When flying on the northern hemisphere under tailwind conditions (cross wind component zero), which statement is correct regarding the location of pressure systems in relation to your flight path?

What is the approximate true altitude of the aircraft? It is flying at 3000 ft indicated altitude with an outside air temperature of ISA +20°C and with the QNH of 998 hPa set on the altimeter subscale, measured by a nearby airport at sea level.

An observer on the northern hemisphere is under influence of the wind system of a depression, which is moving from west to east. The centre of the depression passes to the south of the observer. For this observer the wind direction is..

Amongst others, what has to be expected when a warm air mass covers a cold surface?

If the pressure surfaces bulge upwards in all levels then the pressure system is a:

Which cloud species is described by the following definition?

After a snow shower, the small amount of dry snow on the ground is being lifted by rather strong winds. The snow

How does relative humidity and the dew point in an unsaturated air mass change with varying temperature?

On the northern hemisphere, an aircraft in flight experiences a drift to the right. Which of the following statements is correct?

It is the early afternoon on a sunny day in summer, and you are flying over the west coast of the Netherlands. If there is anon-frontal environment with a slack pressure gradient, the wind direction at the surface is likely to be..