MEMPHIS, Tenn. - A rare and dangerous High Risk (5/5) for severe weather has been issued for parts of the Mid-South. This is the highest risk level issued by the

The National Weather Service in Wilmington issued a severe Thunderstorm warning for northeastern Franklin County Wednesday morning. The storm could bring 60 mph winds and half-dollar-sized hail, potentially damaging vehicles, according to the warning.

A severe thunderstorm warning has been issued for counties across western Pennsylvania on Wednesday afternoon.

A severe thunderstorm warning was issued by the National Weather Service in Norman at 7:52 p.m. on Tuesday, April 1.

WATCH: Severe thunderstorm warnings and tornado warnings pepper the Mid-South ahead of main line of extreme weather

Severe thunderstorms are likely to produce heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Locations which may be affected include Townsville, Collinsville,

Strong Winds Strong winds of 55 mph or more can cause significant damage even though no tornado is present. "Downbursts" are columns of air that slam to the earth and spread high winds in many directions. Downbursts can be just as damaging as tornadoes; if such conditions are present, take the same precautions as you would for a tornado.

In Arkansas, the National Weather Service had issued a tornado emergency, the highest warning possible, as a "large and destructive tornado” hit Lake City, Arkansas, and surrounding areas in the northeastern part of the state in the evening.