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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: APRIL 25 , 2000 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     6.5    12.7    51     20.6    24.7    83 
 COTTONWOOD CREEK         7600    18.2    21.2    86       -M    27.7      *
 GRANITE CREEK            6770     7.7    14.7    52     18.3    26.2    70 
 GRASSY LAKE              7265    24.7    35.4    70     32.4    41.1    79 
 GROS VENTRE SUMMIT       8775    10.1    14.7    69     11.7    17.7    66 
 LEWIS LAKE DIVIDE        7860      -M    35.3      *    29.8    41.8    71 
 PHILLIPS BENCH           8200    22.3    30.0    74     23.3    33.0    71 
 SALT RIVER SUMMIT        7600     8.5    11.9    71     15.2    18.8    81 
 SNAKE RIVER STATION      6920     6.7    17.2    39     21.1    28.9    73 
 SPRING CREEK DIVIDE      9000    22.0    29.5    75     22.8    30.3    75 
 THUMB DIVIDE             7980      -M    16.0      *      -M    23.1      *
 TOGWOTEE PASS            9580    23.1    27.8    83     25.4    31.3    81 
 TWO OCEAN PLATEAU        9360    26.1    27.2    96     24.9    34.0    73 
 WILLOW CREEK             8450    25.8    31.8    81     31.7    35.5    89 
                                                -----                  -----
                Basin wide percent of average     74                     76 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    21.9    25.8    85     20.7    20.6   100 
 BLACK BEAR               7950      -M    40.0      *    36.7    45.5    81 
 CANYON                   7940    11.0    11.9    92     15.5    15.9    97 
 FISHER CREEK             9100      -M    38.4      *    33.5    41.2    81 
 MADISON PLATEAU          7750    17.6    24.5    72     23.9    29.3    82 
 NORTHEAST ENTRANCE       7350     4.5     7.1    63     13.6    13.5   101 
 PARKER PEAK              9400    18.2    23.5    77       -M    17.7      *
 SYLVAN LAKE              8420    17.9    23.8    75     23.5    21.7   108 
 THUMB DIVIDE             7980      -M    16.0      *      -M    23.1      *
 TWO OCEAN PLATEAU        9360    26.1    27.2    96     24.9    34.0    73 
 WHISKEY CREEK            6800    11.3    16.3    69     18.0    24.4    74 
 WHITE MILL               8700    25.5    26.1    98     23.0    31.8    72 
 WOLVERINE                7650     2.9     9.5    31     11.4    14.7    78 
                                                -----                  -----
                Basin wide percent of average     80                     84 


WIND RIVER

 BURROUGHS CREEK          8750      -M    13.8      *      -M    18.9      *
 COLD SPRINGS             9630     2.3     7.5    31      9.6    12.6    76 
 DEER PARK                9700    15.5      -M      *    20.2      -M      *
 HOBBS PARK              10100    11.6    17.4    67     11.8    16.7    71 
 LITTLE WARM              9620     9.9    11.6    85     14.0    15.7    89 
 SOUTH PASS               9040    14.4    17.9    80     17.4    19.9    87 
 ST. LAWRENCE ALT         8620      .1     6.0     2      7.1    12.0    59 
 TOGWOTEE PASS            9580    23.1    27.8    83     25.4    31.3    81 
 TOWNSEND CREEK           8700     5.9     9.8    60     10.7    14.9    72 
                                                -----                  -----
                Basin wide percent of average     69                     78 


BIGHORN BASIN

 BALD MTN.                9375    22.3    23.4    95     21.1    20.1   105 
 BEAR TRAP MEADOW         7900      .4     5.2     8      7.9    10.1    78 
 BLACKWATER               9780    19.2    25.3    76     18.4    20.1    92 
 BONE SPRINGS DIV         9350    17.1    18.3    93     17.5    17.5   100 
 EVENING STAR             9200    22.9    30.2    76     26.5    25.3   105 
 GRAVE SPRINGS            8550     7.9    11.2    71     10.0    11.8    85 
 KIRWIN                   9550     9.9    11.5    86     12.4    12.8    97 
 MARQUETTE                8760     7.6     8.6    88      8.5    12.7    67 
 MIDDLE POWDER            7760    11.5    14.3    80     10.7    14.2    75 
 OWL CREEK                8975      .4     3.9    10      5.4     7.7    70 
 POWDER RIVER PASS        9480     8.3    10.9    76     13.5    14.1    96 
 SHELL CREEK              9580    15.7    16.7    94     14.9    15.3    97 
 SYLVAN LAKE              8420    17.9    23.8    75     23.5    21.7   108 
 SYLVAN ROAD              8120     7.9     9.0    88     16.4    18.1    91 
 TIMBER CREEK             7950     1.9     6.2    31      6.9     9.4    73 
 YOUNTS PEAK              8350    15.7    18.3    86     15.1    18.8    80 
                                                -----                  -----
                Basin wide percent of average     79                     92 


SHOSHONE RIVER

 BLACKWATER               9780    19.2    25.3    76     18.4    20.1    92 
 EVENING STAR             9200    22.9    30.2    76     26.5    25.3   105 
 KIRWIN                   9550     9.9    11.5    86     12.4    12.8    97 
 MARQUETTE                8760     7.6     8.6    88      8.5    12.7    67 
 SYLVAN LAKE              8420    17.9    23.8    75     23.5    21.7   108 
 SYLVAN ROAD              8120     7.9     9.0    88     16.4    18.1    91 
 YOUNTS PEAK              8350    15.7    18.3    86     15.1    18.8    80 
                                                -----                  -----
                Basin wide percent of average     80                     93 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900      .4     5.2     8      7.9    10.1    78 
 BIG GOOSE                7990     8.1      -M      *    11.7      -M      *
 BONE SPRINGS DIV         9350    17.1    18.3    93     17.5    17.5   100 
 BURGESS JUNCTION         7880    13.1    13.3    98     14.6    13.8   106 
 CLOUD PEAK RESERVOIR     9860    17.6    17.4   101     16.4    16.3   101 
 DOME LAKE                8880    11.1    14.9    74     15.6    15.8    99 
 GRAVE SPRINGS            8550     7.9    11.2    71     10.0    11.8    85 
 HANSEN SAWMILL           8760     2.9     7.2    40      9.5     9.8    97 
 MIDDLE POWDER            7760    11.5    14.3    80     10.7    14.2    75 
 POWDER RIVER PASS        9480     8.3    10.9    76     13.5    14.1    96 
 SUCKER CREEK             8880    13.0    13.6    96     17.8    15.8   113 
 TIE CREEK                6870     3.8      -M      *    12.5    13.2    95 
                                                -----                  -----
                Basin wide percent of average     81                     96 


BELLE FOURCHE

 BLIND PARK               6890     2.9    10.3    28     11.6    13.0    89 
 NORTH RAPID CREEK        6130     5.5      -M      *    11.0      -M      *
 WARREN PEAK              6520     8.9    10.3    86     11.4     9.8   116 
                                                -----                  -----
                Basin wide percent of average     57                    101 


UPPER N. PLATTE RIVER

 COLUMBINE                9400    22.5    23.0    98     28.3    27.4   103 
 DIVIDE PEAK              8800    13.4    20.2    66     19.1    26.4    72 
 ELK RIVER                8700    13.1    17.8    74     19.9    21.5    93 
 JOE WRIGHT              10120      -M    24.5      *      -M    29.2      *
 NORTH FRENCH CREEK      10100    27.8    28.9    96     26.9    27.1    99 
 OLD BATTLE              10000    28.4    37.3    76     32.8    34.6    95 
 SOUTH BRUSH CREEK        8400     7.8    11.5    68     14.2    19.7    72 
 TOWER                   10500    47.0    50.3    93     44.8    41.8   107 
 WEBBER SPRINGS           9200    19.0    27.0    70     24.2    29.5    82 
 WILLOW CREEK PASS        9540    18.1    13.5   134     17.3    14.8   117 
                                                -----                  -----
                Basin wide percent of average     86                     94 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    18.3    28.9    63     19.9    22.9    87 
 CASPER MTN.              7900    15.8    18.2    87     15.0    17.8    84 
 DEADMAN HILL            10220    19.1    18.6   103     18.5    20.2    92 
 DEER PARK                9700    15.5      -M      *    20.2      -M      *
 LAPRELE CREEK            8320     9.3     7.7   121     16.4    14.1   116 
 RENO HILL                8400    14.9    14.2   105     17.4    21.8    80 
 ROACH                    9700    15.8    18.1    87     20.7    24.9    83 
 SAND LAKE               10080    25.8    36.6    70     23.4    23.9    98 
 SOUTH PASS               9040    14.4    17.9    80     17.4    19.9    87 
 WINDY PEAK               7840     6.9     8.4    82     14.9    11.7   127 
                                                -----                  -----
                Basin wide percent of average     83                     92 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0     7.1    -0     14.9    17.9    83 
 DIVIDE PEAK              8800    13.4    20.2    66     19.1    26.4    72 
 OLD BATTLE              10000    28.4    37.3    76     32.8    34.6    95 
 SANDSTONE RS             8150     7.8    11.9    66     19.0    22.1    86 
 WHISKEY PARK             8950      -M    30.0      *      -M    32.8      *
                                                -----                  -----
                Basin wide percent of average     65                     85 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    11.7    14.5    81     12.1    18.1    67 
 BLIND BULL SUM           8650    24.8    25.8    96     18.5    26.4    70 
 EAST RIM DIVIDE          7930    10.3    14.9    69     11.7    16.9    69 
 ELKHART PARK G.S.        9400    10.9    14.4    76     12.6    17.8    71 
 GROS VENTRE SUMMIT       8775    10.1    14.7    69     11.7    17.7    66 
 KENDALL R.S.             7740     7.5    11.5    65     14.7    17.3    85 
 LOOMIS PARK              8240    12.7    15.8    80     17.7    21.0    84 
 NEW FORK LAKE            8340     7.1     9.7    73     10.6    16.1    66 
 SNIDER BASIN             8250     9.8    13.9    71     11.8    16.9    70 
 SPRING CREEK DIVIDE      9000    22.0    29.5    75     22.8    30.3    75 
 TRIPLE PEAK              8500    16.5    25.7    64     24.3    34.3    71 
                                                -----                  -----
                Basin wide percent of average     75                     72 


LOWER GREEN RIVER

 HAMS FORK                7840     5.1     5.7    89      9.7    14.9    65 
 HEWINTA                  9500     6.4     6.7    96     13.3    15.7    85 
 HICKERSON PARK           9150     4.8     4.3   112      9.5    11.7    81 
 HOLE-IN-ROCK             9150     2.5     3.8    66      8.7    11.7    74 
 INDIAN CREEK             9425    22.5    29.5    76     19.8    28.7    69 
 KELLEY R.S.              8180    11.5    16.0    72     16.0    20.9    77 
 STEEL CREEK PARK        10100    15.5    18.5    84     15.3    15.4    99 
                                                -----                  -----
                Basin wide percent of average     81                     78 


UPPER BEAR RIVER

 BUG LAKE                 7950    12.1    17.5    69     14.6    22.0    66 
 HAYDEN FORK              9400     9.3     8.2   113     19.3    22.2    87 
 KELLEY R.S.              8180    11.5    16.0    72     16.0    20.9    77 
 LILY LAKE                9050     6.8    10.3    66     15.4    17.4    89 
 MONTE CRISTO             8960    16.8    27.4    61     21.1    29.4    72 
 SALT RIVER SUMMIT        7600     8.5    11.9    71     15.2    18.8    81 
 TRIAL LAKE               9960    21.7    24.8    88     23.2    27.4    85 
                                                -----                  -----
                Basin wide percent of average     75                     79 

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


 -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 1961-90.

Provisional data, subject to revision.