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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: MARCH 20 , 2012
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    19.4    17.7   110     23.5    20.6   114
 BLACK BEAR               8170    38.5    37.5   103     36.8    38.2    96
 BLIND BULL SUM           8650    21.8    26.6    82     16.7    21.2    79
 COTTONWOOD CREEK         7670    18.6    22.5    83     23.8    25.9    92
 EAST RIM DIVIDE          7930    11.0    12.5    88     11.2    11.5    97
 GRAND TARGHEE            9260    35.7      -M      *    28.3      -M      *
 GRANITE CREEK            6770    15.7    18.3    86     16.3    19.3    84
 GRASSY LAKE              7265    32.5    33.9    96     35.8    34.5   104
 GROS VENTRE SUMMIT       8750     9.7    13.4    72     10.1    12.2    83
 GUNSIGHT PASS            9820    12.5      -M      *    13.3      -M      *
 LEWIS LAKE DIVIDE        7850    30.6    33.8    91     32.7    35.2    93
 PHILLIPS BENCH           8200    23.6    27.4    86     24.8    27.7    90
 SALT RIVER SUMMIT        7760    10.3    13.8    75     10.9    17.7    62
 SNAKE RIVER STATION      6920    17.0    18.7    91     23.9    21.4   112
 SPRING CREEK DIVIDE      9000    22.0    25.2    87     21.7    25.1    86
 THUMB DIVIDE             7980    16.2    18.1    90     17.3    18.0    96
 TOGWOTEE PASS            9580    21.3    23.5    91     23.1    23.2   100
 TWO OCEAN PLATEAU        9240    31.5    26.4   119     26.7    26.4   101
 WILLOW CREEK             8380    25.1    28.8    87     30.3    30.5    99
 YOUNTS PEAK              8350    16.0    16.3    98     15.2    15.3    99
                                                -----                  -----
                Basin wide percent of average     92                     95


MADISON-GALLATIN

 BLACK BEAR               8170    38.5    37.5   103     36.8    38.2    96
 CANYON                   7870    12.4    13.1    95     14.0    14.6    96
 MADISON PLATEAU          7750    24.1    23.8   101     28.2    25.2   112
 WEST YELLOWSTONE         6700    11.3    12.4    91     16.3    12.1   135
 WHISKEY CREEK            6800    16.2    16.3    99     21.1    19.9   106
                                                -----                  -----
                Basin wide percent of average     99                    106


YELLOWSTONE

 BEARTOOTH LAKE           9360    23.6    22.4   105     23.0    19.1   120
 BURNT MTN                5880     4.2     5.8    72     11.3    13.5    84
 CANYON                   7870    12.4    13.1    95     14.0    14.6    96
 COLE CREEK               7850    14.0    14.2    99     11.3    14.7    77
 EVENING STAR             9200    28.3    28.1   101     30.5    24.0   127
 FISHER CREEK             9100    33.7    33.2   102     32.2    34.5    93
 NORTHEAST ENTRANCE       7350    10.1    10.8    94     12.4    12.0   103
 PARKER PEAK              9400    22.3    20.4   109     22.0    15.4   143
 SYLVAN LAKE              8420    18.7    21.3    88     23.8    19.9   120
 THUMB DIVIDE             7980    16.2    18.1    90     17.3    18.0    96
 TWO OCEAN PLATEAU        9240    31.5    26.4   119     26.7    26.4   101
 WHITE MILL               8700    21.7    23.0    94     22.5    25.6    88
 WOLVERINE                7650    12.0    11.4   105     12.9    12.2   106
                                                -----                  -----
                Basin wide percent of average    100                    104


WIND RIVER

 BURROUGHS CREEK          8750    13.8    14.0    99     14.2    15.4    92
 CASTLE CREEK             8400     7.5      -M      *     8.8      -M      *
 COLD SPRINGS             9630     7.9     8.3    95      9.2     9.6    96
 DEER PARK                9700    11.0    16.0    69     16.4    20.5    80
 HOBBS PARK              10100    13.9    13.6   102     12.7    11.5   110
 KIRWIN                   9550    12.0    10.5   114     14.0    10.4   135
 LITTLE WARM              9370     8.7    11.0    79     10.8    12.4    87
 OWL CREEK                8975     4.7     5.0    94      5.6     5.2   108
 SOUTH PASS               9040    13.0    16.0    81     13.2    17.1    77
 ST. LAWRENCE ALT         8620     4.0     6.8    59      7.4     8.0    92
 TOGWOTEE PASS            9580    21.3    23.5    91     23.1    23.2   100
 TOWNSEND CREEK           8700     8.0     8.0   100     11.0    10.4   106
                                                -----                  -----
                Basin wide percent of average     89                     96


BIGHORN BASIN

 BALD MTN.                9380    20.6    18.3   113     15.1    16.1    94
 BEAR TRAP MEADOW         8200     8.4     5.1   165      8.7     7.4   118
 BONE SPRINGS DIV         9350    19.2    15.0   128     15.0    13.4   112
 GRAVE SPRINGS            8550     8.5     8.6    99     10.0     9.0   111
 KIRWIN                   9550    12.0    10.5   114     14.0    10.4   135
 MARQUETTE                8760     9.1      -M      *    11.6     8.7   133
 MIDDLE POWDER            7760    10.6    10.7    99     11.1    11.2    99
 OWL CREEK                8975     4.7     5.0    94      5.6     5.2   108
 POWDER RIVER PASS        9480    12.3    10.1   122     14.8    11.4   130
 SHELL CREEK              9580    17.9    13.6   132     15.5    12.2   127
 TIMBER CREEK             7950     4.0     5.2    77      8.7     6.5   134
                                                -----                  -----
                Basin wide percent of average    116                    117


SHOSHONE RIVER

 BLACKWATER               9780    23.9    23.1   103     23.3    19.3   121
 EVENING STAR             9200    28.3    28.1   101     30.5    24.0   127
 MARQUETTE                8760     9.1      -M      *    11.6     8.7   133
 SYLVAN ROAD              7120    12.5    12.3   102     17.6    16.9   104
 YOUNTS PEAK              8350    16.0    16.3    98     15.2    15.3    99
                                                -----                  -----
                Basin wide percent of average    101                    117


POWDER RIVER

 BEAR TRAP MEADOW         8200     8.4     5.1   165      8.7     7.4   118
 CLOUD PEAK RESERVOIR     9860    15.8    12.1   131     14.9    11.5   130
 GRAVE SPRINGS            8550     8.5     8.6    99     10.0     9.0   111
 HANSEN SAWMILL           8360     5.4     6.1    89      8.4     7.4   114
 MIDDLE POWDER            7760    10.6    10.7    99     11.1    11.2    99
 POWDER RIVER PASS        9480    12.3    10.1   122     14.8    11.4   130
 SOLDIER PARK             8720    12.7      -M      *     9.7      -M      *
                                                -----                  -----
                Basin wide percent of average    116                    117


TONGUE RIVER

 BIG GOOSE                7990     9.1     9.2    99     13.5     7.7   175
 BONE SPRINGS DIV         9350    19.2    15.0   128     15.0    13.4   112
 BURGESS JUNCTION         7880    11.9    10.6   112     14.0    11.0   127
 DOME LAKE                8880    14.3    11.2   128     14.2    11.8   120
 LITTLE GOOSE             8870    10.5      -M      *    15.4      -M      *
 SUCKER CREEK             8880    13.5    10.7   126     14.7    12.2   120
 TIE CREEK                6870     5.0     6.2    81     13.3     9.0   148
                                                -----                  -----
                Basin wide percent of average    116                    130


BELLE FOURCHE

 COLE CANYON              5910     4.4     6.4    69      8.1     6.2   131
                                                -----                  -----
                Basin wide percent of average     69                    131


CHEYENNE RIVER BASIN

 BLIND PARK               6890     5.0     8.6    58      9.9    10.4    95
 NORTH RAPID CREEK        6130     6.0     7.7    78      7.8     8.1    96
                                                -----                  -----
                Basin wide percent of average     67                     96


UPPER N. PLATTE

 ARAPAHOE                 4020      -M      -M      *      -M      -M      *
 BLACKHALL MTN            9820    21.1      -M      *    22.9      -M      *
 COLUMBINE                9160    17.1    24.3    70     19.1    23.7    81
 DIVIDE PEAK              8880    13.8    18.4    75     18.5    19.4    95
 JOE WRIGHT              10120    12.9    19.7    65     18.4    23.0    80
 LAPRELE CREEK            8375     8.8    10.4    85     11.5    11.6    99
 NORTH FRENCH CREEK      10130    19.0    26.7    71     19.1    23.0    83
 NEVER SUMMER            10280    11.6    18.7    62     10.9    21.9    50
 OLD BATTLE              10000    22.1    30.2    73     26.6    32.5    82
 RAWAH                    9020     7.1    13.9    51     10.7    15.2    70
 SAGE CREEK BASIN         7850    10.5    10.7    98     10.2    11.3    90
 SAND LAKE               10050    22.7    30.0    76     22.5    22.2   101
 SOUTH BRUSH CREEK        8440     7.0    12.2    57     11.4    15.1    75
 TOWER                   10500    28.7    42.6    67     30.2    36.1    84
 WEBBER SPRINGS           9250    16.7    25.1    67     20.8    25.0    83
 WILLOW CREEK PASS        9540      -M    11.0      *     9.1    11.9    76
 ZIRKEL                   9340    21.9    25.0    88     24.2    24.4    99
                                                -----                  -----
                Basin wide percent of average     71                     83


SWEETWATER

 DEER PARK                9700    11.0    16.0    69     16.4    20.5    80
 LARSEN CREEK             9000    10.8      -M      *    12.8      -M      *
 SOUTH PASS               9040    13.0    16.0    81     13.2    17.1    77
                                                -----                  -----
                Basin wide percent of average     75                     79


LOWER N. PLATTE

 CASPER MTN.              7900    17.6    13.0   135     17.7    12.9   137
 LAPRELE CREEK            8375     8.8    10.4    85     11.5    11.6    99
 RENO HILL                8400    15.0    12.6   119     16.8    13.4   125
 WINDY PEAK               7900     6.6     7.5    88      8.6     9.7    89
                                                -----                  -----
                Basin wide percent of average    110                    115


LARAMIE RIVER

 BROOKLYN LAKE           10240    16.4    21.8    75     18.5    20.3    91
 CINNABAR PARK            9574    14.9    17.4    86     19.3    18.9   102
 CROW CREEK               8330     6.8     8.3    82      9.9     9.1   109
 DEADMAN HILL            10220    16.1    14.9   108     14.9    15.5    96
 RAWAH                    9020     7.1    13.9    51     10.7    15.2    70
 ROACH                    9700    12.7    15.8    80     15.7    17.3    91
                                                -----                  -----
                Basin wide percent of average     80                     92


S. PLATTE

 BLACK MOUNTAIN           8920     9.9      -M      *    12.2      -M      *
 CROW CREEK               8330     6.8     8.3    82      9.9     9.1   109
 DEADMAN HILL            10220    16.1    14.9   108     14.9    15.5    96
                                                -----                  -----
                Basin wide percent of average     99                    101


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     9.3    11.5    81     11.7    14.6    80
 DIVIDE PEAK              8880    13.8    18.4    75     18.5    19.4    95
 ELK RIVER                8700    13.0    18.3    71     15.2    18.3    83
 LITTLE SNAKE RIVER       8915    18.1      -M      *    23.9      -M      *
 OLD BATTLE              10000    22.1    30.2    73     26.6    32.5    82
 SAGE CREEK BASIN         7850    10.5    10.7    98     10.2    11.3    90
 SANDSTONE RS             8150     9.7    14.7    66     11.9    17.7    67
 WHISKEY PARK             8950    19.8    28.4    70     23.7    26.8    88
                                                -----                  -----
                Basin wide percent of average     74                     84


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    12.6    13.7    92     12.7    12.7   100
 BLIND BULL SUM           8650    21.8    26.6    82     16.7    21.2    79
 EAST RIM DIVIDE          7930    11.0    12.5    88     11.2    11.5    97
 ELKHART PARK G.S.        9400    13.0    12.7   102     13.9    12.5   111
 GROS VENTRE SUMMIT       8750     9.7    13.4    72     10.1    12.2    83
 GUNSIGHT PASS            9820    12.5      -M      *    13.3      -M      *
 KENDALL R.S.             7740    14.1    14.3    99     14.8    14.0   106
 LOOMIS PARK              8240    13.6    16.7    81     15.9    16.6    96
 NEW FORK LAKE            8340    11.2    10.8   104     10.3    10.7    96
 POCKET CREEK             9360     9.5      -M      *    11.6      -M      *
 SNIDER BASIN             8060    12.4    14.0    89     12.5    15.3    82
 SPRING CREEK DIVIDE      9000    22.0    25.2    87     21.7    25.1    86
 TRIPLE PEAK              8500    21.9    23.8    92     24.3    23.5   103
                                                -----                  -----
                Basin wide percent of average     89                     94


LOWER GREEN RIVER

 BLACKS FORK JCT          8870     4.7      -M      *    10.2      -M      *
 BUCK PASTURE             9700      .1      -M      *     3.5      -M      *
 EF BLACKS FORK GS        9308     9.0      -M      *     9.0      -M      *
 HAMS FORK                7840     9.5    12.4    77      9.4    11.6    81
 HEWINTA                  9519     9.1    10.9    83     11.9    13.4    89
 HICKERSON PARK           9145     8.8     6.8   129     11.5     7.2   160
 HOLE-IN-ROCK             9150     7.9     6.6   120     11.7     6.8   172
 INDIAN CREEK             9425    19.6    26.1    75     16.9    23.9    71
 KELLEY R.S.              8180    12.5    16.1    78     14.5    19.2    76
 SPIRIT LK               10223    11.5      -M      *    17.2      -M      *
 STEEL CREEK PARK        10200      -M    14.7      *    13.9    14.8    94
                                                -----                  -----
                Basin wide percent of average     85                     93


UPPER BEAR RIVER

 BEAR RIVER RS            8500     5.7      -M      *     9.7      -M      *
 BUG LAKE                 7950    14.8    19.8    75     15.1    18.2    83
 BURTS MILLER RANCH       8000     4.9      -M      *     9.7      -M      *
 CHALK CREEK #1           8993    15.1    23.3    65     17.9    23.5    76
 HAYDEN FORK              9212    10.5    15.4    68     17.0    19.6    87
 KELLEY R.S.              8180    12.5    16.1    78     14.5    19.2    76
 LILY LAKE                9156     9.2    12.3    75     11.6    16.2    72
 MONTE CRISTO             8960    18.1    28.5    64     18.0    24.0    75
 SALT RIVER SUMMIT        7760    10.3    13.8    75     10.9    17.7    62
                                                -----                  -----
                Basin wide percent of average     70                     76

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


 -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.