Abbreviations
Spheres
Weather Briefings
Important acronyms
Miscellaneous Acronyms (Bonus)
100

The unabbreviated version of VFR

What is “Visual Flight Rules”?

100

The sphere where most weather is found

What is the Troposphere?

100

The three types of weather briefings

Standard, Abbreviated, Outlook

100

The four letter identifier for Nacogdoches airport

What is KOCH?

100

Few clouds

What is FEW?

200

The unabbreviated version of AGL

What is ”Above Ground Level”?

200

This sphere is thicker at the equator and thinner at the poles

What is the Troposphere?

200

The website to look up weather briefings

200

The type of weather reporting system at Nacogdoches

What is the Automated Weather Observing System (AWOS)?

200

Overcast

What is OVC?

300

The unabbreviated version of MSL

What is Mean Sea Level?

300

The first sphere with a temperature inversion

What is the Stratosphere?

300

Allows pilots to be proactive in reacting to changing weather close to or during flight time. It has limited, targeted information

What is an Abbreviated Briefing?

300

The coded report of current conditions at an airport, updated hourly (typically)

What is a Meteorological Aerodrome Report (METAR)?

300

Thunderstorms in the vicinity

What is VCTS?

400

The unabbreviated version of IFR

What is ”Instrument Flight Rules”?

400

The highest level of civilian flight (sphere)

What is the Stratosphere?

400

For planning purposes when departure is 6 hours or more from the time of the briefing

What is an Outlook Briefing?

400

A report from a pilot in flight that discusses conditions experienced by that pilot

What is a PIREP?

400

Mist

What is BR?

500

The unabbreviated version of IMC

What is Instrument Meteorological Conditions?

500

The sphere that burns meteors

What is the mesosphere?

500

Provides a complete and detailed depiction of the weather elements for the intended flight

What is a standard briefing?

500

A weather warning issued to notify pilots about significantly dangerous flying conditions

What is Significant Meteorological Information (SIGMET)?

500

Shallow Fog

what is MIFG?