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Hail,Severe Thunderstorm

Published on Mar 20, 2016

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PRESENTATION OUTLINE

Severe Thunderstorm & Hail

Brenda Aldana, Miguel Caballero

Geographic Occurrrence

A thunderstorm, also known as an electrical storm, a lightning storm, thundershower or simply a storm is a form of weather characterized by the presence of lightning and its acoustic effect on the Earth's atmosphere known as thunder.

What is Severe Thunderstorm?

A Severe Thunderstorm is a heavy storm with thunder and lightning. Also typically heavy rain or sometimes causes hail.a storm with lightning and thunder. The basic ingredients used to make a thunderstorm are moisture, unstable air and lift. You need moisture to form clouds and rain.

When is a thunderstorm most likely to occur?


Thunderstorms can occur year-round and at all hours. But they are most likely to happen in the spring and summer months and during the afternoon and evening hours.
Photo by Agrofilms

Safety and Preparation

All thunderstorms produce lightning and are dangerous. If you hear the sound of thunder, then you are in danger from lightning. Lightning kills between 75 to 100 people each year and being outdoors in the most dangerous place to be. Always listen to the radio and television for the latest information and instructions for your area.

A THUNDERSTORM WATCH means a thunderstorm is possible for your area.
IF YOU’RE INDOORS:

Avoid water. It’s a great conductor of electricity, so do not take a shower, wash your hands, wash dishes or do laundry.
Do not use a corded telephone. Lightning may strike exterior phone lines.
Do not use electric equipment like computers and appliances during a storm.

Thunderstroms Effects

A thunderstorm is also referred to as an electrical storm, due to the presence of lightning and thunder during the manifestation of the natural phenomenon. This weather variant is characterized by very contradictory nature, like the presence of heavy rain or no precipitation at all.

Thunder Storm Damege

thunderstorms can cause damage due to high winds, flash flooding from rain and from lightning strikes.
Strong thunderstorms can also spawn tornadoes, which can cause massive destruction to personal and business property.
As severe storms can indirectly and directly lead to injuries or death.

Thunderstorm number of deaths in 2013

The year 2013 set a record for the fewest lightning deaths in a year in the USA. There were 23 fatalities directly attributed to lightning, according to data from the National Weather Service.
Photo by Taiger808

Facts

Have you ever rubbed your feet across carpet and then touched a metal door handle? If so, then you know that you can get shocked! Lightning works in the same way.
Photo by ORAZ Studio

what is Hail?

pellets of frozen rain that fall in showers from cumulonimbus clouds.

Geographic Occurrence

Certain parts of the world receive more hail than others. The approach of the summer monsoon season in India brings severe thunderstorms, often with tornadoes and hail.
Photo by Ken Lund

How is Hail made?

Hail is formed when very strong thunderstorm updrafts meet super cooled water droplets. Super cooled water droplets are liquid water drops that are surrounded by air that is below freezing, Also they're a common occurrence in thunderstorms.

Causes of hail

Hail is caused when raindrops are lifted up into the atmosphere during a thunderstorm and then supercooled by temperatures below freezing, turning them into ice balls

Safety & Preparation

Be aware of bad weather. Listen for warnings on TV and radio.

Stay away from windows

Take cover immediately

Carry a blanket in your car to protect you from shattered windshields

Hail is pellets of frozen rain that fall in showers from cumulonimbus clouds.

Photo by blmiers2

Hail damages

Hail can cause serious damage, notably to automobiles, aircraft, skylights, glass-roofed structures, livestock, and most commonly, farmers crops. Hail damage to roofs often goes unnoticed until further structural damage is seen, such as leaks or cracks.

Intresting Facts

Hail causes about $ 1 billion dollars in damage to property and crops each year, according to the National Oceanic Atmospheric Administration (NOAA).