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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 WEDNESDAY: APRIL 29 , 2009
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    10.4    13.3    78     22.0    24.1    91
 COTTONWOOD CREEK         7670    27.5    20.7   133     36.1    31.5   115
 GRAND TARGHEE            9260    51.9      -M      *    39.8      -M      *
 GRANITE CREEK            6770    12.7    13.8    92     23.6    22.1   107
 GRASSY LAKE              7265    31.4    34.4    91     39.2    40.5    97
 GROS VENTRE SUMMIT       8750    13.9    13.7   101     18.0    15.0   120
 GUNSIGHT PASS            9820    16.8      -M      *    19.2      -M      *
 LEWIS LAKE DIVIDE        7850    34.4    35.3    97     37.7    41.2    92
 PHILLIPS BENCH           8200    30.3    30.0   101     33.8    32.7   103
 SALT RIVER SUMMIT        7760    13.8    11.6   119     19.2    21.4    90
 SNAKE RIVER STATION      6920    12.5    13.4    93     25.7    25.2   102
 SPRING CREEK DIVIDE      9000    32.1    28.8   111     31.2    29.9   104
 THUMB DIVIDE             7980    20.2    15.9   127     25.0    21.7   115
 TOGWOTEE PASS            9580    31.0    27.8   112     34.0    28.6   119
 TWO OCEAN PLATEAU        9240    43.4    31.7   137     33.9    31.7   107
 WILLOW CREEK             8380    34.8    31.2   112     45.5    37.1   123
                                                -----                  -----
                Basin wide percent of average    108                    106


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    25.8    25.9   100     23.9    23.2   103
 BLACK BEAR               8170    39.3    40.5    97     40.8    45.4    90
 CANYON                   7870    14.5    11.9   122     18.3    17.5   105
 FISHER CREEK             9100    39.4    37.8   104     39.6    41.4    96
 MADISON PLATEAU          7750    25.3    24.9   102     28.9    30.1    96
 NORTHEAST ENTRANCE       7350     5.5     7.8    71     15.6    14.6   107
 PARKER PEAK              9400    31.1    24.4   127     21.9    19.2   114
 SYLVAN LAKE              8420    21.6    24.0    90     27.3    24.3   112
 THUMB DIVIDE             7980    20.2    15.9   127     25.0    21.7   115
 TWO OCEAN PLATEAU        9240    43.4    31.7   137     33.9    31.7   107
 WHISKEY CREEK            6800    18.6    15.9   117     24.0    23.9   100
 WHITE MILL               8700    26.8    26.4   102     27.2    30.8    88
 WOLVERINE                7650     9.1     7.8   117     14.6    14.9    98
                                                -----                  -----
                Basin wide percent of average    109                    101


WIND RIVER

 BURROUGHS CREEK          8750    18.1    14.1   128     19.9    19.0   105
 COLD SPRINGS             9630     9.7     4.8   202     14.8    13.6   109
 DEER PARK                9700    15.3    19.1    80     21.8    26.5    82
 HOBBS PARK              10100    18.5    18.0   103     20.0    16.5   121
 LITTLE WARM              9370    13.4    11.5   117     18.5    16.4   113
 SOUTH PASS               9040    15.7    18.2    86     19.4    22.2    87
 ST. LAWRENCE ALT         8620     8.2     6.4   128     14.3    11.7   122
 TOGWOTEE PASS            9580    31.0    27.8   112     34.0    28.6   119
 TOWNSEND CREEK           8700    11.8     9.6   123     17.1    15.1   113
                                                -----                  -----
                Basin wide percent of average    109                    106


BIGHORN BASIN

 BALD MTN.                9380    19.5    23.4    83     17.2    20.9    82
 BEAR TRAP MEADOW         8200     5.4     2.8   193     11.1    10.6   105
 BLACKWATER               9780    29.3    28.4   103     27.0    24.3   111
 BONE SPRINGS DIV         9350    17.2    18.2    95     16.5    17.9    92
 EVENING STAR             9200    31.8    33.0    96     35.3    29.5   120
 GRAVE SPRINGS            8550     9.6    11.0    87     11.9    12.8    93
 KIRWIN                   9550    15.2    13.0   117     17.8    13.9   128
 MARQUETTE                8760     8.6    11.1    77     12.1    13.3    91
 MIDDLE POWDER            7760    11.7    14.6    80     12.1    15.4    79
 OWL CREEK                8975     5.0     4.0   125      9.4     7.9   119
 POWDER RIVER PASS        9480    11.7    11.1   105     17.2    15.4   112
 SHELL CREEK              9580    17.7    16.8   105     17.5    16.4   107
 SYLVAN LAKE              8420    21.6    24.0    90     27.3    24.3   112
 SYLVAN ROAD              7120     7.0     8.9    79     21.8    20.2   108
 TIMBER CREEK             7950     4.8     4.9    98     11.2    10.1   111
 YOUNTS PEAK              8350    20.1    18.2   110     18.8    18.5   102
                                                -----                  -----
                Basin wide percent of average     97                    105


SHOSHONE RIVER

 BLACKWATER               9780    29.3    28.4   103     27.0    24.3   111
 EVENING STAR             9200    31.8    33.0    96     35.3    29.5   120
 KIRWIN                   9550    15.2    13.0   117     17.8    13.9   128
 MARQUETTE                8760     8.6    11.1    77     12.1    13.3    91
 SYLVAN LAKE              8420    21.6    24.0    90     27.3    24.3   112
 SYLVAN ROAD              7120     7.0     8.9    79     21.8    20.2   108
 YOUNTS PEAK              8350    20.1    18.2   110     18.8    18.5   102
                                                -----                  -----
                Basin wide percent of average     98                    111


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     5.4     2.8   193     11.1    10.6   105
 BIG GOOSE                7990    10.9    12.0    91     15.5    12.5   124
 BONE SPRINGS DIV         9350    17.2    18.2    95     16.5    17.9    92
 BURGESS JUNCTION         7880    13.2    13.4    99     15.0    15.1    99
 CLOUD PEAK RESERVOIR     9860    19.0    16.3   117     20.2    16.6   122
 DOME LAKE                8880    12.6    13.8    91     18.1    16.4   110
 GRAVE SPRINGS            8550     9.6    11.0    87     11.9    12.8    93
 HANSEN SAWMILL           8360     3.7     5.1    73     12.1    10.7   113
 MIDDLE POWDER            7760    11.7    14.6    80     12.1    15.4    79
 POWDER RIVER PASS        9480    11.7    11.1   105     17.2    15.4   112
 SUCKER CREEK             8880    15.8    13.4   118     20.1    17.0   118
 TIE CREEK                6870     4.1     4.5    91     16.9    13.1   129
                                                -----                  -----
                Basin wide percent of average     99                    108


BELLE FOURCHE

 BLIND PARK               6890      -M     4.8      *    17.1    13.8   124
 COLE CANYON              5910     5.5     5.6    98     14.8     9.1   163
 NORTH RAPID CREEK        6130     4.0     5.1    78     16.9    11.0   154
                                                -----                  -----
                Basin wide percent of average     89                    144


UPPER N. PLATTE RIVER

 COLUMBINE                9160    21.7    22.0    99     31.2    28.8   108
 DIVIDE PEAK              8880    26.9    20.0   134     32.1    23.9   134
 ELK RIVER                8700    15.9    16.2    98     25.1    22.7   111
 JOE WRIGHT              10120    26.8    25.0   107     33.1    29.5   112
 NORTH FRENCH CREEK      10130    38.8    34.3   113     37.3    29.1   128
 OLD BATTLE              10000    39.9    36.5   109     45.8    39.4   116
 SAGE CREEK BASIN         7850    12.7    11.6   109     18.4    13.9   132
 SOUTH BRUSH CREEK        8440    10.7    11.7    91     21.3    19.7   108
 TOWER                   10500    49.6    51.9    96     48.4    44.5   109
 WEBBER SPRINGS           9250    26.7    25.6   104     34.8    30.7   113
 WILLOW CREEK PASS        9540    13.9    14.3    97     15.1    15.4    98
                                                -----                  -----
                Basin wide percent of average    105                    115


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    26.3    28.3    93     26.3    26.5    99
 CASPER MTN.              7900    14.9    17.5    85     17.5    19.0    92
 DEADMAN HILL            10220    22.4    19.5   115     22.7    20.5   111
 DEER PARK                9700    15.3    19.1    80     21.8    26.5    82
 LAPRELE CREEK            8375     9.5     7.8   122     16.5    16.0   103
 RENO HILL                8400    16.2    15.3   106     21.2    19.7   108
 ROACH                    9700    18.8    18.7   101     23.3    22.0   106
 SAND LAKE               10050    36.2    36.8    98     35.2    28.8   122
 SOUTH PASS               9040    15.7    18.2    86     19.4    22.2    87
 WINDY PEAK               7900     9.6     5.7   168     14.5    13.2   110
                                                -----                  -----
                Basin wide percent of average     99                    102


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     7.2     5.4   133     21.8    18.3   119
 DIVIDE PEAK              8880    26.9    20.0   134     32.1    23.9   134
 OLD BATTLE              10000    39.9    36.5   109     45.8    39.4   116
 SANDSTONE RS             8150    16.2    10.5   154     24.2    21.6   112
 WHISKEY PARK             8950    32.8    30.7   107     39.1    33.3   117
                                                -----                  -----
                Basin wide percent of average    119                    119


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    13.0    14.1    92     15.5    15.6    99
 BLIND BULL SUM           8650    30.0    28.2   106     23.5    24.9    94
 EAST RIM DIVIDE          7930     5.7    13.6    42     14.0    13.7   102
 ELKHART PARK G.S.        9400    13.9    13.3   105     17.6    15.7   112
 GROS VENTRE SUMMIT       8750    13.9    13.7   101     18.0    15.0   120
 GUNSIGHT PASS            9820    16.8      -M      *    19.2      -M      *
 KENDALL R.S.             7740     6.6    10.9    61     16.0    16.4    98
 LOOMIS PARK              8240    13.4    15.0    89     21.1    19.7   107
 NEW FORK LAKE            8340     9.2     9.2   100     12.8    13.2    97
 SNIDER BASIN             8060    13.6    13.3   102     17.2    18.3    94
 SPRING CREEK DIVIDE      9000    32.1    28.8   111     31.2    29.9   104
 TRIPLE PEAK              8500    23.8    24.5    97     30.8    28.3   109
                                                -----                  -----
                Basin wide percent of average     95                    103


LOWER GREEN RIVER

 HAMS FORK                7840     7.4     6.9   107     14.7    14.5   101
 HEWINTA                  9519     7.4    10.1    73     16.6    17.5    95
 HICKERSON PARK           9145     5.2     6.4    81     13.1    10.0   131
 HOLE-IN-ROCK             9150     5.3     5.4    98     12.5     9.5   132
 INDIAN CREEK             9425      -M    28.9      *    26.0    29.1    89
 KELLEY R.S.              8180    15.0    14.9   101     21.0    23.3    90
 STEEL CREEK PARK        10200    16.8    18.4    91     20.3    19.9   102
                                                -----                  -----
                Basin wide percent of average     92                    100


UPPER BEAR RIVER

 BUG LAKE                 7950    18.3    19.1    96     21.0    22.1    95
 HAYDEN FORK              9212    13.1    13.9    94     26.3    24.8   106
 KELLEY R.S.              8180    15.0    14.9   101     21.0    23.3    90
 LILY LAKE                9156    13.0    12.0   108     20.9    20.8   100
 MONTE CRISTO             8960    27.7    29.0    96     31.1    29.8   104
 SALT RIVER SUMMIT        7760    13.8    11.6   119     19.2    21.4    90
 TRIAL LAKE               9992    26.7    26.6   100     28.1    29.0    97
                                                -----                  -----
                Basin wide percent of average    100                     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.