An upper trough becomes quasi-stationary over Ukraine this week and becomes more intense next week. Ukraine weather features rain and snow showers that become mostly snow this weekend and next week as a colder regime develops. In Australia the historic heavy rains on the East Coast continue. The New South Wales coast is hardest hit this week, but heavy rains return to the Brisbane area next week.

A “perfect storm” emerged just-off Brisbane on the central East Coast of Australia yesterday. A small but intense area of upper-level difluence above an equally intense area of low-level conflue4nce created a “chimney effect” to drive a super convective storm which extended inland unloading record rainfall for Brisbane and surrounding communities.

The East Atlantic/Western Russia 15-day forecast reveals a moderate-to-strong positive phase developing during the medium-range. Supported is an evolving colder and (more) snowy pattern in the Black Sea region.

A pattern change is welcomed news for Brazil. A semi-permanent low-pressure area southeast of Brazil present much of summer was responsible for heavy rain and frequent flooding. The 15-day outlook indicates a pattern change...high-pressure over southeastern Brazil which promises a drier climate heading into early March while Argentina turns wet.