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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: MAY 18 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030    7.3      .0       *   30.3    24.3    125
 BLACK BEAR               8170   45.9    34.8    132    48.4    44.4    109
 BLIND BULL SUM           8650   38.2    21.0    182    26.1    23.1    113
 COTTONWOOD CREEK         7670   20.8     8.2    254    39.6    29.8    133
 EAST RIM DIVIDE          7930     .0     1.8      0    17.8    14.0    127
 GRAND TARGHEE            9260   51.3    43.4    118    44.8    36.7    122
 GRANITE CREEK            6770   10.8      .0       *   27.6    22.8    121
 GRASSY LAKE              7265   29.2    19.5    150    46.5    41.7    112
 GROS VENTRE SUMMIT       8750   10.8     7.0    154    16.9    16.0    106
 GUNSIGHT PASS            9820   18.5    11.4    162    22.1    17.6    126
 LEWIS LAKE DIVIDE        7850   37.4    23.8    157    46.9    40.8    115
 PHILLIPS BENCH           8200   31.2    20.5    152    39.6    32.7    121
 SALT RIVER SUMMIT        7760    3.9      .0       *   22.3    19.8    113
 SNAKE RIVER STATION      6920    1.8      .0       *   30.4    26.3    116
 SPRING CREEK DIVIDE      9000   35.1    21.5    163    36.5    27.9    131
 THUMB DIVIDE             7980   11.2     2.8    400    23.6    22.6    104
 TOGWOTEE PASS            9580   32.2    23.5    137    37.5    29.5    127
 TWO OCEAN PLATEAU        9240   41.1    28.7    143    39.9    32.6    122
 WILLOW CREEK             8380   30.6    18.2    168    47.3    40.6    117
 YOUNTS PEAK              8350     -M    12.5       *     -M    19.3       *
                                                -----                  -----
                Basin Index (%)                  160                    119


MADISON-GALLATIN

 BLACK BEAR               8170   45.9    34.8    132    48.4    44.4    109
 CANYON                   7870    9.1     3.5    260    20.3    19.7    103
 MADISON PLATEAU          7750   22.7    15.3    148    30.8    31.2     99
 WEST YELLOWSTONE         6700     .0      .0       *   19.6    17.4    113
 WHISKEY CREEK            6800   12.0     6.9    174    26.1    24.1    108
                                                -----                  -----
                Basin Index (%)                  148                    106


YELLOWSTONE

 BEARTOOTH LAKE           9360   33.2    22.1    150    34.8    24.0    145
 BURNT MTN                5880     .2      .0       *   26.0    18.9    138
 CANYON                   7870    9.1     3.5    260    20.3    19.7    103
 COLE CREEK               7850   25.7    16.7    154    22.7    19.3    118
 EVENING STAR             9200   36.8    24.5    150    46.5    33.1    140
 FISHER CREEK             9100   46.9    33.3    141    46.9    38.1    123
 NORTHEAST ENTRANCE       7350     .9      .0       *   19.4    15.3    127
 PARKER PEAK              9400   37.4    20.6    182    35.5    22.2    160
 SYLVAN LAKE              8420   21.3    15.9    134    35.4    27.3    130
 THUMB DIVIDE             7980   11.2     2.8    400    23.6    22.6    104
 TWO OCEAN PLATEAU        9240   41.1    28.7    143    39.9    32.6    122
 WHITE MILL               8700   35.7    23.2    154    35.0    28.7    122
 WOLVERINE                7650    1.5      .0       *   21.2    15.4    138
                                                -----                  -----
                Basin Index (%)                  157                    128


WIND RIVER

 BURROUGHS CREEK          8750     -M    10.3       *     -M    19.7       *
 CASTLE CREEK             8400     .0      -M       *   14.8      -M       *
 COLD SPRINGS             9630     .2      .0       *   15.3    14.3    107
 DEER PARK                9700     -M    11.8       *   24.2    25.9     93
 HOBBS PARK              10100   15.4    14.0    110    18.2    19.1     95
 KIRWIN                   9550   18.2     9.3    196    22.1    15.7    141
 LITTLE WARM              9370    9.1     4.2    217    20.1    17.2    117
 OWL CREEK                8975     .1      .0       *    9.5     9.5    100
 SOUTH PASS               9040   11.9     8.5    140    19.2    22.3     86
 ST. LAWRENCE ALT         8620     .1      .0       *   12.4    13.4     93
 TOGWOTEE PASS            9580   32.2    23.5    137    37.5    29.5    127
 TOWNSEND CREEK           8700    1.0      .2    500*   14.4    17.0     85
                                                -----                  -----
                Basin Index (%)                  148*                   105


BIGHORN BASIN

 BALD MTN.                9380   31.6    20.0    158    25.4    21.9    116
 BEAR TRAP MEADOW         8200     .1      .0       *   14.1    12.5    113
 BONE SPRINGS DIV         9350   25.3    15.0    169    22.3    20.7    108
 GRAVE SPRINGS            8550    9.2     4.4    209    15.4    14.9    103
 KIRWIN                   9550   18.2     9.3    196    22.1    15.7    141
 MARQUETTE                8760   14.5      -M       *   17.9      -M       *
 MIDDLE POWDER            7760   13.9     7.0    199    17.5    16.2    108
 OWL CREEK                8975     .1      .0       *    9.5     9.5    100
 POWDER RIVER PASS        9480   13.1     6.8    193    20.2    17.0    119
 SHELL CREEK              9580   21.6    15.8    137    21.3    18.4    116
 TIMBER CREEK             7950     .2      .0       *   13.5    12.0    112
                                                -----                  -----
                Basin Index (%)                  170                    114


SHOSHONE RIVER

 BLACKWATER               9780   35.4    24.8    143    34.8    25.7    135
 EVENING STAR             9200   36.8    24.5    150    46.5    33.1    140
 MARQUETTE                8760   14.5      -M       *   17.9      -M       *
 SYLVAN ROAD              7120     .0      .0       *   25.7    20.1    128
 YOUNTS PEAK              8350     -M    12.5       *     -M    19.3       *
                                                -----                  -----
                Basin Index (%)                  146*                   136


POWDER RIVER

 BEAR TRAP MEADOW         8200     .1      .0       *   14.1    12.5    113
 CLOUD PEAK RESERVOIR     9860   25.1    15.5    162    26.0    19.4    134
 GRAVE SPRINGS            8550    9.2     4.4    209    15.4    14.9    103
 HANSEN SAWMILL           8360    3.7      .0       *   16.2    12.7    128
 MIDDLE POWDER            7760   13.9     7.0    199    17.5    16.2    108
 POWDER RIVER PASS        9480   13.1     6.8    193    20.2    17.0    119
 SOLDIER PARK             8720    9.2      -M       *   16.5      -M       *
                                                -----                  -----
                Basin Index (%)                  193                    118


TONGUE RIVER

 BIG GOOSE                7990   11.5     6.6    174    20.0    17.1    117
 BONE SPRINGS DIV         9350   25.3    15.0    169    22.3    20.7    108
 BURGESS JUNCTION         7880   16.5     9.3    177    21.2    16.8    126
 DOME LAKE                8880   16.9     7.8    217    20.9    18.9    111
 LITTLE GOOSE             8870   14.5      -M       *   23.2      -M       *
 SUCKER CREEK             8880   18.0     9.7    186    25.6    20.0    128
 TIE CREEK                6870    3.4      .0       *   19.9    17.2    116
                                                -----                  -----
                Basin Index (%)                  189                    117


BELLE FOURCHE

 COLE CANYON              5910     .0      .0       *   17.6    14.7    120
                                                -----                  -----
                Basin Index (%)                     *                   120


CHEYENNE RIVER BASIN

 BLIND PARK               6890     .1      .0       *   20.8    16.5    126
 NORTH RAPID CREEK        6130     .0      .0       *   20.0    14.4    139
                                                -----                  -----
                Basin Index (%)                     *                   132


UPPER N. PLATTE

 ARAPAHO RIDGE           10960   31.0    19.8    157    34.6    28.4    122
 BLACKHALL MTN            9820   39.4      -M       *     -M      -M       *
 COLUMBINE                9160   24.7     5.2    475      -M    30.5       *
 DIVIDE PEAK              8880   10.9     7.7    142    29.8    26.3    113
 JOE WRIGHT              10120   32.6    21.9    149    41.2    32.6    126
 LAPRELE CREEK            8375    1.6      .0       *   16.8    16.8    100
 MED BOW                 10500     -M      -M       *   48.4      -M       *
 NORTH FRENCH CREEK      10130   40.0    30.8    130    42.3    33.5    126
 NEVER SUMMER            10280   29.5    21.3    138    25.9      -M       *
 OLD BATTLE              10000   40.1    33.4    120    43.7    41.9    104
 RAWAH                    9020    6.8      .7    971*   23.2    18.8    123
 SAGE CREEK BASIN         7850     .1      .0       *   14.6    17.2     85
 SAND LAKE               10050   40.4    28.8    140    41.8    31.7    132
 SOUTH BRUSH CREEK        8440     .1      .4     25*   19.7    19.9     99
 TOWER                   10500   55.9    48.6    115    60.4    47.6    127
 WEBBER SPRINGS           9250   20.2    13.9    145    35.9    32.0    112
 WILLOW CREEK PASS        9540   15.2    10.2    149    19.3    17.2    112
 ZIRKEL                   9340   33.0    13.0    254      -M    33.3       *
                                                -----                  -----
                Basin Index (%)                  149                    116


SWEETWATER

 DEER PARK                9700     -M    11.8       *   24.2    25.9     93
 LARSEN CREEK             9000     .0     4.2      0    17.9      -M       *
 SOUTH PASS               9040   11.9     8.5    140    19.2    22.3     86
                                                -----                  -----
                Basin Index (%)                   94                     90


LOWER N. PLATTE

 CASPER MTN.              7900   14.3     6.4    223    21.1    20.3    104
 LAPRELE CREEK            8375    1.6      .0       *   16.8    16.8    100
 RENO HILL                8400   18.8     5.6    336    28.2    21.2    133
 WINDY PEAK               7900    1.2      .0       *   16.9    14.7    115
                                                -----                  -----
                Basin Index (%)                  299                    114


LARAMIE RIVER

 BROOKLYN LAKE           10240   30.1    18.0    167    37.9    27.0    140
 CINNABAR PARK            9574   21.5    13.8    156    36.7    29.4    125
 CROW CREEK               8330     .6      .0       *   17.8    15.0    119
 DEADMAN HILL            10220   28.4    17.6    161    30.5    22.8    134
 RAWAH                    9020    6.8      .7    971*   23.2    18.8    123
 ROACH                    9700   19.3    12.6    153    30.9    24.5    126
                                                -----                  -----
                Basin Index (%)                  170                    129


S. PLATTE

 BLACK MOUNTAIN           8920    5.5      -M       *   19.0      -M       *
 CROW CREEK               8330     .6      .0       *   17.8    15.0    119
 DEADMAN HILL            10220   28.4    17.6    161    30.5    22.8    134
                                                -----                  -----
                Basin Index (%)                  165*                   128


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     .0      .0       *   20.1    18.5    109
 DIVIDE PEAK              8880   10.9     7.7    142    29.8    26.3    113
 ELK RIVER                8700    8.1      .3   2700*   26.9    24.4    110
 LITTLE SNAKE RIVER       8915     -M    15.5       *     -M    35.0       *
 OLD BATTLE              10000   40.1    33.4    120    43.7    41.9    104
 SAGE CREEK BASIN         7850     .1      .0       *   14.6    17.2     85
 SANDSTONE RS             8150     -M      .0       *   20.7    22.4     92
 WHISKEY PARK             8950   30.5    23.2    131    45.9    33.7    136
                                                -----                  -----
                Basin Index (%)                  139*                   109


UPPER GREEN RIVER

 BIG SANDY OPENING        9080   10.0     5.2    192    17.2    16.8    102
 BLIND BULL SUM           8650   38.2    21.0    182    26.1    23.1    113
 EAST RIM DIVIDE          7930     .0     1.8      0    17.8    14.0    127
 ELKHART PARK G.S.        9400   15.3     6.9    222    20.3    16.6    122
 GROS VENTRE SUMMIT       8750   10.8     7.0    154    16.9    16.0    106
 GUNSIGHT PASS            9820   18.5    11.4    162    22.1    17.6    126
 KENDALL R.S.             7740    7.8      .0       *   24.9    16.7    149
 LOOMIS PARK              8240   13.1     4.0    328    27.7    20.4    136
 NEW FORK LAKE            8340    3.9      .0       *   15.0    13.4    112
 POCKET CREEK             9360   10.6      -M       *   15.2      -M       *
 SNIDER BASIN             8060     .0     1.7      0    21.7    16.7    130
 SPRING CREEK DIVIDE      9000   35.1    21.5    163    36.5    27.9    131
 TRIPLE PEAK              8500   24.2    10.3    235    41.4    30.1    138
                                                -----                  -----
                Basin Index (%)                  195                    125


LOWER GREEN RIVER

 BLACKS FORK JCT          8870     .0      -M       *   16.7      -M       *
 BUCK PASTURE             9700    5.6      -M       *   21.2      -M       *
 EF BLACKS FORK GS        9360     -M      -M       *   13.9      -M       *
 HAMS FORK                7840     .0      .0       *   16.8    14.3    117
 HEWINTA                  9519     .0      .0       *   18.3    17.6    104
 HICKERSON PARK           9145     .2      .0       *   12.1    13.3     91
 HOLE-IN-ROCK             9150     .0      .0       *   13.3    12.9    103
 INDIAN CREEK             9425   27.7    20.0    138    30.7    26.9    114
 KELLEY R.S.              8180    8.7     4.3    202    23.6    21.6    109
 SPIRIT LK               10235    4.3      -M       *   18.7      -M       *
 STEEL CREEK PARK        10200   20.1    15.5    130    21.1    20.9    101
                                                -----                  -----
                Basin Index (%)                  142*                   107


UPPER BEAR RIVER

 BEAR RIVER RS            8777     .0      -M       *   15.3      -M       *
 BUG LAKE                 7950   11.5     7.4    155    24.4    23.3    105
 BURTS MILLER RANCH       8000     .1      -M       *    8.7      -M       *
 CHALK CREEK #1           8993   14.7    17.2     85    27.5    30.7     90
 HAYDEN FORK              9212     .1      .4     25*   25.1    25.6     98
 KELLEY R.S.              8180    8.7     4.3    202    23.6    21.6    109
 LILY LAKE                9156    2.5      .0       *   18.6    21.2     88
 MONTE CRISTO             8960   17.3    16.7    104    30.0    31.4     96
 SALT RIVER SUMMIT        7760    3.9      .0       *   22.3    19.8    113
                                                -----                  -----
                Basin Index (%)                  128*                    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.