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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 17 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    8.6      .0       *   30.3    24.2    125
 BLACK BEAR               8170   45.9    35.3    130    48.4    44.3    109
 BLIND BULL SUM           8650   37.1    21.5    173    26.0    23.0    113
 COTTONWOOD CREEK         7670   21.8     8.9    245    39.6    29.6    134
 EAST RIM DIVIDE          7930     .1     2.6      4    17.8    14.0    127
 GRAND TARGHEE            9260   51.9    44.0    118    44.8    36.7    122
 GRANITE CREEK            6770   11.9      .0       *   27.6    22.7    122
 GRASSY LAKE              7265   30.9    20.4    151    46.5    41.5    112
 GROS VENTRE SUMMIT       8750   11.7     7.6    154    17.0    15.9    107
 GUNSIGHT PASS            9820   19.0    11.7    162    22.2    17.5    127
 LEWIS LAKE DIVIDE        7850   38.9    24.5    159    46.9    40.6    116
 PHILLIPS BENCH           8200   32.5    21.0    155    39.6    32.6    121
 SALT RIVER SUMMIT        7760    5.3      .6    883*   22.3    19.7    113
 SNAKE RIVER STATION      6920    3.6      .0       *   30.4    26.2    116
 SPRING CREEK DIVIDE      9000   36.1    22.0    164    36.4    27.8    131
 THUMB DIVIDE             7980   12.3     3.6    342    23.6    22.5    105
 TOGWOTEE PASS            9580   33.2    23.8    139    37.5    29.4    128
 TWO OCEAN PLATEAU        9240   41.2    29.0    142    39.8    32.4    123
 WILLOW CREEK             8380   32.0    18.8    170    47.3    40.4    117
 YOUNTS PEAK              8350     -M    12.9       *     -M    19.2       *
                                                -----                  -----
                Basin Index (%)                  161                    119


MADISON-GALLATIN

 BLACK BEAR               8170   45.9    35.3    130    48.4    44.3    109
 CANYON                   7870    9.9     4.2    236    20.2    19.6    103
 MADISON PLATEAU          7750   24.0    15.9    151    30.7    31.1     99
 WEST YELLOWSTONE         6700     .1      .0       *   19.5    17.4    112
 WHISKEY CREEK            6800   13.0     7.6    171    26.0    24.0    108
                                                -----                  -----
                Basin Index (%)                  147                    106


YELLOWSTONE

 BEARTOOTH LAKE           9360   33.7    22.3    151    34.8    23.9    146
 BURNT MTN                5880     .2      .0       *   25.9    18.9    137
 CANYON                   7870    9.9     4.2    236    20.2    19.6    103
 COLE CREEK               7850   26.0    16.8    155    22.7    19.2    118
 EVENING STAR             9200   38.8    24.9    156    46.6    32.9    142
 FISHER CREEK             9100   47.4    33.6    141    46.9    37.9    124
 NORTHEAST ENTRANCE       7350    2.0      .0       *   19.4    15.3    127
 PARKER PEAK              9400   38.0    20.9    182    35.4    22.1    160
 SYLVAN LAKE              8420   22.6    16.3    139    35.3    27.2    130
 THUMB DIVIDE             7980   12.3     3.6    342    23.6    22.5    105
 TWO OCEAN PLATEAU        9240   41.2    29.0    142    39.8    32.4    123
 WHITE MILL               8700   36.0    23.7    152    35.0    28.6    122
 WOLVERINE                7650    2.1      .0       *   21.2    15.3    139
                                                -----                  -----
                Basin Index (%)                  159                    129


WIND RIVER

 BURROUGHS CREEK          8750     -M    10.8       *     -M    19.6       *
 CASTLE CREEK             8400     .0      -M       *   14.8      -M       *
 COLD SPRINGS             9630     .8      .0       *   15.4    14.2    108
 DEER PARK                9700     -M    12.4       *   24.1    25.7     94
 HOBBS PARK              10100   15.9    14.4    110    18.3    19.0     96
 KIRWIN                   9550   19.0     9.7    196    22.1    15.6    142
 LITTLE WARM              9370   10.1     4.9    206    20.2    17.1    118
 OWL CREEK                8975     .2      .0       *    9.4     9.4    100
 SOUTH PASS               9040   12.8     9.2    139    19.2    22.2     86
 ST. LAWRENCE ALT         8620     .2      .0       *   12.8    13.2     97
 TOGWOTEE PASS            9580   33.2    23.8    139    37.5    29.4    128
 TOWNSEND CREEK           8700    1.9      .3    633*   14.1    16.8     84
                                                -----                  -----
                Basin Index (%)                  151*                   106


BIGHORN BASIN

 BALD MTN.                9380   31.7    20.3    156    25.4    21.8    117
 BEAR TRAP MEADOW         8200     .7      .0       *   14.0    12.4    113
 BONE SPRINGS DIV         9350   26.5    15.3    173    22.2    20.5    108
 GRAVE SPRINGS            8550   10.0     5.2    192    15.3    14.8    103
 KIRWIN                   9550   19.0     9.7    196    22.1    15.6    142
 MARQUETTE                8760   15.0      -M       *   17.8      -M       *
 MIDDLE POWDER            7760   14.9     7.7    194    17.5    16.0    109
 OWL CREEK                8975     .2      .0       *    9.4     9.4    100
 POWDER RIVER PASS        9480   13.2     7.4    178    20.2    17.0    119
 SHELL CREEK              9580   21.9    16.1    136    21.3    18.3    116
 TIMBER CREEK             7950     .3      .0       *   13.4    11.9    113
                                                -----                  -----
                Basin Index (%)                  169                    115


SHOSHONE RIVER

 BLACKWATER               9780   35.9    24.9    144    34.7    25.6    136
 EVENING STAR             9200   38.8    24.9    156    46.6    32.9    142
 MARQUETTE                8760   15.0      -M       *   17.8      -M       *
 SYLVAN ROAD              7120     .0      .0       *   25.7    20.0    128
 YOUNTS PEAK              8350     -M    12.9       *     -M    19.2       *
                                                -----                  -----
                Basin Index (%)                  150*                   136


POWDER RIVER

 BEAR TRAP MEADOW         8200     .7      .0       *   14.0    12.4    113
 CLOUD PEAK RESERVOIR     9860   25.2    15.8    159    26.0    19.3    135
 GRAVE SPRINGS            8550   10.0     5.2    192    15.3    14.8    103
 HANSEN SAWMILL           8360    4.2      .0       *   16.1    12.6    128
 MIDDLE POWDER            7760   14.9     7.7    194    17.5    16.0    109
 POWDER RIVER PASS        9480   13.2     7.4    178    20.2    17.0    119
 SOLDIER PARK             8720    9.5      -M       *   16.5      -M       *
                                                -----                  -----
                Basin Index (%)                  189                    118


TONGUE RIVER

 BIG GOOSE                7990   11.8     7.5    157    20.0    16.8    119
 BONE SPRINGS DIV         9350   26.5    15.3    173    22.2    20.5    108
 BURGESS JUNCTION         7880   17.0     9.8    173    21.2    16.7    127
 DOME LAKE                8880   17.3     8.5    204    20.9    18.8    111
 LITTLE GOOSE             8870   14.7      -M       *   23.2      -M       *
 SUCKER CREEK             8880   18.5    10.3    180    25.5    19.9    128
 TIE CREEK                6870    4.0      .0       *   19.9    16.9    118
                                                -----                  -----
                Basin Index (%)                  185                    118


BELLE FOURCHE

 COLE CANYON              5910     .0      .0       *   17.4    14.6    119
                                                -----                  -----
                Basin Index (%)                     *                   119


CHEYENNE RIVER BASIN

 BLIND PARK               6890     .0      .0       *   20.8    16.4    127
 NORTH RAPID CREEK        6130     .0      .0       *   20.0    14.3    140
                                                -----                  -----
                Basin Index (%)                     *                   133


UPPER N. PLATTE

 ARAPAHO RIDGE           10960   31.2    20.5    152    34.6    28.4    122
 BLACKHALL MTN            9820   39.7      -M       *     -M      -M       *
 COLUMBINE                9160   26.4     6.4    412      -M    30.4       *
 DIVIDE PEAK              8880   12.0     8.6    140    29.7    26.2    113
 JOE WRIGHT              10120   32.1    22.3    144    41.0    32.5    126
 LAPRELE CREEK            8375    2.2      .0       *   16.8    16.6    101
 MED BOW                 10500     -M      -M       *   48.4      -M       *
 NORTH FRENCH CREEK      10130   40.2    31.3    128    42.2    33.4    126
 NEVER SUMMER            10280   29.6    21.7    136    25.8      -M       *
 OLD BATTLE              10000   40.2    33.9    119    43.5    41.8    104
 RAWAH                    9020    7.4      .9    822*   23.1    18.8    123
 SAGE CREEK BASIN         7850    1.1      .0       *   14.6    17.2     85
 SAND LAKE               10050   40.4    29.3    138    41.7    31.5    132
 SOUTH BRUSH CREEK        8440     .4      .5     80*   19.6    19.8     99
 TOWER                   10500   56.1    49.0    114    60.1    47.5    127
 WEBBER SPRINGS           9250   20.5    14.8    139    35.9    31.8    113
 WILLOW CREEK PASS        9540   15.7    10.6    148    19.2    17.1    112
 ZIRKEL                   9340   34.2    14.3    239      -M    33.3       *
                                                -----                  -----
                Basin Index (%)                  148                    116


SWEETWATER

 DEER PARK                9700     -M    12.4       *   24.1    25.7     94
 LARSEN CREEK             9000     .8     4.5     18    17.9      -M       *
 SOUTH PASS               9040   12.8     9.2    139    19.2    22.2     86
                                                -----                  -----
                Basin Index (%)                   99                     90


LOWER N. PLATTE

 CASPER MTN.              7900   14.9     7.4    201    21.0    20.1    104
 LAPRELE CREEK            8375    2.2      .0       *   16.8    16.6    101
 RENO HILL                8400   19.0     6.4    297    28.0    21.0    133
 WINDY PEAK               7900    2.0      .0       *   16.9    14.4    117
                                                -----                  -----
                Basin Index (%)                  276                    115


LARAMIE RIVER

 BROOKLYN LAKE           10240   30.5    18.7    163    37.8    26.9    141
 CINNABAR PARK            9574   21.8    14.4    151    36.7    29.4    125
 CROW CREEK               8330     .3      .0       *   17.7    15.0    118
 DEADMAN HILL            10220   28.6    17.9    160    30.4    22.7    134
 RAWAH                    9020    7.4      .9    822*   23.1    18.8    123
 ROACH                    9700   19.6    13.1    150    30.9    24.3    127
                                                -----                  -----
                Basin Index (%)                  166                    129


S. PLATTE

 BLACK MOUNTAIN           8920    6.4      -M       *   19.0      -M       *
 CROW CREEK               8330     .3      .0       *   17.7    15.0    118
 DEADMAN HILL            10220   28.6    17.9    160    30.4    22.7    134
                                                -----                  -----
                Basin Index (%)                  161*                   128


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     .0      .0       *   20.1    18.5    109
 DIVIDE PEAK              8880   12.0     8.6    140    29.7    26.2    113
 ELK RIVER                8700    9.3     1.2    775*   26.9    24.4    110
 LITTLE SNAKE RIVER       8915     -M    16.5       *     -M    35.0       *
 OLD BATTLE              10000   40.2    33.9    119    43.5    41.8    104
 SAGE CREEK BASIN         7850    1.1      .0       *   14.6    17.2     85
 SANDSTONE RS             8150     -M      .0       *   20.6    22.3     92
 WHISKEY PARK             8950   32.4    23.8    136    45.8    33.7    136
                                                -----                  -----
                Basin Index (%)                  141*                   109


UPPER GREEN RIVER

 BIG SANDY OPENING        9080   11.1     6.1    182    17.3    16.6    104
 BLIND BULL SUM           8650   37.1    21.5    173    26.0    23.0    113
 EAST RIM DIVIDE          7930     .1     2.6      4    17.8    14.0    127
 ELKHART PARK G.S.        9400   16.2     7.5    216    20.3    16.5    123
 GROS VENTRE SUMMIT       8750   11.7     7.6    154    17.0    15.9    107
 GUNSIGHT PASS            9820   19.0    11.7    162    22.2    17.5    127
 KENDALL R.S.             7740    8.9      .0       *   24.9    16.6    150
 LOOMIS PARK              8240   14.3     4.8    298    27.5    20.4    135
 NEW FORK LAKE            8340    5.1      .4   1275*   14.9    13.4    111
 POCKET CREEK             9360   11.6      -M       *   15.2      -M       *
 SNIDER BASIN             8060     .0     2.9      0    21.7    16.6    131
 SPRING CREEK DIVIDE      9000   36.1    22.0    164    36.4    27.8    131
 TRIPLE PEAK              8500   25.6    11.1    231    41.2    30.0    137
                                                -----                  -----
                Basin Index (%)                  189                    126


LOWER GREEN RIVER

 BLACKS FORK JCT          8870     .0      -M       *   16.8      -M       *
 BUCK PASTURE             9700    6.8      -M       *   21.2      -M       *
 EF BLACKS FORK GS        9360     .0      -M       *   13.8      -M       *
 HAMS FORK                7840     .0      .0       *   16.8    14.2    118
 HEWINTA                  9519     .0      .0       *   18.4    17.6    105
 HICKERSON PARK           9145     .1      .0       *   12.1    13.3     91
 HOLE-IN-ROCK             9150     .0      .0       *   13.4    12.8    105
 INDIAN CREEK             9425   28.8    20.5    140    30.8    26.8    115
 KELLEY R.S.              8180    9.9     5.1    194    23.6    21.6    109
 SPIRIT LK               10235    5.0      -M       *   18.8      -M       *
 STEEL CREEK PARK        10200   20.7    15.8    131    21.1    20.8    101
                                                -----                  -----
                Basin Index (%)                  144*                   107


UPPER BEAR RIVER

 BEAR RIVER RS            8777     .0      -M       *   15.3      -M       *
 BUG LAKE                 7950   13.0     8.4    155    24.5    23.2    106
 BURTS MILLER RANCH       8000     .1      -M       *    8.8      -M       *
 CHALK CREEK #1           8993   15.8    18.0     88    27.5    30.6     90
 HAYDEN FORK              9212     .7     1.1     64*   25.2    25.6     98
 KELLEY R.S.              8180    9.9     5.1    194    23.6    21.6    109
 LILY LAKE                9156    3.9      .0       *   18.7    21.2     88
 MONTE CRISTO             8960   18.6    17.5    106    30.0    31.4     96
 SALT RIVER SUMMIT        7760    5.3      .6    883*   22.3    19.7    113
                                                -----                  -----
                Basin Index (%)                  133*                    99

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


 -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.