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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


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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 14 , 2010
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     2.5     7.4    34     16.1    25.4    63
 COTTONWOOD CREEK         7670    15.9    14.9   107     27.6    33.6    82
 GRAND TARGHEE            9260    45.0      -M      *    35.1      -M      *
 GRANITE CREEK            6770     2.0     8.6    23     15.0    23.4    64
 GRASSY LAKE              7265    19.4    27.7    70     30.9    42.6    73
 GROS VENTRE SUMMIT       8750     8.9    10.5    85     11.8    16.2    73
 GUNSIGHT PASS            9820    11.8      -M      *    15.0      -M      *
 LEWIS LAKE DIVIDE        7850    18.3    30.0    61     26.1    43.2    60
 PHILLIPS BENCH           8200    18.0    25.1    72     24.8    34.6    72
 SALT RIVER SUMMIT        7760     6.8     5.8   117     15.8    22.6    70
 SNAKE RIVER STATION      6920      .0     6.7     0     19.4    26.7    73
 SPRING CREEK DIVIDE      9000    23.3    25.5    91     23.5    31.4    75
 THUMB DIVIDE             7980     6.2    10.5    59     16.6    23.2    72
 TOGWOTEE PASS            9580    24.0    27.7    87       -M    30.6      *
 TWO OCEAN PLATEAU        9240    26.8    31.0    86     22.2    33.8    66
 WILLOW CREEK             8380    22.6    26.3    86     34.8    39.8    87
                                                -----                  -----
                Basin wide percent of average     76                     72


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    17.9    25.7    70     17.7    25.0    71
 BLACK BEAR               8170    27.9    37.2    75     31.6    47.7    66
 CANYON                   7870     7.4     7.7    96     14.1    18.8    75
 FISHER CREEK             9100    27.1    37.2    73     29.5    43.8    67
 MADISON PLATEAU          7750    16.7    20.5    81     25.0    31.9    78
 NORTHEAST ENTRANCE       7350      .0     4.1     0     11.5    15.8    73
 PARKER PEAK              9400    22.6    24.2    93     16.6    21.0    79
 SYLVAN LAKE              8420    14.2    21.1    67     22.1    26.3    84
 THUMB DIVIDE             7980     6.2    10.5    59     16.6    23.2    72
 TWO OCEAN PLATEAU        9240    26.8    31.0    86     22.2    33.8    66
 WHISKEY CREEK            6800     8.9    10.8    82     16.3    25.4    64
 WHITE MILL               8700    19.6    25.3    77     20.3    32.8    62
 WOLVERINE                7650      .2     3.9     5      9.5    16.5    58
                                                -----                  -----
                Basin wide percent of average     75                     70


WIND RIVER

 BURROUGHS CREEK          8750    11.7    10.9   107       -M    20.7      *
 COLD SPRINGS             9630     9.4     3.7   254     17.7    15.3   116
 DEER PARK                9700    22.5    17.2   131     27.4    28.5    96
 HOBBS PARK              10100    25.7    17.1   150     26.3    18.7   141
 LITTLE WARM              9370    10.4     8.3   125     14.3    18.2    79
 SOUTH PASS               9040    19.4    14.7   132     25.4    24.3   105
 ST. LAWRENCE ALT         8620     9.9     4.3   230     19.1    13.5   141
 TOGWOTEE PASS            9580    24.0    27.7    87       -M    30.6      *
 TOWNSEND CREEK           8700    16.3     6.3   259     23.9    17.0   141
                                                -----                  -----
                Basin wide percent of average    135                    114


BIGHORN BASIN

 BALD MTN.                9380    19.0    23.4    81     15.8    23.1    68
 BEAR TRAP MEADOW         8200     5.5     1.0   550     12.4    12.2   102
 BLACKWATER               9780    22.9    28.9    79     21.5    26.4    81
 BONE SPRINGS DIV         9350    15.6    16.7    93     15.2    20.0    76
 EVENING STAR             9200    21.8    32.8    66     26.2    31.7    83
 GRAVE SPRINGS            8550    12.2     8.8   139     16.8    14.5   116
 KIRWIN                   9550    13.5    11.6   116     15.5    15.6    99
 MARQUETTE                8760    13.9     9.4   148     16.8    15.5   108
 MIDDLE POWDER            7760    13.9    11.7   119     13.1    17.3    76
 OWL CREEK                8975     3.7     2.6   142     11.2     9.3   120
 POWDER RIVER PASS        9480     9.6     8.6   112     15.1    17.4    87
 SHELL CREEK              9580    16.5    16.7    99     16.0    18.4    87
 SYLVAN LAKE              8420    14.2    21.1    67     22.1    26.3    84
 SYLVAN ROAD              7120      .0     3.3     0     15.9    21.7    73
 TIMBER CREEK             7950     5.6     2.5   224     13.3    12.1   110
 YOUNTS PEAK              8350    13.0    16.1    81     13.3    20.1    66
                                                -----                  -----
                Basin wide percent of average     93                     86


SHOSHONE RIVER

 BLACKWATER               9780    22.9    28.9    79     21.5    26.4    81
 EVENING STAR             9200    21.8    32.8    66     26.2    31.7    83
 KIRWIN                   9550    13.5    11.6   116     15.5    15.6    99
 MARQUETTE                8760    13.9     9.4   148     16.8    15.5   108
 SYLVAN LAKE              8420    14.2    21.1    67     22.1    26.3    84
 SYLVAN ROAD              7120      .0     3.3     0     15.9    21.7    73
 YOUNTS PEAK              8350    13.0    16.1    81     13.3    20.1    66
                                                -----                  -----
                Basin wide percent of average     81                     83


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     5.5     1.0   550     12.4    12.2   102
 BIG GOOSE                7990    13.5     9.5   142     17.8    14.6   122
 BONE SPRINGS DIV         9350    15.6    16.7    93     15.2    20.0    76
 BURGESS JUNCTION         7880    14.8    10.8   137     16.4    16.8    98
 CLOUD PEAK RESERVOIR     9860    19.6    15.1   130     19.3    19.1   101
 DOME LAKE                8880    14.1    11.0   128     19.1    18.5   103
 GRAVE SPRINGS            8550    12.2     8.8   139     16.8    14.5   116
 HANSEN SAWMILL           8360     6.2     2.7   230     13.9    12.2   114
 MIDDLE POWDER            7760    13.9    11.7   119     13.1    17.3    76
 POWDER RIVER PASS        9480     9.6     8.6   112     15.1    17.4    87
 SUCKER CREEK             8880    18.1    10.8   168     21.5    19.2   112
 TIE CREEK                6870      -M     1.7      *    18.5    15.1   123
                                                -----                  -----
                Basin wide percent of average    134                    101


BELLE FOURCHE

 BLIND PARK               6890     2.8      .5   560*    17.8    15.7   113
 COLE CANYON              5910     4.3     1.0   430     16.9    11.0   154
 NORTH RAPID CREEK        6130     1.2      .8   150*    16.6    12.5   133
                                                -----                  -----
                Basin wide percent of average    361*                   131


UPPER N. PLATTE RIVER

 COLUMBINE                9160    18.5    14.5   128     29.0    30.5    95
 DIVIDE PEAK              8880    21.2    13.9   153     29.6    25.7   115
 ELK RIVER                8700    14.7     8.7   169     25.7    24.3   106
 JOE WRIGHT              10120    24.9    24.2   103     29.4    32.1    92
 NORTH FRENCH CREEK      10130    43.3    33.6   129     43.3    31.7   137
 OLD BATTLE              10000    42.3    36.1   117     45.2    41.9   108
 SAGE CREEK BASIN         7850     4.9     8.1    60     16.1    14.9   108
 SOUTH BRUSH CREEK        8440    12.3     7.2   171     24.9    21.7   115
 TOWER                   10500    42.5    51.9    82     42.1    47.4    89
 WEBBER SPRINGS           9250    24.4    19.4   126     35.3    32.7   108
 WILLOW CREEK PASS        9540    13.6    11.9   114     17.0    16.9   101
                                                -----                  -----
                Basin wide percent of average    114                    106


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    25.9    24.2   107     29.5    28.9   102
 CASPER MTN.              7900    17.0    12.7   134     20.1    21.5    93
 DEADMAN HILL            10220      -M    18.5      *      -M    22.6      *
 DEER PARK                9700    22.5    17.2   131     27.4    28.5    96
 LAPRELE CREEK            8375     6.7     4.1   163     18.1    18.0   101
 RENO HILL                8400    17.6    10.5   168     24.7    22.2   111
 ROACH                    9700    22.4    14.4   156     28.5    24.1   118
 SAND LAKE               10050    39.8    36.0   111     39.6    31.5   126
 SOUTH PASS               9040    19.4    14.7   132     25.4    24.3   105
 WINDY PEAK               7900     7.7     2.1   367     17.3    15.0   115
                                                -----                  -----
                Basin wide percent of average    132                    108


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0     1.2     0     19.0    19.6    97
 DIVIDE PEAK              8880    21.2    13.9   153     29.6    25.7   115
 OLD BATTLE              10000    42.3    36.1   117     45.2    41.9   108
 SANDSTONE RS             8150     6.5     4.5   144     22.0    23.2    95
 WHISKEY PARK             8950    28.5    27.5   104     38.9    35.8   109
                                                -----                  -----
                Basin wide percent of average    118                    106


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     8.3     9.8    85     12.5    17.0    74
 BLIND BULL SUM           8650    20.9    25.5    82     16.7    26.4    63
 EAST RIM DIVIDE          7930      .3     9.9     3      9.2    14.7    63
 ELKHART PARK G.S.        9400     7.7    10.0    77     11.6    17.2    67
 GROS VENTRE SUMMIT       8750     8.9    10.5    85     11.8    16.2    73
 GUNSIGHT PASS            9820    11.8      -M      *    15.0      -M      *
 KENDALL R.S.             7740      .2     4.7     4     10.9    17.4    63
 LOOMIS PARK              8240     4.3    10.4    41     13.2    21.0    63
 NEW FORK LAKE            8340      .9     4.6    20      8.4    14.4    58
 POCKET CREEK             9360     8.9      -M      *    14.4      -M      *
 SNIDER BASIN             8060     7.9     8.5    93     15.8    19.3    82
 SPRING CREEK DIVIDE      9000    23.3    25.5    91     23.5    31.4    75
 TRIPLE PEAK              8500    18.2    18.3    99     27.1    30.1    90
                                                -----                  -----
                Basin wide percent of average     73                     71


LOWER GREEN RIVER

 HAMS FORK                7840     1.5     1.8    83     13.8    15.7    88
 HEWINTA                  9519     8.6     5.2   165     17.3    18.9    92
 HICKERSON PARK           9145     2.7     2.6   104     15.1    11.2   135
 HOLE-IN-ROCK             9150     2.0     2.1    95     14.7    10.8   136
 INDIAN CREEK             9425    21.7    24.6    88     22.2    30.8    72
 KELLEY R.S.              8180     9.2     9.9    93     17.5    24.7    71
 STEEL CREEK PARK        10200    20.7    18.5   112     21.7    21.5   101
                                                -----                  -----
                Basin wide percent of average    103                     92


UPPER BEAR RIVER

 BUG LAKE                 7950    12.0    12.0   100     19.1    23.6    81
 HAYDEN FORK              9212     7.2     8.2    88     23.7    26.6    89
 KELLEY R.S.              8180     9.2     9.9    93     17.5    24.7    71
 LILY LAKE                9156    11.5     7.0   164     19.9    22.4    89
 MONTE CRISTO             8960    18.7    23.6    79     24.6    32.0    77
 SALT RIVER SUMMIT        7760     6.8     5.8   117     15.8    22.6    70
 TRIAL LAKE               9992    20.4    23.9    85     21.1    31.1    68
                                                -----                  -----
                Basin wide percent of average     95                     77

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


 -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.