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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 4 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030   14.6     7.8    187    28.8    23.1    125
 BLACK BEAR               8170   45.9    37.3    123    45.7    42.2    108
 BLIND BULL SUM           8650   36.6    22.8    161    24.7    21.6    114
 COTTONWOOD CREEK         7670   24.0    14.4    167    37.2    27.8    134
 EAST RIM DIVIDE          7930    7.3     7.7     95    16.6    13.1    127
 GRAND TARGHEE            9260   52.8    45.7    116      -M    35.2       *
 GRANITE CREEK            6770   16.9     7.6    222    26.2    21.6    121
 GRASSY LAKE              7265   36.8    27.9    132    44.1    39.7    111
 GROS VENTRE SUMMIT       8750   13.5    11.1    122    15.7    14.9    105
 GUNSIGHT PASS            9820   19.7    12.0    164    20.8    16.3    128
 LEWIS LAKE DIVIDE        7850   40.7    29.6    138    44.1    39.0    113
 PHILLIPS BENCH           8200   36.1    24.5    147    38.4    31.0    124
 SALT RIVER SUMMIT        7760   10.3     7.4    139    20.8    18.6    112
 SNAKE RIVER STATION      6920   10.6     5.6    189    28.4    25.0    114
 SPRING CREEK DIVIDE      9000   37.4    24.3    154    34.6    26.5    131
 THUMB DIVIDE             7980   17.1    10.8    158    22.1    21.2    104
 TOGWOTEE PASS            9580   33.1    24.7    134    36.1    27.7    130
 TWO OCEAN PLATEAU        9240   39.2    29.9    131    37.7    30.5    124
 WILLOW CREEK             8380   36.1    22.0    164    44.7    38.1    117
 YOUNTS PEAK              8350     -M    15.8       *     -M    18.0       *
                                                -----                  -----
                Basin Index (%)                  142                    119


MADISON-GALLATIN

 BLACK BEAR               8170   45.9    37.3    123    45.7    42.2    108
 CANYON                   7870   13.7     9.1    151    19.2    18.2    105
 MADISON PLATEAU          7750   25.8    20.9    123    29.1    29.2    100
 WEST YELLOWSTONE         6700     .3      .2    150*   18.6    16.2    115
 WHISKEY CREEK            6800   16.2    13.3    122    24.6    22.6    109
                                                -----                  -----
                Basin Index (%)                  126                    107


YELLOWSTONE

 BEARTOOTH LAKE           9360   31.1    22.7    137    33.4    22.2    150
 BURNT MTN                5880    2.3      .0       *   22.9    16.2    141
 CANYON                   7870   13.7     9.1    151    19.2    18.2    105
 COLE CREEK               7850   23.6    16.7    141    19.4    16.7    116
 EVENING STAR             9200   41.5    24.9    167    45.0    30.8    146
 FISHER CREEK             9100   48.4    32.7    148    44.5    35.5    125
 NORTHEAST ENTRANCE       7350    8.0     1.6    500    18.1    14.0    129
 PARKER PEAK              9400   37.9    21.2    179    33.7    20.3    166
 SYLVAN LAKE              8420   24.2    19.0    127    33.5    25.4    132
 THUMB DIVIDE             7980   17.1    10.8    158    22.1    21.2    104
 TWO OCEAN PLATEAU        9240   39.2    29.9    131    37.7    30.5    124
 WHITE MILL               8700   35.2    24.0    147    32.9    26.6    124
 WOLVERINE                7650   10.4     1.1    945    20.2    14.0    144
                                                -----                  -----
                Basin Index (%)                  156                    131


WIND RIVER

 BURROUGHS CREEK          8750     -M    12.6       *     -M    18.2       *
 CASTLE CREEK             8400    2.7      -M       *   13.3      -M       *
 COLD SPRINGS             9630    3.7     1.4    264    13.8    12.7    109
 DEER PARK                9700     -M    15.4       *   21.8    23.8     92
 HOBBS PARK              10100   14.3    16.0     89    15.8    17.0     93
 KIRWIN                   9550   19.7    10.6    186    19.9    14.1    141
 LITTLE WARM              9370   11.3     8.1    140    18.5    15.6    119
 OWL CREEK                8975     .1      .6     17     8.8     8.1    109
 SOUTH PASS               9040   13.6    14.1     96    16.9    20.7     82
 ST. LAWRENCE ALT         8620     .3     2.0     15    10.4    11.8     88
 TOGWOTEE PASS            9580   33.1    24.7    134    36.1    27.7    130
 TOWNSEND CREEK           8700    2.9     6.6     44    11.5    15.2     76
                                                -----                  -----
                Basin Index (%)                  118                    104


BIGHORN BASIN

 BALD MTN.                9380   30.1    20.4    148    23.4    20.0    117
 BEAR TRAP MEADOW         8200    5.3      .4   1325*   12.8    10.9    117
 BONE SPRINGS DIV         9350   23.8    16.4    145    20.5    18.6    110
 GRAVE SPRINGS            8550   12.0     9.3    129    14.4    13.1    110
 KIRWIN                   9550   19.7    10.6    186    19.9    14.1    141
 MARQUETTE                8760   14.7      -M       *   15.6      -M       *
 MIDDLE POWDER            7760   17.8    11.4    156    16.7    14.4    116
 OWL CREEK                8975     .1      .6     17     8.8     8.1    109
 POWDER RIVER PASS        9480   13.3     9.1    146    18.7    15.4    121
 SHELL CREEK              9580   19.1    16.0    119    19.5    16.6    117
 TIMBER CREEK             7950     .2     2.5      8    11.1    10.2    109
                                                -----                  -----
                Basin Index (%)                  146                    117


SHOSHONE RIVER

 BLACKWATER               9780   35.5    25.8    138    33.3    23.8    140
 EVENING STAR             9200   41.5    24.9    167    45.0    30.8    146
 MARQUETTE                8760   14.7      -M       *   15.6      -M       *
 SYLVAN ROAD              7120    3.6     4.1     88    24.5    18.8    130
 YOUNTS PEAK              8350     -M    15.8       *     -M    18.0       *
                                                -----                  -----
                Basin Index (%)                  147                    140


POWDER RIVER

 BEAR TRAP MEADOW         8200    5.3      .4   1325*   12.8    10.9    117
 CLOUD PEAK RESERVOIR     9860   23.7    16.3    145    23.1    17.0    136
 GRAVE SPRINGS            8550   12.0     9.3    129    14.4    13.1    110
 HANSEN SAWMILL           8360    6.1     1.7    359    14.4    11.1    130
 MIDDLE POWDER            7760   17.8    11.4    156    16.7    14.4    116
 POWDER RIVER PASS        9480   13.3     9.1    146    18.7    15.4    121
 SOLDIER PARK             8720   10.6      -M       *   14.5      -M       *
                                                -----                  -----
                Basin Index (%)                  162                    122


TONGUE RIVER

 BIG GOOSE                7990   11.5     9.4    122    18.0    14.4    125
 BONE SPRINGS DIV         9350   23.8    16.4    145    20.5    18.6    110
 BURGESS JUNCTION         7880   17.6    11.8    149    19.6    15.0    131
 DOME LAKE                8880   16.0    11.3    142    18.6    16.7    111
 LITTLE GOOSE             8870   14.2      -M       *   20.6      -M       *
 SUCKER CREEK             8880   18.0    11.9    151    23.5    17.7    133
 TIE CREEK                6870    6.1     2.5    244    18.1    14.7    123
                                                -----                  -----
                Basin Index (%)                  147                    122


BELLE FOURCHE

 COLE CANYON              5910    3.2      .0       *   16.1    12.4    130
                                                -----                  -----
                Basin Index (%)                     *                   130


CHEYENNE RIVER BASIN

 BLIND PARK               6890     .7      .2    350*   19.3    14.6    132
 NORTH RAPID CREEK        6130    2.4      .0       *   18.7    12.6    148
                                                -----                  -----
                Basin Index (%)                 1550*                   140


UPPER N. PLATTE

 ARAPAHO RIDGE           10960   29.4    22.3    132    30.8    26.6    116
 BLACKHALL MTN            9820   38.8      -M       *     -M      -M       *
 COLUMBINE                9160   28.5    17.1    167      -M    28.9       *
 DIVIDE PEAK              8880   13.4    17.5     77    25.5    24.8    103
 JOE WRIGHT              10120   29.5    22.9    129    37.5    30.4    123
 LAPRELE CREEK            8375    5.3     5.4     98    14.5    15.3     95
 MED BOW                 10500     -M      -M       *   44.8      -M       *
 NORTH FRENCH CREEK      10130   40.1    32.7    123    39.6    31.2    127
 NEVER SUMMER            10280   28.7    21.8    132    23.8      -M       *
 OLD BATTLE              10000   35.7    34.8    103    40.2    39.7    101
 RAWAH                    9020    8.6     4.8    179    20.6    17.6    117
 SAGE CREEK BASIN         7850     .1      .8     12*   13.8    16.4     84
 SAND LAKE               10050   37.0    31.6    117    37.1    29.5    126
 SOUTH BRUSH CREEK        8440    6.9     7.9     87    18.4    18.2    101
 TOWER                   10500   54.7    50.7    108    56.1    45.3    124
 WEBBER SPRINGS           9250   21.3    21.1    101    31.2    30.3    103
 WILLOW CREEK PASS        9540   16.5    14.5    114    17.3    16.0    108
 ZIRKEL                   9340   36.7    20.7    177      -M    31.3       *
                                                -----                  -----
                Basin Index (%)                  120                    112


SWEETWATER

 DEER PARK                9700     -M    15.4       *   21.8    23.8     92
 LARSEN CREEK             9000    5.1     8.3     61    16.6      -M       *
 SOUTH PASS               9040   13.6    14.1     96    16.9    20.7     82
                                                -----                  -----
                Basin Index (%)                   83                     87


LOWER N. PLATTE

 CASPER MTN.              7900   16.8    12.5    134    19.0    18.4    103
 LAPRELE CREEK            8375    5.3     5.4     98    14.5    15.3     95
 RENO HILL                8400   18.3    12.1    151    25.0    19.3    130
 WINDY PEAK               7900    5.3     3.1    171    14.5    13.2    110
                                                -----                  -----
                Basin Index (%)                  138                    110


LARAMIE RIVER

 BROOKLYN LAKE           10240   30.7    23.0    133    33.9    25.1    135
 CINNABAR PARK            9574   24.0    18.8    128    32.4    27.3    119
 CROW CREEK               8330     .0      .0       *   14.4    13.7    105
 DEADMAN HILL            10220   27.7    19.1    145    27.1    21.0    129
 RAWAH                    9020    8.6     4.8    179    20.6    17.6    117
 ROACH                    9700   19.0    17.1    111    26.9    22.6    119
                                                -----                  -----
                Basin Index (%)                  133                    122


S. PLATTE

 BLACK MOUNTAIN           8920    9.1      -M       *     -M      -M       *
 CROW CREEK               8330     .0      .0       *   14.4    13.7    105
 DEADMAN HILL            10220   27.7    19.1    145    27.1    21.0    129
                                                -----                  -----
                Basin Index (%)                  145*                   120


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     .0      .0       *   19.1    17.4    110
 DIVIDE PEAK              8880   13.4    17.5     77    25.5    24.8    103
 ELK RIVER                8700   13.5    12.0    112    24.9    23.1    108
 LITTLE SNAKE RIVER       8915   23.8    21.7    110    37.3    33.2    112
 OLD BATTLE              10000   35.7    34.8    103    40.2    39.7    101
 SAGE CREEK BASIN         7850     .1      .8     12*   13.8    16.4     84
 SANDSTONE RS             8150    1.9     4.6     41    19.4    21.0     92
 WHISKEY PARK             8950   36.2    26.9    135    43.0    32.0    134
                                                -----                  -----
                Basin Index (%)                  105                    108


UPPER GREEN RIVER

 BIG SANDY OPENING        9080   12.8     9.4    136    15.6    15.5    101
 BLIND BULL SUM           8650   36.6    22.8    161    24.7    21.6    114
 EAST RIM DIVIDE          7930    7.3     7.7     95    16.6    13.1    127
 ELKHART PARK G.S.        9400   16.8    10.6    158    18.3    15.2    120
 GROS VENTRE SUMMIT       8750   13.5    11.1    122    15.7    14.9    105
 GUNSIGHT PASS            9820   19.7    12.0    164    20.8    16.3    128
 KENDALL R.S.             7740   13.9     2.6    535    23.9    15.7    152
 LOOMIS PARK              8240   18.6    10.0    186    26.4    19.2    138
 NEW FORK LAKE            8340    9.5     5.5    173    14.0    12.3    114
 POCKET CREEK             9360   12.0      -M       *   13.6      -M       *
 SNIDER BASIN             8060   10.3     8.5    121    20.5    15.8    130
 SPRING CREEK DIVIDE      9000   37.4    24.3    154    34.6    26.5    131
 TRIPLE PEAK              8500   29.8    16.3    183    39.3    28.2    139
                                                -----                  -----
                Basin Index (%)                  161                    126


LOWER GREEN RIVER

 BLACKS FORK JCT          8870    1.4      -M       *   15.2      -M       *
 BUCK PASTURE             9700   10.1      -M       *   19.6      -M       *
 EF BLACKS FORK GS        9360    3.6      -M       *   11.7      -M       *
 HAMS FORK                7840    5.2     1.5    347    15.1    13.3    114
 HEWINTA                  9519    4.2     4.2    100    16.2    16.5     98
 HICKERSON PARK           9145     .2     3.2      6     9.6    12.2     79
 HOLE-IN-ROCK             9150     .0     1.7      0    11.1    11.8     94
 INDIAN CREEK             9425   30.3    22.1    137    28.5    25.3    113
 KELLEY R.S.              8180   12.9    10.4    124    21.8    20.5    106
 SPIRIT LK               10235    6.9      -M       *   15.8      -M       *
 STEEL CREEK PARK        10200   20.8    17.4    120    18.6    19.5     95
                                                -----                  -----
                Basin Index (%)                  122                    102


UPPER BEAR RIVER

 BEAR RIVER RS            8777     .0      -M       *   14.2      -M       *
 BUG LAKE                 7950   17.1    13.8    124    22.3    22.0    101
 BURTS MILLER RANCH       8000     .1      -M       *    7.9      -M       *
 CHALK CREEK #1           8993   18.9    23.4     81    25.9    28.9     90
 HAYDEN FORK              9212    6.7     8.6     78    24.1    24.1    100
 KELLEY R.S.              8180   12.9    10.4    124    21.8    20.5    106
 LILY LAKE                9156    8.6     9.7     89    17.4    19.9     87
 MONTE CRISTO             8960   21.5    25.3     85    28.2    29.7     95
 SALT RIVER SUMMIT        7760   10.3     7.4    139    20.8    18.6    112
                                                -----                  -----
                Basin Index (%)                   97                     98

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


 -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.