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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 13 , 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    16.4   147     28.4    23.9   120 
 COTTONWOOD CREEK         7600    26.2    23.5   112     29.4    26.9   110 
 GRANITE CREEK            6770    22.4    18.0   124     23.7    25.2    95 
 GRASSY LAKE              7265    44.2    37.7   118     42.5    39.8   108 
 GROS VENTRE SUMMIT       8775    16.7    16.0   105     16.7    17.2    98 
 LEWIS LAKE DIVIDE        7860    41.8    36.8   114     41.3    40.3   103 
 PHILLIPS BENCH           8200    34.3    30.7   112     33.4    31.9   105 
 SALT RIVER SUMMIT        7600    16.9    14.0   121     19.4    18.2   108 
 SNAKE RIVER STATION      6920    22.4    18.7   120     26.5    27.9    96 
 SPRING CREEK DIVIDE      9000    32.3    29.4   111     29.7    29.2   102 
 THUMB DIVIDE             7980      -M    17.4      *      -M    22.4      *
 TOGWOTEE PASS            9580      -M    26.9      *    30.7    30.2   102 
 TWO OCEAN PLATEAU        9360    38.0    26.7   143     31.9    32.8    98 
 WILLOW CREEK             8450    36.3    31.7   115     39.8    34.3   117 
                                                -----                  -----
                Basin wide percent of average    119                    105 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    27.2    25.4   108     24.4    19.5   125 
 BLACK BEAR               7950    51.3    40.0   129       -M    43.4      *
 CANYON                   7940    18.9    13.5   140     20.2    15.2   133 
 FISHER CREEK             9100    41.3    37.8   110     38.0    39.3    97 
 MADISON PLATEAU          7750      -M    25.5      *    33.7    28.0   121 
 NORTHEAST ENTRANCE       7350    12.7     9.1   140     14.6    12.9   115 
 PARKER PEAK              9400    25.2    23.0   110       -M    16.9      *
 SYLVAN LAKE              8420    27.5    23.7   117     29.2    20.7   142 
 THUMB DIVIDE             7980      -M    17.4      *      -M    22.4      *
 TWO OCEAN PLATEAU        9360    38.0    26.7   143     31.9    32.8    98 
 WHISKEY CREEK            6800    22.2    18.2   122     25.5    23.4   110 
 WHITE MILL               8700    28.9    25.9   112     25.7    30.4    85 
 WOLVERINE                7650    13.0    11.9   111     13.5    13.9    98 
                                                -----                  -----
                Basin wide percent of average    120                    109 


WIND RIVER

 BURROUGHS CREEK          8750      -M    15.4      *      -M    17.9      *
 COLD SPRINGS             9630     9.6     8.7   111     13.4    11.7   114 
 DEER PARK                9700    18.4      -M      *    23.9      -M      *
 HOBBS PARK              10100    19.4    16.4   118     17.9    15.5   116 
 LITTLE WARM              9620    15.9    13.4   119     17.4    14.6   120 
 SOUTH PASS               9040    19.5    17.5   112     20.9    18.7   113 
 ST. LAWRENCE ALT         8620     7.5     7.3   105     11.5    11.2   103 
 TOGWOTEE PASS            9580      -M    26.9      *    30.7    30.2   102 
 TOWNSEND CREEK           8700    11.2    10.5   108     14.9    13.9   108 
                                                -----                  -----
                Basin wide percent of average    113                    110 


BIGHORN BASIN

 BALD MTN.                9375    21.2    22.2    96     19.4    18.9   104 
 BEAR TRAP MEADOW         7900     3.7     7.0    52     10.5     9.2   114 
 BLACKWATER               9780    32.2    24.4   132     26.4    19.2   138 
 BONE SPRINGS DIV         9350    19.7    17.9   110     18.2    16.4   111 
 EVENING STAR             9200    34.7    29.0   120     35.8    24.0   150 
 GRAVE SPRINGS            8550    10.2    10.5    98     13.2    10.9   123 
 KIRWIN                   9550    14.0    11.0   127     15.2    12.0   128 
 MARQUETTE                8760    10.0     8.7   114     10.9    11.2    97 
 MIDDLE POWDER            7760    15.6    13.5   116     18.9    13.1   145 
 OWL CREEK                8975     7.3     4.8   156      7.5     7.0   106 
 POWDER RIVER PASS        9480    12.2    11.5   107     15.7    12.9   123 
 SHELL CREEK              9580    17.9    16.2   111     16.2    14.4   114 
 SYLVAN LAKE              8420    27.5    23.7   117     29.2    20.7   142 
 SYLVAN ROAD              8120      -M    11.1      *      -M    17.2      *
 TIMBER CREEK             7950     6.0     6.6    90      8.0     8.4    96 
 YOUNTS PEAK              8350    22.4    18.2   123     20.0    17.9   113 
                                                -----                  -----
                Basin wide percent of average    113                    123 


SHOSHONE RIVER

 BLACKWATER               9780    32.2    24.4   132     26.4    19.2   138 
 EVENING STAR             9200    34.7    29.0   120     35.8    24.0   150 
 KIRWIN                   9550    14.0    11.0   127     15.2    12.0   128 
 MARQUETTE                8760    10.0     8.7   114     10.9    11.2    97 
 SYLVAN LAKE              8420    27.5    23.7   117     29.2    20.7   142 
 SYLVAN ROAD              8120      -M    11.1      *      -M    17.2      *
 YOUNTS PEAK              8350    22.4    18.2   123     20.0    17.9   113 
                                                -----                  -----
                Basin wide percent of average    123                    132 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     3.7     7.0    52     10.5     9.2   114 
 BIG GOOSE                7990     8.5      -M      *    12.4      -M      *
 BONE SPRINGS DIV         9350    19.7    17.9   110     18.2    16.4   111 
 BURGESS JUNCTION         7880    11.0    12.9    86     12.5    12.7    99 
 CLOUD PEAK RESERVOIR     9860    18.2    16.7   110     16.5    15.0   111 
 DOME LAKE                8880      -M    14.7      *    12.6    14.5    87 
 GRAVE SPRINGS            8550    10.2    10.5    98     13.2    10.9   123 
 HANSEN SAWMILL           8760     5.0     7.6    65      9.4     9.0   105 
 MIDDLE POWDER            7760    15.6    13.5   116     18.9    13.1   145 
 POWDER RIVER PASS        9480    12.2    11.5   107     15.7    12.9   123 
 SUCKER CREEK             8880    12.2    13.2    93     15.0    14.5   104 
 TIE CREEK                6870      -M      -M      *      -M    12.2      *
                                                -----                  -----
                Basin wide percent of average     98                    112 


BELLE FOURCHE

 BLIND PARK               6890     7.0    11.6    61     16.9    11.6   146 
 NORTH RAPID CREEK        6130     6.8      -M      *    14.5      -M      *
 WARREN PEAK              6520    12.4    11.6   107     11.6     9.0   129 
                                                -----                  -----
                Basin wide percent of average     84                    139 


UPPER N. PLATTE RIVER

 COLUMBINE                9400    19.0    24.5    78     23.2    26.0    90 
 DIVIDE PEAK              8800    21.5    21.9    99     26.7    24.7   108 
 ELK RIVER                8700    17.7    20.4    87     23.9    20.4   118 
 JOE WRIGHT              10120    20.9    24.0    87     27.5    27.2   102 
 NORTH FRENCH CREEK      10100    33.8    27.9   121     31.9    25.4   126 
 OLD BATTLE              10000    32.0    35.3    91     38.8    32.5   120 
 SOUTH BRUSH CREEK        8400    11.5    13.1    88     20.7    18.2   114 
 TOWER                   10500    47.4    48.5    98     40.8    39.2   105 
 WEBBER SPRINGS           9200    20.0    28.7    70     28.2    27.4   103 
 WILLOW CREEK PASS        9540    12.7    13.4    96     12.9    13.9    93 
                                                -----                  -----
                Basin wide percent of average     92                    108 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    16.0    28.7    56     23.5    21.2   111 
 CASPER MTN.              7900    13.2    18.7    71     18.4    16.0   115 
 DEADMAN HILL            10220    16.7    17.7    94     17.9    18.5    97 
 DEER PARK                9700    18.4      -M      *    23.9      -M      *
 LAPRELE CREEK            8320      -M    10.1      *    16.2    13.0   125 
 RENO HILL                8400    15.7    15.5   102     20.7    20.5   101 
 ROACH                    9700    15.9    18.2    88     20.7    23.0    90 
 SAND LAKE               10080    37.9    35.4   108     30.5    22.2   138 
 SOUTH PASS               9040    19.5    17.5   112     20.9    18.7   113 
 WINDY PEAK               7840     7.6     9.4    82     14.2    10.6   134 
                                                -----                  -----
                Basin wide percent of average     89                    112 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    12.5    11.0   113     18.9    16.7   114 
 DIVIDE PEAK              8800    21.5    21.9    99     26.7    24.7   108 
 OLD BATTLE              10000    32.0    35.3    91     38.8    32.5   120 
 SANDSTONE RS             8150    14.0    15.4    91     22.4    20.4   110 
 WHISKEY PARK             8950    29.4    30.5    97     31.9    30.7   105 
                                                -----                  -----
                Basin wide percent of average     96                    111 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    16.7    15.5   109     16.2    17.4    93 
 BLIND BULL SUM           8650    29.7    30.9    96     23.4    25.7    92 
 EAST RIM DIVIDE          7930    14.5    15.0    98     15.0    16.4    92 
 ELKHART PARK G.S.        9400    14.9    15.0   100     15.7    17.2    92 
 GROS VENTRE SUMMIT       8775    16.7    16.0   105     16.7    17.2    98 
 KENDALL R.S.             7740    16.0    13.5   119     17.2    16.7   104 
 LOOMIS PARK              8240      -M    17.0      *    21.2    20.2   105 
 NEW FORK LAKE            8340    13.6    10.9   126     12.7    15.5    82 
 SNIDER BASIN             8250    18.7    15.5   121     18.7    16.2   116 
 SPRING CREEK DIVIDE      9000    32.3    29.4   111     29.7    29.2   102 
 TRIPLE PEAK              8500    31.7    26.9   118     31.9    33.2    97 
                                                -----                  -----
                Basin wide percent of average    109                     98 


LOWER GREEN RIVER

 HAMS FORK                7840    14.5     6.8   217     12.5    14.5    87 
 HEWINTA                  9500    13.1     9.5   140     15.4    14.5   107 
 HICKERSON PARK           9150     6.8     6.8   102     10.5    10.7    98 
 HOLE-IN-ROCK             9150     6.8     6.3   108     11.0    10.7   103 
 INDIAN CREEK             9425    32.3    30.2   107     26.9    27.7    98 
 KELLEY R.S.              8180    17.9    17.7   102     20.0    20.2   100 
 STEEL CREEK PARK        10100    16.0    17.9    90     18.0    14.2   127 
                                                -----                  -----
                Basin wide percent of average    114                    102 


UPPER BEAR RIVER

 BUG LAKE                 7950    24.0    20.2   119     21.9    20.9   105 
 HAYDEN FORK              9400    15.9    11.7   136     22.0    20.7   107 
 KELLEY R.S.              8180    17.9    17.7   102     20.0    20.2   100 
 LILY LAKE                9050    12.9    13.0    99     19.0    16.2   119 
 MONTE CRISTO             8960    27.9    29.4    95     28.2    27.7   102 
 SALT RIVER SUMMIT        7600    16.9    14.0   121     19.4    18.2   108 
 TRIAL LAKE               9960    22.2    25.9    86     23.2    25.9    90 
                                                -----                  -----
                Basin wide percent of average    105                    103 

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


-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.