Tornado Watch vs Warning vs Emergency: What to Do
A tornado watch means conditions favor tornadoes, a warning means a tornado is occurring or imminent, and a tornado emergency is rare enhanced warning language for a confirmed severe threat to a populated area.
Timeline
- Watch: Review the plan, make the safe place accessible, charge devices and monitor official alerts.
- Warning: Take shelter immediately in the best available location; do not wait to see the tornado.
- Emergency: Remain sheltered: the warning includes rare enhanced wording for a confirmed, highly dangerous tornado threatening a populated area.
A tornado watch means tornadoes are possible in and near a broad watch area because the atmosphere is favorable. It is the preparation stage, not a prediction that every community in the area will see a tornado. Watches are issued by the Storm Prediction Center and can cover many counties or parts of several states, often for multiple hours. [1][2]
A tornado warning means a tornado has been indicated by weather radar or reported by spotters and is occurring or imminent in the warned area. Warnings are issued by local National Weather Service forecast offices for a smaller area and shorter period than a watch. Anyone in the warning polygon should take protective action immediately rather than waiting for visual confirmation. [1][2]
A tornado emergency is uncommon enhanced language within a tornado warning, used when a confirmed tornado creates an especially severe threat to life and catastrophic damage in a populated area. It does not create a separate reason to delay action: a standard tornado warning already means shelter now. The emergency wording communicates exceptional confidence and impact, not a first trigger for safety. [1]
During a watch, identify the closest safe place, make sure it is unlocked and clear, keep shoes and protective head covering nearby, and enable multiple alert sources such as Wireless Emergency Alerts, local media and NOAA Weather Radio. Know whether a planned route involves a mobile home, large open room or other unsafe structure, and move early if reaching sturdy shelter takes time. [1][3][4]
During a warning, use a purpose-built safe room or storm shelter when available. Otherwise go to a basement or a small interior room on the lowest floor of a sturdy building, away from windows and exterior walls. Put as many walls as possible between people and the outside, protect the head and neck from debris, and bring pets only if doing so does not delay sheltering. [3][4]
Mobile homes, vehicles, tents, sheds and highway overpasses are not safe tornado shelters. The best option is to reach a designated shelter or sturdy building before the storm arrives. If warning time is extremely short, follow current local National Weather Service instructions for the exact situation. Do not attempt to outrun a nearby tornado through congested traffic or stop beneath an overpass. [3][4]
Alerts are geographically specific, so know whether you are inside the official warning polygon rather than relying only on a county name or outdoor siren. If threatening weather is visible or audible, take shelter even if a phone alert has not arrived. Stay sheltered until the warning expires or officials give an all-clear, then watch for downed power lines, gas leaks, debris and additional storms. [1][2][3][4]
Sources
- National Weather Service — Understand Tornado Alerts
- National Weather Service — Tornado Watch Versus Warning
- National Weather Service — What to Do During a Tornado
- National Weather Service — Tornado Safety Content