Alert archive / Virginia / River Flood Warnings in 2020

River Flood Warning 44, NWS Blacksburg, VA

May 20, 2020Campbell County, Pittsylvania County, Virginia

NWS Blacksburg, VA issued this river flood warning at May 20, 2020, 4:27 PM EDT for Campbell County, Pittsylvania County, Virginia. It took effect at May 21, 2020, 3:13 AM EDT. It was in force for 4 days.

The area

The counties it named.

The facts

Issued: May 20, 2020, 4:27 PM EDT (20:27 UTC)
In effect from: May 21, 2020, 3:13 AM EDT
Expired: May 25, 2020, 2:00 AM EDT
In force: 4 days
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: Minor

Counties Campbell County, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 91 km from the middle of the area, began a volume at 20:26 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 river

Written for the forecast point Roanoke River at Altavista (ALTV2). The gauge peaked at 23.59 ft at May 22, 2020, 10:00 AM EDT.

Action stage: 16 ft
Minor stage: 18 ft
Moderate stage: 24 ft
Major stage: 29 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02060500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood warning 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 river flood warning went out at May 20, 3:19 PM EDT, 1 hour 8 minutes earlier.

Area forecast discussion, May 20, 3:19 PM EDT, 1 hour 8 minutes before

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Hazardous weather outlook, May 20, 3:31 PM EDT, 56 minutes before

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In the hours before

Local storm report, May 20, 12:42 PM EDT, 3 hours 45 minutes before

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Local storm report, May 20, 12:50 PM EDT, 3 hours 37 minutes before

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Local storm report, May 20, 2:50 PM EDT, 1 hour 37 minutes before

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Local storm report, May 20, 2:55 PM EDT, 1 hour 32 minutes before

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Local storm report, May 20, 3:06 PM EDT, 1 hour 21 minutes before

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Local storm report, May 20, 3:15 PM EDT, 1 hour 12 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
May 20, 1:35 AM EDT	Areal Flood Advisory	RNK	Grayson	4 hr
May 20, 2:20 AM EDT	Areal Flood Advisory	RNK	Bland, Carroll, Smyth, Tazewell, Wythe	3 hr
May 20, 3:49 AM EDT	Areal Flood Advisory	RNK	Pulaski, City of Radford	3 hr
May 20, 5:10 AM EDT	Areal Flood Advisory	RNK	Bland, Craig, Giles	4 hr
May 20, 5:17 AM EDT	Areal Flood Advisory	RNK	Floyd, Franklin, Henry, Montgomery, Patrick, Roanoke and 4 more	4 hr
May 20, 9:50 AM EDT	River Flood Warning	RNK	Roanoke, City of Roanoke, City of Salem	63 hr
May 20, 10:59 AM EDT	River Flood Warning	RNK	Pittsylvania	52 hr
May 20, 10:59 AM EDT	River Flood Warning	RNK	Campbell, Charlotte, Halifax	4 days
May 20, 10:59 AM EDT	River Flood Warning	RNK	Charlotte, Halifax	21 days
May 20, 10:59 AM EDT	River Flood Warning	RNK	Pittsylvania, City of Danville	4 days
May 20, 10:59 AM EDT	River Flood Warning	RNK	Halifax	6 days
May 20, 10:59 AM EDT	River Flood Warning	RNK	Halifax	7 days
May 20, 11:27 AM EDT	Areal Flood Advisory	RNK	Floyd, Franklin, Henry, Montgomery, Patrick, Pulaski and 5 more	4 hr
May 20, 11:28 AM EDT	River Flood Warning	RNK	Carroll, Grayson, City of Galax	48 hr
May 20, 11:28 AM EDT	River Flood Warning	RNK	Pulaski, Wythe	71 hr
May 20, 11:28 AM EDT	River Flood Warning	RNK	Montgomery, Pulaski, City of Radford	63 hr
May 20, 11:28 AM EDT	River Flood Warning	RNK	Giles	69 hr
May 20, 1:18 PM EDT	Areal Flood Warning	RNK	Montgomery, Roanoke	12 hr
May 20, 3:28 PM EDT	Areal Flood Warning	RNK	Carroll, Floyd, Franklin, Henry, Montgomery, Patrick and 6 more	12 hr
May 20, 3:47 PM EDT	Areal Flood Warning	RNK	Grayson	9 hr
May 19, 11:26 PM EDT	River Flood Warning	RNK	Watauga	9 hr
May 20, 10:59 AM EDT	River Flood Warning	RNK	Rockingham	67 hr
May 20, 4:53 PM EDT	Areal Flood Advisory	RNK	Watauga	4 hr
May 20, 7:30 PM EDT	Areal Flood Advisory	RNK	Surry, Wilkes, Yadkin	5 hr

Nearby

River Flood Warnings in Virginia, 2020 Every river flood warning 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; the gauge from the NWS water service and the USGS.