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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 SUNDAY: MARCH 20 , 2011
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    20.1    17.7   114     22.9    20.6   111
 COTTONWOOD CREEK         7670    26.2    22.5   116     33.0    25.9   127
 GRAND TARGHEE            9260    43.3      -M      *      -M      -M      *
 GRANITE CREEK            6770    20.3    18.3   111     21.5    19.3   111
 GRASSY LAKE              7265    37.1    33.9   109     38.4    34.5   111
 GROS VENTRE SUMMIT       8750    14.1    13.4   105     13.6    12.2   111
 GUNSIGHT PASS            9820    16.0      -M      *    15.6      -M      *
 LEWIS LAKE DIVIDE        7850    37.6    33.8   111       -M    35.2      *
 PHILLIPS BENCH           8200    29.3    27.4   107     29.4    27.7   106
 SALT RIVER SUMMIT        7760    16.6    13.8   120     20.5    17.7   116
 SNAKE RIVER STATION      6920      -M    18.7      *    24.9    21.4   116
 SPRING CREEK DIVIDE      9000    32.5    25.2   129     30.6    25.1   122
 THUMB DIVIDE             7980    20.8    18.1   115     19.1    18.0   106
 TOGWOTEE PASS            9580    26.8    23.5   114     28.4    23.2   122
 TWO OCEAN PLATEAU        9240      -M    26.4      *      -M    26.4      *
 WILLOW CREEK             8380    33.8    28.8   117     37.8    30.5   124
                                                -----                  -----
                Basin wide percent of average    114                    116


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    24.4    22.4   109     23.5    19.1   123
 BLACK BEAR               8170    44.3    37.5   118     41.3    38.2   108
 CANYON                   7870    16.4    13.1   125     17.4    14.7   118
 FISHER CREEK             9100    38.9    33.2   117     37.4    34.5   108
 MADISON PLATEAU          7750    28.2    23.8   118     29.3    25.2   116
 NORTHEAST ENTRANCE       7350    13.2    10.8   122     14.3    12.0   119
 PARKER PEAK              9400    27.2    20.4   133       -M    15.4      *
 SYLVAN LAKE              8420    22.6    21.3   106     26.1    19.9   131
 THUMB DIVIDE             7980    20.8    18.1   115     19.1    18.0   106
 TWO OCEAN PLATEAU        9240      -M    26.4      *      -M    26.4      *
 WHISKEY CREEK            6800    20.0    16.3   123     22.5    19.9   113
 WHITE MILL               8700    26.4    23.0   115     26.6    25.6   104
 WOLVERINE                7650    14.2    11.4   125     13.7    12.2   112
                                                -----                  -----
                Basin wide percent of average    118                    113


WIND RIVER

 BURROUGHS CREEK          8750    14.3    14.0   102     14.9    15.4    97
 CASTLE CREEK             8400     6.6      -M      *     7.2      -M      *
 COLD SPRINGS             9630     7.8     8.3    94      7.7     9.6    80
 DEER PARK                9700    17.4    16.0   109     20.3    20.5    99
 HOBBS PARK              10100    13.6    13.6   100     11.6    11.5   101
 LITTLE WARM              9370    11.9    11.0   108     12.1    12.4    98
 SOUTH PASS               9040    16.2    16.0   101     14.0    17.1    82
 ST. LAWRENCE ALT         8620     4.6     6.8    68      6.5     8.0    81
 TOGWOTEE PASS            9580    26.8    23.5   114     28.4    23.2   122
 TOWNSEND CREEK           8700     8.0     8.0   100     10.2    10.4    98
                                                -----                  -----
                Basin wide percent of average    103                     98


BIGHORN BASIN

 BALD MTN.                9380    20.6    18.3   113     17.1    16.1   106
 BEAR TRAP MEADOW         8200     7.2     5.1   141      7.3     7.4    99
 BLACKWATER               9780    24.6    23.1   106     23.9    19.3   124
 BONE SPRINGS DIV         9350    17.6    15.0   117     14.6    13.4   109
 EVENING STAR             9200    29.6    28.1   105     32.2    24.0   134
 GRAVE SPRINGS            8550     7.7     8.6    90      7.8     9.0    87
 KIRWIN                   9550    10.7    10.5   102     11.7    10.4   113
 MARQUETTE                8760     2.4      -M      *     5.7     8.7    66
 MIDDLE POWDER            7760     8.6    10.7    80     10.4    11.2    93
 OWL CREEK                8975     5.2     5.0   104      5.1     5.2    98
 POWDER RIVER PASS        9480    12.7    10.1   126     14.9    11.4   131
 SHELL CREEK              9580    15.4    13.6   113     14.0    12.2   115
 SYLVAN LAKE              8420    22.6    21.3   106     26.1    19.9   131
 SYLVAN ROAD              7120    15.2    12.3   124     19.3    16.9   114
 TIMBER CREEK             7950     3.6     5.2    69      4.4     6.5    68
 YOUNTS PEAK              8350    16.7    16.3   102     14.4    15.3    94
                                                -----                  -----
                Basin wide percent of average    107                    111


SHOSHONE RIVER

 BLACKWATER               9780    24.6    23.1   106     23.9    19.3   124
 EVENING STAR             9200    29.6    28.1   105     32.2    24.0   134
 KIRWIN                   9550    10.7    10.5   102     11.7    10.4   113
 MARQUETTE                8760     2.4      -M      *     5.7     8.7    66
 SYLVAN LAKE              8420    22.6    21.3   106     26.1    19.9   131
 SYLVAN ROAD              7120    15.2    12.3   124     19.3    16.9   114
 YOUNTS PEAK              8350    16.7    16.3   102     14.4    15.3    94
                                                -----                  -----
                Basin wide percent of average    107                    116


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     7.2     5.1   141      7.3     7.4    99
 BIG GOOSE                7990     7.3     9.2    79      8.9     7.7   116
 BONE SPRINGS DIV         9350    17.6    15.0   117     14.6    13.4   109
 BURGESS JUNCTION         7880     9.7    10.6    92     10.6    11.0    96
 CLOUD PEAK RESERVOIR     9860    14.4    12.1   119     13.2    11.5   115
 DOME LAKE                8880    11.9    11.2   106     11.9    11.8   101
 GRAVE SPRINGS            8550     7.7     8.6    90      7.8     9.0    87
 HANSEN SAWMILL           8360     6.4     6.1   105      7.0     7.4    95
 LITTLE GOOSE             8870     8.1      -M      *    12.4      -M      *
 MIDDLE POWDER            7760     8.6    10.7    80     10.4    11.2    93
 POWDER RIVER PASS        9480    12.7    10.1   126     14.9    11.4   131
 SOLDIER PARK             8720     7.1      -M      *     8.1      -M      *
 SUCKER CREEK             8880    11.6    10.7   108     12.8    12.3   104
 TIE CREEK                6870     6.1     6.2    98      8.9     9.0    99
                                                -----                  -----
                Basin wide percent of average    105                    104


BELLE FOURCHE

 BLIND PARK               6890     9.2     8.6   107     15.4    10.4   148
 COLE CANYON              5910     7.5     6.4   117     10.9     6.2   176
 NORTH RAPID CREEK        6130     8.2     7.7   106     13.1     8.1   162
                                                -----                  -----
                Basin wide percent of average    110                    160


UPPER N. PLATTE RIVER

 CINNABAR PARK            9574    23.3    17.4   134     23.4    18.9   124
 COLUMBINE                9160    31.5    24.3   130     32.6    23.7   138
 DIVIDE PEAK              8880    21.7    18.4   118     25.4    19.4   131
 ELK RIVER                8700    23.9    18.3   131     25.1    18.3   137
 JOE WRIGHT              10120    29.0    19.7   147     32.9    23.0   143
 NORTH FRENCH CREEK      10130    41.0    26.7   154     32.3    23.0   140
 OLD BATTLE              10000    39.2    30.2   130     29.1    32.5    90
 SAGE CREEK BASIN         7850    19.4    10.7   181     17.2    11.3   152
 SOUTH BRUSH CREEK        8440    17.7    12.2   145     20.6    15.1   136
 TOWER                   10500    51.0    42.6   120     46.1    36.1   128
 WEBBER SPRINGS           9250    28.6    25.1   114     33.4    25.0   134
 WILLOW CREEK PASS        9540    18.3    11.0   166     17.0    11.9   143
                                                -----                  -----
                Basin wide percent of average    134                    130


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    29.1    21.8   133     28.9    20.3   142
 CASPER MTN.              7900    10.6    13.0    82     13.1    12.9   102
 DEADMAN HILL            10220    20.4    14.9   137     20.8    15.5   134
 DEER PARK                9700    17.4    16.0   109     20.3    20.5    99
 LAPRELE CREEK            8375    11.8    10.4   113     13.0    11.6   112
 RENO HILL                8400    13.2    12.6   105     15.4    13.4   115
 ROACH                    9700    19.4    15.8   123     22.6    17.3   131
 SAND LAKE               10050    34.3    30.0   114     32.7    22.2   147
 SOUTH PASS               9040    16.2    16.0   101     14.0    17.1    82
 WINDY PEAK               7900     9.9     7.5   132     12.3     9.7   127
                                                -----                  -----
                Basin wide percent of average    115                    120


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440      -M    11.5      *    13.1    14.6    90
 DIVIDE PEAK              8880    21.7    18.4   118     25.4    19.4   131
 OLD BATTLE              10000    39.2    30.2   130     29.1    32.5    90
 SANDSTONE RS             8150    15.1    14.7   103     23.8    17.7   134
 WHISKEY PARK             8950      -M    28.4      *    37.2    26.8   139
                                                -----                  -----
                Basin wide percent of average    120                    116


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    13.9    13.7   101     14.1    12.7   111
 BLIND BULL SUM           8650    28.9    26.6   109     20.6    21.2    97
 EAST RIM DIVIDE          7930    14.7    12.5   118     12.4    11.5   108
 ELKHART PARK G.S.        9400    12.4    12.7    98     12.3    12.5    98
 GROS VENTRE SUMMIT       8750    14.1    13.4   105     13.6    12.2   111
 GUNSIGHT PASS            9820    16.0      -M      *    15.6      -M      *
 KENDALL R.S.             7740    12.9    14.3    90     14.4    14.0   103
 LOOMIS PARK              8240    19.3    16.7   116     19.3    16.6   116
 NEW FORK LAKE            8340    12.1    10.8   112     11.0    10.7   103
 POCKET CREEK             9360    10.9      -M      *    13.2      -M      *
 SNIDER BASIN             8060    19.6    14.0   140     18.4    15.3   120
 SPRING CREEK DIVIDE      9000    32.5    25.2   129     30.6    25.1   122
 TRIPLE PEAK              8500    29.6    23.8   124     31.0    23.5   132
                                                -----                  -----
                Basin wide percent of average    114                    113


LOWER GREEN RIVER

 HAMS FORK                7840    16.5    12.4   133     14.9    11.6   128
 HEWINTA                  9519    12.3    10.9   113     16.3    13.4   122
 HICKERSON PARK           9145     8.3     6.8   122      9.6     7.2   133
 HOLE-IN-ROCK             9150     8.1     6.6   123     10.0     6.8   147
 INDIAN CREEK             9425    29.5    26.1   113     26.0    23.9   109
 KELLEY R.S.              8180    19.7    16.1   122     22.6    19.2   118
 STEEL CREEK PARK        10200    13.4    14.7    91     18.8    14.8   127
                                                -----                  -----
                Basin wide percent of average    115                    122


UPPER BEAR RIVER

 BUG LAKE                 7950    27.7    19.8   140     27.3    18.2   150
 HAYDEN FORK              9212    22.0    15.4   143     27.5    19.6   140
 KELLEY R.S.              8180    19.7    16.1   122     22.6    19.2   118
 LILY LAKE                9156    19.9    12.3   162     20.6    16.2   127
 MONTE CRISTO             8960    35.0    28.5   123     34.3    24.0   143
 SALT RIVER SUMMIT        7760    16.6    13.8   120     20.5    17.7   116
 TRIAL LAKE               9992    33.3    23.8   140     32.0    23.5   136
                                                -----                  -----
                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.