Warmth will hold around Pittsburgh through Monday, but the return of much colder air is on the horizon.
The weekend will end with the warmest air so far this year pouring across southwestern Pennsylvania, boosting temperatures past the 80-degree mark.
Dry weather and some sunshine will compliment the warmth.
Temperatures will still rise well into the 70s on Monday despite some more clouds filtering overhead and a couple of showers and thunderstorms arriving in the afternoon.
Chilly air plunging into the Plains will swing eastward in the upcoming days.
Steadier rain will follow for Monday night in Pittsburgh as the cold blast approaches, leading to a dramatically colder Tuesday.
Tuesday's expected high of 45 F is likely to occur prior to daybreak with temperatures then falling into the 30s. The rain may even mix with or end as wet snow.
Temperatures will drop into the 20s Tuesday night, spelling bad news for those who planted sensitive vegetation early.
More seasonable high temperatures should follow for later in the week.
The threat of severe weather will return to the south-central United States this weekend.
A massive wildfire burning in Alberta, Canada, moved through the city of Fort McMurray, forcing the entire city to be evacuated.
A system with rain and thunderstorms will bring both good and bad news to the western United States later this week.
Plenty of warmth and sunshine will be in the forecast this Saturday as the 142nd running of the Kentucky Derby takes place at famed Churchill Downs in Louisville this Saturday.
As millions prepare to celebrate Mother’s Day on Sunday, May 8, rain and severe storms threaten to disrupt outdoor activities and travel plans.
While thunderstorms produced deadly flooding across portions of the United States this week, destructive wildfires spread rapidly and ravaged Fort McMurrary, Alberta.
Omaha, NE (1975)
Massive tornado killed 3 people and injured 133 while causing 150 million dollars worth of damage. Tornado cut a swath 10 miles long and one-quarter of a mile wide through the industrial and residential areas of west-central Omaha before lifting over the northern section of the city. Most costly U.S. tornado to date.
Thunderstorms rake over Nebraska and Kansas with golf ball-sized hail, wind gusts close to 90 mph at Superior, NE, and 3-1/2 inches of rain at Kensaw, NE.
Sheridan Lake, ND (1984)
Lightning struck a boat out on the water, killing two occupants. A life vest was torn to bits by the powerful bolt.