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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 TUESDAY: MAY 25 , 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     2.4     0     17.3    26.4    66
 COTTONWOOD CREEK         7670    11.0     9.4   117     29.5    35.0    84
 GRAND TARGHEE            9260    45.9      -M      *    37.7      -M      *
 GRANITE CREEK            6770      .0     4.2     0     15.8    24.3    65
 GRASSY LAKE              7265    13.7    20.5    67     33.0    44.0    75
 GROS VENTRE SUMMIT       8750     5.3     6.8    78     13.6    17.0    80
 GUNSIGHT PASS            9820    11.2      -M      *    16.3      -M      *
 LEWIS LAKE DIVIDE        7850    14.0    23.6    59     27.7    44.5    62
 PHILLIPS BENCH           8200    12.9    19.0    68     25.5    35.8    71
 SALT RIVER SUMMIT        7760      .1      .5    20*    17.1    23.5    73
 SNAKE RIVER STATION      6920      .0     1.1     0*    20.8    27.7    75
 SPRING CREEK DIVIDE      9000    21.3    20.1   106     25.0    32.5    77
 THUMB DIVIDE             7980      .1     5.7     2     17.3    24.2    71
 TOGWOTEE PASS            9580    23.3    25.1    93       -M    31.9      *
 TWO OCEAN PLATEAU        9240    25.4    28.4    89     23.5    35.3    67
 WILLOW CREEK             8380    19.8    19.9    99     38.2    41.5    92
                                                -----                  -----
                Basin wide percent of average     79                     74


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    17.3    23.5    74     18.8    26.2    72
 BLACK BEAR               8170    23.2    32.1    72     33.4    49.3    68
 CANYON                   7870     1.8     3.8    47     15.0    19.8    76
 FISHER CREEK             9100    25.7    33.2    77     30.9    45.5    68
 MADISON PLATEAU          7750    11.9    14.2    84     26.4    33.3    79
 NORTHEAST ENTRANCE       7350      .0     1.0     0*    12.6    16.8    75
 PARKER PEAK              9400    18.2    21.7    84     17.7    22.3    79
 SYLVAN LAKE              8420    11.0    16.0    69     23.8    27.9    85
 THUMB DIVIDE             7980      .1     5.7     2     17.3    24.2    71
 TWO OCEAN PLATEAU        9240    25.4    28.4    89     23.5    35.3    67
 WHISKEY CREEK            6800     2.5     5.0    50     17.0    26.5    64
 WHITE MILL               8700    17.0    21.7    78     21.5    34.2    63
 WOLVERINE                7650      .0      .7     0*    10.0    17.6    57
                                                -----                  -----
                Basin wide percent of average     74                     71


WIND RIVER

 BURROUGHS CREEK          8750     9.7     6.7   145     14.2    21.8    65
 COLD SPRINGS             9630     7.8     1.5   520     19.2    16.4   117
 DEER PARK                9700    21.9    13.8   159     28.7    30.0    96
 HOBBS PARK              10100    26.7    13.6   196     28.5    20.1   142
 LITTLE WARM              9370     8.7     4.2   207     15.5    19.3    80
 SOUTH PASS               9040    18.1     9.5   191     26.5    25.4   104
 ST. LAWRENCE ALT         8620     6.9     1.2   575     20.3    14.5   140
 TOGWOTEE PASS            9580    23.3    25.1    93       -M    31.9      *
 TOWNSEND CREEK           8700    14.2     3.0   473     25.2    18.1   139
                                                -----                  -----
                Basin wide percent of average    175                    108


BIGHORN BASIN

 BALD MTN.                9380    19.5    20.2    97     18.3    24.5    75
 BEAR TRAP MEADOW         8200     1.5      .0      *    15.0    13.4   112
 BLACKWATER               9780    22.8    27.9    82     23.0    27.8    83
 BONE SPRINGS DIV         9350    14.9    12.6   118     17.2    21.4    80
 EVENING STAR             9200    18.9    29.9    63     27.3    33.3    82
 GRAVE SPRINGS            8550     9.8     3.0   327     18.9    15.5   122
 KIRWIN                   9550    12.0     8.5   141     17.1    16.7   102
 MARQUETTE                8760    13.2     6.4   206     18.4    17.0   108
 MIDDLE POWDER            7760    10.5     6.3   167     15.1    18.4    82
 OWL CREEK                8975     1.2     1.2   100     13.1    10.4   126
 POWDER RIVER PASS        9480     8.0     4.6   174     17.9    18.7    96
 SHELL CREEK              9580    16.4    13.7   120     18.8    19.6    96
 SYLVAN LAKE              8420    11.0    16.0    69     23.8    27.9    85
 SYLVAN ROAD              7120      .0      .4     0*    17.0    22.6    75
 TIMBER CREEK             7950     2.8     1.2   233     15.1    13.5   112
 YOUNTS PEAK              8350     9.7    11.3    86     14.1    21.2    67
                                                -----                  -----
                Basin wide percent of average    106                     90


SHOSHONE RIVER

 BLACKWATER               9780    22.8    27.9    82     23.0    27.8    83
 EVENING STAR             9200    18.9    29.9    63     27.3    33.3    82
 KIRWIN                   9550    12.0     8.5   141     17.1    16.7   102
 MARQUETTE                8760    13.2     6.4   206     18.4    17.0   108
 SYLVAN LAKE              8420    11.0    16.0    69     23.8    27.9    85
 SYLVAN ROAD              7120      .0      .4     0*    17.0    22.6    75
 YOUNTS PEAK              8350     9.7    11.3    86     14.1    21.2    67
                                                -----                  -----
                Basin wide percent of average     87                     85


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     1.5      .0      *    15.0    13.4   112
 BIG GOOSE                7990    11.4     6.6   173     19.9    15.7   127
 BONE SPRINGS DIV         9350    14.9    12.6   118     17.2    21.4    80
 BURGESS JUNCTION         7880    12.4     6.4   194     18.3    17.9   102
 CLOUD PEAK RESERVOIR     9860    19.2    11.5   167     21.8    20.7   105
 DOME LAKE                8880    12.6     6.2   203     21.0    19.8   106
 GRAVE SPRINGS            8550     9.8     3.0   327     18.9    15.5   122
 HANSEN SAWMILL           8360     2.0      .8   250     15.8    13.3   119
 MIDDLE POWDER            7760    10.5     6.3   167     15.1    18.4    82
 POWDER RIVER PASS        9480     8.0     4.6   174     17.9    18.7    96
 SUCKER CREEK             8880    16.4     6.8   241     23.3    20.6   113
 TIE CREEK                6870     2.6      .0      *    20.0    16.4   122
                                                -----                  -----
                Basin wide percent of average    187                    106


BELLE FOURCHE

 BLIND PARK               6890      .8      .0      *    20.1    17.0   118
 COLE CANYON              5910      .0      .0   100*    19.1    12.1   158
 NORTH RAPID CREEK        6130      .2      .0      *    18.3    13.4   137
                                                -----                  -----
                Basin wide percent of average       *                   135


UPPER N. PLATTE RIVER

 COLUMBINE                9160    10.5     6.5   162     30.6    31.6    97
 DIVIDE PEAK              8880    15.1     7.6   199     32.6    26.8   122
 ELK RIVER                8700     5.5     3.4   162     27.3    25.3   108
 JOE WRIGHT              10120    23.6    21.0   112     31.5    33.8    93
 NORTH FRENCH CREEK      10130    43.4    29.3   148     46.0    33.3   138
 OLD BATTLE              10000    42.4    31.1   136     48.1    43.3   111
 SAGE CREEK BASIN         7850      .0     4.4     0     18.4    15.5   119
 SOUTH BRUSH CREEK        8440     6.0     3.6   167     27.9    22.9   122
 TOWER                   10500    43.1    48.2    89     45.5    49.0    93
 WEBBER SPRINGS           9250    20.2    11.8   171     37.4    34.0   110
 WILLOW CREEK PASS        9540    10.4     6.9   151     18.4    18.0   102
                                                -----                  -----
                Basin wide percent of average    127                    109


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    22.9    17.3   132     30.5    30.3   101
 CASPER MTN.              7900    11.2     7.2   156     21.9    23.1    95
 DEADMAN HILL            10220      -M    15.0      *      -M    23.9      *
 DEER PARK                9700    21.9    13.8   159     28.7    30.0    96
 LAPRELE CREEK            8375      .4     1.8    22     19.7    19.3   102
 RENO HILL                8400    14.4     6.0   240     27.3    23.8   115
 ROACH                    9700    18.8     9.3   202     29.9    25.5   117
 SAND LAKE               10050    39.8    31.6   126     41.6    33.2   125
 SOUTH PASS               9040    18.1     9.5   191     26.5    25.4   104
 WINDY PEAK               7900      .6      .6   100*    19.7    16.2   122
                                                -----                  -----
                Basin wide percent of average    153                    108


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100*    20.8    20.5   101
 DIVIDE PEAK              8880    15.1     7.6   199     32.6    26.8   122
 OLD BATTLE              10000    42.4    31.1   136     48.1    43.3   111
 SANDSTONE RS             8150      -M     1.3      *    24.0    24.2    99
 WHISKEY PARK             8950      -M    20.5      *    41.4    37.0   112
                                                -----                  -----
                Basin wide percent of average    149*                   110


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     4.4     5.2    85     13.7    18.0    76
 BLIND BULL SUM           8650    18.9    21.7    87     18.4    27.4    67
 EAST RIM DIVIDE          7930      .1     5.3     2     10.0    15.5    65
 ELKHART PARK G.S.        9400     4.9     6.4    77     12.5    18.3    68
 GROS VENTRE SUMMIT       8750     5.3     6.8    78     13.6    17.0    80
 GUNSIGHT PASS            9820    11.2      -M      *    16.3      -M      *
 KENDALL R.S.             7740      .1      .0      *    12.1    18.1    67
 LOOMIS PARK              8240      .2     5.9     3     14.1    21.9    64
 NEW FORK LAKE            8340      .0      .4     0*     9.3    15.3    61
 POCKET CREEK             9360     7.9      -M      *    15.3      -M      *
 SNIDER BASIN             8060     1.6     3.5    46     16.4    20.0    82
 SPRING CREEK DIVIDE      9000    21.3    20.1   106     25.0    32.5    77
 TRIPLE PEAK              8500    13.9    11.0   126     28.4    31.2    91
                                                -----                  -----
                Basin wide percent of average     82                     74


LOWER GREEN RIVER

 HAMS FORK                7840      .5      .0      *    15.4    16.5    93
 HEWINTA                  9519     3.5     1.8   194     18.0    19.7    91
 HICKERSON PARK           9145      .0      .5     0*    15.8    12.0   132
 HOLE-IN-ROCK             9150      .0      .4     0*    15.4    11.6   133
 INDIAN CREEK             9425    20.6    19.3   107     24.3    31.8    76
 KELLEY R.S.              8180     5.8     5.2   112     19.5    25.6    76
 STEEL CREEK PARK        10200    20.9    15.3   137     22.7    22.5   101
                                                -----                  -----
                Basin wide percent of average    121                     94


UPPER BEAR RIVER

 BUG LAKE                 7950     9.2     6.0   153     21.5    24.5    88
 HAYDEN FORK              9212     1.3     3.7    35     24.9    27.7    90
 KELLEY R.S.              8180     5.8     5.2   112     19.5    25.6    76
 LILY LAKE                9156     7.7     3.4   226     21.1    23.4    90
 MONTE CRISTO             8960    19.2    17.6   109     28.0    33.3    84
 SALT RIVER SUMMIT        7760      .1      .5    20*    17.1    23.5    73
 TRIAL LAKE               9992    18.6    19.0    98     23.0    32.4    71
                                                -----                  -----
                Basin wide percent of average    112                     81

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


 -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.