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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: MAY 10 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030   13.1     4.4    298    29.8    23.6    126
 BLACK BEAR               8170   45.5    36.8    124    47.8    43.1    111
 BLIND BULL SUM           8650   38.1    22.4    170    25.6    22.2    115
 COTTONWOOD CREEK         7670   23.9    12.8    187    38.3    28.8    133
 EAST RIM DIVIDE          7930    4.6     5.9     78    17.3    13.5    128
 GRAND TARGHEE            9260   53.3    46.4    115    44.6    36.1    124
 GRANITE CREEK            6770   14.9     5.5    271    27.4    22.1    124
 GRASSY LAKE              7265   34.0    25.9    131    45.8    40.6    113
 GROS VENTRE SUMMIT       8750   13.4     9.6    140    16.8    15.4    109
 GUNSIGHT PASS            9820   19.8    12.1    164    21.9    16.9    130
 LEWIS LAKE DIVIDE        7850   40.8    29.3    139    45.8    39.7    115
 PHILLIPS BENCH           8200   35.5    23.1    154    39.4    31.8    124
 SALT RIVER SUMMIT        7760    8.1     4.5    180    21.7    19.1    114
 SNAKE RIVER STATION      6920    8.2     2.5    328    29.7    25.6    116
 SPRING CREEK DIVIDE      9000   35.8    23.7    151    35.6    27.1    131
 THUMB DIVIDE             7980   15.7     8.4    187    23.2    21.8    106
 TOGWOTEE PASS            9580   34.4    25.4    135    37.3    28.5    131
 TWO OCEAN PLATEAU        9240   40.1    29.6    135    39.0    31.2    125
 WILLOW CREEK             8380   33.8    21.1    160    46.1    39.2    118
 YOUNTS PEAK              8350     -M    15.4       *     -M    18.5       *
                                                -----                  -----
                Basin Index (%)                  147                    120


MADISON-GALLATIN

 BLACK BEAR               8170   45.5    36.8    124    47.8    43.1    111
 CANYON                   7870   12.6     7.4    170    19.9    18.8    106
 MADISON PLATEAU          7750   26.0    20.0    130    30.5    30.0    102
 WEST YELLOWSTONE         6700     .1      .0       *   19.4    16.6    117
 WHISKEY CREEK            6800   15.4    10.7    144    25.8    23.1    112
                                                -----                  -----
                Basin Index (%)                  133                    109


YELLOWSTONE

 BEARTOOTH LAKE           9360   34.1    23.0    148    34.3    23.1    148
 BURNT MTN                5880     .4      .0       *   24.6    17.4    141
 CANYON                   7870   12.6     7.4    170    19.9    18.8    106
 COLE CREEK               7850   25.1    17.2    146    21.1    18.0    117
 EVENING STAR             9200   41.6    25.4    164    46.0    31.8    145
 FISHER CREEK             9100   48.7    34.3    142    46.1    36.6    126
 NORTHEAST ENTRANCE       7350    6.1      .9    678*   19.1    14.6    131
 PARKER PEAK              9400   38.2    22.0    174    34.9    21.2    165
 SYLVAN LAKE              8420   23.6    18.1    130    34.7    26.3    132
 THUMB DIVIDE             7980   15.7     8.4    187    23.2    21.8    106
 TWO OCEAN PLATEAU        9240   40.1    29.6    135    39.0    31.2    125
 WHITE MILL               8700   36.7    24.7    149    34.5    27.5    125
 WOLVERINE                7650    8.3      .0       *   20.9    14.6    143
                                                -----                  -----
                Basin Index (%)                  157                    131


WIND RIVER

 BURROUGHS CREEK          8750     -M    11.6       *     -M    18.8       *
 CASTLE CREEK             8400    1.0      -M       *   14.5      -M       *
 COLD SPRINGS             9630    2.3     1.5    153    14.8    13.4    110
 DEER PARK                9700     -M    14.4       *   22.4    24.6     91
 HOBBS PARK              10100   14.6    15.9     92    16.5    17.8     93
 KIRWIN                   9550   19.5    10.9    179    21.1    14.8    143
 LITTLE WARM              9370   11.1     6.6    168    19.7    16.2    122
 OWL CREEK                8975     .1      .5     20*    9.1     8.6    106
 SOUTH PASS               9040   11.9    11.8    101    17.1    21.3     80
 ST. LAWRENCE ALT         8620     .2     1.0     20    11.4    12.4     92
 TOGWOTEE PASS            9580   34.4    25.4    135    37.3    28.5    131
 TOWNSEND CREEK           8700    1.1     3.9     28    11.8    15.8     75
                                                -----                  -----
                Basin Index (%)                  123                    104


BIGHORN BASIN

 BALD MTN.                9380   30.7    20.6    149    24.5    21.1    116
 BEAR TRAP MEADOW         8200    3.1      .0       *   13.1    11.6    113
 BONE SPRINGS DIV         9350   25.4    16.6    153    21.3    19.7    108
 GRAVE SPRINGS            8550   10.3     7.7    134    14.6    14.1    104
 KIRWIN                   9550   19.5    10.9    179    21.1    14.8    143
 MARQUETTE                8760   14.8      -M       *   16.9      -M       *
 MIDDLE POWDER            7760   15.7    10.8    145    16.8    15.4    109
 OWL CREEK                8975     .1      .5     20*    9.1     8.6    106
 POWDER RIVER PASS        9480   12.8     9.0    142    19.3    16.3    118
 SHELL CREEK              9580   20.9    16.8    124    20.5    17.6    116
 TIMBER CREEK             7950    1.4     1.5     93    12.9    11.0    117
                                                -----                  -----
                Basin Index (%)                  148                    115


SHOSHONE RIVER

 BLACKWATER               9780   36.0    24.8    145    34.2    24.6    139
 EVENING STAR             9200   41.6    25.4    164    46.0    31.8    145
 MARQUETTE                8760   14.8      -M       *   16.9      -M       *
 SYLVAN ROAD              7120     .0     1.5      0    25.6    19.3    133
 YOUNTS PEAK              8350     -M    15.4       *     -M    18.5       *
                                                -----                  -----
                Basin Index (%)                  150                    140


POWDER RIVER

 BEAR TRAP MEADOW         8200    3.1      .0       *   13.1    11.6    113
 CLOUD PEAK RESERVOIR     9860   23.7    16.8    141    24.3    18.2    134
 GRAVE SPRINGS            8550   10.3     7.7    134    14.6    14.1    104
 HANSEN SAWMILL           8360    4.5     1.2    375    15.5    11.9    130
 MIDDLE POWDER            7760   15.7    10.8    145    16.8    15.4    109
 POWDER RIVER PASS        9480   12.8     9.0    142    19.3    16.3    118
 SOLDIER PARK             8720    9.4      -M       *   15.7      -M       *
                                                -----                  -----
                Basin Index (%)                  154                    118


TONGUE RIVER

 BIG GOOSE                7990   11.1    10.4    107    18.7    15.7    119
 BONE SPRINGS DIV         9350   25.4    16.6    153    21.3    19.7    108
 BURGESS JUNCTION         7880   17.2    11.4    151    20.1    16.1    125
 DOME LAKE                8880   16.4    11.2    146    19.5    17.9    109
 LITTLE GOOSE             8870   13.7      -M       *   21.7      -M       *
 SUCKER CREEK             8880   17.8    12.6    141    24.3    19.0    128
 TIE CREEK                6870    4.9     1.5    327    19.1    15.9    120
                                                -----                  -----
                Basin Index (%)                  146                    118


BELLE FOURCHE

 COLE CANYON              5910     .0      .0       *   17.3    13.5    128
                                                -----                  -----
                Basin Index (%)                     *                   128


CHEYENNE RIVER BASIN

 BLIND PARK               6890     .0      .0       *   20.3    15.5    131
 NORTH RAPID CREEK        6130     .0      .0       *   19.4    13.4    145
                                                -----                  -----
                Basin Index (%)                     *                   137


UPPER N. PLATTE

 ARAPAHO RIDGE           10960   27.5    22.4    123    31.3    27.5    114
 BLACKHALL MTN            9820   35.8      -M       *     -M      -M       *
 COLUMBINE                9160   25.3    12.7    199      -M    29.6       *
 DIVIDE PEAK              8880    9.2    14.3     64    25.9    25.5    102
 JOE WRIGHT              10120   28.1    23.2    121    38.0    31.4    121
 LAPRELE CREEK            8375    1.1     2.8     39    14.6    16.1     91
 MED BOW                 10500     -M      -M       *   45.9      -M       *
 NORTH FRENCH CREEK      10130   38.3    32.7    117    40.2    32.4    124
 NEVER SUMMER            10280   27.5    22.2    124    24.1      -M       *
 OLD BATTLE              10000   35.5    36.8     96    40.7    40.8    100
 RAWAH                    9020    6.3     2.7    233    21.2    18.2    116
 SAGE CREEK BASIN         7850     .1      .0       *   14.1    16.9     83
 SAND LAKE               10050   36.2    31.8    114    37.5    30.5    123
 SOUTH BRUSH CREEK        8440    1.9     5.2     37    18.5    19.1     97
 TOWER                   10500   53.5    51.4    104    57.1    46.4    123
 WEBBER SPRINGS           9250   16.8    19.4     87    31.7    31.1    102
 WILLOW CREEK PASS        9540   14.4    13.4    107    17.5    16.5    106
 ZIRKEL                   9340   30.9    19.7    157      -M    32.4       *
                                                -----                  -----
                Basin Index (%)                  113                    110


SWEETWATER

 DEER PARK                9700     -M    14.4       *   22.4    24.6     91
 LARSEN CREEK             9000    3.4     6.5     52    17.6      -M       *
 SOUTH PASS               9040   11.9    11.8    101    17.1    21.3     80
                                                -----                  -----
                Basin Index (%)                   84                     86


LOWER N. PLATTE

 CASPER MTN.              7900   12.3    11.4    108    19.1    19.4     98
 LAPRELE CREEK            8375    1.1     2.8     39    14.6    16.1     91
 RENO HILL                8400   16.6    10.5    158    25.2    20.1    125
 WINDY PEAK               7900    1.1      .8    138    14.9    13.9    107
                                                -----                  -----
                Basin Index (%)                  122                    106


LARAMIE RIVER

 BROOKLYN LAKE           10240   28.2    21.4    132    34.1    26.0    131
 CINNABAR PARK            9574   21.5    17.4    124    32.8    28.2    116
 CROW CREEK               8330     .0      .0       *   15.2    14.3    106
 DEADMAN HILL            10220   26.9    18.5    145    28.2    21.7    130
 RAWAH                    9020    6.3     2.7    233    21.2    18.2    116
 ROACH                    9700   16.7    15.9    105    27.5    23.3    118
                                                -----                  -----
                Basin Index (%)                  131                    121


S. PLATTE

 BLACK MOUNTAIN           8920    6.0      -M       *     -M      -M       *
 CROW CREEK               8330     .0      .0       *   15.2    14.3    106
 DEADMAN HILL            10220   26.9    18.5    145    28.2    21.7    130
                                                -----                  -----
                Basin Index (%)                  145*                   121


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     .0      .0       *   19.4    18.0    108
 DIVIDE PEAK              8880    9.2    14.3     64    25.9    25.5    102
 ELK RIVER                8700    9.4     7.8    121    25.3    23.7    107
 LITTLE SNAKE RIVER       8915     -M    20.4       *     -M    34.4       *
 OLD BATTLE              10000   35.5    36.8     96    40.7    40.8    100
 SAGE CREEK BASIN         7850     .1      .0       *   14.1    16.9     83
 SANDSTONE RS             8150     .0     1.9      0    19.6    21.8     90
 WHISKEY PARK             8950   39.4    26.8    147    44.0    32.9    134
                                                -----                  -----
                Basin Index (%)                  107                    105


UPPER GREEN RIVER

 BIG SANDY OPENING        9080   12.4     8.6    144    16.9    16.1    105
 BLIND BULL SUM           8650   38.1    22.4    170    25.6    22.2    115
 EAST RIM DIVIDE          7930    4.6     5.9     78    17.3    13.5    128
 ELKHART PARK G.S.        9400   16.9     9.6    176    19.7    15.8    125
 GROS VENTRE SUMMIT       8750   13.4     9.6    140    16.8    15.4    109
 GUNSIGHT PASS            9820   19.8    12.1    164    21.9    16.9    130
 KENDALL R.S.             7740   12.4      .0       *   24.8    16.2    153
 LOOMIS PARK              8240   17.0     7.3    233    27.2    19.7    138
 NEW FORK LAKE            8340    8.3     2.6    319    14.5    12.8    113
 POCKET CREEK             9360   12.4      -M       *   14.8      -M       *
 SNIDER BASIN             8060    5.0     7.4     68    20.8    16.2    128
 SPRING CREEK DIVIDE      9000   35.8    23.7    151    35.6    27.1    131
 TRIPLE PEAK              8500   27.7    14.9    186    40.3    29.1    138
                                                -----                  -----
                Basin Index (%)                  170                    127


LOWER GREEN RIVER

 BLACKS FORK JCT          8870     .0      -M       *   15.8      -M       *
 BUCK PASTURE             9700    8.4      -M       *   20.4      -M       *
 EF BLACKS FORK GS        9360     .8      -M       *   11.9      -M       *
 HAMS FORK                7840    2.5      .1   2500*   16.0    13.8    116
 HEWINTA                  9519     .0     2.0      0    16.9    17.1     99
 HICKERSON PARK           9145     .1      .1    100*    9.7    12.8     76
 HOLE-IN-ROCK             9150     .0      .0       *   11.2    12.3     91
 INDIAN CREEK             9425   29.9    21.0    142    29.7    26.0    114
 KELLEY R.S.              8180   11.9     8.4    142    22.9    21.0    109
 SPIRIT LK               10235    3.4      -M       *   15.8      -M       *
 STEEL CREEK PARK        10200   19.6    17.7    111    19.2    20.1     96
                                                -----                  -----
                Basin Index (%)                  130*                   102


UPPER BEAR RIVER

 BEAR RIVER RS            8777     .0      -M       *   14.9      -M       *
 BUG LAKE                 7950   16.1    12.2    132    24.3    22.6    108
 BURTS MILLER RANCH       8000     .2      -M       *    8.4      -M       *
 CHALK CREEK #1           8993   17.2    21.5     80    27.1    29.7     91
 HAYDEN FORK              9212    4.1     5.9     69    24.9    24.8    100
 KELLEY R.S.              8180   11.9     8.4    142    22.9    21.0    109
 LILY LAKE                9156    6.2     5.4    115    18.3    20.5     89
 MONTE CRISTO             8960   20.5    21.5     95    29.5    30.6     96
 SALT RIVER SUMMIT        7760    8.1     4.5    180    21.7    19.1    114
                                                -----                  -----
                Basin Index (%)                  106                    100

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


 -M   = Missing data
  *   = Data may not provide a valid measure of conditions.
Units = inches for the Current and Normal Snow Water Equivalent and

Total Precipitation values

If the Basin Index (%) 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 Median represents the snow water
equivalent found at selected SNOTEL sites in or near the basin compared to
the Median 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.

Medians and averages are calculated for the period 1981-2010.

Provisional data, subject to revision.

* Site -- Either: (a) the current value is missing; (b) the median or
average for the day is not available or is zero; or (c) for snow water
equivalent, the median for the day is less than 10% of the maximum
median value for  the year.


* Basin - More than half of the sites within the basin are flagged with *,
preventing the calculation of a meaningful basin index.

The basin index is calculated as the sum of the valid current values
divided by the sum of the corresponding medians (for snow water equivalent)
or averages (for precipitation) and the resulting fraction multiplied by 100.