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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 SUNDAY: APRIL 13 , 2003 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    17.3    17.0   102     23.0    22.8   101 
 COTTONWOOD CREEK         7600    20.8    23.9    87     25.1    29.4    85 
 GRANITE CREEK            6770    12.4    17.2    72     17.4    21.0    83 
 GRASSY LAKE              7265    32.8    36.9    89     33.8    38.2    88 
 GROS VENTRE SUMMIT       8775    12.5    14.6    86     12.1    13.9    87 
 LEWIS LAKE DIVIDE        7860      -M    36.6      *      -M    39.0      *
 PHILLIPS BENCH           8200      -M    30.4      *      -M    30.9      *
 SALT RIVER SUMMIT        7600    10.8    14.4    75     14.7    20.0    74 
 SNAKE RIVER STATION      6920    12.5    17.7    71     21.8    23.7    92 
 SPRING CREEK DIVIDE      9000    26.3    28.3    93     24.3    28.2    86 
 THUMB DIVIDE             7980    14.9    18.8    79     17.0    20.3    84 
 TOGWOTEE PASS            9580    24.0    26.5    91     24.8    26.5    94 
 TWO OCEAN PLATEAU        9360    31.6    30.3   104     27.4    29.6    93 
 WILLOW CREEK             8450    28.1    31.7    89     34.7    34.6   100 
                                                -----                  -----
                Basin wide percent of average     88                     90 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    26.8    25.2   106     23.5    21.6   109 
 BLACK BEAR               8170    33.8    40.7    83     31.4    42.9    73 
 CANYON                   8090    12.7    13.9    91     15.0    16.4    91 
 FISHER CREEK             9100    36.7    36.8   100     35.0    38.8    90 
 MADISON PLATEAU          7750    20.0    26.0    77     20.3    28.4    71 
 NORTHEAST ENTRANCE       7350     9.4    10.8    87     13.6    13.6   100 
 PARKER PEAK              9400    25.6    23.2   110     21.0    17.6   119 
 SYLVAN LAKE              8420    20.6    24.0    86     23.9    22.5   106 
 THUMB DIVIDE             7980    14.9    18.8    79     17.0    20.3    84 
 TWO OCEAN PLATEAU        9360    31.6    30.3   104     27.4    29.6    93 
 WHISKEY CREEK            6800      -M    17.7      *      -M    22.4      *
 WHITE MILL               8700    27.4    25.8   106     24.2    28.9    84 
 WOLVERINE                7650    10.7    11.1    96     12.8    13.8    93 
                                                -----                  -----
                Basin wide percent of average     94                     90 


WIND RIVER

 BURROUGHS CREEK          8750    17.6    15.1   117     19.6    17.6   111 
 COLD SPRINGS             9630     7.1     7.4    96     10.9    12.0    91 
 DEER PARK                9700    14.8    17.1    87     18.5    24.1    77 
 HOBBS PARK              10100    14.3    16.6    86     14.2    14.5    98 
 LITTLE WARM              9370     9.0    12.4    73     11.6    14.8    78 
 SOUTH PASS               9040    14.0    17.6    80     15.2    20.2    75 
 ST. LAWRENCE ALT         8620     7.0     7.3    96      9.3    10.2    91 
 TOGWOTEE PASS            9580    24.0    26.5    91     24.8    26.5    94 
 TOWNSEND CREEK           8700    10.0     9.7   103     12.9    13.2    98 
                                                -----                  -----
                Basin wide percent of average     91                     89 


BIGHORN BASIN

 BALD MTN.                9380    18.9    21.6    87     18.0    19.0    95 
 BEAR TRAP MEADOW         8200     6.3     4.8   131      8.9     9.3    96 
 BLACKWATER               9780    26.4    26.6    99     23.2    22.3   104 
 BONE SPRINGS DIV         9350    17.8    17.5   102     17.2    16.1   107 
 EVENING STAR             9200    30.1    31.7    95     32.7    27.3   120 
 GRAVE SPRINGS            8550     6.8    10.5    65      8.5    11.1    77 
 KIRWIN                   9550    12.3    12.2   101     13.7    12.5   110 
 MARQUETTE                8760    12.2    10.4   117     14.2    11.4   125 
 MIDDLE POWDER            7760     8.9    13.7    65      7.8    13.8    57 
 OWL CREEK                8975     5.4     5.3   102      6.6     6.8    97 
 POWDER RIVER PASS        9480    10.6    11.8    90     13.0    13.8    94 
 SHELL CREEK              9580    16.1    15.9   101     15.0    14.8   101 
 SYLVAN LAKE              8420    20.6    24.0    86     23.9    22.5   106 
 SYLVAN ROAD              7120    12.3    12.2   101     18.0    18.9    95 
 TIMBER CREEK             7950     5.9     5.7   104      7.6     8.6    88 
 YOUNTS PEAK              8350    16.8    18.0    93     17.0    17.3    98 
                                                -----                  -----
                Basin wide percent of average     94                    100 


SHOSHONE RIVER

 BLACKWATER               9780    26.4    26.6    99     23.2    22.3   104 
 EVENING STAR             9200    30.1    31.7    95     32.7    27.3   120 
 KIRWIN                   9550    12.3    12.2   101     13.7    12.5   110 
 MARQUETTE                8760    12.2    10.4   117     14.2    11.4   125 
 SYLVAN LAKE              8420    20.6    24.0    86     23.9    22.5   106 
 SYLVAN ROAD              7120    12.3    12.2   101     18.0    18.9    95 
 YOUNTS PEAK              8350    16.8    18.0    93     17.0    17.3    98 
                                                -----                  -----
                Basin wide percent of average     97                    108 


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     6.3     4.8   131      8.9     9.3    96 
 BIG GOOSE                7990    12.0    12.2    98     14.3    10.3   139 
 BONE SPRINGS DIV         9350    17.8    17.5   102     17.2    16.1   107 
 BURGESS JUNCTION         7880    12.5    13.0    96     13.6    13.5   101 
 CLOUD PEAK RESERVOIR     9860    16.2    15.0   108     15.0    14.6   103 
 DOME LAKE                8880    13.4    13.8    97     15.8    14.6   108 
 GRAVE SPRINGS            8550     6.8    10.5    65      8.5    11.1    77 
 HANSEN SAWMILL           8360     8.3     6.2   134     10.7     9.3   115 
 MIDDLE POWDER            7760     8.9    13.7    65      7.8    13.8    57 
 POWDER RIVER PASS        9480    10.6    11.8    90     13.0    13.8    94 
 SUCKER CREEK             8880    14.4    13.3   108     16.2    15.1   107 
 TIE CREEK                6870     6.4     5.4   119     13.6    11.3   120 
                                                -----                  -----
                Basin wide percent of average     97                    101 


BELLE FOURCHE

 BLIND PARK               6890     5.0     7.8    64     10.4    12.3    85 
 COLE CANYON              5910     1.7      -M      *     7.3      -M      *
 NORTH RAPID CREEK        6130      -M     8.7      *     8.5     9.7    88 
                                                -----                  -----
                Basin wide percent of average     64*                    86 


UPPER N. PLATTE RIVER

 COLUMBINE                9400    22.3    24.7    90     25.4    26.9    94 
 DIVIDE PEAK              8800    21.8    20.8   105     21.8    22.2    98 
 ELK RIVER                8700    16.9    19.6    86     19.9    21.0    95 
 JOE WRIGHT              10120    25.2    23.3   108     29.6    27.0   110 
 NORTH FRENCH CREEK      10100    32.3    32.2   100     31.1    26.8   116 
 OLD BATTLE              10000    31.0    34.4    90     34.8    36.8    95 
 SAGE CREEK BASIN         7850     8.6    12.0    72     12.9    12.9   100 
 SOUTH BRUSH CREEK        8400    12.4    13.3    93     18.2    17.9   102 
 TOWER                   10500    44.9    49.0    92       -M    41.2      *
 WEBBER SPRINGS           9200    21.3    26.1    82     26.2    28.5    92 
 WILLOW CREEK PASS        9540    16.2    13.4   121     14.7    14.0   105 
                                                -----                  -----
                Basin wide percent of average     94                    100 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    18.5    26.1    71     22.0    24.1    91 
 CASPER MTN.              7900    15.0    16.5    91     12.8    16.4    78 
 DEADMAN HILL            10220    14.9    18.0    83     18.7    18.6   101 
 DEER PARK                9700    14.8    17.1    87     18.5    24.1    77 
 LAPRELE CREEK            8320     7.8    10.3    76     11.4    14.2    80 
 RENO HILL                8400    12.8    15.7    82     14.7    17.1    86 
 ROACH                    9700    17.4    18.2    96     20.3    20.2   100 
 SAND LAKE               10080    26.9    34.7    78     21.8    26.2    83 
 SOUTH PASS               9040    14.0    17.6    80     15.2    20.2    75 
 WINDY PEAK               7840     9.2     8.0   115     11.7    11.8    99 
                                                -----                  -----
                Basin wide percent of average     83                     87 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     6.9     9.0    77     16.0    17.0    94 
 DIVIDE PEAK              8800    21.8    20.8   105     21.8    22.2    98 
 OLD BATTLE              10000    31.0    34.4    90     34.8    36.8    95 
 SANDSTONE RS             8150    11.9    13.6    88     18.8    20.0    94 
 WHISKEY PARK             8950    28.2    30.7    92     28.2    30.8    92 
                                                -----                  -----
                Basin wide percent of average     92                     94 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    11.4    15.2    75     11.5    14.5    79 
 BLIND BULL SUM           8650    22.7    28.8    79     17.6    23.6    75 
 EAST RIM DIVIDE          7930    10.6    13.9    76     10.6    12.9    82 
 ELKHART PARK G.S.        9400    12.5    13.9    90     13.0    14.4    90 
 GROS VENTRE SUMMIT       8775    12.5    14.6    86     12.1    13.9    87 
 KENDALL R.S.             7740    10.5    13.7    77     13.6    15.5    88 
 LOOMIS PARK              8240    15.5    17.2    90     16.5    18.5    89 
 NEW FORK LAKE            8340     9.8    11.3    87       -M    12.2      *
 SNIDER BASIN             8250    12.7    14.9    85     13.7    17.2    80 
 SPRING CREEK DIVIDE      9000    26.3    28.3    93     24.3    28.2    86 
 TRIPLE PEAK              8500    23.0    25.8    89     27.2    26.5   103 
                                                -----                  -----
                Basin wide percent of average     85                     86 


LOWER GREEN RIVER

 HAMS FORK                7840     8.7    10.3    84     11.2    13.3    84 
 HEWINTA                  9500     8.1    12.3    66     12.7    15.9    80 
 HICKERSON PARK           9150     5.3     8.2    65      9.0     8.9   101 
 HOLE-IN-ROCK             9150     7.5     7.3   103      9.8     8.4   117 
 INDIAN CREEK             9425    23.3    29.4    79     20.4    27.2    75 
 KELLEY R.S.              8180    12.7    17.2    74     15.1    21.8    69 
 STEEL CREEK PARK        10100    14.1    17.1    82     14.0    17.9    78 
                                                -----                  -----
                Basin wide percent of average     78                     81 


UPPER BEAR RIVER

 BUG LAKE                 7950    16.0    21.6    74     16.7    20.7    81 
 HAYDEN FORK              9400    10.7    16.5    65     18.8    22.8    82 
 KELLEY R.S.              8180    12.7    17.2    74     15.1    21.8    69 
 LILY LAKE                9050    10.0    14.4    69     15.3    19.0    81 
 MONTE CRISTO             8960    14.5    30.5    48     21.8    27.5    79 
 SALT RIVER SUMMIT        7600    10.8    14.4    75     14.7    20.0    74 
 TRIAL LAKE               9960    13.5    26.2    52     17.1    26.9    64 
                                                -----                  -----
                Basin wide percent of average     63                     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.