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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 11:53p, 5/21/18
Temperature 56.8°F
Wind 3.0 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 MONDAY: MAY 10 , 2010
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     3.8     9.1    42     16.0    25.1    64
 COTTONWOOD CREEK         7670    15.5    16.6    93     26.6    33.1    80
 GRAND TARGHEE            9260    44.7      -M      *    34.8      -M      *
 GRANITE CREEK            6770     4.0    10.1    40     14.9    23.1    65
 GRASSY LAKE              7265    20.6    29.8    69     30.9    42.0    74
 GROS VENTRE SUMMIT       8750     8.5    11.6    73     11.5    15.9    72
 GUNSIGHT PASS            9820    10.6      -M      *    14.0      -M      *
 LEWIS LAKE DIVIDE        7850    18.7    31.8    59     26.2    42.7    61
 PHILLIPS BENCH           8200    18.5    26.8    69     24.8    34.1    73
 SALT RIVER SUMMIT        7760     6.8     7.6    89     15.1    22.3    68
 SNAKE RIVER STATION      6920     1.0     8.7    11     19.5    26.3    74
 SPRING CREEK DIVIDE      9000    21.4    26.9    80     21.7    31.0    70
 THUMB DIVIDE             7980     7.7    12.1    64     16.5    22.8    72
 TOGWOTEE PASS            9580    22.9    28.0    82     20.7    30.0    69
 TWO OCEAN PLATEAU        9240    26.5    31.5    84     22.1    33.3    66
 WILLOW CREEK             8380    21.9    28.1    78     33.8    39.1    86
                                                -----                  -----
                Basin wide percent of average     71                     71


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    17.7    25.9    68     17.5    24.5    71
 BLACK BEAR               8170    28.2    38.3    74     31.4    47.1    67
 CANYON                   7870     7.7     8.9    87     14.1    18.4    77
 FISHER CREEK             9100    27.3    37.5    73     29.4    43.2    68
 MADISON PLATEAU          7750    17.0    21.9    78     24.8    31.4    79
 NORTHEAST ENTRANCE       7350     1.4     5.2    27     11.5    15.5    74
 PARKER PEAK              9400    21.9    24.4    90     16.6    20.5    81
 SYLVAN LAKE              8420    13.9    22.1    63     21.7    25.8    84
 THUMB DIVIDE             7980     7.7    12.1    64     16.5    22.8    72
 TWO OCEAN PLATEAU        9240    26.5    31.5    84     22.1    33.3    66
 WHISKEY CREEK            6800     9.7    12.4    78     16.2    25.0    65
 WHITE MILL               8700    19.6    25.9    76     20.3    32.3    63
 WOLVERINE                7650      .0     5.1     0      9.5    16.0    59
                                                -----                  -----
                Basin wide percent of average     73                     71


WIND RIVER

 BURROUGHS CREEK          8750    10.1    11.6    87     11.3    20.2    56
 COLD SPRINGS             9630     5.8     4.4   132     14.0    14.9    94
 DEER PARK                9700    19.0    16.4   116     24.1    28.0    86
 HOBBS PARK              10100    20.9    17.4   120     22.0    18.1   122
 LITTLE WARM              9370     8.4     9.1    92     12.3    17.8    69
 SOUTH PASS               9040    15.8    16.0    99     21.5    23.8    90
 ST. LAWRENCE ALT         8620     5.8     4.9   118     15.2    13.1   116
 TOGWOTEE PASS            9580    22.9    28.0    82     20.7    30.0    69
 TOWNSEND CREEK           8700    12.0     7.2   167     19.3    16.5   117
                                                -----                  -----
                Basin wide percent of average    105                     88


BIGHORN BASIN

 BALD MTN.                9380    17.3    23.5    74     14.9    22.5    66
 BEAR TRAP MEADOW         8200     4.1     1.6   256     11.2    11.8    95
 BLACKWATER               9780    21.7    28.7    76     20.6    25.8    80
 BONE SPRINGS DIV         9350    13.9    17.3    80     14.4    19.4    74
 EVENING STAR             9200    21.3    33.2    64     25.5    31.1    82
 GRAVE SPRINGS            8550    10.3     9.8   105     14.5    14.1   103
 KIRWIN                   9550    11.5    12.3    93     13.6    15.1    90
 MARQUETTE                8760     8.8    10.1    87     12.6    14.9    85
 MIDDLE POWDER            7760    12.4    12.7    98     12.0    16.8    71
 OWL CREEK                8975      .5     3.2    16      8.3     9.0    92
 POWDER RIVER PASS        9480     8.7     9.3    94     14.7    16.9    87
 SHELL CREEK              9580    16.1    16.8    96     15.5    17.9    87
 SYLVAN LAKE              8420    13.9    22.1    63     21.7    25.8    84
 SYLVAN ROAD              7120      .0     5.3     0     15.6    21.3    73
 TIMBER CREEK             7950     1.8     3.5    51      9.6    11.6    83
 YOUNTS PEAK              8350    12.3    17.0    72     12.5    19.6    64
                                                -----                  -----
                Basin wide percent of average     77                     81


SHOSHONE RIVER

 BLACKWATER               9780    21.7    28.7    76     20.6    25.8    80
 EVENING STAR             9200    21.3    33.2    64     25.5    31.1    82
 KIRWIN                   9550    11.5    12.3    93     13.6    15.1    90
 MARQUETTE                8760     8.8    10.1    87     12.6    14.9    85
 SYLVAN LAKE              8420    13.9    22.1    63     21.7    25.8    84
 SYLVAN ROAD              7120      .0     5.3     0     15.6    21.3    73
 YOUNTS PEAK              8350    12.3    17.0    72     12.5    19.6    64
                                                -----                  -----
                Basin wide percent of average     70                     79


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     4.1     1.6   256     11.2    11.8    95
 BIG GOOSE                7990    10.2    10.3    99     14.5    14.1   103
 BONE SPRINGS DIV         9350    13.9    17.3    80     14.4    19.4    74
 BURGESS JUNCTION         7880    13.2    11.9   111     15.0    16.4    91
 CLOUD PEAK RESERVOIR     9860    16.4    15.6   105     16.3    18.4    89
 DOME LAKE                8880    11.1    11.8    94     16.3    18.0    91
 GRAVE SPRINGS            8550    10.3     9.8   105     14.5    14.1   103
 HANSEN SAWMILL           8360     2.9     3.7    78     10.9    11.8    92
 MIDDLE POWDER            7760    12.4    12.7    98     12.0    16.8    71
 POWDER RIVER PASS        9480     8.7     9.3    94     14.7    16.9    87
 SUCKER CREEK             8880    14.4    11.6   124     18.6    18.7    99
 TIE CREEK                6870     2.7     2.7   100     14.4    14.6    99
                                                -----                  -----
                Basin wide percent of average    102                     90


BELLE FOURCHE

 BLIND PARK               6890     1.6     1.8    89     16.2    15.2   107
 COLE CANYON              5910     2.4     1.8   133     14.2    10.5   135
 NORTH RAPID CREEK        6130      .0     1.4     0     14.9    12.2   122
                                                -----                  -----
                Basin wide percent of average     80                    120


UPPER N. PLATTE RIVER

 COLUMBINE                9160    17.4    16.9   103     27.5    30.1    91
 DIVIDE PEAK              8880    21.0    16.0   131     28.7    25.2   114
 ELK RIVER                8700    13.7    10.9   126     24.5    23.9   103
 JOE WRIGHT              10120    23.4    24.8    94     27.9    31.5    89
 NORTH FRENCH CREEK      10130    42.7    34.3   124     42.3    31.1   136
 OLD BATTLE              10000    41.4    37.0   112     43.5    41.2   106
 SAGE CREEK BASIN         7850     6.1     9.3    66     15.7    14.6   108
 SOUTH BRUSH CREEK        8440    12.3     8.6   143     24.5    21.2   116
 TOWER                   10500    41.0    52.4    78     40.2    46.8    86
 WEBBER SPRINGS           9250    23.7    21.8   109     34.0    32.2   106
 WILLOW CREEK PASS        9540    12.0    13.1    92     15.7    16.5    95
                                                -----                  -----
                Basin wide percent of average    104                    103


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    24.7    26.1    95     27.9    28.3    99
 CASPER MTN.              7900    15.4    14.5   106     18.5    20.9    89
 DEADMAN HILL            10220      -M    19.2      *      -M    22.1      *
 DEER PARK                9700    19.0    16.4   116     24.1    28.0    86
 LAPRELE CREEK            8375     6.3     5.1   124     17.2    17.5    98
 RENO HILL                8400    16.4    12.2   134     23.8    21.6   110
 ROACH                    9700    21.1    16.1   131     26.9    23.6   114
 SAND LAKE               10050    38.7    36.7   105     38.7    30.8   126
 SOUTH PASS               9040    15.8    16.0    99     21.5    23.8    90
 WINDY PEAK               7900     7.2     3.0   240     16.4    14.5   113
                                                -----                  -----
                Basin wide percent of average    113                    103


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0     2.3     0     18.4    19.3    95
 DIVIDE PEAK              8880    21.0    16.0   131     28.7    25.2   114
 OLD BATTLE              10000    41.4    37.0   112     43.5    41.2   106
 SANDSTONE RS             8150     7.3     6.2   118     21.2    22.8    93
 WHISKEY PARK             8950    26.9    29.0    93     37.0    35.2   105
                                                -----                  -----
                Basin wide percent of average    107                    104


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     8.7    11.2    78     12.2    16.7    73
 BLIND BULL SUM           8650    20.5    26.5    77     15.7    26.0    60
 EAST RIM DIVIDE          7930      .2    11.2     2      8.8    14.4    61
 ELKHART PARK G.S.        9400     7.5    11.1    68     11.3    16.8    67
 GROS VENTRE SUMMIT       8750     8.5    11.6    73     11.5    15.9    72
 GUNSIGHT PASS            9820    10.6      -M      *    14.0      -M      *
 KENDALL R.S.             7740      .2     6.7     3     10.3    17.1    60
 LOOMIS PARK              8240     4.4    11.9    37     12.7    20.6    62
 NEW FORK LAKE            8340     1.3     6.0    22      8.4    14.0    60
 POCKET CREEK             9360     8.0      -M      *    13.8      -M      *
 SNIDER BASIN             8060     5.9    10.1    58     13.8    19.1    72
 SPRING CREEK DIVIDE      9000    21.4    26.9    80     21.7    31.0    70
 TRIPLE PEAK              8500    16.0    20.4    78     24.7    29.6    83
                                                -----                  -----
                Basin wide percent of average     62                     68


LOWER GREEN RIVER

 HAMS FORK                7840      .4     3.3    12     11.9    15.4    77
 HEWINTA                  9519     7.5     6.6   114     16.1    18.6    87
 HICKERSON PARK           9145     1.7     3.6    47     13.5    10.9   124
 HOLE-IN-ROCK             9150      .8     3.0    27     12.6    10.4   121
 INDIAN CREEK             9425    19.4    26.1    74     20.2    30.4    66
 KELLEY R.S.              8180     8.8    11.4    77     16.8    24.3    69
 STEEL CREEK PARK        10200    19.0    18.9   101     20.1    21.1    95
                                                -----                  -----
                Basin wide percent of average     79                     85


UPPER BEAR RIVER

 BUG LAKE                 7950    10.9    14.2    77     17.5    23.2    75
 HAYDEN FORK              9212     6.4     9.9    65     22.3    26.1    85
 KELLEY R.S.              8180     8.8    11.4    77     16.8    24.3    69
 LILY LAKE                9156    10.1     8.5   119     18.2    22.0    83
 MONTE CRISTO             8960    16.3    25.5    64     22.2    31.4    71
 SALT RIVER SUMMIT        7760     6.8     7.6    89     15.1    22.3    68
 TRIAL LAKE               9992    19.9    25.2    79     19.9    30.5    65
                                                -----                  -----
                Basin wide percent of average     77                     73

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


 -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.