Why does heat make storms?
Why does heat make storms?
On a hot summer day the surface of the Earth is heated by the sun. The Earth’s surface heats the air just above the surface through the process of conduction. The action of warm air rising and cold air sinking (convection) plays a key role in the formation of severe thunderstorms.
What causes thunderstorms in the summer?
When warm moist air is unstable, it rises and expands. Thunderstorm development is so common on summer afternoons because of this intense daytime heating as well as the high humidity, thus providing the moisture, the instability, and the warm temperatures needed to cause the air to begin rising.
Why does a cold front bring thunderstorms?
A cold front does the same thing with a warm air mass. The warm air is forced to rise because it is less dense than the cold air. This causes a surge of rising motion with is known to generate thunderstorms.
When a cold front is approaching what happens?
The air mass behind a cold front is likely to be cooler and drier than the one before the front. If a cold front is approaching, precipitation is possible just before and while the front passes. Behind the front, expect clearing skies, cooler temperatures, and lower relative humdities.
How long do cold fronts last?
The effects from a cold front can last from hours to days. The air behind the front is cooler than the air it is replacing and the warm air is forced to rise, so it cools.
What happens after a cold front passes through an area quizlet?
What happens after a cold front passes through an area? Temperature and humidity drop. Warm air holds much more moisture than cold air, and the relative humidity tells how much of the water that air could possibly hold is there. So higher temperatures and higher relative humidity means more water in the air.
Does barometric pressure make you tired?
Yet another reason for feeling tired or “down” in rainy weather is the effect of barometric pressure. Lower barometric pressure, which tends to accompany stormy weather, reduces the amount of available oxygen in the air. Drowsiness is one of the first signs of insufficient oxygen.”