In the realm of severe weather, tornadoes are among the most destructive and dangerous phenomena. To help communities prepare for these potentially life-threatening events, meteorologists issue tornado watches and warnings. While these terms may sound similar, they serve distinct purposes and carry different levels of urgency. In this article, we'll explore the differences between a tornado watch and a tornado warning, providing essential information to help individuals and communities stay safe during severe weather events.
Tornados
Tornadoes are possible throughout the year in North Carolina. For this reason, it is important to always be prepared for severe weather and the possibility of a tornado. While tornadoes are potential during the entire year in North Carolina, they are mostly likely during the spring season (March through May).
Knowing what to do when a tornado occurs could mean the difference between life and death. When a tornado is spotted or a warning is issued, you may have only a few critical moments to make some crucial decisions. Understanding the basics of tornado safety and preparing now could help reduce the chances of injury or death for you and your family.
Tornado Watch
Watches are issued when there is the potential for severe weather. When conditions indicate severe weather is forming, a watch will be released to make the public aware of what could happen.
A tornado watch is issued by the National Weather Service (NWS) when atmospheric conditions are favorable for the formation of tornadoes. During a tornado watch, residents in the affected area should remain vigilant and be prepared to take action if a tornado develops. Tornado Watches occur when conditions favorable for a severe thunderstorm with a tornado are imminent. Here are key characteristics of a tornado watch:
Purpose of Tornado Watch
The primary purpose of a tornado watch is to alert residents to the possibility of tornadoes in the area and encourage them to stay informed about changing weather conditions.
A tornado watch does not mean that a tornado has been spotted or that one is imminent. Instead, it serves as a warning to remain alert and prepared for severe weather.
Duration of Tornado Watch
Tornado watches are typically issued several hours in advance of potential severe weather and may cover a large geographic area, such as an entire county or multiple counties.
Watches are often in effect for several hours, allowing residents and emergency responders ample time to prepare for possible tornado activity.
Action to consider in Tornado Watch
During a tornado watch, residents should stay informed by monitoring local weather reports, radio broadcasts, and NOAA weather radios for updates on the situation.
It is also essential to review and refresh emergency plans, identify safe shelter locations, and ensure that emergency supplies are readily available.
Tornado Warning
A warning is the next step in the process. Warnings are issued when that severe weather is actually occurring or is imminent.
A tornado warning is issued when a tornado has been detected by radar or spotted by trained storm spotters or law enforcement officials. Unlike a tornado watch, which indicates a potential for tornadoes, a tornado warning signifies an immediate threat to life and property. Tornado Warnings occur when a tornado has been reported or there is evidence a tornado is imminent. Here are key characteristics of a tornado warning:
Purpose of Tornado Warning
The primary purpose of a tornado warning is to alert residents in the affected area to take immediate action to protect themselves from the imminent danger posed by the tornado.
When a tornado warning is issued, residents should seek shelter immediately and take steps to ensure their safety.
Duration of Tornado Warning
Tornado warnings are typically issued for a specific area and are in effect for a relatively short period, usually ranging from 30 minutes to an hour.
The duration of a tornado warning depends on the speed and direction of the tornado as it moves through the area.
Action to consider in Tornado Warning
When a tornado warning is issued, residents should seek shelter in a sturdy building, preferably in a basement or interior room on the lowest level.
It is essential to stay away from windows, doors, and exterior walls and protect oneself from flying debris by covering up with heavy blankets or mattresses.
Example
For example, a tornado watch would mean there is a good chance that a tornado will form in the affected area, whereas a tornado warning would mean a tornado is occurring or about to occur and those in the region should take cover immediately.
Severe Thunderstorm Watch
Severe Thunderstorm Watch is issued if there is the potential for the development of a thunderstorm with either wind gusts of 90 kilometres an hour or greater, hail with a diameter of two centimetres or greater, or heavy rainfall (with 50 millimetres or more within one hour).
Severe Thunderstorm Warning
Severe Thunderstorm Warning would be issued if a cell was spotted on radar with one or more of the weather conditions listed above occurring.
Conclusion
In conclusion, understanding the difference between a tornado watch and a tornado warning is essential for staying safe during severe weather events. A tornado watch indicates that atmospheric conditions are favorable for tornado formation and serves as a reminder to stay vigilant and prepared. In contrast, a tornado warning signifies an immediate threat and requires immediate action to seek shelter and protect oneself from the imminent danger posed by the tornado. By staying informed, having a plan in place, and taking appropriate action when necessary, individuals and communities can minimize the risks associated with tornadoes and stay safe during severe weather events.
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