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NOUS46 KSEW 040430
PNSSEW

Washington Precipitation Summary
National Weather Service Seattle WA
930 PM PST Wed Mar 3 2021

February saw near to above normal precipitation for nearly all of
Washington state.  The lone exception was the Okanogan region in
Eastern Washington which saw below normal precipitation.  For the
Water Year, nearly all of Washington is still near to above normal
with the exception being the Central Basin in Eastern Washington
which is below normal.

For Western Washington, the monthly percentage of normal for
precipitation ranged from 103 percent in the Olympics to 205 percent
in the Northwest Interior.  The greatest amount of precipitation at
the climate stations for the mountains, coast and interior lowlands
was 21.75 inches at Stampede Pass on the western slopes of the
Cascades, 11.54 at Quillayute, and 10.13 inches at Elma in the
Southwest Interior.

For Eastern Washington, the percentage of normal for precipitation
ranged from 37 percent in the Okanogan region to 152 percent on the
eastern slopes of the Cascades.  The greatest amount of
precipitation at the climate stations for the mountains and lowlands
was 6.62 inches at Stehekin on the eastern slopes of the Cascades,
and 2.39 at Republic in the Northeast region.

The outlook for March and beyond for Washington state, for the next
two weeks the outlook is for above normal precipitation.  The
monthly outlook for March calls for equal chance of above, below and
near normal precipitation for the state.  The three month outlook
for March through May calls for above normal precipitation.

The table below gives precipitation figures as a percent of normal
for regions of Washington.  The current water year began 1 October
2020 and ends 30 September 2021.

                        February   Water year      Past 3       Past 12
                          2021       to date       months        months
Western Washington
  Coast                   116          112          125           102
  Olympics                103           99          108            95
  Northwest Interior      205          128          150           114
  Puget Sound Lowlands    130          114          128           110
  Southwest Interior      134          103          111            99
  West Foothills Casca    161          113          123           106
  Cascades West           173          116          119           107

Eastern Washington
  East Slopes Cascades    152          118          117           100
  Okanogan                 37           99          100            89
  Central Basin            97           82           78            78
  Northeast               120          118          127           105
  Palouse and Blue Mtn    105          104          101            97

The table below expresses precipitation in inches and as a percent of
normal for a variety of locations around the state.  Occasionally
missing data at a site are estimated using observed data from
surrounding stations.

                   February           Water year       Past 12 months
                Inches    Pct       Inches    Pct       Inches    Pct

Quillayute       11.54    111        68.84    108        98.25     99
Hoquiam           8.75    121        52.87    117        70.96    105
Bellingham*       5.96    205        27.14    129        41.98    119
Seattle           4.68    134        28.24    115        41.47    111
Olympia           7.84    149        40.49    120        54.23    108
Longview          8.00    163        33.39    111        49.22    103

Concrete         12.87    197        55.09    121        79.84    113
Snoqualmie Fall   7.51    139        40.18    104        61.84    100
Randle*           9.77    161        41.56    114        61.19    107
Diablo Dam       12.44    170        56.99    107        77.31    100
Stampede Pass    21.75    287        75.91    142       101.71    125
Paradise*        21.97    173        90.49    115       123.09    104

Winthrop          1.08     81        11.93    133        14.50     98
Stehekin          6.62    173        36.91    134        43.70    121
Leavenworth*      4.01    152        24.44    134        28.75    115
Mount Adams*      7.83    152        36.40    111        42.31     92
Wenatchee         0.91     91         5.52     96         7.28     80
Yakima            0.94    121         4.39     87         5.97     72

Coulee Dam        0.26     27         6.20    114        10.64     99
Lind              0.65     79         4.63     85         9.60     98
Republic          2.39    206        10.60    140        20.96    124
Spokane           0.84     63         9.34    105        14.96     90
Pullman           2.38     83        12.09    102        19.78     97
Dayton            2.49    146        10.05     97        16.51     87

* = Estimated

$$
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