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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: MAY 26 , 1997 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     5.2     1.7   306*    40.7    27.4   149 
 COTTONWOOD CREEK         7600    12.2     4.9   249     41.7    30.5   137 
 GRANITE CREEK            6770     8.8     3.7   238     36.9    29.2   126 
 GRASSY LAKE              7265    23.5    17.4   135     63.5    45.4   140 
 GROS VENTRE SUMMIT       8775     9.3     3.6   258     24.3    19.7   123 
 LEWIS LAKE DIVIDE        7860    33.0    23.3   142     65.5    46.2   142 
 PHILLIPS BENCH           8200    28.8    20.3   142     52.5    36.4   144 
 SALT RIVER SUMMIT        7600      .0      .0   100*    28.5    21.0   136 
 SNAKE RIVER STATION      6920      .1     4.1     2     42.4    31.9   133 
 SPRING CREEK DIVIDE      9000    24.0    21.5   112     38.5    33.2   116 
 THUMB DIVIDE             7980     7.9     4.0   198     38.7    25.6   151 
 TOGWOTEE PASS            9580    27.9    24.4   114     41.3    34.6   119 
 TWO OCEAN PLATEAU        9360    39.2    23.8   165       -M    37.7      *
 WILLOW CREEK             8450    24.7    22.2   111     56.2    39.3   143 
                                                -----                  -----
                Basin wide percent of average    140                    136 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    33.4    21.3   157     36.7    24.3   151 
 BLACK BEAR               7950      -M    30.9      *      -M    49.8      *
 CANYON                   7940     5.4     3.2   169     30.4    18.4   165 
 FISHER CREEK             9100    48.4    33.7   144     57.7    46.1   125 
 MADISON PLATEAU          7750    21.0    11.5   183     47.4    32.6   145 
 NORTHEAST ENTRANCE       7350      .2     1.0    20     24.3    16.0   152 
 PARKER PEAK              9400    27.5    20.0   138     29.4    20.9   141 
 SYLVAN LAKE              8420    18.6    16.4   113     38.8    25.5   152 
 THUMB DIVIDE             7980     7.9     4.0   198     38.7    25.6   151 
 TWO OCEAN PLATEAU        9360    39.2    23.8   165       -M    37.7      *
 WHISKEY CREEK            6800     6.0     4.1   146     36.2    27.1   134 
 WHITE MILL               8700    32.7    21.3   154     37.9    35.8   106 
 WOLVERINE                7650      .3     1.1    27*    20.5    17.5   117 
                                                -----                  -----
                Basin wide percent of average    149                    137 


WIND RIVER

 BURROUGHS CREEK          8750     9.2     3.7   249     29.9    21.9   137 
 CHRISTINA LAKE           9980    13.8    12.4   111     28.3    22.8   124 
 COLD SPRINGS             9630      .4     1.2    33     17.6    15.5   114 
 HOBBS PARK              10100    14.2    12.0   118     20.1    20.2   100 
 LITTLE WARM              9620     1.3     2.4    54     26.5    18.7   142 
 SOUTH PASS               9040    18.1    12.3   147     30.2    23.3   130 
 ST. LAWRENCE ALT         8620      .1      .9    11     16.7    14.4   116 
 TOGWOTEE PASS            9580    27.9    24.4   114     41.3    34.6   119 
 TOWNSEND CREEK           8700      .0     3.3     0     18.8    18.0   104 
                                                -----                  -----
                Basin wide percent of average    117                    121 


BIGHORN BASIN

 BALD MTN.                9375    19.5    20.6    95     23.9    24.4    98 
 BEAR TRAP MEADOW         7900      .1      .5    20*    13.8    13.3   104 
 BLACKWATER               9780    31.7    20.9   152     35.2    23.3   151 
 BONE SPRINGS DIV         9350    14.0    11.1   126     22.3    21.4   104 
 EVENING STAR             9200    34.3    27.2   126     48.1    29.1   165 
 GRAVE SPRINGS            8550      .0      -M      *    15.1    15.5    97 
 KIRWIN                   9550     4.0     6.9    58     21.6    15.6   138 
 LOST CREEK               8080    10.9     8.6   127     21.2    18.1   117 
 MARQUETTE                8760     3.9     5.3    74     18.3    16.6   110 
 MIDDLE POWDER            7760     3.8     6.6    58     19.7    17.5   113 
 OWL CREEK                8975      .2      .4    50*    10.8    10.2   106 
 POWDER RIVER PASS        9480     8.0     3.0   267     19.5    17.5   111 
 SHELL CREEK              9580    13.9    13.2   105     20.1    19.0   106 
 SYLVAN LAKE              8420    18.6    16.4   113     38.8    25.5   152 
 SYLVAN ROAD              8120      .2     2.1    10     31.5    21.2   149 
 TIMBER CREEK             7950      .6     1.0    60     13.0    13.1    99 
 YOUNTS PEAK              8350    14.3    11.5   124     31.3    21.7   144 
                                                -----                  -----
                Basin wide percent of average    115                    125 


SHOSHONE RIVER

 BLACKWATER               9780    31.7    20.9   152     35.2    23.3   151 
 EVENING STAR             9200    34.3    27.2   126     48.1    29.1   165 
 KIRWIN                   9550     4.0     6.9    58     21.6    15.6   138 
 MARQUETTE                8760     3.9     5.3    74     18.3    16.6   110 
 SYLVAN LAKE              8420    18.6    16.4   113     38.8    25.5   152 
 SYLVAN ROAD              8120      .2     2.1    10     31.5    21.2   149 
 YOUNTS PEAK              8350    14.3    11.5   124     31.3    21.7   144 
                                                -----                  -----
                Basin wide percent of average    118                    147 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900      .1      .5    20*    13.8    13.3   104 
 BONE SPRINGS DIV         9350    14.0    11.1   126     22.3    21.4   104 
 BURGESS JUNCTION         7880     6.7     5.4   124     19.0    17.1   111 
 CLOUD PEAK RESERVOIR     9860    14.2    11.1   128     22.1    20.5   108 
 DOME LAKE                8880     4.9     6.2    79     20.7    19.5   106 
 GRAVE SPRINGS            8550      .0      -M      *    15.1    15.5    97 
 HANSEN SAWMILL           8760      .0     1.9     0     14.0    12.5   112 
 LOST CREEK               8080    10.9     8.6   127     21.2    18.1   117 
 MIDDLE POWDER            7760     3.8     6.6    58     19.7    17.5   113 
 POWDER RIVER PASS        9480     8.0     3.0   267     19.5    17.5   111 
 SUCKER CREEK             8880     9.8     6.3   156     22.6    19.7   115 
 TIE CREEK                6870      .2      -M      *    18.8    16.4   115 
                                                -----                  -----
                Basin wide percent of average    119                    109 


BELLE FOURCHE

 BLIND PARK               6890      .0     1.6     0     21.7    17.3   125 
 NORTH RAPID CREEK        6130      .0      -M      *    20.2      -M      *
 WARREN PEAK              6520      .2     1.7    12     17.2    12.7   135 
                                                -----                  -----
                Basin wide percent of average      6                    130 


UPPER N. PLATTE RIVER

 COLUMBINE                9400     2.3     6.7    34     39.3    30.4   129 
 DIVIDE PEAK              8800     4.1     6.3    65     30.2    30.1   100 
 ELK RIVER                8700      .2     3.1     6     31.5    24.0   131 
 JOE WRIGHT              10120    21.5    19.4   111     39.2    34.0   115 
 NORTH FRENCH CREEK      10100    27.0    22.5   120     37.2    31.5   118 
 OLD BATTLE              10000    38.2    28.6   134     47.6    38.8   123 
 SOUTH BRUSH CREEK        8400      .0     2.7     0     22.7    22.8   100 
 TOWER                   10500    57.9    46.7   124     61.0    48.2   127 
 WEBBER SPRINGS           9200    16.5    13.9   119     43.1    33.1   130 
 WILLOW CREEK PASS        9540    12.0     5.2   231     22.5    17.7   127 
                                                -----                  -----
                Basin wide percent of average    116                    121 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    21.8    17.1   127     35.3    26.5   133 
 CASPER MTN.              7900     7.0     6.2   113     27.7    22.1   125 
 CHRISTINA LAKE           9980    13.8    12.4   111     28.3    22.8   124 
 DEADMAN HILL            10220    14.5    13.2   110     25.9    23.9   108 
 LAPRELE CREEK            8320      .2     1.8    11     18.6    17.4   107 
 RENO HILL                8400     7.0     4.9   143     27.4    23.9   115 
 ROACH                    9700    12.5    10.5   119     29.0    29.3    99 
 SAND LAKE               10080    34.0    28.4   120     37.6    27.7   136 
 SOUTH PASS               9040    18.1    12.3   147     30.2    23.3   130 
 WINDY PEAK               7840      .2     1.2    17     15.6    15.0   104 
                                                -----                  -----
                Basin wide percent of average    120                    119 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .1      .0      *      -M    20.4      *
 DIVIDE PEAK              8800     4.1     6.3    65     30.2    30.1   100 
 OLD BATTLE              10000    38.2    28.6   134     47.6    38.8   123 
 SANDSTONE RS             8150      .0      .8     0*    26.6    25.4   105 
 WHISKEY PARK             8950    35.9    16.7   215     41.6    37.5   111 
                                                -----                  -----
                Basin wide percent of average    149                    111 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100      .0     3.5     0     20.3    20.2   100 
 BLIND BULL SUM           8650    41.9    18.5   226     38.2    29.0   132 
 EAST RIM DIVIDE          7930     3.0     9.0    33     20.0    18.8   106 
 ELKHART PARK G.S.        9400     2.3     6.3    37     22.0    19.8   111 
 GROS VENTRE SUMMIT       8775     9.3     3.6   258     24.3    19.7   123 
 KENDALL R.S.             7740      .0      .0   100*    26.2    19.3   136 
 LOOMIS PARK              8240      -M     4.0      *    31.2    23.3   134 
 NEW FORK LAKE            8340      .1     2.2     5     16.4    17.9    92 
 SNIDER BASIN             8250      .0     3.0     0     22.4    18.8   119 
 SPRING CREEK DIVIDE      9000    24.0    21.5   112     38.5    33.2   116 
 TRIPLE PEAK              8500    14.6    17.0    86     45.3    38.1   119 
                                                -----                  -----
                Basin wide percent of average    113                    118 


LOWER GREEN RIVER

 HAMS FORK                7840      .0      .0   100*    19.7    16.6   119 
 HEWINTA                  9500      .0      .0   100*    17.9    18.5    97 
 HICKERSON PARK           9150      .0      .2     0*    13.2    14.6    90 
 HOLE-IN-ROCK             9150      .2      .2   100*    14.1    14.6    97 
 INDIAN CREEK             9425    25.6    20.0   128     37.7    31.7   119 
 KELLEY R.S.              8180     2.0     3.5    57     36.1    23.3   155 
 STEEL CREEK PARK        10100    12.2    13.6    90     20.9    19.1   109 
                                                -----                  -----
                Basin wide percent of average    107*                   115 


UPPER BEAR RIVER

 BUG LAKE                 7950    11.8     5.1   231     35.5    24.5   145 
 HAYDEN FORK              9400      .3      .2   150*    31.3    25.6   122 
 KELLEY R.S.              8180     2.0     3.5    57     36.1    23.3   155 
 LILY LAKE                9050      .5     2.7    19     24.9    20.5   121 
 MONTE CRISTO             8960    19.7    14.1   140     40.8    33.0   124 
 SALT RIVER SUMMIT        7600      .0      .0   100*    28.5    21.0   136 
 TRIAL LAKE               9960    20.5    15.2   135     40.7    31.0   131 
                                                -----                  -----
                Basin wide percent of average    134                    133 

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


-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.