Home / Weather / Tornado Watch vs. Warning: Know When to Take Cover
Tornado Watch vs. Warning: Know When to Take Cover
11 Mar
Summary
- A tornado watch means conditions favor tornadoes, so be prepared.
- A tornado warning signifies imminent danger; take immediate action.
- Tornado warnings are issued when a tornado is spotted or indicated by radar.
Severe thunderstorms are moving across Indiana on Wednesday, March 11, with the potential for tornadoes developing in nearly half the state. The National Weather Service issues alerts to help residents distinguish between tornado watches and warnings.
A tornado watch means that conditions are conducive to tornado formation, signaling a need for preparedness. These alerts typically last for several hours and indicate that the atmospheric environment, characterized by warm, moist air meeting cooler, dry air and wind shear, can support the development of rotating thunderstorms.
A tornado warning, however, demands immediate action. It is issued when a tornado has been visually confirmed or detected by radar, indicating imminent danger. Warnings usually cover smaller areas and have shorter durations, often around 15 minutes. Doppler radar can identify tornadic vortex signatures, aiding meteorologists in spotting these dangerous weather patterns.
