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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 TUESDAY: MAY 17 , 2005
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030      .1     5.7     2     18.1    25.8    70
 COTTONWOOD CREEK         7600     8.0    12.9    62     29.0    33.9    86
 GRANITE CREEK            6770      .1     7.0     1     19.8    23.7    84
 GRASSY LAKE              7265    10.4    25.0    42     30.1    43.1    70
 GROS VENTRE SUMMIT       8750     7.4     9.2    80     14.3    16.5    87
 LEWIS LAKE DIVIDE        7850    11.2    27.7    40     27.1    43.6    62
 PHILLIPS BENCH           8200    19.6    22.9    86     28.9    34.9    83
 SALT RIVER SUMMIT        7600     3.3     4.3    77     21.4    22.9    93
 SNAKE RIVER STATION      6920      .3     5.0     6     16.7    27.0    62
 SPRING CREEK DIVIDE      9000    23.8    23.6   101     27.5    31.7    87
 THUMB DIVIDE             7980     1.1     8.8    12     16.1    23.4    69
 TOGWOTEE PASS            9580    18.7    26.8    70     22.1    30.9    72
 TWO OCEAN PLATEAU        9240    25.7    30.1    85     23.1    34.3    67
 WILLOW CREEK             8450    18.2    24.0    76     38.7    40.2    96
                                                -----                  -----
                Basin wide percent of average     63                     77


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    17.6    24.9    71     18.1    25.3    72
 BLACK BEAR               8170    30.1    35.3    85     37.3    48.1    78
 CANYON                   8090     1.1     6.4    17     13.2    19.1    69
 FISHER CREEK             9100    25.4    35.8    71     30.0    44.4    68
 MADISON PLATEAU          7750    14.7    18.3    80     25.6    32.4    79
 NORTHEAST ENTRANCE       7350      .3     3.0    10     10.5    16.2    65
 PARKER PEAK              9400    17.2    23.4    74     17.2    21.4    80
 SYLVAN LAKE              8420     8.6    19.3    45     21.2    26.9    79
 THUMB DIVIDE             7980     1.1     8.8    12     16.1    23.4    69
 TWO OCEAN PLATEAU        9240    25.7    30.1    85     23.1    34.3    67
 WHISKEY CREEK            6800     5.6     8.8    64     19.7    25.8    76
 WHITE MILL               8700    17.3    23.9    72     20.0    33.3    60
 WOLVERINE                7650      .2     2.8     7     11.0    16.8    65
                                                -----                  -----
                Basin wide percent of average     68                     72


WIND RIVER

 BURROUGHS CREEK          8750    10.5     9.6   109     15.2    21.0    72
 COLD SPRINGS             9630     3.4     3.0   113     14.6    15.6    94
 DEER PARK                9700    26.2    16.1   163     31.6    29.0   109
 HOBBS PARK              10100    19.3    15.9   121     21.0    19.0   111
 LITTLE WARM              9370     7.4     7.1   104     15.3    18.5    83
 SOUTH PASS               9040    17.3    13.2   131     26.6    24.4   109
 ST. LAWRENCE ALT         8620     3.5     3.3   106     14.9    13.7   109
 TOGWOTEE PASS            9580    18.7    26.8    70     22.1    30.9    72
 TOWNSEND CREEK           8700     6.2     5.2   119     19.7    17.2   115
                                                -----                  -----
                Basin wide percent of average    112                     96


BIGHORN BASIN

 BALD MTN.                9380    20.4    22.3    91     22.4    23.4    96
 BEAR TRAP MEADOW         8200      .2      .6    33     13.0    12.6   103
 BLACKWATER               9780    17.9    28.3    63     19.7    26.9    73
 BONE SPRINGS DIV         9350    17.7    15.3   116     22.5    20.4   110
 EVENING STAR             9200    17.9    31.8    56     25.6    32.2    80
 GRAVE SPRINGS            8550     4.4     7.2    61     12.9    14.6    88
 KIRWIN                   9550    10.3    10.4    99     14.8    15.9    93
 MARQUETTE                8760     8.3     8.3   100     14.9    15.9    94
 MIDDLE POWDER            7760     5.6    10.1    55     10.9    17.5    62
 OWL CREEK                8975     2.8     2.1   133     11.9     9.7   123
 POWDER RIVER PASS        9480     7.4     7.4   100     17.9    17.8   101
 SHELL CREEK              9580    18.8    15.6   121     20.0    18.7   107
 SYLVAN LAKE              8420     8.6    19.3    45     21.2    26.9    79
 SYLVAN ROAD              7120      .2     2.4     8     13.4    21.9    61
 TIMBER CREEK             7950     2.5     2.0   125     12.1    12.5    97
 YOUNTS PEAK              8350     8.8    14.4    61     15.2    20.5    74
                                                -----                  -----
                Basin wide percent of average     77                     87


SHOSHONE RIVER

 BLACKWATER               9780    17.9    28.3    63     19.7    26.9    73
 EVENING STAR             9200    17.9    31.8    56     25.6    32.2    80
 KIRWIN                   9550    10.3    10.4    99     14.8    15.9    93
 MARQUETTE                8760     8.3     8.3   100     14.9    15.9    94
 SYLVAN LAKE              8420     8.6    19.3    45     21.2    26.9    79
 SYLVAN ROAD              7120      .2     2.4     8     13.4    21.9    61
 YOUNTS PEAK              8350     8.8    14.4    61     15.2    20.5    74
                                                -----                  -----
                Basin wide percent of average     63                     78


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .2      .6    33     13.0    12.6   103
 BIG GOOSE                7990     9.0     8.3   108     18.5    14.7   126
 BONE SPRINGS DIV         9350    17.7    15.3   116     22.5    20.4   110
 BURGESS JUNCTION         7880     9.2     9.3    99     17.6    17.0   104
 CLOUD PEAK RESERVOIR     9860    19.5    14.0   139     21.9    19.5   112
 DOME LAKE                8880     9.9     9.6   103     20.8    18.8   111
 GRAVE SPRINGS            8550     4.4     7.2    61     12.9    14.6    88
 HANSEN SAWMILL           8360      .6     2.0    30     15.6    12.6   124
 MIDDLE POWDER            7760     5.6    10.1    55     10.9    17.5    62
 POWDER RIVER PASS        9480     7.4     7.4   100     17.9    17.8   101
 SUCKER CREEK             8880    13.7     9.4   146     22.2    19.5   114
 TIE CREEK                6870      .2     1.1    18     18.9    15.4   123
                                                -----                  -----
                Basin wide percent of average    103                    106


BELLE FOURCHE

 BLIND PARK               6890      .0      .1     0*    13.0    16.1    81
 COLE CANYON              5910      .0     2.7     0       -M      -M      *
 NORTH RAPID CREEK        6130      .0      .5     0*    11.3    12.7    89
                                                -----                  -----
                Basin wide percent of average      0*                    84


UPPER N. PLATTE RIVER

 COLUMBINE                9160     4.9    11.8    42       -M    30.7      *
 DIVIDE PEAK              8860    13.7    11.7   117     28.8    26.0   111
 ELK RIVER                8700     8.2     6.9   119     26.3    24.5   107
 JOE WRIGHT              10120    23.3    23.0   101     27.8    32.5    86
 NORTH FRENCH CREEK      10130    30.5    32.1    95     32.3    32.1   101
 OLD BATTLE               9920    40.7    34.3   119       -M    42.1      *
 SAGE CREEK BASIN         7850      .3     6.8     4     19.3    15.0   129
 SOUTH BRUSH CREEK        8440     3.4     5.9    58     19.7    21.9    90
 TOWER                   10500    40.8    50.4    81     46.9    47.6    99
 WEBBER SPRINGS           9250    17.8    16.7   107     32.9    33.0   100
 WILLOW CREEK PASS        9540    15.2    10.3   148     16.5    17.3    95
                                                -----                  -----
                Basin wide percent of average     95                    100


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10220    18.9    21.7    87     24.4    29.1    84
 CASPER MTN.              7850     2.9    10.8    27     17.2    21.8    79
 DEADMAN HILL            10220    17.6    17.2   102     19.5    22.9    85
 DEER PARK                9700    26.2    16.1   163     31.6    29.0   109
 LAPRELE CREEK            8375      .0     3.3     0     15.0    18.4    82
 RENO HILL                8500     5.6     9.0    62     17.5    22.5    78
 ROACH                    9700    13.9    12.5   111     23.0    24.5    94
 SAND LAKE               10050    27.8    34.4    81     29.9    31.9    94
 SOUTH PASS               9040    17.3    13.2   131     26.6    24.4   109
 WINDY PEAK               7900      -M     1.5      *    12.6    15.4    82
                                                -----                  -----
                Basin wide percent of average     94                     91


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .2      .5    40*    20.3    19.8   103
 DIVIDE PEAK              8860    13.7    11.7   117     28.8    26.0   111
 OLD BATTLE               9920    40.7    34.3   119       -M    42.1      *
 SANDSTONE RS             8150      .2     3.4     6     24.3    23.4   104
 WHISKEY PARK             8950    24.4    25.0    98     31.8    35.9    89
                                                -----                  -----
                Basin wide percent of average    106                    100


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    11.8     8.1   146     19.1    17.3   110
 BLIND BULL SUM           8900    18.5    24.1    77     20.7    26.7    78
 EAST RIM DIVIDE          7930      .1     8.3     1     14.0    15.0    93
 ELKHART PARK G.S.        9400    12.2     8.7   140     19.6    17.5   112
 GROS VENTRE SUMMIT       8750     7.4     9.2    80     14.3    16.5    87
 KENDALL R.S.             7740      .2     3.3     6     16.1    17.6    91
 LOOMIS PARK              8240     5.5     8.8    62     20.4    21.2    96
 NEW FORK LAKE            8340     3.7     3.4   109     15.6    14.7   106
 SNIDER BASIN             8060     3.4     6.8    50     16.7    19.5    86
 SPRING CREEK DIVIDE      9000    23.8    23.6   101     27.5    31.7    87
 TRIPLE PEAK              8500     9.2    15.7    59     25.7    30.3    85
                                                -----                  -----
                Basin wide percent of average     80                     92


LOWER GREEN RIVER

 HAMS FORK                7840      .2     1.0    20*    18.4    15.9   116
 HEWINTA                  9500      .0     4.0     0     16.1    19.1    84
 HICKERSON PARK           9100      .0     1.9     0     14.0    11.4   123
 HOLE-IN-ROCK             9150      .1     1.5     7     13.4    11.0   122
 INDIAN CREEK             9425    31.3    22.6   138     30.9    31.0   100
 KELLEY R.S.              8180    10.4     8.2   127     24.6    24.9    99
 STEEL CREEK PARK        10100    19.3    17.4   111     20.8    21.7    96
                                                -----                  -----
                Basin wide percent of average    108                    102


UPPER BEAR RIVER

 BUG LAKE                 7950    15.5     9.9   157     28.7    23.8   121
 HAYDEN FORK              9100     4.7     6.6    71     30.4    26.9   113
 KELLEY R.S.              8180    10.4     8.2   127     24.6    24.9    99
 LILY LAKE                9050     6.0     5.7   105     23.0    22.6   102
 MONTE CRISTO             8960    29.2    21.5   136     37.3    32.2   116
 SALT RIVER SUMMIT        7600     3.3     4.3    77     21.4    22.9    93
 TRIAL LAKE               9960    33.6    22.2   151     37.3    31.4   119
                                                -----                  -----
                Basin wide percent of average    131                    110

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


 -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.