Hazardous Inflight Weather Advisory Service (HIWAS)

Definitions

• An en route FSS service providing continuously updated automated of hazardous weather within 150 nautical miles of selected VORs, available only in the conterminous 48 states.
• Service providing recorded weather forecasts broadcast to airborne pilots over selected VORs.
• Recorded weather forecasts broadcast to airborne pilots over selected VORs.

References

• Instrument Flying Handbook, Federal Aviation Administration, 2014
• Pilot's Handbook of Aeronautical Knowledge, Federal Aviation Administration, 2023
• Powered Parachute Flying Handbook, Federal Aviation Administration, 2007
• Weight-Shift Control Aircraft Flying Handbook, Federal Aviation Administration, 2008