Weather Systems

Warm Front

• Warm air overtakes colder air like a blanket
• Poor visibility
• Stable conditions

Cold Front

• Cold air undertakes warmer air like a snowplow
• Good visibility
• Varying conditions

Occluded Front

• Warm Occlusion
• Cold Occlusion

Stationary Front

Requirements

• Moisture
• Instability (rising air)
• Lifting Action (frontal, convergence, orographic…)

Stages

• Cumulus (updrafts, vertical development, collecting moisture)
• Mature (updrafts and downdrafts, air becomes completely saturated, precipitation begins)
• Dissipating (downdrafts, precipitation)