRUSH CREEK        8440     8.6     4.8   179     27.1    22.5   120
 TOWER                   10500    45.1    50.0    90     45.3    48.5    93
 WEBBER SPRINGS           9250    23.6    14.6   162     36.7    33.5   110
 WILLOW CREEK PASS        9540    13.5     8.9   152     18.5    17.6   105
                                                -----                  -----
                Basin wide percent of average    122                    106


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    24.3    20.0   122     30.2    29.8   101
 CASPER MTN.              7900    12.2     9.2   133     21.2    22.5    94
 DEADMAN HILL            10220      -M    16.5      *      -M    23.4      *
 DEER PARK                9700    21.6    16.4   132     28.1    29.5    95
 LAPRELE CREEK            8375     2.2     2.5    88     19.3    18.9   102
 RENO HILL                8400    16.2     7.6   213     26.9    23.3   115
 ROACH                    9700    21.7    11.1   195     29.8    25.0   119
 SAND LAKE               10050    40.7    33.7   121     41.1    32.6   126
 SOUTH PASS               9040    17.9    11.6   154     26.0    25.0   104
 WINDY PEAK               7900     3.1     1.0   310     19.0    15.8   120
                                                -----                  -----
                Basin wide percent of average    141                    109


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100*    20.3    20.2   100
 DIVIDE PEAK              8880    16.7     9.9   169     31.5    26.4   119
 OLD BATTLE              10000    43.2    33.3   130     47.1    42.8   110
 SANDSTONE RS             8150      -M     2.2      *    23.2    23.8    97
 WHISKEY PARK             8950    27.7    23.5   118     40.8    36.6   111
                                                -----                  -----
                Basin wide percent of average    131                    109


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     4.7     7.0    67     13.0    17.6    74
 BLIND BULL SUM           8650    18.2    23.3    78     16.9    27.1    62
 EAST RIM DIVIDE          7930      .1     7.1     1      9.3    15.2    61
 ELKHART PARK G.S.        9400     5.1     7.8    65     11.8    17.9    66
 GROS VENTRE SUMMIT       8750     5.0     8.2    61     12.3    16.7    74
 GUNSIGHT PASS            9820    10.7      -M      *    15.1      -M      *
 KENDALL R.S.             7740      .1     1.1     9*    11.3    17.9    63
 LOOMIS PARK              8240      .1     7.7     1     13.2    21.6    61
 NEW FORK LAKE            8340      .0     1.9     0      8.8    14.9    59
 POCKET CREEK             9360     7.6      -M      *    14.5      -M      *
 SNIDER BASIN             8060     3.4     5.4    63     15.7    19.7    80
 SPRING CREEK DIVIDE      9000    20.6    22.3    92     23.7    32.1    74
 TRIPLE PEAK              8500    14.6    13.8   106     27.2    30.8    88
                                                -----                  -----
                Basin wide percent of average     68                     70


LOWER GREEN RIVER

 HAMS FORK                7840      .4      .0      *    14.2    16.2    88
 HEWINTA                  9519     5.3     2.9   183     17.8    19.4    92
 HICKERSON PARK           9145      .0     1.1     0     15.4    11.7   132
 HOLE-IN-ROCK             9150      .0      .9     0     15.2    11.3   135
 INDIAN CREEK             9425    19.3    21.4    90     22.6    31.4    72
 KELLEY R.S.              8180     5.3     7.0    76     17.6    25.3    70
 STEEL CREEK PARK        10200    20.9    16.8   124     22.3    22.1   101
                                                -----                  -----
                Basin wide percent of average    102                     91


UPPER BEAR RIVER

 BUG LAKE                 7950     8.0     8.1    99     19.5    24.2    81
 HAYDEN FORK              9212     2.9     5.2    56     24.3    27.3    89
 KELLEY R.S.              8180     5.3     7.0    76     17.6    25.3    70
 LILY LAKE                9156     9.0     4.6   196     20.5    23.0    89
 MONTE CRISTO             8960    16.4    20.0    82     25.2    32.8    77
 SALT RIVER SUMMIT        7760     1.2     2.5    48     16.4    23.2    71
 TRIAL LAKE               9992    19.1    21.0    91     22.1    31.9    69
                                                -----                  -----
                Basin wide percent of average     90                     78

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


 -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.