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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 MONDAY: MARCH 31 , 2003 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    20.9    18.1   115     22.8    21.6   106 
 COTTONWOOD CREEK         7600    23.3    24.0    97     24.4    27.6    88 
 GRANITE CREEK            6770    15.0    18.6    81     17.3    20.0    86 
 GRASSY LAKE              7265    32.8    35.9    91     32.7    36.2    90 
 GROS VENTRE SUMMIT       8775    13.1    14.3    92     12.0    12.9    93 
 LEWIS LAKE DIVIDE        7860    34.6    35.6    97     30.3    37.0    82 
 PHILLIPS BENCH           8200      -M    29.0      *      -M    29.2      *
 SALT RIVER SUMMIT        7600    12.0    14.5    83     14.2    18.9    75 
 SNAKE RIVER STATION      6920    15.2    19.1    80     21.2    22.4    95 
 SPRING CREEK DIVIDE      9000      -M    26.8      *      -M    26.7      *
 THUMB DIVIDE             7980    16.2    19.1    85     16.1    19.0    85 
 TOGWOTEE PASS            9580    24.3    25.1    97     24.4    24.8    98 
 TWO OCEAN PLATEAU        9360    32.3    28.2   115     26.5    27.9    95 
 WILLOW CREEK             8450    30.2    30.4    99     33.4    32.4   103 
                                                -----                  -----
                Basin wide percent of average     95                     92 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    26.4    23.5   112     23.1    20.2   114 
 BLACK BEAR               8170    31.7    39.6    80     29.5    40.7    72 
 CANYON                   8090    13.6    13.8    99     14.5    15.5    94 
 FISHER CREEK             9100    36.3    35.2   103     33.3    36.6    91 
 MADISON PLATEAU          7750    18.6    25.4    73     18.7    26.9    70 
 NORTHEAST ENTRANCE       7350    11.3    11.3   100     13.3    12.7   105 
 PARKER PEAK              9400    25.0    21.8   115     20.3    16.3   125 
 SYLVAN LAKE              8420    21.1    22.7    93     23.2    21.0   110 
 THUMB DIVIDE             7980    16.2    19.1    85     16.1    19.0    85 
 TWO OCEAN PLATEAU        9360    32.3    28.2   115     26.5    27.9    95 
 WHISKEY CREEK            6800    11.3    17.3    65     14.3    21.1    68 
 WHITE MILL               8700    26.8    24.5   109     23.2    27.2    85 
 WOLVERINE                7650    12.9    11.6   111     12.4    12.8    97 
                                                -----                  -----
                Basin wide percent of average     96                     90 


WIND RIVER

 BURROUGHS CREEK          8750    18.2    14.7   124     19.4    16.3   119 
 COLD SPRINGS             9630     9.0     8.9   101     10.8    10.6   102 
 DEER PARK                9700    15.1    17.0    89     17.6    22.0    80 
 HOBBS PARK              10100    14.8    15.0    99     13.2    12.8   103 
 LITTLE WARM              9370    10.2    11.9    86     11.4    13.4    85 
 SOUTH PASS               9040    14.5    16.6    87     14.8    18.5    80 
 ST. LAWRENCE ALT         8620     7.9     7.4   107      9.0     8.8   102 
 TOGWOTEE PASS            9580    24.3    25.1    97     24.4    24.8    98 
 TOWNSEND CREEK           8700    10.6     8.7   122     12.2    11.6   105 
                                                -----                  -----
                Basin wide percent of average     99                     96 


BIGHORN BASIN

 BALD MTN.                9380    19.4    19.8    98     17.5    17.4   101 
 BEAR TRAP MEADOW         8200     7.4     5.2   142      7.7     8.2    94 
 BLACKWATER               9780    26.1    24.7   106     22.5    20.6   109 
 BONE SPRINGS DIV         9350    17.3    16.3   106     16.0    14.6   110 
 EVENING STAR             9200    30.4    29.9   102     31.5    25.4   124 
 GRAVE SPRINGS            8550     6.9     9.3    74      7.8     9.6    81 
 KIRWIN                   9550    12.5    11.4   110     13.3    11.2   119 
 MARQUETTE                8760    13.3     8.9   149     13.8     9.7   142 
 MIDDLE POWDER            7760     8.8    11.7    75      7.4    12.3    60 
 OWL CREEK                8975     7.2     5.5   131      6.6     5.9   112 
 POWDER RIVER PASS        9480    10.8    10.8   100     11.8    12.3    96 
 SHELL CREEK              9580    15.8    14.8   107     14.2    13.3   107 
 SYLVAN LAKE              8420    21.1    22.7    93     23.2    21.0   110 
 SYLVAN ROAD              7120    14.1    12.9   109     17.5    17.7    99 
 TIMBER CREEK             7950     6.5     5.7   114      7.6     7.3   104 
 YOUNTS PEAK              8350    17.3    17.2   101     16.9    16.2   104 
                                                -----                  -----
                Basin wide percent of average    104                    106 


SHOSHONE RIVER

 BLACKWATER               9780    26.1    24.7   106     22.5    20.6   109 
 EVENING STAR             9200    30.4    29.9   102     31.5    25.4   124 
 KIRWIN                   9550    12.5    11.4   110     13.3    11.2   119 
 MARQUETTE                8760    13.3     8.9   149     13.8     9.7   142 
 SYLVAN LAKE              8420    21.1    22.7    93     23.2    21.0   110 
 SYLVAN ROAD              7120    14.1    12.9   109     17.5    17.7    99 
 YOUNTS PEAK              8350    17.3    17.2   101     16.9    16.2   104 
                                                -----                  -----
                Basin wide percent of average    106                    114 


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     7.4     5.2   142      7.7     8.2    94 
 BIG GOOSE                7990    12.5    10.6   118     13.6     8.4   162 
 BONE SPRINGS DIV         9350    17.3    16.3   106     16.0    14.6   110 
 BURGESS JUNCTION         7880    12.5    11.6   108     13.0    12.1   107 
 CLOUD PEAK RESERVOIR     9860    16.6    13.4   124     14.1    12.8   110 
 DOME LAKE                8880    14.6    12.5   117     14.7    13.1   112 
 GRAVE SPRINGS            8550     6.9     9.3    74      7.8     9.6    81 
 HANSEN SAWMILL           8360     9.8     6.5   151     10.7     8.1   132 
 MIDDLE POWDER            7760     8.8    11.7    75      7.4    12.3    60 
 POWDER RIVER PASS        9480    10.8    10.8   100     11.8    12.3    96 
 SUCKER CREEK             8880    15.2    11.7   130     15.5    13.5   115 
 TIE CREEK                6870     9.0     6.1   148     13.2     9.8   135 
                                                -----                  -----
                Basin wide percent of average    112                    108 


BELLE FOURCHE

 BLIND PARK               6890     8.4     8.7    97     10.0    11.0    91 
 COLE CANYON              5910     4.6      -M      *     6.5      -M      *
 NORTH RAPID CREEK        6130     5.6     8.3    67      8.3     8.6    97 
                                                -----                  -----
                Basin wide percent of average     82                     93 


UPPER N. PLATTE RIVER

 COLUMBINE                9400    22.5    24.9    90     23.8    25.2    94 
 DIVIDE PEAK              8800    21.8    19.9   110     20.8    20.7   100 
 ELK RIVER                8700    17.8    19.5    91     18.9    19.6    96 
 JOE WRIGHT              10120    24.3    21.4   114     28.2    24.7   114 
 NORTH FRENCH CREEK      10100    30.7    29.3   105     27.1    24.7   110 
 OLD BATTLE              10000      -M    32.2      *      -M    34.6      *
 SAGE CREEK BASIN         7850    11.5    11.5   100     12.3    12.0   103 
 SOUTH BRUSH CREEK        8400    14.2    13.1   108     16.9    16.3   104 
 TOWER                   10500    42.8    45.5    94     33.6    38.4    88 
 WEBBER SPRINGS           9200    22.3    26.3    85     24.9    26.6    94 
 WILLOW CREEK PASS        9540    15.7    12.0   131     14.2    12.8   111 
                                                -----                  -----
                Basin wide percent of average    100                    100 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    17.9    23.7    76     20.9    22.0    95 
 CASPER MTN.              7900    14.6    14.5   101     11.3    14.3    79 
 DEADMAN HILL            10220    13.9    16.3    85     17.4    16.9   103 
 DEER PARK                9700    15.1    17.0    89     17.6    22.0    80 
 LAPRELE CREEK            8320     8.8    10.9    81     10.7    12.5    86 
 RENO HILL                8400    12.9    14.2    91     13.2    14.9    89 
 ROACH                    9700    17.9    17.1   105     19.5    18.6   105 
 SAND LAKE               10080    25.3    32.5    78       -M    24.0      *
 SOUTH PASS               9040    14.5    16.6    87     14.8    18.5    80 
 WINDY PEAK               7840    10.3     8.0   129     11.3    10.5   108 
                                                -----                  -----
                Basin wide percent of average     89                     91 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    12.6    11.0   115     15.3    15.8    97 
 DIVIDE PEAK              8800    21.8    19.9   110     20.8    20.7   100 
 OLD BATTLE              10000      -M    32.2      *      -M    34.6      *
 SANDSTONE RS             8150    14.0    14.8    95     18.1    18.7    97 
 WHISKEY PARK             8950    26.8    30.2    89     26.6    28.6    93 
                                                -----                  -----
                Basin wide percent of average     99                     96 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    12.0    14.6    82     11.1    13.4    83 
 BLIND BULL SUM           8650    23.8    28.1    85     17.4    22.4    78 
 EAST RIM DIVIDE          7930    10.9    13.2    83     10.6    12.1    88 
 ELKHART PARK G.S.        9400    13.6    13.5   101     12.9    13.3    97 
 GROS VENTRE SUMMIT       8775    13.1    14.3    92     12.0    12.9    93 
 KENDALL R.S.             7740    13.1    14.6    90     13.4    14.6    92 
 LOOMIS PARK              8240    18.5    17.4   106     16.4    17.5    94 
 NEW FORK LAKE            8340    10.8    11.3    96       -M    11.3      *
 SNIDER BASIN             8250    13.8    14.6    95     13.6    16.2    84 
 SPRING CREEK DIVIDE      9000      -M    26.8      *      -M    26.7      *
 TRIPLE PEAK              8500    25.6    25.1   102     26.6    25.0   106 
                                                -----                  -----
                Basin wide percent of average     93                     91 


LOWER GREEN RIVER

 HAMS FORK                7840    11.9    12.0    99     11.0    12.2    90 
 HEWINTA                  9500    10.5    12.0    88     11.6    14.6    79 
 HICKERSON PARK           9150     6.9     7.6    91      8.4     7.9   106 
 HOLE-IN-ROCK             9150     7.8     7.2   108      9.0     7.4   122 
 INDIAN CREEK             9425    24.0    28.0    86     20.0    25.6    78 
 KELLEY R.S.              8180    13.8    17.0    81     14.7    20.5    72 
 STEEL CREEK PARK        10100    12.8    15.8    81     12.9    16.2    80 
                                                -----                  -----
                Basin wide percent of average     88                     84 


UPPER BEAR RIVER

 BUG LAKE                 7950    16.1    21.1    76     15.9    19.4    82 
 HAYDEN FORK              9400    14.5    16.5    88     17.7    21.1    84 
 KELLEY R.S.              8180    13.8    17.0    81     14.7    20.5    72 
 LILY LAKE                9050    12.0    13.4    90     13.9    17.5    79 
 MONTE CRISTO             8960    15.8    30.0    53     20.5    25.6    80 
 SALT RIVER SUMMIT        7600    12.0    14.5    83     14.2    18.9    75 
 TRIAL LAKE               9960    14.0    25.2    56     15.8    25.0    63 
                                                -----                  -----
                Basin wide percent of average     71                     76 

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


 -M   = Missing data
  *   = Data may not provide a valid measure of conditions.
Units = inches for the Current and Average Snow Water Equivalent and 
	Total Precipitation values
 
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 1971-2000.

Provisional data, subject to revision.