Table of Contents
Does dense air cause storms?
The rain-cooled denser air acts as a “mini cold front”, called an outflow boundary. Like fronts, this boundary lifts warm moist air and can cause new thunderstorms to form.
What type of cloud is responsible for thunderstorms?
Thunderstorms occur in a type of cloud known as a cumulonimbus. They are usually accompanied by strong winds and often produce heavy rain and sometimes snow, sleet, or hail, but some thunderstorms produce little precipitation or no precipitation at all.
Why do thunderstorms happen at night?
Thunderstorms that form at night occur in the absence of heating at the ground by the sun. Consequently, the storms that form at night are usually “elevated,” meaning that they form aloft above the cooler air near the ground, rather than near the ground, which only during the day can get warmer.
What are the dangers of thunderstorms?
Thunderstorms are dangerous because they include lightning, high winds, and heavy rain that can cause flash floods. Remember, it is a severe thunderstorm that produces a tornado. By definition, a thunderstorm is a rain shower that contains lightning.
What’s the difference between a strong and heavy thunderstorm?
Strong: Winds will either be between 30-57 MPH and hail will usually be pea size, dime size, or nickel size. Sometimes though the storm will only be categorized as strong ONLY because of hail or just strong winds. Severe: Storms will have winds 58 MPH or above and hail will be either quarter size or above as well.
What are the types of clouds that produce thunderstorms?
Scientists have calculated that about 760 storms occur every hour all over the earth and 1,800 storms daily. Cumulonimbus or nimbus clouds are the only clouds that produce thunderstorms with hail, lightning, and thunder. They form in warm weather, warm air creates clouds that are 20,000 feet or more in size.
What causes thunderstorms to form on cold fronts?
2. Lines of thunderstorms commonly form along cold fronts, especially where the two air masses have very different moisture characteristics. This often happens as hot, dry (cT) air masses from the west interact with warm, moist (mT) air masses from the southeast.
What makes a thunderstorm have lightning and Thunder?
A thunderstorm is a storm with lightning and thunder. Its produced by a cumulonimbus cloud, usually producing gusty winds, heavy rain and sometimes hail. What causes a thunderstorm? The basic ingredients used to make a thunderstorm are moisture, unstable air and lift. You need moisture to form clouds and rain.
What are the ingredients for a thunderstorm to form?
A warning can cover parts of counties or several counties in the path of danger. How does a thunderstorm form? Three basic ingredients are required for a thunderstorm to form: moisture, rising unstable air (air that keeps rising when given a nudge), and a lifting mechanism to provide the “nudge.”