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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 26 , 1999 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     3.8     1.7   218*    30.9    27.4   113 
 COTTONWOOD CREEK         7600    13.7     5.0   275     36.8    30.7   121 
 GRANITE CREEK            6770     5.8     3.8   157     27.9    29.4    96 
 GRASSY LAKE              7265    29.7    17.4   171     49.9    45.5   110 
 GROS VENTRE SUMMIT       8775    11.5     3.7   320     20.4    19.9   104 
 LEWIS LAKE DIVIDE        7860    33.2    23.4   143     46.3    46.3   100 
 PHILLIPS BENCH           8200    25.9    20.4   127     37.4    36.5   103 
 SALT RIVER SUMMIT        7600      .9      .0      *    23.2    21.0   111 
 SNAKE RIVER STATION      6920      .0     4.1    22     30.4    32.0    95 
 SPRING CREEK DIVIDE      9000    31.7    21.5   148     36.3    33.3   110 
 THUMB DIVIDE             7980      -M     4.0      *      -M    25.7      *
 TOGWOTEE PASS            9580      -M    24.5      *    35.8    34.8   104 
 TWO OCEAN PLATEAU        9360    37.9    23.9   159     37.3    37.8    99 
 WILLOW CREEK             8450    23.7    22.4   106     49.0    39.3   125 
                                                -----                  -----
                Basin wide percent of average    148                    107 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    24.7    21.4   116     28.4    24.4   117 
 BLACK BEAR               7950    54.8    30.9   178     60.3    49.9   121 
 CANYON                   7940     6.5     3.3   197     22.9    18.4   125 
 FISHER CREEK             9100    40.8    33.8   121     44.2    46.2    96 
 MADISON PLATEAU          7750      -M    11.6      *    39.3    32.8   121 
 NORTHEAST ENTRANCE       7350      .2     1.2    10     18.0    16.0   113 
 PARKER PEAK              9400    20.9    20.2   104       -M    20.9      *
 SYLVAN LAKE              8420    24.4    16.4   149     36.3    25.7   142 
 THUMB DIVIDE             7980      -M     4.0      *      -M    25.7      *
 TWO OCEAN PLATEAU        9360    37.9    23.9   159     37.3    37.8    99 
 WHISKEY CREEK            6800    11.6     4.3   277     30.4    27.2   113 
 WHITE MILL               8700    26.9    21.4   126     30.4    35.9    85 
 WOLVERINE                7650      .0     1.2     0*    15.0    17.7    86 
                                                -----                  -----
                Basin wide percent of average    140                    110 


WIND RIVER

 BURROUGHS CREEK          8750    13.4     3.8   351     23.7    22.0   108 
 COLD SPRINGS             9630    12.5     1.2  1042     24.9    15.6   160 
 DEER PARK                9700    23.7      -M      *    34.3      -M      *
 HOBBS PARK              10100    24.9    12.0   208     29.2    20.4   144 
 LITTLE WARM              9620    13.0     2.4   542     25.2    18.9   135 
 SOUTH PASS               9040    18.9    12.4   153     31.4    23.4   134 
 ST. LAWRENCE ALT         8620     4.3     1.0   421     21.9    14.5   153 
 TOGWOTEE PASS            9580      -M    24.5      *    35.8    34.8   104 
 TOWNSEND CREEK           8700    11.4     3.4   333     26.7    18.2   148 
                                                -----                  -----
                Basin wide percent of average    272                    131 


BIGHORN BASIN

 BALD MTN.                9375    23.5    20.7   115     26.2    24.5   107 
 BEAR TRAP MEADOW         7900      .7      .5   140*    18.4    13.4   139 
 BLACKWATER               9780    31.9    21.0   152     31.4    23.4   134 
 BONE SPRINGS DIV         9350    20.4    11.2   183     26.4    21.5   123 
 EVENING STAR             9200    32.8    27.2   121     41.2    29.2   141 
 GRAVE SPRINGS            8550     3.5     5.3    68     19.0    15.5   123 
 KIRWIN                   9550    14.2     7.0   206     21.7    15.7   138 
 MARQUETTE                8760    15.7     5.5   291     22.0    16.7   133 
 MIDDLE POWDER            7760    10.4     6.6   157     22.9    17.7   131 
 OWL CREEK                8975     5.3      .5  1041*    15.7    10.2   154 
 POWDER RIVER PASS        9480     7.8     3.2   252     23.0    17.7   131 
 SHELL CREEK              9580    17.0    13.4   128     21.5    19.2   113 
 SYLVAN LAKE              8420    24.4    16.4   149     36.3    25.7   142 
 SYLVAN ROAD              8120     1.0     2.2    48     22.7    21.2   107 
 TIMBER CREEK             7950     6.0     1.2   537     18.4    13.1   141 
 YOUNTS PEAK              8350    17.5    11.5   153     22.9    21.9   106 
                                                -----                  -----
                Basin wide percent of average    152                    128 


SHOSHONE RIVER

 BLACKWATER               9780    31.9    21.0   152     31.4    23.4   134 
 EVENING STAR             9200    32.8    27.2   121     41.2    29.2   141 
 KIRWIN                   9550    14.2     7.0   206     21.7    15.7   138 
 MARQUETTE                8760    15.7     5.5   291     22.0    16.7   133 
 SYLVAN LAKE              8420    24.4    16.4   149     36.3    25.7   142 
 SYLVAN ROAD              8120     1.0     2.2    48     22.7    21.2   107 
 YOUNTS PEAK              8350    17.5    11.5   153     22.9    21.9   106 
                                                -----                  -----
                Basin wide percent of average    152                    129 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900      .7      .5   140*    18.4    13.4   139 
 BIG GOOSE                7990     5.3      -M      *    19.9      -M      *
 BONE SPRINGS DIV         9350    20.4    11.2   183     26.4    21.5   123 
 BURGESS JUNCTION         7880     7.8     5.5   142     18.9    17.2   111 
 CLOUD PEAK RESERVOIR     9860    20.2    11.1   182     26.0    20.5   127 
 DOME LAKE                8880      -M     6.3      *    18.9    19.5    97 
 GRAVE SPRINGS            8550     3.5     5.3    68     19.0    15.5   123 
 HANSEN SAWMILL           8760      .0     2.0     0     18.0    12.5   145 
 MIDDLE POWDER            7760    10.4     6.6   157     22.9    17.7   131 
 POWDER RIVER PASS        9480     7.8     3.2   252     23.0    17.7   131 
 SUCKER CREEK             8880    11.4     6.3   180     23.5    19.9   119 
 TIE CREEK                6870      .3      -M      *    19.4    16.4   119 
                                                -----                  -----
                Basin wide percent of average    160                    123 


BELLE FOURCHE

 BLIND PARK               6890      .0     1.7     0     21.4    17.4   123 
 NORTH RAPID CREEK        6130      .0      -M      *    18.2      -M      *
 WARREN PEAK              6520      .0     1.7     0       -M    12.9      *
                                                -----                  -----
                Basin wide percent of average      0                    123*


UPPER N. PLATTE RIVER

 COLUMBINE                9400      .3     6.8     5     30.2    30.4   100 
 DIVIDE PEAK              8800     8.2     6.3   131     32.8    30.2   109 
 ELK RIVER                8700      .0     3.3     0     30.0    24.2   125 
 JOE WRIGHT              10120    19.9    19.5   102     34.4    34.2   101 
 NORTH FRENCH CREEK      10100    38.3    22.5   171     39.8    31.5   127 
 OLD BATTLE              10000    36.5    28.7   128     49.3    38.9   127 
 SOUTH BRUSH CREEK        8400     7.0     2.8   251     27.4    22.9   120 
 TOWER                   10500    47.7    46.8   102     51.0    48.3   106 
 WEBBER SPRINGS           9200    11.5    14.0    82     35.5    33.3   107 
 WILLOW CREEK PASS        9540     8.9     5.3   167     17.2    17.9    97 
                                                -----                  -----
                Basin wide percent of average    115                    112 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    21.2    17.2   124     33.2    26.5   125 
 CASPER MTN.              7900      .6     6.3    10     23.9    22.2   108 
 DEADMAN HILL            10220    16.0    13.2   122     25.0    24.0   105 
 DEER PARK                9700    23.7      -M      *    34.3      -M      *
 LAPRELE CREEK            8320      .0     1.9     0     21.9    17.5   126 
 RENO HILL                8400     3.2     5.0    63     27.2    24.0   113 
 ROACH                    9700      -M    10.5      *    26.9    29.4    92 
 SAND LAKE               10080    46.3    28.5   163     40.8    27.9   147 
 SOUTH PASS               9040    18.9    12.4   153     31.4    23.4   134 
 WINDY PEAK               7840      .0     1.4     0     19.0    15.1   126 
                                                -----                  -----
                Basin wide percent of average    124                    119 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .2      .0      *    24.0    20.5   118 
 DIVIDE PEAK              8800     8.2     6.3   131     32.8    30.2   109 
 OLD BATTLE              10000    36.5    28.7   128     49.3    38.9   127 
 SANDSTONE RS             8150      .0      .0     0*    27.2    25.5   107 
 WHISKEY PARK             8950      -M    16.7      *    39.7    37.5   106 
                                                -----                  -----
                Basin wide percent of average    125*                   114 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100     7.5     3.5   212     20.0    20.2   100 
 BLIND BULL SUM           8650    32.7    18.7   176     28.7    29.0    99 
 EAST RIM DIVIDE          7930     9.2     9.1   102     18.4    18.9    98 
 ELKHART PARK G.S.        9400     9.5     6.5   147     20.0    19.9   101 
 GROS VENTRE SUMMIT       8775    11.5     3.7   320     20.4    19.9   104 
 KENDALL R.S.             7740      .3      .0      *    20.5    19.4   107 
 LOOMIS PARK              8240      -M     4.0      *    25.4    23.4   109 
 NEW FORK LAKE            8340     2.3     2.3   105     17.4    18.0    97 
 SNIDER BASIN             8250     8.0     3.0   264     23.2    18.9   123 
 SPRING CREEK DIVIDE      9000    31.7    21.5   148     36.3    33.3   110 
 TRIPLE PEAK              8500    20.5    17.0   121     39.4    38.2   104 
                                                -----                  -----
                Basin wide percent of average    157                    105 


LOWER GREEN RIVER

 HAMS FORK                7840      .2      .0      *    18.5    16.7   112 
 HEWINTA                  9500     3.7      .0      *    20.5    18.5   111 
 HICKERSON PARK           9150      .0      .3     0*    16.2    14.7   110 
 HOLE-IN-ROCK             9150      .0      .3     0*    16.0    14.7   109 
 INDIAN CREEK             9425    31.4    20.2   157     35.0    31.7   111 
 KELLEY R.S.              8180     6.3     3.7   175     24.9    23.4   106 
 STEEL CREEK PARK        10100    19.9    13.7   146     24.9    19.2   130 
                                                -----                  -----
                Basin wide percent of average    152*                   113 


UPPER BEAR RIVER

 BUG LAKE                 7950    12.4     5.1   242     29.7    24.5   122 
 HAYDEN FORK              9400     4.5      .3  1467*    29.2    25.7   115 
 KELLEY R.S.              8180     6.3     3.7   175     24.9    23.4   106 
 LILY LAKE                9050     3.3     2.8   123     25.5    20.7   124 
 MONTE CRISTO             8960    31.9    14.1   226     38.5    33.2   117 
 SALT RIVER SUMMIT        7600      .9      .0      *    23.2    21.0   111 
 TRIAL LAKE               9960    21.4    15.2   141     31.9    31.2   103 
                                                -----                  -----
                Basin wide percent of average    194                    114 

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


-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.