An easterly, very strong and mostly variable flow prevails over the North-East of the basin. Over the South and the West, a northwesterly gale is raging at sea.
For Portstewart :
No gale warning.
The reliability of the situation is very good.
Cloud and long sunny periods. Light showers. In the evening, changeable skies clearing completely.
Chance of light rain. W force 2 in the middle of the day turning SSW in the evening. Gusts reaching 10 knots in the middle of the day. Smooth to slight sea. Low, fairly long swell from NW. Good visibility becoming reduced by mist in the evening.