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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

At 4:43a, 5/25/18
Temperature 49.1°F
Wind 0.0 mph


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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 MONDAY: APRIL 21 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030   20.1    11.7    172    27.3    21.8    125
 BLACK BEAR               8170   43.5    36.9    118    41.7    40.0    104
 BLIND BULL SUM           8650   37.4    24.1    155    23.7    20.3    117
 COTTONWOOD CREEK         7670   27.1    18.3    148    35.2    26.0    135
 EAST RIM DIVIDE          7930   14.3     9.4    152    16.0    12.3    130
 GRAND TARGHEE            9260   52.5    42.2    124      -M    32.8       *
 GRANITE CREEK            6770   21.1    10.5    201    24.7    20.4    121
 GRASSY LAKE              7265   40.7    31.1    131    41.5    37.6    110
 GROS VENTRE SUMMIT       8750   14.4    13.2    109    15.0    13.8    109
 GUNSIGHT PASS            9820   21.3    13.7    155    19.4    15.0    129
 LEWIS LAKE DIVIDE        7850   41.2    30.5    135    41.7    37.0    113
 PHILLIPS BENCH           8200   34.3    25.4    135    35.3    29.3    120
 SALT RIVER SUMMIT        7760   14.8     9.4    157    19.5    17.4    112
 SNAKE RIVER STATION      6920   17.4    11.1    157    27.0    23.6    114
 SPRING CREEK DIVIDE      9000   37.4    23.5    159    33.5    24.9    135
 THUMB DIVIDE             7980   20.8    14.4    144    20.3    19.8    103
 TOGWOTEE PASS            9580   33.4    24.0    139    34.2    25.8    133
 TWO OCEAN PLATEAU        9240   40.2    28.3    142    35.1    28.7    122
 WILLOW CREEK             8380   41.5    26.7    155    42.4    35.4    120
 YOUNTS PEAK              8350     -M    15.2       *     -M    16.7       *
                                                -----                  -----
                Basin Index (%)                  142                    119


MADISON-GALLATIN

 BLACK BEAR               8170   43.5    36.9    118    41.7    40.0    104
 CANYON                   7870   15.6    12.2    128    17.8    17.1    104
 MADISON PLATEAU          7750   25.3    22.9    110    26.2    27.6     95
 WEST YELLOWSTONE         6700    9.0     7.0    129    17.0    15.2    112
 WHISKEY CREEK            6800   17.4    15.4    113    22.3    21.3    105
                                                -----                  -----
                Basin Index (%)                  117                    103


YELLOWSTONE

 BEARTOOTH LAKE           9360   33.1    23.5    141    31.4    20.8    151
 BURNT MTN                5880    8.7      .0       *   21.2    14.4    147
 CANYON                   7870   15.6    12.2    128    17.8    17.1    104
 COLE CREEK               7850   24.9    16.4    152    18.3    14.6    125
 EVENING STAR             9200   40.5    24.7    164    42.4    28.9    147
 FISHER CREEK             9100   46.1    32.6    141    41.6    33.5    124
 NORTHEAST ENTRANCE       7350   13.8     6.4    216    16.6    13.0    128
 PARKER PEAK              9400   34.4    21.1    163    31.0    18.8    165
 SYLVAN LAKE              8420   23.2    20.4    114    30.4    23.7    128
 THUMB DIVIDE             7980   20.8    14.4    144    20.3    19.8    103
 TWO OCEAN PLATEAU        9240   40.2    28.3    142    35.1    28.7    122
 WHITE MILL               8700   34.3    23.7    145    30.5    25.0    122
 WOLVERINE                7650   15.6     6.9    226    18.2    12.9    141
                                                -----                  -----
                Basin Index (%)                  152                    131


WIND RIVER

 BURROUGHS CREEK          8750     -M    13.2       *     -M    16.8       *
 CASTLE CREEK             8400    8.5      -M       *   13.0      -M       *
 COLD SPRINGS             9630    8.8     4.3    205    13.4    11.0    122
 DEER PARK                9700     -M    16.3       *   20.3    21.7     94
 HOBBS PARK              10100   16.0    14.9    107    14.9    14.9    100
 KIRWIN                   9550     -M    10.0       *   19.3    12.5    154
 LITTLE WARM              9370   14.3    10.0    143    17.8    14.0    127
 OWL CREEK                8975    5.6     3.7    151     8.5     6.9    123
 SOUTH PASS               9040   15.1    15.4     98    15.9    18.7     85
 ST. LAWRENCE ALT         8620    1.0     5.2     19     9.1    10.0     91
 TOGWOTEE PASS            9580   33.4    24.0    139    34.2    25.8    133
 TOWNSEND CREEK           8700    7.4     9.3     80    10.3    13.4     77
                                                -----                  -----
                Basin Index (%)                  117                    110


BIGHORN BASIN

 BALD MTN.                9380   27.8    19.9    140    22.2    18.4    121
 BEAR TRAP MEADOW         8200   10.3     2.9    355    12.6     9.5    133
 BONE SPRINGS DIV         9350   23.8    16.1    148    18.8    16.8    112
 GRAVE SPRINGS            8550   13.3     9.5    140    14.0    11.8    119
 KIRWIN                   9550     -M    10.0       *   19.3    12.5    154
 MARQUETTE                8760   15.1      -M       *   14.2      -M       *
 MIDDLE POWDER            7760   19.3    12.4    156    15.8    12.9    122
 OWL CREEK                8975    5.6     3.7    151     8.5     6.9    123
 POWDER RIVER PASS        9480   15.8    10.2    155    18.1    13.8    131
 SHELL CREEK              9580   20.8    15.4    135    18.4    14.9    123
 TIMBER CREEK             7950    5.9     4.6    128    10.4     8.5    122
                                                -----                  -----
                Basin Index (%)                  151                    125


SHOSHONE RIVER

 BLACKWATER               9780   34.3    23.8    144    31.3    21.9    143
 EVENING STAR             9200   40.5    24.7    164    42.4    28.9    147
 MARQUETTE                8760   15.1      -M       *   14.2      -M       *
 SYLVAN ROAD              7120   11.1     9.5    117    22.9    17.7    129
 YOUNTS PEAK              8350     -M    15.2       *     -M    16.7       *
                                                -----                  -----
                Basin Index (%)                  148                    141


POWDER RIVER

 BEAR TRAP MEADOW         8200   10.3     2.9    355    12.6     9.5    133
 CLOUD PEAK RESERVOIR     9860   22.8    15.9    143    20.7    15.0    138
 GRAVE SPRINGS            8550   13.3     9.5    140    14.0    11.8    119
 HANSEN SAWMILL           8360   10.1     4.6    220    13.8     9.7    142
 MIDDLE POWDER            7760   19.3    12.4    156    15.8    12.9    122
 POWDER RIVER PASS        9480   15.8    10.2    155    18.1    13.8    131
 SOLDIER PARK             8720   13.6      -M       *   13.5      -M       *
                                                -----                  -----
                Basin Index (%)                  165                    131


TONGUE RIVER

 BIG GOOSE                7990   13.7     9.2    149    17.0    12.8    133
 BONE SPRINGS DIV         9350   23.8    16.1    148    18.8    16.8    112
 BURGESS JUNCTION         7880   17.7    12.6    140    17.9    13.6    132
 DOME LAKE                8880   17.5    11.8    148    17.2    15.0    115
 LITTLE GOOSE             8870   15.8      -M       *   19.3      -M       *
 SUCKER CREEK             8880   19.1    12.7    150    21.7    15.9    136
 TIE CREEK                6870    8.6     4.2    205    16.8    13.0    129
                                                -----                  -----
                Basin Index (%)                  151                    126


BELLE FOURCHE

 COLE CANYON              5910    6.4     1.8    356    14.7    10.5    140
                                                -----                  -----
                Basin Index (%)                  356                    140


CHEYENNE RIVER BASIN

 BLIND PARK               6890    5.8     4.0    145    17.3    13.2    131
 NORTH RAPID CREEK        6130    5.5     4.0    138    16.1    11.2    144
                                                -----                  -----
                Basin Index (%)                  141                    137


UPPER N. PLATTE

 ARAPAHO RIDGE           10960   28.2    21.3    132    29.4    24.4    120
 BLACKHALL MTN            9820   39.3      -M       *     -M      -M       *
 COLUMBINE                9160   34.1    20.6    166      -M    27.0       *
 DIVIDE PEAK              8880   18.9    18.6    102    24.8    22.9    108
 JOE WRIGHT              10120   25.4    22.4    113    34.0    27.9    122
 LAPRELE CREEK            8375    7.9     7.8    101    12.5    13.8     91
 MED BOW                 10500     -M      -M       *   42.1      -M       *
 NORTH FRENCH CREEK      10130   38.4    32.0    120    37.0    28.7    129
 NEVER SUMMER            10280   27.1    20.7    131    21.7      -M       *
 OLD BATTLE              10000   35.8    32.9    109    39.1    37.2    105
 RAWAH                    9020   11.0     8.3    133    18.8    15.6    121
 SAGE CREEK BASIN         7850    8.4     5.4    156    13.6    15.3     89
 SAND LAKE               10050   36.0    30.6    118    34.8    27.0    129
 SOUTH BRUSH CREEK        8440    9.0     9.7     93    16.3    16.6     98
 TOWER                   10500   53.9    48.2    112      -M    42.3       *
 WEBBER SPRINGS           9250   28.1    21.8    129    30.3    28.5    106
 WILLOW CREEK PASS        9540   16.7    13.3    126    16.6    14.5    114
 ZIRKEL                   9340   40.8    22.6    181      -M    29.8       *
                                                -----                  -----
                Basin Index (%)                  125                    113


SWEETWATER

 DEER PARK                9700     -M    16.3       *   20.3    21.7     94
 LARSEN CREEK             9000   10.6    10.2    104    16.2      -M       *
 SOUTH PASS               9040   15.1    15.4     98    15.9    18.7     85
                                                -----                  -----
                Basin Index (%)                  100                     90


LOWER N. PLATTE

 CASPER MTN.              7900   18.3    14.4    127    17.2    16.7    103
 LAPRELE CREEK            8375    7.9     7.8    101    12.5    13.8     91
 RENO HILL                8400   19.2    14.0    137    22.6    17.3    131
 WINDY PEAK               7900    8.0     6.5    123    13.4    11.7    115
                                                -----                  -----
                Basin Index (%)                  125                    110


LARAMIE RIVER

 BROOKLYN LAKE           10240   32.0    22.3    143    32.1    22.9    140
 CINNABAR PARK            9574   26.5    20.0    132    31.2    25.4    123
 CROW CREEK               8330    4.5      .3   1500*   12.9    12.0    108
 DEADMAN HILL            10220   26.3    17.2    153    25.2    19.0    133
 RAWAH                    9020   11.0     8.3    133    18.8    15.6    121
 ROACH                    9700   22.0    16.6    133    26.3    20.7    127
                                                -----                  -----
                Basin Index (%)                  144                    127


S. PLATTE

 BLACK MOUNTAIN           8920   11.9      -M       *     -M      -M       *
 CROW CREEK               8330    4.5      .3   1500*   12.9    12.0    108
 DEADMAN HILL            10220   26.3    17.2    153    25.2    19.0    133
                                                -----                  -----
                Basin Index (%)                  176*                   123


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    5.7     3.9    146    18.8    16.1    117
 DIVIDE PEAK              8880   18.9    18.6    102    24.8    22.9    108
 ELK RIVER                8700   19.0    15.2    125    23.9    21.4    112
 LITTLE SNAKE RIVER       8915   29.5    24.1    122    36.4    31.2    117
 OLD BATTLE              10000   35.8    32.9    109    39.1    37.2    105
 SAGE CREEK BASIN         7850    8.4     5.4    156    13.6    15.3     89
 SANDSTONE RS             8150    8.6    10.0     86    19.2    19.6     98
 WHISKEY PARK             8950   40.3    25.8    156    41.9    29.7    141
                                                -----                  -----
                Basin Index (%)                  122                    113


UPPER GREEN RIVER

 BIG SANDY OPENING        9080   15.5    12.6    123    15.3    14.2    108
 BLIND BULL SUM           8650   37.4    24.1    155    23.7    20.3    117
 EAST RIM DIVIDE          7930   14.3     9.4    152    16.0    12.3    130
 ELKHART PARK G.S.        9400   18.2    11.9    153    17.3    14.1    123
 GROS VENTRE SUMMIT       8750   14.4    13.2    109    15.0    13.8    109
 GUNSIGHT PASS            9820   21.3    13.7    155    19.4    15.0    129
 KENDALL R.S.             7740   19.7     8.1    243    23.3    14.8    157
 LOOMIS PARK              8240   24.1    12.8    188    25.3    18.0    141
 NEW FORK LAKE            8340   13.7     8.6    159    13.6    11.4    119
 POCKET CREEK             9360   12.1      -M       *   12.9      -M       *
 SNIDER BASIN             8060   16.3    10.6    154    19.9    14.8    134
 SPRING CREEK DIVIDE      9000   37.4    23.5    159    33.5    24.9    135
 TRIPLE PEAK              8500   34.9    19.2    182    37.8    26.5    143
                                                -----                  -----
                Basin Index (%)                  159                    130


LOWER GREEN RIVER

 BLACKS FORK JCT          8870    5.4      -M       *   14.1      -M       *
 BUCK PASTURE             9700   12.9      -M       *   17.9      -M       *
 EF BLACKS FORK GS        9360    8.0      -M       *   10.7      -M       *
 HAMS FORK                7840   11.7     6.4    183    14.5    12.1    120
 HEWINTA                  9519    7.8     7.9     99    15.8    15.0    105
 HICKERSON PARK           9145    2.9     5.3     55     9.4    11.1     85
 HOLE-IN-ROCK             9150    3.3     5.7     58    10.4    10.6     98
 INDIAN CREEK             9425   32.2    23.4    138    27.5    23.7    116
 KELLEY R.S.              8180   17.0    12.4    137    21.1    19.0    111
 SPIRIT LK               10235    9.4      -M       *   14.8      -M       *
 STEEL CREEK PARK        10200   20.9    16.2    129    17.3    17.8     97
                                                -----                  -----
                Basin Index (%)                  124                    106


UPPER BEAR RIVER

 BEAR RIVER RS            8777    3.2      -M       *   13.3      -M       *
 BUG LAKE                 7950   21.2    16.9    125    21.2    20.5    103
 BURTS MILLER RANCH       8000     .0      -M       *    7.2      -M       *
 CHALK CREEK #1           8993   21.6    24.5     88    24.3    26.9     90
 HAYDEN FORK              9212   11.1    11.4     97    22.3    22.5     99
 KELLEY R.S.              8180   17.0    12.4    137    21.1    19.0    111
 LILY LAKE                9156   11.0    10.4    106    16.0    18.4     87
 MONTE CRISTO             8960   23.9    27.4     87    26.4    27.5     96
 SALT RIVER SUMMIT        7760   14.8     9.4    157    19.5    17.4    112
                                                -----                  -----
                Basin Index (%)                  107                     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.