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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 24 , 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     2.8     0     17.0    26.3    65
 COTTONWOOD CREEK         7670    10.7     9.9   108     29.0    34.8    83
 GRAND TARGHEE            9260    45.1      -M      *    37.3      -M      *
 GRANITE CREEK            6770      .4     4.6     9     16.1    24.2    67
 GRASSY LAKE              7265    13.4    21.2    63     32.5    43.9    74
 GROS VENTRE SUMMIT       8750     5.2     7.2    72     13.4    17.0    79
 GUNSIGHT PASS            9820    11.1      -M      *    16.2      -M      *
 LEWIS LAKE DIVIDE        7850    13.7    24.3    56     27.3    44.4    61
 PHILLIPS BENCH           8200    12.9    19.6    66     25.5    35.7    71
 SALT RIVER SUMMIT        7760      .2     1.0    20*    16.9    23.4    72
 SNAKE RIVER STATION      6920      .0     1.6     0*    20.4    27.6    74
 SPRING CREEK DIVIDE      9000    21.3    20.6   103     24.9    32.4    77
 THUMB DIVIDE             7980      .3     6.2     5     17.2    24.1    71
 TOGWOTEE PASS            9580    23.1    25.5    91       -M    31.7      *
 TWO OCEAN PLATEAU        9240    25.2    28.7    88     23.3    35.2    66
 WILLOW CREEK             8380    19.3    20.6    94     37.4    41.4    90
                                                -----                  -----
                Basin wide percent of average     75                     73


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    16.9    23.8    71     18.5    26.1    71
 BLACK BEAR               8170    22.6    32.7    69     32.8    49.1    67
 CANYON                   7870     1.8     4.0    45     14.9    19.7    76
 FISHER CREEK             9100    25.0    33.7    74     30.3    45.4    67
 MADISON PLATEAU          7750    11.7    14.9    79     26.1    33.2    79
 NORTHEAST ENTRANCE       7350      .0     1.2     0     12.4    16.8    74
 PARKER PEAK              9400    17.9    22.1    81     17.5    22.2    79
 SYLVAN LAKE              8420    11.0    16.5    67     23.6    27.7    85
 THUMB DIVIDE             7980      .3     6.2     5     17.2    24.1    71
 TWO OCEAN PLATEAU        9240    25.2    28.7    88     23.3    35.2    66
 WHISKEY CREEK            6800     2.7     5.5    49     16.7    26.4    63
 WHITE MILL               8700    16.5    22.1    75     21.1    34.1    62
 WOLVERINE                7650      .0      .9     0*    10.0    17.5    57
                                                -----                  -----
                Basin wide percent of average     71                     70


WIND RIVER

 BURROUGHS CREEK          8750     9.6     7.1   135     14.0    21.7    65
 COLD SPRINGS             9630     7.9     1.6   494     19.1    16.3   117
 DEER PARK                9700    21.8    14.7   148     28.5    29.9    95
 HOBBS PARK              10100    26.7    14.1   189     28.3    20.0   142
 LITTLE WARM              9370     8.7     4.4   198     15.4    19.2    80
 SOUTH PASS               9040    18.1     9.8   185     26.3    25.3   104
 ST. LAWRENCE ALT         8620     7.0     1.4   500     20.2    14.4   140
 TOGWOTEE PASS            9580    23.1    25.5    91       -M    31.7      *
 TOWNSEND CREEK           8700    14.3     3.3   433     24.9    18.0   138
                                                -----                  -----
                Basin wide percent of average    168                    107


BIGHORN BASIN

 BALD MTN.                9380    18.0    20.8    87     17.2    24.4    70
 BEAR TRAP MEADOW         8200      .0      .0   100*    13.8    13.3   104
 BLACKWATER               9780    22.6    28.1    80     22.8    27.7    82
 BONE SPRINGS DIV         9350    13.7    13.0   105     16.4    21.3    77
 EVENING STAR             9200    18.6    30.3    61     26.8    33.1    81
 GRAVE SPRINGS            8550     9.2     3.2   288     17.9    15.4   116
 KIRWIN                   9550    11.8     8.8   134     16.9    16.6   102
 MARQUETTE                8760    12.9     6.6   195     18.2    16.9   108
 MIDDLE POWDER            7760     9.6     6.8   141     13.9    18.3    76
 OWL CREEK                8975      .6     1.2    50     12.4    10.3   120
 POWDER RIVER PASS        9480     6.4     5.0   128     16.0    18.6    86
 SHELL CREEK              9580    15.0    14.1   106     17.3    19.5    89
 SYLVAN LAKE              8420    11.0    16.5    67     23.6    27.7    85
 SYLVAN ROAD              7120      .0      .5     0*    16.6    22.5    74
 TIMBER CREEK             7950     2.4     1.2   200     14.7    13.4   110
 YOUNTS PEAK              8350     9.5    11.9    80     13.9    21.1    66
                                                -----                  -----
                Basin wide percent of average     96                     87


SHOSHONE RIVER

 BLACKWATER               9780    22.6    28.1    80     22.8    27.7    82
 EVENING STAR             9200    18.6    30.3    61     26.8    33.1    81
 KIRWIN                   9550    11.8     8.8   134     16.9    16.6   102
 MARQUETTE                8760    12.9     6.6   195     18.2    16.9   108
 SYLVAN LAKE              8420    11.0    16.5    67     23.6    27.7    85
 SYLVAN ROAD              7120      .0      .5     0*    16.6    22.5    74
 YOUNTS PEAK              8350     9.5    11.9    80     13.9    21.1    66
                                                -----                  -----
                Basin wide percent of average     84                     84


POWDER-TONGUE

 BEAR TRAP MEADOW         8200      .0      .0   100*    13.8    13.3   104
 BIG GOOSE                7990    11.1     6.9   161     19.3    15.6   124
 BONE SPRINGS DIV         9350    13.7    13.0   105     16.4    21.3    77
 BURGESS JUNCTION         7880    12.0     6.7   179     17.5    17.8    98
 CLOUD PEAK RESERVOIR     9860    18.5    12.0   154     21.2    20.5   103
 DOME LAKE                8880    11.9     6.8   175     20.2    19.7   103
 GRAVE SPRINGS            8550     9.2     3.2   288     17.9    15.4   116
 HANSEN SAWMILL           8360     2.0      .8   250     15.4    13.2   117
 MIDDLE POWDER            7760     9.6     6.8   141     13.9    18.3    76
 POWDER RIVER PASS        9480     6.4     5.0   128     16.0    18.6    86
 SUCKER CREEK             8880    15.6     7.2   217     22.4    20.5   109
 TIE CREEK                6870     2.7      .1  2700*    19.4    16.3   119
                                                -----                  -----
                Basin wide percent of average    165                    101


BELLE FOURCHE

 BLIND PARK               6890      .0      .0   100*    18.9    16.9   112
 COLE CANYON              5910      .0      .0   100*    18.0    12.0   150
 NORTH RAPID CREEK        6130      .0      .1     0*    17.8    13.3   134
                                                -----                  -----
                Basin wide percent of average      0*                   130


UPPER N. PLATTE RIVER

 COLUMBINE                9160    10.3     7.2   143     30.7    31.5    97
 DIVIDE PEAK              8880    14.7     8.1   181     32.0    26.7   120
 ELK RIVER                8700     5.5     3.8   145     27.3    25.3   108
 JOE WRIGHT              10120      -M    21.4      *      -M    33.7      *
 NORTH FRENCH CREEK      10130    43.0    29.9   144     45.3    33.2   136
 OLD BATTLE              10000    42.5    31.7   134     47.4    43.2   110
 SAGE CREEK BASIN         7850      .0     4.7     0     17.7    15.5   114
 SOUTH BRUSH CREEK        8440     5.4     3.8   142     27.3    22.8   120
 TOWER                   10500    43.4    48.7    89     45.4    48.9    93
 WEBBER SPRINGS           9250    20.6    12.5   165     36.9    33.9   109
 WILLOW CREEK PASS        9540    10.6     7.4   143     18.5    17.9   103
                                                -----                  -----
                Basin wide percent of average    124                    110


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    22.7    18.0   126     30.2    30.2   100
 CASPER MTN.              7900    11.0     7.7   143     21.3    22.9    93
 DEADMAN HILL            10220      -M    15.4      *      -M    23.8      *
 DEER PARK                9700    21.8    14.7   148     28.5    29.9    95
 LAPRELE CREEK            8375      .0     2.0     0     19.3    19.2   101
 RENO HILL                8400    14.6     6.3   232     27.1    23.7   114
 ROACH                    9700    18.8     9.7   194     29.8    25.4   117
 SAND LAKE               10050    39.5    32.2   123     41.4    33.1   125
 SOUTH PASS               9040    18.1     9.8   185     26.3    25.3   104
 WINDY PEAK               7900      .4      .7    57*    19.8    16.1   123
                                                -----                  -----
                Basin wide percent of average    145                    108


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      .0      .0   100*    20.4    20.4   100
 DIVIDE PEAK              8880    14.7     8.1   181     32.0    26.7   120
 OLD BATTLE              10000    42.5    31.7   134     47.4    43.2   110
 SANDSTONE RS             8150      -M     1.5      *    23.4    24.1    97
 WHISKEY PARK             8950    28.6    21.3   134     40.9    36.9   111
                                                -----                  -----
                Basin wide percent of average    140                    108


UPPER GREEN RIVER

 BIG SANDY OPENING        9080     4.3     5.6    77     13.6    17.9    76
 BLIND BULL SUM           8650    19.0    22.1    86     18.2    27.3    67
 EAST RIM DIVIDE          7930      .2     5.8     3     10.0    15.5    65
 ELKHART PARK G.S.        9400     5.0     6.7    75     12.5    18.2    69
 GROS VENTRE SUMMIT       8750     5.2     7.2    72     13.4    17.0    79
 GUNSIGHT PASS            9820    11.1      -M      *    16.2      -M      *
 KENDALL R.S.             7740      .2      .0      *    12.0    18.1    66
 LOOMIS PARK              8240      .2     6.4     3     14.1    21.8    65
 NEW FORK LAKE            8340      .0      .8     0*    10.0    15.2    66
 POCKET CREEK             9360     7.6      -M      *    15.0      -M      *
 SNIDER BASIN             8060     1.9     4.0    48     16.4    19.9    82
 SPRING CREEK DIVIDE      9000    21.3    20.6   103     24.9    32.4    77
 TRIPLE PEAK              8500    14.0    11.7   120     28.3    31.1    91
                                                -----                  -----
                Basin wide percent of average     78                     74


LOWER GREEN RIVER

 HAMS FORK                7840      .4      .0      *    15.2    16.4    93
 HEWINTA                  9519     3.3     2.1   157     18.0    19.7    91
 HICKERSON PARK           9145      .1      .6    17*    15.9    12.0   133
 HOLE-IN-ROCK             9150      .0      .5     0*    15.4    11.6   133
 INDIAN CREEK             9425    20.5    19.9   103     24.1    31.7    76
 KELLEY R.S.              8180     5.6     5.6   100     19.2    25.5    75
 STEEL CREEK PARK        10200    21.0    15.7   134     22.7    22.4   101
                                                -----                  -----
                Basin wide percent of average    115                     94


UPPER BEAR RIVER

 BUG LAKE                 7950     8.4     6.5   129     20.7    24.4    85
 HAYDEN FORK              9212     1.0     4.1    24     24.6    27.6    89
 KELLEY R.S.              8180     5.6     5.6   100     19.2    25.5    75
 LILY LAKE                9156     7.5     3.7   203     20.9    23.3    90
 MONTE CRISTO             8960    18.2    18.2   100     27.0    33.2    81
 SALT RIVER SUMMIT        7760      .2     1.0    20*    16.9    23.4    72
 TRIAL LAKE               9992    18.1    19.5    93     22.5    32.3    70
                                                -----                  -----
                Basin wide percent of average    101                     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.