Case studies

Undular bore off Mauritania

Early on 2 July an undular bore developed on the coast of Mauritania (south of Nouakchott).

Undular Bore racing towards the Atlantic

Nightly thunderstorms in the border region of Mauritania and Senegal are at the origin of the undular bore (low-level outflow) that raced out into the Atlantic at the speed of close to 85 km/h.

Zambezi floods

The 2009 Zambezi floods.

South African coastal lows, busters & gravity waves

South African coastal lows, busters and atmospheric gravity waves.

Storm surge along the east coast of South Africa

Semi-stationary cut-off low (COL) brought 60kt wind speeds to Durban.

Outflow from convective storm over Mauritania

Outflow from convective storm, Mauritania and adjacent Atlantic Ocean.