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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 THURSDAY: MAY 1 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030   18.3     9.3    197    28.8    22.8    126
 BLACK BEAR               8170   45.9    37.4    123    45.7    41.7    110
 BLIND BULL SUM           8650   38.3    23.1    166    24.7    21.3    116
 COTTONWOOD CREEK         7670   28.2    15.3    184    37.2    27.4    136
 EAST RIM DIVIDE          7930   11.6     8.2    141    16.6    12.9    129
 GRAND TARGHEE            9260   55.5    44.8    124      -M    34.6       *
 GRANITE CREEK            6770   19.4     8.3    234    26.2    21.3    123
 GRASSY LAKE              7265   39.5    29.1    136    44.1    39.3    112
 GROS VENTRE SUMMIT       8750   14.3    11.6    123    15.8    14.6    108
 GUNSIGHT PASS            9820   20.7    12.5    166    20.6    16.0    129
 LEWIS LAKE DIVIDE        7850   43.1    30.1    143    44.1    38.5    115
 PHILLIPS BENCH           8200   36.7    25.4    144    38.4    30.7    125
 SALT RIVER SUMMIT        7760   13.9     7.9    176    20.7    18.4    112
 SNAKE RIVER STATION      6920   15.1     7.4    204    28.4    24.8    115
 SPRING CREEK DIVIDE      9000   38.4    24.3    158    34.6    26.2    132
 THUMB DIVIDE             7980   20.2    12.4    163    22.0    20.9    105
 TOGWOTEE PASS            9580   35.2    24.7    143    36.1    27.2    133
 TWO OCEAN PLATEAU        9240   39.7    29.7    134    37.7    30.1    125
 WILLOW CREEK             8380   40.3    23.0    175    44.7    37.6    119
 YOUNTS PEAK              8350     -M    15.5       *     -M    17.6       *
                                                -----                  -----
                Basin Index (%)                  149                    120


MADISON-GALLATIN

 BLACK BEAR               8170   45.9    37.4    123    45.7    41.7    110
 CANYON                   7870   15.4    10.4    148    19.2    18.0    107
 MADISON PLATEAU          7750   27.4    21.3    129    29.1    28.9    101
 WEST YELLOWSTONE         6700    4.2     1.8    233    18.7    16.0    117
 WHISKEY CREEK            6800   17.4    14.6    119    24.7    22.3    111
                                                -----                  -----
                Basin Index (%)                  129                    108


YELLOWSTONE

 BEARTOOTH LAKE           9360   34.9    22.8    153    33.2    21.9    152
 BURNT MTN                5880    5.2      .0       *   22.7    15.9    143
 CANYON                   7870   15.4    10.4    148    19.2    18.0    107
 COLE CREEK               7850   25.7    16.6    155    19.6    16.4    120
 EVENING STAR             9200   42.5    24.9    171    44.9    30.4    148
 FISHER CREEK             9100   47.9    32.7    146    44.5    35.1    127
 NORTHEAST ENTRANCE       7350   11.4     3.0    380    18.0    13.8    130
 PARKER PEAK              9400   37.7    21.3    177    33.7    20.0    168
 SYLVAN LAKE              8420   25.4    19.8    128    33.4    25.1    133
 THUMB DIVIDE             7980   20.2    12.4    163    22.0    20.9    105
 TWO OCEAN PLATEAU        9240   39.7    29.7    134    37.7    30.1    125
 WHITE MILL               8700   36.5    23.8    153    32.8    26.3    125
 WOLVERINE                7650   12.7     2.5    508    20.0    13.7    146
                                                -----                  -----
                Basin Index (%)                  162                    133


WIND RIVER

 BURROUGHS CREEK          8750     -M    12.9       *     -M    17.9       *
 CASTLE CREEK             8400    5.9      -M       *   13.3      -M       *
 COLD SPRINGS             9630    6.2     1.3    477    14.3    12.4    115
 DEER PARK                9700   18.2    16.0    114    21.7    23.4     93
 HOBBS PARK              10100   16.3    16.0    102    15.7    16.6     95
 KIRWIN                   9550   19.2    10.4    185    19.9    13.8    144
 LITTLE WARM              9370   13.4     8.7    154    18.4    15.4    119
 OWL CREEK                8975    1.8     1.0    180     8.8     7.9    111
 SOUTH PASS               9040   15.2    14.9    102    16.8    20.3     83
 ST. LAWRENCE ALT         8620     .0     2.5      0    10.5    11.5     91
 TOGWOTEE PASS            9580   35.2    24.7    143    36.1    27.2    133
 TOWNSEND CREEK           8700    5.3     7.5     71    10.9    14.9     73
                                                -----                  -----
                Basin Index (%)                  127                    106


BIGHORN BASIN

 BALD MTN.                9380   30.0    20.5    146    23.3    19.7    118
 BEAR TRAP MEADOW         8200    8.0      .9    889    12.8    10.6    121
 BONE SPRINGS DIV         9350   25.4    16.5    154    20.2    18.2    111
 GRAVE SPRINGS            8550   13.3     9.4    141    14.4    12.8    112
 KIRWIN                   9550   19.2    10.4    185    19.9    13.8    144
 MARQUETTE                8760   15.7      -M       *   15.5      -M       *
 MIDDLE POWDER            7760   18.9    11.6    163    16.6    14.1    118
 OWL CREEK                8975    1.8     1.0    180     8.8     7.9    111
 POWDER RIVER PASS        9480   15.8     9.4    168    18.6    15.1    123
 SHELL CREEK              9580   22.1    15.9    139    19.5    16.3    120
 TIMBER CREEK             7950    1.4     3.1     45    11.1    10.0    111
                                                -----                  -----
                Basin Index (%)                  158                    119


SHOSHONE RIVER

 BLACKWATER               9780   36.0    25.3    142    33.4    23.4    143
 EVENING STAR             9200   42.5    24.9    171    44.9    30.4    148
 MARQUETTE                8760   15.7      -M       *   15.5      -M       *
 SYLVAN ROAD              7120    7.9     5.8    136    24.6    18.6    132
 YOUNTS PEAK              8350     -M    15.5       *     -M    17.6       *
                                                -----                  -----
                Basin Index (%)                  154                    142


POWDER RIVER

 BEAR TRAP MEADOW         8200    8.0      .9    889    12.8    10.6    121
 CLOUD PEAK RESERVOIR     9860   24.6    16.5    149    22.7    16.6    137
 GRAVE SPRINGS            8550   13.3     9.4    141    14.4    12.8    112
 HANSEN SAWMILL           8360    8.4     2.5    336    14.3    10.8    132
 MIDDLE POWDER            7760   18.9    11.6    163    16.6    14.1    118
 POWDER RIVER PASS        9480   15.8     9.4    168    18.6    15.1    123
 SOLDIER PARK             8720   12.9      -M       *   14.5      -M       *
                                                -----                  -----
                Basin Index (%)                  177                    124


TONGUE RIVER

 BIG GOOSE                7990   13.2     9.2    143    17.8    14.0    127
 BONE SPRINGS DIV         9350   25.4    16.5    154    20.2    18.2    111
 BURGESS JUNCTION         7880   18.4    12.1    152    19.5    14.8    132
 DOME LAKE                8880   18.0    11.4    158    18.4    16.4    112
 LITTLE GOOSE             8870   15.6      -M       *   20.5      -M       *
 SUCKER CREEK             8880   19.2    12.2    157    23.4    17.3    135
 TIE CREEK                6870    7.3     2.7    270    18.2    14.3    127
                                                -----                  -----
                Basin Index (%)                  158                    124


BELLE FOURCHE

 COLE CANYON              5910    4.0      .3   1333*   15.8    11.8    134
                                                -----                  -----
                Basin Index (%)                 1333*                   134


CHEYENNE RIVER BASIN

 BLIND PARK               6890    3.0      .8    375    19.3    14.3    135
 NORTH RAPID CREEK        6130    3.8      .8    475    18.7    12.2    153
                                                -----                  -----
                Basin Index (%)                  425                    143


UPPER N. PLATTE

 ARAPAHO RIDGE           10960   29.8    22.3    134    30.6    26.2    117
 BLACKHALL MTN            9820   39.6      -M       *     -M      -M       *
 COLUMBINE                9160   31.3    18.2    172      -M    28.5       *
 DIVIDE PEAK              8880   15.7    18.0     87    25.3    24.3    104
 JOE WRIGHT              10120   28.9    23.3    124    37.3    29.8    125
 LAPRELE CREEK            8375    6.7     6.1    110    14.3    15.0     95
 MED BOW                 10500     -M      -M       *   43.8      -M       *
 NORTH FRENCH CREEK      10130   40.6    32.9    123    39.6    30.7    129
 NEVER SUMMER            10280   28.9    21.8    133    23.7      -M       *
 OLD BATTLE              10000   35.9    34.7    103    39.8    39.2    102
 RAWAH                    9020   10.0     6.1    164    20.4    17.2    119
 SAGE CREEK BASIN         7850    1.8     1.1    164*   14.0    16.1     87
 SAND LAKE               10050   37.0    31.4    118    37.0    29.0    128
 SOUTH BRUSH CREEK        8440    8.8     9.2     96    18.3    17.8    103
 TOWER                   10500   54.8    50.0    110    55.9    44.7    125
 WEBBER SPRINGS           9250   22.7    21.7    105    31.2    29.9    104
 WILLOW CREEK PASS        9540   16.7    14.2    118    17.4    15.8    110
 ZIRKEL                   9340   37.7    21.0    180      -M    31.0       *
                                                -----                  -----
                Basin Index (%)                  123                    114


SWEETWATER

 DEER PARK                9700   18.2    16.0    114    21.7    23.4     93
 LARSEN CREEK             9000    7.8     9.2     85    16.5      -M       *
 SOUTH PASS               9040   15.2    14.9    102    16.8    20.3     83
                                                -----                  -----
                Basin Index (%)                  103                     88


LOWER N. PLATTE

 CASPER MTN.              7900   18.2    13.3    137    18.8    17.9    105
 LAPRELE CREEK            8375    6.7     6.1    110    14.3    15.0     95
 RENO HILL                8400   19.7    12.6    156    24.8    18.9    131
 WINDY PEAK               7900    6.9     4.0    172    14.6    13.0    112
                                                -----                  -----
                Basin Index (%)                  143                    112


LARAMIE RIVER

 BROOKLYN LAKE           10240   31.2    23.3    134    33.8    24.7    137
 CINNABAR PARK            9574   24.4    19.4    126    32.5    26.9    121
 CROW CREEK               8330    1.6      .0       *   14.4    13.4    107
 DEADMAN HILL            10220   27.4    19.0    144    27.0    20.6    131
 RAWAH                    9020   10.0     6.1    164    20.4    17.2    119
 ROACH                    9700   20.9    17.2    122    26.8    22.2    121
                                                -----                  -----
                Basin Index (%)                  136                    124


S. PLATTE

 BLACK MOUNTAIN           8920   10.5      -M       *     -M      -M       *
 CROW CREEK               8330    1.6      .0       *   14.4    13.4    107
 DEADMAN HILL            10220   27.4    19.0    144    27.0    20.6    131
                                                -----                  -----
                Basin Index (%)                  153*                   122


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440     .1      .0       *   19.1    17.1    112
 DIVIDE PEAK              8880   15.7    18.0     87    25.3    24.3    104
 ELK RIVER                8700   15.9    13.2    120    24.7    22.7    109
 LITTLE SNAKE RIVER       8915   26.2    22.3    117    37.3    32.7    114
 OLD BATTLE              10000   35.9    34.7    103    39.8    39.2    102
 SAGE CREEK BASIN         7850    1.8     1.1    164*   14.0    16.1     87
 SANDSTONE RS             8150    5.0     5.9     85    19.3    20.8     93
 WHISKEY PARK             8950   37.9    26.5    143    43.2    31.5    137
                                                -----                  -----
                Basin Index (%)                  114                    109


UPPER GREEN RIVER

 BIG SANDY OPENING        9080   14.4    10.6    136    15.6    15.1    103
 BLIND BULL SUM           8650   38.3    23.1    166    24.7    21.3    116
 EAST RIM DIVIDE          7930   11.6     8.2    141    16.6    12.9    129
 ELKHART PARK G.S.        9400   18.4    11.3    163    18.3    15.0    122
 GROS VENTRE SUMMIT       8750   14.3    11.6    123    15.8    14.6    108
 GUNSIGHT PASS            9820   20.7    12.5    166    20.6    16.0    129
 KENDALL R.S.             7740   16.5     4.3    384    23.8    15.5    154
 LOOMIS PARK              8240   22.9    11.0    208    26.3    18.9    139
 NEW FORK LAKE            8340   12.1     6.5    186    14.0    12.1    116
 POCKET CREEK             9360   12.5      -M       *   13.5      -M       *
 SNIDER BASIN             8060   12.8     9.4    136    20.4    15.6    131
 SPRING CREEK DIVIDE      9000   38.4    24.3    158    34.6    26.2    132
 TRIPLE PEAK              8500   32.7    17.5    187    39.2    27.9    141
                                                -----                  -----
                Basin Index (%)                  168                    128


LOWER GREEN RIVER

 BLACKS FORK JCT          8870    3.8      -M       *   15.3      -M       *
 BUCK PASTURE             9700   12.2      -M       *   19.8      -M       *
 EF BLACKS FORK GS        9360    6.1      -M       *   11.6      -M       *
 HAMS FORK                7840    9.2     2.9    317    15.0    13.1    115
 HEWINTA                  9519    6.9     4.8    144    16.3    16.1    101
 HICKERSON PARK           9145     .0     4.2      0     9.5    12.0     79
 HOLE-IN-ROCK             9150     .0     2.5      0    11.0    11.4     96
 INDIAN CREEK             9425   32.7    23.0    142    28.4    25.0    114
 KELLEY R.S.              8180   15.7    11.5    137    21.7    20.2    107
 SPIRIT LK               10235    8.9      -M       *   15.7      -M       *
 STEEL CREEK PARK        10200   21.8    17.1    127    18.7    19.1     98
                                                -----                  -----
                Basin Index (%)                  131                    103


UPPER BEAR RIVER

 BEAR RIVER RS            8777     .0      -M       *   14.3      -M       *
 BUG LAKE                 7950   20.0    15.1    132    22.2    21.7    102
 BURTS MILLER RANCH       8000     .0      -M       *    7.8      -M       *
 CHALK CREEK #1           8993   20.8    24.2     86    26.0    28.4     92
 HAYDEN FORK              9212   10.0     9.3    108    24.1    23.8    101
 KELLEY R.S.              8180   15.7    11.5    137    21.7    20.2    107
 LILY LAKE                9156   10.8     9.9    109    17.5    19.5     90
 MONTE CRISTO             8960   24.2    26.5     91    28.1    29.2     96
 SALT RIVER SUMMIT        7760   13.9     7.9    176    20.7    18.4    112
                                                -----                  -----
                Basin Index (%)                  111                     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.