Ok, is this normal in real life?
In fsx, when I set the weather to stormy, any jet (say a 747-400) will display unusual readings on the altimeter, airspeed indicator, and heading indicator! This applies to all aircraft, even the Cessna 172!
The altimeter and airspeed indicator will practically jump 15 knots above and below the correct reading, the indicators are calibrated correctly, I reseted them about 3 times!
Even when taxing on the ground, I noticed that the airspeed indicator was reading 15 knots, when in reality, it is 0 (brakes on and thrust idle)
This only happens when I switch to Instrument meteorological conditions. I need to practice flying without visibility.
So is this normal?
The altimeter, airspeed and VSI are driven by combinations of local ambient air pressure (static pressure) and ram air pressure (total pressure). Turbulence is air in movement, so it will cause fluctuating pressures on the instrument sensors, and fluctuating readings.
The heading indicator may be affected by a sideway gust of air striking the vertical stabilizer or fuselage side.
The Traffic Pattern – Flying Around An Airport