Alert archive / Tennessee / Flash Flood Watches in 2020

Flash Flood Watch 9, NWS Morristown, TN

October 28, 202033 counties in Tennessee; 7 counties in Virginia; Cherokee County, Clay County, North Carolina

NWS Morristown, TN issued this flash flood watch at Oct 28, 2020, 3:52 AM EDT for 33 counties in Tennessee; 7 counties in Virginia; Cherokee County, Clay County, North Carolina. It took effect at Oct 28, 2020, 8:00 PM EDT. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued: Oct 28, 2020, 3:52 AM EDT (07:52 UTC)
In effect from: Oct 28, 2020, 8:00 PM EDT
Expired: Oct 29, 2020, 9:48 AM EDT
In force: 14 hr
Issued by: NWS Morristown, TN
Flood severity: None

All 42 counties

Cherokee County, NC, Clay County, NC, Anderson County, TN, Bledsoe County, TN, Blount County, TN, Bradley County, TN, Campbell County, TN, Carter County, TN, Claiborne County, TN, Cocke County, TN, Grainger County, TN, Greene County, TN, Hamblen County, TN, Hamilton County, TN, Hancock County, TN, Hawkins County, TN, Jefferson County, TN, Johnson County, TN, Knox County, TN, Loudon County, TN, Marion County, TN, McMinn County, TN, Meigs County, TN, Monroe County, TN, Morgan County, TN, Polk County, TN, Rhea County, TN, Roane County, TN, Scott County, TN, Sequatchie County, TN, Sevier County, TN, Sullivan County, TN, Unicoi County, TN, Union County, TN, Washington County, TN, City of Bristol, VA, City of Norton, VA, Lee County, VA, Russell County, VA, Scott County, VA, Washington County, VA, Wise County, VA

The radar

The Knoxville radar (KMRX), 27 km from the middle of the area, began a volume at 07:54 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 flash flood watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Morristown, TN wrote its last area forecast discussion before this flash flood watch went out at Oct 28, 1:12 AM EDT, 2 hours 40 minutes earlier.

Area forecast discussion, Oct 28, 1:12 AM EDT, 2 hours 40 minutes before

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Hazardous weather outlook, Oct 27, 3:34 PM EDT, 12 hours 18 minutes before

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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 28, 10:03 AM EDT	River Flood Warning	MRX	Cocke	44 hr
Oct 28, 10:47 AM EDT	High Wind Watch	MRX	Blount, Carter, Cocke, Greene, Johnson, Monroe and 3 more	5 hr
Oct 28, 10:47 AM EDT	Wind Advisory	MRX	Bledsoe, Blount, Bradley, Carter, Cocke, Greene and 12 more	28 hr
Oct 28, 11:09 AM EDT	River Flood Warning	MRX	Bledsoe, Marion, Sequatchie	45 hr
Oct 28, 11:17 AM EDT	River Flood Warning	MRX	Hamilton	23 hr
Oct 28, 2:58 PM EDT	Tropical Storm Warning	MRX	Monroe, Polk	24 hr
Oct 28, 3:24 PM EDT	High Wind Warning	MRX	Blount, Carter, Cocke, Greene, Johnson, Sevier and 1 more	21 hr

Nearby

Flash Flood Watches in Tennessee, 2020 Flash Flood Watches in Virginia, 2020 Flash Flood Watches in North Carolina, 2020 Every flash flood watch 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.