For Istanbul :
No gale warning.
The reliability of the situation is very good.
Sunny becoming changeable in the afternoon. No precipitation. In the evening, skies with few clouds.
N force 4 in the morning turning NE in the evening. Gusts reaching 26 knots in the middle of the day. Rippled sea becoming smooth to slight in the middle of the day. Low, short swell from NW then from E in the middle of the day then from N. Excellent visibility.