M6 - 1E

They increase air density, improving lift.

They make the air less dense, resulting in reduced lift and increased drag.

They have no significant impact on air density.

They only affect engine performance, not lift.

The pressure exerted by still, non-moving air.

The sum of static and total air pressure.

The pressure created by the motion of air moving against an object.

The normal atmospheric pressure that acts equally in all directions.

High winds and turbulence.

Clear skies and good visibility.

Precipitation, dew, or fog.

An increase in air pressure.

Stratus

Nimbus

Cirrus

Cumulus

Balls or lumps of ice.

Frozen precipitation that melts and reaches the ground as rain.

Small ice pellets formed from raindrops that refreeze before reaching the surface.

Rain that falls and freezes on cold surfaces.

Clear skies with no clouds.

A steady, unchanging wind speed.

Nearby thunderstorms or blowing dust near the ground.

The presence of high-altitude cirrus clouds.

Charts are text-based, while forecasts are graphical.

Charts show current or recent conditions, while forecasts predict future conditions.

Charts are only used for VFR flights, while forecasts are for IFR flights.

There is no difference; the terms are interchangeable.

Surface Analysis Chart

Weather Depiction Chart

Significant Weather Chart

Winds and Temperatures Aloft Chart

To provide real-time observations every hour.

To forecast weather for a 5-mile radius around an airport.

To show information for moderate conditions like icing.

To report severe hazards like volcanic ash and severe turbulence.

Every 15 minutes.

Every 6 hours.

Every hour.

Once a day.