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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: APRIL 11 , 1999 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    24.0    16.7   145     28.0    23.7   119 
 COTTONWOOD CREEK         7600    26.5    23.7   112     29.4    26.7   111 
 GRANITE CREEK            6770    22.4    18.2   124     23.7    25.0    95 
 GRASSY LAKE              7265    44.3    37.4   119     42.3    39.4   108 
 GROS VENTRE SUMMIT       8775    16.9    16.0   106     16.7    17.0    98 
 LEWIS LAKE DIVIDE        7860    41.8    36.5   115     41.2    40.2   103 
 PHILLIPS BENCH           8200      -M    30.5      *      -M    31.7      *
 SALT RIVER SUMMIT        7600    16.9    14.1   120     19.2    18.0   107 
 SNAKE RIVER STATION      6920    23.0    18.7   123     26.5    27.7    96 
 SPRING CREEK DIVIDE      9000    32.3    29.2   111     29.4    29.2   102 
 THUMB DIVIDE             7980    24.4    17.4   141     23.4    22.2   106 
 TOGWOTEE PASS            9580      -M    26.5      *    30.4    30.0   102 
 TWO OCEAN PLATEAU        9360    37.8    26.7   142     31.9    32.7    98 
 WILLOW CREEK             8450    34.9    31.4   112     39.0    34.2   115 
                                                -----                  -----
                Basin wide percent of average    121                    105 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    26.9    25.2   108     24.0    19.4   125 
 BLACK BEAR               7950    51.8    39.8   131       -M    43.2      *
 CANYON                   7940    18.7    13.5   140     20.2    15.1   134 
 FISHER CREEK             9100    41.3    37.4   111     37.8    38.9    98 
 MADISON PLATEAU          7750      -M    25.4      *    33.7    27.9   121 
 NORTHEAST ENTRANCE       7350    13.1     9.1   144     14.5    12.6   116 
 PARKER PEAK              9400    25.0    22.9   110       -M    16.7      *
 SYLVAN LAKE              8420    27.5    23.5   118     29.2    20.4   143 
 THUMB DIVIDE             7980    24.4    17.4   141     23.4    22.2   106 
 TWO OCEAN PLATEAU        9360    37.8    26.7   142     31.9    32.7    98 
 WHISKEY CREEK            6800      -M    18.0      *      -M    23.2      *
 WHITE MILL               8700    28.9    25.7   113     25.5    30.2    85 
 WOLVERINE                7650    13.0    11.9   111     13.0    13.7    95 
                                                -----                  -----
                Basin wide percent of average    122                    109 


WIND RIVER

 BURROUGHS CREEK          8750    17.7    15.4   116     19.2    17.7   108 
 COLD SPRINGS             9630    10.2     8.7   118     13.1    11.5   114 
 DEER PARK                9700    18.4      -M      *    23.9      -M      *
 HOBBS PARK              10100    19.2    16.2   119     17.9    15.4   117 
 LITTLE WARM              9620    15.7    13.0   121     17.4    14.5   121 
 SOUTH PASS               9040      -M    17.4      *      -M    18.4      *
 ST. LAWRENCE ALT         8620     7.6     7.3   105     11.5    11.0   105 
 TOGWOTEE PASS            9580      -M    26.5      *    30.4    30.0   102 
 TOWNSEND CREEK           8700    11.1    10.4   108     14.5    13.6   107 
                                                -----                  -----
                Basin wide percent of average    116                    109 


BIGHORN BASIN

 BALD MTN.                9375    21.2    21.9    97     19.4    18.7   104 
 BEAR TRAP MEADOW         7900     4.5     7.0    65     10.4     9.0   115 
 BLACKWATER               9780    31.7    24.2   132     26.4    19.0   139 
 BONE SPRINGS DIV         9350    19.2    17.7   109     18.0    16.2   112 
 EVENING STAR             9200    34.4    28.7   120     35.8    23.9   151 
 GRAVE SPRINGS            8550    10.2    10.5    99     13.2    10.6   125 
 KIRWIN                   9550    13.6    10.9   126     15.2    11.7   130 
 MARQUETTE                8760    10.0     8.6   116     10.5    11.0    97 
 MIDDLE POWDER            7760      -M    13.4      *    18.9    13.0   146 
 OWL CREEK                8975     7.0     4.8   147      7.3     7.0   105 
 POWDER RIVER PASS        9480    13.1    11.5   114     15.7    12.6   125 
 SHELL CREEK              9580    17.5    16.0   111     16.2    14.1   115 
 SYLVAN LAKE              8420    27.5    23.5   118     29.2    20.4   143 
 SYLVAN ROAD              8120      -M    11.4      *      -M    17.0      *
 TIMBER CREEK             7950     6.0     6.6    91      8.0     8.1    98 
 YOUNTS PEAK              8350    22.2    18.2   123     19.7    17.7   112 
                                                -----                  -----
                Basin wide percent of average    114                    124 


SHOSHONE RIVER

 BLACKWATER               9780    31.7    24.2   132     26.4    19.0   139 
 EVENING STAR             9200    34.4    28.7   120     35.8    23.9   151 
 KIRWIN                   9550    13.6    10.9   126     15.2    11.7   130 
 MARQUETTE                8760    10.0     8.6   116     10.5    11.0    97 
 SYLVAN LAKE              8420    27.5    23.5   118     29.2    20.4   143 
 SYLVAN ROAD              8120      -M    11.4      *      -M    17.0      *
 YOUNTS PEAK              8350    22.2    18.2   123     19.7    17.7   112 
                                                -----                  -----
                Basin wide percent of average    123                    133 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     4.5     7.0    65     10.4     9.0   115 
 BIG GOOSE                7990     8.5      -M      *    12.1      -M      *
 BONE SPRINGS DIV         9350    19.2    17.7   109     18.0    16.2   112 
 BURGESS JUNCTION         7880    11.0    12.6    87     12.5    12.5   100 
 CLOUD PEAK RESERVOIR     9860    17.9    16.4   110     16.0    14.6   110 
 DOME LAKE                8880      -M    14.6      *    12.6    14.4    89 
 GRAVE SPRINGS            8550    10.2    10.5    99     13.2    10.6   125 
 HANSEN SAWMILL           8760     4.8     7.5    65      9.4     8.9   106 
 MIDDLE POWDER            7760      -M    13.4      *    18.9    13.0   146 
 POWDER RIVER PASS        9480    13.1    11.5   114     15.7    12.6   125 
 SUCKER CREEK             8880    12.2    13.0    94     14.9    14.4   104 
 TIE CREEK                6870      -M      -M      *      -M    12.0      *
                                                -----                  -----
                Basin wide percent of average     97                    113 


BELLE FOURCHE

 BLIND PARK               6890     6.8    11.5    60     16.9    11.4   150 
 NORTH RAPID CREEK        6130     6.8      -M      *    14.5      -M      *
 WARREN PEAK              6520    12.5    11.5   108     11.7     8.9   133 
                                                -----                  -----
                Basin wide percent of average     84                    143 


UPPER N. PLATTE RIVER

 COLUMBINE                9400    19.4    24.7    79     22.7    25.9    88 
 DIVIDE PEAK              8800    21.5    21.7   100     26.4    24.4   108 
 ELK RIVER                8700    17.4    20.4    86     23.2    20.2   115 
 JOE WRIGHT              10120    21.4    23.7    90     27.4    26.9   103 
 NORTH FRENCH CREEK      10100    33.7    27.5   123     31.9    25.2   128 
 OLD BATTLE              10000    31.9    34.8    92     38.4    32.2   120 
 SOUTH BRUSH CREEK        8400    11.6    13.2    88     20.7    17.9   116 
 TOWER                   10500    47.3    48.0    99     40.0    38.7   104 
 WEBBER SPRINGS           9200    20.2    28.7    71     27.9    27.2   103 
 WILLOW CREEK PASS        9540    12.6    13.1    97     12.2    13.6    90 
                                                -----                  -----
                Basin wide percent of average     93                    108 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    16.0    28.4    57     23.4    20.9   112 
 CASPER MTN.              7900    13.2    18.4    72     18.2    15.7   116 
 DEADMAN HILL            10220    16.7    17.5    95     17.9    18.2    99 
 DEER PARK                9700    18.4      -M      *    23.9      -M      *
 LAPRELE CREEK            8320      -M    10.2      *    16.0    12.9   125 
 RENO HILL                8400    16.0    15.2   105     20.4    20.4   100 
 ROACH                    9700    15.6    18.0    87     20.7    22.7    91 
 SAND LAKE               10080    37.8    35.0   108     30.4    21.9   139 
 SOUTH PASS               9040      -M    17.4      *      -M    18.4      *
 WINDY PEAK               7840     7.5     9.2    82     14.0    10.5   133 
                                                -----                  -----
                Basin wide percent of average     87                    113 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    12.7    11.1   115     18.9    16.4   116 
 DIVIDE PEAK              8800    21.5    21.7   100     26.4    24.4   108 
 OLD BATTLE              10000    31.9    34.8    92     38.4    32.2   120 
 SANDSTONE RS             8150    14.0    15.4    92     22.2    20.2   111 
 WHISKEY PARK             8950    29.2    30.4    97     31.9    30.2   106 
                                                -----                  -----
                Basin wide percent of average     97                    112 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    16.9    15.4   110     16.0    17.4    93 
 BLIND BULL SUM           8650    28.7    30.7    94     23.2    25.4    92 
 EAST RIM DIVIDE          7930    14.6    14.9    99     14.9    16.2    92 
 ELKHART PARK G.S.        9400    15.0    14.7   102     15.7    17.0    93 
 GROS VENTRE SUMMIT       8775    16.9    16.0   106     16.7    17.0    98 
 KENDALL R.S.             7740    16.2    13.6   119     17.0    16.5   104 
 LOOMIS PARK              8240      -M    17.2      *    21.2    20.2   105 
 NEW FORK LAKE            8340    13.5    11.0   123     12.5    15.5    82 
 SNIDER BASIN             8250    18.5    15.5   121     18.7    16.2   116 
 SPRING CREEK DIVIDE      9000    32.3    29.2   111     29.4    29.2   102 
 TRIPLE PEAK              8500    31.4    26.7   118     31.9    32.9    97 
                                                -----                  -----
                Basin wide percent of average    109                     98 


LOWER GREEN RIVER

 HAMS FORK                7840    15.0     7.6   198     12.5    14.4    87 
 HEWINTA                  9500    13.6     9.9   139     15.5    14.2   109 
 HICKERSON PARK           9150     5.8     6.8    86     10.5    10.5   100 
 HOLE-IN-ROCK             9150     7.3     6.3   115     10.9    10.5   103 
 INDIAN CREEK             9425    32.0    30.0   107     26.7    27.5    98 
 KELLEY R.S.              8180    18.0    17.7   103     19.9    20.0   100 
 STEEL CREEK PARK        10100    16.0    17.7    91     17.9    14.0   128 
                                                -----                  -----
                Basin wide percent of average    113                    103 


UPPER BEAR RIVER

 BUG LAKE                 7950    24.2    20.4   119     21.7    20.7   105 
 HAYDEN FORK              9400    16.2    12.5   129     21.5    20.5   105 
 KELLEY R.S.              8180    18.0    17.7   103     19.9    20.0   100 
 LILY LAKE                9050    13.1    13.1   100     19.2    16.0   121 
 MONTE CRISTO             8960    28.5    29.5    97     28.0    27.4   103 
 SALT RIVER SUMMIT        7600    16.9    14.1   120     19.2    18.0   107 
 TRIAL LAKE               9960    22.4    25.9    87     23.4    25.5    92 
                                                -----                  -----
                Basin wide percent of average    105                    104 

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


-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.