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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 9 , 2003 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     7.1     9.0    79     24.5    25.1    98 
 COTTONWOOD CREEK         7600    14.2    16.4    87     27.7    32.9    84 
 GRANITE CREEK            6770     2.5     9.9    25     18.5    23.0    80 
 GRASSY LAKE              7265    30.0    29.5   102     38.9    42.0    93 
 GROS VENTRE SUMMIT       8775     9.5    11.4    83     13.7    15.9    86 
 LEWIS LAKE DIVIDE        7860    32.3    31.4   103     34.9    42.6    82 
 PHILLIPS BENCH           8200    21.9    26.4    83     27.1    34.0    80 
 SALT RIVER SUMMIT        7600     1.7     7.3    23     15.5    22.2    70 
 SNAKE RIVER STATION      6920     3.3     8.5    39     24.6    26.2    94 
 SPRING CREEK DIVIDE      9000      -M    26.4      *      -M    30.9      *
 THUMB DIVIDE             7980    11.6    11.9    97     20.8    22.7    92 
 TOGWOTEE PASS            9580    25.9    27.6    94     27.4    30.0    91 
 TWO OCEAN PLATEAU        9360    37.5    31.2   120     30.6    33.2    92 
 WILLOW CREEK             8450    24.5    27.6    89     39.4    39.0   101 
                                                -----                  -----
                Basin wide percent of average     89                     88 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    30.4    25.7   118     26.7    24.4   109 
 BLACK BEAR               8170    41.2    38.0   108     39.7    47.0    84 
 CANYON                   8090    12.8     8.9   144     18.6    18.4   101 
 FISHER CREEK             9100    41.5    37.1   112     39.8    43.1    92 
 MADISON PLATEAU          7750    22.0    21.5   102     26.8    31.4    85 
 NORTHEAST ENTRANCE       7350     2.9     4.9    59     16.2    15.5   105 
 PARKER PEAK              9400    29.8    24.2   123     24.7    20.5   120 
 SYLVAN LAKE              8420    23.2    21.8   106     29.1    25.8   113 
 THUMB DIVIDE             7980    11.6    11.9    97     20.8    22.7    92 
 TWO OCEAN PLATEAU        9360    37.5    31.2   120     30.6    33.2    92 
 WHISKEY CREEK            6800    11.0    12.1    91     21.3    25.0    85 
 WHITE MILL               8700    31.0    25.4   122     27.9    32.2    87 
 WOLVERINE                7650     1.4     4.9    29     14.3    16.0    89 
                                                -----                  -----
                Basin wide percent of average    111                     95 


WIND RIVER

 BURROUGHS CREEK          8750    16.5    11.8   140     21.5    20.2   106 
 COLD SPRINGS             9630     1.2     3.9    31     12.5    14.7    85 
 DEER PARK                9700    13.2    17.8    74     20.9    28.0    75 
 HOBBS PARK              10100    12.6    17.3    73     15.9    18.0    88 
 LITTLE WARM              9370     5.2     9.2    57     14.1    17.6    80 
 SOUTH PASS               9040     8.4    15.8    53     16.6    23.6    70 
 ST. LAWRENCE ALT         8620      .9     4.7    19     10.8    12.9    84 
 TOGWOTEE PASS            9580    25.9    27.6    94     27.4    30.0    91 
 TOWNSEND CREEK           8700     2.7     7.2    38     14.3    16.4    87 
                                                -----                  -----
                Basin wide percent of average     75                     85 


BIGHORN BASIN

 BALD MTN.                9380    21.2    23.3    91     20.9    22.3    94 
 BEAR TRAP MEADOW         8200     1.7     1.5   113     11.7    11.8    99 
 BLACKWATER               9780    30.5    28.8   106     26.7    25.8   103 
 BONE SPRINGS DIV         9350    18.7    17.1   109     20.3    19.3   105 
 EVENING STAR             9200    33.7    32.8   103     37.4    31.1   120 
 GRAVE SPRINGS            8550     6.2     9.3    67     11.8    13.9    85 
 KIRWIN                   9550    14.1    11.9   118     15.8    15.1   105 
 MARQUETTE                8760    15.8     9.9   160     18.8    14.8   127 
 MIDDLE POWDER            7760     8.7    12.5    70     10.9    16.7    65 
 OWL CREEK                8975     1.4     3.0    47      8.8     8.9    99 
 POWDER RIVER PASS        9480     9.6     9.2   104     16.2    16.8    96 
 SHELL CREEK              9580    16.7    16.5   101     17.3    17.8    97 
 SYLVAN LAKE              8420    23.2    21.8   106     29.1    25.8   113 
 SYLVAN ROAD              7120     8.7     5.0   174     21.0    21.2    99 
 TIMBER CREEK             7950     4.3     3.3   130     11.8    11.5   103 
 YOUNTS PEAK              8350    16.4    16.6    99     18.7    19.7    95 
                                                -----                  -----
                Basin wide percent of average    104                    102 


SHOSHONE RIVER

 BLACKWATER               9780    30.5    28.8   106     26.7    25.8   103 
 EVENING STAR             9200    33.7    32.8   103     37.4    31.1   120 
 KIRWIN                   9550    14.1    11.9   118     15.8    15.1   105 
 MARQUETTE                8760    15.8     9.9   160     18.8    14.8   127 
 SYLVAN LAKE              8420    23.2    21.8   106     29.1    25.8   113 
 SYLVAN ROAD              7120     8.7     5.0   174     21.0    21.2    99 
 YOUNTS PEAK              8350    16.4    16.6    99     18.7    19.7    95 
                                                -----                  -----
                Basin wide percent of average    112                    109 


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     1.7     1.5   113     11.7    11.8    99 
 BIG GOOSE                7990    11.4    10.2   112     17.2    13.8   125 
 BONE SPRINGS DIV         9350    18.7    17.1   109     20.3    19.3   105 
 BURGESS JUNCTION         7880    13.6    11.5   118     17.6    16.2   109 
 CLOUD PEAK RESERVOIR     9860    17.5    15.4   114     18.6    18.3   102 
 DOME LAKE                8880    12.0    11.7   103     19.4    17.8   109 
 GRAVE SPRINGS            8550     6.2     9.3    67     11.8    13.9    85 
 HANSEN SAWMILL           8360     3.1     3.4    91     14.0    11.8   119 
 MIDDLE POWDER            7760     8.7    12.5    70     10.9    16.7    65 
 POWDER RIVER PASS        9480     9.6     9.2   104     16.2    16.8    96 
 SUCKER CREEK             8880    14.8    11.4   130     20.5    18.5   111 
 TIE CREEK                6870     3.4     2.4   142     18.2    14.5   126 
                                                -----                  -----
                Basin wide percent of average    104                    104 


BELLE FOURCHE

 BLIND PARK               6890      .0     1.8     0     13.8    15.2    91 
 COLE CANYON              5910      .0      -M      *    11.1      -M      *
 NORTH RAPID CREEK        6130      .0     2.0     0     12.1    12.1   100 
                                                -----                  -----
                Basin wide percent of average      0                     95 


UPPER N. PLATTE RIVER

 COLUMBINE                9400    17.9    16.4   109     30.4    30.0   101 
 DIVIDE PEAK              8800    19.0    15.6   122     26.6    25.1   106 
 ELK RIVER                8700    12.4    10.8   115     24.4    23.8   103 
 JOE WRIGHT              10120    31.1    24.4   127     36.6    31.3   117 
 NORTH FRENCH CREEK      10100    37.0    33.8   109     36.4    30.9   118 
 OLD BATTLE              10000    36.5    36.1   101     40.3    41.0    98 
 SAGE CREEK BASIN         7850      .3     9.0     3     15.6    14.6   107 
 SOUTH BRUSH CREEK        8400    10.1     8.5   119     22.7    21.0   108 
 TOWER                   10500    52.6    51.8   102     52.7    46.4   114 
 WEBBER SPRINGS           9200    17.1    21.1    81     30.3    32.0    95 
 WILLOW CREEK PASS        9540    21.4    12.5   171     19.9    16.5   121 
                                                -----                  -----
                Basin wide percent of average    106                    107 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    19.1    25.3    75     25.8    28.1    92 
 CASPER MTN.              7900    10.2    14.0    73     15.8    20.7    76 
 DEADMAN HILL            10220    19.7    18.7   105     24.0    22.0   109 
 DEER PARK                9700    13.2    17.8    74     20.9    28.0    75 
 LAPRELE CREEK            8320     4.9     5.1    96     15.9    17.4    91 
 RENO HILL                8400    13.9    11.8   118     19.6    21.4    92 
 ROACH                    9700    17.2    15.6   110     24.0    23.4   103 
 SAND LAKE               10080    32.9    36.1    91     29.5    30.6    96 
 SOUTH PASS               9040     8.4    15.8    53     16.6    23.6    70 
 WINDY PEAK               7840     5.9     3.1   190     16.1    14.4   112 
                                                -----                  -----
                Basin wide percent of average     89                     91 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .1     2.3     4     19.6    19.2   102 
 DIVIDE PEAK              8800    19.0    15.6   122     26.6    25.1   106 
 OLD BATTLE              10000    36.5    36.1   101     40.3    41.0    98 
 SANDSTONE RS             8150     3.8     6.2    61     23.2    22.6   103 
 WHISKEY PARK             8950    30.6    28.2   109     34.0    34.8    98 
                                                -----                  -----
                Basin wide percent of average    102                    101 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100     8.6    10.9    79     14.3    16.6    86 
 BLIND BULL SUM           8650    22.8    26.2    87     19.2    25.9    74 
 EAST RIM DIVIDE          7930     6.6    10.9    61     11.4    14.5    79 
 ELKHART PARK G.S.        9400     9.7    10.9    89     14.3    16.8    85 
 GROS VENTRE SUMMIT       8775     9.5    11.4    83     13.7    15.9    86 
 KENDALL R.S.             7740      .0     6.4     0     14.6    17.1    85 
 LOOMIS PARK              8240     6.9    11.7    59     18.2    20.6    88 
 NEW FORK LAKE            8340     3.2     5.8    55       -M    14.0      *
 SNIDER BASIN             8250     4.1     9.8    42     14.6    19.0    77 
 SPRING CREEK DIVIDE      9000      -M    26.4      *      -M    30.9      *
 TRIPLE PEAK              8500    15.7    19.9    79     29.7    29.5   101 
                                                -----                  -----
                Basin wide percent of average     70                     85 


LOWER GREEN RIVER

 HAMS FORK                7840      .3     3.2     9     13.0    15.3    85 
 HEWINTA                  9500     3.5     6.6    53     14.7    18.4    80 
 HICKERSON PARK           9150      .0     3.6     0     10.0    10.8    93 
 HOLE-IN-ROCK             9150      .3     3.0    10     10.9    10.3   106 
 INDIAN CREEK             9425    22.2    25.7    86     22.4    30.3    74 
 KELLEY R.S.              8180     7.8    11.2    70     15.9    24.3    65 
 STEEL CREEK PARK        10100    17.2    18.3    94     17.1    21.0    81 
                                                -----                  -----
                Basin wide percent of average     72                     80 


UPPER BEAR RIVER

 BUG LAKE                 7950    10.4    13.9    75     18.8    23.1    81 
 HAYDEN FORK              9400     4.8     9.7    49     21.8    26.0    84 
 KELLEY R.S.              8180     7.8    11.2    70     15.9    24.3    65 
 LILY LAKE                9050     2.7     8.4    32     18.0    21.9    82 
 MONTE CRISTO             8960    10.6    25.1    42     25.0    31.3    80 
 SALT RIVER SUMMIT        7600     1.7     7.3    23     15.5    22.2    70 
 TRIAL LAKE               9960    14.1    24.6    57     21.3    30.4    70 
                                                -----                  -----
                Basin wide percent of average     52                     76 

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


 -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.