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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 MONDAY: MAY 19 , 2008
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     9.2     4.7   196     31.2    26.0   120
 COTTONWOOD CREEK         7670    16.6    12.0   138     29.8    34.4    87
 GRAND TARGHEE            9260    58.2      -M      *    42.0      -M      *
 GRANITE CREEK            6770     8.7     6.3   138     25.5    23.9   107
 GRASSY LAKE              7265    28.9    24.0   120     49.9    43.4   115
 GROS VENTRE SUMMIT       8750     7.4     8.6    86     16.8    16.7   101
 GUNSIGHT PASS            9820     8.7      -M      *    18.0      -M      *
 LEWIS LAKE DIVIDE        7850    31.3    26.8   117     42.4    43.9    97
 PHILLIPS BENCH           8200    25.3    22.0   115     39.4    35.2   112
 SALT RIVER SUMMIT        7760     3.6     3.0   120     18.9    23.1    82
 SNAKE RIVER STATION      6920     6.3     3.7   170     31.7    27.2   117
 SPRING CREEK DIVIDE      9000    19.0    22.8    83     27.5    32.0    86
 THUMB DIVIDE             7980     9.3     8.0   116     24.2    23.7   102
 TOGWOTEE PASS            9580    30.1    26.6   113     35.3    31.3   113
 TWO OCEAN PLATEAU        9240    44.9    29.8   151       -M    34.7      *
 WILLOW CREEK             8380    24.4    23.1   106     46.3    40.8   113
                                                -----                  -----
                Basin wide percent of average    120                    104


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    27.9    24.8   112     29.1    25.6   114
 BLACK BEAR               8170    45.0    34.9   129     49.5    48.6   102
 CANYON                   7870    12.2     5.6   218     24.5    19.3   127
 FISHER CREEK             9100    46.2    35.4   131     45.4    44.8   101
 MADISON PLATEAU          7750    27.2    17.5   155     37.9    32.6   116
 NORTHEAST ENTRANCE       7350      .2     1.9    11     16.5    16.4   101
 PARKER PEAK              9400    29.9    23.4   128       -M    21.7      *
 SYLVAN LAKE              8420    21.9    18.8   116     32.1    27.1   118
 THUMB DIVIDE             7980     9.3     8.0   116     24.2    23.7   102
 TWO OCEAN PLATEAU        9240    44.9    29.8   151       -M    34.7      *
 WHISKEY CREEK            6800    15.5     7.7   201     29.2    26.0   112
 WHITE MILL               8700    28.5    23.7   120     32.4    33.6    96
 WOLVERINE                7650      .3     1.8    17     17.6    17.1   103
                                                -----                  -----
                Basin wide percent of average    132                    107


WIND RIVER

 BURROUGHS CREEK          8750    12.1     9.3   130     21.3    21.3   100
 COLD SPRINGS             9630      .0     2.6     0     13.5    15.9    85
 DEER PARK                9700    14.9    16.6    90     25.1    29.4    85
 HOBBS PARK              10100    16.2    15.8   103     20.4    19.5   105
 LITTLE WARM              9370     3.7     6.3    59     17.7    18.8    94
 SOUTH PASS               9040    10.1    12.1    83     21.7    24.9    87
 ST. LAWRENCE ALT         8620      .3     2.6    12     11.8    14.1    84
 TOGWOTEE PASS            9580    30.1    26.6   113     35.3    31.3   113
 TOWNSEND CREEK           8700     2.8     4.7    60     16.4    17.6    93
                                                -----                  -----
                Basin wide percent of average     93                     95


BIGHORN BASIN

 BALD MTN.                9380    18.7    22.3    84     20.7    23.9    87
 BEAR TRAP MEADOW         8200      .0      .2     0     13.0    12.9   101
 BLACKWATER               9780    29.4    28.8   102     30.0    27.1   111
 BONE SPRINGS DIV         9350    18.1    15.1   120     23.7    20.8   114
 EVENING STAR             9200    28.3    31.7    89     40.4    32.5   124
 GRAVE SPRINGS            8550     9.6     5.7   168     14.6    15.0    97
 KIRWIN                   9550     9.6    10.2    94     17.9    16.2   110
 MARQUETTE                8760     6.9     8.1    85     14.9    16.3    91
 MIDDLE POWDER            7760    11.7     9.1   129     14.4    17.9    80
 OWL CREEK                8975      .1     1.8     6      9.3     9.9    94
 POWDER RIVER PASS        9480    10.0     6.8   147     19.1    18.1   106
 SHELL CREEK              9580    18.2    15.4   118     20.9    19.1   109
 SYLVAN LAKE              8420    21.9    18.8   116     32.1    27.1   118
 SYLVAN ROAD              7120      .0     1.7     0     24.3    22.2   109
 TIMBER CREEK             7950      .4     1.8    22     12.4    12.9    96
 YOUNTS PEAK              8350    14.0    13.9   101     20.2    20.7    98
                                                -----                  -----
                Basin wide percent of average    103                    105


SHOSHONE RIVER

 BLACKWATER               9780    29.4    28.8   102     30.0    27.1   111
 EVENING STAR             9200    28.3    31.7    89     40.4    32.5   124
 KIRWIN                   9550     9.6    10.2    94     17.9    16.2   110
 MARQUETTE                8760     6.9     8.1    85     14.9    16.3    91
 SYLVAN LAKE              8420    21.9    18.8   116     32.1    27.1   118
 SYLVAN ROAD              7120      .0     1.7     0     24.3    22.2   109
 YOUNTS PEAK              8350    14.0    13.9   101     20.2    20.7    98
                                                -----                  -----
                Basin wide percent of average     97                    111


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .0      .2     0     13.0    12.9   101
 BIG GOOSE                7990     8.9     8.2   109     18.2    15.2   120
 BONE SPRINGS DIV         9350    18.1    15.1   120     23.7    20.8   114
 BURGESS JUNCTION         7880    15.0     8.6   174     20.4    17.4   117
 CLOUD PEAK RESERVOIR     9860    16.7    13.9   120     22.2    20.0   111
 DOME LAKE                8880    10.6     8.9   119     21.3    19.2   111
 GRAVE SPRINGS            8550     9.6     5.7   168     14.6    15.0    97
 HANSEN SAWMILL           8360      .0     1.4     0     13.2    12.8   103
 MIDDLE POWDER            7760    11.7     9.1   129     14.4    17.9    80
 POWDER RIVER PASS        9480    10.0     6.8   147     19.1    18.1   106
 SUCKER CREEK             8880    16.5     8.8   187     24.5    20.0   123
 TIE CREEK                6870      -M      .7      *    17.4    15.8   110
                                                -----                  -----
                Basin wide percent of average    135                    108


BELLE FOURCHE

 BLIND PARK               6890      .0      .0   100     16.6    16.4   101
 COLE CANYON              5910      .0      .3     0     14.7    11.6   127
 NORTH RAPID CREEK        6130      -M      .2      *    16.7    13.0   128
                                                -----                  -----
                Basin wide percent of average      0                    117


UPPER N. PLATTE RIVER

 COLUMBINE                9160    18.8    10.2   184     35.0    31.1   113
 DIVIDE PEAK              8880    17.8    10.4   171     29.2    26.3   111
 ELK RIVER                8700    12.6     5.5   229     28.9    24.9   116
 JOE WRIGHT              10120    27.6    22.8   121     36.9    33.1   111
 NORTH FRENCH CREEK      10130    33.2    31.8   104     37.4    32.6   115
 OLD BATTLE              10000    39.3    33.8   116     48.1    42.7   113
 SAGE CREEK BASIN         7850     2.9     6.0    48     20.6    15.3   135
 SOUTH BRUSH CREEK        8440     1.2     5.1    24     21.8    22.4    97
 TOWER                   10500    50.2    50.4   100     51.1    48.3   106
 WEBBER SPRINGS           9250    22.4    15.3   146     37.9    33.4   113
 WILLOW CREEK PASS        9540    20.1     9.4   214     21.5    17.5   123
                                                -----                  -----
                Basin wide percent of average    123                    112


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    18.0    20.7    87     28.3    29.7    95
 CASPER MTN.              7900    13.7     9.7   141     21.4    22.4    96
 DEADMAN HILL            10220    21.8    16.8   130     26.1    23.3   112
 DEER PARK                9700    14.9    16.6    90     25.1    29.4    85
 LAPRELE CREEK            8375      .4     2.7    15     16.6    18.7    89
 RENO HILL                8400    15.7     8.0   196     26.5    23.1   115
 ROACH                    9700    19.4    11.6   167     28.8    24.9   116
 SAND LAKE               10050    34.4    34.1   101     37.9    32.5   117
 SOUTH PASS               9040    10.1    12.1    83     21.7    24.9    87
 WINDY PEAK               7900      .8     1.1    73     14.3    15.7    91
                                                -----                  -----
                Basin wide percent of average    112                    101


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100     20.7    20.1   103
 DIVIDE PEAK              8880    17.8    10.4   171     29.2    26.3   111
 OLD BATTLE              10000    39.3    33.8   116     48.1    42.7   113
 SANDSTONE RS             8150     6.2     2.5   248     26.0    23.7   110
 WHISKEY PARK             8950    33.7    24.2   139     43.6    36.5   119
                                                -----                  -----
                Basin wide percent of average    137                    112


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     4.7     7.4    64     15.9    17.5    91
 BLIND BULL SUM           8650    26.2    23.6   111     20.7    27.0    77
 EAST RIM DIVIDE          7930      .0     7.6     0     12.8    15.2    84
 ELKHART PARK G.S.        9400     5.3     8.1    65     14.1    17.8    79
 GROS VENTRE SUMMIT       8750     7.4     8.6    86     16.8    16.7   101
 GUNSIGHT PASS            9820     8.7      -M      *    18.0      -M      *
 KENDALL R.S.             7740      .1     1.6     6     16.0    17.8    90
 LOOMIS PARK              8240     4.3     8.1    53     20.5    21.5    95
 NEW FORK LAKE            8340      .0     2.3     0     12.2    14.9    82
 SNIDER BASIN             8060     2.4     5.9    41     16.2    19.7    82
 SPRING CREEK DIVIDE      9000    19.0    22.8    83     27.5    32.0    86
 TRIPLE PEAK              8500    16.6    14.5   114     33.7    30.7   110
                                                -----                  -----
                Basin wide percent of average     78                     89


LOWER GREEN RIVER

 HAMS FORK                7840      .0      .0   100     12.9    16.1    80
 HEWINTA                  9519     1.7     3.2    53     20.3    19.4   105
 HICKERSON PARK           9145      .0     1.2     0     11.5    11.7    98
 HOLE-IN-ROCK             9150      .0     1.0     0     12.0    11.2   107
 INDIAN CREEK             9425      -M    21.9      *      -M    31.4      *
 KELLEY R.S.              8180     7.1     7.4    96     21.3    25.2    85
 STEEL CREEK PARK        10200    18.4    17.1   108     22.5    22.0   102
                                                -----                  -----
                Basin wide percent of average     91                     95


UPPER BEAR RIVER

 BUG LAKE                 7950    10.8     8.6   126     20.5    24.1    85
 HAYDEN FORK              9212     2.4     5.7    42     27.6    27.2   101
 KELLEY R.S.              8180     7.1     7.4    96     21.3    25.2    85
 LILY LAKE                9156     3.6     5.0    72     21.6    22.9    94
 MONTE CRISTO             8960    20.7    20.5   101     30.5    32.7    93
 SALT RIVER SUMMIT        7760     3.6     3.0   120     18.9    23.1    82
 TRIAL LAKE               9992    15.8    21.5    73     28.8    31.8    91
                                                -----                  -----
                Basin wide percent of average     89                     90

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


 -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 1961-90.

Provisional data, subject to revision.