Severe Weather 101: Tornado Basics - NOAA National Severe …
Basic information about tornadoes, from the NOAA National Severe Storms Laboratory.
Severe Weather 101: Thunderstorm Basics - NOAA National …
A thunderstorm is classified as “severe” when it contains one or more of the following: hail one inch or greater, winds gusting in excess of 50 knots (57.5 mph), or a tornado. How many …
Severe Weather 101: Tornado FAQ - NOAA National Severe …
A tornado watch defines an area where tornadoes and other kinds of severe weather are possible in the next several hours. It means that you need to be alert, and be prepared to go to safe …
Severe Weather 101: Tornado Types - NOAA National Severe …
Severe Weather 101 Types of Tornadoes. Tornadoes come from mainly two types of thunderstorms: supercell and non-supercell. Supercell Tornadoes. Tornadoes that come from …
NSSL Research: Tornadoes - NOAA National Severe Storms …
Tornado research at the National Severe Storms Laboratory, with information about current research into tornadoes and its role in improving tornado forecasts and warnings to help save …
NOAA National Severe Storms Laboratory
The Warn-on-Forecast System is a revolutionary approach to forecasting severe weather and tornadoes that could lead to a historic leap in warning lead times. Learn more →
Severe Weather 101 - NOAA National Severe Storms Laboratory
Step into the wild world of weather! What is a wall cloud? What's the difference between a watch and a warning? Is it ever “too cold to snow”? Learn all about thunderstorms, tornadoes, hail, …
Severe Weather 101: Tornado Detection - NOAA National Severe …
Phased array technology can scan an entire storm in less than one minute, allowing forecasters to see signs of developing tornadoes well ahead of current radar technology. NSSL uses a …
Severe Weather 101: Damaging Winds Basics - NOAA National …
Damage from severe thunderstorm winds account for half of all severe reports in the lower 48 states and is more common than damage from tornadoes. Wind speeds can reach up to 100 …
Severe Weather 101: Thunderstorm Types - NOAA National Severe …
A strongly bowed echo may indicate high winds in the middle of the line, where the storms are moving forward most quickly. Brief tornadoes may occur on the leading edge of a bow echo. …