Showers and thunderstorms will continue to threaten to interfere with outdoor plans around Pittsburgh through the remainder of this Labor Day holiday weekend.
The continued presence of humidity will set the stage for the stormy weather.
Clouds will hold temperatures to the upper 70s on Sunday before temperatures rebound to the lower 80s on Labor Day.
Sunday will likely be the most active day of the holiday weekend.
Those with picnics, parades or other outdoor activities will experience disruptions if a shower or thunderstorm arrives at an inopportune time.
One such event is the baseball game at PNC Park between the Pirates and the Cincinnati Reds. At the first sign of thunder or lightning, seek indoor shelter.
Stay alert to rapidly changing conditions by using MinuteCast™ if you are headed out for outdoor events or ballgames.
Looking ahead, the thunderstorms and humid conditions will persist through Tuesday.
A deadly earthquake struck central Italy at 3:36 a.m. local time Wednesday morning with tremors felt as far away as the capital city of Rome.
Tropical Depression Seven strengthened into Tropical Storm Gaston during Monday night with another system attempting to form near the Caribbean.
Following a fall-like start to the week, warmth and humidity will build over the northeastern United States prior to the weekend.
A budding tropical disturbance has the potential to reach Florida with gusty winds, showers and thunderstorms during Sunday and Monday.
The return of warmer and more humid air will trigger another round of strong thunderstorms across the central United States this week.
A thunderstorm passed through Livingston, MT, near Bozeman, dumping 2.5 inches of rain in 1 hour. Small roads in central mountain areas were washed out and the interstate highway was under water.
North Dakota (1991)
Huge hail caused severe damage in eastern North Dakota. Some hail was as large as six inches in diameter. Holes were punched in roofs and 16,000 acres of crops were destroyed.
The remains of Typhoon Holly brought heavy rains and flooding to south-central Alaska with heavy snow inland. (4-foot drifts at Denali National Park).