At 3:09 p.m. EDT, severe thunderstorms were located along a line extending from 14 miles west of Spartanburg to near Greenville Downtown to 3 miles southeast of Pickens, moving southeast at 20 mph.

HAZARD: 70 mph wind gusts and ping pong ball size hail.

IMPACT: People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include: Greenville Downtown, Easley, Pickens, Greenville Eastside, West Greenville, Greer, Mauldin, Taylors, Berea, and Welcome.

A severe thunderstorm warning was issued by the National Weather Service in Greenville-Spartanburg at 2:47 p.m. on Sunday, Sept. 6. This warning applies to Anderson, Greenville, Pickens and Spartanburg counties.

Meteorologists warn of winds as strong as 60 mph.

Use caution, officials warn of hail as large as 0.88 inches.

The NWS warns: "For your protection move to an interior room on the lowest floor of a building. Please report damaging winds, hail, or flooding to the National Weather Service by calling toll free, 1, 800, 2 6 7, 8 1 0 1, or by posting on our Facebook page, or post it to X using hashtag nwsgsp. Your message should describe the event and the specific location where it occurred."

At 2:47 p.m., the NWS issued a statement including the following information:

"The National Weather Service in Greenville-Spartanburg has issued a Severe Thunderstorm Warning for: Northern Greenville County in Upstate South Carolina, West central Spartanburg County in Upstate South Carolina, North central Anderson County in Upstate South Carolina, Northeastern Pickens County in Upstate South Carolina, Until 3:30 p.m. EDT. At 2:47 p.m. EDT, severe thunderstorms were located along a line extending from 7 miles south of Columbus to 11 miles north of Greenville Downtown to 9 miles north of Pickens, moving southeast at 20 mph.

HAZARD: 60 mph wind gusts and nickel size hail.

IMPACT: Expect damage to trees and power lines. Locations impacted include: Greenville Downtown, Easley, Pickens, Greenville Eastside, West Greenville, Greer, Mauldin, Taylors, Berea, and Welcome."

A Severe Thunderstorm Warning is issued when a storm is occurring or about to occur with winds of 58 mph or higher or hail one inch in diameter or larger, the National Weather Service says. These storms can also bring heavy rain and, in some cases, flooding or flash flooding.

Once inside a shelter, stay away from windows and avoid using electrical equipment or plumbing.

Keep a battery-powered weather radio nearby in case of power loss.

Secure loose objects outside, as they can become dangerous during high winds.

Bring pets inside, and if time allows, make sure fences are secure to prevent pets from escaping or running away.

Also, remember lightning can travel several miles from a storm, so hearing thunder means you're within striking distance. The common advice from experts is "When thunder roars, go indoors."

Stay off corded phones, computers and other electrical equipment that puts you in direct contact with electricity, according to the NWS.

Avoid plumbing, including sinks, baths, faucets and even toilets, if you can.

Stay away from windows and doors, and stay off porches.

Do not lie on concrere floors or lay against concrete walls.

Ensure all windows are fully closed.

Refrain from touching radios, ignition systems, or any metal parts connected to the vehicle's exterior.

Stay inside the vehicle until at least 30 minutes after the last sound of thunder.

Stay inside . Your car acts as a Faraday cage, directing the electricity around you and protecting you.

Keep hands on your lap and away from metal surfaces .

Do not touch the radio, dashboard, or any electrical components.

Wait at least 30 minutes after the last thunder before exiting.

This weather report was generated automatically using information from the National Weather Service and a story written and reviewed by an editor.

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This article originally appeared on Greenville News: Severe thunderstorm warning issued for Greenville, Spartanburg counties