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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 SUNDAY: DECEMBER 13 , 1998 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     4.9     5.4    91      7.0     8.3    84 
 COTTONWOOD CREEK         7600     4.1     6.1    67      7.5     8.8    85 
 GRANITE CREEK            6770     3.3     5.0    66      5.2     8.7    60 
 GRASSY LAKE              7265     9.2     9.7    95     11.4    13.5    84 
 GROS VENTRE SUMMIT       8775     4.7     5.0    94      5.4     6.0    90 
 LEWIS LAKE DIVIDE        7860     9.3     9.5    98     11.9    13.7    87 
 PHILLIPS BENCH           8200     7.0     7.8    90      7.8    10.6    74 
 SALT RIVER SUMMIT        7600     2.1     3.2    66      4.7     6.3    75 
 SNAKE RIVER STATION      6920     4.7     5.3    89      7.1     9.4    76 
 SPRING CREEK DIVIDE      9000     5.6     8.4    67      6.8     9.7    70 
 THUMB DIVIDE             7980     7.7     5.1   151      8.3     7.7   108 
 TOGWOTEE PASS            9580     8.0     8.2    98      8.5    10.2    83 
 TWO OCEAN PLATEAU        9360    11.8     9.9   119     10.9    11.5    95 
 WILLOW CREEK             8450     6.7     9.0    74     12.1    11.6   104 
                                                -----                  -----
                Basin wide percent of average     91                     84 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275      -M     8.8      *      -M     6.4      *
 BLACK BEAR               7950    15.0    11.2   134     15.0    12.7   118 
 CANYON                   7940     5.0     3.8   132      5.9     5.3   111 
 FISHER CREEK             9100    12.9    11.5   112     12.0    11.8   102 
 MADISON PLATEAU          7750      -M     7.3      *    11.3     8.8   128 
 NORTHEAST ENTRANCE       7350     2.6     2.8    93      4.5     4.5   100 
 PARKER PEAK              9400     7.3     8.7    84       -M     6.0      *
 SYLVAN LAKE              8420     9.0     8.5   106     11.2     7.8   144 
 THUMB DIVIDE             7980     7.7     5.1   151      8.3     7.7   108 
 TWO OCEAN PLATEAU        9360    11.8     9.9   119     10.9    11.5    95 
 WHISKEY CREEK            6800     6.8     5.0   136      8.9     7.2   124 
 WHITE MILL               8700     7.7     8.2    94      7.7     9.6    80 
 WOLVERINE                7650     3.9     3.5   111      4.5     5.0    90 
                                                -----                  -----
                Basin wide percent of average    115                    109 


WIND RIVER

 BURROUGHS CREEK          8750     3.9     5.2    75      4.5     6.3    71 
 COLD SPRINGS             9630     4.1     3.5   117      5.6     4.6   122 
 DEER PARK                9700     4.9      -M      *     7.1      -M      *
 HOBBS PARK              10100     7.1     6.1   116      7.4     5.4   137 
 LITTLE WARM              9620     4.4     4.1   107      5.5     5.3   104 
 SOUTH PASS               9040     4.6     6.6    70      6.5     6.3   103 
 ST. LAWRENCE ALT         8620     3.4     2.5   136      6.0     4.3   140 
 TOGWOTEE PASS            9580     8.0     8.2    98      8.5    10.2    83 
 TOWNSEND CREEK           8700     3.7     3.5   106      6.5     4.6   141 
                                                -----                  -----
                Basin wide percent of average     99                    107 


BIGHORN BASIN

 BALD MTN.                9375     5.5     7.7    71      5.7     6.5    88 
 BEAR TRAP MEADOW         7900     2.3     2.7    85      5.6     3.6   156 
 BLACKWATER               9780    11.3     7.4   153     10.2     6.8   150 
 BONE SPRINGS DIV         9350     4.3     6.2    69      4.9     5.4    91 
 EVENING STAR             9200    10.3    10.5    98     10.8     8.3   130 
 GRAVE SPRINGS            8550     2.4     3.6    67      5.6     4.2   133 
 KIRWIN                   9550     4.7     4.2   112      5.3     4.3   123 
 MARQUETTE                8760     4.8     3.1   155      5.8     4.0   145 
 MIDDLE POWDER            7760     2.3     4.5    51      8.4     4.8   175 
 OWL CREEK                8975     2.9     1.4   207      3.8     2.3   165 
 POWDER RIVER PASS        9480     2.5     4.1    61      4.5     4.5   100 
 SHELL CREEK              9580     4.9     5.9    83      4.5     5.0    90 
 SYLVAN LAKE              8420     9.0     8.5   106     11.2     7.8   144 
 SYLVAN ROAD              8120     5.2     4.4   118      6.6     6.3   105 
 TIMBER CREEK             7950     2.8     1.7   165      4.4     2.8   157 
 YOUNTS PEAK              8350     5.9     6.9    86      5.5     6.2    89 
                                                -----                  -----
                Basin wide percent of average     98                    124 


SHOSHONE RIVER

 BLACKWATER               9780    11.3     7.4   153     10.2     6.8   150 
 EVENING STAR             9200    10.3    10.5    98     10.8     8.3   130 
 KIRWIN                   9550     4.7     4.2   112      5.3     4.3   123 
 MARQUETTE                8760     4.8     3.1   155      5.8     4.0   145 
 SYLVAN LAKE              8420     9.0     8.5   106     11.2     7.8   144 
 SYLVAN ROAD              8120     5.2     4.4   118      6.6     6.3   105 
 YOUNTS PEAK              8350     5.9     6.9    86      5.5     6.2    89 
                                                -----                  -----
                Basin wide percent of average    114                    127 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     2.3     2.7    85      5.6     3.6   156 
 BIG GOOSE                7990      -M      -M      *      -M      -M      *
 BONE SPRINGS DIV         9350     4.3     6.2    69      4.9     5.4    91 
 BURGESS JUNCTION         7880     2.3     4.4    52      4.6     4.5   102 
 CLOUD PEAK RESERVOIR     9860     4.3     4.3   100      5.8     5.0   116 
 DOME LAKE                8880      -M     4.9      *      -M     5.6      *
 GRAVE SPRINGS            8550     2.4     3.6    67      5.6     4.2   133 
 HANSEN SAWMILL           8760     2.1     2.6    81      3.7     3.3   112 
 MIDDLE POWDER            7760     2.3     4.5    51      8.4     4.8   175 
 POWDER RIVER PASS        9480     2.5     4.1    61      4.5     4.5   100 
 SUCKER CREEK             8880     3.6     3.8    95      5.5     5.1   108 
 TIE CREEK                6870      .7      -M      *     3.7     4.3    86 
                                                -----                  -----
                Basin wide percent of average     72                    117 


BELLE FOURCHE

 BLIND PARK               6890     1.2     4.2    29      7.6     3.8   200 
 NORTH RAPID CREEK        6130     1.3      -M      *     8.1      -M      *
 WARREN PEAK              6520     1.6     4.2    38      7.6     3.2   238 
                                                -----                  -----
                Basin wide percent of average     33                    217 


UPPER N. PLATTE RIVER

 COLUMBINE                9400     3.3     6.8    49      6.2     8.0    78 
 DIVIDE PEAK              8800     5.5     7.3    75     11.7     8.7   134 
 ELK RIVER                8700     2.0     5.5    36      8.2     6.5   126 
 JOE WRIGHT              10120     6.4     8.2    78      9.5     9.3   102 
 NORTH FRENCH CREEK      10100     8.8     8.7   101     11.5     8.0   144 
 OLD BATTLE              10000     8.5    11.4    75     12.5    10.9   115 
 SOUTH BRUSH CREEK        8400     2.9     3.4    85      9.5     7.0   136 
 TOWER                   10500    11.6    17.0    68     12.5    12.5   100 
 WEBBER SPRINGS           9200     4.8     9.1    53      9.2    10.3    89 
 WILLOW CREEK PASS        9540     4.0     4.2    95      5.0     4.8   104 
                                                -----                  -----
                Basin wide percent of average     71                    111 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240     4.5     9.2    49      6.8     6.6   103 
 CASPER MTN.              7900     3.0     6.1    49      8.9     5.9   151 
 DEADMAN HILL            10220     5.7     6.0    95      6.7     6.0   112 
 DEER PARK                9700     4.9      -M      *     7.1      -M      *
 LAPRELE CREEK            8320      .5     3.6    14      6.6     4.0   165 
 RENO HILL                8400     4.6     4.8    96      9.1     7.8   117 
 ROACH                    9700     3.6     5.9    61      6.8     7.7    88 
 SAND LAKE               10080     9.9    11.5    86     11.7     7.3   160 
 SOUTH PASS               9040     4.6     6.6    70      6.5     6.3   103 
 WINDY PEAK               7840      .9     2.6    35      6.9     3.2   216 
                                                -----                  -----
                Basin wide percent of average     66                    128 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M     3.5      *     7.5     5.7   132 
 DIVIDE PEAK              8800     5.5     7.3    75     11.7     8.7   134 
 OLD BATTLE              10000     8.5    11.4    75     12.5    10.9   115 
 SANDSTONE RS             8150     2.2     4.4    50      8.3     6.7   124 
 WHISKEY PARK             8950     5.0     9.4    53     10.2     8.4   121 
                                                -----                  -----
                Basin wide percent of average     65                    124 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100     4.3     4.2   102      4.2     6.1    69 
 BLIND BULL SUM           8650     6.2     9.7    64      6.7     8.1    83 
 EAST RIM DIVIDE          7930     2.5     3.7    68      3.5     5.6    63 
 ELKHART PARK G.S.        9400     3.4     4.2    81      4.3     6.0    72 
 GROS VENTRE SUMMIT       8775     4.7     5.0    94      5.4     6.0    90 
 KENDALL R.S.             7740     3.0     3.9    77      3.7     5.8    64 
 LOOMIS PARK              8240     3.2     4.8    67      4.6     7.0    66 
 NEW FORK LAKE            8340     2.4     3.1    77      3.1     5.4    57 
 SNIDER BASIN             8250     2.3     4.1    56      3.5     5.6    63 
 SPRING CREEK DIVIDE      9000     5.6     8.4    67      6.8     9.7    70 
 TRIPLE PEAK              8500     5.3     7.6    70      7.1    11.6    61 
                                                -----                  -----
                Basin wide percent of average     73                     69 


LOWER GREEN RIVER

 HAMS FORK                7840     1.4     2.8    50      3.1     5.0    62 
 HEWINTA                  9500     2.1     2.9    72      5.0     5.2    96 
 HICKERSON PARK           9150     2.0     2.0   100      4.7     4.1   115 
 HOLE-IN-ROCK             9150     2.0     1.8   111      5.2     4.1   127 
 INDIAN CREEK             9425     5.6     8.3    67      5.9     9.4    63 
 KELLEY R.S.              8180     2.7     4.8    56      4.4     7.0    63 
 STEEL CREEK PARK        10100     3.3     5.8    57      6.2     5.5   113 
                                                -----                  -----
                Basin wide percent of average     67                     86 


UPPER BEAR RIVER

 BUG LAKE                 7950     3.0     6.6    45      5.0     7.7    65 
 HAYDEN FORK              9400     3.4     4.9    69      6.6     6.8    97 
 KELLEY R.S.              8180     2.7     4.8    56      4.4     7.0    63 
 LILY LAKE                9050     3.6     4.5    80      6.8     5.9   115 
 MONTE CRISTO             8960     5.4     8.4    64      8.4     9.6    88 
 SALT RIVER SUMMIT        7600     2.1     3.2    66      4.7     6.3    75 
 TRIAL LAKE               9960     4.0     7.7    52      5.6     8.7    64 
                                                -----                  -----
                Basin wide percent of average     60                     80 

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


-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.