Severe Thunderstorm Warning Issued for Mercer and Lawrence Counties, PA
This alert is no longer in effect.
NOAA issued it on May 17, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Pittsburgh has issued a Severe Thunderstorm Warning for Mercer County and northern Lawrence County until 8:45 PM EDT on May 9.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Western Pennsylvania
- Issued
- May 17, 2026
- Issuing authority
- NWS Pittsburgh PA
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Western Pennsylvania.
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service in Pittsburgh PA. The alert is effective from May 9 at 7:52 PM EDT until May 9 at 8:45 PM EDT.
Affected Areas
The warning covers Mercer County in northwestern Pennsylvania and northern Lawrence County in western Pennsylvania. Locations impacted include New Castle, Hermitage, Sharon, Grove City, Sharpsville, Farrell, New Wilmington, Oakwood, New Castle Northwest, Mercer, Pulaski, Stoneboro, New Bedford, West Middlesex, Plain Grove Township, Clark, Wheatland, Fredonia, Harlansburg and Jackson Center.
What You Should Do
Seek shelter inside a well-built structure and stay away from windows. This storm is capable of producing damaging winds.
Expected Conditions
At 7:52 PM EDT, a severe thunderstorm was located 13 miles west of Sharon, moving east at 35 mph. Hazards include 60 mph wind gusts and small hail.
Timeline
The warning is in effect until 8:45 PM EDT on May 9, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (991 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 17, 2026.
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