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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 SUNDAY: APRIL 26 , 2009
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    10.7    14.3    75     21.6    23.8    91
 COTTONWOOD CREEK         7670    27.1    21.6   125     35.5    31.1   114
 GRAND TARGHEE            9260    50.7      -M      *    39.2      -M      *
 GRANITE CREEK            6770    13.2    14.6    90     23.4    21.9   107
 GRASSY LAKE              7265    30.9    35.3    88     38.6    40.0    97
 GROS VENTRE SUMMIT       8750      -M    14.1      *    17.5    14.8   118
 GUNSIGHT PASS            9820    15.9      -M      *    18.1      -M      *
 LEWIS LAKE DIVIDE        7850    33.4    35.9    93     36.8    40.8    90
 PHILLIPS BENCH           8200    29.5    30.4    97     33.4    32.4   103
 SALT RIVER SUMMIT        7760    13.7    12.5   110     18.8    21.1    89
 SNAKE RIVER STATION      6920    12.9    14.6    88     25.1    25.0   100
 SPRING CREEK DIVIDE      9000    31.6    28.9   109     30.7    29.6   104
 THUMB DIVIDE             7980    19.4    16.7   116     24.1    21.4   113
 TOGWOTEE PASS            9580    30.2    27.6   109     33.3    28.1   119
 TWO OCEAN PLATEAU        9240    41.8    31.6   132     32.9    31.2   105
 WILLOW CREEK             8380    33.9    31.6   107     44.5    36.6   122
                                                -----                  -----
                Basin wide percent of average    104                    105


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    25.0    25.7    97     23.4    22.8   103
 BLACK BEAR               8170    37.4    40.6    92     39.3    44.9    88
 CANYON                   7870    13.1    12.3   107     16.9    17.3    98
 FISHER CREEK             9100    38.7    37.7   103     38.7    40.9    95
 MADISON PLATEAU          7750    23.5    25.3    93     27.0    29.9    90
 NORTHEAST ENTRANCE       7350     5.5     8.4    65     15.2    14.4   106
 PARKER PEAK              9400    30.6    24.2   126     21.4    18.8   114
 SYLVAN LAKE              8420    20.4    23.9    85     26.0    24.0   108
 THUMB DIVIDE             7980    19.4    16.7   116     24.1    21.4   113
 TWO OCEAN PLATEAU        9240    41.8    31.6   132     32.9    31.2   105
 WHISKEY CREEK            6800    17.3    16.5   105     22.7    23.6    96
 WHITE MILL               8700    26.1    26.3    99     26.5    30.4    87
 WOLVERINE                7650     8.8     8.5   104     14.1    14.7    96
                                                -----                  -----
                Basin wide percent of average    103                     98


WIND RIVER

 BURROUGHS CREEK          8750    17.0    14.4   118     18.8    18.7   101
 COLD SPRINGS             9630     8.1     5.1   159     13.1    13.2    99
 DEER PARK                9700    14.3    19.5    73     20.8    25.9    80
 HOBBS PARK              10100    16.3    17.6    93     17.8    16.0   111
 LITTLE WARM              9370    11.8    11.8   100     17.0    16.1   106
 SOUTH PASS               9040    14.6    18.1    81     18.1    21.8    83
 ST. LAWRENCE ALT         8620     6.4     6.4   100     12.5    11.3   111
 TOGWOTEE PASS            9580    30.2    27.6   109     33.3    28.1   119
 TOWNSEND CREEK           8700    10.2     9.6   106     15.3    14.7   104
                                                -----                  -----
                Basin wide percent of average     99                    101


BIGHORN BASIN

 BALD MTN.                9380    19.3    22.9    84     16.9    20.5    82
 BEAR TRAP MEADOW         8200     5.4     3.0   180     10.9    10.3   106
 BLACKWATER               9780    28.3    27.9   101     26.1    23.9   109
 BONE SPRINGS DIV         9350    16.7    17.9    93     16.1    17.5    92
 EVENING STAR             9200    31.1    32.7    95     34.8    29.0   120
 GRAVE SPRINGS            8550     9.3    10.9    85     11.5    12.5    92
 KIRWIN                   9550    14.4    12.7   113     17.0    13.6   125
 MARQUETTE                8760     7.2    10.7    67     10.9    12.8    85
 MIDDLE POWDER            7760    11.4    14.2    80     11.8    15.0    79
 OWL CREEK                8975     4.0     4.1    98      8.4     7.7   109
 POWDER RIVER PASS        9480    11.4    11.2   102     16.7    15.0   111
 SHELL CREEK              9580    17.6    16.5   107     17.4    16.0   109
 SYLVAN LAKE              8420    20.4    23.9    85     26.0    24.0   108
 SYLVAN ROAD              7120     7.3     9.6    76     21.4    19.9   108
 TIMBER CREEK             7950     4.0     5.0    80     10.3     9.7   106
 YOUNTS PEAK              8350    19.4    18.1   107     18.1    18.3    99
                                                -----                  -----
                Basin wide percent of average     94                    103


SHOSHONE RIVER

 BLACKWATER               9780    28.3    27.9   101     26.1    23.9   109
 EVENING STAR             9200    31.1    32.7    95     34.8    29.0   120
 KIRWIN                   9550    14.4    12.7   113     17.0    13.6   125
 MARQUETTE                8760     7.2    10.7    67     10.9    12.8    85
 SYLVAN LAKE              8420    20.4    23.9    85     26.0    24.0   108
 SYLVAN ROAD              7120     7.3     9.6    76     21.4    19.9   108
 YOUNTS PEAK              8350    19.4    18.1   107     18.1    18.3    99
                                                -----                  -----
                Basin wide percent of average     94                    109


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     5.4     3.0   180     10.9    10.3   106
 BIG GOOSE                7990    10.7    12.3    87     15.2    12.1   126
 BONE SPRINGS DIV         9350    16.7    17.9    93     16.1    17.5    92
 BURGESS JUNCTION         7880    13.1    13.2    99     14.8    14.7   101
 CLOUD PEAK RESERVOIR     9860    19.1    15.9   120     19.7    16.1   122
 DOME LAKE                8880    12.7    13.5    94     17.9    16.0   112
 GRAVE SPRINGS            8550     9.3    10.9    85     11.5    12.5    92
 HANSEN SAWMILL           8360     4.4     5.1    86     12.1    10.3   117
 MIDDLE POWDER            7760    11.4    14.2    80     11.8    15.0    79
 POWDER RIVER PASS        9480    11.4    11.2   102     16.7    15.0   111
 SUCKER CREEK             8880    15.2    13.3   114     19.5    16.5   118
 TIE CREEK                6870     3.9     5.0    78     16.4    12.7   129
                                                -----                  -----
                Basin wide percent of average     98                    108


BELLE FOURCHE

 BLIND PARK               6890      -M     5.5      *    16.5    13.5   122
 COLE CANYON              5910     5.1     6.1    84     14.1     8.7   162
 NORTH RAPID CREEK        6130     4.1     6.4    64     16.2    10.6   153
                                                -----                  -----
                Basin wide percent of average     74                    143


UPPER N. PLATTE RIVER

 COLUMBINE                9160    22.6    22.9    99     30.5    28.4   107
 DIVIDE PEAK              8880    26.5    20.5   129     31.1    23.6   132
 ELK RIVER                8700    17.1    17.3    99     24.6    22.4   110
 JOE WRIGHT              10120    26.5    24.7   107     32.6    29.0   112
 NORTH FRENCH CREEK      10130    37.7    34.1   111     36.0    28.6   126
 OLD BATTLE              10000    39.4    36.1   109     44.7    38.8   115
 SAGE CREEK BASIN         7850    12.7    11.9   107     17.6    13.7   128
 SOUTH BRUSH CREEK        8440    10.3    12.3    84     20.3    19.3   105
 TOWER                   10500    48.5    51.5    94     47.2    43.9   108
 WEBBER SPRINGS           9250    27.1    25.9   105     34.2    30.3   113
 WILLOW CREEK PASS        9540    13.4    14.2    94     14.6    15.1    97
                                                -----                  -----
                Basin wide percent of average    104                    114


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    26.1    28.1    93     25.7    26.0    99
 CASPER MTN.              7900    14.2    17.6    81     16.9    18.5    91
 DEADMAN HILL            10220    21.9    19.3   113     22.3    20.1   111
 DEER PARK                9700    14.3    19.5    73     20.8    25.9    80
 LAPRELE CREEK            8375     9.5     8.5   112     16.1    15.6   103
 RENO HILL                8400    16.2    15.7   103     20.4    19.1   107
 ROACH                    9700    18.5    18.6    99     22.7    21.6   105
 SAND LAKE               10050    35.6    36.4    98     34.4    28.2   122
 SOUTH PASS               9040    14.6    18.1    81     18.1    21.8    83
 WINDY PEAK               7900     9.7     6.3   154     14.1    12.8   110
                                                -----                  -----
                Basin wide percent of average     96                    101


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     8.0     6.2   129     21.0    18.0   117
 DIVIDE PEAK              8880    26.5    20.5   129     31.1    23.6   132
 OLD BATTLE              10000    39.4    36.1   109     44.7    38.8   115
 SANDSTONE RS             8150    16.5    11.4   145     23.6    21.2   111
 WHISKEY PARK             8950    32.2    30.7   105     38.4    32.7   117
                                                -----                  -----
                Basin wide percent of average    117                    118


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    12.8    14.6    88     15.2    15.4    99
 BLIND BULL SUM           8650    29.7    28.5   104     23.3    24.7    94
 EAST RIM DIVIDE          7930     6.3    13.8    46     13.8    13.5   102
 ELKHART PARK G.S.        9400    14.3    13.6   105     17.3    15.4   112
 GROS VENTRE SUMMIT       8750      -M    14.1      *    17.5    14.8   118
 GUNSIGHT PASS            9820    15.9      -M      *    18.1      -M      *
 KENDALL R.S.             7740     6.7    11.8    57     15.3    16.1    95
 LOOMIS PARK              8240    13.8    15.7    88     20.9    19.4   108
 NEW FORK LAKE            8340     9.3     9.9    94     12.5    12.9    97
 SNIDER BASIN             8060    14.0    13.9   101     17.0    18.1    94
 SPRING CREEK DIVIDE      9000    31.6    28.9   109     30.7    29.6   104
 TRIPLE PEAK              8500    23.7    25.1    94     30.3    27.9   109
                                                -----                  -----
                Basin wide percent of average     92                    103


LOWER GREEN RIVER

 HAMS FORK                7840     8.4     7.7   109     14.5    14.2   102
 HEWINTA                  9519     7.7    10.8    71     16.5    17.2    96
 HICKERSON PARK           9145     5.3     7.0    76     12.7     9.7   131
 HOLE-IN-ROCK             9150     5.3     5.9    90     12.2     9.3   131
 INDIAN CREEK             9425      -M    29.3      *    25.7    28.8    89
 KELLEY R.S.              8180    15.3    15.6    98     20.8    23.0    90
 STEEL CREEK PARK        10200    16.7    18.2    92     20.0    19.6   102
                                                -----                  -----
                Basin wide percent of average     90                    100


UPPER BEAR RIVER

 BUG LAKE                 7950    18.5    20.0    92     20.8    21.8    95
 HAYDEN FORK              9212    13.9    14.8    94     26.0    24.4   107
 KELLEY R.S.              8180    15.3    15.6    98     20.8    23.0    90
 LILY LAKE                9156    13.2    12.8   103     20.7    20.5   101
 MONTE CRISTO             8960    27.8    29.6    94     30.8    29.3   105
 SALT RIVER SUMMIT        7760    13.7    12.5   110     18.8    21.1    89
 TRIAL LAKE               9992    27.3    26.6   103     27.9    28.6    98
                                                -----                  -----
                Basin wide percent of average     98                     98

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


 -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 1961-90.

Provisional data, subject to revision.