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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 6 , 2003 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     8.0    10.2    78     24.4    24.8    98 
 COTTONWOOD CREEK         7600    14.6    17.7    82     27.4    32.5    84 
 GRANITE CREEK            6770      -M    11.0      *      -M    22.8      *
 GRASSY LAKE              7265    30.2    30.9    98     38.9    41.6    94 
 GROS VENTRE SUMMIT       8775     9.4    12.1    78     12.9    15.7    82 
 LEWIS LAKE DIVIDE        7860    32.6    32.6   100     34.7    42.2    82 
 PHILLIPS BENCH           8200      -M    27.5      *      -M    33.7      *
 SALT RIVER SUMMIT        7600     3.0     8.6    35     15.4    22.0    70 
 SNAKE RIVER STATION      6920     4.6     9.9    46     24.5    26.0    94 
 SPRING CREEK DIVIDE      9000      -M    27.2      *      -M    30.7      *
 THUMB DIVIDE             7980    12.2    13.0    94     20.6    22.5    92 
 TOGWOTEE PASS            9580    25.2    27.7    91     26.7    29.6    90 
 TWO OCEAN PLATEAU        9360    37.1    31.4   118     30.2    32.8    92 
 WILLOW CREEK             8450    23.9    28.7    83     39.1    38.5   102 
                                                -----                  -----
                Basin wide percent of average     90                     90 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    30.2    25.8   117     26.4    24.1   110 
 BLACK BEAR               8170    41.0    38.7   106     39.3    46.5    85 
 CANYON                   8090    13.1     9.8   134     18.4    18.2   101 
 FISHER CREEK             9100    40.6    37.4   109     38.8    42.7    91 
 MADISON PLATEAU          7750    22.2    22.5    99     26.7    31.0    86 
 NORTHEAST ENTRANCE       7350     3.7     5.7    65     16.0    15.3   105 
 PARKER PEAK              9400    29.5    24.3   121     24.4    20.1   121 
 SYLVAN LAKE              8420    22.9    22.6   101     28.7    25.4   113 
 THUMB DIVIDE             7980    12.2    13.0    94     20.6    22.5    92 
 TWO OCEAN PLATEAU        9360    37.1    31.4   118     30.2    32.8    92 
 WHISKEY CREEK            6800      -M    13.3      *      -M    24.7      *
 WHITE MILL               8700    30.5    25.8   118     27.4    31.8    86 
 WOLVERINE                7650     1.9     5.8    33     14.1    15.7    90 
                                                -----                  -----
                Basin wide percent of average    108                     95 


WIND RIVER

 BURROUGHS CREEK          8750    16.3    12.5   130     20.8    19.8   105 
 COLD SPRINGS             9630      .3     4.3     7     11.6    14.4    81 
 DEER PARK                9700    12.8    18.1    71     20.0    27.6    72 
 HOBBS PARK              10100    12.9    17.5    74     15.1    17.6    86 
 LITTLE WARM              9370     5.2     9.9    53     13.0    17.3    75 
 SOUTH PASS               9040     8.8    16.6    53     16.0    23.2    69 
 ST. LAWRENCE ALT         8620      .0     5.2     0      9.8    12.6    78 
 TOGWOTEE PASS            9580    25.2    27.7    91     26.7    29.6    90 
 TOWNSEND CREEK           8700     2.7     7.9    34     13.5    16.0    84 
                                                -----                  -----
                Basin wide percent of average     70                     82 


BIGHORN BASIN

 BALD MTN.                9380    20.6    23.4    88     20.4    21.9    93 
 BEAR TRAP MEADOW         8200     1.7     1.9    89     11.2    11.4    98 
 BLACKWATER               9780    29.7    28.8   103     25.9    25.4   102 
 BONE SPRINGS DIV         9350    17.9    17.6   102     19.6    18.9   104 
 EVENING STAR             9200    33.3    33.0   101     37.0    30.6   121 
 GRAVE SPRINGS            8550     5.8    10.0    58     11.1    13.6    82 
 KIRWIN                   9550    14.0    12.3   114     15.2    14.7   103 
 MARQUETTE                8760    14.5    10.4   139     17.5    14.4   122 
 MIDDLE POWDER            7760     8.5    13.2    64     10.4    16.3    64 
 OWL CREEK                8975      .2     3.4     6      7.8     8.7    90 
 POWDER RIVER PASS        9480     9.3     9.8    95     15.8    16.4    96 
 SHELL CREEK              9580    16.5    16.6    99     17.0    17.4    98 
 SYLVAN LAKE              8420    22.9    22.6   101     28.7    25.4   113 
 SYLVAN ROAD              7120     8.8     6.2   142     20.7    21.0    99 
 TIMBER CREEK             7950     3.3     3.9    85     10.0    11.1    90 
 YOUNTS PEAK              8350    16.2    17.1    95     18.1    19.3    94 
                                                -----                  -----
                Basin wide percent of average     97                    100 


SHOSHONE RIVER

 BLACKWATER               9780    29.7    28.8   103     25.9    25.4   102 
 EVENING STAR             9200    33.3    33.0   101     37.0    30.6   121 
 KIRWIN                   9550    14.0    12.3   114     15.2    14.7   103 
 MARQUETTE                8760    14.5    10.4   139     17.5    14.4   122 
 SYLVAN LAKE              8420    22.9    22.6   101     28.7    25.4   113 
 SYLVAN ROAD              7120     8.8     6.2   142     20.7    21.0    99 
 YOUNTS PEAK              8350    16.2    17.1    95     18.1    19.3    94 
                                                -----                  -----
                Basin wide percent of average    107                    108 


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     1.7     1.9    89     11.2    11.4    98 
 BIG GOOSE                7990    10.7    10.7   100     16.6    13.5   123 
 BONE SPRINGS DIV         9350    17.9    17.6   102     19.6    18.9   104 
 BURGESS JUNCTION         7880      -M    12.2      *      -M    15.9      *
 CLOUD PEAK RESERVOIR     9860    16.5    15.7   105     17.7    17.8    99 
 DOME LAKE                8880    11.5    12.4    93     18.8    17.4   108 
 GRAVE SPRINGS            8550     5.8    10.0    58     11.1    13.6    82 
 HANSEN SAWMILL           8360     2.1     3.9    54     12.9    11.5   112 
 MIDDLE POWDER            7760     8.5    13.2    64     10.4    16.3    64 
 POWDER RIVER PASS        9480     9.3     9.8    95     15.8    16.4    96 
 SUCKER CREEK             8880    14.2    12.1   117     19.8    18.1   109 
 TIE CREEK                6870     3.0     3.0   100     17.3    14.1   123 
                                                -----                  -----
                Basin wide percent of average     92                    101 


BELLE FOURCHE

 BLIND PARK               6890      .0     2.6     0     13.3    14.8    90 
 COLE CANYON              5910      .0      -M      *    10.8      -M      *
 NORTH RAPID CREEK        6130      .0     2.7     0     11.5    11.8    97 
                                                -----                  -----
                Basin wide percent of average      0                     93 


UPPER N. PLATTE RIVER

 COLUMBINE                9400    17.6    18.1    97     29.8    29.7   100 
 DIVIDE PEAK              8800    18.4    17.0   108     25.6    24.8   103 
 ELK RIVER                8700    11.9    12.4    96     23.7    23.5   101 
 JOE WRIGHT              10120    30.6    24.6   124     36.1    30.9   117 
 NORTH FRENCH CREEK      10100    36.1    34.0   106     35.7    30.4   117 
 OLD BATTLE              10000    35.3    36.4    97     39.2    40.6    97 
 SAGE CREEK BASIN         7850      .0     9.8     0     14.9    14.4   103 
 SOUTH BRUSH CREEK        8400    10.2     9.5   107     22.2    20.7   107 
 TOWER                   10500    51.6    52.0    99     51.8    45.9   113 
 WEBBER SPRINGS           9200    16.9    22.6    75     29.3    31.7    92 
 WILLOW CREEK PASS        9540    21.2    13.1   162     19.7    16.2   122 
                                                -----                  -----
                Basin wide percent of average    100                    106 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    18.8    26.4    71     25.2    27.7    91 
 CASPER MTN.              7900    10.5    15.2    69     15.2    20.2    75 
 DEADMAN HILL            10220    19.5    19.1   102     23.8    21.6   110 
 DEER PARK                9700    12.8    18.1    71     20.0    27.6    72 
 LAPRELE CREEK            8320     5.9     5.8   102     15.7    17.1    92 
 RENO HILL                8400    13.9    12.9   108     19.1    20.9    91 
 ROACH                    9700    17.7    16.7   106     23.8    23.0   103 
 SAND LAKE               10080    32.0    36.5    88     28.5    30.1    95 
 SOUTH PASS               9040     8.8    16.6    53     16.0    23.2    69 
 WINDY PEAK               7840     6.9     3.8   182     15.9    14.1   113 
                                                -----                  -----
                Basin wide percent of average     86                     90 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .1     3.2     3     18.9    19.0    99 
 DIVIDE PEAK              8800    18.4    17.0   108     25.6    24.8   103 
 OLD BATTLE              10000    35.3    36.4    97     39.2    40.6    97 
 SANDSTONE RS             8150     4.4     7.5    59     22.5    22.4   100 
 WHISKEY PARK             8950    29.6    29.1   102     33.1    34.4    96 
                                                -----                  -----
                Basin wide percent of average     94                     99 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100     7.3    11.9    61     12.6    16.3    77 
 BLIND BULL SUM           8650    22.5    26.8    84     18.8    25.7    73 
 EAST RIM DIVIDE          7930     7.0    11.7    60     11.3    14.3    79 
 ELKHART PARK G.S.        9400      -M    11.6      *      -M    16.5      *
 GROS VENTRE SUMMIT       8775     9.4    12.1    78     12.9    15.7    82 
 KENDALL R.S.             7740      .5     7.8     6     14.2    16.9    84 
 LOOMIS PARK              8240     8.1    12.7    64     17.8    20.3    88 
 NEW FORK LAKE            8340     3.6     6.8    53       -M    13.8      *
 SNIDER BASIN             8250     4.9    10.8    45     14.2    18.8    76 
 SPRING CREEK DIVIDE      9000      -M    27.2      *      -M    30.7      *
 TRIPLE PEAK              8500    15.6    21.3    73     29.1    29.1   100 
                                                -----                  -----
                Basin wide percent of average     65                     83 


LOWER GREEN RIVER

 HAMS FORK                7840      .1     4.2     2     12.0    15.1    79 
 HEWINTA                  9500     3.4     7.6    45     14.3    18.2    79 
 HICKERSON PARK           9150      .0     4.4     0      9.5    10.6    90 
 HOLE-IN-ROCK             9150      .4     3.6    11     10.5    10.1   104 
 INDIAN CREEK             9425    21.2    26.7    79     21.6    30.0    72 
 KELLEY R.S.              8180     8.1    12.3    66     16.1    24.0    67 
 STEEL CREEK PARK        10100    16.7    18.4    91     16.5    20.7    80 
                                                -----                  -----
                Basin wide percent of average     65                     78 


UPPER BEAR RIVER

 BUG LAKE                 7950     9.9    15.5    64     17.9    22.8    79 
 HAYDEN FORK              9400     4.5    11.0    41     21.0    25.6    82 
 KELLEY R.S.              8180     8.1    12.3    66     16.1    24.0    67 
 LILY LAKE                9050     2.5     9.4    27     17.2    21.6    80 
 MONTE CRISTO             8960     9.7    26.3    37     24.2    30.9    78 
 SALT RIVER SUMMIT        7600     3.0     8.6    35     15.4    22.0    70 
 TRIAL LAKE               9960    13.1    25.3    52     20.4    30.0    68 
                                                -----                  -----
                Basin wide percent of average     47                     75 

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


 -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.