Answer: c) Steady wind
Answer: c) Wind shear turbulence
Jim zoomed the radar. A solid band of green, yellow, and a patch of red lay 40 miles ahead. “We can’t hold much longer. Fuel is 5.3 tons. Our alternate is Naples, but their TAF is predicting deterioration in the next hour.”
Answer: b) TAF forecasts
“What’s the QNH from ATIS again, Maya?” Jim asked.
ATPL Meteorology Question 1: A falling pressure with increasing wind speed and veering wind direction in the Northern Hemisphere indicates the passage of which type of front?
“Standard lapse rate is 1.98°C per 1,000 feet, but this airmass is stable—temperature drops about 2°C per thousand. From +2°C to 0°C is a 2°C drop. So the freezing level is at 1,000 feet AGL,” Maya calculated. “But the cloud base is 200 feet. The entire layer from 200 to 1,000 is below freezing but above the surface. That’s the sweet spot for severe icing.”
$$ \textTemperature differences between two areas $$