Alert archive / Virginia / Mesoscale Discussions in 2020

Mesoscale Discussion 6

January 7, 20204 states

The Storm Prediction Center issued this mesoscale discussion at Jan 7, 2020, 12:29 PM EST for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued: Jan 7, 2020, 12:29 PM EST (17:29 UTC)
Expired: Jan 7, 2020, 2:30 PM EST
In force: 2 hr
Issued by: the Storm Prediction Center

All 35 counties

Baltimore County, MD, Carroll County, MD, City of Baltimore, MD, Frederick County, MD, Howard County, MD, Montgomery County, MD, Washington County, MD, Adams County, PA, Cumberland County, PA, Franklin County, PA, Fulton County, PA, Huntingdon County, PA, Juniata County, PA, Perry County, PA, York County, PA, Arlington County, VA, City of Alexandria, VA, City of Fairfax, VA, City of Falls Church, VA, City of Manassas, VA, City of Manassas Park, VA, City of Winchester, VA, Clarke County, VA, Culpeper County, VA, Fairfax County, VA, Fauquier County, VA, Frederick County, VA, Loudoun County, VA, Madison County, VA, Prince William County, VA, Rappahannock County, VA, Warren County, VA, Berkeley County, WV, Jefferson County, WV, Morgan County, WV

The radar

The Sterling radar (KLWX), 72 km from the middle of the area, began a volume at 17:32 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
Jan 7, 8:49 AM EST	Mesoscale Discussion	SPC	Allegany, Garrett	4 hr

Nearby

Mesoscale Discussions in Virginia, 2020 Mesoscale Discussions in Pennsylvania, 2020 Mesoscale Discussions in Maryland, 2020 Every mesoscale discussion in 2020

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.