Atmospheric dynamics:

• The life cycle of extratropical cyclones.
  
• Midlatitude high-impact weather events: wind storms, heavy precipitation events, cold spells.
  
• Rossby waves: excitation, propagation and breaking.
  
• Low-frequency atmospheric variability: North Atlantic Oscillation, weather regimes (e.g., blockings), annular modes.
• Mid-latitude air-sea interactions.
  

Predictability of atmospheric flow:

• Initial error growth
  
• Model error growth: sensitivity to deep convection and cloud microphysics representation in numerical models

Geophysical Fluid Dynamics:

• Shear instabilities: barotropic, baroclinic.
  
• Wave-mean flow interactions.