Alert archive / Virginia / Flood Watches in 2018

Flood Watch 5, NWS Blacksburg, VA

December 20, 201833 counties in Virginia; 9 counties in North Carolina; Greenbrier County, Monroe County, Summers County, West Virginia

NWS Blacksburg, VA issued this flood watch at Dec 20, 2018, 3:27 AM EST for 33 counties in Virginia; 9 counties in North Carolina; Greenbrier County, Monroe County, Summers County, West Virginia. It took effect at Dec 20, 2018, 12:00 PM EST. It was in force for 28 hr.

The area

The counties it named.

The facts

Issued: Dec 20, 2018, 3:27 AM EST (08:27 UTC)
In effect from: Dec 20, 2018, 12:00 PM EST
Expired: Dec 21, 2018, 4:00 PM EST
In force: 28 hr
Issued by: NWS Blacksburg, VA
Flood severity: None

All 45 counties

Alleghany County, NC, Ashe County, NC, Caswell County, NC, Rockingham County, NC, Stokes County, NC, Surry County, NC, Watauga County, NC, Wilkes County, NC, Yadkin County, NC, Alleghany County, VA, Amherst County, VA, Appomattox County, VA, Bath County, VA, Bedford County, VA, Botetourt County, VA, Buckingham County, VA, Campbell County, VA, Carroll County, VA, Charlotte County, VA, City of Buena Vista, VA, City of Covington, VA, City of Danville, VA, City of Galax, VA, City of Lexington, VA, City of Lynchburg, VA, City of Martinsville, VA, City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Floyd County, VA, Franklin County, VA, Giles County, VA, Grayson County, VA, Halifax County, VA, Henry County, VA, Montgomery County, VA, Patrick County, VA, Pittsylvania County, VA, Pulaski County, VA, Roanoke County, VA, Rockbridge County, VA, Greenbrier County, WV, Monroe County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 20 km from the middle of the area, began a volume at 08:33 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.

What forecasters said that day

The local office's own words before this flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this flood watch went out at Dec 20, 12:03 AM EST, 3 hours 24 minutes earlier.

Area forecast discussion, Dec 20, 12:03 AM EST, 3 hours 24 minutes before

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Hazardous weather outlook, Dec 19, 3:04 PM EST, 12 hours 23 minutes before

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The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 20, 3:04 PM EST	River Flood Warning	RNK	Pittsylvania, City of Danville	71 hr
Dec 20, 3:04 PM EST	River Flood Warning	RNK	Halifax	70 hr
Dec 20, 3:04 PM EST	River Flood Warning	RNK	Halifax	4 days
Dec 20, 4:54 PM EST	Areal Flood Advisory	RNK	Carroll, Floyd, Franklin, Grayson, Patrick, City of Galax	6 hr

Nearby

Flood Watches in Virginia, 2018 Flood Watches in North Carolina, 2018 Flood Watches in West Virginia, 2018 Every flood watch in 2018

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.