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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 SATURDAY: MARCH 31 , 2012
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    18.8    18.1   104     24.0    21.6   111
 BLACK BEAR               8170    41.5    39.6   105     41.4    40.7   102
 BLIND BULL SUM           8650    22.9    28.2    81     17.3    22.4    77
 COTTONWOOD CREEK         7670    18.8    24.1    78     24.4    27.6    88
 EAST RIM DIVIDE          7930     9.9    13.2    75     11.6    12.1    96
 GRAND TARGHEE            9260    37.4      -M      *    29.6      -M      *
 GRANITE CREEK            6770    14.0    18.7    75     16.5    20.1    82
 GRASSY LAKE              7265    33.7    36.0    94     38.5    36.2   106
 GROS VENTRE SUMMIT       8750     9.3    14.3    65     10.5    13.0    81
 GUNSIGHT PASS            9820    12.6      -M      *    14.3      -M      *
 LEWIS LAKE DIVIDE        7850    33.2    35.7    93     35.1    37.0    95
 PHILLIPS BENCH           8200    24.7    29.1    85     25.6    29.2    88
 SALT RIVER SUMMIT        7760    10.1    14.6    69     11.6    18.9    61
 SNAKE RIVER STATION      6920    16.6    19.2    86     25.0    22.4   112
 SPRING CREEK DIVIDE      9000    22.8    26.8    85     22.4    26.6    84
 THUMB DIVIDE             7980    17.3    19.2    90     18.6    19.0    98
 TOGWOTEE PASS            9580    21.8    25.0    87     24.0    24.7    97
 TWO OCEAN PLATEAU        9240    32.8    28.2   116     27.8    27.9   100
 WILLOW CREEK             8380    25.0    30.5    82     31.8    32.4    98
 YOUNTS PEAK              8350    16.2    17.2    94     15.7    16.2    97
                                                -----                  -----
                Basin wide percent of average     89                     94


MADISON-GALLATIN

 BLACK BEAR               8170    41.5    39.6   105     41.4    40.7   102
 CANYON                   7870    12.5    13.9    90     14.8    15.5    95
 MADISON PLATEAU          7750    26.1    25.4   103     30.5    26.9   113
 WEST YELLOWSTONE         6700    10.1    12.8    79     17.2    13.2   130
 WHISKEY CREEK            6800    16.7    17.4    96     22.7    21.1   108
                                                -----                  -----
                Basin wide percent of average     98                    108


YELLOWSTONE

 BEARTOOTH LAKE           9360    24.7    23.5   105     24.0    20.2   119
 BURNT MTN                5880      .4     6.2     6     11.3    15.2    74
 CANYON                   7870    12.5    13.9    90     14.8    15.5    95
 COLE CREEK               7850    13.6    16.2    84     11.3    16.5    68
 EVENING STAR             9200    29.3    30.0    98     31.6    25.4   124
 FISHER CREEK             9100    36.3    35.3   103     34.3    36.6    94
 NORTHEAST ENTRANCE       7350     8.6    11.3    76       -M    12.7      *
 PARKER PEAK              9400    23.8    21.8   109     23.0    16.3   141
 SYLVAN LAKE              8420    18.7    22.7    82     24.7    21.0   118
 THUMB DIVIDE             7980    17.3    19.2    90     18.6    19.0    98
 TWO OCEAN PLATEAU        9240    32.8    28.2   116     27.8    27.9   100
 WHITE MILL               8700    23.0    24.5    94     23.8    27.2    88
 WOLVERINE                7650    10.0    11.6    86     13.1    12.8   102
                                                -----                  -----
                Basin wide percent of average     95                    102


WIND RIVER

 BURROUGHS CREEK          8750    13.9    14.8    94     14.3    16.3    88
 CASTLE CREEK             8400     6.1      -M      *     8.7      -M      *
 COLD SPRINGS             9630     6.1     9.0    68      9.2    10.6    87
 DEER PARK                9700    10.9    17.0    64     17.2    21.9    79
 HOBBS PARK              10100    13.8    15.0    92     13.0    12.8   102
 KIRWIN                   9550    12.2    11.4   107     14.1    11.2   126
 LITTLE WARM              9370     8.4    12.0    70     11.3    13.4    84
 OWL CREEK                8975     2.1     5.6    38      5.7     5.8    98
 SOUTH PASS               9040    13.1    16.7    78     13.3    18.5    72
 ST. LAWRENCE ALT         8620      .4     7.4     5      7.4     8.8    84
 TOGWOTEE PASS            9580    21.8    25.0    87     24.0    24.7    97
 TOWNSEND CREEK           8700     7.0     8.7    80     11.0    11.6    95
                                                -----                  -----
                Basin wide percent of average     77                     90


BIGHORN BASIN

 BALD MTN.                9380    20.4    19.7   104     15.4    17.4    89
 BEAR TRAP MEADOW         8200     5.6     5.2   108      8.8     8.2   107
 BONE SPRINGS DIV         9350    18.7    16.3   115     15.4    14.6   105
 GRAVE SPRINGS            8550     7.6     9.4    81     10.2     9.6   106
 KIRWIN                   9550    12.2    11.4   107     14.1    11.2   126
 MARQUETTE                8760     7.9      -M      *    11.6     9.7   120
 MIDDLE POWDER            7760     9.8    11.8    83     10.6    12.3    86
 OWL CREEK                8975     2.1     5.6    38      5.7     5.8    98
 POWDER RIVER PASS        9480    10.8    10.9    99     15.0    12.3   122
 SHELL CREEK              9580    18.0    14.8   122     15.6    13.3   117
 TIMBER CREEK             7950      .9     5.8    16      8.7     7.3   119
                                                -----                  -----
                Basin wide percent of average     96                    108


SHOSHONE RIVER

 BLACKWATER               9780    24.5    24.8    99     24.0    20.6   117
 EVENING STAR             9200    29.3    30.0    98     31.6    25.4   124
 MARQUETTE                8760     7.9      -M      *    11.6     9.7   120
 SYLVAN ROAD              7120     9.8    12.9    76     17.7    17.7   100
 YOUNTS PEAK              8350    16.2    17.2    94     15.7    16.2    97
                                                -----                  -----
                Basin wide percent of average     94                    112


POWDER RIVER

 BEAR TRAP MEADOW         8200     5.6     5.2   108      8.8     8.2   107
 CLOUD PEAK RESERVOIR     9860    13.9    13.4   104     14.9    12.8   116
 GRAVE SPRINGS            8550     7.6     9.4    81     10.2     9.6   106
 HANSEN SAWMILL           8360     2.1     6.4    33      8.4     8.1   104
 MIDDLE POWDER            7760     9.8    11.8    83     10.6    12.3    86
 POWDER RIVER PASS        9480    10.8    10.9    99     15.0    12.3   122
 SOLDIER PARK             8720     9.8      -M      *     9.8      -M      *
                                                -----                  -----
                Basin wide percent of average     87                    107


TONGUE RIVER

 BIG GOOSE                7990     8.3    10.6    78     13.6     8.4   162
 BONE SPRINGS DIV         9350    18.7    16.3   115     15.4    14.6   105
 BURGESS JUNCTION         7880    11.4    11.7    97     13.9    12.1   115
 DOME LAKE                8880    12.7    12.4   102     14.3    13.1   109
 LITTLE GOOSE             8870     8.3      -M      *    15.6      -M      *
 SUCKER CREEK             8880    11.9    11.8   101     14.7    13.5   109
 TIE CREEK                6870      .3     5.9     5     13.4     9.8   137
                                                -----                  -----
                Basin wide percent of average     92                    119


BELLE FOURCHE

 COLE CANYON              5910      -M     6.8      *     8.2     6.7   122
                                                -----                  -----
                Basin wide percent of average       *                   122


CHEYENNE RIVER BASIN

 BLIND PARK               6890      .3     8.7     3     10.3    11.0    94
 NORTH RAPID CREEK        6130      .6     8.2     7      8.0     8.6    93
                                                -----                  -----
                Basin wide percent of average      5                     93


UPPER N. PLATTE

 ARAPAHO RIDGE           10960    15.1    22.8    66     16.6    26.7    62
 BLACKHALL MTN            9820    21.1      -M      *    23.1      -M      *
 COLUMBINE                9160    12.7    25.0    51     19.5    25.2    77
 DIVIDE PEAK              8880    11.0    19.9    55     18.7    20.7    90
 JOE WRIGHT              10120    11.9    21.3    56     18.5    24.7    75
 LAPRELE CREEK            8375     6.9    10.9    63     11.6    12.5    93
 NORTH FRENCH CREEK      10130    17.9    29.3    61     19.2    24.6    78
 NEVER SUMMER            10280    11.3    20.2    56     10.9    23.5    46
 OLD BATTLE              10000    22.4    32.3    69     26.8    34.6    77
 RAWAH                    9020     3.7    15.0    25     10.9    16.4    66
 SAGE CREEK BASIN         7850     4.5    11.5    39     10.1    12.0    84
 SAND LAKE               10050    22.7    32.5    70     22.7    24.0    95
 SOUTH BRUSH CREEK        8440      -M    13.1      *    11.7    16.3    72
 TOWER                   10500    28.3    45.6    62     30.7    38.4    80
 WEBBER SPRINGS           9250    14.6    26.3    56     20.9    26.7    78
 WILLOW CREEK PASS        9540      -M    12.0      *     9.2    12.8    72
 ZIRKEL                   9340    18.1    25.8    70     24.2    26.0    93
                                                -----                  -----
                Basin wide percent of average     59                     77


SWEETWATER

 DEER PARK                9700    10.9    17.0    64     17.2    21.9    79
 LARSEN CREEK             9000    10.4      -M      *    13.8      -M      *
 SOUTH PASS               9040    13.1    16.7    78     13.3    18.5    72
                                                -----                  -----
                Basin wide percent of average     71                     75


LOWER N. PLATTE

 CASPER MTN.              7900    16.4    14.4   114     17.5    14.3   122
 LAPRELE CREEK            8375     6.9    10.9    63     11.6    12.5    93
 RENO HILL                8400    14.1    14.2    99     17.2    14.8   116
 WINDY PEAK               7900     5.1     8.1    63      8.6    10.5    82
                                                -----                  -----
                Basin wide percent of average     89                    105


LARAMIE RIVER

 BROOKLYN LAKE           10240    15.7    23.7    66     18.6    22.0    85
 CINNABAR PARK            9574    13.0    17.8    73     19.2    20.0    96
 CROW CREEK               8330     3.6     8.9    40     10.1     9.9   102
 DEADMAN HILL            10220    15.6    16.3    96     15.0    16.8    89
 RAWAH                    9020     3.7    15.0    25     10.9    16.4    66
 ROACH                    9700    11.8    17.0    69     15.8    18.6    85
                                                -----                  -----
                Basin wide percent of average     64                     86


S. PLATTE

 BLACK MOUNTAIN           8920     9.2      -M      *    12.2      -M      *
 CROW CREEK               8330     3.6     8.9    40     10.1     9.9   102
 DEADMAN HILL            10220    15.6    16.3    96     15.0    16.8    89
                                                -----                  -----
                Basin wide percent of average     76                     94


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     4.3    11.1    39     11.8    15.8    75
 DIVIDE PEAK              8880    11.0    19.9    55     18.7    20.7    90
 ELK RIVER                8700     8.6    19.5    44     15.4    19.6    79
 LITTLE SNAKE RIVER       8915    14.5      -M      *    23.9      -M      *
 OLD BATTLE              10000    22.4    32.3    69     26.8    34.6    77
 SAGE CREEK BASIN         7850     4.5    11.5    39     10.1    12.0    84
 SANDSTONE RS             8150     5.7    14.9    38     11.9    18.7    64
 WHISKEY PARK             8950    17.3    30.3    57     23.7    28.7    83
                                                -----                  -----
                Basin wide percent of average     53                     79


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    13.6    14.6    93     13.6    13.4   101
 BLIND BULL SUM           8650    22.9    28.2    81     17.3    22.4    77
 EAST RIM DIVIDE          7930     9.9    13.2    75     11.6    12.1    96
 ELKHART PARK G.S.        9400    13.9    13.5   103     15.1    13.4   113
 GROS VENTRE SUMMIT       8750     9.3    14.3    65     10.5    13.0    81
 GUNSIGHT PASS            9820    12.6      -M      *    14.3      -M      *
 KENDALL R.S.             7740    13.2    14.6    90     14.9    14.7   101
 LOOMIS PARK              8240    13.2    17.5    75     16.5    17.5    94
 NEW FORK LAKE            8340    10.6    11.3    94     10.7    11.4    94
 POCKET CREEK             9360    10.3      -M      *    12.3      -M      *
 SNIDER BASIN             8060    12.1    14.7    82     13.1    16.2    81
 SPRING CREEK DIVIDE      9000    22.8    26.8    85     22.4    26.6    84
 TRIPLE PEAK              8500    21.2    25.1    84     24.9    24.9   100
                                                -----                  -----
                Basin wide percent of average     84                     92


LOWER GREEN RIVER

 BLACKS FORK JCT          8870     2.8      -M      *    10.7      -M      *
 BUCK PASTURE             9700      .1      -M      *     4.0      -M      *
 EF BLACKS FORK GS        9308     6.3      -M      *     9.2      -M      *
 HAMS FORK                7840     7.9    12.1    65      9.7    12.3    79
 HEWINTA                  9519     7.0    12.0    58     12.5    14.6    86
 HICKERSON PARK           9145     5.4     7.6    71     12.1     7.9   153
 HOLE-IN-ROCK             9150     6.2     7.1    87     12.0     7.4   162
 INDIAN CREEK             9425    20.2    28.1    72     17.9    25.6    70
 KELLEY R.S.              8180    12.9    17.0    76     15.2    20.4    75
 SPIRIT LK               10223    10.9      -M      *    17.5      -M      *
 STEEL CREEK PARK        10200    10.1    15.8    64     14.3    16.2    88
                                                -----                  -----
                Basin wide percent of average     70                     90


UPPER BEAR RIVER

 BEAR RIVER RS            8500     2.0      -M      *    10.1      -M      *
 BUG LAKE                 7950    14.5    21.1    69     15.7    19.4    81
 BURTS MILLER RANCH       8000     1.5      -M      *     9.9      -M      *
 CHALK CREEK #1           8993    14.8    24.8    60     18.5    25.2    73
 HAYDEN FORK              9212     7.9    16.5    48     17.5    21.0    83
 KELLEY R.S.              8180    12.9    17.0    76     15.2    20.4    75
 LILY LAKE                9156     8.4    13.3    63     12.0    17.5    69
 MONTE CRISTO             8960    17.2    30.0    57     18.8    25.6    73
 SALT RIVER SUMMIT        7760    10.1    14.6    69     11.6    18.9    61
                                                -----                  -----
                Basin wide percent of average     62                     74

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


 -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.