organised by :
General synopsis on Monday 20th August at 12h
General synopsis on monday 20th August at 00h :
High 1033 hPa by 44 N and 30 W.
Extended a ridge toward gulf of Biscay.
Low 1003 hPa by 57N 10W moving southeast and deepening.
Expected the 20 at 12 utc at 1000 hPa by 50N and 3E.
Expected the 21 at 00 utc at 998 hPa by 47.30N and 1.30E.
Forecast from monday 20th August at 12 utc to tuesday 21th at 12 utc:
Westerly 18/23 kt increasing 30/35 kt soon temporarily gusts 45 kt over the front, veering northwest 30/35 kt gusts 45 kt in afternoon, increasing temporarily 35/40 kt gusts 50 kt tonight, veering north and decreasing 22/27 kt gusts 35 kt at end.
Becoming rough (4 mètres) temporarily very rough tonight (5 mètres)
