Snow, gusty winds in Pittsburgh on Wednesday night

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Snow is on the way back to the Pittsburgh area Wednesday night, coupled with gusty winds and a blast of colder air. Areas closer to Interstate 80 and typical lake effect zones will pick up higher snow totals. Thursday is an Impact Day for western Pennsylvania.Ahead of this clipper system, alerts have been issued for the following counties:Lake effect snow warning: Mercer, Venango, Clarion (4 p.m. Thursday – 1 p.m. Friday)Winter weather advisory: Lawrence, Butler, Armstrong, Indiana (4 p.m. Thursday – 7 a.m. Friday)Winter storm warning: Cambria, Somerset, Eastern Westmoreland and Fayette (7 p.m. Thursday – 7 a.m. Friday)Alerts: Get severe weather alerts for your countyInteractive radar: Track the snowLearn how to enable automatic weather alerts on the WTAE app When will the snow begin?The snow is still on track to begin along and north of I-80 Wednesday evening. After 10 or 11 p.m. it will be snowing area-wide. The majority of the snow will fall ahead of a speedy front, which will arrive during the wee hours of Thursday morning.Wind gusts of 35 to 40 mph will accompany the snow. Visibility will be impacted not just by falling but also blowing snow. When will it stop snowing?The bulk of the snow ends before you wake up Thursday. Your morning commute may still be impacted. The pavement — sidewalks, parking lots, roads, and bridges — may be slippery. Periods of blowing snow will continue.Lake-enhanced snow showers will continue areas north of Pittsburgh. Additional accumulations are expected through Thursday eveningHow much snow will we get?As clippers do, snow amounts will be light. Most of the area will pick up at least an inch by Thursday morning. Totals for the ridges and north of Route 422 will be between 2 and 3 inches. Counties along I-80 will be the “winners” — talking about several inches there as bands of lake-effect snow continue through Friday morning.Other impacts from this systemWe’ve talked about the snow and the wind. There is a third impact – a bitter blast. Much colder air will ride in on the coattails of this clipper. Brace yourself for feels like temperatures near zero Thursday morning. The bitter feeling will linger throughout the day.Download the WTAE app to stay connected with severe weather alerts and breaking news.Already have the WTAE app? Click here to learn how to get automatic storm and severe weather alerts for where you are.

Snow is on the way back to the Pittsburgh area Wednesday night, coupled with gusty winds and a blast of colder air. Areas closer to Interstate 80 and typical lake effect zones will pick up higher snow totals. Thursday is an Impact Day for western Pennsylvania.

Ahead of this clipper system, alerts have been issued for the following counties:

Lake effect snow warning: Mercer, Venango, Clarion (4 p.m. Thursday – 1 p.m. Friday)

Winter weather advisory: Lawrence, Butler, Armstrong, Indiana (4 p.m. Thursday – 7 a.m. Friday)

Winter storm warning: Cambria, Somerset, Eastern Westmoreland and Fayette (7 p.m. Thursday – 7 a.m. Friday)

12042024alerts

Hearst OwnedHearst

Winter weather alerts for Wednesday night’s snow.

When will the snow begin?

The snow is still on track to begin along and north of I-80 Wednesday evening. After 10 or 11 p.m. it will be snowing area-wide. The majority of the snow will fall ahead of a speedy front, which will arrive during the wee hours of Thursday morning.

12042024futurecast1

Hearst OwnedHearst

Widespread snow moves in after 10 p.m. 

Wind gusts of 35 to 40 mph will accompany the snow. Visibility will be impacted not just by falling but also blowing snow.

When will it stop snowing?

The bulk of the snow ends before you wake up Thursday. Your morning commute may still be impacted. The pavement — sidewalks, parking lots, roads, and bridges — may be slippery. Periods of blowing snow will continue.

12042024futurecast2

Hearst OwnedHearst

Additional lake-enhanced snow showers north of Pittsburgh Thursday.

Lake-enhanced snow showers will continue areas north of Pittsburgh. Additional accumulations are expected through Thursday evening

How much snow will we get?

As clippers do, snow amounts will be light. Most of the area will pick up at least an inch by Thursday morning. Totals for the ridges and north of Route 422 will be between 2 and 3 inches. Counties along I-80 will be the “winners” — talking about several inches there as bands of lake-effect snow continue through Friday morning.

12042024snowmap

Hearst OwnedHearst

Locally higher snow totals for areas north and east of Pittsburgh.

Other impacts from this system

We’ve talked about the snow and the wind. There is a third impact – a bitter blast. Much colder air will ride in on the coattails of this clipper. Brace yourself for feels like temperatures near zero Thursday morning. The bitter feeling will linger throughout the day.

12042024windchills

Hearst OwnedHearst

First snow, then bitter wind chills

Download the WTAE app to stay connected with severe weather alerts and breaking news.

Already have the WTAE app? Click here to learn how to get automatic storm and severe weather alerts for where you are.

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