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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: MAY 3 , 1997 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    25.9     9.9   262     38.9    25.4   153 
 COTTONWOOD CREEK         7600    33.0    19.1   173     39.5    28.4   139 
 GRANITE CREEK            6770    25.2    12.1   208     35.6    27.0   132 
 GRASSY LAKE              7265    48.0    32.9   146     61.2    42.2   145 
 GROS VENTRE SUMMIT       8775    23.8    13.4   178     23.1    18.2   127 
 LEWIS LAKE DIVIDE        7860    54.7    33.7   162     63.5    42.9   148 
 PHILLIPS BENCH           8200    43.5    28.9   151     50.9    33.8   151 
 SALT RIVER SUMMIT        7600    20.1     9.3   216     26.7    19.3   138 
 SNAKE RIVER STATION      6920    22.2    15.7   141     40.8    29.6   138 
 SPRING CREEK DIVIDE      9000    42.1    29.1   145     37.3    31.0   120 
 THUMB DIVIDE             7980    29.9    14.5   206     36.9    23.8   155 
 TOGWOTEE PASS            9580    38.7    28.0   138     39.4    32.1   123 
 TWO OCEAN PLATEAU        9360    50.8    27.4   185       -M    34.9      *
 WILLOW CREEK             8450    45.7    31.3   146     53.3    36.4   146 
                                                -----                  -----
                Basin wide percent of average    165                    140 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275      -M    25.8      *    34.5    21.4   161 
 BLACK BEAR               7950      -M    39.4      *      -M    46.8      *
 CANYON                   7940    22.1    10.3   215       -M    16.5      *
 FISHER CREEK             9100    60.8    38.5   158       -M    42.5      *
 MADISON PLATEAU          7750    42.5    23.1   184     46.0    30.1   153 
 NORTHEAST ENTRANCE       7350     8.8     5.4   163     22.7    14.1   161 
 PARKER PEAK              9400    37.9    23.6   161       -M    18.4      *
 SYLVAN LAKE              8420    32.3    23.3   139     36.9    22.6   163 
 THUMB DIVIDE             7980    29.9    14.5   206     36.9    23.8   155 
 TWO OCEAN PLATEAU        9360    50.8    27.4   185       -M    34.9      *
 WHISKEY CREEK            6800    22.8    14.4   158     34.9    25.1   139 
 WHITE MILL               8700    42.8    26.1   164       -M    32.9      *
 WOLVERINE                7650    12.7     7.4   172     18.4    15.4   119 
                                                -----                  -----
                Basin wide percent of average    170                    151 


WIND RIVER

 BURROUGHS CREEK          8750    24.4    12.0   203     28.7    19.6   146 
 CHRISTINA LAKE           9980    23.2    17.9   130     27.5    20.3   135 
 COLD SPRINGS             9630     8.8     6.2   142     16.5    13.3   124 
 HOBBS PARK              10100    23.3    17.8   131     19.6    17.5   112 
 LITTLE WARM              9620    19.8     9.7   204     24.3    16.5   147 
 SOUTH PASS               9040    28.4    17.9   159     30.0    20.8   144 
 ST. LAWRENCE ALT         8620    11.8     5.0   236     16.3    12.6   129 
 TOGWOTEE PASS            9580    38.7    28.0   138     39.4    32.1   123 
 TOWNSEND CREEK           8700    13.5     9.0   150     18.3    15.7   117 
                                                -----                  -----
                Basin wide percent of average    155                    131 


BIGHORN BASIN

 BALD MTN.                9375    26.5    24.1   110     22.5    21.1   107 
 BEAR TRAP MEADOW         7900     5.6     3.8   147     12.8    10.8   119 
 BLACKWATER               9780    43.2    25.6   169     33.8    20.8   162 
 BONE SPRINGS DIV         9350    22.5    18.1   124     21.1    18.4   115 
 EVENING STAR             9200    45.8    30.7   149     45.9    26.2   175 
 GRAVE SPRINGS            8550    13.6      -M      *    14.7    12.6   117 
 KIRWIN                   9550    17.9    11.5   156     20.1    13.5   149 
 LOST CREEK               8080    21.6    15.5   139     20.4    15.2   134 
 MARQUETTE                8760    15.3     8.5   180     16.2    13.7   118 
 MIDDLE POWDER            7760    19.6    14.7   133     18.7    15.0   125 
 OWL CREEK                8975     7.5     3.1   242      9.4     8.3   113 
 POWDER RIVER PASS        9480      -M     9.9      *    17.3    14.9   116 
 SHELL CREEK              9580    21.5    17.0   126     19.2    16.2   119 
 SYLVAN LAKE              8420    32.3    23.3   139     36.9    22.6   163 
 SYLVAN ROAD              8120    17.1     7.3   234     30.2    18.8   161 
 TIMBER CREEK             7950     7.6     5.5   138     11.6    10.2   114 
 YOUNTS PEAK              8350    25.3    17.9   141       -M    19.5      *
                                                -----                  -----
                Basin wide percent of average    145                    136 


SHOSHONE RIVER

 BLACKWATER               9780    43.2    25.6   169     33.8    20.8   162 
 EVENING STAR             9200    45.8    30.7   149     45.9    26.2   175 
 KIRWIN                   9550    17.9    11.5   156     20.1    13.5   149 
 MARQUETTE                8760    15.3     8.5   180     16.2    13.7   118 
 SYLVAN LAKE              8420    32.3    23.3   139     36.9    22.6   163 
 SYLVAN ROAD              8120    17.1     7.3   234     30.2    18.8   161 
 YOUNTS PEAK              8350    25.3    17.9   141       -M    19.5      *
                                                -----                  -----
                Basin wide percent of average    158                    158 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     5.6     3.8   147     12.8    10.8   119 
 BONE SPRINGS DIV         9350    22.5    18.1   124     21.1    18.4   115 
 BURGESS JUNCTION         7880    17.4    13.2   132     17.5    14.6   120 
 CLOUD PEAK RESERVOIR     9860    23.1    17.5   132     20.6    17.4   118 
 DOME LAKE                8880      -M    14.3      *    19.7    16.6   119 
 GRAVE SPRINGS            8550    13.6      -M      *    14.7    12.6   117 
 HANSEN SAWMILL           8760     7.2     6.5   111     12.1    10.5   115 
 LOST CREEK               8080    21.6    15.5   139     20.4    15.2   134 
 MIDDLE POWDER            7760    19.6    14.7   133     18.7    15.0   125 
 POWDER RIVER PASS        9480      -M     9.9      *    17.3    14.9   116 
 SUCKER CREEK             8880      -M    13.3      *    21.4    16.8   127 
 TIE CREEK                6870     8.1      -M      *    17.5    14.0   125 
                                                -----                  -----
                Basin wide percent of average    131                    121 


BELLE FOURCHE

 BLIND PARK               6890     8.2     8.9    92     19.4    14.1   138 
 NORTH RAPID CREEK        6130    10.7      -M      *    18.3      -M      *
 WARREN PEAK              6520    20.7     8.9   233       -M    10.5      *
                                                -----                  -----
                Basin wide percent of average    162                    138*


UPPER N. PLATTE RIVER

 COLUMBINE                9400    29.8    21.0   142     38.2    28.3   135 
 DIVIDE PEAK              8800    28.2    18.3   154     29.9    27.5   109 
 ELK RIVER                8700    26.3    15.1   174     30.7    22.3   138 
 JOE WRIGHT              10120    36.0    24.6   146     37.4    30.6   122 
 NORTH FRENCH CREEK      10100    41.0    29.0   141     36.1    28.3   128 
 OLD BATTLE              10000    49.8    38.0   131     46.5    36.0   129 
 SOUTH BRUSH CREEK        8400    11.0     9.9   111     21.7    20.8   104 
 TOWER                   10500    31.8    51.1    62     57.5    43.6   132 
 WEBBER SPRINGS           9200    35.0    25.2   139     42.5    30.8   138 
 WILLOW CREEK PASS        9540      -M    13.1      *    20.1    15.6   129 
                                                -----                  -----
                Basin wide percent of average    124                    127 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    42.5    28.3   150     34.7    24.0   145 
 CASPER MTN.              7900    26.7    16.9   158     27.2    19.1   142 
 CHRISTINA LAKE           9980    23.2    17.9   130     27.5    20.3   135 
 DEADMAN HILL            10220    24.2    19.0   127     24.5    21.3   115 
 LAPRELE CREEK            8320    12.9     5.9   219     18.0    14.9   121 
 RENO HILL                8400    25.8    12.7   203     26.6    22.5   118 
 ROACH                    9700    26.4    17.8   148     27.7    26.1   106 
 SAND LAKE               10080    45.2    36.9   122     35.0    25.0   140 
 SOUTH PASS               9040    28.4    17.9   159     30.0    20.8   144 
 WINDY PEAK               7840     6.9     7.3    95     14.3    12.4   115 
                                                -----                  -----
                Basin wide percent of average    145                    129 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     6.1     4.1   149     32.1    18.7   172 
 DIVIDE PEAK              8800    28.2    18.3   154     29.9    27.5   109 
 OLD BATTLE              10000    49.8    38.0   131     46.5    36.0   129 
 SANDSTONE RS             8150    13.6     8.7   156     26.2    23.2   113 
 WHISKEY PARK             8950    45.4    29.0   157     40.9    34.3   119 
                                                -----                  -----
                Basin wide percent of average    146                    126 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    18.4    13.3   138     19.5    18.6   105 
 BLIND BULL SUM           8650    44.7    22.7   197     36.9    27.1   136 
 EAST RIM DIVIDE          7930    16.6    14.5   114     18.8    17.4   108 
 ELKHART PARK G.S.        9400    18.9    13.4   141     20.9    18.3   114 
 GROS VENTRE SUMMIT       8775    23.8    13.4   178     23.1    18.2   127 
 KENDALL R.S.             7740    19.1     9.1   210     25.0    17.7   141 
 LOOMIS PARK              8240      -M    14.6      *    29.7    21.6   138 
 NEW FORK LAKE            8340    12.3     8.7   141     15.0    16.5    91 
 SNIDER BASIN             8250    21.2    12.4   171     21.9    17.3   127 
 SPRING CREEK DIVIDE      9000    42.1    29.1   145     37.3    31.0   120 
 TRIPLE PEAK              8500    35.3    24.5   144     43.7    35.2   124 
                                                -----                  -----
                Basin wide percent of average    157                    122 


LOWER GREEN RIVER

 HAMS FORK                7840    13.1     4.9   267     18.8    15.3   123 
 HEWINTA                  9500     9.2     4.5   204     17.3    16.5   105 
 HICKERSON PARK           9150     9.7     2.6   373     12.5    12.5   100 
 HOLE-IN-ROCK             9150     8.2     2.0   410     12.9    12.5   103 
 INDIAN CREEK             9425    43.8    28.3   155     36.8    29.4   125 
 KELLEY R.S.              8180    23.1    14.3   162     35.1    21.5   163 
 STEEL CREEK PARK        10100    21.0    18.6   113     19.9    16.3   122 
                                                -----                  -----
                Basin wide percent of average    170                    124 


UPPER BEAR RIVER

 BUG LAKE                 7950    34.6    15.2   228     34.4    22.7   152 
 HAYDEN FORK              9400    15.2     5.8   262     29.9    23.2   129 
 KELLEY R.S.              8180    23.1    14.3   162     35.1    21.5   163 
 LILY LAKE                9050    16.6     8.3   200     23.7    18.2   130 
 MONTE CRISTO             8960    43.1    25.6   168     39.3    30.5   129 
 SALT RIVER SUMMIT        7600    20.1     9.3   216     26.7    19.3   138 
 TRIAL LAKE               9960    36.9    23.6   156     37.0    28.5   130 
                                                -----                  -----
                Basin wide percent of average    186                    138 

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


-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.