Following Friday's deadly super derecho, another round of nasty thunderstorms will threaten parts of the Midwest and mid-Atlantic into Saturday evening.
Friday's super derecho, a widespread and long-lived violent thunderstorm complex, left a trail of destruction and power outages from northern Indiana to the southern mid-Atlantic coast.
Many of the same areas which were affected on Friday will have to endure yet another round of gusty thunderstorms into this evening. While clusters of violent thunderstorms will develop, another far-reaching land hurricane is not expected.
Locations which could be impacted this afternoon include Charleston, W. Va., Baltimore, Md., Washington, D.C., Dover, Del., and Richmond, Va.
The danger also extends back to central Illinois, including the city of Champaign.
Similar to Friday's storms, very damaging winds will be the primary threat. Hail and even an isolated tornado are also possible with the strongest storms.
In most cases, winds will be upwards of 50-60 mph into this evening. The strongest storms will be capable of producing winds in excess of 70 mph.
Winds of this magnitude will easily be capable of bringing down trees and power lines, especially trees weakened during Friday's severe weather. Those with loose outdoor furniture are advised to bring them indoors or properly secure them to the ground.
The blazing heat and humidity ahead of these storms will once again help fuel these powerful storms as they track towards the south and east.
The severe weather threat will end by late tonight, but yet another round of thunderstorms will rattle the Midwest and mid-Atlantic to close out the weekend.
Hurricane Ignacio may enhance showers and stir rough surf for the Hawaiian Islands as it approaches next week.
After Erika brings heavy rain and locally gusty winds from Hispaniola eastern Cuba into Friday night, the system will move toward the Bahamas, the Keys and South Florida this weekend.
As many as seven tropical cyclones were churning throughout the world this past week, while smoke from wildfires across the Pacific Northwest led to poor air quality across the region.
Heat and humidity will return to Harrisburg this weekend and hang on into next week.
Heat will linger in Eastern Europe for much of the fall season; meanwhile, the British Isles and northwestern Europe can expect a stormy end to the season.
Colorado Springs, CO (1978)
Hail 6 inches deep.
Rochester, MN (1979)
2.73 inches of rain fell in 50 minutes making this the wettest August on record. (9.52 inches of rain so far this month). The heavy downpour flooded the streets of Rochester, stranding about 1,500 cars.
A five-state tornado outbreak in Nebraska, Kansas, Wyoming, Iowa and Missouri occurred on this date. In all, 20 tornadoes were reported. Nine were in Iowa. One near Farragut, IA, in the extreme SW corner of the state, caused several fatalities and numerous injuries.