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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 SATURDAY: MAY 30 , 2009
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030      .0      .0   100     24.5    26.8    91
 COTTONWOOD CREEK         7670     2.8     6.7    42     38.9    35.5   110
 GRAND TARGHEE            9260    40.7      -M      *    43.0      -M      *
 GRANITE CREEK            6770      .1     2.1     5     27.6    24.7   112
 GRASSY LAKE              7265     3.8    16.6    23     42.7    44.7    96
 GROS VENTRE SUMMIT       8750      .1     4.9     2     19.0    17.4   109
 GUNSIGHT PASS            9820     8.3      -M      *    21.0      -M      *
 LEWIS LAKE DIVIDE        7850    14.4    20.2    71     42.5    45.1    94
 PHILLIPS BENCH           8200    12.1    15.9    76     36.5    36.3   101
 SALT RIVER SUMMIT        7760      .1      .0           21.2    23.9    89
 SNAKE RIVER STATION      6920      .0      .0   100     29.0    28.1   103
 SPRING CREEK DIVIDE      9000    15.5    17.0    91     33.3    32.9   101
 THUMB DIVIDE             7980      .2     3.4     6     27.8    24.6   113
 TOGWOTEE PASS            9580    22.3    23.3    96     36.5    32.4   113
 TWO OCEAN PLATEAU        9240    34.4    26.5   130     37.7    36.0   105
 WILLOW CREEK             8380    12.5    16.5    76     49.8    42.2   118
                                                -----                  -----
                Basin wide percent of average     77                    104


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    20.1    21.6    93     27.5    26.7   103
 BLACK BEAR               8170    26.4    28.4    93     45.6    49.9    91
 CANYON                   7870      .0     2.3     0     20.7    20.2   102
 FISHER CREEK             9100    29.0    31.3    93     45.5    46.3    98
 MADISON PLATEAU          7750     9.7    10.9    89     32.2    33.9    95
 NORTHEAST ENTRANCE       7350      .1      .6    17     18.2    17.3   105
 PARKER PEAK              9400    14.2    19.9    71     24.6    22.9   107
 SYLVAN LAKE              8420     7.0    13.3    53     30.2    28.6   106
 THUMB DIVIDE             7980      .2     3.4     6     27.8    24.6   113
 TWO OCEAN PLATEAU        9240    34.4    26.5   130     37.7    36.0   105
 WHISKEY CREEK            6800     1.4     2.2    64     27.0    27.0   100
 WHITE MILL               8700    17.2    19.4    89     31.7    34.8    91
 WOLVERINE                7650      .0      .1     0     17.2    18.0    96
                                                -----                  -----
                Basin wide percent of average     89                    100


WIND RIVER

 BURROUGHS CREEK          8750     4.0     4.6    87     22.2    22.3   100
 COLD SPRINGS             9630      .0     1.1     0     16.2    16.8    96
 DEER PARK                9700     4.5    10.1    45     24.3    30.6    79
 HOBBS PARK              10100     7.4    11.3    65     22.1    20.7   107
 LITTLE WARM              9370      .0     2.7     0     19.9    19.8   101
 SOUTH PASS               9040      .2     7.9     3     21.1    25.8    82
 ST. LAWRENCE ALT         8620      .1      .7    14     15.1    14.9   101
 TOGWOTEE PASS            9580    22.3    23.3    96     36.5    32.4   113
 TOWNSEND CREEK           8700      .0     2.2     0     18.5    18.6    99
                                                -----                  -----
                Basin wide percent of average     60                     97


BIGHORN BASIN

 BALD MTN.                9380    11.1    18.0    62     20.3    25.0    81
 BEAR TRAP MEADOW         8200      .1      .0           13.1    13.9    94
 BLACKWATER               9780    22.4    26.1    86     31.0    28.5   109
 BONE SPRINGS DIV         9350     4.3    10.2    42     19.2    22.0    87
 EVENING STAR             9200    21.6    28.0    77     40.2    34.0   118
 GRAVE SPRINGS            8550      .0     2.4     0     13.1    15.9    82
 KIRWIN                   9550      .4     6.6     6     20.0    17.2   116
 MARQUETTE                8760      .1     5.1     2     14.2    17.6    81
 MIDDLE POWDER            7760      .0     4.0     0     14.2    18.8    76
 OWL CREEK                8975      .1      .7    14     11.3    10.8   105
 POWDER RIVER PASS        9480      .0     3.1     0     19.8    19.3   103
 SHELL CREEK              9580     9.2    12.0    77     20.5    20.2   101
 SYLVAN LAKE              8420     7.0    13.3    53     30.2    28.6   106
 SYLVAN ROAD              7120      .1      .2    50     25.3    23.0   110
 TIMBER CREEK             7950      .1      .8    12     13.2    14.1    94
 YOUNTS PEAK              8350     7.0     8.8    80     20.9    21.8    96
                                                -----                  -----
                Basin wide percent of average     60                     99


SHOSHONE RIVER

 BLACKWATER               9780    22.4    26.1    86     31.0    28.5   109
 EVENING STAR             9200    21.6    28.0    77     40.2    34.0   118
 KIRWIN                   9550      .4     6.6     6     20.0    17.2   116
 MARQUETTE                8760      .1     5.1     2     14.2    17.6    81
 SYLVAN LAKE              8420     7.0    13.3    53     30.2    28.6   106
 SYLVAN ROAD              7120      .1      .2    50     25.3    23.0   110
 YOUNTS PEAK              8350     7.0     8.8    80     20.9    21.8    96
                                                -----                  -----
                Basin wide percent of average     67                    107


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .1      .0           13.1    13.9    94
 BIG GOOSE                7990      .0     4.4     0     16.9    16.2   104
 BONE SPRINGS DIV         9350     4.3    10.2    42     19.2    22.0    87
 BURGESS JUNCTION         7880      .0     4.1     0     16.2    18.3    89
 CLOUD PEAK RESERVOIR     9860     7.6     9.3    82     22.1    21.3   104
 DOME LAKE                8880      .0     4.2     0     20.5    20.3   101
 GRAVE SPRINGS            8550      .0     2.4     0     13.1    15.9    82
 HANSEN SAWMILL           8360      .0      .4     0     13.5    13.8    98
 MIDDLE POWDER            7760      .0     4.0     0     14.2    18.8    76
 POWDER RIVER PASS        9480      .0     3.1     0     19.8    19.3   103
 SUCKER CREEK             8880     1.3     4.8    27     22.1    21.2   104
 TIE CREEK                6870      .0      .0   100     17.9    16.9   106
                                                -----                  -----
                Basin wide percent of average     28                     96


BELLE FOURCHE

 BLIND PARK               6890      .1      .0           19.1    17.5   109
 COLE CANYON              5910      .0      .0   100     15.6    12.6   124
 NORTH RAPID CREEK        6130      .1      .0           18.3    13.8   133
                                                -----                  -----
                Basin wide percent of average       *                   121


UPPER N. PLATTE RIVER

 COLUMBINE                9160      .0     3.4     0     33.5    32.0   105
 DIVIDE PEAK              8880      .0     5.0     0     34.4    27.2   126
 ELK RIVER                8700      .2     1.9    11     27.6    25.8   107
 JOE WRIGHT              10120    13.6    18.7    73     36.1    34.5   105
 NORTH FRENCH CREEK      10130      -M    26.1      *      -M    34.0      *
 OLD BATTLE              10000    29.7    27.8   107     48.8    43.9   111
 SAGE CREEK BASIN         7850      .0     2.9     0     20.1    15.8   127
 SOUTH BRUSH CREEK        8440      .0     2.3     0     23.3    23.4   100
 TOWER                   10500    31.3    45.0    70     51.6    49.6   104
 WEBBER SPRINGS           9250     3.5     8.4    42     37.0    34.4   108
 WILLOW CREEK PASS        9540      .0     4.4     0     18.1    18.5    98
                                                -----                  -----
                Basin wide percent of average     65                    108


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240     6.1    13.7    45     29.0    30.8    94
 CASPER MTN.              7900      .1     5.2     2     19.9    23.7    84
 DEADMAN HILL            10220     9.4    12.7    74     24.3    24.4   100
 DEER PARK                9700     4.5    10.1    45     24.3    30.6    79
 LAPRELE CREEK            8375      .0     1.1     0     17.2    19.8    87
 RENO HILL                8400      .0     4.3     0     22.5    24.4    92
 ROACH                    9700      .6     7.2     8     25.9    26.1    99
 SAND LAKE               10050    26.9    28.1    96     38.4    33.9   113
 SOUTH PASS               9040      .2     7.9     3     21.1    25.8    82
 WINDY PEAK               7900      .6      .2   300     16.4    16.8    98
                                                -----                  -----
                Basin wide percent of average     53                     93


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100     23.7    20.8   114
 DIVIDE PEAK              8880      .0     5.0     0     34.4    27.2   126
 OLD BATTLE              10000    29.7    27.8   107     48.8    43.9   111
 SANDSTONE RS             8150      .1      .5    20     26.4    24.6   107
 WHISKEY PARK             8950     4.2    16.2    26     42.1    37.5   112
                                                -----                  -----
                Basin wide percent of average     69                    114


UPPER GREEN RIVER

 BIG SANDY OPENING        9080      .0     2.9     0     18.5    18.4   101
 BLIND BULL SUM           8650    21.4    19.4   110     26.3    27.9    94
 EAST RIM DIVIDE          7930      .0     3.0     0     15.5    15.9    97
 ELKHART PARK G.S.        9400      -M     4.5      *    19.3    18.8   103
 GROS VENTRE SUMMIT       8750      .1     4.9     2     19.0    17.4   109
 GUNSIGHT PASS            9820     8.3      -M      *    21.0      -M      *
 KENDALL R.S.             7740      .0      .0   100     17.3    18.4    94
 LOOMIS PARK              8240      .1     3.7     3     22.1    22.3    99
 NEW FORK LAKE            8340      -M      .0      *    15.3    15.7    97
 SNIDER BASIN             8060      -M     1.0      *    18.5    20.3    91
 SPRING CREEK DIVIDE      9000    15.5    17.0    91     33.3    32.9   101
 TRIPLE PEAK              8500     1.8     7.2    25     34.2    31.7   108
                                                -----                  -----
                Basin wide percent of average     67                    100


LOWER GREEN RIVER

 HAMS FORK                7840      .1      .0           16.5    16.8    98
 HEWINTA                  9519      .0     1.0     0     17.8    20.1    89
 HICKERSON PARK           9145      .0      .1     0     14.5    12.4   117
 HOLE-IN-ROCK             9150      .0      .1     0     13.7    12.0   114
 INDIAN CREEK             9425      -M    16.5      *    27.7    32.2    86
 KELLEY R.S.              8180      .0     2.8     0     23.1    26.0    89
 STEEL CREEK PARK        10200     5.9    13.2    45     21.7    22.9    95
                                                -----                  -----
                Basin wide percent of average     34                     95


UPPER BEAR RIVER

 BUG LAKE                 7950      .2     3.7     5     22.6    24.9    91
 HAYDEN FORK              9212      .1     2.1     5     27.8    28.2    99
 KELLEY R.S.              8180      .0     2.8     0     23.1    26.0    89
 LILY LAKE                9156      .0     2.1     0     21.9    23.9    92
 MONTE CRISTO             8960     2.1    14.5    14     32.9    33.8    97
 SALT RIVER SUMMIT        7760      .1      .0           21.2    23.9    89
 TRIAL LAKE               9992     3.5    16.3    21     30.8    33.0    93
                                                -----                  -----
                Basin wide percent of average     14                     93

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


 -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.