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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: APRIL 15 , 2002 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     9.4    16.8    56     20.3    22.9    89 
 COTTONWOOD CREEK         7600    15.2    23.8    64     21.5    29.6    73 
 GRANITE CREEK            6770     9.7    17.0    57     16.3    21.1    77 
 GRASSY LAKE              7265      -M    37.0      *      -M    38.3      *
 GROS VENTRE SUMMIT       8775      -M    14.6      *      -M    14.0      *
 LEWIS LAKE DIVIDE        7860    28.3    36.7    77     33.4    39.1    85 
 PHILLIPS BENCH           8200    22.6    30.6    74     25.4    31.0    82 
 SALT RIVER SUMMIT        7600     7.8    14.4    54     13.4    20.1    67 
 SNAKE RIVER STATION      6920    11.5    17.5    66     22.0    23.8    92 
 SPRING CREEK DIVIDE      9000    21.2    28.5    74     21.0    28.2    74 
 THUMB DIVIDE             7980    14.6    18.7    78     19.3    20.4    95 
 TOGWOTEE PASS            9580    21.4    26.7    80     20.8    26.6    78 
 TWO OCEAN PLATEAU        9360    28.6    30.6    93     26.5    29.8    89 
 WILLOW CREEK             8450      -M    31.9      *      -M    34.8      *
                                                -----                  -----
                Basin wide percent of average     73                     82 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    22.3    25.5    87     20.9    22.4    93 
 BLACK BEAR               8170      -M    40.9      *      -M    42.1      *
 CANYON                   8090    12.4    13.9    89     15.8    17.1    92 
 FISHER CREEK             9100    35.1    37.0    95     33.6    33.7   100 
 MADISON PLATEAU          7750    21.6    26.1    83     27.1    27.8    97 
 NORTHEAST ENTRANCE       7350     4.5    10.7    42     11.0    13.5    81 
 PARKER PEAK              9400    20.6    23.4    88     17.4    19.5    89 
 SYLVAN LAKE              8420    19.7    24.2    81     23.3    25.1    93 
 THUMB DIVIDE             7980    14.6    18.7    78     19.3    20.4    95 
 TWO OCEAN PLATEAU        9360    28.6    30.6    93     26.5    29.8    89 
 WHISKEY CREEK            6800    14.3    17.8    80     21.5    22.5    96 
 WHITE MILL               8700    22.4    26.0    86     20.8    26.8    78 
 WOLVERINE                7650     3.1    11.0    28     10.9    14.2    77 
                                                -----                  -----
                Basin wide percent of average     83                     91 


WIND RIVER

 BURROUGHS CREEK          8750    14.2    15.1    94     15.3    18.1    85 
 COLD SPRINGS             9630      .6     7.1     8      7.0    12.3    57 
 DEER PARK                9700    11.5    17.1    67     15.9      -M      *
 HOBBS PARK              10100     9.7    16.8    58     10.5    14.9    70 
 LITTLE WARM              9370     8.7    12.5    70     12.6    14.2    89 
 SOUTH PASS               9040    10.2    17.7    58     11.8    19.5    61 
 ST. LAWRENCE ALT         8620      .4     7.3     5      6.1    10.2    60 
 TOGWOTEE PASS            9580    21.4    26.7    80     20.8    26.6    78 
 TOWNSEND CREEK           8700     3.0     9.8    31      6.7    13.6    49 
                                                -----                  -----
                Basin wide percent of average     61                     70 


BIGHORN BASIN

 BALD MTN.                9380    15.6    21.9    71     14.6    19.3    76 
 BEAR TRAP MEADOW         8200      -M     4.7      *     8.0     9.8    82 
 BLACKWATER               9780    22.3    26.9    83     20.0    22.9    87 
 BONE SPRINGS DIV         9350    12.7    17.7    72     13.5    17.3    78 
 EVENING STAR             9200    25.1    32.0    78     27.5    28.8    95 
 GRAVE SPRINGS            8550     5.7    10.7    53      8.7    15.1    58 
 KIRWIN                   9550     9.9    12.3    80     11.0    12.8    86 
 MARQUETTE                8760     6.3    10.6    59      7.4    11.3    65 
 MIDDLE POWDER            7760     6.0    14.0    43      8.3    13.8    60 
 OWL CREEK                8975     1.4     5.2    27      4.7     7.1    66 
 POWDER RIVER PASS        9480     7.6    11.9    64     11.6    14.0    83 
 SHELL CREEK              9580    13.0    16.1    81     12.7    15.1    84 
 SYLVAN LAKE              8420    19.7    24.2    81     23.3    25.1    93 
 SYLVAN ROAD              7120      -M    12.1      *    16.8    20.8    81 
 TIMBER CREEK             7950      -M     5.7      *     5.3     9.4    56 
 YOUNTS PEAK              8350    13.9    18.1    77     15.8    17.5    90 
                                                -----                  -----
                Basin wide percent of average     72                     80 


SHOSHONE RIVER

 BLACKWATER               9780    22.3    26.9    83     20.0    22.9    87 
 EVENING STAR             9200    25.1    32.0    78     27.5    28.8    95 
 KIRWIN                   9550     9.9    12.3    80     11.0    12.8    86 
 MARQUETTE                8760     6.3    10.6    59      7.4    11.3    65 
 SYLVAN LAKE              8420    19.7    24.2    81     23.3    25.1    93 
 SYLVAN ROAD              7120      -M    12.1      *    16.8    20.8    81 
 YOUNTS PEAK              8350    13.9    18.1    77     15.8    17.5    90 
                                                -----                  -----
                Basin wide percent of average     78                     88 


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      -M     4.7      *     8.0     9.8    82 
 BIG GOOSE                7990     7.7    12.4    62     11.0    11.8    93 
 BONE SPRINGS DIV         9350    12.7    17.7    72     13.5    17.3    78 
 BURGESS JUNCTION         7880     8.8    13.2    67     10.4    13.6    76 
 CLOUD PEAK RESERVOIR     9860      -M    15.3      *    13.2    15.7    84 
 DOME LAKE                8880     9.4    14.0    67     12.7    15.0    85 
 GRAVE SPRINGS            8550     5.7    10.7    53      8.7    15.1    58 
 HANSEN SAWMILL           8360     2.8     6.2    45      8.3     9.9    84 
 MIDDLE POWDER            7760     6.0    14.0    43      8.3    13.8    60 
 POWDER RIVER PASS        9480     7.6    11.9    64     11.6    14.0    83 
 SUCKER CREEK             8880     9.7    13.5    72     13.8    15.6    88 
 TIE CREEK                6870     2.6     5.3    49     10.6    11.4    93 
                                                -----                  -----
                Basin wide percent of average     61                     80 


BELLE FOURCHE

 BLIND PARK               6890     2.5     7.6    33      9.9    12.0    82 
 COLE CANYON              5910     2.8     5.8    48      7.4      -M      *
 NORTH RAPID CREEK        6130     3.3     8.8    37      7.5     9.8    77 
                                                -----                  -----
                Basin wide percent of average     39                     80 


UPPER N. PLATTE RIVER

 COLUMBINE                9400     8.9    24.7    36     18.8    27.0    70 
 DIVIDE PEAK              8800    11.6    20.9    56     17.5    22.3    78 
 ELK RIVER                8700     8.2    19.6    42     15.4    21.1    73 
 JOE WRIGHT              10120    21.9    23.6    93     19.7    27.1    73 
 NORTH FRENCH CREEK      10100    15.4    32.6    47     20.2    26.9    75 
 OLD BATTLE              10000    20.3    34.7    59     24.6    37.0    66 
 SAGE CREEK BASIN         7850     3.9      -M      *    11.7      -M      *
 SOUTH BRUSH CREEK        8400     6.5    13.3    49     12.0    18.0    67 
 TOWER                   10500    28.4    49.5    57     28.1    41.4    68 
 WEBBER SPRINGS           9200    12.3    26.1    47     18.4    28.7    64 
 WILLOW CREEK PASS        9540     8.2    13.6    60      9.7    14.1    69 
                                                -----                  -----
                Basin wide percent of average     55                     70 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    12.6    26.5    48     14.4    24.2    60 
 CASPER MTN.              7900     6.2    16.8    37      9.9    16.7    59 
 DEADMAN HILL            10220    10.2    18.3    56     12.1    18.7    65 
 DEER PARK                9700    11.5    17.1    67     15.9      -M      *
 LAPRELE CREEK            8320     3.2    10.2    31     10.2    14.3    71 
 RENO HILL                8400     8.3    15.9    52     10.7    17.2    62 
 ROACH                    9700     7.4    18.4    40     12.0    20.3    59 
 SAND LAKE               10080    21.1    35.0    60     20.0    26.4    76 
 SOUTH PASS               9040    10.2    17.7    58     11.8    19.5    61 
 WINDY PEAK               7840     2.8     8.0    35      8.9    11.9    75 
                                                -----                  -----
                Basin wide percent of average     51                     65 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     2.3     8.7    26     10.3    17.1    60 
 DIVIDE PEAK              8800    11.6    20.9    56     17.5    22.3    78 
 OLD BATTLE              10000    20.3    34.7    59     24.6    37.0    66 
 SANDSTONE RS             8150     3.3    13.4    25     13.6    20.1    68 
 WHISKEY PARK             8950    18.1    30.7    59     21.5    31.0    69 
                                                -----                  -----
                Basin wide percent of average     51                     69 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100      -M    15.3      *      -M    14.5      *
 BLIND BULL SUM           8650    20.9    28.9    72     17.6    23.7    74 
 EAST RIM DIVIDE          7930    10.1    14.0    72     10.4    12.9    81 
 ELKHART PARK G.S.        9400      -M    14.0      *      -M    14.6      *
 GROS VENTRE SUMMIT       8775      -M    14.6      *      -M    14.0      *
 KENDALL R.S.             7740     6.5    13.6    48     13.0    15.5    84 
 LOOMIS PARK              8240    13.5    17.1    79     14.9    18.6    80 
 NEW FORK LAKE            8340     7.3    11.3    65      9.2    12.3    75 
 SNIDER BASIN             8250      -M    14.9      *      -M    17.3      *
 SPRING CREEK DIVIDE      9000    21.2    28.5    74     21.0    28.2    74 
 TRIPLE PEAK              8500    17.9    25.9    69     23.1    26.6    87 
                                                -----                  -----
                Basin wide percent of average     70                     79 


LOWER GREEN RIVER

 HAMS FORK                7840     4.2    10.0    42      8.6    13.4    64 
 HEWINTA                  9500      -M    12.3      *      -M    16.0      *
 HICKERSON PARK           9150     1.0     8.3    12      7.6     8.9    85 
 HOLE-IN-ROCK             9150     1.6     7.3    22      7.6     8.5    89 
 INDIAN CREEK             9425    20.1    29.6    68     18.0    27.3    66 
 KELLEY R.S.              8180      -M    17.2      *      -M    21.8      *
 STEEL CREEK PARK        10100      -M    17.3      *      -M    18.0      *
                                                -----                  -----
                Basin wide percent of average     49                     72 


UPPER BEAR RIVER

 BUG LAKE                 7950    14.1    21.7    65     16.3    20.8    78 
 HAYDEN FORK              9400     6.2    16.5    38     17.7    22.9    77 
 KELLEY R.S.              8180      -M    17.2      *      -M    21.8      *
 LILY LAKE                9050     6.6    14.5    46     14.4    19.1    75 
 MONTE CRISTO             8960    19.3    30.6    63     23.5    27.7    85 
 SALT RIVER SUMMIT        7600     7.8    14.4    54     13.4    20.1    67 
 TRIAL LAKE               9960    13.2    26.4    50     19.2    27.0    71 
                                                -----                  -----
                Basin wide percent of average     54                     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.