SDDOT / Aeronautics / Airport Information / Flight Aids / Enroute Flight Advisory Service

FLIGHT WATCH
Enroute Flight Advisory Service (EFAS)

EFAS provides current enroute weather information and is the best source of PIREP's. EFAS is not for activating or closing flight plans, making position reports, receiving standard or outlook briefings. EFAS is a service specifically designed to provide enroute aircraft with timely and meaningful weather advisories pertinent to the type of flight intended, route of flight and altitude.

Pilot participation is essential to the success of EFAS by providing a continuous exchange of information on weather, winds, turbulence, flight visibility, icing, etc., between pilots and flight watch specialists. Pilots are encouraged to report good weather as well as bad, and to confirm expected conditions as well as unexpected to EFAS facilities.

When calling a FLIGHT WATCH (EFAS) station:

Transmit and receive on 122.0 Mhz or 133.025 when at or above FL180.
Give your COMPLETE aircraft call sign.
Give your LOCATION referenced to the nearest VOR or city.
WAIT for a reply before making your request.

EXAMPLE: "Princeton Flight Watch, Skyhawk N12345 15 miles ast of Brookings, Over."

The specialist in the Flight Watch Control Station (FWCS) is monitoring multiple remote radio outlets, and may be busy talking to another pilot in another state when you call.

Map Enroute

SOUTH DAKOTA - FLIGHT WATCH OUTLETS
BELOW FL 180 - 122.0 MHz (Princeton, MN EFAS)
Aberdeen, Huron, Pierre, and Sioux Falls
Rapid City (Denver, CO EFAS)
ABOVE 180 - 135.675 MHz (Princeton, MN EFAS)