article thumbnail

What Is a SPECI and When Is It Issued?

Pilot Institute

Thunderstorms can also bring wind shear and lightning. Altimeter Setting The altimeter setting gives you pressure information in inches of mercury or hectopascals. For accurate altitude readings, you should set your aircraft’s altimeter to match the local altimeter setting.

article thumbnail

How to Brief an Instrument Approach (Step-by-Step)

Pilot Institute

Set your altimeter bug accordingly. You may also include significant weather conditions, wind shear, or excessive turbulence. If your aircraft has a secondary communication radio, set it to the ground frequency. 4) Set Approach Minimums Look for the approach minimum altitudes in the lower half of the plate.