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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: MAY 14 , 2009
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030     4.7     7.4    64     24.3    25.4    96
 COTTONWOOD CREEK         7670    22.0    14.9   148     38.5    33.6   115
 GRAND TARGHEE            9260    54.1      -M      *    43.1      -M      *
 GRANITE CREEK            6770     7.3     8.6    85     25.5    23.4   109
 GRASSY LAKE              7265    26.8    27.7    97     42.8    42.6   100
 GROS VENTRE SUMMIT       8750    11.7    10.5   111     19.3    16.2   119
 GUNSIGHT PASS            9820    18.0      -M      *    20.7      -M      *
 LEWIS LAKE DIVIDE        7850    35.8    30.0   119     41.5    43.2    96
 PHILLIPS BENCH           8200    28.2    25.1   112     35.9    34.6   104
 SALT RIVER SUMMIT        7760     8.4     5.8   145     20.4    22.6    90
 SNAKE RIVER STATION      6920     6.7     6.7   100     28.7    26.7   107
 SPRING CREEK DIVIDE      9000    31.3    25.5   123     32.6    31.4   104
 THUMB DIVIDE             7980    17.4    10.5   166     27.0    23.2   116
 TOGWOTEE PASS            9580    33.2    27.7   120     36.4    30.6   119
 TWO OCEAN PLATEAU        9240    48.5    31.0   156     37.4    33.8   111
 WILLOW CREEK             8380    31.9    26.3   121     48.3    39.8   121
                                                -----                  -----
                Basin wide percent of average    122                    107


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    28.7    25.7   112     27.0    25.0   108
 BLACK BEAR               8170    42.9    37.2   115     44.9    47.7    94
 CANYON                   7870    14.1     7.7   183     20.2    18.8   107
 FISHER CREEK             9100    45.0    37.2   121     44.7    43.8   102
 MADISON PLATEAU          7750    24.1    20.5   118     31.7    31.9    99
 NORTHEAST ENTRANCE       7350      .8     4.1    20     17.7    15.8   112
 PARKER PEAK              9400    33.1    24.2   137     24.2    21.0   115
 SYLVAN LAKE              8420    22.5    21.1   107     30.1    26.3   114
 THUMB DIVIDE             7980    17.4    10.5   166     27.0    23.2   116
 TWO OCEAN PLATEAU        9240    48.5    31.0   156     37.4    33.8   111
 WHISKEY CREEK            6800    16.5    10.8   153     26.5    25.4   104
 WHITE MILL               8700    31.2    25.3   123     31.4    32.8    96
 WOLVERINE                7650     4.7     3.9   121     16.8    16.5   102
                                                -----                  -----
                Basin wide percent of average    127                    105


WIND RIVER

 BURROUGHS CREEK          8750    18.1    10.9   166     21.8    20.6   106
 COLD SPRINGS             9630     5.8     3.7   157     15.6    15.3   102
 DEER PARK                9700    14.2    17.2    83     23.1    28.5    81
 HOBBS PARK              10100    17.7    17.1   104     20.9    18.7   112
 LITTLE WARM              9370    11.6     8.3   140     19.7    18.2   108
 SOUTH PASS               9040    12.7    14.7    86     20.1    24.3    83
 ST. LAWRENCE ALT         8620      -M     4.3      *      -M    13.5      *
 TOGWOTEE PASS            9580    33.2    27.7   120     36.4    30.6   119
 TOWNSEND CREEK           8700     7.6     6.3   121     17.4    17.0   102
                                                -----                  -----
                Basin wide percent of average    114                    101


BIGHORN BASIN

 BALD MTN.                9380    22.2    23.4    95     19.7    23.1    85
 BEAR TRAP MEADOW         8200      .5     1.0    50     12.3    12.2   101
 BLACKWATER               9780    32.6    28.9   113     30.1    26.4   114
 BONE SPRINGS DIV         9350    19.1    16.7   114     18.8    20.0    94
 EVENING STAR             9200    34.9    32.8   106     39.5    31.7   125
 GRAVE SPRINGS            8550     7.3     8.8    83     12.5    14.5    86
 KIRWIN                   9550    15.0    11.6   129     19.7    15.6   126
 MARQUETTE                8760     7.4     9.4    79     13.1    15.5    85
 MIDDLE POWDER            7760    10.0    11.7    85     13.2    17.3    76
 OWL CREEK                8975      .0     2.6     0     10.3     9.3   111
 POWDER RIVER PASS        9480    12.7     8.6   148     19.3    17.4   111
 SHELL CREEK              9580    19.5    16.7   117     20.0    18.4   109
 SYLVAN LAKE              8420    22.5    21.1   107     30.1    26.3   114
 SYLVAN ROAD              7120      .2     3.3     6     24.7    21.7   114
 TIMBER CREEK             7950      .8     2.5    32     12.2    12.1   101
 YOUNTS PEAK              8350    20.5    16.1   127     20.6    20.1   102
                                                -----                  -----
                Basin wide percent of average    105                    105


SHOSHONE RIVER

 BLACKWATER               9780    32.6    28.9   113     30.1    26.4   114
 EVENING STAR             9200    34.9    32.8   106     39.5    31.7   125
 KIRWIN                   9550    15.0    11.6   129     19.7    15.6   126
 MARQUETTE                8760     7.4     9.4    79     13.1    15.5    85
 SYLVAN LAKE              8420    22.5    21.1   107     30.1    26.3   114
 SYLVAN ROAD              7120      .2     3.3     6     24.7    21.7   114
 YOUNTS PEAK              8350    20.5    16.1   127     20.6    20.1   102
                                                -----                  -----
                Basin wide percent of average    108                    113


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .5     1.0    50     12.3    12.2   101
 BIG GOOSE                7990     9.5     9.5   100     16.3    14.6   112
 BONE SPRINGS DIV         9350    19.1    16.7   114     18.8    20.0    94
 BURGESS JUNCTION         7880    12.1    10.8   112     15.9    16.8    95
 CLOUD PEAK RESERVOIR     9860    19.8    15.1   131     21.5    19.1   113
 DOME LAKE                8880    10.8    11.0    98     19.5    18.5   105
 GRAVE SPRINGS            8550     7.3     8.8    83     12.5    14.5    86
 HANSEN SAWMILL           8360      .0     2.7     0     13.1    12.2   107
 MIDDLE POWDER            7760    10.0    11.7    85     13.2    17.3    76
 POWDER RIVER PASS        9480    12.7     8.6   148     19.3    17.4   111
 SUCKER CREEK             8880    15.1    10.8   140     21.3    19.2   111
 TIE CREEK                6870      .0     1.7     0     17.6    15.1   117
                                                -----                  -----
                Basin wide percent of average    108                    102


BELLE FOURCHE

 BLIND PARK               6890      -M      .5      *    18.0    15.7   115
 COLE CANYON              5910      .2     1.0    20     14.9    11.0   135
 NORTH RAPID CREEK        6130      .0      .8     0     17.3    12.5   138
                                                -----                  -----
                Basin wide percent of average     11                    128


UPPER N. PLATTE RIVER

 COLUMBINE                9160     7.3    14.5    50     33.1    30.5   109
 DIVIDE PEAK              8880    19.4    13.9   140     33.4    25.7   130
 ELK RIVER                8700      .4     8.7     5     25.9    24.3   107
 JOE WRIGHT              10120    23.8    24.2    98     34.9    32.1   109
 NORTH FRENCH CREEK      10130    38.1    33.6   113     39.8    31.7   126
 OLD BATTLE              10000    39.4    36.1   109     47.3    41.9   113
 SAGE CREEK BASIN         7850      .0     8.1     0     19.4    14.9   130
 SOUTH BRUSH CREEK        8440      .4     7.2     6     22.8    21.7   105
 TOWER                   10500    49.0    51.9    94     50.9    47.4   107
 WEBBER SPRINGS           9250    18.3    19.4    94     35.8    32.7   109
 WILLOW CREEK PASS        9540     9.7    11.9    82     16.1    16.9    95
                                                -----                  -----
                Basin wide percent of average     90                    112


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    22.1    24.2    91     28.4    28.9    98
 CASPER MTN.              7900     9.7    12.7    76     17.5    21.5    81
 DEADMAN HILL            10220    19.5    18.5   105     23.8    22.6   105
 DEER PARK                9700    14.2    17.2    83     23.1    28.5    81
 LAPRELE CREEK            8375     3.6     4.1    88     16.9    18.0    94
 RENO HILL                8400    11.3    10.5   108     21.3    22.2    96
 ROACH                    9700    12.7    14.4    88     24.2    24.1   100
 SAND LAKE               10050    35.1    36.0    98     36.9    31.5   117
 SOUTH PASS               9040    12.7    14.7    86     20.1    24.3    83
 WINDY PEAK               7900     2.8     2.1   133     15.3    15.0   102
                                                -----                  -----
                Basin wide percent of average     93                     96


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0     1.2     0     22.9    19.6   117
 DIVIDE PEAK              8880    19.4    13.9   140     33.4    25.7   130
 OLD BATTLE              10000    39.4    36.1   109     47.3    41.9   113
 SANDSTONE RS             8150      .2     4.5     4     25.4    23.2   109
 WHISKEY PARK             8950    26.6    27.5    97     40.8    35.8   114
                                                -----                  -----
                Basin wide percent of average    103                    116


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     9.4     9.8    96     16.7    17.0    98
 BLIND BULL SUM           8650    31.8    25.5   125     25.4    26.4    96
 EAST RIM DIVIDE          7930      .0     9.9     0     14.6    14.7    99
 ELKHART PARK G.S.        9400    13.3    10.0   133     18.9    17.2   110
 GROS VENTRE SUMMIT       8750    11.7    10.5   111     19.3    16.2   119
 GUNSIGHT PASS            9820    18.0      -M      *    20.7      -M      *
 KENDALL R.S.             7740      .2     4.7     4     17.3    17.4    99
 LOOMIS PARK              8240     9.0    10.4    87     22.3    21.0   106
 NEW FORK LAKE            8340     3.7     4.6    80     14.3    14.4    99
 SNIDER BASIN             8060     7.4     8.5    87     18.1    19.3    94
 SPRING CREEK DIVIDE      9000    31.3    25.5   123     32.6    31.4   104
 TRIPLE PEAK              8500    20.3    18.3   111     33.5    30.1   111
                                                -----                  -----
                Basin wide percent of average    100                    104


LOWER GREEN RIVER

 HAMS FORK                7840      .1     1.8     6     15.9    15.7   101
 HEWINTA                  9519      .0     5.2     0     17.2    18.9    91
 HICKERSON PARK           9145      .0     2.6     0     13.3    11.2   119
 HOLE-IN-ROCK             9150      .0     2.1     0     12.7    10.8   118
 INDIAN CREEK             9425      -M    24.6      *    27.4    30.8    89
 KELLEY R.S.              8180    10.4     9.9   105     22.1    24.7    89
 STEEL CREEK PARK        10200    14.9    18.5    81     21.0    21.5    98
                                                -----                  -----
                Basin wide percent of average     63                     97


UPPER BEAR RIVER

 BUG LAKE                 7950    11.1    12.0    92     21.9    23.6    93
 HAYDEN FORK              9212      .2     8.2     2     27.3    26.6   103
 KELLEY R.S.              8180    10.4     9.9   105     22.1    24.7    89
 LILY LAKE                9156      .4     7.0     6     21.5    22.4    96
 MONTE CRISTO             8960    21.4    23.6    91     32.0    32.0   100
 SALT RIVER SUMMIT        7760     8.4     5.8   145     20.4    22.6    90
 TRIAL LAKE               9992    19.9    23.9    83     29.7    31.1    95
                                                -----                  -----
                Basin wide percent of average     79                     96

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


 -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.