Unionville, PA 15066 Weather

This Hazardous Weather Outlook is for east central Ohio, western Pennsylvania, and northern West Virginia.

Day one

Today and tonight.

No hazardous weather is expected at this time.

Days two through seven

Saturday through Thursday.

No hazardous weather is expected at this time.

Spotter information statement

Spotter activation is not expected at this time.

What has changed

Updated for the 12Z TAF issuance.

Key messages

1) Dry weather continues into the weekend

2) Minimal rain chances early next week, with higher chances by mid to late week

Discussion

KEY MESSAGE 1: A weak cold front will continue to drop southeast across the Upper Ohio Valley region this morning, though no rain is expected with a lack of deep layer moisture. The main impact of this front will be increased cloud cover along the front, with scattered stratocu in cold advection through the afternoon. Highs today should also be around 10 degrees below Thursday's readings.

Dry weather is then expected to continue through the weekend as surface high pressure builds across the region. Mid and high level clouds should gradually increase through this period ahead of an approaching shortwave trough across the Midwest. Temperatures should moderate again by Sunday, with readings around 10 degrees above average.

KEY MESSAGE 2: A weakening trough is expected to track slowly east across the Upper Ohio Valley region Sunday night into Monday. A lack of moisture should be the main limiting factor on seeing any rain with this system, though slight chances POPs were maintained. Model ensembles indicate ridging will then build across the Upper Ohio Valley region through early Wednesday, ahead of a deepening central CONUS trough. This should maintain dry weather and warm temperatures across the area. Rain chances are expected to begin to increase by mid to late week as the trough slowly approaches the region, though uncertainty remains in the strength and forward speed of the trough.

Aviation

Patchy MVFR CIGs continue early this morning in the wake of a weak cold front. Behind this front, increasing dry air is already beginning to fracture MVFR stratocu and VFR is likely to quickly return to all ports after sunrise. SCT stratocu likely linger through the remainder of the day in cold advection and NW flow. NWerly winds are expected to be sustained near 10 kts across much of the region today, with gusts up to 20 kts possible along the eastern ridges. Wind and clouds diminish this evening as high pressure builds in.

Outlook: Outside of any early morning river valley fog on Saturday, VFR is expected into early next week. A disturbance will likely bring an increase in mid level clouds Sunday night and Monday, with only a slight chance of rain.

Watches, warnings and advisories

PA: None. OH: None. WV: None.