Alert archive / North Carolina / River Flood Warnings in 2020

River Flood Warning 31, NWS Blacksburg, VA

May 19, 2020Watauga County, North Carolina

NWS Blacksburg, VA issued this river flood warning at May 19, 2020, 11:26 PM EDT for Watauga County, North Carolina. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: May 19, 2020, 11:26 PM EDT (03:26 UTC)
Expired: May 20, 2020, 7:58 AM EDT
In force: 9 hr
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: Minor

County Watauga County, NC

The radar

The Knoxville radar (KMRX), 153 km from the middle of the area, began a volume at 03:28 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 Watauga River near Sugar Grove (SGWN7). The gauge peaked at 8.82 ft at May 21, 2020, 2:00 AM EDT.

Action stage: 5 ft
Minor stage: 6 ft
Moderate stage: 16 ft
Major stage: 20 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 03479000, 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 19, 7:26 PM EDT, 4 hours earlier.

Area forecast discussion, May 19, 7:26 PM EDT, 4 hours before

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Hazardous weather outlook, May 19, 2:28 PM EDT, 8 hours 58 minutes before

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In the hours before

Local storm report, May 19, 8:54 PM EDT, 2 hours 32 minutes before

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Local storm report, May 19, 8:59 PM EDT, 2 hours 27 minutes before

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Local storm report, May 19, 9:08 PM EDT, 2 hours 18 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, May 19, 9:31 PM EDT, 1 hour 55 minutes before

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      <h1 id="headline">This service is currently unavailable.</h1>
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      <p id="message2">
        Please try again in a few minutes.
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      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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Local storm report, May 19, 9:36 PM EDT, 1 hour 50 minutes before

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      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
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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 20, 4:27 PM EDT	River Flood Warning	RNK	Campbell, Pittsylvania	4 days
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 North Carolina, 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.