Menu

Ireland's sailing, boating & maritime magazine

In association with ISA Logo Irish Sailing

Marine Clothing

#Weather - The work of the Marine Institute's Irish Weather Buoy Network will feature on RTE One's Weather Live this evening (Friday 17 November).

The TV programme has filmed the redeployment of the M5 weather buoy, which broke free during Storm Ophelia. The show will also feature an interview with the Marine Institute's Dr Guy Westbrook.

A weather buoy has been transported to the Botanic Gardens in Dublin, where Weather Live broadcasts live, so those tuning in can see what one looks like.

The Irish Weather Buoy Network delivers data every hour that is then fed into a global information network which includes Met Éireann, the Irish Meterological Service. This data is then used to inform forecasts as well as long-term information gathering.

Located off the South East coast, the M5 weather buoy captured two records during Ophelia: a record individual wave (Hmax) of 17.81m and a record significant wave height (Hs) of 12.97m.

During the storm, the raging seas caused the M5 mooring to break and the buoy needed to be recovered to shore when the seas had calmed.

Due to the relative importance to forecasters of the M5 weather observing location, it was decided to deploy the M4 target system that had been on test in Killybegs at M5.

This buoy was disassembled and transported by road to Cobh dockyard where it was loaded onto the ILV Granuaile and prepared for subsequent deployment.

Marine Institute staff embarked the vessel on 1 November and deployment of the buoy took place the next day in exceptionally calm conditions.

Weather Live is a three-day television event on RTÉ One that focuses on the fascinating world of weather. It’s presented by Kathryn Thomas and features meteorologists including Evelyn Cusack, Gerald Fleming and Gerry Murphy, and coincides with events for Science Week 2017, as previously reported on Afloat.ie.

The third and final broadcast of the series goes out live this evening Friday 17 November at 7pm on RTE One.

Published in Weather

Record wave heights were captured by the Irish Weather Buoy Network during Hurricane Ophelia on Monday 16th October, causing one of the five weather buoys to break it 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* and a record significant wave height (Hs) of 12.97m **.

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 yesterday by the MV Puffin of Fastnet Shipping (Waterford) and brought ashore last night.

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

baltimore beaconWaves lash the Baltimore beacon in West Cork during Storm Ophelia. Photo: Youen Jacob
Earlier in the day, at 12.00, the M3 buoy, off the South West coast measured an individual wave height of 13.59m, although this was not a record wave for this buoy.

In addition to measuring the waves, the weather buoy network, which is managed by the Marine Institute provides further vital atmospheric (including wind speed) and oceanographic information to support both maritime safety and, importantly in storm events such as Ophelia, help to validate the weather forecast models run by Met Éireann providing guidance to the national emergency planning efforts.

The Irish Weather Buoy Network is designed to improve weather forecasts and safety at sea around Ireland. The buoy network also provides operational ocean models, shipping bulletins, gale and swell warnings as well as data for general public information and research. The network is managed by the Marine Institute in collaboration with Met Éireann, the UK Met Office and the Irish Department of Transport, Tourism and Sport (DTTAS). Real time data from the network can be found here.

Published in Marine Science

Featured Sailing School

INSS sidebutton

Featured Clubs

DBSC
Howth Yacht Club
National Yacht Club
Royal Cork Yacht Club
Royal Irish Yacht club

Featured Associations

ISA sidebutton
ICRA
isora sidebutton

Featured Events

corkweek sidebutton
tokyo sidebutton
roundireland sidebutton
wave regatta

Featured Chandleries

chmarine sidebutton
viking sidebutton

Featured Sailmakers

northsails sidebutton
uksails sidebutton

Featured Marinas

dlmarina sidebutton

Featured Blogs

W M Nixon - Sailing on Saturday
podcast sidebutton
BSB sidebutton
sellingboat sidebutton

Please show your support for Afloat by donating