For The Chasms :
Warning strong breeze.
The reliability of the situation is very good.
Very cloudy skies with short clear spells. Light showers all day. In the evening, good clear periods but lots of cloud, too.
No precipitation. W force 5 turning NW force 6 in the middle of the day then NNW force 3. Gusts reaching 30 knots in the middle of the day. Slight sea. Low, fairly long swell from SW. Good visibility becoming excellent in the middle of the day then good.