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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 MONDAY: MAY 31 , 2010
-----------------------------------------------------------------------------
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*    17.9    26.9    67
 COTTONWOOD CREEK         7670     7.5     6.2   121     30.1    35.6    85
 GRAND TARGHEE            9260    46.3      -M      *    38.8      -M      *
 GRANITE CREEK            6770      .0     1.7     0*    16.8    24.8    68
 GRASSY LAKE              7265    11.7    15.7    75     34.3    44.8    77
 GROS VENTRE SUMMIT       8750     1.0     4.5    22     13.7    17.5    78
 GUNSIGHT PASS            9820     9.7      -M      *    16.6      -M      *
 LEWIS LAKE DIVIDE        7850    12.2    19.4    63     28.6    45.2    63
 PHILLIPS BENCH           8200    10.0    15.3    65     25.9    36.4    71
 SALT RIVER SUMMIT        7760      .0      .0   100*    17.4    24.0    73
 SNAKE RIVER STATION      6920      .0      .0   100*    21.4    28.2    76
 SPRING CREEK DIVIDE      9000    19.2    16.3   118     25.5    32.9    78
 THUMB DIVIDE             7980      .1     2.9     3     17.9    24.7    72
 TOGWOTEE PASS            9580    22.6    22.8    99       -M    32.5      *
 TWO OCEAN PLATEAU        9240    24.9    26.1    95     24.5    36.1    68
 WILLOW CREEK             8380    17.9    15.8   113     39.2    42.3    93
                                                -----                  -----
                Basin wide percent of average     87                     75


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    16.4    21.1    78     19.4    26.8    72
 BLACK BEAR               8170    22.9    27.6    83     35.2    50.0    70
 CANYON                   7870      .6     2.0    30     16.0    20.3    79
 FISHER CREEK             9100    27.8    30.8    90     32.5    46.4    70
 MADISON PLATEAU          7750    10.4    10.2   102     27.7    34.1    81
 NORTHEAST ENTRANCE       7350      .0      .5     0*    13.7    17.4    79
 PARKER PEAK              9400    16.2    19.4    84     19.1    23.0    83
 SYLVAN LAKE              8420    10.2    12.7    80     25.1    28.7    87
 THUMB DIVIDE             7980      .1     2.9     3     17.9    24.7    72
 TWO OCEAN PLATEAU        9240    24.9    26.1    95     24.5    36.1    68
 WHISKEY CREEK            6800      .0     1.8     0     18.5    27.1    68
 WHITE MILL               8700    16.1    19.0    85     22.7    35.0    65
 WOLVERINE                7650      .0      .0   100*    10.5    18.1    58
                                                -----                  -----
                Basin wide percent of average     84                     73


WIND RIVER

 BURROUGHS CREEK          8750     6.1     4.2   145       -M    22.4      *
 COLD SPRINGS             9630     3.0     1.1   273     19.2    16.9   114
 DEER PARK                9700    18.6     9.2   202     28.9    30.7    94
 HOBBS PARK              10100    24.1    10.9   221     28.6    20.8   138
 LITTLE WARM              9370     4.5     2.4   188     15.6    19.8    79
 SOUTH PASS               9040    12.8     7.3   175     26.6    25.9   103
 ST. LAWRENCE ALT         8620      .0      .7     0*    20.3    15.0   135
 TOGWOTEE PASS            9580    22.6    22.8    99       -M    32.5      *
 TOWNSEND CREEK           8700     8.3     2.0   415     25.4    18.6   137
                                                -----                  -----
                Basin wide percent of average    165                    111


BIGHORN BASIN

 BALD MTN.                9380    18.8    17.5   107     19.4    25.1    77
 BEAR TRAP MEADOW         8200      .1      .0      *    15.2    14.0   109
 BLACKWATER               9780    21.7    25.5    85     23.5    28.6    82
 BONE SPRINGS DIV         9350    13.0     9.4   138     18.3    22.1    83
 EVENING STAR             9200    18.1    27.4    66     28.2    34.1    83
 GRAVE SPRINGS            8550     5.1     2.2   232     19.0    15.9   119
 KIRWIN                   9550     8.0     6.2   129     17.2    17.3    99
 MARQUETTE                8760     9.8     4.7   209     18.4    17.7   104
 MIDDLE POWDER            7760     4.8     3.5   137     15.3    18.9    81
 OWL CREEK                8975      .0      .6     0     13.2    10.9   121
 POWDER RIVER PASS        9480     5.1     2.9   176     18.4    19.4    95
 SHELL CREEK              9580    14.9    11.4   131     19.6    20.3    97
 SYLVAN LAKE              8420    10.2    12.7    80     25.1    28.7    87
 SYLVAN ROAD              7120      .0      .2     0*    17.9    23.1    77
 TIMBER CREEK             7950      .2      .7    29     15.9    14.2   112
 YOUNTS PEAK              8350     6.2     8.1    77     14.3    21.9    65
                                                -----                  -----
                Basin wide percent of average    102                     90


SHOSHONE RIVER

 BLACKWATER               9780    21.7    25.5    85     23.5    28.6    82
 EVENING STAR             9200    18.1    27.4    66     28.2    34.1    83
 KIRWIN                   9550     8.0     6.2   129     17.2    17.3    99
 MARQUETTE                8760     9.8     4.7   209     18.4    17.7   104
 SYLVAN LAKE              8420    10.2    12.7    80     25.1    28.7    87
 SYLVAN ROAD              7120      .0      .2     0*    17.9    23.1    77
 YOUNTS PEAK              8350     6.2     8.1    77     14.3    21.9    65
                                                -----                  -----
                Basin wide percent of average     87                     84


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .1      .0      *    15.2    14.0   109
 BIG GOOSE                7990     6.7     3.9   172     20.2    16.3   124
 BONE SPRINGS DIV         9350    13.0     9.4   138     18.3    22.1    83
 BURGESS JUNCTION         7880     8.4     3.5   240     18.8    18.3   103
 CLOUD PEAK RESERVOIR     9860    15.7     8.7   180     22.2    21.5   103
 DOME LAKE                8880     7.3     3.9   187     21.4    20.4   105
 GRAVE SPRINGS            8550     5.1     2.2   232     19.0    15.9   119
 HANSEN SAWMILL           8360      .1      .3    33*    16.0    13.9   115
 MIDDLE POWDER            7760     4.8     3.5   137     15.3    18.9    81
 POWDER RIVER PASS        9480     5.1     2.9   176     18.4    19.4    95
 SUCKER CREEK             8880    13.1     4.3   305     23.9    21.3   112
 TIE CREEK                6870      .0      .0   100*    20.5    17.0   121
                                                -----                  -----
                Basin wide percent of average    186                    105


BELLE FOURCHE

 BLIND PARK               6890      .0      .0   100*    20.3    17.7   115
 COLE CANYON              5910      .0      .0   100*    19.8    12.7   156
 NORTH RAPID CREEK        6130      .1      .0      *    18.4    13.8   133
                                                -----                  -----
                Basin wide percent of average       *                   132


UPPER N. PLATTE RIVER

 COLUMBINE                9160      .2     2.9     7     30.7    32.1    96
 DIVIDE PEAK              8880     5.6     4.5   124     32.6    27.3   119
 ELK RIVER                8700      .0     1.7     0*    27.3    25.8   106
 JOE WRIGHT              10120    17.9    18.1    99     31.5    34.6    91
 NORTH FRENCH CREEK      10130    38.2    25.4   150     46.1    34.1   135
 OLD BATTLE              10000    38.1    27.1   141     48.3    44.0   110
 SAGE CREEK BASIN         7850      .0     2.6     0     18.3    15.8   116
 SOUTH BRUSH CREEK        8440      .1     2.1     5     28.1    23.5   120
 TOWER                   10500    36.3    44.2    82     45.7    49.8    92
 WEBBER SPRINGS           9250    14.9     7.8   191     37.4    34.5   108
 WILLOW CREEK PASS        9540     4.9     4.0   123     18.3    18.6    98
                                                -----                  -----
                Basin wide percent of average    111                    107


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    16.4    13.0   126     30.6    30.9    99
 CASPER MTN.              7900     5.2     4.8   108     21.9    23.8    92
 DEADMAN HILL            10220    21.6    12.3   176     26.9    24.5   110
 DEER PARK                9700    18.6     9.2   202     28.9    30.7    94
 LAPRELE CREEK            8375      .0     1.0     0*    19.7    19.9    99
 RENO HILL                8400     7.6     4.0   190     27.6    24.5   113
 ROACH                    9700    11.2     6.7   167     29.9    26.2   114
 SAND LAKE               10050    35.6    27.4   130     42.0    34.0   124
 SOUTH PASS               9040    12.8     7.3   175     26.6    25.9   103
 WINDY PEAK               7900      .2      .2   100*    20.1    16.9   119
                                                -----                  -----
                Basin wide percent of average    150                    107


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100*    20.8    20.8   100
 DIVIDE PEAK              8880     5.6     4.5   124     32.6    27.3   119
 OLD BATTLE              10000    38.1    27.1   141     48.3    44.0   110
 SANDSTONE RS             8150      -M      .3      *    23.8    24.6    97
 WHISKEY PARK             8950    19.8    15.3   129     41.4    37.6   110
                                                -----                  -----
                Basin wide percent of average    135                    108


UPPER GREEN RIVER

 BIG SANDY OPENING        9080      -M     2.4      *    13.8    18.4    75
 BLIND BULL SUM           8650    17.8    18.8    95     18.7    28.0    67
 EAST RIM DIVIDE          7930      .1     2.5     4     10.1    15.9    64
 ELKHART PARK G.S.        9400      .4     4.1    10     12.6    18.9    67
 GROS VENTRE SUMMIT       8750     1.0     4.5    22     13.7    17.5    78
 GUNSIGHT PASS            9820     9.7      -M      *    16.6      -M      *
 KENDALL R.S.             7740      .1      .0      *    12.1    18.5    65
 LOOMIS PARK              8240      .1     3.2     3     14.1    22.3    63
 NEW FORK LAKE            8340      .0      .0   100*    10.3    15.7    66
 POCKET CREEK             9360     4.5      -M      *    15.4      -M      *
 SNIDER BASIN             8060      .0      .5     0*    16.5    20.3    81
 SPRING CREEK DIVIDE      9000    19.2    16.3   118     25.5    32.9    78
 TRIPLE PEAK              8500     9.6     6.4   150     28.8    31.8    91
                                                -----                  -----
                Basin wide percent of average     86                     73


LOWER GREEN RIVER

 HAMS FORK                7840      .3      .0      *    15.5    16.9    92
 HEWINTA                  9519      .0      .8     0*    18.1    20.2    90
 HICKERSON PARK           9145      .0      .1     0*    16.0    12.5   128
 HOLE-IN-ROCK             9150      .0      .1     0*    15.5    12.1   128
 INDIAN CREEK             9425    18.4    15.9   116     24.6    32.3    76
 KELLEY R.S.              8180     2.2     2.4    92     19.7    26.1    75
 STEEL CREEK PARK        10200    18.8    12.7   148     22.7    23.0    99
                                                -----                  -----
                Basin wide percent of average    124*                    92


UPPER BEAR RIVER

 BUG LAKE                 7950     5.1     3.3   155     21.7    25.0    87
 HAYDEN FORK              9212      .1     1.9     5     24.9    28.3    88
 KELLEY R.S.              8180     2.2     2.4    92     19.7    26.1    75
 LILY LAKE                9156      .1     1.8     6     21.0    23.9    88
 MONTE CRISTO             8960    16.5    13.8   120     28.3    33.9    83
 SALT RIVER SUMMIT        7760      .0      .0   100*    17.4    24.0    73
 TRIAL LAKE               9992    13.7    15.7    87     23.3    33.1    70
                                                -----                  -----
                Basin wide percent of average     97                     80

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


 -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.