Impact Day: Spotty PM Storms with Gusty Winds

What is an Impact Day?

An Impact Day is a day when the National Weather Service (NWS) issues a hazardous weather outlook (HWO) or a special weather statement (SWS) for a particular area. These outlooks and statements are issued when there is a potential for severe weather, such as thunderstorms, tornadoes, or hail.

What does it mean when the NWS issues an Impact Day?

When the NWS issues an Impact Day, it means that there is a potential for severe weather in the area. This does not mean that severe weather will definitely occur, but it does mean that people should be aware of the potential and take precautions.

What should you do if the NWS issues an Impact Day for your area?

If the NWS issues an Impact Day for your area, you should:

• Stay informed about the latest weather forecast. The NWS will provide updates on the weather forecast throughout the day. You can stay informed by listening to the radio, watching the news, or checking the NWS website.
• Be prepared to take shelter. If severe weather threatens, you should be prepared to take shelter in a sturdy building. Your home, a school, or a community center are all good options.
• Have a plan for what you will do if you lose power. If the power goes out during a storm, you should have a plan for what you will do. This plan should include having a battery-powered radio and flashlights, as well as a supply of food and water.

What are the different types of severe weather that can occur during an Impact Day?

The different types of severe weather that can occur during an Impact Day include:

• Thunderstorms. Thunderstorms are the most common type of severe weather that occurs in the United States. They can produce heavy rain, hail, lightning, and strong winds.
• Tornadoes. Tornadoes are violent rotating columns of air that can cause widespread damage. They are most common in the Great Plains, but they can occur anywhere in the United States.
• Hail. Hail is frozen precipitation that can range in size from small ice pellets to large hailstones. Hail can cause damage to cars, homes, and crops.
• Strong winds. Strong winds can cause damage to trees, power lines, and buildings. They can also create dust storms and wildfires.

How can you stay safe during an Impact Day?

There are a number of things you can do to stay safe during an Impact Day:

• Stay informed about the latest weather forecast. The NWS will provide updates on the weather forecast throughout the day. You can stay informed by listening to the radio, watching the news, or checking the NWS website.
• Be prepared to take shelter. If severe weather threatens, you should be prepared to take shelter in a sturdy building. Your home, a school, or a community center are all good options.
• Have a plan for what you will do if you lose power. If the power goes out during a storm, you should have a plan for what you will do. This plan should include having a battery-powered radio and flashlights, as well as a supply of food and water.
• Never drive through flooded areas. If you come to a flooded area, turn around and find another route. Even a few inches of water can cause your car to stall.
• Be aware of downed power lines. If you see a downed power line, stay away from it and call 911.

By following these tips, you can help to stay safe during an Impact Day.