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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 11:53p, 5/21/18
Temperature 56.8°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 TUESDAY: MAY 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    13.7     6.5   211     30.0    26.2   115 
 COTTONWOOD CREEK         7600    23.2    15.9   147     35.4    29.2   122 
 GRANITE CREEK            6770    14.5     9.0   161     27.2    27.9    98 
 GRASSY LAKE              7265    38.8    29.2   133     48.2    43.4   111 
 GROS VENTRE SUMMIT       8775      -M    11.2      *      -M    18.9      *
 LEWIS LAKE DIVIDE        7860    37.9    31.0   123     44.8    44.2   102 
 PHILLIPS BENCH           8200      -M    26.7      *      -M    34.8      *
 SALT RIVER SUMMIT        7600      -M     3.2      *      -M    20.0      *
 SNAKE RIVER STATION      6920    11.5    13.0    89     29.4    30.5    97 
 SPRING CREEK DIVIDE      9000    37.3    27.2   138     35.3    31.9   111 
 THUMB DIVIDE             7980      -M    12.5      *      -M    24.5      *
 TOGWOTEE PASS            9580      -M    26.7      *    34.2    33.0   104 
 TWO OCEAN PLATEAU        9360    41.3    26.7   155     35.8    35.9   100 
 WILLOW CREEK             8450    31.5    29.0   109     47.0    37.5   126 
                                                -----                  -----
                Basin wide percent of average    134                    109 


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    29.0    25.4   115     27.5    22.5   123 
 BLACK BEAR               7950      -M    37.9      *      -M    47.9      *
 CANYON                   7940    12.9     7.8   165     21.2    17.2   124 
 FISHER CREEK             9100      -M    37.8      *      -M    43.8      *
 MADISON PLATEAU          7750      -M    20.4      *    36.9    31.0   120 
 NORTHEAST ENTRANCE       7350     2.9     3.7    81     16.7    14.9   113 
 PARKER PEAK              9400      -M    23.0      *      -M    19.4      *
 SYLVAN LAKE              8420    25.4    21.7   118     32.3    23.7   137 
 THUMB DIVIDE             7980      -M    12.5      *      -M    24.5      *
 TWO OCEAN PLATEAU        9360    41.3    26.7   155     35.8    35.9   100 
 WHISKEY CREEK            6800    18.7    11.2   167     28.5    25.9   111 
 WHITE MILL               8700    30.9    25.4   122     28.9    33.9    85 
 WOLVERINE                7650     2.9     4.5    65     15.4    16.2    95 
                                                -----                  -----
                Basin wide percent of average    130                    110 


WIND RIVER

 BURROUGHS CREEK          8750    18.4     8.7   211     22.2    20.5   108 
 COLD SPRINGS             9630    18.9     4.0   471     23.9    14.1   170 
 DEER PARK                9700    25.9      -M      *    32.8      -M      *
 HOBBS PARK              10100    29.9    17.4   173     27.9    18.5   151 
 LITTLE WARM              9620    20.4     7.0   295     24.2    17.4   140 
 SOUTH PASS               9040    24.5    17.0   145     30.2    21.7   139 
 ST. LAWRENCE ALT         8620    13.2     3.3   400     21.0    13.4   158 
 TOGWOTEE PASS            9580      -M    26.7      *    34.2    33.0   104 
 TOWNSEND CREEK           8700    18.9     7.1   267     25.7    16.7   155 
                                                -----                  -----
                Basin wide percent of average    224                    135 


BIGHORN BASIN

 BALD MTN.                9375    24.9    24.4   103     24.4    22.4   110 
 BEAR TRAP MEADOW         7900     1.7     2.3    70       -M    11.7      *
 BLACKWATER               9780    35.3    25.2   141     29.4    21.7   136 
 BONE SPRINGS DIV         9350    21.9    17.2   127     23.7    19.5   122 
 EVENING STAR             9200    36.8    30.5   121     39.8    27.2   147 
 GRAVE SPRINGS            8550    11.2    11.2   100     18.2    13.7   133 
 KIRWIN                   9550    17.4    10.6   164     20.5    14.4   144 
 MARQUETTE                8760    17.0     8.0   216     19.5    14.9   132 
 MIDDLE POWDER            7760    17.7    14.4   124     23.4    16.0   147 
 OWL CREEK                8975    11.2     1.7   659     14.4     9.0   159 
 POWDER RIVER PASS        9480    12.1     7.5   162     21.4    16.0   135 
 SHELL CREEK              9580    19.4    17.0   114     20.4    17.2   119 
 SYLVAN LAKE              8420    25.4    21.7   118     32.3    23.7   137 
 SYLVAN ROAD              8120      -M     5.3      *      -M    19.7      *
 TIMBER CREEK             7950    10.9     3.5   309     16.9    11.4   149 
 YOUNTS PEAK              8350    21.2    16.7   128     21.7    20.4   107 
                                                -----                  -----
                Basin wide percent of average    134                    132 


SHOSHONE RIVER

 BLACKWATER               9780    35.3    25.2   141     29.4    21.7   136 
 EVENING STAR             9200    36.8    30.5   121     39.8    27.2   147 
 KIRWIN                   9550    17.4    10.6   164     20.5    14.4   144 
 MARQUETTE                8760    17.0     8.0   216     19.5    14.9   132 
 SYLVAN LAKE              8420    25.4    21.7   118     32.3    23.7   137 
 SYLVAN ROAD              8120      -M     5.3      *      -M    19.7      *
 YOUNTS PEAK              8350    21.2    16.7   128     21.7    20.4   107 
                                                -----                  -----
                Basin wide percent of average    136                    134 


POWDER-TONGUE

 BEAR TRAP MEADOW         7900     1.7     2.3    70       -M    11.7      *
 BIG GOOSE                7990     9.9      -M      *    18.2      -M      *
 BONE SPRINGS DIV         9350    21.9    17.2   127     23.7    19.5   122 
 BURGESS JUNCTION         7880    11.9    11.9   100     17.5    15.5   113 
 CLOUD PEAK RESERVOIR     9860    24.7    16.7   149     24.9    18.5   135 
 DOME LAKE                8880      -M    11.7      *    17.7    17.7   100 
 GRAVE SPRINGS            8550    11.2    11.2   100     18.2    13.7   133 
 HANSEN SAWMILL           8760     4.5     5.0    92     17.2    11.2   154 
 MIDDLE POWDER            7760    17.7    14.4   124     23.4    16.0   147 
 POWDER RIVER PASS        9480    12.1     7.5   162     21.4    16.0   135 
 SUCKER CREEK             8880    14.9    11.5   129     21.4    17.9   121 
 TIE CREEK                6870      -M      -M      *      -M    15.0      *
                                                -----                  -----
                Basin wide percent of average    124                    128 


BELLE FOURCHE

 BLIND PARK               6890      .5     6.1     7     19.2    15.4   125 
 NORTH RAPID CREEK        6130      .3      -M      *    17.2      -M      *
 WARREN PEAK              6520     1.7     6.1    28       -M    11.4      *
                                                -----                  -----
                Basin wide percent of average     18                    125*


UPPER N. PLATTE RIVER

 COLUMBINE                9400    15.5    16.4    95     29.0    29.2   100 
 DIVIDE PEAK              8800    19.9    14.5   137     31.7    28.5   111 
 ELK RIVER                8700    11.2    10.9   104     27.9    22.9   122 
 JOE WRIGHT              10120    23.5    24.0    98     33.3    31.9   105 
 NORTH FRENCH CREEK      10100    40.7    27.5   148     40.0    29.4   137 
 OLD BATTLE              10000    39.8    37.3   107     46.8    37.0   127 
 SOUTH BRUSH CREEK        8400     9.7     7.3   133     25.7    21.5   120 
 TOWER                   10500    57.3    50.9   113     49.4    45.3   110 
 WEBBER SPRINGS           9200    20.9    22.2    95     33.8    31.7   107 
 WILLOW CREEK PASS        9540    15.5    11.5   135     16.0    16.4    97 
                                                -----                  -----
                Basin wide percent of average    115                    114 


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    28.4    26.2   109     31.9    24.9   129 
 CASPER MTN.              7900    12.9    13.1    98     23.2    20.2   115 
 DEADMAN HILL            10220    21.7    18.9   115     24.0    22.4   108 
 DEER PARK                9700    25.9      -M      *    32.8      -M      *
 LAPRELE CREEK            8320      .2     4.3     3     20.7    15.9   132 
 RENO HILL                8400    14.5    10.0   145     26.4    23.2   115 
 ROACH                    9700      -M    16.7      *    26.0    27.4    96 
 SAND LAKE               10080    46.3    36.0   129     37.7    26.0   145 
 SOUTH PASS               9040    24.5    17.0   145     30.2    21.7   139 
 WINDY PEAK               7840     1.7     4.8    34     18.0    13.5   135 
                                                -----                  -----
                Basin wide percent of average    115                    123 


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .3     1.4    15     23.2    19.4   120 
 DIVIDE PEAK              8800    19.9    14.5   137     31.7    28.5   111 
 OLD BATTLE              10000    39.8    37.3   107     46.8    37.0   127 
 SANDSTONE RS             8150     3.8     4.5    83     26.2    24.0   109 
 WHISKEY PARK             8950    30.7    26.7   116     37.8    35.4   107 
                                                -----                  -----
                Basin wide percent of average    112                    115 


UPPER GREEN RIVER

 BIG SANDY OPENING        9100    14.5    11.0   131     18.7    19.2    98 
 BLIND BULL SUM           8650    32.3    22.5   144     27.4    27.9    99 
 EAST RIM DIVIDE          7930    14.6    13.5   109     17.7    18.0    99 
 ELKHART PARK G.S.        9400      -M    11.1      *      -M    18.9      *
 GROS VENTRE SUMMIT       8775      -M    11.2      *      -M    18.9      *
 KENDALL R.S.             7740    10.2     3.2   330     19.7    18.4   108 
 LOOMIS PARK              8240      -M    12.5      *    24.5    22.2   111 
 NEW FORK LAKE            8340    11.2     7.1   158     16.0    17.2    93 
 SNIDER BASIN             8250      -M     9.9      *      -M    17.9      *
 SPRING CREEK DIVIDE      9000    37.3    27.2   138     35.3    31.9   111 
 TRIPLE PEAK              8500      -M    22.4      *      -M    36.3      *
                                                -----                  -----
                Basin wide percent of average    143                    104 


LOWER GREEN RIVER

 HAMS FORK                7840     7.5     1.7   436     18.2    15.9   115 
 HEWINTA                  9500    12.7     1.7   794     19.2    17.2   112 
 HICKERSON PARK           9150     5.6     1.4   431     14.5    13.4   109 
 HOLE-IN-ROCK             9150     8.6     1.2   782     14.7    13.4   111 
 INDIAN CREEK             9425      -M    26.2      *      -M    30.2      *
 KELLEY R.S.              8180    15.5    11.5   134     24.0    22.2   109 
 STEEL CREEK PARK        10100    21.5    17.4   125     22.9    17.4   133 
                                                -----                  -----
                Basin wide percent of average    207                    115 


UPPER BEAR RIVER

 BUG LAKE                 7950      -M    11.9      *      -M    23.4      *
 HAYDEN FORK              9400    14.5     2.4   601     27.2    24.2   113 
 KELLEY R.S.              8180    15.5    11.5   134     24.0    22.2   109 
 LILY LAKE                9050    13.1     6.6   199     24.2    19.2   127 
 MONTE CRISTO             8960    38.8    23.2   168     36.8    31.4   117 
 SALT RIVER SUMMIT        7600      -M     3.2      *      -M    20.0      *
 TRIAL LAKE               9960    28.2    21.9   129     30.5    29.4   104 
                                                -----                  -----
                Basin wide percent of average    168                    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.