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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 19 , 2000 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030      .0     3.7    -0     23.8    26.8    89 
 COTTONWOOD CREEK         7600     6.2    10.7    58       -M    29.9      *
 GRANITE CREEK            6770      -M     6.0      *    21.1    28.5    74 
 GRASSY LAKE              7265    13.4    23.6    57     36.7    44.5    82 
 GROS VENTRE SUMMIT       8775     2.2     7.7    29     13.4    19.3    69 
 LEWIS LAKE DIVIDE        7860      -M    27.3      *    34.0    45.2    75 
 PHILLIPS BENCH           8200    14.8    23.5    63     25.5    35.6    72 
 SALT RIVER SUMMIT        7600      .0      .0   100*    17.0    20.5    83 
 SNAKE RIVER STATION      6920      -M     8.8      *      -M    31.2      *
 SPRING CREEK DIVIDE      9000    17.2    24.4    70     25.4    32.5    78 
 THUMB DIVIDE             7980      .0     8.6    -0     19.8    25.1    79 
 TOGWOTEE PASS            9580    21.4    25.4    84     28.7    33.9    85 
 TWO OCEAN PLATEAU        9360    22.9    25.4    90     28.6    36.8    78 
 WILLOW CREEK             8450    12.3    25.8    48     34.8    38.4    91 
                                                -----                  -----
                Basin wide percent of average     62                     80 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    23.1    23.6    98     24.8    23.4   106 
 BLACK BEAR               7950    34.0    34.8    98     42.0    48.9    86 
 CANYON                   7940     4.3     5.3    81     18.7    17.8   105 
 FISHER CREEK             9100    31.6    36.1    88     38.0    45.0    84 
 MADISON PLATEAU          7750    12.9    16.2    80     28.3    31.9    89 
 NORTHEAST ENTRANCE       7350      .0     2.0    -0     15.9    15.4   103 
 PARKER PEAK              9400    16.5    21.7    76       -M    20.1      *
 SYLVAN LAKE              8420    14.1    19.1    74     27.7    24.6   113 
 THUMB DIVIDE             7980      .0     8.6    -0     19.8    25.1    79 
 TWO OCEAN PLATEAU        9360    22.9    25.4    90     28.6    36.8    78 
 WHISKEY CREEK            6800     2.0     7.5    27       -M    26.5      *
 WHITE MILL               8700    25.6    23.6   108     26.8    34.9    77 
 WOLVERINE                7650      .0     2.3    -0     13.8    16.9    82 
                                                -----                  -----
                Basin wide percent of average     83                     89 


WIND RIVER

 BURROUGHS CREEK          8750     6.4     5.7   112     17.6    21.2    83 
 COLD SPRINGS             9630     1.1     2.2    50     12.8    14.8    86 
 DEER PARK                9700    10.6      -M      *    24.5      -M      *
 HOBBS PARK              10100     8.8    15.1    58     16.4    19.4    85 
 LITTLE WARM              9620      .5     4.3    12     16.3    18.0    91 
 SOUTH PASS               9040     5.6    15.0    37     20.8    22.6    92 
 ST. LAWRENCE ALT         8620      .8     1.9    42     10.0    13.8    72 
 TOGWOTEE PASS            9580    21.4    25.4    84     28.7    33.9    85 
 TOWNSEND CREEK           8700     1.7     5.1    33     14.8    17.3    86 
                                                -----                  -----
                Basin wide percent of average     62                     85 


BIGHORN BASIN

 BALD MTN.                9375    22.4    23.0    97     24.5    23.4   105 
 BEAR TRAP MEADOW         7900      .0     1.1     0     10.8    12.5    86 
 BLACKWATER               9780    20.9    23.4    89     22.9    22.6   101 
 BONE SPRINGS DIV         9350    13.8    14.6    95     21.9    20.5   107 
 EVENING STAR             9200    22.0    29.2    75     31.1    28.2   110 
 GRAVE SPRINGS            8550      .4     8.9     4     12.7    14.6    87 
 KIRWIN                   9550     7.5     8.9    84     16.0    15.0   107 
 MARQUETTE                8760     4.7     6.8    69     13.4    15.7    85 
 MIDDLE POWDER            7760     2.3    11.3    20     14.2    16.8    85 
 OWL CREEK                8975      .0      .8     0      7.4     9.6    77 
 POWDER RIVER PASS        9480     3.7     5.0    74     17.4    16.7   104 
 SHELL CREEK              9580    14.5    15.6    93     18.6    18.2   102 
 SYLVAN LAKE              8420    14.1    19.1    74     27.7    24.6   113 
 SYLVAN ROAD              8120      .0     3.3     0     19.6    20.5    96 
 TIMBER CREEK             7950      .2     2.0    10      9.4    12.2    77 
 YOUNTS PEAK              8350    12.2    14.2    86     18.0    21.0    86 
                                                -----                  -----
                Basin wide percent of average     74                     98 


SHOSHONE RIVER

 BLACKWATER               9780    20.9    23.4    89     22.9    22.6   101 
 EVENING STAR             9200    22.0    29.2    75     31.1    28.2   110 
 KIRWIN                   9550     7.5     8.9    84     16.0    15.0   107 
 MARQUETTE                8760     4.7     6.8    69     13.4    15.7    85 
 SYLVAN LAKE              8420    14.1    19.1    74     27.7    24.6   113 
 SYLVAN ROAD              8120      .0     3.3     0     19.6    20.5    96 
 YOUNTS PEAK              8350    12.2    14.2    86     18.0    21.0    86 
                                                -----                  -----
                Basin wide percent of average     78                    101 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900      .0     1.1     0     10.8    12.5    86 
 BIG GOOSE                7990     1.4      -M      *    16.1      -M      *
 BONE SPRINGS DIV         9350    13.8    14.6    95     21.9    20.5   107 
 BURGESS JUNCTION         7880     9.4     9.0   104     18.6    16.3   114 
 CLOUD PEAK RESERVOIR     9860    16.0    14.3   112     21.4    19.5   110 
 DOME LAKE                8880     5.8     8.8    66     21.3    18.6   115 
 GRAVE SPRINGS            8550      .4     8.9     4     12.7    14.6    87 
 HANSEN SAWMILL           8760     1.3     3.2    41     13.2    11.9   111 
 MIDDLE POWDER            7760     2.3    11.3    20     14.2    16.8    85 
 POWDER RIVER PASS        9480     3.7     5.0    74     17.4    16.7   104 
 SUCKER CREEK             8880     8.5     9.0    94     22.5    18.8   120 
 TIE CREEK                6870      .0      -M      *    18.0    15.7   115 
                                                -----                  -----
                Basin wide percent of average     72                    106 


BELLE FOURCHE

 BLIND PARK               6890      .0     3.5     0     14.3    16.4    87 
 NORTH RAPID CREEK        6130      .0      -M      *    13.9      -M      *
 WARREN PEAK              6520      .0     3.5    -0     14.5    12.0   121 
                                                -----                  -----
                Basin wide percent of average      0                    101 


UPPER N. PLATTE RIVER

 COLUMBINE                9400      .2    11.4     2     30.9    29.7   104 
 DIVIDE PEAK              8800     1.5    10.2    15     22.3    29.3    76 
 ELK RIVER                8700      .2     6.5     3     21.6    23.5    92 
 JOE WRIGHT              10120    19.1    22.1    86     33.6    33.0   102 
 NORTH FRENCH CREEK      10100    22.0    25.2    87     31.9    30.5   105 
 OLD BATTLE              10000    25.3    33.9    75     36.6    38.0    96 
 SOUTH BRUSH CREEK        8400     1.0     4.7    21     17.9    22.2    81 
 TOWER                   10500    40.2    49.3    82     48.7    46.8   104 
 WEBBER SPRINGS           9200     6.7    18.1    37     26.5    32.4    82 
 WILLOW CREEK PASS        9540    10.8     8.7   124     19.6    17.1   115 
                                                -----                  -----
                Basin wide percent of average     67                     96 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240     9.9    22.1    45     22.9    25.7    89 
 CASPER MTN.              7900     4.4     9.4    47     18.1    21.2    85 
 DEADMAN HILL            10220    17.6    16.6   106     22.5    23.1    97 
 DEER PARK                9700    10.6      -M      *    24.5      -M      *
 LAPRELE CREEK            8320     1.3     2.8    46     19.4    16.7   116 
 RENO HILL                8400      -M     7.3      *    21.7    23.5    92 
 ROACH                    9700     7.4    14.0    53     23.7    28.4    83 
 SAND LAKE               10080    24.1    32.9    73     29.1    26.9   108 
 SOUTH PASS               9040     5.6    15.0    37     20.8    22.6    92 
 WINDY PEAK               7840      -M     2.7      *    20.0    14.2   141 
                                                -----                  -----
                Basin wide percent of average     62                     98 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100*    16.9    19.9    85 
 DIVIDE PEAK              8800     1.5    10.2    15     22.3    29.3    76 
 OLD BATTLE              10000    25.3    33.9    75     36.6    38.0    96 
 SANDSTONE RS             8150      .5     1.8    28     21.5    24.7    87 
 WHISKEY PARK             8950      -M    22.2      *    32.2    36.5    88 
                                                -----                  -----
                Basin wide percent of average     59                     87 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100      .7     7.5     9     14.0    19.7    71 
 BLIND BULL SUM           8650    19.7    21.0    94     20.2    28.4    71 
 EAST RIM DIVIDE          7930     2.4    11.4    21     13.4    18.4    73 
 ELKHART PARK G.S.        9400     3.6     8.5    42     14.7    19.4    76 
 GROS VENTRE SUMMIT       8775     2.2     7.7    29     13.4    19.3    69 
 KENDALL R.S.             7740      .0      .0   100*    16.2    18.8    86 
 LOOMIS PARK              8240      .3     8.6     3     19.8    22.8    87 
 NEW FORK LAKE            8340      .0     4.7    -0     12.0    17.5    69 
 SNIDER BASIN             8250      .1     6.5     2     13.6    18.4    74 
 SPRING CREEK DIVIDE      9000    17.2    24.4    70     25.4    32.5    78 
 TRIPLE PEAK              8500     4.4    19.7    22     27.4    37.2    74 
                                                -----                  -----
                Basin wide percent of average     42                     75 


LOWER GREEN RIVER

 HAMS FORK                7840      .7      .0      *    11.5    16.2    71 
 HEWINTA                  9500      .0      .0   100*    14.6    17.9    82 
 HICKERSON PARK           9150      .1      .5    20*    10.4    14.0    74 
 HOLE-IN-ROCK             9150      .0      .4    -0*     9.4    14.0    67 
 INDIAN CREEK             9425    17.1    23.1    74     22.7    31.0    73 
 KELLEY R.S.              8180      .2     7.6     3     18.4    22.8    81 
 STEEL CREEK PARK        10100     9.4    15.5    61     16.7    18.2    92 
                                                -----                  -----
                Basin wide percent of average     57*                    77 


UPPER BEAR RIVER

 BUG LAKE                 7950      -M     8.3      *    17.0    23.9    71 
 HAYDEN FORK              9400      .0      .5    -0*    20.6    24.9    83 
 KELLEY R.S.              8180      .2     7.6     3     18.4    22.8    81 
 LILY LAKE                9050      .2     4.6     4     16.7    19.8    84 
 MONTE CRISTO             8960     5.0    19.1    26     23.5    32.3    73 
 SALT RIVER SUMMIT        7600      .0      .0   100*    17.0    20.5    83 
 TRIAL LAKE               9960    12.7    18.9    67     24.4    30.3    81 
                                                -----                  -----
                Basin wide percent of average     36                     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.