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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 30 , 2008
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030      -M    12.6      *      -M    24.3      *
 COTTONWOOD CREEK         7670    25.7    20.1   128     28.0    31.8    88
 GRAND TARGHEE            9260    54.6      -M      *    38.0      -M      *
 GRANITE CREEK            6770    17.2    13.2   130     24.9    22.3   112
 GRASSY LAKE              7265    39.4    33.7   117     47.5    40.7   117
 GROS VENTRE SUMMIT       8750    13.3    13.4    99     15.7    15.2   103
 GUNSIGHT PASS            9820    12.8      -M      *    16.5      -M      *
 LEWIS LAKE DIVIDE        7850    39.9    34.8   115     41.0    41.5    99
 PHILLIPS BENCH           8200    35.8    29.6   121     38.4    33.0   116
 SALT RIVER SUMMIT        7760      -M    11.0      *      -M    21.5      *
 SNAKE RIVER STATION      6920    18.5    12.6   147     30.2    25.4   119
 SPRING CREEK DIVIDE      9000    24.0    28.7    84     26.5    30.1    88
 THUMB DIVIDE             7980    17.9    15.3   117     23.1    21.9   105
 TOGWOTEE PASS            9580    30.0    27.9   108     33.3    28.8   116
 TWO OCEAN PLATEAU        9240      -M    31.8      *      -M    32.0      *
 WILLOW CREEK             8380    33.3    30.9   108     43.2    37.5   115
                                                -----                  -----
                Basin wide percent of average    113                    107


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    27.9    25.9   108     26.6    23.4   114
 BLACK BEAR               8170    48.8    40.1   122     47.0    45.7   103
 CANYON                   7870    17.8    11.5   155     22.9    17.6   130
 FISHER CREEK             9100    44.6    37.8   118     42.6    41.7   102
 MADISON PLATEAU          7750    33.3    24.4   136     35.5    30.3   117
 NORTHEAST ENTRANCE       7350     9.0     7.4   122     15.2    14.7   103
 PARKER PEAK              9400    31.7    24.5   129     27.1    19.4   140
 SYLVAN LAKE              8420    22.3    23.9    93     29.7    24.6   121
 THUMB DIVIDE             7980    17.9    15.3   117     23.1    21.9   105
 TWO OCEAN PLATEAU        9240      -M    31.8      *      -M    32.0      *
 WHISKEY CREEK            6800    20.6    15.4   134     27.4    24.1   114
 WHITE MILL               8700    30.8    26.4   117     30.6    31.1    98
 WOLVERINE                7650     9.1     7.4   123     15.6    15.1   103
                                                -----                  -----
                Basin wide percent of average    121                    111


WIND RIVER

 BURROUGHS CREEK          8750    16.5    13.8   120     20.6    19.2   107
 COLD SPRINGS             9630     3.9     4.9    80     11.5    13.8    83
 DEER PARK                9700    16.1    19.0    85     22.6    26.8    84
 HOBBS PARK              10100    15.2    18.0    84     17.4    16.8   104
 LITTLE WARM              9370     9.7    11.3    86     15.8    16.7    95
 SOUTH PASS               9040    14.6    18.1    81     19.6    22.6    87
 ST. LAWRENCE ALT         8620     4.9     6.3    78      9.4    12.0    78
 TOGWOTEE PASS            9580    30.0    27.9   108     33.3    28.8   116
 TOWNSEND CREEK           8700     8.7     9.2    95     14.1    15.4    92
                                                -----                  -----
                Basin wide percent of average     93                     95


BIGHORN BASIN

 BALD MTN.                9380    18.5    23.5    79     17.8    21.2    84
 BEAR TRAP MEADOW         8200     6.8     2.7   252    110.7    10.8  1025
 BLACKWATER               9780    29.3    28.7   102     27.1    24.6   110
 BONE SPRINGS DIV         9350    20.1    18.3   110     20.2    18.2   111
 EVENING STAR             9200    33.5    33.2   101     38.0    29.8   128
 GRAVE SPRINGS            8550    11.0    11.1    99     12.0    13.0    92
 KIRWIN                   9550    13.6    13.0   105     16.5    14.1   117
 MARQUETTE                8760     8.6    11.2    77     12.2    13.6    90
 MIDDLE POWDER            7760    13.6    14.5    94     11.2    15.7    71
 OWL CREEK                8975     1.7     4.1    41      8.2     8.1   101
 POWDER RIVER PASS        9480    12.4    10.9   114     16.6    15.7   106
 SHELL CREEK              9580    17.6    16.9   104     18.0    16.7   108
 SYLVAN LAKE              8420    22.3    23.9    93     29.7    24.6   121
 SYLVAN ROAD              7120    10.4     8.4   124     23.3    20.4   114
 TIMBER CREEK             7950     4.3     4.9    88      9.6    10.4    92
 YOUNTS PEAK              8350    18.7    18.2   103     19.6    18.7   105
                                                -----                  -----
                Basin wide percent of average    100                    142


SHOSHONE RIVER

 BLACKWATER               9780    29.3    28.7   102     27.1    24.6   110
 EVENING STAR             9200    33.5    33.2   101     38.0    29.8   128
 KIRWIN                   9550    13.6    13.0   105     16.5    14.1   117
 MARQUETTE                8760     8.6    11.2    77     12.2    13.6    90
 SYLVAN LAKE              8420    22.3    23.9    93     29.7    24.6   121
 SYLVAN ROAD              7120    10.4     8.4   124     23.3    20.4   114
 YOUNTS PEAK              8350    18.7    18.2   103     19.6    18.7   105
                                                -----                  -----
                Basin wide percent of average    100                    114


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     6.8     2.7   252    110.7    10.8  1025
 BIG GOOSE                7990     9.9    11.7    85     14.8    12.8   116
 BONE SPRINGS DIV         9350    20.1    18.3   110     20.2    18.2   111
 BURGESS JUNCTION         7880    14.8    13.3   111     16.5    15.3   108
 CLOUD PEAK RESERVOIR     9860    17.4    16.3   107     18.4    16.9   109
 DOME LAKE                8880    12.0    13.7    88     17.8    16.7   107
 GRAVE SPRINGS            8550    11.0    11.1    99     12.0    13.0    92
 HANSEN SAWMILL           8360     4.4     5.0    88     11.0    10.9   101
 MIDDLE POWDER            7760    13.6    14.5    94     11.2    15.7    71
 POWDER RIVER PASS        9480    12.4    10.9   114     16.6    15.7   106
 SUCKER CREEK             8880    15.8    13.2   120     19.9    17.3   115
 TIE CREEK                6870     6.5     4.2   155     14.0    13.4   104
                                                -----                  -----
                Basin wide percent of average    107                    160


BELLE FOURCHE

 BLIND PARK               6890     4.3     4.0   108     13.2    14.1    94
 COLE CANYON              5910     4.9     5.2    94      9.8     9.4   104
 NORTH RAPID CREEK        6130     7.6     4.2   181     11.5    11.3   102
                                                -----                  -----
                Basin wide percent of average    125                     99


UPPER N. PLATTE RIVER

 COLUMBINE                9160    25.8    21.3   121     32.3    29.0   111
 DIVIDE PEAK              8880    23.6    19.6   120     26.7    24.2   110
 ELK RIVER                8700    21.0    15.4   136     26.1    22.9   114
 JOE WRIGHT              10120    27.1    25.1   108     32.2    29.9   108
 NORTH FRENCH CREEK      10130    34.0    34.5    99     34.4    29.5   117
 OLD BATTLE              10000    37.9    36.8   103     45.0    39.7   113
 SAGE CREEK BASIN         7850    14.7    11.4   129     19.3    14.0   138
 SOUTH BRUSH CREEK        8440    11.0    11.3    97     19.7    20.0    98
 TOWER                   10500    49.0    52.1    94     46.8    44.9   104
 WEBBER SPRINGS           9250    28.2    25.3   111     35.2    31.0   114
 WILLOW CREEK PASS        9540    20.0    14.2   141     18.9    15.6   121
                                                -----                  -----
                Basin wide percent of average    109                    112


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    23.5    28.3    83     26.2    26.8    98
 CASPER MTN.              7900    14.7    17.3    85     17.4    19.4    90
 DEADMAN HILL            10220    21.0    19.6   107     22.6    20.8   109
 DEER PARK                9700    16.1    19.0    85     22.6    26.8    84
 LAPRELE CREEK            8375     7.0     7.4    95     14.1    16.3    87
 RENO HILL                8400    15.2    15.0   101     20.4    20.0   102
 ROACH                    9700    20.3    18.6   109     25.5    22.3   114
 SAND LAKE               10050    33.1    36.9    90     34.3    29.1   118
 SOUTH PASS               9040    14.6    18.1    81     19.6    22.6    87
 WINDY PEAK               7900     7.4     5.2   142     12.3    13.4    92
                                                -----                  -----
                Basin wide percent of average     93                     99


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     8.6     4.9   176     18.8    18.5   102
 DIVIDE PEAK              8880    23.6    19.6   120     26.7    24.2   110
 OLD BATTLE              10000    37.9    36.8   103     45.0    39.7   113
 SANDSTONE RS             8150    16.2     9.8   165     24.0    21.8   110
 WHISKEY PARK             8950    38.7    30.6   126     40.2    33.6   120
                                                -----                  -----
                Basin wide percent of average    123                    112


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    13.3    13.7    97     15.0    15.8    95
 BLIND BULL SUM           8650    27.4    28.0    98     19.5    25.1    78
 EAST RIM DIVIDE          7930     8.7    13.3    65     12.4    13.8    90
 ELKHART PARK G.S.        9400    11.5    13.0    88     13.2    15.9    83
 GROS VENTRE SUMMIT       8750    13.3    13.4    99     15.7    15.2   103
 GUNSIGHT PASS            9820    12.8      -M      *    16.5      -M      *
 KENDALL R.S.             7740     9.9    10.3    96     15.2    16.5    92
 LOOMIS PARK              8240    14.4    14.6    99     19.8    19.9    99
 NEW FORK LAKE            8340     8.1     8.7    93     10.6    13.3    80
 SNIDER BASIN             8060    12.6    12.9    98     15.9    18.5    86
 SPRING CREEK DIVIDE      9000    24.0    28.7    84     26.5    30.1    88
 TRIPLE PEAK              8500    24.4    24.0   102     31.9    28.5   112
                                                -----                  -----
                Basin wide percent of average     93                     92


LOWER GREEN RIVER

 HAMS FORK                7840     9.8     6.3   156     11.8    14.7    80
 HEWINTA                  9519    11.2     9.5   118     19.3    17.7   109
 HICKERSON PARK           9145     4.4     5.9    75     11.3    10.1   112
 HOLE-IN-ROCK             9150     4.5     5.0    90     11.8     9.7   122
 INDIAN CREEK             9425    26.9    28.5    94       -M    29.3      *
 KELLEY R.S.              8180    15.2    14.4   106     19.9    23.5    85
 STEEL CREEK PARK        10200    19.1    18.6   103     21.2    20.1   105
                                                -----                  -----
                Basin wide percent of average    103                     99


UPPER BEAR RIVER

 BUG LAKE                 7950    17.5    18.4    95     18.8    22.3    84
 HAYDEN FORK              9212    14.8    13.3   111     26.1    25.0   104
 KELLEY R.S.              8180    15.2    14.4   106     19.9    23.5    85
 LILY LAKE                9156    14.3    11.4   125     20.3    21.0    97
 MONTE CRISTO             8960    30.9    28.5   108     29.2    30.1    97
 SALT RIVER SUMMIT        7760      -M    11.0      *      -M    21.5      *
 TRIAL LAKE               9992    23.8    26.5    90     27.2    29.3    93
                                                -----                  -----
                Basin wide percent of average    104                     94

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


 -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.