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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: MAY 31 , 1999 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030      .0      .3     0*    31.4    27.9   113 
 COTTONWOOD CREEK         7600     8.6      .0   956*    37.3    31.2   120 
 GRANITE CREEK            6770     1.7     2.2    77     28.4    29.9    95 
 GRASSY LAKE              7265    24.0    13.0   187     51.3    46.3   111 
 GROS VENTRE SUMMIT       8775     7.8      .6  1284*    20.7    20.2   103 
 LEWIS LAKE DIVIDE        7860    27.5    20.4   135     47.3    47.0   101 
 PHILLIPS BENCH           8200    21.0    18.2   117     38.2    37.0   103 
 SALT RIVER SUMMIT        7600      .3      .0      *    23.7    21.4   111 
 SNAKE RIVER STATION      6920      .0      .7     0*    31.7    32.5    98 
 SPRING CREEK DIVIDE      9000    25.0    19.5   129     36.8    33.8   109 
 THUMB DIVIDE             7980     4.3      .7   615*    29.0    26.2   112 
 TOGWOTEE PASS            9580      -M    23.9      *    36.3    35.3   104 
 TWO OCEAN PLATEAU        9360    34.8    22.9   153     38.3    38.3   100 
 WILLOW CREEK             8450    17.4    19.9    88     50.0    39.9   126 
                                                -----                  -----
                Basin wide percent of average    145                    108 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    23.2    19.9   117     28.9    24.9   117 
 BLACK BEAR               7950    50.0    28.2   178     62.2    50.5   123 
 CANYON                   7940     2.2     1.9   117     23.9    18.9   126 
 FISHER CREEK             9100    36.9    32.2   115     45.3    46.9    97 
 MADISON PLATEAU          7750      -M     8.2      *    40.5    33.3   122 
 NORTHEAST ENTRANCE       7350      .0      .5     0*    18.9    16.5   115 
 PARKER PEAK              9400    17.7    18.9    94       -M    21.4      *
 SYLVAN LAKE              8420      -M    14.5      *    37.3    26.2   142 
 THUMB DIVIDE             7980     4.3      .7   615*    29.0    26.2   112 
 TWO OCEAN PLATEAU        9360    34.8    22.9   153     38.3    38.3   100 
 WHISKEY CREEK            6800     7.1     1.7   418*    31.4    27.7   114 
 WHITE MILL               8700    25.2    19.9   127     31.4    36.5    86 
 WOLVERINE                7650      .0      .3     0*    16.4    18.2    91 
                                                -----                  -----
                Basin wide percent of average    138                    111 


WIND RIVER

 BURROUGHS CREEK          8750    10.4     2.3   448     24.9    22.5   111 
 COLD SPRINGS             9630     9.0      .5  1781*    25.7    16.2   160 
 DEER PARK                9700    20.4      -M      *    34.3      -M      *
 HOBBS PARK              10100    22.4     9.9   228     31.2    20.9   150 
 LITTLE WARM              9620     8.7     1.0   870*    26.2    19.4   136 
 SOUTH PASS               9040    15.2    10.5   147     31.4    23.9   131 
 ST. LAWRENCE ALT         8620      .0      .3     0*    22.4    14.9   152 
 TOGWOTEE PASS            9580      -M    23.9      *    36.3    35.3   104 
 TOWNSEND CREEK           8700     6.0     2.2   286     26.9    18.7   145 
                                                -----                  -----
                Basin wide percent of average    271*                   132 


BIGHORN BASIN

 BALD MTN.                9375    21.2    18.9   113     26.5    25.2   106 
 BEAR TRAP MEADOW         7900      .0      .2     0*    19.2    13.9   140 
 BLACKWATER               9780    30.9    19.2   161     32.2    23.9   135 
 BONE SPRINGS DIV         9350    16.4     8.7   188     26.9    22.2   122 
 EVENING STAR             9200    30.9    25.9   120     42.4    29.9   143 
 GRAVE SPRINGS            8550      .0     2.7     0     19.9    16.2   123 
 KIRWIN                   9550    11.9     5.5   219     22.7    16.2   141 
 MARQUETTE                8760    13.1     4.5   298     22.5    17.2   131 
 MIDDLE POWDER            7760     4.6     3.3   144     23.2    18.2   128 
 OWL CREEK                8975      .5      .3   250*    16.9    10.7   158 
 POWDER RIVER PASS        9480     4.0     1.7   250     23.5    18.2   130 
 SHELL CREEK              9580    12.5    11.6   108     21.9    19.7   111 
 SYLVAN LAKE              8420      -M    14.5      *    37.3    26.2   142 
 SYLVAN ROAD              8120      .0     1.2     0*    23.9    21.7   110 
 TIMBER CREEK             7950     2.2      .5   525*    19.4    13.7   142 
 YOUNTS PEAK              8350    14.4     9.5   151     23.7    22.4   106 
                                                -----                  -----
                Basin wide percent of average    144                    128 


SHOSHONE RIVER

 BLACKWATER               9780    30.9    19.2   161     32.2    23.9   135 
 EVENING STAR             9200    30.9    25.9   120     42.4    29.9   143 
 KIRWIN                   9550    11.9     5.5   219     22.7    16.2   141 
 MARQUETTE                8760    13.1     4.5   298     22.5    17.2   131 
 SYLVAN LAKE              8420      -M    14.5      *    37.3    26.2   142 
 SYLVAN ROAD              8120      .0     1.2     0*    23.9    21.7   110 
 YOUNTS PEAK              8350    14.4     9.5   151     23.7    22.4   106 
                                                -----                  -----
                Basin wide percent of average    155                    130 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900      .0      .2     0*    19.2    13.9   140 
 BIG GOOSE                7990      .0      -M      *    19.9      -M      *
 BONE SPRINGS DIV         9350    16.4     8.7   188     26.9    22.2   122 
 BURGESS JUNCTION         7880     3.7     2.9   125     19.2    17.7   110 
 CLOUD PEAK RESERVOIR     9860    16.0     8.9   181     26.5    21.2   126 
 DOME LAKE                8880      -M     4.3      *    18.7    20.2    93 
 GRAVE SPRINGS            8550      .0     2.7     0     19.9    16.2   123 
 HANSEN SAWMILL           8760      .0     1.0     0     18.4    13.0   141 
 MIDDLE POWDER            7760     4.6     3.3   144     23.2    18.2   128 
 POWDER RIVER PASS        9480     4.0     1.7   250     23.5    18.2   130 
 SUCKER CREEK             8880     7.0     4.5   157     23.5    20.4   116 
 TIE CREEK                6870      .0      -M      *    19.9    16.9   118 
                                                -----                  -----
                Basin wide percent of average    155                    121 


BELLE FOURCHE

 BLIND PARK               6890      .0      .3     0*    21.5    18.2   119 
 NORTH RAPID CREEK        6130      .0      -M      *    18.9      -M      *
 WARREN PEAK              6520      .0      .5     0*      -M    13.4      *
                                                -----                  -----
                Basin wide percent of average      0*                   119*


UPPER N. PLATTE RIVER

 COLUMBINE                9400      .0     3.4     0     30.5    30.9    99 
 DIVIDE PEAK              8800      .3     3.5     9     32.9    30.7   108 
 ELK RIVER                8700      .0      .7     0*    30.7    24.5   125 
 JOE WRIGHT              10120    17.0    17.5    98     35.5    34.8   103 
 NORTH FRENCH CREEK      10100    34.0    20.7   166     40.3    32.3   126 
 OLD BATTLE              10000    32.4    24.9   131     49.5    39.5   126 
 SOUTH BRUSH CREEK        8400     6.8     1.4   524*    27.4    23.4   118 
 TOWER                   10500    45.3    44.8   101     51.4    49.3   105 
 WEBBER SPRINGS           9200     5.8    11.0    52     35.8    33.8   106 
 WILLOW CREEK PASS        9540     3.8     2.8   136     18.0    18.4    99 
                                                -----                  -----
                Basin wide percent of average    112                    111 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    17.9    13.6   132     34.3    27.0   128 
 CASPER MTN.              7900      .3     4.0     6     24.7    22.9   108 
 DEADMAN HILL            10220    13.1    10.7   123     25.9    24.5   106 
 DEER PARK                9700    20.4      -M      *    34.3      -M      *
 LAPRELE CREEK            8320      .0     1.2     0     23.4    18.0   131 
 RENO HILL                8400      .0     3.3     0     27.7    24.4   114 
 ROACH                    9700      -M     8.0      *    27.4    30.2    92 
 SAND LAKE               10080    46.3    25.4   183     39.9    28.4   141 
 SOUTH PASS               9040    15.2    10.5   147     31.4    23.9   131 
 WINDY PEAK               7840      .0      .3     0*    20.5    15.6   132 
                                                -----                  -----
                Basin wide percent of average    135                    119 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100*    24.0    20.9   115 
 DIVIDE PEAK              8800      .3     3.5     9     32.9    30.7   108 
 OLD BATTLE              10000    32.4    24.9   131     49.5    39.5   126 
 SANDSTONE RS             8150      .0      .3     0*    27.4    26.0   106 
 WHISKEY PARK             8950    27.5    12.9   215     39.8    38.3   105 
                                                -----                  -----
                Basin wide percent of average    146                    112 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100     1.9      .6   317*    20.4    20.7    99 
 BLIND BULL SUM           8650    28.4    16.9   170     29.2    29.5    99 
 EAST RIM DIVIDE          7930     5.1     7.5    69     18.9    19.2    98 
 ELKHART PARK G.S.        9400     4.5     4.8    94     20.7    20.2   102 
 GROS VENTRE SUMMIT       8775     7.8      .6  1284*    20.7    20.2   103 
 KENDALL R.S.             7740      .2      .0      *    20.9    19.7   106 
 LOOMIS PARK              8240      -M      .7      *    25.5    23.9   108 
 NEW FORK LAKE            8340      .0      .5     0*    17.9    18.4    98 
 SNIDER BASIN             8250     1.4      .5   280*    23.4    19.2   122 
 SPRING CREEK DIVIDE      9000    25.0    19.5   129     36.8    33.8   109 
 TRIPLE PEAK              8500    15.0    15.1    99     39.8    38.8   103 
                                                -----                  -----
                Basin wide percent of average    136*                   105 


LOWER GREEN RIVER

 HAMS FORK                7840      .0      .0   100*    18.9    16.9   112 
 HEWINTA                  9500      .0      .0   100*    20.7    19.0   109 
 HICKERSON PARK           9150      .2      .2   100*    16.2    15.2   106 
 HOLE-IN-ROCK             9150      .0      .3     0*    16.2    15.2   106 
 INDIAN CREEK             9425    26.7    17.9   150     35.3    32.3   109 
 KELLEY R.S.              8180      .6      .6   100*    25.2    23.9   106 
 STEEL CREEK PARK        10100    16.4    12.4   134     24.9    19.7   126 
                                                -----                  -----
                Basin wide percent of average    141*                   111 


UPPER BEAR RIVER

 BUG LAKE                 7950     5.1     2.8   183     29.9    24.9   120 
 HAYDEN FORK              9400      .3      .2   300*    29.4    26.2   113 
 KELLEY R.S.              8180      .6      .6   100*    25.2    23.9   106 
 LILY LAKE                9050      .6     1.4    47*    26.4    21.2   125 
 MONTE CRISTO             8960    23.0    10.6   217     38.5    33.7   115 
 SALT RIVER SUMMIT        7600      .3      .0      *    23.7    21.4   111 
 TRIAL LAKE               9960    15.1    12.6   120     32.3    31.7   102 
                                                -----                  -----
                Basin wide percent of average    160*                   113 

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


-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.