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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: MAY 28 , 1997 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     4.0     1.1   364*    40.7    27.6   147 
 COTTONWOOD CREEK         7600    11.0     3.3   333     41.8    30.7   136 
 GRANITE CREEK            6770     7.1     3.0   237     37.0    29.4   126 
 GRASSY LAKE              7265    22.3    15.6   143     63.5    45.7   139 
 GROS VENTRE SUMMIT       8775     7.8     2.4   325     24.3    19.8   123 
 LEWIS LAKE DIVIDE        7860    31.4    22.1   142     65.5    46.5   141 
 PHILLIPS BENCH           8200    27.7    19.4   143     52.7    36.6   144 
 SALT RIVER SUMMIT        7600      .0      .0   100*    28.5    21.1   135 
 SNAKE RIVER STATION      6920      .1     2.7     4     42.4    32.1   132 
 SPRING CREEK DIVIDE      9000    23.9    20.6   116     38.5    33.4   115 
 THUMB DIVIDE             7980     6.5     2.6   250     38.8    25.8   150 
 TOGWOTEE PASS            9580    27.8    24.2   115     41.4    34.9   119 
 TWO OCEAN PLATEAU        9360    40.1    23.4   171       -M    37.9      *
 WILLOW CREEK             8450    23.9    21.2   113     56.2    39.5   142 
                                                -----                  -----
                Basin wide percent of average    145                    135 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    33.2    20.7   160     36.8    24.5   150 
 BLACK BEAR               7950      -M    29.7      *      -M    50.1      *
 CANYON                   7940     4.3     2.6   165     30.4    18.6   163 
 FISHER CREEK             9100    48.7    33.0   148     57.8    46.4   125 
 MADISON PLATEAU          7750    19.7    10.2   193     47.4    32.9   144 
 NORTHEAST ENTRANCE       7350      .2      .8    25*    24.3    16.2   150 
 PARKER PEAK              9400    27.3    19.6   139     29.6    21.1   140 
 SYLVAN LAKE              8420    18.2    15.6   117     38.8    25.8   150 
 THUMB DIVIDE             7980     6.5     2.6   250     38.8    25.8   150 
 TWO OCEAN PLATEAU        9360    40.1    23.4   171       -M    37.9      *
 WHISKEY CREEK            6800     3.7     3.2   116     36.5    27.3   134 
 WHITE MILL               8700    32.4    20.7   157     37.9    36.1   105 
 WOLVERINE                7650      .3      .7    43*    20.7    17.7   117 
                                                -----                  -----
                Basin wide percent of average    153                    136 


WIND RIVER

 BURROUGHS CREEK          8750     7.3     3.2   228     29.9    22.1   135 
 CHRISTINA LAKE           9980    14.1    11.6   122     29.0    23.1   126 
 COLD SPRINGS             9630      .2      .9    22     17.8    15.7   113 
 HOBBS PARK              10100    15.4    11.1   139     21.2    20.4   104 
 LITTLE WARM              9620      .4     1.8    22     26.5    18.9   140 
 SOUTH PASS               9040      -M    11.5      *    31.0    23.6   131 
 ST. LAWRENCE ALT         8620      .1      .6    17*    17.8    14.5   123 
 TOGWOTEE PASS            9580    27.8    24.2   115     41.4    34.9   119 
 TOWNSEND CREEK           8700      .2     2.8     7     20.0    18.2   110 
                                                -----                  -----
                Basin wide percent of average    117                    123 


BIGHORN BASIN

 BALD MTN.                9375    19.2    19.9    96     24.0    24.7    97 
 BEAR TRAP MEADOW         7900      .1      .3    33*    13.9    13.5   103 
 BLACKWATER               9780    32.2    20.2   159     35.4    23.6   150 
 BONE SPRINGS DIV         9350    13.0    10.1   129     22.4    21.7   103 
 EVENING STAR             9200    34.4    26.6   129     48.1    29.4   164 
 GRAVE SPRINGS            8550      .0      -M      *    15.3    15.7    97 
 KIRWIN                   9550     3.0     6.3    48     21.7    15.8   137 
 LOST CREEK               8080    10.1     7.6   133     21.5    18.3   117 
 MARQUETTE                8760     3.1     4.9    63     18.3    16.8   109 
 MIDDLE POWDER            7760     2.6     5.2    50     19.9    17.8   112 
 OWL CREEK                8975      .2      .3    67*    11.0    10.4   106 
 POWDER RIVER PASS        9480     7.8     2.5   312     19.8    17.7   112 
 SHELL CREEK              9580    13.8    12.6   110     20.2    19.3   105 
 SYLVAN LAKE              8420    18.2    15.6   117     38.8    25.8   150 
 SYLVAN ROAD              8120      .2     1.7    12     31.5    21.4   147 
 TIMBER CREEK             7950      .1      .7    14     13.2    13.3    99 
 YOUNTS PEAK              8350    13.2    10.7   123     31.4    21.9   143 
                                                -----                  -----
                Basin wide percent of average    118                    124 


SHOSHONE RIVER

 BLACKWATER               9780    32.2    20.2   159     35.4    23.6   150 
 EVENING STAR             9200    34.4    26.6   129     48.1    29.4   164 
 KIRWIN                   9550     3.0     6.3    48     21.7    15.8   137 
 MARQUETTE                8760     3.1     4.9    63     18.3    16.8   109 
 SYLVAN LAKE              8420    18.2    15.6   117     38.8    25.8   150 
 SYLVAN ROAD              8120      .2     1.7    12     31.5    21.4   147 
 YOUNTS PEAK              8350    13.2    10.7   123     31.4    21.9   143 
                                                -----                  -----
                Basin wide percent of average    121                    146 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900      .1      .3    33*    13.9    13.5   103 
 BONE SPRINGS DIV         9350    13.0    10.1   129     22.4    21.7   103 
 BURGESS JUNCTION         7880     5.8     4.4   132     19.2    17.3   111 
 CLOUD PEAK RESERVOIR     9860    14.6    10.1   145     22.6    20.8   109 
 DOME LAKE                8880     4.5     5.4    83     21.0    19.7   107 
 GRAVE SPRINGS            8550      .0      -M      *    15.3    15.7    97 
 HANSEN SAWMILL           8760      .0     1.6     0     14.2    12.7   112 
 LOST CREEK               8080    10.1     7.6   133     21.5    18.3   117 
 MIDDLE POWDER            7760     2.6     5.2    50     19.9    17.8   112 
 POWDER RIVER PASS        9480     7.8     2.5   312     19.8    17.7   112 
 SUCKER CREEK             8880    10.1     5.5   184     23.1    20.0   116 
 TIE CREEK                6870      .1      -M      *    19.4    16.6   117 
                                                -----                  -----
                Basin wide percent of average    130                    110 


BELLE FOURCHE

 BLIND PARK               6890      .0     1.1     0*    22.1    17.6   126 
 NORTH RAPID CREEK        6130      .0      -M      *    20.7      -M      *
 WARREN PEAK              6520      .1     1.2     8*    18.2    12.9   141 
                                                -----                  -----
                Basin wide percent of average      4*                   132 


UPPER N. PLATTE RIVER

 COLUMBINE                9400     2.1     5.4    39     39.8    30.5   130 
 DIVIDE PEAK              8800     4.8     5.2    92     31.5    30.3   104 
 ELK RIVER                8700      .0     2.2     0     32.5    24.2   134 
 JOE WRIGHT              10120    22.3    18.7   119     40.1    34.3   117 
 NORTH FRENCH CREEK      10100    28.0    21.7   129     38.5    31.7   121 
 OLD BATTLE              10000    39.0    27.0   144     48.5    39.1   124 
 SOUTH BRUSH CREEK        8400      .0     2.2     0     23.4    23.0   102 
 TOWER                   10500    59.2    45.9   129     62.2    48.6   128 
 WEBBER SPRINGS           9200    16.8    12.7   132     43.5    33.3   131 
 WILLOW CREEK PASS        9540    11.5     4.2   274     22.8    17.9   127 
                                                -----                  -----
                Basin wide percent of average    127                    122 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    22.0    15.6   141     35.7    26.7   134 
 CASPER MTN.              7900     7.2     5.3   136     28.4    22.4   127 
 CHRISTINA LAKE           9980    14.1    11.6   122     29.0    23.1   126 
 DEADMAN HILL            10220    15.0    12.2   123     26.6    24.1   110 
 LAPRELE CREEK            8320      .2     1.6    12     19.6    17.7   111 
 RENO HILL                8400     7.9     4.2   188     28.3    24.1   117 
 ROACH                    9700    12.2     9.5   128     29.4    29.6    99 
 SAND LAKE               10080    33.3    27.1   123     38.3    27.9   137 
 SOUTH PASS               9040      -M    11.5      *    31.0    23.6   131 
 WINDY PEAK               7840      .2      .8    25*    16.4    15.2   108 
                                                -----                  -----
                Basin wide percent of average    128                    121 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .2      .0      *      -M    20.6      *
 DIVIDE PEAK              8800     4.8     5.2    92     31.5    30.3   104 
 OLD BATTLE              10000    39.0    27.0   144     48.5    39.1   124 
 SANDSTONE RS             8150      .0      .5     0*    27.5    25.6   107 
 WHISKEY PARK             8950    37.0    15.1   245     42.4    37.7   112 
                                                -----                  -----
                Basin wide percent of average    169                    113 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100      .0     2.3     0     20.6    20.3   101 
 BLIND BULL SUM           8650    40.5    17.8   228     38.3    29.2   131 
 EAST RIM DIVIDE          7930     1.9     8.3    23     20.0    19.0   105 
 ELKHART PARK G.S.        9400      .5     5.7     9     22.0    19.9   111 
 GROS VENTRE SUMMIT       8775     7.8     2.4   325     24.3    19.8   123 
 KENDALL R.S.             7740      .0      .0   100*    26.2    19.4   135 
 LOOMIS PARK              8240      -M     2.7      *    31.2    23.5   133 
 NEW FORK LAKE            8340      .0     1.5     0     16.4    18.1    91 
 SNIDER BASIN             8250      .0     2.0     0     22.4    18.9   119 
 SPRING CREEK DIVIDE      9000    23.9    20.6   116     38.5    33.4   115 
 TRIPLE PEAK              8500    13.9    16.2    86     45.5    38.3   119 
                                                -----                  -----
                Basin wide percent of average    115                    118 


LOWER GREEN RIVER

 HAMS FORK                7840      .0      .0   100*    19.8    16.7   119 
 HEWINTA                  9500      .0      .0   100*    17.9    18.7    96 
 HICKERSON PARK           9150      .0      .1     0*    13.3    14.8    90 
 HOLE-IN-ROCK             9150      .0      .2     0*    14.1    14.8    95 
 INDIAN CREEK             9425    25.5    19.2   133     37.8    31.9   118 
 KELLEY R.S.              8180     1.0     2.4    42     36.2    23.5   154 
 STEEL CREEK PARK        10100    11.9    13.1    91     20.9    19.3   108 
                                                -----                  -----
                Basin wide percent of average    110*                   115 


UPPER BEAR RIVER

 BUG LAKE                 7950    10.4     4.1   254     35.5    24.6   144 
 HAYDEN FORK              9400      .4      .2   200*    31.4    25.8   122 
 KELLEY R.S.              8180     1.0     2.4    42     36.2    23.5   154 
 LILY LAKE                9050      .1     2.1     5     24.9    20.7   120 
 MONTE CRISTO             8960    18.4    12.6   146     40.8    33.3   123 
 SALT RIVER SUMMIT        7600      .0      .0   100*    28.5    21.1   135 
 TRIAL LAKE               9960    20.5    14.1   145     40.7    31.3   130 
                                                -----                  -----
                Basin wide percent of average    143                    132 

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


-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.