Graphical Airmen's Meteorological Information (G-AIRMET)

A graphical depiction of weather that may be hazardous to aircraft, but are less severe than SIGMETs. G−AIRMETS are issued 3 hours apart for a period of up to 12 hours into the future for the lower 48 states and coastal waters. The weather hazards depicted can be:

  1. Moderate turbulence
  2. Low−level windshear
  3. Strong surface winds greater than 30 knots
  4. Moderate icing
  5. Freezing level
  6. Mountain obscuration
  7. IFR (Widespread areas of ceilings less than 1,000 ft or visibility less than 3 miles.)

Source: Pilot Contoller Glossary (PCG)

See also: