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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 THURSDAY: APRIL 22 , 2010
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     5.6    15.4    36     13.5    23.5    57
 COTTONWOOD CREEK         7670    14.5    22.7    64     22.7    30.5    74
 GRAND TARGHEE            9260    40.9      -M      *    30.3      -M      *
 GRANITE CREEK            6770     7.1    15.7    45     12.8    21.6    59
 GRASSY LAKE              7265    20.5    36.3    56     27.1    39.4    69
 GROS VENTRE SUMMIT       8750     7.3    14.4    51      9.0    14.5    62
 GUNSIGHT PASS            9820     8.0      -M      *    11.0      -M      *
 LEWIS LAKE DIVIDE        7850    17.5    36.4    48     22.5    40.3    56
 PHILLIPS BENCH           8200    16.9    30.6    55     20.9    31.9    66
 SALT RIVER SUMMIT        7760     7.9    13.4    59     13.2    20.8    63
 SNAKE RIVER STATION      6920     4.4    15.9    28     17.3    24.6    70
 SPRING CREEK DIVIDE      9000    18.8    28.9    65     18.9    29.1    65
 THUMB DIVIDE             7980     8.2    17.6    47     13.8    21.0    66
 TOGWOTEE PASS            9580    18.2    27.3    67     19.7    27.6    71
 TWO OCEAN PLATEAU        9240    22.0    31.3    70     18.6    30.7    61
 WILLOW CREEK             8380    18.7    31.9    59     28.3    35.9    79
                                                -----                  -----
                Basin wide percent of average     56                     66


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    14.4    25.7    56     14.1    22.4    63
 BLACK BEAR               8170    25.6    40.9    63     26.7    44.3    60
 CANYON                   7870     7.1    13.0    55     11.1    17.0    65
 FISHER CREEK             9100    21.6    37.6    57     23.7    40.2    59
 MADISON PLATEAU          7750    15.2    25.8    59     20.5    29.5    69
 NORTHEAST ENTRANCE       7350      .5     9.5     5      9.1    14.1    65
 PARKER PEAK              9400    17.8    23.9    74     13.6    18.4    74
 SYLVAN LAKE              8420    12.2    24.2    50     18.1    23.5    77
 THUMB DIVIDE             7980     8.2    17.6    47     13.8    21.0    66
 TWO OCEAN PLATEAU        9240    22.0    31.3    70     18.6    30.7    61
 WHISKEY CREEK            6800     9.6    17.3    55     12.9    23.2    56
 WHITE MILL               8700    15.9    26.3    60     16.4    29.9    55
 WOLVERINE                7650     2.0     9.8    20      7.7    14.4    53
                                                -----                  -----
                Basin wide percent of average     57                     63


WIND RIVER

 BURROUGHS CREEK          8750     8.6    14.8    58      8.9    18.3    49
 COLD SPRINGS             9630     5.3     5.8    91     10.5    12.7    83
 DEER PARK                9700    16.5    17.9    92     20.6    25.2    82
 HOBBS PARK              10100    16.2    17.1    95     17.5    15.5   113
 LITTLE WARM              9370     6.6    12.1    55      9.2    15.6    59
 SOUTH PASS               9040    13.7    17.9    77     18.0    21.2    85
 ST. LAWRENCE ALT         8620     6.1     6.6    92     11.6    10.9   106
 TOGWOTEE PASS            9580    18.2    27.3    67     19.7    27.6    71
 TOWNSEND CREEK           8700    10.1     9.6   105     15.9    14.2   112
                                                -----                  -----
                Basin wide percent of average     78                     82


BIGHORN BASIN

 BALD MTN.                9380    13.3    22.6    59     11.9    19.9    60
 BEAR TRAP MEADOW         8200     5.1     3.7   138      9.0    10.0    90
 BLACKWATER               9780    18.0    27.4    66     17.1    23.4    73
 BONE SPRINGS DIV         9350     9.8    17.8    55     10.7    17.0    63
 EVENING STAR             9200    18.0    32.4    56     21.7    28.5    76
 GRAVE SPRINGS            8550     8.0    11.0    73     11.0    12.0    92
 KIRWIN                   9550     9.2    12.5    74     10.4    13.1    79
 MARQUETTE                8760     7.0    10.7    65      9.5    12.2    78
 MIDDLE POWDER            7760    10.1    14.3    71      9.3    14.5    64
 OWL CREEK                8975     2.3     4.7    49      5.9     7.3    81
 POWDER RIVER PASS        9480     7.4    11.7    63     11.7    14.5    81
 SHELL CREEK              9580    11.5    16.3    71     11.0    15.5    71
 SYLVAN LAKE              8420    12.2    24.2    50     18.1    23.5    77
 SYLVAN ROAD              7120     1.1    10.7    10     12.7    19.5    65
 TIMBER CREEK             7950     2.9     5.2    56      7.0     9.2    76
 YOUNTS PEAK              8350    10.6    18.2    58     10.2    18.0    57
                                                -----                  -----
                Basin wide percent of average     60                     73


SHOSHONE RIVER

 BLACKWATER               9780    18.0    27.4    66     17.1    23.4    73
 EVENING STAR             9200    18.0    32.4    56     21.7    28.5    76
 KIRWIN                   9550     9.2    12.5    74     10.4    13.1    79
 MARQUETTE                8760     7.0    10.7    65      9.5    12.2    78
 SYLVAN LAKE              8420    12.2    24.2    50     18.1    23.5    77
 SYLVAN ROAD              7120     1.1    10.7    10     12.7    19.5    65
 YOUNTS PEAK              8350    10.6    18.2    58     10.2    18.0    57
                                                -----                  -----
                Basin wide percent of average     56                     72


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     5.1     3.7   138      9.0    10.0    90
 BIG GOOSE                7990     8.1    12.5    65     10.9    11.5    95
 BONE SPRINGS DIV         9350     9.8    17.8    55     10.7    17.0    63
 BURGESS JUNCTION         7880     9.8    13.3    74     10.8    14.2    76
 CLOUD PEAK RESERVOIR     9860    12.0    15.8    76     12.0    15.5    77
 DOME LAKE                8880     7.5    13.8    54     11.8    15.5    76
 GRAVE SPRINGS            8550     8.0    11.0    73     11.0    12.0    92
 HANSEN SAWMILL           8360     4.1     5.6    73      7.9     9.9    80
 MIDDLE POWDER            7760    10.1    14.3    71      9.3    14.5    64
 POWDER RIVER PASS        9480     7.4    11.7    63     11.7    14.5    81
 SUCKER CREEK             8880    10.6    13.5    79     13.5    16.0    84
 TIE CREEK                6870      .0     5.2     0     10.1    12.2    83
                                                -----                  -----
                Basin wide percent of average     67                     79


BELLE FOURCHE

 BLIND PARK               6890      .0     6.8     0     12.2    13.0    94
 COLE CANYON              5910     1.5     6.7    22     10.6     8.2   129
 NORTH RAPID CREEK        6130      .6     7.8     8     11.2    10.1   111
                                                -----                  -----
                Basin wide percent of average     10                    109


UPPER N. PLATTE RIVER

 COLUMBINE                9160    16.1    23.8    68     23.6    28.0    84
 DIVIDE PEAK              8880    19.7    20.8    95     25.6    23.1   111
 ELK RIVER                8700    13.3    18.5    72     21.4    21.9    98
 JOE WRIGHT              10120    19.2    24.4    79     23.1    28.3    82
 NORTH FRENCH CREEK      10130    36.1    33.6   107     36.3    27.9   130
 OLD BATTLE              10000    35.8    35.6   101     38.7    38.1   102
 SAGE CREEK BASIN         7850    12.1    12.1   100     13.9    13.4   104
 SOUTH BRUSH CREEK        8440    10.1    12.8    79     19.7    18.8   105
 TOWER                   10500    36.4    50.8    72     35.4    43.0    82
 WEBBER SPRINGS           9250    22.3    26.0    86     29.7    29.7   100
 WILLOW CREEK PASS        9540     8.3    14.1    59     11.7    14.7    80
                                                -----                  -----
                Basin wide percent of average     84                     97


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    21.5    27.5    78     23.6    25.3    93
 CASPER MTN.              7900    15.3    17.4    88     16.7    17.7    94
 DEADMAN HILL            10220    22.3    19.0   117     18.8    19.5    96
 DEER PARK                9700    16.5    17.9    92     20.6    25.2    82
 LAPRELE CREEK            8375     6.9     9.3    74     14.5    15.0    97
 RENO HILL                8400    14.5    16.0    91     19.6    18.4   107
 ROACH                    9700    16.4    18.5    89     21.9    21.1   104
 SAND LAKE               10050    31.4    35.9    87     32.5    27.5   118
 SOUTH PASS               9040    13.7    17.9    77     18.0    21.2    85
 WINDY PEAK               7900     7.9     7.1   111     12.8    12.4   103
                                                -----                  -----
                Basin wide percent of average     89                     98


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     4.5     7.2    63     15.8    17.7    89
 DIVIDE PEAK              8880    19.7    20.8    95     25.6    23.1   111
 OLD BATTLE              10000    35.8    35.6   101     38.7    38.1   102
 SANDSTONE RS             8150    10.0    12.4    81     18.2    20.7    88
 WHISKEY PARK             8950    23.9    30.6    78     32.2    32.0   101
                                                -----                  -----
                Basin wide percent of average     88                     99


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     8.5    15.0    57     10.6    15.0    71
 BLIND BULL SUM           8650    17.1    28.7    60     12.9    24.3    53
 EAST RIM DIVIDE          7930     3.0    14.0    21      7.7    13.3    58
 ELKHART PARK G.S.        9400     7.6    13.9    55     10.0    15.0    67
 GROS VENTRE SUMMIT       8750     7.3    14.4    51      9.0    14.5    62
 GUNSIGHT PASS            9820     8.0      -M      *    11.0      -M      *
 KENDALL R.S.             7740     2.9    12.6    23      9.0    15.9    57
 LOOMIS PARK              8240     5.9    16.3    36     11.3    19.1    59
 NEW FORK LAKE            8340     3.4    10.6    32      7.4    12.6    59
 POCKET CREEK             9360     7.5      -M      *    12.0      -M      *
 SNIDER BASIN             8060     7.9    14.5    54     11.6    17.9    65
 SPRING CREEK DIVIDE      9000    18.8    28.9    65     18.9    29.1    65
 TRIPLE PEAK              8500    14.4    25.7    56     20.5    27.4    75
                                                -----                  -----
                Basin wide percent of average     50                     63


LOWER GREEN RIVER

 HAMS FORK                7840     4.8     8.7    55     10.6    13.9    76
 HEWINTA                  9519     6.1    11.6    53     13.0    16.8    77
 HICKERSON PARK           9145     5.1     7.7    66     11.7     9.4   124
 HOLE-IN-ROCK             9150     3.4     6.6    52     11.2     8.9   126
 INDIAN CREEK             9425    17.2    29.6    58     18.0    28.3    64
 KELLEY R.S.              8180     9.4    16.4    57     14.9    22.6    66
 STEEL CREEK PARK        10200    15.0    17.8    84     16.2    19.1    85
                                                -----                  -----
                Basin wide percent of average     62                     80


UPPER BEAR RIVER

 BUG LAKE                 7950    11.2    20.9    54     16.0    21.4    75
 HAYDEN FORK              9212     7.2    15.6    46     18.5    23.9    77
 KELLEY R.S.              8180     9.4    16.4    57     14.9    22.6    66
 LILY LAKE                9156     9.0    13.6    66     14.7    20.0    74
 MONTE CRISTO             8960    16.8    30.2    56     19.9    28.7    69
 SALT RIVER SUMMIT        7760     7.9    13.4    59     13.2    20.8    63
 TRIAL LAKE               9992    16.1    26.6    61     16.1    28.0    58
                                                -----                  -----
                Basin wide percent of average     57                     69

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


 -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.