CFI Pop Quiz #309 - AIRMET

[Chris Burgess]

What information would be covered in an AIRMET?

A) Severe turbulence.
B) Extensive mountain obscurement.
C) Hail of 3/4 inch or greater diameter.

[Rando]

B) Extensive mountain obscurement.

AIRMET- In-flight weather advisories issued only to amend the area forecast concerning weather phenomena which are of operational interest to all aircraft and potentially hazardous to aircraft having limited capability because of lack of equipment, instrumentation, or pilot qualifications. AIRMETs concern weather of less severity than that covered by SIGMETs or Convective SIGMETs. AIRMETs cover moderate icing, moderate turbulence, sustained winds of 30 knots or more at the surface, widespread areas of ceilings less than 1,000 feet and/or visibility less than 3 miles, and extensive mountain obscurement.

Reference: AIM Pilot/Controller Glossary

[Paul_Zurawski]

Also going with (B)...ref AIM 7-1-6 h.5

[birdy]

wots an airmet?

[Rando]

wots an airmet?
An AIRMET (AIRman's METeorological Information) advises of weather that may be hazardous, other than convective activity, to single engine, other light aircraft, and Visual Flight Rule (VFR) pilots. However, operators of large aircraft may also be concerned with these phenomena.

AIRMETs are issued by the National Weather Service's Aviation Weather Center (for the lower 48 states and adjacent coastal waters) for the following weather-impacted reasons:

Instrument Flight Rules (IFR) or Mountain Obscuration -
Ceilings less than 1000 feet and/or visibility less than 3 miles affecting over 50% of the area at one time. Extensive mountain obscuration Turbulence
Moderate Turbulence Sustained surface winds of 30 knots or more at the surface Icing
Moderate icing Freezing levels These AIRMET items are considered to be widespread because they must be affecting or be forecast to affect an area of at least 3000 square miles at any one time. However, if the total area to be affected during the forecast period is very large, it could be that only a small portion of this total area would be affected at any one time.

AIRMETs are routinely issued for 6 hour periods beginning at 0145 UTC during Central Daylight Time and at 0245 UTC during Central Standard Time. AIRMETS are also amended as necessary due to changing weather conditions or issuance/cancellation of a SIGMET.

[JByrd]

Bee.

Jim

[Olbod]

B.

In other words Dave, airmets are an important part of that aviation stuff !

We have em down here too, but most of us just look at whats goin on
while we have our early mornin cuppa out on the veranda.
Cheers.

[birdy]

Bugger that,sounds too copmlicated to for me.
My airmet go's sumthn like this; the sun's up, can fly gyro.:p

[ventana7]

B.

The information in A and C would be in a "SIGmet" as they are more SIGnigicant.--

Rob

[Chris Burgess]

"B" is correct. What information would be covered in an AIRMET? (B) Extensive mountain obscurement. Several have given correct references and good information. Another reference, AC 00-45E, Section 4.

"A", Severe turbulence is included in a SIGMET, and "C", Hail of 3/4 inch or greater diameters would be included in a CONVECTIVE SIGMET. Like Rob said, conditions of "Significance".