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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: APRIL 11 , 1997 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    30.6    16.5   185     35.5    23.6   150 
 COTTONWOOD CREEK         7600    31.7    23.6   134     33.6    26.5   127 
 GRANITE CREEK            6770    29.2    18.1   161     33.4    24.9   134 
 GRASSY LAKE              7265    47.9    37.4   128     53.1    39.4   135 
 GROS VENTRE SUMMIT       8775    23.5    15.9   148     21.7    16.9   128 
 LEWIS LAKE DIVIDE        7860    51.9    36.5   142     45.8    40.0   115 
 PHILLIPS BENCH           8200    43.9    30.5   144     46.4    31.6   147 
 SALT RIVER SUMMIT        7600    22.3    14.0   159     24.5    17.9   137 
 SNAKE RIVER STATION      6920    28.3    18.7   151     37.1    27.6   134 
 SPRING CREEK DIVIDE      9000    37.4    29.1   129     33.5    29.0   116 
 THUMB DIVIDE             7980    32.3    17.3   187     33.8    22.1   153 
 TOGWOTEE PASS            9580    35.4    26.5   134     34.6    30.0   115 
 TWO OCEAN PLATEAU        9360    46.3    26.7   173       -M    32.5      *
 WILLOW CREEK             8450    40.8    31.4   130     45.1    34.0   133 
                                                -----                  -----
                Basin wide percent of average    147                    132 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    36.1    25.0   144     31.1    19.2   162 
 BLACK BEAR               7950      -M    39.7      *      -M    43.0      *
 CANYON                   7940    23.7    13.4   177     26.9    15.0   179 
 FISHER CREEK             9100    56.5    37.4   151       -M    38.8      *
 MADISON PLATEAU          7750    42.7    25.4   168     42.7    27.8   154 
 NORTHEAST ENTRANCE       7350    13.0     9.1   143     19.6    12.6   156 
 PARKER PEAK              9400    32.8    22.8   144       -M    16.5      *
 SYLVAN LAKE              8420    32.4    23.4   138     33.6    20.3   166 
 THUMB DIVIDE             7980    32.3    17.3   187     33.8    22.1   153 
 TWO OCEAN PLATEAU        9360    46.3    26.7   173       -M    32.5      *
 WHISKEY CREEK            6800    25.6    18.0   142     32.2    23.1   139 
 WHITE MILL               8700    38.7    25.6   151       -M    30.0      *
 WOLVERINE                7650    12.9    11.8   109     16.1    13.6   118 
                                                -----                  -----
                Basin wide percent of average    154                    154 


WIND RIVER

 BURROUGHS CREEK          8750    24.3    15.2   160     26.3    17.6   149 
 CHRISTINA LAKE           9980    20.7    16.3   127     24.0    17.9   134 
 COLD SPRINGS             9630    10.6     8.6   123     13.3    11.4   117 
 HOBBS PARK              10100    18.9    16.1   117     15.2    15.2   100 
 LITTLE WARM              9620    18.4    13.0   142     20.9    14.3   146 
 SOUTH PASS               9040    26.3    17.3   152     26.1    18.3   143 
 ST. LAWRENCE ALT         8620     9.7     7.2   135     12.3    11.0   112 
 TOGWOTEE PASS            9580    35.4    26.5   134     34.6    30.0   115 
 TOWNSEND CREEK           8700    11.2    10.3   109     13.6    13.5   101 
                                                -----                  -----
                Basin wide percent of average    134                    125 


BIGHORN BASIN

 BALD MTN.                9375    23.7    21.8   109     20.0    18.5   108 
 BEAR TRAP MEADOW         7900     6.7     7.0    96      9.4     9.0   104 
 BLACKWATER               9780    39.0    24.0   162     29.9    18.9   158 
 BONE SPRINGS DIV         9350    20.0    17.6   114     18.5    16.1   115 
 EVENING STAR             9200    42.4    28.6   148     41.1    23.8   173 
 GRAVE SPRINGS            8550    13.4      -M      *    12.6    10.5   120 
 KIRWIN                   9550    15.3    10.8   142     17.0    11.6   147 
 LOST CREEK               8080    18.2    14.8   123     17.3    12.9   134 
 MARQUETTE                8760    12.8     8.5   151     13.0    10.8   120 
 MIDDLE POWDER            7760    19.1    13.2   145     16.0    12.8   125 
 OWL CREEK                8975     8.5     4.7   181      7.0     6.8   103 
 POWDER RIVER PASS        9480      -M    11.4      *    14.4    12.6   114 
 SHELL CREEK              9580    19.0    15.9   119     16.2    14.0   116 
 SYLVAN LAKE              8420    32.4    23.4   138     33.6    20.3   166 
 SYLVAN ROAD              8120    21.1    11.3   187     27.7    17.0   163 
 TIMBER CREEK             7950     7.6     6.5   117      9.1     8.0   114 
 YOUNTS PEAK              8350    24.9    18.0   138     28.8    17.6   164 
                                                -----                  -----
                Basin wide percent of average    137                    137 


SHOSHONE RIVER

 BLACKWATER               9780    39.0    24.0   162     29.9    18.9   158 
 EVENING STAR             9200    42.4    28.6   148     41.1    23.8   173 
 KIRWIN                   9550    15.3    10.8   142     17.0    11.6   147 
 MARQUETTE                8760    12.8     8.5   151     13.0    10.8   120 
 SYLVAN LAKE              8420    32.4    23.4   138     33.6    20.3   166 
 SYLVAN ROAD              8120    21.1    11.3   187     27.7    17.0   163 
 YOUNTS PEAK              8350    24.9    18.0   138     28.8    17.6   164 
                                                -----                  -----
                Basin wide percent of average    151                    159 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     6.7     7.0    96      9.4     9.0   104 
 BONE SPRINGS DIV         9350    20.0    17.6   114     18.5    16.1   115 
 BURGESS JUNCTION         7880    15.7    12.6   125     15.1    12.5   121 
 CLOUD PEAK RESERVOIR     9860    19.5    16.3   120     16.8    14.6   115 
 DOME LAKE                8880    15.1    14.5   104     16.4    14.3   115 
 GRAVE SPRINGS            8550    13.4      -M      *    12.6    10.5   120 
 HANSEN SAWMILL           8760     7.2     7.5    96      9.3     8.7   107 
 LOST CREEK               8080    18.2    14.8   123     17.3    12.9   134 
 MIDDLE POWDER            7760    19.1    13.2   145     16.0    12.8   125 
 POWDER RIVER PASS        9480      -M    11.4      *    14.4    12.6   114 
 SUCKER CREEK             8880    17.3    13.0   133     17.4    14.2   123 
 TIE CREEK                6870     7.6      -M      *    14.1    11.9   118 
                                                -----                  -----
                Basin wide percent of average    119                    118 


BELLE FOURCHE

 BLIND PARK               6890    11.3    11.5    98     16.8    11.3   149 
 NORTH RAPID CREEK        6130      -M      -M      *      -M      -M      *
 WARREN PEAK              6520    20.9    11.5   182       -M     8.8      *
                                                -----                  -----
                Basin wide percent of average    140                    149*


UPPER N. PLATTE RIVER

 COLUMBINE                9400    30.8    24.5   126     33.5    25.7   130 
 DIVIDE PEAK              8800    29.3    21.7   135     26.6    24.3   109 
 ELK RIVER                8700    29.2    20.3   144     27.0    20.2   134 
 JOE WRIGHT              10120    28.4    23.6   120     31.0    26.8   116 
 NORTH FRENCH CREEK      10100    36.9    27.5   134       -M    25.0      *
 OLD BATTLE              10000    43.7    34.8   126     40.7    32.0   127 
 SOUTH BRUSH CREEK        8400    13.8    13.1   105     18.9    17.7   107 
 TOWER                   10500    57.9    48.0   121     48.2    38.5   125 
 WEBBER SPRINGS           9200    33.1    28.5   116     38.4    27.0   142 
 WILLOW CREEK PASS        9540    21.9    13.1   167     17.4    13.5   129 
                                                -----                  -----
                Basin wide percent of average    127                    125 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    37.5    28.3   133     28.3    20.9   135 
 CASPER MTN.              7900    25.3    18.3   138     22.6    15.6   145 
 CHRISTINA LAKE           9980    20.7    16.3   127     24.0    17.9   134 
 DEADMAN HILL            10220    18.2    17.5   104     20.2    18.2   111 
 LAPRELE CREEK            8320    15.3    10.2   150     15.9    12.8   124 
 RENO HILL                8400    26.2    15.2   172     22.7    20.3   112 
 ROACH                    9700    24.4    17.9   136     24.0    22.7   106 
 SAND LAKE               10080    40.7    35.0   116     31.5    21.8   144 
 SOUTH PASS               9040    26.3    17.3   152     26.1    18.3   143 
 WINDY PEAK               7840    11.1     9.2   121     12.2    10.4   117 
                                                -----                  -----
                Basin wide percent of average    133                    127 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    15.9    11.0   145     28.2    16.4   172 
 DIVIDE PEAK              8800    29.3    21.7   135     26.6    24.3   109 
 OLD BATTLE              10000    43.7    34.8   126     40.7    32.0   127 
 SANDSTONE RS             8150    19.4    15.2   128     23.0    20.1   114 
 WHISKEY PARK             8950    40.7    30.2   135     33.8    30.1   112 
                                                -----                  -----
                Basin wide percent of average    132                    124 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    19.3    15.2   127     17.4    17.2   101 
 BLIND BULL SUM           8650    44.0    30.7   143     33.8    25.4   133 
 EAST RIM DIVIDE          7930    17.3    14.7   118     17.6    16.1   109 
 ELKHART PARK G.S.        9400    18.3    14.7   124     19.0    16.9   112 
 GROS VENTRE SUMMIT       8775    23.5    15.9   148     21.7    16.9   128 
 KENDALL R.S.             7740    23.7    13.6   174     23.9    16.5   145 
 LOOMIS PARK              8240      -M    17.1      *    27.8    20.0   139 
 NEW FORK LAKE            8340    15.4    10.9   141     13.5    15.3    88 
 SNIDER BASIN             8250    23.8    15.3   156     19.8    16.1   123 
 SPRING CREEK DIVIDE      9000    37.4    29.1   129     33.5    29.0   116 
 TRIPLE PEAK              8500    36.6    26.6   138     38.4    32.8   117 
                                                -----                  -----
                Basin wide percent of average    139                    120 


LOWER GREEN RIVER

 HAMS FORK                7840    15.7     7.6   207     15.2    14.2   107 
 HEWINTA                  9500    12.3     9.7   127     15.3    14.2   108 
 HICKERSON PARK           9150    12.2     6.7   182     11.4    10.4   110 
 HOLE-IN-ROCK             9150    10.3     6.3   163     11.7    10.4   112 
 INDIAN CREEK             9425    40.1    30.0   134     32.4    27.5   118 
 KELLEY R.S.              8180    24.9    17.5   142     26.1    19.9   131 
 STEEL CREEK PARK        10100    17.4    17.5    99     17.0    13.9   122 
                                                -----                  -----
                Basin wide percent of average    139                    117 


UPPER BEAR RIVER

 BUG LAKE                 7950    34.3    20.4   168     30.2    20.6   147 
 HAYDEN FORK              9400    19.2    12.4   155     26.1    20.4   128 
 KELLEY R.S.              8180    24.9    17.5   142     26.1    19.9   131 
 LILY LAKE                9050    19.0    13.0   146     20.5    15.9   129 
 MONTE CRISTO             8960    42.2    29.5   143     34.1    27.2   125 
 SALT RIVER SUMMIT        7600    22.3    14.0   159     24.5    17.9   137 
 TRIAL LAKE               9960    35.8    25.7   139     35.4    25.4   139 
                                                -----                  -----
                Basin wide percent of average    149                    134 

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


-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.