is caused by hot dry weather systems that stay in one place for weeks or months at a time

an overflowing of water in a normally dry area

An extremely fast spinning column of air extending from the base of a thunderstorm to Earth's surface.

localized storm often accompanied by heavy precipitation, frequent thunder, and dangerous lightning

Can stretch more than 600 kilometers across and it may have strong as 320 km/h and long-lasting storms existing for a week or more

an event in which wind coincides with varieties of precipitation that only occur at freezing temperatures such as snow, mixed snow and rain

can cause great damage , destroy human-made structures as well as coastal ecosystems.

it means that the condition are right for producing severe weather but the severe weather has not yet developed

signifies that severe weather is approaching and people should take shelter.