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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 SATURDAY: APRIL 10 , 1999 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    23.9    16.7   144     27.9    23.7   119 
 COTTONWOOD CREEK         7600    26.4    23.9   111     29.4    26.5   111 
 GRANITE CREEK            6770      -M    18.2      *      -M    24.9      *
 GRASSY LAKE              7265    43.9    37.3   118     42.3    39.3   108 
 GROS VENTRE SUMMIT       8775    16.7    16.0   105     16.7    16.9    99 
 LEWIS LAKE DIVIDE        7860    41.8    36.5   115     41.2    39.9   104 
 PHILLIPS BENCH           8200    34.3    30.4   113     33.3    31.7   106 
 SALT RIVER SUMMIT        7600    16.9    14.1   120     19.2    17.9   108 
 SNAKE RIVER STATION      6920    22.2    18.7   119     26.4    27.7    96 
 SPRING CREEK DIVIDE      9000    32.2    29.2   111     29.4    29.0   102 
 THUMB DIVIDE             7980      -M    17.4      *      -M    22.0      *
 TOGWOTEE PASS            9580      -M    26.4      *    29.7    29.9    99 
 TWO OCEAN PLATEAU        9360    37.8    26.7   142     31.9    32.4    99 
 WILLOW CREEK             8450    34.9    31.4   112     39.0    33.9   116 
                                                -----                  -----
                Basin wide percent of average    118                    105 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    27.0    24.9   109     24.4    19.2   127 
 BLACK BEAR               7950    51.5    39.7   131       -M    42.9      *
 CANYON                   7940    18.7    13.5   139     20.2    15.0   135 
 FISHER CREEK             9100    41.2    37.3   111     37.8    38.8    98 
 MADISON PLATEAU          7750      -M    25.4      *      -M    27.7      *
 NORTHEAST ENTRANCE       7350    12.7     9.1   140     14.7    12.6   117 
 PARKER PEAK              9400    25.2    22.9   111       -M    16.5      *
 SYLVAN LAKE              8420    27.5    23.4   118     29.2    20.4   144 
 THUMB DIVIDE             7980      -M    17.4      *      -M    22.0      *
 TWO OCEAN PLATEAU        9360    37.8    26.7   142     31.9    32.4    99 
 WHISKEY CREEK            6800    22.0    18.0   123     25.4    23.2   110 
 WHITE MILL               8700    28.9    25.7   113     25.7    29.9    86 
 WOLVERINE                7650    12.9    11.9   109     13.2    13.6    98 
                                                -----                  -----
                Basin wide percent of average    121                    109 


WIND RIVER

 BURROUGHS CREEK          8750    17.9    15.2   118     19.2    17.7   109 
 COLD SPRINGS             9630    10.0     8.6   116     13.2    11.5   116 
 DEER PARK                9700    18.4      -M      *    23.7      -M      *
 HOBBS PARK              10100    19.2    16.0   120     17.9    15.2   118 
 LITTLE WARM              9620    15.6    13.0   121     17.4    14.4   122 
 SOUTH PASS               9040    19.5    17.2   114     20.7    18.2   114 
 ST. LAWRENCE ALT         8620     7.6     7.3   105     11.5    11.0   106 
 TOGWOTEE PASS            9580      -M    26.4      *    29.7    29.9    99 
 TOWNSEND CREEK           8700    11.2    10.4   109     14.7    13.5   109 
                                                -----                  -----
                Basin wide percent of average    116                    110 


BIGHORN BASIN

 BALD MTN.                9375    20.9    21.7    96     19.0    18.5   103 
 BEAR TRAP MEADOW         7900     4.3     7.1    60     10.2     9.0   114 
 BLACKWATER               9780    31.9    23.9   134     26.4    18.9   140 
 BONE SPRINGS DIV         9350    18.5    17.7   106     17.4    16.2   109 
 EVENING STAR             9200    34.3    28.5   121     35.8    23.7   151 
 GRAVE SPRINGS            8550     9.5    10.4    92     12.5    10.5   120 
 KIRWIN                   9550    13.6    10.9   126     15.2    11.6   132 
 MARQUETTE                8760    10.0     8.5   117     10.6    10.9    99 
 MIDDLE POWDER            7760    13.1    13.1   100     17.4    12.9   136 
 OWL CREEK                8975     7.0     4.8   147      7.3     6.8   108 
 POWDER RIVER PASS        9480    12.6    11.5   111     15.7    12.5   126 
 SHELL CREEK              9580    17.4    15.9   110     15.9    14.0   113 
 SYLVAN LAKE              8420    27.5    23.4   118     29.2    20.4   144 
 SYLVAN ROAD              8120    17.4    11.5   152     20.2    17.0   119 
 TIMBER CREEK             7950     6.0     6.5    91      8.0     8.0    99 
 YOUNTS PEAK              8350    22.2    18.0   124     19.7    17.5   113 
                                                -----                  -----
                Basin wide percent of average    115                    123 


SHOSHONE RIVER

 BLACKWATER               9780    31.9    23.9   134     26.4    18.9   140 
 EVENING STAR             9200    34.3    28.5   121     35.8    23.7   151 
 KIRWIN                   9550    13.6    10.9   126     15.2    11.6   132 
 MARQUETTE                8760    10.0     8.5   117     10.6    10.9    99 
 SYLVAN LAKE              8420    27.5    23.4   118     29.2    20.4   144 
 SYLVAN ROAD              8120    17.4    11.5   152     20.2    17.0   119 
 YOUNTS PEAK              8350    22.2    18.0   124     19.7    17.5   113 
                                                -----                  -----
                Basin wide percent of average    126                    131 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     4.3     7.1    60     10.2     9.0   114 
 BIG GOOSE                7990     8.1      -M      *    11.6      -M      *
 BONE SPRINGS DIV         9350    18.5    17.7   106     17.4    16.2   109 
 BURGESS JUNCTION         7880    10.2    12.6    81     12.0    12.5    96 
 CLOUD PEAK RESERVOIR     9860    16.9    16.2   105     15.0    14.5   103 
 DOME LAKE                8880      -M    14.5      *    12.4    14.2    87 
 GRAVE SPRINGS            8550     9.5    10.4    92     12.5    10.5   120 
 HANSEN SAWMILL           8760     4.8     7.5    65      9.1     8.7   105 
 MIDDLE POWDER            7760    13.1    13.1   100     17.4    12.9   136 
 POWDER RIVER PASS        9480    12.6    11.5   111     15.7    12.5   126 
 SUCKER CREEK             8880    11.5    13.0    88     14.1    14.2   100 
 TIE CREEK                6870      -M      -M      *      -M    12.0      *
                                                -----                  -----
                Basin wide percent of average     93                    109 


BELLE FOURCHE

 BLIND PARK               6890     6.5    11.5    56     16.5    11.2   148 
 NORTH RAPID CREEK        6130     6.3      -M      *    14.0      -M      *
 WARREN PEAK              6520    10.9    11.5    94       -M     8.7      *
                                                -----                  -----
                Basin wide percent of average     75                    148*


UPPER N. PLATTE RIVER

 COLUMBINE                9400    19.0    24.7    78     22.7    25.7    89 
 DIVIDE PEAK              8800    20.9    21.7    97     25.7    24.2   107 
 ELK RIVER                8700    17.2    20.4    85     23.4    20.2   117 
 JOE WRIGHT              10120    21.2    23.5    91     27.2    26.7   102 
 NORTH FRENCH CREEK      10100    32.3    27.4   118     30.5    24.9   123 
 OLD BATTLE              10000    31.5    34.7    92     37.5    31.9   118 
 SOUTH BRUSH CREEK        8400    11.7    13.2    89     20.2    17.7   115 
 TOWER                   10500    46.8    47.8    98     39.9    38.4   104 
 WEBBER SPRINGS           9200    20.0    28.5    71     27.7    26.9   103 
 WILLOW CREEK PASS        9540    12.7    13.0    98     12.5    13.5    92 
                                                -----                  -----
                Basin wide percent of average     92                    107 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    16.2    28.2    58     23.2    20.9   112 
 CASPER MTN.              7900    12.0    18.2    66     17.5    15.5   113 
 DEADMAN HILL            10220    16.5    17.4    95     17.4    18.2    97 
 DEER PARK                9700    18.4      -M      *    23.7      -M      *
 LAPRELE CREEK            8320      -M    10.4      *    15.1    12.7   119 
 RENO HILL                8400    14.7    15.2    97     19.2    20.2    96 
 ROACH                    9700    15.5    17.9    87     20.2    22.7    89 
 SAND LAKE               10080    37.0    34.8   107     29.7    21.7   137 
 SOUTH PASS               9040    19.5    17.2   114     20.7    18.2   114 
 WINDY PEAK               7840     7.0     9.2    77     13.5    10.5   130 
                                                -----                  -----
                Basin wide percent of average     88                    111 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    12.1    11.1   110     18.4    16.4   113 
 DIVIDE PEAK              8800    20.9    21.7    97     25.7    24.2   107 
 OLD BATTLE              10000    31.5    34.7    92     37.5    31.9   118 
 SANDSTONE RS             8150    13.6    15.2    90     21.9    20.0   110 
 WHISKEY PARK             8950    28.5    30.2    95     31.2    30.0   105 
                                                -----                  -----
                Basin wide percent of average     95                    110 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    16.7    15.2   110     16.2    17.2    94 
 BLIND BULL SUM           8650    29.2    30.7    96     23.2    25.4    92 
 EAST RIM DIVIDE          7930    14.5    14.7    99     14.9    16.2    92 
 ELKHART PARK G.S.        9400    14.9    14.7   101     15.7    16.9    93 
 GROS VENTRE SUMMIT       8775    16.7    16.0   105     16.7    16.9    99 
 KENDALL R.S.             7740    16.0    13.7   117     17.2    16.5   104 
 LOOMIS PARK              8240      -M    17.2      *    21.2    20.0   106 
 NEW FORK LAKE            8340    13.4    11.0   121     12.5    15.4    82 
 SNIDER BASIN             8250    18.5    15.4   121     18.7    16.2   117 
 SPRING CREEK DIVIDE      9000    32.2    29.2   111     29.4    29.0   102 
 TRIPLE PEAK              8500    31.4    26.7   119     31.7    32.8    97 
                                                -----                  -----
                Basin wide percent of average    109                     98 


LOWER GREEN RIVER

 HAMS FORK                7840    14.7     8.1   182     12.5    14.2    88 
 HEWINTA                  9500    13.5    10.0   136     15.2    14.1   108 
 HICKERSON PARK           9150     6.3     6.8    93     10.5    10.5   100 
 HOLE-IN-ROCK             9150     7.0     6.5   108     10.9    10.5   104 
 INDIAN CREEK             9425    31.9    30.0   107     26.7    27.4    98 
 KELLEY R.S.              8180    18.0    17.5   103     19.9    19.9   100 
 STEEL CREEK PARK        10100    16.0    17.5    91     17.9    13.9   129 
                                                -----                  -----
                Basin wide percent of average    112                    103 


UPPER BEAR RIVER

 BUG LAKE                 7950    24.4    20.5   119     21.7    20.7   105 
 HAYDEN FORK              9400    16.0    13.0   124     21.4    20.4   105 
 KELLEY R.S.              8180    18.0    17.5   103     19.9    19.9   100 
 LILY LAKE                9050    12.6    13.1    97     19.2    15.9   121 
 MONTE CRISTO             8960    28.5    29.7    97     27.9    27.2   103 
 SALT RIVER SUMMIT        7600    16.9    14.1   120     19.2    17.9   108 
 TRIAL LAKE               9960    22.4    25.7    87     23.4    25.4    93 
                                                -----                  -----
                Basin wide percent of average    104                    104 

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


-M = Missing data
 * = Data may not provide a valid measure of conditions.
 
     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.