Definition
An ATC authorization that allows a pilot to operate under visual flight rules within the surface area of controlled airspace when the weather is below standard VFR minimums. Special VFR generally requires at least 1 statute mile flight visibility and the ability to remain clear of clouds, and it must be specifically requested from and approved by ATC. At night, the pilot and aircraft must each be instrument qualified.
Plain English
A special permission from air traffic control to fly visually in or out of an airport's controlled airspace when the weather is too poor for normal visual flying, as long as you can stay clear of clouds and see at least one mile.
Context Anchor
Pilots encounter Special VFR when departing, arriving, or moving near a controlled airport in low visibility or low clouds while still intending to fly by outside visual reference.
Derivation
The word 'special' here means 'a specific exception to the standard rule.' It does not mean 'better' or 'privileged' -- it means standard VFR rules don't apply, and a separate, narrower set of conditions does.
Why Pilots Care
Allows a VFR pilot to continue a flight or complete a departure or arrival in controlled airspace without switching to IFR procedures when weather briefly drops below standard VFR limits.
Grounding Statement
Special VFR is a controlled-airport exception for visual flying when normal visual-weather rules are not met.
Intuition Check
Do not read “special” as “free to fly VFR in bad weather.” Special VFR is only allowed with an air traffic control clearance, in specific airspace, and with required visibility while remaining clear of clouds.
Example Sentence 1
The pilot requested Special VFR from the tower to depart the Class D airspace when the ceiling dropped below 1,000 feet.
Example Sentence 2
Under Special VFR the aircraft stayed below the clouds and maintained one mile visibility while crossing the Class D airspace.