· ·

Ophelia created biggest waves ever recorded off Irish coast

ophelia-created-biggest-waves-ever-recorded-off-irish-coast

The M5 buoy off the southeast coast of Ireland recorded one individual wave reached a startling height of 17.81 m (58.4 feet) on Monday, October 16, 2017, the Irish Weather Buoy Network (IWBN) confirms. This is now the biggest individual wave ever recorded off the Irish coast. The same buoy also measured a record significant wave height (Hs) of 12.97 m (42.55 feet).

Record wave heights were captured by the Irish Weather Buoy Network during Ex-hurricane "Ophelia" on Monday, October 16, causing one of the five weather buoys to break its moorings.

The highest wave was recorded off the Irish coastline at 16.00 on Monday when the M5 weather buoy off the South East coast, measured a record individual wave (Hmax) of 17.81m (58.43 feet) and a record significant wave height (Hs) of 12.97 m (42.55 feet).

The M5 weather buoy subsequently broke away from its mooring and the Marine Institute coordinated the retrieval process as a matter of urgency. The M5 was recovered October 17 by the MV Puffin of Fastnet Shipping (Waterford) and brought ashore, IWBN said.

As Ophelia moved northwards, the M2 buoy to the east of Dublin also experienced a record significant wave height of 6.64 m (21.78 feet) measured at 18.00 on Monday, October 16.

Buoys off Ireland

IWBN buoys. Credit: IWBN

Earlier in the day, at 12.00 local time, the M3 buoy, off the South West coast measured an individual wave height of 13.59 m (44.58 feet), although this was not a record wave for this buoy.

Heavy seas on board an Italian tanker near Cork Harbour, Ireland on Monday, October 16, 2017 under the effects of Ex-hurricane "Ophelia." Credit: Cataldo Gianluca

The world record for significant wave height is 19 m (62.33), confirmed December 2016 by the WMO.

The wave was recorded by an automated buoy at 06:00 UTC on February 4, 2013 in the North Atlantic ocean between Iceland and the United Kingdom (approximately 59° N, 11° W). It followed the passage of a very strong cold front, which produced winds of up to 43.8 knots (81.1 km/h / 50.4 mph) over the area.

The previous record of 18.275 meters (59.96 feet) was measured on December 8, 2007, also in the North Atlantic.

Featured image: Heavy seas on board an Italian tanker near Cork Harbour, Ireland on Monday, October 16, 2017 under the effects of Ex-hurricane "Ophelia." Credit: Cataldo Gianluca

If you value what we do here, create your ad-free account and support our journalism.

Share:

Related articles



Your support makes a difference

Dear valued reader,

We hope that our website has been a valuable resource for you.

The reality is that it takes a lot of time, effort, and resources to maintain and grow this website. We rely on the support of readers like you to keep providing high-quality content.

If you have found our website to be helpful, please consider making a contribution to help us continue to bring you the information you need. Your support means the world to us and helps us to keep doing what we love.

Support us by choosing your support level – Silver, Gold or Platinum. Other support options include Patreon pledges and sending us a one-off payment using PayPal.

Thank you for your consideration. Your support is greatly appreciated.

Sincerely,
Teo Blašković

$5 /month

  • Ad-free account
  • Clean user interface and fast browsing
  • Direct communication with us via chat and email
  • Suggest new features, content and applications
  • Early access to new apps and features

$50 /year

$10 /month

  • Ad-free account
  • Clean user interface and fast browsing
  • Direct communication with us via chat and email
  • Suggest new features, content and applications
  • Early access to new apps and features

$100 /year

$25 /month

  • Ad-free account
  • Clean user interface and fast browsing
  • Direct communication with us via chat and email
  • Suggest new features, content and applications
  • Early access to new apps and features

$200 /year

You can also support us on Patreon

support us on patreon

or by sending us a one-off payment using PayPal:


Commenting rules and guidelines

We value the thoughts and opinions of our readers and welcome healthy discussions on our website. In order to maintain a respectful and positive community, we ask that all commenters follow these rules:

  • Treat others with kindness and respect.
  • Stay on topic and contribute to the conversation in a meaningful way.
  • Do not use abusive or hateful language.
  • Do not spam or promote unrelated products or services.
  • Do not post any personal information or content that is illegal, obscene, or otherwise inappropriate.

We reserve the right to remove any comments that violate these rules. By commenting on our website, you agree to abide by these guidelines. Thank you for helping to create a positive and welcoming environment for all.

Leave a reply

Your email address will not be published. Required fields are marked *