National Weather Service issues Coastal Flood Advisory for Seattle

The high tide I referenced in last night’s “barking dog” report has been bumped up to an estimated 14.3 feet at 5:38 am on Thursday morning. This coincides with gusts that are predicted from Wind Alert to have gusts up to 50 mph.

From the Coastal Flooding Advisory, issued at 3:12 am:

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 8 AM PST
THURSDAY.

* COASTAL FLOODING...MINOR TIDAL OVERFLOW IS LIKELY AROUND THE
  TIME OF HIGH TIDE TONIGHT.

HIGH ASTRONOMICAL TIDES...AUGMENTED BY UNUSUALLY LOW ATMOSPHERIC
PRESSURE...WILL LIKELY FLOOD VERY LOW LYING COASTAL AREAS.
FLOODING IS EXPECTED TO BE MINOR AND ONLY LAST A FEW HOURS AROUND
THE TIME OF HIGH TIDE.

THE TABLE BELOW GIVES TIME AND HEIGHT OF PREDICTED TIDES...THE
PREDICTED TIDAL ANOMALY DUE TO LOW PRESSURE AND OTHER FACTORS...
AND THE SUM OF THE PREDICTED TIDE AND THE PREDICTED ANOMALY.


STATION NAME: SEATTLE
DAY     TIME         PRED      ANOMALY     PRED + ANOMALY
THU     05:38 AM     12.44     ~ 1.9               14.3

Based on these predictions, we are pulling out our pumps today just in case we flood early tomorrow morning. It may be a good idea to check on your waterfront neighbors to make sure they’re aware of the potential flooding.

There is also a Small Craft Advisory in effect through Thursday afternoon.

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