PITTSBURGH — There will be fog and drizzle across much of the area Monday with steady rain or rain and snow mix south. Freezing rain will be a concern in the mountains.
UPDATE Monday 4:55 p.m.: A Flood Watch has been issued for the entire area as 1" to 2" rain is possible through late Tuesday.
The soaked ground means runoff into creeks, streams and rivers.
UPDATE Monday 11:44 a.m.: Rain will spread back into the Pittsburgh area for the afternoon commute Monday. Rain may mix with snow or freezing rain in areas near and north of I-80 and in the ridges and mountains through Tuesday.
Winter Weather Advisories are up for the mountains and I-80 corridor through Tuesday afternoon. A Winter Storm Warning is in effect for Somerset County until Tuesday afternoon. Ice accumulations of 0.25 to 0.50 inches are possible in the mountains with lesser amounts near I-80.
Pockets of moderate to heavy rain will around Tuesday and Tuesday night leading to another risk of flooding along our rivers.
Snow showers will be around for your Wednesday morning commute.
UPDATE Monday 10:30 a.m.: Heavy rain this week could lead to rising water levels in area creeks and streams.
UPDATE Monday 9:30 a.m.: Icing Monday night and Tuesday could bring down trees and power lines in the mountains.
UPDATE Monday 8:15 a.m.: Icy conditions have forced the closure of Potomac Avenue in Pittsburgh's Banksville neighborhood.
UPDATE Monday 3:30 a.m.: Expect icy conditions on neighborhood and side streets Monday morning as a mix of snow and light freezing rain have left many untreated roads slick.
Spotty areas of light snow, rain and freezing rain will continue for the morning hours. Rain will pick up later in the day, with a mix of freezing rain and snow still possible north of Route 422 and in the mountains.
Winter Weather Advisories are up for the mountains and Interstate 80 corridor through Tuesday.
Rain Monday night and Tuesday could be heavy, with flooding becoming a concern in many areas that had high water issues late last week and over the weekend.
Stay with Severe Weather Team 11 as we keep you updated on constant changes for your neighborhood.
UPDATE 11 p.m.: Light snow will taper off just past midnight.
Untreated roads can be slippery so caution driving during the morning drive time. There can be a mix of snow, freezing rain and rain through mid morning mainly south along and near I-70.
Widespread rain including heavy downpours will develop Monday afternoon and evening and will continue through Tuesday in the southern counties. Flooding is possible in some locations.
At the same time in the northern counties, it will be cold enough for a mix of rain and snow and perhaps some freezing rain.
This system will move out altogether on Wednesday, ending with just a few flurries mainly north as colder air briefly moves in.
This forecast will change as the system develops. Stay with our team of meteorologists for updates, and check back often for the latest on Channel 11 News.
UPDATE 9:34 p.m. - A car slid down Oakridge Street in Brookline, took out a gate and ended up between two houses.
UPDATE 9:34 p.m. - Several crashes are being reported, including this one on Capital Avenue in Brookline.
UPDATE 8 p.m. - The Boulevard of the Allies in downtown Pittsburgh is snow covered.
UPDATE 7:03 p.m. - A stronger band of snow is moving east through the area right now.
A quick coating could limit visibility and cause slick conditions.
A flood advisory remains in effect for the Ohio River in Allegheny County until further notice.
The Mon Wharf will be closed again on Monday until further notice, the Public Parking Authority of Pittsburgh announced Sunday.
A Winter Weather Advisory goes into effect Monday morning at 11 a.m. for Mercer, Clarion, Venango and Indiana counties.
Severe Weather Team 11 is tracking a complicated southern system that is currently forecast to push light snow into the area around sunset Sunday. Based on the most recent data, light snow will continue into Monday morning.
Snow may complicate the morning commute Monday, and cold road temperatures will allow even just a coating of snow to create icy spots. Recent heavy rain has washed away any residual ice treatment left on roads and sidewalks, so plan now for possible delays.
Snow will mix with and change to rain in southern counties, limiting snow amounts. A wintry mix and straight snow will persist in northern locations, allowing for higher snow amounts there through Monday afternoon.
As always, this forecast will change as the system develops and moves closer to our area through the weekend. Stay with our team of meteorologists for updates, and check back often for the latest on Channel 11 News.
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