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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: MARCH 12 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    18.2    17.1   106     21.2    19.8   107
 COTTONWOOD CREEK         7670    23.9    20.8   115     31.7    24.7   128
 GRAND TARGHEE            9260    41.7      -M      *      -M      -M      *
 GRANITE CREEK            6770    19.3    17.5   110     20.6    18.5   111
 GRASSY LAKE              7265    34.1    32.1   106     36.1    33.0   109
 GROS VENTRE SUMMIT       8750    13.5    12.6   107     13.0    11.6   112
 GUNSIGHT PASS            9820    15.3      -M      *    15.1      -M      *
 LEWIS LAKE DIVIDE        7850    33.6    32.1   105       -M    33.7      *
 PHILLIPS BENCH           8200    27.2    26.0   105     27.8    26.4   105
 SALT RIVER SUMMIT        7760    15.6    13.1   119     19.6    16.9   116
 SNAKE RIVER STATION      6920      -M    17.9      *    23.3    20.6   113
 SPRING CREEK DIVIDE      9000    30.6    23.9   128     29.4    24.0   123
 THUMB DIVIDE             7980    18.4    17.0   108     17.8    17.2   103
 TOGWOTEE PASS            9580    25.7    22.3   115     27.2    22.1   123
 TWO OCEAN PLATEAU        9240      -M    25.1      *      -M    25.1      *
 WILLOW CREEK             8380    31.5    27.4   115     35.7    29.0   123
                                                -----                  -----
                Basin wide percent of average    111                    115


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    22.3    21.5   104     21.3    18.3   116
 BLACK BEAR               8170    38.9    35.9   108     37.3    36.1   103
 CANYON                   7870    14.9    12.4   120     15.9    13.9   114
 FISHER CREEK             9100    35.5    31.9   111     34.3    32.9   104
 MADISON PLATEAU          7750    24.3    22.8   107     26.3    23.8   111
 NORTHEAST ENTRANCE       7350    12.2    10.5   116     13.5    11.5   117
 PARKER PEAK              9400    25.3    19.6   129       -M    14.7      *
 SYLVAN LAKE              8420    21.0    20.3   103     24.3    19.1   127
 THUMB DIVIDE             7980    18.4    17.0   108     17.8    17.2   103
 TWO OCEAN PLATEAU        9240      -M    25.1      *      -M    25.1      *
 WHISKEY CREEK            6800    17.7    15.7   113     20.1    18.8   107
 WHITE MILL               8700    24.4    22.0   111     24.9    24.4   102
 WOLVERINE                7650    13.2    11.3   117     13.1    11.8   111
                                                -----                  -----
                Basin wide percent of average    111                    109


WIND RIVER

 BURROUGHS CREEK          8750    13.7    13.5   101     14.3    14.7    97
 CASTLE CREEK             8400     6.2      -M      *     7.0      -M      *
 COLD SPRINGS             9630     7.7     7.9    97      7.3     9.0    81
 DEER PARK                9700    16.7    15.4   108     19.6    19.4   101
 HOBBS PARK              10100    12.9    13.0    99     11.2    10.7   105
 LITTLE WARM              9370    10.9    10.4   105     11.0    11.7    94
 SOUTH PASS               9040    15.8    15.3   103     13.8    16.1    86
 ST. LAWRENCE ALT         8620     4.4     6.5    68      6.1     7.5    81
 TOGWOTEE PASS            9580    25.7    22.3   115     27.2    22.1   123
 TOWNSEND CREEK           8700     7.7     7.6   101      9.9     9.7   102
                                                -----                  -----
                Basin wide percent of average    103                    100


BIGHORN BASIN

 BALD MTN.                9380    20.0    17.3   116     16.5    15.2   109
 BEAR TRAP MEADOW         8200     7.0     4.9   143      7.1     6.9   103
 BLACKWATER               9780    22.9    22.1   104     22.3    18.4   121
 BONE SPRINGS DIV         9350    16.7    14.2   118     13.8    12.6   110
 EVENING STAR             9200    27.9    26.9   104     30.5    23.1   132
 GRAVE SPRINGS            8550     7.4     8.0    93      7.5     8.5    88
 KIRWIN                   9550    10.1    10.0   101     11.1     9.9   112
 MARQUETTE                8760     2.4      -M      *     5.4     8.1    67
 MIDDLE POWDER            7760     8.4     9.9    85     10.1    10.5    96
 OWL CREEK                8975     5.1     4.6   111      5.1     4.8   106
 POWDER RIVER PASS        9480    12.2     9.5   128     14.1    10.8   131
 SHELL CREEK              9580    14.5    12.7   114     13.1    11.6   113
 SYLVAN LAKE              8420    21.0    20.3   103     24.3    19.1   127
 SYLVAN ROAD              7120    14.1    12.0   118     18.1    16.3   111
 TIMBER CREEK             7950     3.4     4.7    72      4.2     6.0    70
 YOUNTS PEAK              8350    15.6    15.6   100     13.5    14.5    93
                                                -----                  -----
                Basin wide percent of average    107                    110


SHOSHONE RIVER

 BLACKWATER               9780    22.9    22.1   104     22.3    18.4   121
 EVENING STAR             9200    27.9    26.9   104     30.5    23.1   132
 KIRWIN                   9550    10.1    10.0   101     11.1     9.9   112
 MARQUETTE                8760     2.4      -M      *     5.4     8.1    67
 SYLVAN LAKE              8420    21.0    20.3   103     24.3    19.1   127
 SYLVAN ROAD              7120    14.1    12.0   118     18.1    16.3   111
 YOUNTS PEAK              8350    15.6    15.6   100     13.5    14.5    93
                                                -----                  -----
                Basin wide percent of average    104                    114


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     7.0     4.9   143      7.1     6.9   103
 BIG GOOSE                7990     6.8     8.5    80      8.4     7.2   117
 BONE SPRINGS DIV         9350    16.7    14.2   118     13.8    12.6   110
 BURGESS JUNCTION         7880     9.4     9.8    96     10.2    10.3    99
 CLOUD PEAK RESERVOIR     9860    13.6    11.2   121     12.2    10.7   114
 DOME LAKE                8880    11.0    10.4   106     11.1    11.1   100
 GRAVE SPRINGS            8550     7.4     8.0    93      7.5     8.5    88
 HANSEN SAWMILL           8360     6.0     5.6   107      6.6     6.9    96
 LITTLE GOOSE             8870     7.6      -M      *    11.8      -M      *
 MIDDLE POWDER            7760     8.4     9.9    85     10.1    10.5    96
 POWDER RIVER PASS        9480    12.2     9.5   128     14.1    10.8   131
 SOLDIER PARK             8720     6.2      -M      *     7.6      -M      *
 SUCKER CREEK             8880    11.1    10.0   111     12.2    11.4   107
 TIE CREEK                6870     6.0     5.7   105      8.6     8.5   101
                                                -----                  -----
                Basin wide percent of average    107                    106


BELLE FOURCHE

 BLIND PARK               6890     9.5     8.1   117     15.2     9.9   154
 COLE CANYON              5910     7.4     6.1   121     10.8     5.9   183
 NORTH RAPID CREEK        6130     8.6     7.3   118     12.9     7.9   163
                                                -----                  -----
                Basin wide percent of average    119                    164


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    22.0    16.8   131     22.2    18.2   122
 COLUMBINE                9160    31.1    23.4   133     31.1    22.5   138
 DIVIDE PEAK              8880    20.1    17.2   117     24.1    18.4   131
 ELK RIVER                8700    22.5    17.4   129     23.7    17.4   136
 JOE WRIGHT              10120    25.4    18.6   137     30.2    21.8   139
 NORTH FRENCH CREEK      10130    39.1    24.9   157     32.2    21.8   148
 OLD BATTLE              10000    37.5    28.6   131     28.9    30.8    94
 SAGE CREEK BASIN         7850    18.6    10.0   186     16.6    10.7   155
 SOUTH BRUSH CREEK        8440    16.6    11.3   147     19.5    14.3   136
 TOWER                   10500    48.9    40.4   121     45.9    34.4   133
 WEBBER SPRINGS           9250    27.4    23.7   116     32.3    23.7   136
 WILLOW CREEK PASS        9540    16.3    10.4   157     15.3    11.2   137
                                                -----                  -----
                Basin wide percent of average    134                    131


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    27.8    20.6   135     27.8    19.0   146
 CASPER MTN.              7900    10.2    12.2    84     12.8    12.1   106
 DEADMAN HILL            10220    18.7    14.0   134     19.2    14.5   132
 DEER PARK                9700    16.7    15.4   108     19.6    19.4   101
 LAPRELE CREEK            8375    11.6     9.8   118     12.9    10.9   118
 RENO HILL                8400    13.0    11.6   112     15.1    12.5   121
 ROACH                    9700    18.1    15.0   121     21.5    16.3   132
 SAND LAKE               10050    32.8    27.9   118     31.3    20.9   150
 SOUTH PASS               9040    15.8    15.3   103     13.8    16.1    86
 WINDY PEAK               7900     9.8     6.9   142     12.1     9.1   133
                                                -----                  -----
                Basin wide percent of average    117                    123


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M    10.9      *      -M    13.6      *
 DIVIDE PEAK              8880    20.1    17.2   117     24.1    18.4   131
 OLD BATTLE              10000    37.5    28.6   131     28.9    30.8    94
 SANDSTONE RS             8150    14.0    13.9   101     22.8    16.9   135
 WHISKEY PARK             8950      -M    26.5      *    35.6    25.3   141
                                                -----                  -----
                Basin wide percent of average    120                    122


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    13.3    13.1   102     13.4    12.1   111
 BLIND BULL SUM           8650    26.8    25.2   106     19.4    20.2    96
 EAST RIM DIVIDE          7930    13.9    11.9   117     12.0    11.0   109
 ELKHART PARK G.S.        9400    11.9    12.1    98     11.9    11.8   101
 GROS VENTRE SUMMIT       8750    13.5    12.6   107     13.0    11.6   112
 GUNSIGHT PASS            9820    15.3      -M      *    15.1      -M      *
 KENDALL R.S.             7740    12.5    13.6    92     13.9    13.4   104
 LOOMIS PARK              8240    18.5    15.9   116     18.8    15.9   118
 NEW FORK LAKE            8340    11.7    10.3   114     10.8    10.3   105
 POCKET CREEK             9360    10.5      -M      *    12.9      -M      *
 SNIDER BASIN             8060    18.7    13.4   140     17.8    14.6   122
 SPRING CREEK DIVIDE      9000    30.6    23.9   128     29.4    24.0   123
 TRIPLE PEAK              8500    27.3    22.6   121     29.4    22.3   132
                                                -----                  -----
                Basin wide percent of average    114                    114


LOWER GREEN RIVER

 HAMS FORK                7840    15.6    12.0   130     14.3    11.1   129
 HEWINTA                  9519    11.3    10.1   112     14.6    12.6   116
 HICKERSON PARK           9145     7.2     6.3   114      8.5     6.8   125
 HOLE-IN-ROCK             9150     7.3     6.2   118      8.9     6.3   141
 INDIAN CREEK             9425    28.1    24.5   115     25.1    22.7   111
 KELLEY R.S.              8180    18.9    15.3   124     21.9    18.3   120
 STEEL CREEK PARK        10200    14.9    13.8   108     17.4    14.0   124
                                                -----                  -----
                Basin wide percent of average    117                    121


UPPER BEAR RIVER

 BUG LAKE                 7950    26.4    18.7   141     26.3    17.3   152
 HAYDEN FORK              9212    20.5    14.5   141     26.1    18.5   141
 KELLEY R.S.              8180    18.9    15.3   124     21.9    18.3   120
 LILY LAKE                9156    18.0    11.7   154     19.2    15.3   125
 MONTE CRISTO             8960    33.0    27.0   122     33.0    22.8   145
 SALT RIVER SUMMIT        7760    15.6    13.1   119     19.6    16.9   116
 TRIAL LAKE               9992    31.6    22.5   140     30.6    22.3   137
                                                -----                  -----
                Basin wide percent of average    134                    134

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


 -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.