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CoCoRaHS

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 2:53pm, 20-Apr-2014
Temperature: 55.6°F
Humidity: 44%
Wind: 3.0 mph from NNW


    UW Civil Engineering
University of Wyoming - New Thinking


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: APRIL 20 , 2014
------------------------------------------------------------------------------
BASIN                    ELEV.  SNOW WATER EQUIVALENT    TOTAL PRECIPITATION
 Data Site Name          (Ft)                      %                      %
                                Current  Median  Median  Current  Average  Avg
------------------------------------------------------------------------------

WYOMING


SNAKE RIVER  

 BASE CAMP                7030   20.8    11.9    175    27.3    21.7    126
 BLACK BEAR               8170   43.4    36.9    118    41.8    39.8    105
 BLIND BULL SUM           8650   37.6    24.0    157    23.7    20.2    117
 COTTONWOOD CREEK         7670   28.8    18.6    155    35.2    25.8    136
 EAST RIM DIVIDE          7930   15.3     9.5    161    16.0    12.2    131
 GRAND TARGHEE            9260   52.1    42.0    124      -M    32.6       *
 GRANITE CREEK            6770   21.7    10.8    201    24.7    20.3    122
 GRASSY LAKE              7265   41.4    31.3    132    41.6    37.3    112
 GROS VENTRE SUMMIT       8750   14.4    13.2    109    15.1    13.7    110
 GUNSIGHT PASS            9820   21.3    13.6    157    19.5    14.9    131
 LEWIS LAKE DIVIDE        7850   41.5    30.4    137    41.8    36.8    114
 PHILLIPS BENCH           8200   34.3    25.6    134    35.3    29.2    121
 SALT RIVER SUMMIT        7760   15.5     9.7    160    19.5    17.4    112
 SNAKE RIVER STATION      6920   18.3    11.3    162    27.0    23.5    115
 SPRING CREEK DIVIDE      9000   36.9    23.5    157    33.5    24.7    136
 THUMB DIVIDE             7980   21.1    14.5    146    20.3    19.6    104
 TOGWOTEE PASS            9580   33.6    23.8    141    34.2    25.7    133
 TWO OCEAN PLATEAU        9240   41.1    28.1    146    35.1    28.5    123
 WILLOW CREEK             8380   41.5    26.8    155    42.4    35.3    120
 YOUNTS PEAK              8350     -M    15.1       *     -M    16.6       *
                                                -----                  -----
                Basin Index (%)                  143                    120


MADISON-GALLATIN

 BLACK BEAR               8170   43.4    36.9    118    41.8    39.8    105
 CANYON                   7870   15.8    12.2    130    17.8    17.0    105
 MADISON PLATEAU          7750   25.6    22.9    112    26.3    27.5     96
 WEST YELLOWSTONE         6700    9.9     7.4    134    17.0    15.1    113
 WHISKEY CREEK            6800   17.6    15.3    115    22.3    21.2    105
                                                -----                  -----
                Basin Index (%)                  119                    104


YELLOWSTONE

 BEARTOOTH LAKE           9360   33.2    23.4    142    31.3    20.8    150
 BURNT MTN                5880    9.3      .0       *   21.3    14.2    150
 CANYON                   7870   15.8    12.2    130    17.8    17.0    105
 COLE CREEK               7850   25.1    16.3    154    18.3    14.5    126
 EVENING STAR             9200   40.9    24.8    165    42.2    28.7    147
 FISHER CREEK             9100   45.5    32.4    140    41.4    33.3    124
 NORTHEAST ENTRANCE       7350   14.4     6.7    215    16.6    13.0    128
 PARKER PEAK              9400   34.7    20.9    166    30.8    18.7    165
 SYLVAN LAKE              8420   24.3    20.4    119    30.5    23.6    129
 THUMB DIVIDE             7980   21.1    14.5    146    20.3    19.6    104
 TWO OCEAN PLATEAU        9240   41.1    28.1    146    35.1    28.5    123
 WHITE MILL               8700   34.5    23.7    146    30.5    24.9    122
 WOLVERINE                7650   15.5     7.2    215    18.2    12.8    142
                                                -----                  -----
                Basin Index (%)                  154                    131


WIND RIVER

 BURROUGHS CREEK          8750     -M    13.1       *     -M    16.8       *
 CASTLE CREEK             8400    9.0      -M       *   13.0      -M       *
 COLD SPRINGS             9630    8.8     4.6    191    13.6    10.9    125
 DEER PARK                9700     -M    16.3       *   20.3    21.5     94
 HOBBS PARK              10100   16.5    14.8    111    14.9    14.8    101
 KIRWIN                   9550   20.1    10.0    201    19.2    12.4    155
 LITTLE WARM              9370   14.6    10.1    145    17.8    13.9    128
 OWL CREEK                8975    6.5     4.0    162     8.5     6.9    123
 SOUTH PASS               9040   15.4    15.5     99    15.9    18.6     85
 ST. LAWRENCE ALT         8620    1.9     5.3     36     9.2     9.9     93
 TOGWOTEE PASS            9580   33.6    23.8    141    34.2    25.7    133
 TOWNSEND CREEK           8700    7.7     9.4     82    10.3    13.3     77
                                                -----                  -----
                Basin Index (%)                  128                    111


BIGHORN BASIN

 BALD MTN.                9380   28.2    19.8    142    22.2    18.2    122
 BEAR TRAP MEADOW         8200   10.7     3.2    334    12.5     9.4    133
 BONE SPRINGS DIV         9350   24.0    16.1    149    18.9    16.7    113
 GRAVE SPRINGS            8550   13.5     9.6    141    14.0    11.7    120
 KIRWIN                   9550   20.1    10.0    201    19.2    12.4    155
 MARQUETTE                8760   15.4      -M       *   14.4      -M       *
 MIDDLE POWDER            7760   19.4    12.5    155    15.9    12.8    124
 OWL CREEK                8975    6.5     4.0    162     8.5     6.9    123
 POWDER RIVER PASS        9480   16.2    10.2    159    18.0    13.7    131
 SHELL CREEK              9580   21.2    15.4    138    18.3    14.8    124
 TIMBER CREEK             7950    6.4     4.8    133    10.4     8.4    124
                                                -----                  -----
                Basin Index (%)                  157                    126


SHOSHONE RIVER

 BLACKWATER               9780   34.4    23.8    145    31.3    21.8    144
 EVENING STAR             9200   40.9    24.8    165    42.2    28.7    147
 MARQUETTE                8760   15.4      -M       *   14.4      -M       *
 SYLVAN ROAD              7120   12.3     9.8    126    22.9    17.6    130
 YOUNTS PEAK              8350     -M    15.1       *     -M    16.6       *
                                                -----                  -----
                Basin Index (%)                  150                    142


POWDER RIVER

 BEAR TRAP MEADOW         8200   10.7     3.2    334    12.5     9.4    133
 CLOUD PEAK RESERVOIR     9860   22.8    15.8    144    20.8    14.9    140
 GRAVE SPRINGS            8550   13.5     9.6    141    14.0    11.7    120
 HANSEN SAWMILL           8360   10.4     4.8    217    13.9     9.6    145
 MIDDLE POWDER            7760   19.4    12.5    155    15.9    12.8    124
 POWDER RIVER PASS        9480   16.2    10.2    159    18.0    13.7    131
 SOLDIER PARK             8720   14.0      -M       *   13.5      -M       *
                                                -----                  -----
                Basin Index (%)                  166                    132


TONGUE RIVER

 BIG GOOSE                7990   13.9     9.3    149    17.0    12.6    135
 BONE SPRINGS DIV         9350   24.0    16.1    149    18.9    16.7    113
 BURGESS JUNCTION         7880   17.9    12.5    143    17.9    13.4    134
 DOME LAKE                8880   17.7    11.8    150    17.2    14.9    115
 LITTLE GOOSE             8870   15.9      -M       *   19.3      -M       *
 SUCKER CREEK             8880   19.2    12.7    151    21.7    15.8    137
 TIE CREEK                6870    9.1     4.4    207    16.9    12.8    132
                                                -----                  -----
                Basin Index (%)                  152                    127


BELLE FOURCHE

 COLE CANYON              5910    6.8     2.0    340    14.7    10.4    141
                                                -----                  -----
                Basin Index (%)                  340                    141


CHEYENNE RIVER BASIN

 BLIND PARK               6890    6.5     4.1    159    17.3    13.1    132
 NORTH RAPID CREEK        6130    6.1     4.2    145    16.1    11.0    146
                                                -----                  -----
                Basin Index (%)                  152                    139


UPPER N. PLATTE

 ARAPAHO RIDGE           10960   29.4    21.4    137    29.4    24.3    121
 BLACKHALL MTN            9820   39.4      -M       *     -M      -M       *
 COLUMBINE                9160   35.6    20.6    173      -M    26.9       *
 DIVIDE PEAK              8880   19.5    18.9    103    24.8    22.8    109
 JOE WRIGHT              10120   25.5    22.2    115    34.0    27.8    122
 LAPRELE CREEK            8375    8.5     8.0    106    12.5    13.7     91
 MED BOW                 10500     -M      -M       *   41.6      -M       *
 NORTH FRENCH CREEK      10130   38.6    32.0    121    36.9    28.6    129
 NEVER SUMMER            10280   27.1    20.7    131    21.6      -M       *
 OLD BATTLE              10000   35.9    32.7    110    39.1    37.0    106
 RAWAH                    9020   11.7     8.4    139    18.8    15.5    121
 SAGE CREEK BASIN         7850    9.2     6.0    153    13.6    15.3     89
 SAND LAKE               10050   36.0    30.5    118    34.8    26.8    130
 SOUTH BRUSH CREEK        8440    9.5     9.8     97    16.3    16.5     99
 TOWER                   10500   54.1    48.0    113      -M    42.0       *
 WEBBER SPRINGS           9250   26.4    22.0    120    30.3    28.4    107
 WILLOW CREEK PASS        9540   16.8    13.1    128    16.6    14.4    115
 ZIRKEL                   9340   41.4    22.7    182      -M    29.7       *
                                                -----                  -----
                Basin Index (%)                  126                    113


SWEETWATER

 DEER PARK                9700     -M    16.3       *   20.3    21.5     94
 LARSEN CREEK             9000   11.2    10.3    109    16.3      -M       *
 SOUTH PASS               9040   15.4    15.5     99    15.9    18.6     85
                                                -----                  -----
                Basin Index (%)                  103                     90


LOWER N. PLATTE

 CASPER MTN.              7900   18.8    14.4    131    17.4    16.6    105
 LAPRELE CREEK            8375    8.5     8.0    106    12.5    13.7     91
 RENO HILL                8400   19.6    13.9    141    22.6    17.2    131
 WINDY PEAK               7900    8.5     6.6    129    13.4    11.6    116
                                                -----                  -----
                Basin Index (%)                  129                    112


LARAMIE RIVER

 BROOKLYN LAKE           10240   32.3    22.2    145    32.0    22.8    140
 CINNABAR PARK            9574   26.7    20.1    133    31.2    25.3    123
 CROW CREEK               8330    5.5      .7    786*   13.0    12.0    108
 DEADMAN HILL            10220   26.0    17.0    153    25.2    18.9    133
 RAWAH                    9020   11.7     8.4    139    18.8    15.5    121
 ROACH                    9700   22.5    16.6    136    26.2    20.6    127
                                                -----                  -----
                Basin Index (%)                  147                    127


S. PLATTE

 BLACK MOUNTAIN           8920   12.6      -M       *     -M      -M       *
 CROW CREEK               8330    5.5      .7    786*   13.0    12.0    108
 DEADMAN HILL            10220   26.0    17.0    153    25.2    18.9    133
                                                -----                  -----
                Basin Index (%)                  178*                   124


LITTLE SNAKE RIVER

 BATTLE MOUNTAIN          7440    6.2     4.3    144    18.8    16.1    117
 DIVIDE PEAK              8880   19.5    18.9    103    24.8    22.8    109
 ELK RIVER                8700   19.5    15.5    126    23.9    21.2    113
 LITTLE SNAKE RIVER       8915   29.9    24.3    123    36.4    31.2    117
 OLD BATTLE              10000   35.9    32.7    110    39.1    37.0    106
 SAGE CREEK BASIN         7850    9.2     6.0    153    13.6    15.3     89
 SANDSTONE RS             8150    9.2    10.1     91    19.2    19.5     98
 WHISKEY PARK             8950   40.6    25.9    157    41.9    29.6    142
                                                -----                  -----
                Basin Index (%)                  123                    113


UPPER GREEN RIVER

 BIG SANDY OPENING        9080   15.4    12.7    121    15.3    14.1    109
 BLIND BULL SUM           8650   37.6    24.0    157    23.7    20.2    117
 EAST RIM DIVIDE          7930   15.3     9.5    161    16.0    12.2    131
 ELKHART PARK G.S.        9400   18.2    11.9    153    17.4    14.0    124
 GROS VENTRE SUMMIT       8750   14.4    13.2    109    15.1    13.7    110
 GUNSIGHT PASS            9820   21.3    13.6    157    19.5    14.9    131
 KENDALL R.S.             7740   20.2     8.4    240    23.3    14.8    157
 LOOMIS PARK              8240   24.6    13.0    189    25.3    18.0    141
 NEW FORK LAKE            8340   14.3     8.8    162    13.6    11.3    120
 POCKET CREEK             9360   12.1      -M       *   12.9      -M       *
 SNIDER BASIN             8060   16.6    10.7    155    19.9    14.8    134
 SPRING CREEK DIVIDE      9000   36.9    23.5    157    33.5    24.7    136
 TRIPLE PEAK              8500   35.4    19.3    183    37.8    26.3    144
                                                -----                  -----
                Basin Index (%)                  160                    131


LOWER GREEN RIVER

 BLACKS FORK JCT          8870    6.0      -M       *   14.1      -M       *
 BUCK PASTURE             9700   13.5      -M       *   17.9      -M       *
 EF BLACKS FORK GS        9360    8.3      -M       *   10.7      -M       *
 HAMS FORK                7840   12.3     6.7    184    14.5    12.0    121
 HEWINTA                  9519    8.2     8.1    101    15.1    15.0    101
 HICKERSON PARK           9145    3.6     5.4     67     9.3    11.0     85
 HOLE-IN-ROCK             9150    3.9     5.9     66    10.4    10.5     99
 INDIAN CREEK             9425   32.7    23.3    140    27.5    23.6    117
 KELLEY R.S.              8180   17.4    12.7    137    21.2    18.9    112
 SPIRIT LK               10235    9.6      -M       *   14.8      -M       *
 STEEL CREEK PARK        10200   21.0    16.2    130    17.3    17.8     97
                                                -----                  -----
                Basin Index (%)                  127                    106


UPPER BEAR RIVER

 BEAR RIVER RS            8777    4.0      -M       *   13.3      -M       *
 BUG LAKE                 7950   21.8    17.2    127    21.2    20.4    104
 BURTS MILLER RANCH       8000     .2      -M       *    7.2      -M       *
 CHALK CREEK #1           8993   22.1    24.6     90    24.3    26.7     91
 HAYDEN FORK              9212   11.7    11.8     99    22.3    22.4    100
 KELLEY R.S.              8180   17.4    12.7    137    21.2    18.9    112
 LILY LAKE                9156   11.5    10.6    108    15.9    18.3     87
 MONTE CRISTO             8960   24.7    27.5     90    26.4    27.3     97
 SALT RIVER SUMMIT        7760   15.5     9.7    160    19.5    17.4    112
                                                -----                  -----
                Basin Index (%)                  109                    100
----------------------------------------------------------------------------

 -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.