NWS issues a Coastal Flood Advisory

December 19, 2016 by Leave a Comment

The National Weather Service in Seattle has issued a coastal flooding advisory.

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A COASTAL FLOOD ADVISORY…WHICH IS IN EFFECT FROM 6 AM TO 11 AM PST THIS MORNING. *

COASTAL FLOODING…HIGH TIDES WILL BE ABOUT ONE FOOT BELOW WHAT NORMALLY CAUSES MINOR TIDAL OVERFLOW THIS MORNING. HOWEVER, A STRONG FRONTAL SYSTEM PASSING THROUGH THE AREA AROUND THE HIGH TIDE WILL PRODUCE WINDY CONDITIONS AND WAVES UP TO 5 FEET. THESE WAVES MAY OVERTOP SEAWALLS AROUND TODAYS MORNING HIGH TIDE.

* SOME AFFECTED LOCATIONS…SHORELINES OF PUGET SOUND…

* TIMING…TWO HOURS EITHER SIDE OF THIS MORNING`S HIGH TIDE THAT WILL OCCUR BETWEEN 8 AND 9 AM PST.

* TIDE INFO…HIGH TIDE FROM TACOMA NORTHWARD TO FRIDAY HARBOR IS AROUND 8 AM…. THE TIDES AT ALL LOCATIONS WILL BE ABOUT 1 FOOT BELOW WHERE MINOR TIDAL OVERFLOW NORMALLY OCCURS.

* IMPACTS…WAVES MAY OCCASIONALLY SEND SEA WATER OVER LOWER SEAWALLS AROUND THE HIGH TIDE THIS MORNING. PRECAUTIONARY/PREPAREDNESS ACTIONS… A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES WILL COMBINE TO GENERATE MINOR FLOODING OF LOW AREAS ALONG THE SHORE.

Puget Sound Marine forecast has a Gale Warning until 9:00 am this morning being reduced to a Gale Watch through Tuesday afternoon.

 TODAY  S WIND 25 TO 35 KT EARLY…EASING TO 15 TO 25 KT BY AFTERNOON.  WIND WAVES 4 TO 6 FT…SUBSIDING TO 2 TO 4 FT IN THE AFTERNOON.  RAIN IN THE MORNING…THEN ISOLATED SHOWERS IN THE AFTERNOON.

 TONIGHT  SE WIND TO 10 KT…BECOMING S 15 TO 25 KT AFTER  MIDNIGHT. WIND WAVES 2 FT OR LESS…BUILDING TO 2 TO 4 FT AFTER  MIDNIGHT. RAIN.  

TUE  SW WIND 20 TO 30 KT…RISING TO 25 TO 35 KT IN THE  AFTERNOON. WIND WAVES 4 TO 6 FT. SHOWERS IN THE MORNING…THEN  SCATTERED SHOWERS IN THE AFTERNOON.

We do have extremely high tides right now with a 12.49 estimated at 9:24 this morning. Tuesday’s high tide is 12.18 around 10:00 am.

Wind Alert shows the stronger winds tapering down following the high tide and shows winds picking up again this evening and the wee hours on Tuesday.

Filed Under: Puget Sound, Weather Tagged With:

National Weather Service issues Coastal Flood Advisory for Seattle

March 9, 2016 by Leave a Comment

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.

Filed Under: Puget Sound, Safety, Tides, Weather Tagged With: ,

Barking Dog Report: HIGH WIND WATCH AND COASTAL FLOODING WATCH

December 9, 2014 by 3 Comments

Barking-Dog-ReportI’m crossing my fingers that the current forecasts I’m reading are exaggerating the predictions for Thursday. The coastal flooding is predicted to impact local high tides, causing a 14 ft on Wednesday morning around 8 am and a 14.5 ft on Thursday morning around 9 – 10 am.  Combine this with the high wind watch with possible gusts up to 65 mph and I smell trouble!

If you live on the water along Beach Drive, you might want to make sure you have pumps ready to go and take any actions needed to prepare for potential flooding. Be sure to continue to check the forecast as they do change…hopefully for the better!

Please share this information with your Beach Drive neighbors – they may not be aware of the pending storm.

National Weather Service

...COASTAL FLOOD ADVISORY IN EFFECT FROM 4 AM TO NOON PST
WEDNESDAY...
...COASTAL FLOOD WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT FROM 4 AM TO NOON PST
WEDNESDAY. A COASTAL FLOOD WATCH HAS ALSO BEEN ISSUED. THIS
COASTAL FLOOD WATCH IS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY AFTERNOON.

* IMPACTS...MINOR TIDAL OVERFLOW IS EXPECTED TO PRODUCE MINOR
  FLOODING IN LOW LYING AREAS AROUND THE INLAND WATERS AROUND HIGH
  TIDE ON WEDNESDAY. MORE SERIOUS AND EXTENSIVE COASTAL FLOODING
  IS POSSIBLE ON THURSDAY IF A DEEP LOW THAT IS SHOWN BY MANY
  FORECAST MODELS COMES IN AROUND HIGH TIDE. THIS DEEP LOW WOULD
  PRODUCE A 1 TO 2 FOOT STORM SURGE ON TOP OF PREDICTED TIDE
  VALUES AND WOULD BE COMBINED WITH WAVES DEVELOPED BY STRONG
  WINDS.

* TIME OF HIGH TIDE...ABOUT 8 AM PST WEDNESDAY AND 9-10 AM PST
  THURSDAY.

* PREDICTED TIDE...AT SEATTLE ABOUT 14 FEET ON WEDNESDAY AND
  POSSIBLY AROUND 14.5 FEET ON THURSDAY. MINOR TIDAL OVERFLOW AT
  SEATTLE NORMALLY BEGINS AROUND 13.5 FEET AND SERIOUS COASTAL
  FLOODING TYPICALLY BEGINS AT 14.5 FEET. TIDAL ANOMALIES ARE
  EXPECTED TO BE SIMILAR AT OTHER LOCATIONS BETWEEN OLYMPIA AND
  POINT ROBERTS ALONG THE SHORES OF THE INLAND WATERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

A COASTAL FLOOD WATCH MEANS FLOODING OR BEACH EROSION WILL OCCUR
IF WEATHER CONDITIONS DEVELOP AS PREDICTED. RESIDENTS AND LOCAL
OFFICIALS SHOULD MONITOR THE SITUATION CLOSELY AND BE PREPARED TO
TAKE APPROPRIATE ACTION IF A WARNING IS ISSUED.

Seattle City Forecast:

…HIGH WIND WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY EVENING…

TONIGHT…RAIN IN THE EVENING…THEN SHOWERS AFTER MIDNIGHT. RAINFALL AMOUNTS A HALF INCH TO ONE INCH POSSIBLE. LOWS IN THE LOWER TO MID 50S. SOUTH WIND 10 TO 20 MPH. GUSTS TO 35 MPH AFTER MIDNIGHT.

WEDNESDAY…BREEZY…RAIN. RAINFALL AMOUNTS A HALF INCH TO ONE INCH POSSIBLE. HIGHS NEAR 60. SOUTH WIND 15 TO 25 MPH WITH GUSTS TO 40 MPH.

WEDNESDAY NIGHT…RAIN AT TIMES. RAINFALL AMOUNTS A TENTH TO A QUARTER OF AN INCH POSSIBLE. LOWS NEAR 50. SOUTH WIND 10 TO 15 MPH BECOMING EAST WITH GUSTS TO 25 MPH AFTER MIDNIGHT.

THURSDAY…VERY WINDY. RAIN AT TIMES. RAINFALL AMOUNTS A TENTH TO A QUARTER OF AN INCH POSSIBLE. HIGHS IN THE LOWER TO MID 50S. NORTH WIND 10 TO 20 MPH WITH GUSTS TO 30 MPH INCREASING TO SOUTH 30 TO 40 MPH WITH GUSTS TO 65 MPH IN THE AFTERNOON.

THURSDAY NIGHT…WINDY. SHOWERS LIKELY. RAINFALL AMOUNTS A TENTH TO A QUARTER OF AN INCH POSSIBLE. LOWS IN THE MID 40S. SOUTHWEST WIND 20 TO 30 MPH WITH GUSTS TO 40 MPH DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.

NWS Forecast for Thursday currently has gusts up to 70 MPH!!!

  • Thursday: Rain. High near 54. Windy, with a north northeast wind 6 to 11 mph becoming south 36 to 46 mph in the afternoon. Winds could gust as high as 70 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
  • Thursday Night: Showers likely. Mostly cloudy, with a low around 45. Windy. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

Here’s a snap shot of the pending tides – please remember this is NOT reflecting the coastal flooding which causes the tides to be higher than originally predicted.

2014-12-09_1644

UPDATE: 4:58 PM to add the Puget Sound Marine Forecast:

SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH  WEDNESDAY AFTERNOON  STORM WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY  EVENING  

 WED  S WIND 20 TO 30 KT. WIND WAVES 3 TO 5 FT. RAIN.  
WED NIGHT  S WIND 15 TO 25 KT...EASING TO 5 TO 15 KT. WIND WAVES  2 TO 4 FT...SUBSIDING TO 2 FT OR LESS AFTER MIDNIGHT. RAIN IN THE  EVENING...THEN RAIN LIKELY AFTER MIDNIGHT.  
THU  N WIND 5 TO 15 KT...BECOMING S 35 TO 45 KT. STORM FORCE  WINDS ARE POSSIBLE. WIND WAVES 2 FT OR LESS BUILDING TO 5 TO 8 FT.  
THU NIGHT  SW WIND 35 TO 45 KT EARLY...EASING TO 5 TO 15 KT.  STORM FORCE WINDS ARE POSSIBLE IN THE EVENING. WIND WAVES 6 TO 8  FT...SUBSIDING TO 2 FT OR LESS.

A “barking dog report” means that we are very closely watching the sound and preparing to possibly flood. It may or may not happen (hopefully not!!). Consider us your neighbor’s barking dog who’s barking at potential trouble. Stay safe my friends!
Filed Under: Safety, Weather Tagged With: , , , ,

National Weather Service Issues Coastal Flood Advisory through 11:00 am this morning

December 2, 2012 by Leave a Comment

Did you wake up to waves pounding your bulkhead like we did? This morning’s high tide of 11.9 happened around 7:49 a.m. Seattle area tides will only go down to about a 7.9 at 1:41 pm and then back up to a 9.1 at 6:12 tonight.  The coastal flood advisory below says to add 1.5 to 2.0 feet to the tide table prediction.

The National Weather Service has issued a coastal flood advisory for the Seattle area:

..COASTAL FLOOD ADVISORY IN EFFECT FROM 7 AM TO 11 AM PST THIS
MORNING…

THE NATIONAL WEATHER SERVICE IN SEATTLE HAS ISSUED A COASTAL
FLOOD ADVISORY…WHICH IS IN EFFECT FROM 7 AM TO 11 AM PST THIS
MORNING.

* HAZARD…MINOR FLOODING NEAR THE BEACHES FROM TIDAL OVERFLOW AT
  HIGH TIDE THIS MORNING.

* IMPACTS…LOW LYING ROADS AND OTHER AREAS NEXT TO THE BEACHES
  AND TIDELANDS MAY SEE MINOR FLOODING AT HIGH TIDE.

* TIME OF HIGH TIDE AND PREDICTIONS…11.9 FEET AROUND 750 AM AT
  SEATTLE…12.4 FEET AROUND 750 AM AT TACOMA…8.5 FEET AROUND 840
  AM AT FRIDAY HARBOR…9.8 FEET AROUND 840 AM AT CHERRY POINT.

* EXPECTED TIDAL ANOMALY…ADD 1.5 TO 2.0 FEET TO THE TIDE TABLE
  PREDICTION.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE

The Puget Sound Marine Forecast currently has 4-5 foot waves predicted most of this week:

SMALL CRAFT ADVISORY IN EFFECT THROUGH MONDAY AFTERNOON…
TODAY…S WIND 15 TO 25 KT…RISING TO 20 TO 30 KT. WIND WAVES 3 TO 5 FT. SHOWERS IN THE MORNING…THEN SHOWERS LIKELY.

TONIGHT…S WIND 15 TO 25 KT. WIND WAVES 2 TO 4 FT. SHOWERS LIKELY.

MON…S WIND 15 TO 25 KT. WIND WAVES 2 TO 4 FT. SHOWERS LIKELY.

MON NIGHT…S WIND 10 TO 20 KT…RISING TO 20 TO 30 KT. WIND WAVES 1 TO 3 FT…BUILDING TO 3 TO 5 FT.

TUE…S WIND 15 TO 25 KT. WIND WAVES 2 TO 4 FT.

TUE NIGHT…SW WIND 15 TO 25 KT. WIND WAVES 2 TO 4 FT.

WED…S WIND 15 TO 25 KT. WIND WAVES 2 TO 4 FT.

A Seattle area forecast also warns of possible coastal flooding until 11:00 a.m. today with southwest winds up to 30 mph:

…COASTAL FLOOD ADVISORY FOR MINOR TIDAL OVERFLOW IS IN EFFECT FROM 7 AM TO 11 AM PST THIS MORNING…

TODAY…WINDY. SHOWERS IN THE MORNING…THEN SHOWERS LIKELY IN THE AFTERNOON. HIGHS IN THE MID 40S TO LOWER 50S. SOUTHWEST WIND 15 TO 30 MPH.

TONIGHT…WINDY. SHOWERS LIKELY. LOWS IN THE UPPER 30S TO MID 40S. SOUTH WIND 15 TO 30 MPH.

MONDAY…BREEZY. SHOWERS LIKELY. HIGHS IN THE MID 40S TO LOWER 50S. SOUTH WIND 15 TO 25 MPH.

MONDAY NIGHT…WINDY…RAIN. LOWS IN THE LOWER TO MID 40S. SOUTH WIND 15 TO 25 MPH BECOMING SOUTHEAST 15 TO 30 MPH AFTER MIDNIGHT.

TUESDAY…WINDY. RAIN IN THE MORNING…THEN SHOWERS IN THE AFTERNOON. HIGHS IN THE LOWER TO MID 50S. SOUTH WIND 15 TO 30 MPH BECOMING SOUTHWEST 15 TO 25 MPH IN THE AFTERNOON.

Filed Under: Safety, Weather Tagged With: , , ,