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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 24 , 2007
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     6.3    14.3    44     20.8    23.8    87
 COTTONWOOD CREEK         7600    17.1    21.6    79     24.9    30.9    81
 GRANITE CREEK            6770     6.8    14.6    47     16.4    21.9    75
 GRASSY LAKE              7265    24.4    35.0    70     36.0    39.9    90
 GROS VENTRE SUMMIT       8750    10.9    13.9    78     13.2    14.8    89
 LEWIS LAKE DIVIDE        7850    22.7    35.5    64     32.1    40.6    79
 PHILLIPS BENCH           8200    18.3    29.9    61     24.6    32.2    76
 SALT RIVER SUMMIT        7600     8.7    12.3    71     15.7    21.0    75
 SNAKE RIVER STATION      6920     5.4    14.5    37     23.3    24.8    94
 SPRING CREEK DIVIDE      9000    22.4    28.6    78     22.4    29.4    76
 THUMB DIVIDE             7980     9.7    16.6    58     17.0    21.3    80
 TOGWOTEE PASS            9580    19.8    27.4    72     22.6    28.0    81
 TWO OCEAN PLATEAU        9240    28.5    31.3    91     25.0    31.1    80
 WILLOW CREEK             8450    22.5    31.2    72     33.1    36.5    91
                                                -----                  -----
                Basin wide percent of average     68                     83


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9275    22.0    25.7    86     21.3    22.8    93
 BLACK BEAR               8170    32.2    40.3    80     36.9    44.7    83
 CANYON                   8090    12.0    12.4    97     17.3    17.2   101
 FISHER CREEK             9100    33.2    37.4    89     33.3    40.7    82
 MADISON PLATEAU          7750    18.2    25.0    73     24.2    29.6    82
 NORTHEAST ENTRANCE       7350      .0     8.7     0     14.6    14.3   102
 PARKER PEAK              9400    22.6    24.0    94     20.7    18.8   110
 SYLVAN LAKE              8420    16.2    24.0    68     24.4    23.9   102
 THUMB DIVIDE             7980     9.7    16.6    58     17.0    21.3    80
 TWO OCEAN PLATEAU        9240    28.5    31.3    91     25.0    31.1    80
 WHISKEY CREEK            6800    10.7    16.3    66     19.0    23.5    81
 WHITE MILL               8700    21.7    26.2    83     22.5    30.3    74
 WOLVERINE                7650      .0     8.9     0     12.7    14.7    86
                                                -----                  -----
                Basin wide percent of average     76                     87


WIND RIVER

 BURROUGHS CREEK          8750    12.9    14.3    90     15.0    18.6    81
 COLD SPRINGS             9630     1.0     5.8    17     10.1    13.2    77
 DEER PARK                9700    12.9    17.9    72     17.3    25.9    67
 HOBBS PARK              10100    13.9    17.5    79     14.5    16.0    91
 LITTLE WARM              9370     8.9    11.7    76     11.6    16.0    72
 SOUTH PASS               9040    11.8    17.9    66     14.9    21.7    69
 ST. LAWRENCE ALT         8620     2.9     6.6    44     10.2    11.4    89
 TOGWOTEE PASS            9580    19.8    27.4    72     22.6    28.0    81
 TOWNSEND CREEK           8700     6.5     9.4    69     11.9    14.6    82
                                                -----                  -----
                Basin wide percent of average     71                     77


BIGHORN BASIN

 BALD MTN.                9380    22.6    22.9    99     17.6    20.4    86
 BEAR TRAP MEADOW         8200     4.1     3.5   117     11.1    10.3   108
 BLACKWATER               9780    23.0    28.0    82     22.0    23.8    92
 BONE SPRINGS DIV         9350    19.6    18.0   109     18.7    17.5   107
 EVENING STAR             9200    23.4    32.7    72     29.4    28.9   102
 GRAVE SPRINGS            8550     7.9    10.9    72      9.2    12.3    75
 KIRWIN                   9550    11.8    12.7    93     14.0    13.5   104
 MARQUETTE                8760     5.0    11.0    45     12.1    12.8    95
 MIDDLE POWDER            7760    13.0    14.2    92     10.9    15.0    73
 OWL CREEK                8975     2.0     4.5    44      8.3     7.7   108
 POWDER RIVER PASS        9480    10.2    11.2    91     14.2    15.0    95
 SHELL CREEK              9580    17.6    16.5   107     14.6    16.0    91
 SYLVAN LAKE              8420    16.2    24.0    68     24.4    23.9   102
 SYLVAN ROAD              7120     4.6     9.8    47     17.7    19.9    89
 TIMBER CREEK             7950     4.0     5.2    77     10.2     9.8   104
 YOUNTS PEAK              8350    11.6    18.1    64     14.9    18.2    82
                                                -----                  -----
                Basin wide percent of average     81                     94


SHOSHONE RIVER

 BLACKWATER               9780    23.0    28.0    82     22.0    23.8    92
 EVENING STAR             9200    23.4    32.7    72     29.4    28.9   102
 KIRWIN                   9550    11.8    12.7    93     14.0    13.5   104
 MARQUETTE                8760     5.0    11.0    45     12.1    12.8    95
 SYLVAN LAKE              8420    16.2    24.0    68     24.4    23.9   102
 SYLVAN ROAD              7120     4.6     9.8    47     17.7    19.9    89
 YOUNTS PEAK              8350    11.6    18.1    64     14.9    18.2    82
                                                -----                  -----
                Basin wide percent of average     70                     95


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     4.1     3.5   117     11.1    10.3   108
 BIG GOOSE                7990    10.1    11.9    85     13.2    11.9   111
 BONE SPRINGS DIV         9350    19.6    18.0   109     18.7    17.5   107
 BURGESS JUNCTION         7880    13.8    13.3   104     15.3    14.7   104
 CLOUD PEAK RESERVOIR     9860    16.3    15.8   103     15.4    16.1    96
 DOME LAKE                8880    13.4    13.7    98     16.4    16.0   102
 GRAVE SPRINGS            8550     7.9    10.9    72      9.2    12.3    75
 HANSEN SAWMILL           8360     4.8     5.5    87     10.8    10.3   105
 MIDDLE POWDER            7760    13.0    14.2    92     10.9    15.0    73
 POWDER RIVER PASS        9480    10.2    11.2    91     14.2    15.0    95
 SUCKER CREEK             8880    14.7    13.3   111     17.8    16.5   108
 TIE CREEK                6870     2.1     4.5    47     13.4    12.7   106
                                                -----                  -----
                Basin wide percent of average     96                     99


BELLE FOURCHE

 BLIND PARK               6890      .3     5.6     5     11.2    13.5    83
 COLE CANYON              5910      .0     5.5     0     10.3      -M      *
 NORTH RAPID CREEK        6130     1.6     6.0    27      9.8    10.7    92
                                                -----                  -----
                Basin wide percent of average     11                     87


UPPER N. PLATTE RIVER

 COLUMBINE                9160    10.2    22.6    45     23.4    28.3    83
 DIVIDE PEAK              8860    15.6    20.0    78     21.1    23.5    90
 ELK RIVER                8700     7.2    17.0    42     19.4    22.2    87
 JOE WRIGHT              10120    22.7    24.4    93     25.1    28.9    87
 NORTH FRENCH CREEK      10130    27.6    33.7    82     27.1    28.6    95
 OLD BATTLE               9920    26.1    35.9    73     30.5    38.7    79
 SAGE CREEK BASIN         7850      .1    11.6     1     13.5    13.6    99
 SOUTH BRUSH CREEK        8440     4.7    12.1    39     15.6    19.2    81
 TOWER                   10500    32.8    51.0    64     35.6    43.6    82
 WEBBER SPRINGS           9250    15.6    25.5    61     24.8    30.1    82
 WILLOW CREEK PASS        9540    16.5    13.9   119     14.9    15.0    99
                                                -----                  -----
                Basin wide percent of average     67                     86


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10220    22.1    27.5    80     22.5    25.9    87
 CASPER MTN.              7850    11.0    17.0    65     14.2    18.3    78
 DEADMAN HILL            10220    13.7    19.1    72     20.1    20.1   100
 DEER PARK                9700    12.9    17.9    72     17.3    25.9    67
 LAPRELE CREEK            8375     4.5     8.5    53     12.0    15.6    77
 RENO HILL                8500    13.4    15.2    88     17.6    19.0    93
 ROACH                    9700    18.4    18.5    99     21.5    21.5   100
 SAND LAKE               10050    28.3    36.1    78     27.9    28.1    99
 SOUTH PASS               9040    11.8    17.9    66     14.9    21.7    69
 WINDY PEAK               7900     4.2     6.3    67     11.6    12.8    91
                                                -----                  -----
                Basin wide percent of average     76                     86


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .1     6.4     2     14.4    18.0    80
 DIVIDE PEAK              8860    15.6    20.0    78     21.1    23.5    90
 OLD BATTLE               9920    26.1    35.9    73     30.5    38.7    79
 SANDSTONE RS             8150     2.7    11.2    24     16.6    21.2    78
 WHISKEY PARK             8950    19.0    30.6    62     25.9    32.6    79
                                                -----                  -----
                Basin wide percent of average     61                     81


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    10.5    14.3    73     11.8    15.3    77
 BLIND BULL SUM           8900    24.2    28.3    86     19.0    24.6    77
 EAST RIM DIVIDE          7930     1.3    13.5    10     10.4    13.5    77
 ELKHART PARK G.S.        9400    11.7    13.3    88     13.7    15.4    89
 GROS VENTRE SUMMIT       8750    10.9    13.9    78     13.2    14.8    89
 KENDALL R.S.             7740     4.5    11.6    39     13.3    16.2    82
 LOOMIS PARK              8240     6.8    15.5    44     15.7    19.4    81
 NEW FORK LAKE            8340     7.1     9.7    73     10.0    12.9    78
 SNIDER BASIN             8060     9.7    13.6    71     13.1    18.0    73
 SPRING CREEK DIVIDE      9000    22.4    28.6    78     22.4    29.4    76
 TRIPLE PEAK              8500    19.7    24.7    80     25.5    27.8    92
                                                -----                  -----
                Basin wide percent of average     69                     81


LOWER GREEN RIVER

 HAMS FORK                7840     1.2     7.8    15     11.2    14.1    79
 HEWINTA                  9500     1.3    10.6    12     14.3    17.1    84
 HICKERSON PARK           9100     4.2     6.8    62     11.9     9.7   123
 HOLE-IN-ROCK             9150     4.0     5.8    69     10.7     9.2   116
 INDIAN CREEK             9425    19.6    28.9    68     19.6    28.6    69
 KELLEY R.S.              8180    11.6    15.5    75     17.2    22.9    75
 STEEL CREEK PARK        10100    14.6    18.0    81     14.8    19.3    77
                                                -----                  -----
                Basin wide percent of average     60                     82


UPPER BEAR RIVER

 BUG LAKE                 7950    12.1    19.6    62     16.5    21.7    76
 HAYDEN FORK              9100      .2    14.5     1     21.2    24.2    88
 KELLEY R.S.              8180    11.6    15.5    75     17.2    22.9    75
 LILY LAKE                9050     6.3    12.6    50     15.8    20.3    78
 MONTE CRISTO             8960    18.3    29.3    62     23.5    29.2    80
 SALT RIVER SUMMIT        7600     8.7    12.3    71     15.7    21.0    75
 TRIAL LAKE               9960    16.7    26.5    63     22.0    28.4    77
                                                -----                  -----
                Basin wide percent of average     57                     79

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


 -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.