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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 WEDNESDAY: APRIL 9 , 1997 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    30.4    16.8   181     35.4    23.4   151 
 COTTONWOOD CREEK         7600    31.5    23.8   132     33.3    26.4   126 
 GRANITE CREEK            6770    29.4    18.2   162     33.3    24.7   135 
 GRASSY LAKE              7265    48.2    37.2   130     53.1    39.1   136 
 GROS VENTRE SUMMIT       8775    23.5    15.9   148     21.8    16.8   130 
 LEWIS LAKE DIVIDE        7860    52.6    36.3   145     45.8    39.7   115 
 PHILLIPS BENCH           8200    43.8    30.3   145     46.3    31.4   147 
 SALT RIVER SUMMIT        7600    22.0    14.1   156     24.0    17.8   135 
 SNAKE RIVER STATION      6920    28.5    18.7   152     37.1    27.4   135 
 SPRING CREEK DIVIDE      9000    36.9    28.9   128     33.3    28.8   116 
 THUMB DIVIDE             7980    32.4    17.3   187     33.8    21.9   154 
 TOGWOTEE PASS            9580    35.3    26.2   135     34.5    29.8   116 
 TWO OCEAN PLATEAU        9360    46.5    26.7   174       -M    32.3      *
 WILLOW CREEK             8450    40.3    31.2   129     44.5    33.8   132 
                                                -----                  -----
                Basin wide percent of average    147                    132 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    36.5    24.8   147     31.2    19.0   164 
 BLACK BEAR               7950      -M    39.5      *      -M    42.7      *
 CANYON                   7940    23.3    13.3   175     26.8    14.9   180 
 FISHER CREEK             9100    56.5    37.1   152       -M    38.5      *
 MADISON PLATEAU          7750    42.6    25.3   168     42.5    27.6   154 
 NORTHEAST ENTRANCE       7350    12.7     9.1   140     19.6    12.4   158 
 PARKER PEAK              9400    32.8    22.6   145       -M    16.4      *
 SYLVAN LAKE              8420    32.7    23.2   141     33.6    20.1   167 
 THUMB DIVIDE             7980    32.4    17.3   187     33.8    21.9   154 
 TWO OCEAN PLATEAU        9360    46.5    26.7   174       -M    32.3      *
 WHISKEY CREEK            6800    25.6    17.9   143     32.0    22.9   140 
 WHITE MILL               8700    38.8    25.5   152       -M    29.7      *
 WOLVERINE                7650    13.7    11.8   116     16.1    13.4   120 
                                                -----                  -----
                Basin wide percent of average    155                    155 


WIND RIVER

 BURROUGHS CREEK          8750    24.3    15.2   160     26.3    17.4   151 
 CHRISTINA LAKE           9980    20.9    16.1   130     24.0    17.7   136 
 COLD SPRINGS             9630    10.8     8.6   126     13.1    11.3   116 
 HOBBS PARK              10100    18.9    15.9   119     15.1    15.0   101 
 LITTLE WARM              9620    18.7    12.7   147     21.1    14.1   150 
 SOUTH PASS               9040    26.0    17.1   152     25.9    18.0   144 
 ST. LAWRENCE ALT         8620     9.6     7.3   132     12.1    10.8   112 
 TOGWOTEE PASS            9580    35.3    26.2   135     34.5    29.8   116 
 TOWNSEND CREEK           8700    11.1    10.2   109     13.4    13.3   101 
                                                -----                  -----
                Basin wide percent of average    136                    126 


BIGHORN BASIN

 BALD MTN.                9375    23.7    21.5   110     20.0    18.3   109 
 BEAR TRAP MEADOW         7900     7.3     7.0   104      9.5     8.8   108 
 BLACKWATER               9780    39.4    23.7   166     29.8    18.8   159 
 BONE SPRINGS DIV         9350    20.4    17.4   117     18.4    15.9   116 
 EVENING STAR             9200    42.7    28.3   151     41.0    23.6   174 
 GRAVE SPRINGS            8550    13.4      -M      *    12.4    10.3   120 
 KIRWIN                   9550    15.6    10.6   147     17.0    11.5   148 
 LOST CREEK               8080    17.9    14.6   123     17.2    12.7   135 
 MARQUETTE                8760    12.9     8.4   154     12.9    10.6   122 
 MIDDLE POWDER            7760    19.1    13.0   147     16.0    12.6   127 
 OWL CREEK                8975     9.1     4.7   194      7.0     6.7   104 
 POWDER RIVER PASS        9480      -M    11.3      *    14.3    12.4   115 
 SHELL CREEK              9580    19.1    15.7   122     16.0    13.8   116 
 SYLVAN LAKE              8420    32.7    23.2   141     33.6    20.1   167 
 SYLVAN ROAD              8120    21.2    11.5   184     27.5    16.8   164 
 TIMBER CREEK             7950     7.5     6.5   115      8.9     7.8   114 
 YOUNTS PEAK              8350    24.9    17.9   139     28.4    17.4   163 
                                                -----                  -----
                Basin wide percent of average    140                    139 


SHOSHONE RIVER

 BLACKWATER               9780    39.4    23.7   166     29.8    18.8   159 
 EVENING STAR             9200    42.7    28.3   151     41.0    23.6   174 
 KIRWIN                   9550    15.6    10.6   147     17.0    11.5   148 
 MARQUETTE                8760    12.9     8.4   154     12.9    10.6   122 
 SYLVAN LAKE              8420    32.7    23.2   141     33.6    20.1   167 
 SYLVAN ROAD              8120    21.2    11.5   184     27.5    16.8   164 
 YOUNTS PEAK              8350    24.9    17.9   139     28.4    17.4   163 
                                                -----                  -----
                Basin wide percent of average    153                    160 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     7.3     7.0   104      9.5     8.8   108 
 BONE SPRINGS DIV         9350    20.4    17.4   117     18.4    15.9   116 
 BURGESS JUNCTION         7880    16.0    12.4   129     15.3    12.3   124 
 CLOUD PEAK RESERVOIR     9860    19.5    16.0   122     16.7    14.3   117 
 DOME LAKE                8880    15.1    14.4   105     16.2    14.1   115 
 GRAVE SPRINGS            8550    13.4      -M      *    12.4    10.3   120 
 HANSEN SAWMILL           8760     7.7     7.4   104      9.1     8.5   107 
 LOST CREEK               8080    17.9    14.6   123     17.2    12.7   135 
 MIDDLE POWDER            7760    19.1    13.0   147     16.0    12.6   127 
 POWDER RIVER PASS        9480      -M    11.3      *    14.3    12.4   115 
 SUCKER CREEK             8880    17.2    12.8   134     17.7    14.0   126 
 TIE CREEK                6870     8.0      -M      *    14.1    11.7   121 
                                                -----                  -----
                Basin wide percent of average    122                    120 


BELLE FOURCHE

 BLIND PARK               6890    11.0    11.4    96     16.6    11.0   151 
 NORTH RAPID CREEK        6130    11.5      -M      *    14.7      -M      *
 WARREN PEAK              6520    20.8    11.4   182       -M     8.6      *
                                                -----                  -----
                Basin wide percent of average    139                    151*


UPPER N. PLATTE RIVER

 COLUMBINE                9400    29.4    24.6   120     32.4    25.5   127 
 DIVIDE PEAK              8800    28.2    21.6   131     26.1    24.0   109 
 ELK RIVER                8700    27.8    20.2   138     25.9    20.0   130 
 JOE WRIGHT              10120    26.9    23.3   115     30.6    26.4   116 
 NORTH FRENCH CREEK      10100    36.8    27.1   136     27.6    24.7   112 
 OLD BATTLE              10000    42.5    34.3   124     39.2    31.7   124 
 SOUTH BRUSH CREEK        8400    13.6    13.2   103     18.6    17.4   107 
 TOWER                   10500    56.2    47.5   118     48.1    38.1   126 
 WEBBER SPRINGS           9200    32.3    28.5   113     37.4    26.6   141 
 WILLOW CREEK PASS        9540    20.7    12.9   160     16.9    13.3   127 
                                                -----                  -----
                Basin wide percent of average    124                    122 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    36.8    27.9   132     28.2    20.6   137 
 CASPER MTN.              7900    25.1    18.0   139     22.6    15.3   148 
 CHRISTINA LAKE           9980    20.9    16.1   130     24.0    17.7   136 
 DEADMAN HILL            10220    17.3    17.3   100     19.3    17.9   108 
 LAPRELE CREEK            8320    16.0    10.3   155     15.9    12.6   126 
 RENO HILL                8400    25.9    15.0   173     22.7    20.1   113 
 ROACH                    9700    23.1    17.8   130     22.9    22.4   102 
 SAND LAKE               10080    40.2    34.6   116     31.2    21.5   145 
 SOUTH PASS               9040    26.0    17.1   152     25.9    18.0   144 
 WINDY PEAK               7840    11.1     9.1   122     12.4    10.2   122 
                                                -----                  -----
                Basin wide percent of average    132                    128 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    15.0    11.1   135     28.7    16.2   177 
 DIVIDE PEAK              8800    28.2    21.6   131     26.1    24.0   109 
 OLD BATTLE              10000    42.5    34.3   124     39.2    31.7   124 
 SANDSTONE RS             8150    18.5    15.2   122     22.6    19.8   114 
 WHISKEY PARK             8950    39.3    30.0   131     33.9    29.7   114 
                                                -----                  -----
                Basin wide percent of average    128                    124 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    20.0    15.1   132     18.5    17.1   108 
 BLIND BULL SUM           8650    43.7    30.5   143     33.2    25.2   132 
 EAST RIM DIVIDE          7930    17.3    14.6   118     17.6    16.0   110 
 ELKHART PARK G.S.        9400    18.5    14.5   128     19.1    16.8   114 
 GROS VENTRE SUMMIT       8775    23.5    15.9   148     21.8    16.8   130 
 KENDALL R.S.             7740    23.9    13.8   173     24.1    16.4   147 
 LOOMIS PARK              8240      -M    17.2      *    27.8    19.9   140 
 NEW FORK LAKE            8340    15.7    11.0   143     13.6    15.2    89 
 SNIDER BASIN             8250    23.9    15.2   157     19.8    16.0   124 
 SPRING CREEK DIVIDE      9000    36.9    28.9   128     33.3    28.8   116 
 TRIPLE PEAK              8500    36.8    26.5   139     38.3    32.6   117 
                                                -----                  -----
                Basin wide percent of average    140                    121 


LOWER GREEN RIVER

 HAMS FORK                7840    15.4     8.5   181     15.1    14.1   107 
 HEWINTA                  9500    11.0    10.1   109     14.7    14.0   105 
 HICKERSON PARK           9150    10.4     6.7   155     10.8    10.2   106 
 HOLE-IN-ROCK             9150     8.5     6.3   135     11.2    10.2   110 
 INDIAN CREEK             9425    40.4    29.8   136     32.3    27.3   118 
 KELLEY R.S.              8180    24.5    17.5   140     26.4    19.8   133 
 STEEL CREEK PARK        10100    17.0    17.3    98     16.6    13.7   121 
                                                -----                  -----
                Basin wide percent of average    132                    116 


UPPER BEAR RIVER

 BUG LAKE                 7950    33.6    20.6   163     29.7    20.4   146 
 HAYDEN FORK              9400    18.1    13.2   137     26.0    20.1   129 
 KELLEY R.S.              8180    24.5    17.5   140     26.4    19.8   133 
 LILY LAKE                9050    18.1    13.1   138     20.1    15.7   128 
 MONTE CRISTO             8960    41.4    29.6   140     33.7    26.9   125 
 SALT RIVER SUMMIT        7600    22.0    14.1   156     24.0    17.8   135 
 TRIAL LAKE               9960    35.2    25.6   138     34.9    25.1   139 
                                                -----                  -----
                Basin wide percent of average    144                    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.