What’s the difference between a tornado watch and a tornado warning?
Tornadoes can be unpredictable, terrifying, and devastating. Any advance notice of the danger can be life-saving, and there are key differences in the information provided by the National Weather Service.
Tornado Watch: Be Prepared
The National Weather Service (NWS) defines a tornado as a "violently rotating column of air extending from the base of a thunderstorm down to the ground." According to the NWS, these weather phenomena are capable of obliterating well-made structures, uprooting trees, and hurling objects through the air like deadly missiles. Tornadoes can happen anytime and anywhere, as reported by NBC New York.
A tornado watch means that conditions are favorable for tornadoes to form. The NWS issues these watches when atmospheric conditions – such as unstable air, wind shear, and moisture – create an environment where tornadoes could develop. Tornado watches typically cover large areas and can last several hours.
What to Do During a Tornado Watch:
- Stay informed by monitoring local NWS alerts and weather radios.
- Review your home’s emergency plan and identify your safest shelter.
- Ensure your emergency kit – including flashlights, batteries, water, and first-aid supplies – is up-to-date and readily available.
- Be ready to act quickly if conditions worsen.
Tornado Warning: Take Immediate Action
A tornado warning is far more urgent than a watch. It means a tornado has been spotted or indicated by radar, and immediate action is necessary to protect lives and property. Warnings are typically issued for smaller areas than watches and usually last less than an hour.
What to Do During a Tornado Warning:
- Seek shelter in a basement, storm cellar, or an interior room on the lowest floor away from windows.
- If you are in a mobile home or vehicle, get to a sturdy shelter quickly.
- Protect your head and neck with a helmet, blanket, or your arms.
- Stay sheltered until authorities confirm it is safe to emerge.
Conclusion
Misinterpreting a tornado watch or warning can lead to delayed responses or unnecessary panic. A watch means conditions are right for tornadoes, prompting preparedness. A warning means a tornado is occurring or imminent, requiring immediate action. Tornadoes can form in minutes, leaving little time for preparation. Knowing the difference between these alerts and having a safety plan in place is critical.
Frequently Asked Questions (FAQs)
- What is a tornado watch?
- A tornado watch means that conditions are favorable for tornadoes to form.
- What is a tornado warning?
- A tornado warning means that a tornado has been spotted or indicated by radar, and immediate action is necessary to protect lives and property.
- What should I do during a tornado watch?
- Stay informed, review your emergency plan, and ensure your emergency kit is up-to-date and readily available.
- What should I do during a tornado warning?
- Seek shelter, protect your head and neck, and stay sheltered until authorities confirm it is safe to emerge.
