UPDATE 6:30 p.m.
Areas of fog will slow the morning commute and reduce visibility Wednesday.
Moisture left in the wake of strong to severe storms will set the stage for fog to form before sunrise Wednesday.
Use low beams in dense fog and allow extra stopping distance between you and the car in front of you.
Cooler, less humid air will move in through the day with a mix of clouds and sunshine.
UPDATE 4:15 p.m.
A Tornado Warning has been issued for Monongalia and Greene counties.
TORNADO WARNING now includes Fayette County. ------------ TORNADO WARNING issued for Greene County. WPXI Stephen Cropper has live coverage RIGHT NOW. http://on.wpxi.com/2inTiXa INTERACTIVE RADAR: http://on.wpxi.com/1pCioPY
Posted by WPXI-TV Pittsburgh on Tuesday, August 22, 2017
UPDATE 3:25 p.m.:
Another Severe Thunderstorm Warning has been issued for Westmoreland County until 4:00 p.m.
Severe Thunderstorm Warning for Westmoreland County until 4:00pm. https://t.co/5TuINuFSOx | https://t.co/jMjzNL1qY3
— WPXI (@WPXI) August 22, 2017
Also due to Tuesday's storms, Kennywood will be closing at 4 p.m. and the year's final Fall Fantasy Parade has been cancelled.
In the interest of guest & performer safety, we are closing at 4 pm and have canceled tonight's Fall Fantasy Parade. https://t.co/FoAtF4KYja
— Kennywood Park (@Kenny_Kangaroo) August 22, 2017
UPDATE 2:38 p.m.:
A Severe Thunderstorm Warning was issued for Indiana County until 3:15 p.m. The warning for Jefferson County was extended until 3:15 p.m.
Severe Thunderstorm Warning for Indiana and Jefferson County until 3:15pm. https://t.co/5TuINuFSOx | https://t.co/jMjzNL1qY3
— WPXI (@WPXI) August 22, 2017
UPDATE 2:07 p.m.:
A Severe Thunderstorm Warning was issued for eastern Allegheny County and part of Westmoreland County until 2:45 p.m.
ALERT: Westmoreland-severe storm moving your way. Damaging winds, heavy rain, lightning pic.twitter.com/fTPlECAel7
— Stephen Cropper (@WPXICropper) August 22, 2017
UPDATE 1:55 p.m.:
A Severe Thunderstorm Warning was issued for Clarion, Forest and Jefferson counties until 2:15 p.m.
Severe Thunderstorm Warning for Clarion, Forest, and Jefferson County until 2:45pm. https://t.co/5TuINuFSOx | https://t.co/jMjzNL1qY3
— WPXI (@WPXI) August 22, 2017
UPDATE 1:36 p.m.:
A Severe Thunderstorm Warning was issued for Armstrong, Butler and Clarion counties until 2:15 p.m.
SEVERE T-STORM WARNING until 2:15 pm
— Scott Harbaugh (@WPXIScott) August 22, 2017
60+ mph winds, torrential rain. pic.twitter.com/sZiEaJBKTp
UPDATE 1:25 p.m.:
A Severe Thunderstorm Warning was issued for Allegheny and Washington counties until 2 p.m.
Severe Thunderstorm Warning for Allegheny and Washington County until 2:00pm. https://t.co/5TuINuFSOx | https://t.co/jMjzNL1qY3
— WPXI (@WPXI) August 22, 2017
UPDATE 1:41 p.m.:
This warning was extended until 2:15 p.m.
UPDATE: 1:05 p.m.:
A Severe Thunderstorm Warning was issued for Beaver and Lawrence counties until 1:45 p.m.
Severe Thunderstorm Warning for Beaver and Lawrence County until 1:45pm. https://t.co/5TuINuFSOx | https://t.co/jMjzNL1qY3
— WPXI (@WPXI) August 22, 2017
UPDATE: 12:43 p.m.:
A Severe Thunderstorm Watch was issued for our entire viewing area until 9 p.m. Tuesday.
Meteorologist Scott Harbaugh and Chief Meteorologist Stephen Cropper will track the storms as they move through. Stay with Channel 11 News for the any changes to the forecast.
Strong storms will roll across the Western Pa. for the evening commute.
A cold front pushing across the Ohio Valley will trigger a couple of rounds of showers and storms capable of producing very heavy rain and gusty winds.
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The first line of thunderstorms will approach the area between 2 and 4 p.m. Showers and thunderstorms will continue on and off through midnight tonight.
Some of the stronger storms will create 40-plus mph winds that could topple small trees and power lines. Large hail also will be possible in a couple of the storms.
Storms will quiet down before midnight with much cooler, fall-like air working its way into the area Wednesday and sticking around for the rest of the week.
Cox Media Group