Alert archive / West Virginia / Mesoscale Discussions in 2023

Mesoscale Discussion 1978

August 12, 2023Allegany County, Garrett County, Washington County, Maryland; 5 counties in Pennsylvania; 17 counties in West Virginia

The Storm Prediction Center issued this mesoscale discussion at Aug 12, 2023, 10:12 PM EDT for Allegany County, Garrett County, Washington County, Maryland; 5 counties in Pennsylvania; 17 counties in West Virginia. It was in force for 93 min.

The area

The outline as issued.

The facts

Issued: Aug 12, 2023, 10:12 PM EDT (02:12 UTC)
Expired: Aug 12, 2023, 11:45 PM EDT
In force: 93 min
Issued by: the Storm Prediction Center
Concerning: Severe thunderstorm watch 639

All 25 counties

Allegany County, MD, Garrett County, MD, Washington County, MD, Bedford County, PA, Fayette County, PA, Franklin County, PA, Fulton County, PA, Somerset County, PA, Barbour County, WV, Berkeley County, WV, Doddridge County, WV, Gilmer County, WV, Grant County, WV, Hampshire County, WV, Hardy County, WV, Harrison County, WV, Lewis County, WV, Marion County, WV, Mineral County, WV, Monongalia County, WV, Morgan County, WV, Preston County, WV, Taylor County, WV, Tucker County, WV, Upshur County, WV

The radar

The Pittsburgh radar (KPBZ), 156 km from the middle of the area, began a volume at 02:14 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 12, 8:06 PM EDT	Severe Thunderstorm Watch	SPC	Allegany, Garrett, Washington	4 hr
Aug 12, 9:02 PM EDT	Mesoscale Discussion	SPC	Bucks, Carbon, Lehigh, Monroe, Montgomery, Northampton and 1 more	88 min

Nearby

Mesoscale Discussions in West Virginia, 2023 Mesoscale Discussions in Pennsylvania, 2023 Mesoscale Discussions in Maryland, 2023 Every mesoscale discussion in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.