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Discussed in the following Daily reports:

Content by Label
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cqllabel = "case1007_windstorm_eowyn"


1. Overview

Storm Éowyn brought on 24 January extreme winds to Ireland and western parts of the UK. Wind gusts peaked at 51 m/s on the western Irish coast in Mace Head where mean wind of 38 m/s between 04:00 and 05:00 UTC and an hour earlier, a mean wind of 38 m/s was recorded (the station stopped reporting after 05UTC). Inland Connaught Airport has recoded a maximum wind gust of 43 m/s while other stations in Ireland reported 35 m/s. 


https://www.irishtimes.com/ireland/2025/01/23/how-will-storm-eowyn-impact-the-west-of-ireland-what-to-expect-from-met-eireanns-danger-to-life-warning/

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https://www.severe-weather.eu/global-weather/storm-eowyn-windstorm-ireland-bomb-cyclone-uk-north-atlantic-europe-mk/

2. Analyses and Observations

2.1 Event Definition

Wind gusts:  24-hour maximum wind gusts on 24 January for a 0.25x0.25 box around Mace Head, Ireland (53.3N, 9.9W).

2.2 Analyses

The plots below show analyses of MSLP and 6 hour rainfall from 22 January 00UTC to 25 January 00UTC, every 12th hour.

2.3 Observations

Water-vapour satellite images from Meteosat, every 3rd hour.

Sounding 24 January 00UTC from Valentia.


2.4 Climatological perspective


3. Forecasts

3.1 Data assimilation and observation usage

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Note that we currently have problems to decode the wind gust observations from Ireland. The maximum on Mace Head (black box) was 51 m/s, corresponding to grey in the colour range.


Control forecast (IFS 9km)

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DestinE (AIFS 4.4km)

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AIFS deterministic

Wind gusts not available for AIFS.

AIFS ensemble

Wind gusts not available for AIFS.

3.3 Ensemble distribution

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