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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

At 8:33p, 5/21/18
Temperature 58.4°F
Wind 3.0 mph


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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 WEDNESDAY: MAY 20 , 1998 
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %  
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     1.1     3.4    32     24.6    26.9    91 
 COTTONWOOD CREEK         7600     8.3     9.9    84     28.5    30.0    95 
 GRANITE CREEK            6770     3.4     5.7    60     24.1    28.6    84 
 GRASSY LAKE              7265    19.3    22.7    85     41.0    44.6    92 
 GROS VENTRE SUMMIT       8775     6.7     7.1    94     16.4    19.3    85 
 LEWIS LAKE DIVIDE        7860    21.0    26.7    79     37.2    45.4    82 
 PHILLIPS BENCH           8200    22.4    23.0    97     31.1    35.7    87 
 SALT RIVER SUMMIT        7600     1.3      .0      *    23.9    20.5   117 
 SNAKE RIVER STATION      6920      .0     8.1     0     26.7    31.3    85 
 SPRING CREEK DIVIDE      9000    20.1    23.9    84     26.3    32.6    81 
 THUMB DIVIDE             7980     3.7     7.9    47     21.8    25.1    87 
 TOGWOTEE PASS            9580    22.9    25.3    91     28.2    34.0    83 
 TWO OCEAN PLATEAU        9360    27.9    25.2   111     32.4    37.0    88 
 WILLOW CREEK             8450    16.6    25.3    66     38.1    38.5    99 
                                                -----                  -----
                Basin wide percent of average     81                     89 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    16.5    23.3    71     19.2    23.5    82 
 BLACK BEAR               7950    35.1    34.2   103     43.3    49.0    88 
 CANYON                   7940      .5     5.0    10     17.1    17.9    96 
 FISHER CREEK             9100    27.2    35.7    76     32.7    45.1    73 
 MADISON PLATEAU          7750    14.6    15.5    94     28.5    32.0    89 
 NORTHEAST ENTRANCE       7350      .0     1.9     0     13.3    15.5    86 
 PARKER PEAK              9400    13.9    21.5    65     19.0    20.2    94 
 SYLVAN LAKE              8420    10.1    18.7    54     24.6    24.8    99 
 THUMB DIVIDE             7980     3.7     7.9    47     21.8    25.1    87 
 TWO OCEAN PLATEAU        9360    27.9    25.2   111     32.4    37.0    88 
 WHISKEY CREEK            6800     6.7     7.1    94     23.8    26.6    89 
 WHITE MILL               8700    19.9    23.3    85     24.7    35.1    70 
 WOLVERINE                7650      .0     2.1     0     11.0    17.0    65 
                                                -----                  -----
                Basin wide percent of average     80                     84 


WIND RIVER

 BURROUGHS CREEK          8750    10.2     5.5   185     20.3    21.3    95 
 COLD SPRINGS             9630     3.2     2.1   152     16.4    14.9   110 
 DEER PARK                9700      -M      -M      *    26.2      -M      *
 HOBBS PARK              10100    17.5    14.7   119     20.5    19.5   105 
 LITTLE WARM              9620     3.8     4.0    95     17.2    18.1    95 
 SOUTH PASS               9040    10.7    14.6    73     22.7    22.7   100 
 ST. LAWRENCE ALT         8620      .5     1.7    29     15.0    13.9   108 
 TOGWOTEE PASS            9580    22.9    25.3    91     28.2    34.0    83 
 TOWNSEND CREEK           8700     3.8     4.8    79     18.8    17.4   108 
                                                -----                  -----
                Basin wide percent of average    100                     98 


BIGHORN BASIN

 BALD MTN.                9375    18.9    22.7    83     20.8    23.6    88 
 BEAR TRAP MEADOW         7900      .0     1.0     0     13.4    12.6   106 
 BLACKWATER               9780    20.9    23.0    91     22.0    22.7    97 
 BONE SPRINGS DIV         9350    13.5    14.1    96     20.3    20.6    99 
 EVENING STAR             9200    18.7    28.9    65     28.6    28.4   101 
 GRAVE SPRINGS            8550     5.6      -M      *    15.6    14.7   106 
 KIRWIN                   9550     9.1     8.6   106     17.5    15.1   116 
 MARQUETTE                8760     9.1     6.6   138     17.5    15.8   111 
 MIDDLE POWDER            7760     3.9    10.6    37     14.8    16.9    88 
 OWL CREEK                8975      .1      .7    14     11.0     9.7   113 
 POWDER RIVER PASS        9480     6.0     4.8   125     17.6    16.8   105 
 SHELL CREEK              9580    11.2    15.3    73     14.5    18.3    79 
 SYLVAN LAKE              8420    10.1    18.7    54     24.6    24.8    99 
 SYLVAN ROAD              8120      .0     3.1     0     16.3    20.6    79 
 TIMBER CREEK             7950      .0     1.8     0     13.0    12.3   106 
 YOUNTS PEAK              8350    11.9    13.8    86     18.3    21.1    87 
                                                -----                  -----
                Basin wide percent of average     77                     97 


SHOSHONE RIVER

 BLACKWATER               9780    20.9    23.0    91     22.0    22.7    97 
 EVENING STAR             9200    18.7    28.9    65     28.6    28.4   101 
 KIRWIN                   9550     9.1     8.6   106     17.5    15.1   116 
 MARQUETTE                8760     9.1     6.6   138     17.5    15.8   111 
 SYLVAN LAKE              8420    10.1    18.7    54     24.6    24.8    99 
 SYLVAN ROAD              8120      .0     3.1     0     16.3    20.6    79 
 YOUNTS PEAK              8350    11.9    13.8    86     18.3    21.1    87 
                                                -----                  -----
                Basin wide percent of average     78                     98 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900      .0     1.0     0     13.4    12.6   106 
 BONE SPRINGS DIV         9350    13.5    14.1    96     20.3    20.6    99 
 BURGESS JUNCTION         7880     5.4     8.5    64     15.3    16.4    93 
 CLOUD PEAK RESERVOIR     9860    12.6    13.8    91     21.0    19.7   107 
 DOME LAKE                8880      -M     8.4      *    17.3    18.7    93 
 GRAVE SPRINGS            8550     5.6      -M      *    15.6    14.7   106 
 HANSEN SAWMILL           8760      .2     3.1     6     14.5    12.0   121 
 MIDDLE POWDER            7760     3.9    10.6    37     14.8    16.9    88 
 POWDER RIVER PASS        9480     6.0     4.8   125     17.6    16.8   105 
 SUCKER CREEK             8880     3.8     8.6    44     17.3    19.0    91 
 TIE CREEK                6870      .0      -M      *    16.6    15.8   105 
                                                -----                  -----
                Basin wide percent of average     70                    100 


BELLE FOURCHE

 BLIND PARK               6890      .0     3.2     0     15.7    16.5    95 
 NORTH RAPID CREEK        6130      .0      -M      *    13.4      -M      *
 WARREN PEAK              6520      .0     3.3     0     13.7    12.1   113 
                                                -----                  -----
                Basin wide percent of average      0                    103 


UPPER N. PLATTE RIVER

 COLUMBINE                9400      .0    10.7     0     27.7    29.8    93 
 DIVIDE PEAK              8800     4.8     9.7    49     24.2    29.4    82 
 ELK RIVER                8700      .0     6.1     0     23.7    23.6   100 
 JOE WRIGHT              10120    18.2    21.8    83     30.1    33.1    91 
 NORTH FRENCH CREEK      10100    29.4    24.8   119     35.8    30.6   117 
 OLD BATTLE              10000    32.0    33.1    97     41.7    38.1   109 
 SOUTH BRUSH CREEK        8400      .0     4.5     0     16.5    22.3    74 
 TOWER                   10500    49.5    48.9   101     47.8    47.0   102 
 WEBBER SPRINGS           9200    10.0    17.5    57     30.6    32.5    94 
 WILLOW CREEK PASS        9540     4.1     8.2    50     10.8    17.2    63 
                                                -----                  -----
                Basin wide percent of average     80                     95 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    15.4    21.3    72     27.4    25.8   106 
 CASPER MTN.              7900      .2     8.9     2     16.0    21.3    75 
 DEADMAN HILL            10220    14.2    16.1    88     19.3    23.2    83 
 DEER PARK                9700      -M      -M      *    26.2      -M      *
 LAPRELE CREEK            8320      .0     2.7     0     13.2    16.8    79 
 RENO HILL                8400      .0     6.9     0     14.5    23.6    61 
 ROACH                    9700     9.2    13.5    68     21.7    28.5    76 
 SAND LAKE               10080    27.4    32.2    85     29.9    27.0   111 
 SOUTH PASS               9040    10.7    14.6    73     22.7    22.7   100 
 WINDY PEAK               7840      .0     2.5     0     11.6    14.3    81 
                                                -----                  -----
                Basin wide percent of average     65                     87 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .2      .0      *    18.3    20.0    92 
 DIVIDE PEAK              8800     4.8     9.7    49     24.2    29.4    82 
 OLD BATTLE              10000    32.0    33.1    97     41.7    38.1   109 
 SANDSTONE RS             8150      .0     1.6     0     22.8    24.8    92 
 WHISKEY PARK             8950    25.6    21.4   120     34.8    36.6    95 
                                                -----                  -----
                Basin wide percent of average     95                     95 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100     6.0     6.9    87     16.1    19.8    81 
 BLIND BULL SUM           8650    20.8    20.6   101     22.7    28.5    80 
 EAST RIM DIVIDE          7930     6.5    11.0    59     14.4    18.5    78 
 ELKHART PARK G.S.        9400     7.6     8.2    93     17.2    19.4    89 
 GROS VENTRE SUMMIT       8775     6.7     7.1    94     16.4    19.3    85 
 KENDALL R.S.             7740      .0      .0   100*    18.0    18.9    95 
 LOOMIS PARK              8240      -M     8.0      *    20.6    22.9    90 
 NEW FORK LAKE            8340      -M     4.4      *    14.3    17.6    81 
 SNIDER BASIN             8250     3.5     6.0    58     15.8    18.4    86 
 SPRING CREEK DIVIDE      9000    20.1    23.9    84     26.3    32.6    81 
 TRIPLE PEAK              8500    10.2    19.3    53     26.4    37.3    71 
                                                -----                  -----
                Basin wide percent of average     79                     82 


LOWER GREEN RIVER

 HAMS FORK                7840      .0      .0   100*    14.2    16.2    88 
 HEWINTA                  9500      .0      .0   100*    18.5    18.0   103 
 HICKERSON PARK           9150     1.7      .4   425*    17.7    14.1   126 
 HOLE-IN-ROCK             9150      .0      .4     0*    15.3    14.1   109 
 INDIAN CREEK             9425    20.4    22.7    90     24.1    31.1    77 
 KELLEY R.S.              8180     5.0     7.1    70     20.4    22.8    89 
 STEEL CREEK PARK        10100    20.5    15.2   135     23.4    18.4   127 
                                                -----                  -----
                Basin wide percent of average    104*                    99 


UPPER BEAR RIVER

 BUG LAKE                 7950    10.7     7.8   137     25.4    24.0   106 
 HAYDEN FORK              9400     2.5      .5   500*    25.9    25.0   104 
 KELLEY R.S.              8180     5.0     7.1    70     20.4    22.8    89 
 LILY LAKE                9050     2.8     4.3    65     22.5    19.9   113 
 MONTE CRISTO             8960      -M    18.3      *      -M    32.4      *
 SALT RIVER SUMMIT        7600     1.3      .0      *    23.9    20.5   117 
 TRIAL LAKE               9960    17.9    18.4    97     29.0    30.4    95 
                                                -----                  -----
                Basin wide percent of average    102                    103 

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


-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.