Home
Interactive Maps
WY Weather
WY Climate
Drought
Data/Products
CoCoRaHS
Library
Articles & Publications
Education & Outreach
Site Map
Cooperative Projects
Water Links
Contact Us

Subscribe to our mailing list

Water Resources Data System
Dept 3943
1000 E. University Ave.
Laramie, WY 82071

wrds@uwyo.edu
Ph (307) 766-6651
Fax (307) 766-3785


Share this page

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: APRIL 21 , 2009
-----------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT   TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Average  Avg  Current  Average  Avg
-----------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    13.3    15.7    85     21.3    23.4    91
 COTTONWOOD CREEK         7670    27.7    22.9   121     34.7    30.4   114
 GRAND TARGHEE            9260    49.4      -M      *    38.2      -M      *
 GRANITE CREEK            6770    15.6    15.9    98     23.2    21.5   108
 GRASSY LAKE              7265    33.5    36.5    92     38.0    39.3    97
 GROS VENTRE SUMMIT       8750      -M    14.4      *    17.4    14.4   121
 GUNSIGHT PASS            9820    16.5      -M      *    17.9      -M      *
 LEWIS LAKE DIVIDE        7850    34.4    36.5    94     36.5    40.1    91
 PHILLIPS BENCH           8200    30.2    30.7    98     33.0    31.8   104
 SALT RIVER SUMMIT        7760    15.4    13.6   113     18.6    20.7    90
 SNAKE RIVER STATION      6920    16.5    16.2   102     24.7    24.5   101
 SPRING CREEK DIVIDE      9000    31.4    28.8   109     29.9    29.0   103
 THUMB DIVIDE             7980    20.8    17.8   117     23.8    20.9   114
 TOGWOTEE PASS            9580    30.3    27.2   111     32.6    27.5   119
 TWO OCEAN PLATEAU        9240    41.8    31.2   134     32.0    30.6   105
 WILLOW CREEK             8380    36.1    31.9   113     43.3    35.7   121
                                                -----                  -----
                Basin wide percent of average    107                    105


UPPER YELLOWSTONE-MADISON

 BEARTOOTH LAKE           9360    24.9    25.6    97     23.0    22.3   103
 BLACK BEAR               8170    38.2    40.9    93     38.9    44.1    88
 CANYON                   7870    14.0    13.2   106     16.5    16.9    98
 FISHER CREEK             9100    38.4    37.4   103     38.5    40.0    96
 MADISON PLATEAU          7750    24.7    25.9    95     26.9    29.4    91
 NORTHEAST ENTRANCE       7350     8.2     9.7    85     15.0    14.0   107
 PARKER PEAK              9400    29.9    23.7   126     20.4    18.3   111
 SYLVAN LAKE              8420    21.5    24.1    89     25.5    23.3   109
 THUMB DIVIDE             7980    20.8    17.8   117     23.8    20.9   114
 TWO OCEAN PLATEAU        9240    41.8    31.2   134     32.0    30.6   105
 WHISKEY CREEK            6800    18.4    17.4   106     22.6    23.1    98
 WHITE MILL               8700    26.4    26.2   101     26.3    29.7    89
 WOLVERINE                7650    11.1    10.0   111     13.6    14.3    95
                                                -----                  -----
                Basin wide percent of average    105                     99


WIND RIVER

 BURROUGHS CREEK          8750    17.5    14.9   117     18.6    18.2   102
 COLD SPRINGS             9630     9.0     5.9   153     12.7    12.6   101
 DEER PARK                9700    15.0    18.0    83     20.4    25.0    82
 HOBBS PARK              10100    16.6    17.0    98     17.2    15.3   112
 LITTLE WARM              9370    12.6    12.2   103     16.4    15.4   106
 SOUTH PASS               9040    15.6    17.9    87     17.7    21.1    84
 ST. LAWRENCE ALT         8620     7.8     6.7   116     12.1    10.8   112
 TOGWOTEE PASS            9580    30.3    27.2   111     32.6    27.5   119
 TOWNSEND CREEK           8700    11.6     9.6   121     15.2    14.0   109
                                                -----                  -----
                Basin wide percent of average    105                    102


BIGHORN BASIN

 BALD MTN.                9380    19.8    22.5    88     16.9    19.8    85
 BEAR TRAP MEADOW         8200     7.1     3.8   187     10.5     9.9   106
 BLACKWATER               9780    28.0    27.3   103     25.5    23.3   109
 BONE SPRINGS DIV         9350    17.0    17.7    96     15.8    16.9    93
 EVENING STAR             9200    31.5    32.4    97     33.9    28.3   120
 GRAVE SPRINGS            8550    10.2    11.0    93     11.5    11.9    97
 KIRWIN                   9550    14.7    12.5   118     16.4    13.0   126
 MARQUETTE                8760     8.2    10.7    77     10.6    12.1    88
 MIDDLE POWDER            7760    12.5    14.3    87     11.6    14.4    81
 OWL CREEK                8975     5.8     4.9   118      7.7     7.2   107
 POWDER RIVER PASS        9480    12.6    11.7   108     16.0    14.4   111
 SHELL CREEK              9580    16.4    16.3   101     17.0    15.4   110
 SYLVAN LAKE              8420    21.5    24.1    89     25.5    23.3   109
 SYLVAN ROAD              7120    10.9    11.1    98     21.0    19.5   108
 TIMBER CREEK             7950     5.2     5.4    96      9.4     9.1   103
 YOUNTS PEAK              8350    19.6    18.2   108     17.7    17.9    99
                                                -----                  -----
                Basin wide percent of average     99                    104


SHOSHONE RIVER

 BLACKWATER               9780    28.0    27.3   103     25.5    23.3   109
 EVENING STAR             9200    31.5    32.4    97     33.9    28.3   120
 KIRWIN                   9550    14.7    12.5   118     16.4    13.0   126
 MARQUETTE                8760     8.2    10.7    77     10.6    12.1    88
 SYLVAN LAKE              8420    21.5    24.1    89     25.5    23.3   109
 SYLVAN ROAD              7120    10.9    11.1    98     21.0    19.5   108
 YOUNTS PEAK              8350    19.6    18.2   108     17.7    17.9    99
                                                -----                  -----
                Basin wide percent of average     99                    110


POWDER-TONGUE

 BEAR TRAP MEADOW         8200     7.1     3.8   187     10.5     9.9   106
 BIG GOOSE                7990    11.5    12.5    92     14.8    11.4   130
 BONE SPRINGS DIV         9350    17.0    17.7    96     15.8    16.9    93
 BURGESS JUNCTION         7880    13.3    13.3   100     14.5    14.1   103
 CLOUD PEAK RESERVOIR     9860    19.6    15.7   125     19.2    15.4   125
 DOME LAKE                8880    13.8    13.8   100     17.5    15.4   114
 GRAVE SPRINGS            8550    10.2    11.0    93     11.5    11.9    97
 HANSEN SAWMILL           8360     6.2     5.7   109     11.5     9.8   117
 MIDDLE POWDER            7760    12.5    14.3    87     11.6    14.4    81
 POWDER RIVER PASS        9480    12.6    11.7   108     16.0    14.4   111
 SUCKER CREEK             8880    16.3    13.5   121     19.0    15.9   119
 TIE CREEK                6870     5.9     5.2   113     16.1    12.0   134
                                                -----                  -----
                Basin wide percent of average    106                    110


BELLE FOURCHE

 BLIND PARK               6890     2.6     7.0    37     15.8    12.9   122
 COLE CANYON              5910     6.6     6.8    97     13.8     8.1   170
 NORTH RAPID CREEK        6130     6.8     8.1    84     16.0    10.0   160
                                                -----                  -----
                Basin wide percent of average     73                    147


UPPER N. PLATTE RIVER

 COLUMBINE                9160    27.4    24.0   114     30.3    27.8   109
 DIVIDE PEAK              8880    27.7    20.9   133     30.4    23.0   132
 ELK RIVER                8700    23.4    18.7   125     24.6    21.8   113
 JOE WRIGHT              10120    26.5    24.3   109     32.3    28.1   115
 NORTH FRENCH CREEK      10130    38.3    33.4   115     35.6    27.7   129
 OLD BATTLE              10000    38.9    35.4   110     44.0    38.0   116
 SAGE CREEK BASIN         7850    15.5    12.1   128     16.9    13.3   127
 SOUTH BRUSH CREEK        8440    13.2    12.9   102     19.8    18.7   106
 TOWER                   10500    48.5    50.6    96     45.0    42.8   105
 WEBBER SPRINGS           9250    29.2    26.0   112     33.5    29.6   113
 WILLOW CREEK PASS        9540    14.6    14.0   104     14.6    14.6   100
                                                -----                  -----
                Basin wide percent of average    111                    115


LOWER N. PLATTE - SWEETWATER - LARAMIE

 BROOKLYN LAKE           10240    26.7    27.3    98     25.4    25.2   101
 CASPER MTN.              7900    14.6    17.3    84     15.6    17.5    89
 DEADMAN HILL            10220    21.5    18.9   114     21.7    19.4   112
 DEER PARK                9700    15.0    18.0    83     20.4    25.0    82
 LAPRELE CREEK            8375     9.3     9.5    98     15.2    14.9   102
 RENO HILL                8400    17.3    16.0   108     19.7    18.2   108
 ROACH                    9700    19.5    18.5   105     22.3    21.0   106
 SAND LAKE               10050    35.5    35.7    99     33.7    27.4   123
 SOUTH PASS               9040    15.6    17.9    87     17.7    21.1    84
 WINDY PEAK               7900    10.0     7.3   137     12.9    12.3   105
                                                -----                  -----
                Basin wide percent of average     99                    101


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    15.4     7.5   205     20.6    17.6   117
 DIVIDE PEAK              8880    27.7    20.9   133     30.4    23.0   132
 OLD BATTLE              10000    38.9    35.4   110     44.0    38.0   116
 SANDSTONE RS             8150    21.1    12.6   167     23.1    20.6   112
 WHISKEY PARK             8950    36.1    30.6   118     38.0    31.9   119
                                                -----                  -----
                Basin wide percent of average    130                    119


UPPER GREEN RIVER

 BIG SANDY OPENING        9080    13.4    15.1    89     14.5    14.9    97
 BLIND BULL SUM           8650    30.1    28.8   105     22.9    24.2    95
 EAST RIM DIVIDE          7930     8.8    14.0    63     13.7    13.2   104
 ELKHART PARK G.S.        9400    14.8    13.9   106     17.1    14.9   115
 GROS VENTRE SUMMIT       8750      -M    14.4      *    17.4    14.4   121
 GUNSIGHT PASS            9820    16.5      -M      *    17.9      -M      *
 KENDALL R.S.             7740     8.8    12.8    69     15.2    15.8    96
 LOOMIS PARK              8240    15.9    16.5    96     20.8    19.0   109
 NEW FORK LAKE            8340    11.3    10.8   105     12.5    12.6    99
 SNIDER BASIN             8060    15.3    14.6   105     17.0    17.8    96
 SPRING CREEK DIVIDE      9000    31.4    28.8   109     29.9    29.0   103
 TRIPLE PEAK              8500    25.5    25.7    99     29.7    27.3   109
                                                -----                  -----
                Basin wide percent of average     97                    104


LOWER GREEN RIVER

 HAMS FORK                7840    10.8     8.9   121     14.3    13.8   104
 HEWINTA                  9519    12.4    11.7   106     15.7    16.7    94
 HICKERSON PARK           9145     7.6     7.8    97     11.9     9.3   128
 HOLE-IN-ROCK             9150     6.8     6.7   101     11.3     8.9   127
 INDIAN CREEK             9425    27.7    29.6    94     25.6    28.2    91
 KELLEY R.S.              8180    17.1    16.6   103     20.6    22.5    92
 STEEL CREEK PARK        10200    16.8    17.7    95     19.2    19.0   101
                                                -----                  -----
                Basin wide percent of average    100                    100


UPPER BEAR RIVER

 BUG LAKE                 7950    20.4    21.1    97     20.4    21.3    96
 HAYDEN FORK              9212    17.7    15.8   112     25.1    23.7   106
 KELLEY R.S.              8180    17.1    16.6   103     20.6    22.5    92
 LILY LAKE                9156    16.0    13.8   116     19.6    19.9    98
 MONTE CRISTO             8960    30.3    30.3   100     30.2    28.5   106
 SALT RIVER SUMMIT        7760    15.4    13.6   113     18.6    20.7    90
 TRIAL LAKE               9992    27.7    26.5   105     27.1    27.9    97
                                                -----                  -----
                Basin wide percent of average    105                     98

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


 -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 1961-90.

Provisional data, subject to revision.