Severe Thunderstorm Watch: What You Need to Know
A Severe Thunderstorm Watch means that conditions are favorable for the development of severe thunderstorms in and close to the watch area. It does NOT mean that severe thunderstorms are currently happening, but rather that they are possible.
What Qualifies as a Severe Thunderstorm?
The National Weather Service (NWS) defines a severe thunderstorm as one that produces one or more of the following:
- Hail that is 1 inch in diameter or larger (quarter size).
- Winds of 58 mph (93 km/h) or greater.
- A tornado.
Frequent cloud-to-ground lightning is also a danger with all thunderstorms, even if they are not classified as severe.
What to Do During a Severe Thunderstorm Watch
When a severe thunderstorm watch is issued, it’s important to:
- Stay Informed: Monitor weather updates from reliable sources such as the National Weather Service (NWS), local news channels, and weather apps. Pay close attention to any changes in the weather forecast and any warnings that may be issued.
- Be Prepared: Review your emergency plan and ensure you have a way to receive weather alerts. This could include a NOAA Weather Radio, a smartphone with weather alerts enabled, or monitoring local news broadcasts.
- Secure Outdoor Items: Bring loose outdoor objects inside, such as patio furniture, trash cans, and decorations. These items can become projectiles in strong winds.
- Know Your Safe Spot: Identify the safest place in your home or building to take shelter if a severe thunderstorm warning is issued. This is typically an interior room on the lowest floor, away from windows.
- Be Aware of Your Surroundings: If you are outdoors, be aware of your surroundings and have a plan to seek shelter quickly if the weather deteriorates. Avoid open fields, hilltops, and bodies of water.
Difference Between a Watch and a Warning
It’s crucial to understand the difference between a severe thunderstorm watch and a severe thunderstorm warning:
- Watch: Conditions are favorable for severe thunderstorms to develop. This is a time to prepare.
- Warning: A severe thunderstorm is occurring or is imminent in the warned area. This is a time to take action and seek shelter immediately.
Staying Safe After the Storm
Even after the immediate threat of a severe thunderstorm has passed, it’s important to remain cautious:
- Be aware of downed power lines: Stay away from any downed power lines and report them to the power company.
- Watch out for flooding: Heavy rain from thunderstorms can cause flash flooding, even after the storm has passed. Avoid driving through flooded areas.
- Inspect for damage: Check your property for any damage caused by the storm, such as fallen trees or structural damage.
By staying informed and prepared, you can minimize the risks associated with severe thunderstorms and ensure your safety.