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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 TUESDAY: APRIL 5 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    22.5    18.0   125     24.7    22.0   112
 COTTONWOOD CREEK         7670    30.2    24.4   124     36.8    28.3   130
 GRAND TARGHEE            9260    49.6      -M      *    37.8      -M      *
 GRANITE CREEK            6770    22.4    18.4   122     24.6    20.4   121
 GRASSY LAKE              7265    40.3    36.7   110     42.0    37.0   114
 GROS VENTRE SUMMIT       8750    14.9    14.5   103     14.7    13.3   111
 GUNSIGHT PASS            9820    18.6      -M      *    17.7      -M      *
 LEWIS LAKE DIVIDE        7850    42.3    36.3   117       -M    37.8      *
 PHILLIPS BENCH           8200    33.8    29.8   113     33.8    29.9   113
 SALT RIVER SUMMIT        7760    17.9    14.9   120     22.6    19.4   116
 SNAKE RIVER STATION      6920      -M    19.0      *    27.0    22.9   118
 SPRING CREEK DIVIDE      9000    37.1    27.5   135     34.0    27.3   125
 THUMB DIVIDE             7980    22.8    19.3   118     20.7    19.5   106
 TOGWOTEE PASS            9580    29.9    25.7   116     31.5    25.4   124
 TWO OCEAN PLATEAU        9240      -M    29.1      *      -M    28.6      *
 WILLOW CREEK             8380    38.8    31.1   125     42.1    33.2   127
                                                -----                  -----
                Basin wide percent of average    119                    119


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    28.1    24.1   117     26.4    20.7   128
 BLACK BEAR               8170    49.0    40.3   122     44.7    41.6   107
 CANYON                   7870    17.7    14.0   126     19.0    15.9   119
 FISHER CREEK             9100    43.8    35.9   122     41.1    37.5   110
 MADISON PLATEAU          7750    30.7    25.8   119     32.5    27.6   118
 NORTHEAST ENTRANCE       7350    15.0    11.2   134     16.5    13.1   126
 PARKER PEAK              9400    30.6    22.3   137     26.8    16.8   160
 SYLVAN LAKE              8420    25.8    23.2   111     29.3    21.6   136
 THUMB DIVIDE             7980    22.8    19.3   118     20.7    19.5   106
 TWO OCEAN PLATEAU        9240      -M    29.1      *      -M    28.6      *
 WHISKEY CREEK            6800    21.1    17.7   119     24.2    21.6   112
 WHITE MILL               8700    30.2    25.0   121     30.2    27.8   109
 WOLVERINE                7650    15.3    11.7   131     15.3    13.2   116
                                                -----                  -----
                Basin wide percent of average    122                    118


WIND RIVER

 BURROUGHS CREEK          8750    16.0    14.9   107     16.8    16.8   100
 CASTLE CREEK             8400     6.6      -M      *     8.0      -M      *
 COLD SPRINGS             9630     8.1     8.8    92      8.5    11.1    77
 DEER PARK                9700    19.3    17.3   112     22.6    22.7   100
 HOBBS PARK              10100    15.3    15.7    97     13.5    13.4   101
 LITTLE WARM              9370    12.7    12.3   103     13.1    13.9    94
 SOUTH PASS               9040    17.6    17.2   102     15.5    19.1    81
 ST. LAWRENCE ALT         8620     4.4     7.6    58      7.5     9.2    82
 TOGWOTEE PASS            9580    29.9    25.7   116     31.5    25.4   124
 TOWNSEND CREEK           8700     9.2     9.4    98     11.7    12.1    97
                                                -----                  -----
                Basin wide percent of average    103                     98


BIGHORN BASIN

 BALD MTN.                9380    24.4    20.3   120     19.4    18.0   108
 BEAR TRAP MEADOW         8200     8.7     5.1   171      8.5     8.6    99
 BLACKWATER               9780    27.7    25.4   109     26.5    21.2   125
 BONE SPRINGS DIV         9350    21.0    16.8   125     17.4    15.1   115
 EVENING STAR             9200    34.3    30.5   112     36.5    26.1   140
 GRAVE SPRINGS            8550     9.0     9.8    92      9.2    10.1    91
 KIRWIN                   9550    12.2    11.8   103     13.3    11.6   115
 MARQUETTE                8760     3.5      -M      *     6.5    10.2    64
 MIDDLE POWDER            7760    10.4    12.4    84     11.4    12.8    89
 OWL CREEK                8975     5.5     5.8    95      6.0     6.2    97
 POWDER RIVER PASS        9480    15.9    11.2   142     18.3    12.8   143
 SHELL CREEK              9580    18.6    15.2   122     16.8    13.8   122
 SYLVAN LAKE              8420    25.8    23.2   111     29.3    21.6   136
 SYLVAN ROAD              7120    16.3    12.8   127     21.8    18.1   120
 TIMBER CREEK             7950     4.2     5.9    71      5.2     7.7    68
 YOUNTS PEAK              8350    18.6    17.6   106     16.1    16.6    97
                                                -----                  -----
                Basin wide percent of average    113                    114


SHOSHONE RIVER

 BLACKWATER               9780    27.7    25.4   109     26.5    21.2   125
 EVENING STAR             9200    34.3    30.5   112     36.5    26.1   140
 KIRWIN                   9550    12.2    11.8   103     13.3    11.6   115
 MARQUETTE                8760     3.5      -M      *     6.5    10.2    64
 SYLVAN LAKE              8420    25.8    23.2   111     29.3    21.6   136
 SYLVAN ROAD              7120    16.3    12.8   127     21.8    18.1   120
 YOUNTS PEAK              8350    18.6    17.6   106     16.1    16.6    97
                                                -----                  -----
                Basin wide percent of average    111                    120


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     8.7     5.1   171      8.5     8.6    99
 BIG GOOSE                7990     9.0    11.3    80     10.8     9.0   120
 BONE SPRINGS DIV         9350    21.0    16.8   125     17.4    15.1   115
 BURGESS JUNCTION         7880    11.5    12.2    94     12.3    12.6    98
 CLOUD PEAK RESERVOIR     9860    17.0    13.9   122     15.7    13.4   117
 DOME LAKE                8880    14.6    13.0   112     13.9    13.6   102
 GRAVE SPRINGS            8550     9.0     9.8    92      9.2    10.1    91
 HANSEN SAWMILL           8360     7.3     6.6   111      8.3     8.5    98
 LITTLE GOOSE             8870    10.3      -M      *    14.7      -M      *
 MIDDLE POWDER            7760    10.4    12.4    84     11.4    12.8    89
 POWDER RIVER PASS        9480    15.9    11.2   142     18.3    12.8   143
 SOLDIER PARK             8720     8.4      -M      *     9.7      -M      *
 SUCKER CREEK             8880    14.0    12.3   114     15.5    14.0   111
 TIE CREEK                6870     6.6     6.1   108     10.8    10.3   105
                                                -----                  -----
                Basin wide percent of average    111                    108


BELLE FOURCHE

 BLIND PARK               6890    10.3     8.3   124     17.3    11.4   152
 COLE CANYON              5910     8.1     7.0   116     12.6     6.9   183
 NORTH RAPID CREEK        6130     8.7     8.6   101     14.6     8.8   166
                                                -----                  -----
                Basin wide percent of average    113                    164


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    25.9    18.0   144     33.6    20.5   164
 COLUMBINE                9160    35.3    25.1   141     36.6    25.9   141
 DIVIDE PEAK              8880    24.2    20.4   119     29.2    21.3   137
 ELK RIVER                8700    26.4    20.0   132     27.8    20.1   138
 JOE WRIGHT              10120    34.3    22.1   155     37.2    25.5   146
 NORTH FRENCH CREEK      10130    48.4    30.5   159       -M    25.3      *
 OLD BATTLE              10000    44.7    33.1   135     46.2    35.5   130
 SAGE CREEK BASIN         7850    21.4    11.8   181     19.6    12.3   159
 SOUTH BRUSH CREEK        8440    19.6    13.3   147     23.1    16.9   137
 TOWER                   10500    58.0    47.0   123     47.1    39.4   120
 WEBBER SPRINGS           9250    32.2    26.4   122     37.5    27.4   137
 WILLOW CREEK PASS        9540    20.7    12.6   164     18.8    13.2   142
                                                -----                  -----
                Basin wide percent of average    140                    138


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    33.0    24.6   134     32.2    22.8   141
 CASPER MTN.              7900    11.4    15.2    75     14.9    15.0    99
 DEADMAN HILL            10220    21.3    17.0   125     23.0    17.4   132
 DEER PARK                9700    19.3    17.3   112     22.6    22.7   100
 LAPRELE CREEK            8375    13.4    11.0   122     14.8    13.0   114
 RENO HILL                8400    15.2    14.9   102     18.0    15.6   115
 ROACH                    9700    21.5    17.7   121     24.6    19.2   128
 SAND LAKE               10050    39.2    33.4   117       -M    24.9      *
 SOUTH PASS               9040    17.6    17.2   102     15.5    19.1    81
 WINDY PEAK               7900    10.4     8.4   124     13.6    10.9   125
                                                -----                  -----
                Basin wide percent of average    114                    115


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M    10.5      *    15.7    16.3    96
 DIVIDE PEAK              8880    24.2    20.4   119     29.2    21.3   137
 OLD BATTLE              10000    44.7    33.1   135     46.2    35.5   130
 SANDSTONE RS             8150    18.8    14.5   130     26.9    19.2   140
 WHISKEY PARK             8950      -M    30.6      *      -M    29.4      *
                                                -----                  -----
                Basin wide percent of average    129                    128


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    16.1    15.0   107     16.2    13.8   117
 BLIND BULL SUM           8650    34.9    28.6   122     23.8    22.9   104
 EAST RIM DIVIDE          7930    15.5    13.5   115     13.7    12.4   110
 ELKHART PARK G.S.        9400    14.2    13.8   103     13.9    13.8   101
 GROS VENTRE SUMMIT       8750    14.9    14.5   103     14.7    13.3   111
 GUNSIGHT PASS            9820    18.6      -M      *    17.7      -M      *
 KENDALL R.S.             7740    13.7    14.4    95     15.8    14.9   106
 LOOMIS PARK              8240    21.2    17.5   121     21.6    17.9   121
 NEW FORK LAKE            8340    13.1    11.5   114     12.1    11.7   103
 POCKET CREEK             9360    12.9      -M      *    14.9      -M      *
 SNIDER BASIN             8060    21.2    14.9   142     20.0    16.6   120
 SPRING CREEK DIVIDE      9000    37.1    27.5   135     34.0    27.3   125
 TRIPLE PEAK              8500    35.7    25.6   139     35.6    25.5   140
                                                -----                  -----
                Basin wide percent of average    121                    116


LOWER GREEN RIVER

 HAMS FORK                7840    16.8    11.5   146     15.9    12.6   126
 HEWINTA                  9519    12.5    12.4   101     18.1    15.1   120
 HICKERSON PARK           9145     7.3     8.0    91     10.4     8.2   127
 HOLE-IN-ROCK             9150     8.8     7.4   119     11.5     7.8   147
 INDIAN CREEK             9425    33.0    28.8   115     28.4    26.3   108
 KELLEY R.S.              8180    21.8    17.3   126     24.7    21.0   118
 STEEL CREEK PARK        10200    18.2    16.3   112     20.9    16.9   124
                                                -----                  -----
                Basin wide percent of average    116                    120


UPPER BEAR RIVER

 BUG LAKE                 7950    31.2    21.6   144     30.2    19.8   153
 HAYDEN FORK              9212    24.6    16.8   146     30.5    21.7   141
 KELLEY R.S.              8180    21.8    17.3   126     24.7    21.0   118
 LILY LAKE                9156    22.6    14.2   159     22.9    18.1   127
 MONTE CRISTO             8960    39.9    30.4   131     37.7    26.3   143
 SALT RIVER SUMMIT        7760    17.9    14.9   120     22.6    19.4   116
 TRIAL LAKE               9992    37.4    25.7   146     35.1    25.7   137
                                                -----                  -----
                Basin wide percent of average    139                    134

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


 -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.