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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 MONDAY: MARCH 31 , 1997 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    30.1    17.7   170     34.7    22.7   153 
 COTTONWOOD CREEK         7600    31.5    24.3   130     32.5    25.6   127 
 GRANITE CREEK            6770    29.2    18.7   156     33.0    23.9   138 
 GRASSY LAKE              7265    46.0    36.1   127     53.1    37.9   140 
 GROS VENTRE SUMMIT       8775    22.8    15.7   145     21.5    16.2   133 
 LEWIS LAKE DIVIDE        7860    52.4    35.5   148     45.9    38.5   119 
 PHILLIPS BENCH           8200    42.7    29.3   146     45.8    30.5   150 
 SALT RIVER SUMMIT        7600    22.0    14.4   153     23.6    17.2   137 
 SNAKE RIVER STATION      6920    29.1    18.7   156     36.4    26.6   137 
 SPRING CREEK DIVIDE      9000    35.3    28.2   125     32.6    28.0   116 
 THUMB DIVIDE             7980    31.9    17.1   187       -M    21.2      *
 TOGWOTEE PASS            9580    34.2    25.1   136       -M    28.9      *
 TWO OCEAN PLATEAU        9360    45.0    26.7   169       -M    31.3      *
 WILLOW CREEK             8450    41.2    30.4   136     41.3    32.8   126 
                                                -----                  -----
                Basin wide percent of average    146                    134 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    35.1    23.7   148     30.1    18.1   166 
 BLACK BEAR               7950      -M    38.3      *      -M    41.1      *
 CANYON                   7940    23.5    13.0   181     26.2    14.3   183 
 FISHER CREEK             9100    55.7    35.9   155       -M    36.9      *
 MADISON PLATEAU          7750    41.6    24.7   168     42.2    26.5   159 
 NORTHEAST ENTRANCE       7350    12.1     9.2   132     19.3    11.8   164 
 PARKER PEAK              9400    31.2    21.7   144       -M    15.6      *
 SYLVAN LAKE              8420    32.3    22.2   145     32.6    19.2   170 
 THUMB DIVIDE             7980    31.9    17.1   187       -M    21.2      *
 TWO OCEAN PLATEAU        9360    45.0    26.7   169       -M    31.3      *
 WHISKEY CREEK            6800    25.5    17.4   147     31.5    22.1   143 
 WHITE MILL               8700    38.2    25.0   153       -M    28.5      *
 WOLVERINE                7650    14.2    11.7   121     15.4    12.7   121 
                                                -----                  -----
                Basin wide percent of average    156                    158 


WIND RIVER

 BURROUGHS CREEK          8750    23.9    15.0   159     25.7    16.6   155 
 CHRISTINA LAKE           9980    19.4    15.3   127     23.1    16.7   138 
 COLD SPRINGS             9630    10.1     8.4   120     11.9    10.5   113 
 HOBBS PARK              10100    17.1    15.0   114     13.3    14.1    94 
 LITTLE WARM              9620    18.0    11.5   157     20.0    13.2   152 
 SOUTH PASS               9040    25.2    16.3   155     24.5    17.0   144 
 ST. LAWRENCE ALT         8620     8.4     7.6   111     10.6    10.1   105 
 TOGWOTEE PASS            9580    34.2    25.1   136       -M    28.9      *
 TOWNSEND CREEK           8700     9.8     9.8   100     11.8    12.4    95 
                                                -----                  -----
                Basin wide percent of average    134                    127 


BIGHORN BASIN

 BALD MTN.                9375    22.0    20.4   108     18.3    17.3   106 
 BEAR TRAP MEADOW         7900     7.3     7.2   101      8.7     8.1   107 
 BLACKWATER               9780    37.9    22.3   170     28.8    18.0   160 
 BONE SPRINGS DIV         9350    18.9    16.4   115     16.3    15.0   109 
 EVENING STAR             9200    41.4    27.1   153     39.6    22.6   175 
 GRAVE SPRINGS            8550    12.5      -M      *    11.1     9.5   117 
 KIRWIN                   9550    14.6     9.9   147     15.8    10.7   148 
 LOST CREEK               8080      -M    13.6      *      -M    11.7      *
 MARQUETTE                8760    11.3     8.1   140     11.6     9.4   123 
 MIDDLE POWDER            7760    17.3    12.1   143     14.9    11.7   127 
 OWL CREEK                8975     8.2     4.6   178      6.7     6.2   108 
 POWDER RIVER PASS        9480     9.7    10.8    90     13.3    11.4   117 
 SHELL CREEK              9580    17.5    14.9   117     14.6    13.0   112 
 SYLVAN LAKE              8420    32.3    22.2   145     32.6    19.2   170 
 SYLVAN ROAD              8120    20.5    12.5   164     26.7    16.1   166 
 TIMBER CREEK             7950     7.4     6.3   117      8.0     6.9   116 
 YOUNTS PEAK              8350    24.1    17.2   140       -M    16.6      *
                                                -----                  -----
                Basin wide percent of average    137                    137 


SHOSHONE RIVER

 BLACKWATER               9780    37.9    22.3   170     28.8    18.0   160 
 EVENING STAR             9200    41.4    27.1   153     39.6    22.6   175 
 KIRWIN                   9550    14.6     9.9   147     15.8    10.7   148 
 MARQUETTE                8760    11.3     8.1   140     11.6     9.4   123 
 SYLVAN LAKE              8420    32.3    22.2   145     32.6    19.2   170 
 SYLVAN ROAD              8120    20.5    12.5   164     26.7    16.1   166 
 YOUNTS PEAK              8350    24.1    17.2   140       -M    16.6      *
                                                -----                  -----
                Basin wide percent of average    153                    162 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     7.3     7.2   101      8.7     8.1   107 
 BONE SPRINGS DIV         9350    18.9    16.4   115     16.3    15.0   109 
 BURGESS JUNCTION         7880    13.7    11.7   117     13.4    11.4   118 
 CLOUD PEAK RESERVOIR     9860    17.8    14.8   120     15.0    13.2   114 
 DOME LAKE                8880    13.1    13.7    96     14.1    13.1   108 
 GRAVE SPRINGS            8550    12.5      -M      *    11.1     9.5   117 
 HANSEN SAWMILL           8760     7.0     7.1    99      8.4     7.8   108 
 LOST CREEK               8080      -M    13.6      *      -M    11.7      *
 MIDDLE POWDER            7760    17.3    12.1   143     14.9    11.7   127 
 POWDER RIVER PASS        9480     9.7    10.8    90     13.3    11.4   117 
 SUCKER CREEK             8880    14.5    12.1   120     15.1    13.0   116 
 TIE CREEK                6870     7.5      -M      *    12.4    10.9   114 
                                                -----                  -----
                Basin wide percent of average    113                    114 


BELLE FOURCHE

 BLIND PARK               6890     9.8    11.0    89     14.6     9.9   147 
 NORTH RAPID CREEK        6130     9.4      -M      *    12.9      -M      *
 WARREN PEAK              6520    18.3    11.0   166       -M     7.9      *
                                                -----                  -----
                Basin wide percent of average    128                    147*


UPPER N. PLATTE RIVER

 COLUMBINE                9400    28.2    24.8   114     30.3    24.4   124 
 DIVIDE PEAK              8800    25.5    21.1   121     24.1    22.7   106 
 ELK RIVER                8700    26.2    19.9   132     24.2    19.1   127 
 JOE WRIGHT              10120    24.4    22.0   111     28.4    24.8   115 
 NORTH FRENCH CREEK      10100    35.1    25.4   138     27.6    23.4   118 
 OLD BATTLE              10000    39.1    32.0   122     36.8    30.0   123 
 SOUTH BRUSH CREEK        8400    13.6    13.3   102     17.3    16.2   107 
 TOWER                   10500    53.4    45.2   118     46.9    36.0   130 
 WEBBER SPRINGS           9200    30.9    28.1   110     35.1    25.1   140 
 WILLOW CREEK PASS        9540    17.5    11.9   147     14.3    12.5   114 
                                                -----                  -----
                Basin wide percent of average    121                    122 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    35.1    26.2   134     27.0    19.3   140 
 CASPER MTN.              7900    21.2    16.4   129     20.1    13.9   145 
 CHRISTINA LAKE           9980    19.4    15.3   127     23.1    16.7   138 
 DEADMAN HILL            10220    15.8    16.5    96     17.9    16.6   108 
 LAPRELE CREEK            8320    14.6    10.5   139     14.1    11.7   121 
 RENO HILL                8400    22.4    14.3   157     19.5    19.1   102 
 ROACH                    9700    22.8    17.3   132     21.2    21.0   101 
 SAND LAKE               10080    37.1    32.9   113     28.9    20.2   143 
 SOUTH PASS               9040    25.2    16.3   155     24.5    17.0   144 
 WINDY PEAK               7840    10.6     8.7   122     11.4     9.4   121 
                                                -----                  -----
                Basin wide percent of average    129                    126 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    14.4    11.3   127     27.8    15.2   183 
 DIVIDE PEAK              8800    25.5    21.1   121     24.1    22.7   106 
 OLD BATTLE              10000    39.1    32.0   122     36.8    30.0   123 
 SANDSTONE RS             8150    18.1    14.9   121     21.7    18.5   117 
 WHISKEY PARK             8950    36.6    28.8   127     32.7    28.0   117 
                                                -----                  -----
                Basin wide percent of average    124                    125 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    19.4    14.6   133     18.4    16.5   112 
 BLIND BULL SUM           8650    42.4    29.6   143     32.8    24.5   134 
 EAST RIM DIVIDE          7930    16.9    14.0   121     17.3    15.4   112 
 ELKHART PARK G.S.        9400    18.2    13.8   132     18.5    16.2   114 
 GROS VENTRE SUMMIT       8775    22.8    15.7   145     21.5    16.2   133 
 KENDALL R.S.             7740    24.3    14.7   165     23.9    15.8   151 
 LOOMIS PARK              8240      -M    17.5      *    27.4    19.2   143 
 NEW FORK LAKE            8340    15.4    11.3   136     13.5    14.7    92 
 SNIDER BASIN             8250    23.6    14.8   159     19.3    15.4   125 
 SPRING CREEK DIVIDE      9000    35.3    28.2   125     32.6    28.0   116 
 TRIPLE PEAK              8500    37.2    25.8   144     37.6    31.6   119 
                                                -----                  -----
                Basin wide percent of average    140                    123 


LOWER GREEN RIVER

 HAMS FORK                7840    15.9    12.3   129     14.8    13.6   109 
 HEWINTA                  9500    10.9    11.4    96     14.0    13.0   108 
 HICKERSON PARK           9150     8.3     6.8   122      9.3     9.4    99 
 HOLE-IN-ROCK             9150     6.0     6.4    94      9.7     9.4   103 
 INDIAN CREEK             9425    40.3    28.8   140     31.6    26.5   119 
 KELLEY R.S.              8180    24.2    17.2   141     26.1    19.1   137 
 STEEL CREEK PARK        10100    16.1    16.5    98     15.7    12.7   124 
                                                -----                  -----
                Basin wide percent of average    122                    117 


UPPER BEAR RIVER

 BUG LAKE                 7950    33.2    21.2   157     29.4    19.5   151 
 HAYDEN FORK              9400    17.2    16.4   105     25.1    19.0   132 
 KELLEY R.S.              8180    24.2    17.2   141     26.1    19.1   137 
 LILY LAKE                9050    16.9    13.3   127     19.3    14.7   131 
 MONTE CRISTO             8960    40.0    29.7   135     32.9    25.5   129 
 SALT RIVER SUMMIT        7600    22.0    14.4   153     23.6    17.2   137 
 TRIAL LAKE               9960    34.2    24.9   137     34.4    23.9   144 
                                                -----                  -----
                Basin wide percent of average    137                    137 

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


-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.