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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 SATURDAY: DECEMBER 12 , 1998 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     4.8     5.3    91      6.9     8.2    84 
 COTTONWOOD CREEK         7600     4.1     5.9    69      7.5     8.7    86 
 GRANITE CREEK            6770     3.2     4.9    65      5.2     8.6    60 
 GRASSY LAKE              7265     9.3     9.5    98     11.3    13.2    86 
 GROS VENTRE SUMMIT       8775     4.6     4.9    94      5.4     5.9    92 
 LEWIS LAKE DIVIDE        7860     9.3     9.3   100     11.8    13.4    88 
 PHILLIPS BENCH           8200     6.9     7.6    91      7.7    10.4    74 
 SALT RIVER SUMMIT        7600     2.1     3.1    68      4.7     6.2    76 
 SNAKE RIVER STATION      6920     4.7     5.2    90      7.1     9.3    76 
 SPRING CREEK DIVIDE      9000     5.6     8.2    68      6.8     9.6    71 
 THUMB DIVIDE             7980     7.7     4.9   157      8.2     7.6   108 
 TOGWOTEE PASS            9580     8.0     8.0   100      8.5    10.0    85 
 TWO OCEAN PLATEAU        9360    11.7     9.7   121     10.8    11.2    96 
 WILLOW CREEK             8450     6.6     8.8    75     12.1    11.3   107 
                                                -----                  -----
                Basin wide percent of average     93                     85 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275     7.5     8.6    87      6.9     6.3   110 
 BLACK BEAR               7950    15.0    11.0   136     14.9    12.5   119 
 CANYON                   7940     4.9     3.7   132      5.8     5.2   112 
 FISHER CREEK             9100    12.9    11.2   115     11.9    11.6   103 
 MADISON PLATEAU          7750      -M     7.1      *    11.3     8.6   131 
 NORTHEAST ENTRANCE       7350     2.7     2.7   100      4.4     4.4   100 
 PARKER PEAK              9400     7.2     8.6    84       -M     5.9      *
 SYLVAN LAKE              8420     9.0     8.4   107     11.1     7.7   144 
 THUMB DIVIDE             7980     7.7     4.9   157      8.2     7.6   108 
 TWO OCEAN PLATEAU        9360    11.7     9.7   121     10.8    11.2    96 
 WHISKEY CREEK            6800     6.9     4.9   141      8.8     7.1   124 
 WHITE MILL               8700     7.7     8.0    96      7.7     9.4    82 
 WOLVERINE                7650     3.9     3.4   115      4.6     4.9    94 
                                                -----                  -----
                Basin wide percent of average    114                    110 


WIND RIVER

 BURROUGHS CREEK          8750     3.9     5.0    78      4.5     6.2    73 
 COLD SPRINGS             9630     4.1     3.4   121      5.7     4.5   127 
 DEER PARK                9700     4.9      -M      *     7.1      -M      *
 HOBBS PARK              10100     7.1     6.0   118      7.5     5.3   142 
 LITTLE WARM              9620     4.4     4.0   110      5.5     5.2   106 
 SOUTH PASS               9040     4.6     6.5    71      6.5     6.3   103 
 ST. LAWRENCE ALT         8620     3.4     2.5   136      6.0     4.2   143 
 TOGWOTEE PASS            9580     8.0     8.0   100      8.5    10.0    85 
 TOWNSEND CREEK           8700     3.8     3.4   112      6.6     4.6   143 
                                                -----                  -----
                Basin wide percent of average    101                    110 


BIGHORN BASIN

 BALD MTN.                9375     5.5     7.6    72      5.6     6.4    88 
 BEAR TRAP MEADOW         7900     2.3     2.6    88      5.6     3.5   160 
 BLACKWATER               9780    11.2     7.3   153     10.1     6.7   151 
 BONE SPRINGS DIV         9350     4.2     6.1    69      4.8     5.3    91 
 EVENING STAR             9200    10.3    10.3   100     10.7     8.2   130 
 GRAVE SPRINGS            8550     2.4     3.5    69      5.6     4.1   137 
 KIRWIN                   9550     4.7     4.1   115      5.4     4.2   129 
 MARQUETTE                8760     4.8     3.0   160      5.7     3.9   146 
 MIDDLE POWDER            7760     2.3     4.5    51      8.5     4.8   177 
 OWL CREEK                8975     2.8     1.3   215      3.8     2.3   165 
 POWDER RIVER PASS        9480     2.5     4.0    62      4.5     4.4   102 
 SHELL CREEK              9580     4.8     5.8    83      4.5     4.9    92 
 SYLVAN LAKE              8420     9.0     8.4   107     11.1     7.7   144 
 SYLVAN ROAD              8120     5.1     4.4   116      6.6     6.2   106 
 TIMBER CREEK             7950     2.8     1.7   165      4.4     2.8   157 
 YOUNTS PEAK              8350     5.9     6.7    88      5.5     6.1    90 
                                                -----                  -----
                Basin wide percent of average     99                    126 


SHOSHONE RIVER

 BLACKWATER               9780    11.2     7.3   153     10.1     6.7   151 
 EVENING STAR             9200    10.3    10.3   100     10.7     8.2   130 
 KIRWIN                   9550     4.7     4.1   115      5.4     4.2   129 
 MARQUETTE                8760     4.8     3.0   160      5.7     3.9   146 
 SYLVAN LAKE              8420     9.0     8.4   107     11.1     7.7   144 
 SYLVAN ROAD              8120     5.1     4.4   116      6.6     6.2   106 
 YOUNTS PEAK              8350     5.9     6.7    88      5.5     6.1    90 
                                                -----                  -----
                Basin wide percent of average    115                    128 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     2.3     2.6    88      5.6     3.5   160 
 BIG GOOSE                7990     2.1      -M      *     5.2      -M      *
 BONE SPRINGS DIV         9350     4.2     6.1    69      4.8     5.3    91 
 BURGESS JUNCTION         7880     2.2     4.3    51      4.6     4.4   105 
 CLOUD PEAK RESERVOIR     9860     4.2     4.3    98      5.6     4.9   114 
 DOME LAKE                8880     2.6     4.9    53      4.2     5.5    76 
 GRAVE SPRINGS            8550     2.4     3.5    69      5.6     4.1   137 
 HANSEN SAWMILL           8760     2.1     2.6    81      3.7     3.3   112 
 MIDDLE POWDER            7760     2.3     4.5    51      8.5     4.8   177 
 POWDER RIVER PASS        9480     2.5     4.0    62      4.5     4.4   102 
 SUCKER CREEK             8880     3.6     3.7    97      5.4     5.0   108 
 TIE CREEK                6870      .7      -M      *     3.7     4.2    88 
                                                -----                  -----
                Basin wide percent of average     70                    114 


BELLE FOURCHE

 BLIND PARK               6890     1.2     4.1    29      7.6     3.8   200 
 NORTH RAPID CREEK        6130     1.3      -M      *     8.0      -M      *
 WARREN PEAK              6520     1.6     4.1    39      7.6     3.1   245 
                                                -----                  -----
                Basin wide percent of average     34                    220 


UPPER N. PLATTE RIVER

 COLUMBINE                9400     3.3     6.7    49      6.2     7.8    79 
 DIVIDE PEAK              8800     5.5     7.2    76     11.6     8.5   136 
 ELK RIVER                8700     1.8     5.3    34      8.2     6.4   128 
 JOE WRIGHT              10120     6.4     8.1    79      9.5     9.1   104 
 NORTH FRENCH CREEK      10100     8.8     8.5   104     11.5     7.8   147 
 OLD BATTLE              10000     8.5    11.2    76     12.5    10.7   117 
 SOUTH BRUSH CREEK        8400     3.0     3.4    88      9.5     6.9   138 
 TOWER                   10500    11.8    16.8    70     12.6    12.3   102 
 WEBBER SPRINGS           9200     4.8     9.0    53      9.2    10.2    90 
 WILLOW CREEK PASS        9540     3.9     4.2    93      5.0     4.7   106 
                                                -----                  -----
                Basin wide percent of average     72                    114 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240     4.6     9.0    51      6.8     6.5   105 
 CASPER MTN.              7900     2.9     6.0    48      8.9     5.9   151 
 DEADMAN HILL            10220     5.8     5.8   100      6.7     5.9   114 
 DEER PARK                9700     4.9      -M      *     7.1      -M      *
 LAPRELE CREEK            8320      .5     3.5    14      6.6     3.9   169 
 RENO HILL                8400     4.5     4.8    94      9.0     7.7   117 
 ROACH                    9700     3.7     5.8    64      6.8     7.6    89 
 SAND LAKE               10080    10.1    11.3    89     11.7     7.2   162 
 SOUTH PASS               9040     4.6     6.5    71      6.5     6.3   103 
 WINDY PEAK               7840      .8     2.6    31      6.8     3.2   212 
                                                -----                  -----
                Basin wide percent of average     68                    129 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M     3.4      *     7.5     5.6   134 
 DIVIDE PEAK              8800     5.5     7.2    76     11.6     8.5   136 
 OLD BATTLE              10000     8.5    11.2    76     12.5    10.7   117 
 SANDSTONE RS             8150     2.2     4.3    51      8.3     6.5   128 
 WHISKEY PARK             8950     4.8     9.2    52     10.1     8.2   123 
                                                -----                  -----
                Basin wide percent of average     66                    127 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100     4.3     4.1   105      4.2     5.9    71 
 BLIND BULL SUM           8650     6.2     9.5    65      6.7     7.9    85 
 EAST RIM DIVIDE          7930     2.5     3.5    71      3.5     5.5    64 
 ELKHART PARK G.S.        9400     3.4     4.1    83      4.3     5.9    73 
 GROS VENTRE SUMMIT       8775     4.6     4.9    94      5.4     5.9    92 
 KENDALL R.S.             7740     3.0     3.8    79      3.7     5.7    65 
 LOOMIS PARK              8240     3.2     4.7    68      4.6     6.9    67 
 NEW FORK LAKE            8340     2.5     3.0    83      3.1     5.3    58 
 SNIDER BASIN             8250     2.2     4.0    55      3.5     5.5    64 
 SPRING CREEK DIVIDE      9000     5.6     8.2    68      6.8     9.6    71 
 TRIPLE PEAK              8500     5.3     7.4    72      7.1    11.3    63 
                                                -----                  -----
                Basin wide percent of average     75                     70 


LOWER GREEN RIVER

 HAMS FORK                7840     1.4     2.7    52      3.1     4.9    63 
 HEWINTA                  9500     2.1     2.9    72      4.9     5.1    96 
 HICKERSON PARK           9150     2.0     2.0   100      4.8     4.0   120 
 HOLE-IN-ROCK             9150     2.0     1.8   111      5.2     4.0   130 
 INDIAN CREEK             9425     5.6     8.1    69      5.8     9.2    63 
 KELLEY R.S.              8180     2.7     4.6    59      4.4     6.9    64 
 STEEL CREEK PARK        10100     3.3     5.7    58      6.2     5.4   115 
                                                -----                  -----
                Basin wide percent of average     69                     87 


UPPER BEAR RIVER

 BUG LAKE                 7950     3.1     6.5    48      5.0     7.6    66 
 HAYDEN FORK              9400     3.4     4.8    71      6.8     6.7   101 
 KELLEY R.S.              8180     2.7     4.6    59      4.4     6.9    64 
 LILY LAKE                9050     3.5     4.4    80      6.8     5.8   117 
 MONTE CRISTO             8960     5.5     8.2    67      8.4     9.5    88 
 SALT RIVER SUMMIT        7600     2.1     3.1    68      4.7     6.2    76 
 TRIAL LAKE               9960     4.0     7.6    53      5.7     8.5    67 
                                                -----                  -----
                Basin wide percent of average     62                     82 

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


-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.