An Introduction to Hail Basics in Under 5 Minutes
Hail is a form of solid precipitation that forms within strong thunderstorms. Unlike regular raindrops, hailstones are balls or lumps of ice that can vary in size from small pellets to large, damaging stones.
How Does Hail Form?
Hailstones develop when updrafts in a thunderstorm carry raindrops into extremely cold areas of the atmosphere, causing them to freeze. As these frozen droplets collide with supercooled water droplets, they accumulate layers of ice, growing larger until they become heavy enough to fall to the ground. The size of the hailstone depends on the strength of the updraft and the amount of supercooled water available. (nssl.noaa.gov)
What Are the Dangers of Hail?
Hail can cause significant damage to property, vehicles, and crops. Larger hailstones, especially those exceeding 1 inch in diameter, are considered severe and can lead to substantial destruction. Additionally, hail poses a threat to livestock and can be dangerous to people caught outdoors during a hailstorm. (nssl.noaa.gov)
How to Stay Safe During a Hailstorm?
- Seek Shelter: If you are outdoors, find a sturdy building or vehicle to protect yourself from hailstones.
- Avoid Windows: Stay away from windows to prevent injury from broken glass.
- Protect Vehicles: If possible, move vehicles into a garage or covered area to shield them from hail damage.
Where Are Hailstorms Most Common?
In the United States, regions known as "hail alley," which includes parts of Colorado, Nebraska, and Wyoming, experience the highest frequency of hailstorms. However, hail can occur in many parts of the country, especially during severe thunderstorms. (nssl.noaa.gov)
How to Report Hail?
Accurate reporting of hail events is crucial for improving weather forecasts and warnings. The National Weather Service encourages the public to report hail size and damage through local offices or online platforms. (nssl.noaa.gov)
Understanding hail formation and its potential impacts can help you take appropriate precautions during severe weather events.
Highlights:
- CLOSE ENCOUNTERS: LIFT campaign seeks unprecedented tornado and hail data – NSSL News, Published on Tuesday, April 28