Severe weather threat to last throughout Tuesday in Southwest PA

Most of Pittsburgh and Southwestern Pennsylvania is under a thunderstorm watch until Tuesday evening with other severe watching and warnings posted as well.

Heavy storms were moving through the area Tuesday afternoon just north of Pittsburgh.

Latest weather here.

A Flash Flood Warning has been issued for Allegheny, Armstrong, Beaver, Butler and Westmoreland until 6:20 p.m.

Up to two inches of rain have fallen in some areas, according to the National Weather Service

Thunderstorm Warnings are also in effect in parts of the region.

A Tornado Warning was issued for parts of Mercer and Venango Counties until 2:15 p.m.

AccuWeather tells KDKA Radio the threat of damaging winds, hail and downpours could exist until late Tuesday night.

The good news, cooler air will make its way through the Pittsburgh area beginning Wednesday.