Alert archive / Tennessee / Flash Flood Warnings in 2023

Flash Flood Warning 25, NWS Morristown, TN

August 3, 20234 counties in Tennessee

NWS Morristown, TN issued this flash flood warning at Aug 3, 2023, 4:34 AM EDT for 4 counties in Tennessee. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 3, 2023, 4:34 AM EDT (08:34 UTC)
Expired
Aug 3, 2023, 6:30 AM EDT
In force
116 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Flood severity
None

Counties Claiborne County, TN, Grainger County, TN, Hancock County, TN, Hawkins County, TN

The radar

The Knoxville radar (KMRX), 30 km from the middle of the area, began a volume at 08:35 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 warning 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 warning went out at Aug 3, 3:55 AM EDT, 39 minutes earlier.

Area forecast discussion, Aug 3, 3:55 AM EDT, 39 minutes before
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Hazardous weather outlook, Aug 3, 4:27 AM EDT, 7 minutes before
Hazardous Weather Outlook
National Weather Service Morristown TN
427 AM EDT Thu Aug 3 2023

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-040830-
Cherokee-Clay-Scott TN-Campbell-Claiborne-Hancock-Hawkins-
Sullivan-Johnson-Morgan-Anderson-Union-Grainger-Hamblen-
Northwest Cocke-Cocke Smoky Mountains-Northwest Greene-
Southeast Greene-Washington TN-Unicoi-Northwest Carter-
Southeast Carter-Roane-Loudon-Knox-Jefferson-Northwest Blount-
Blount Smoky Mountains-North Sevier-Sevier Smoky Mountains-
Sequatchie-Bledsoe-Rhea-Meigs-McMinn-Northwest Monroe-
Southeast Monroe-Marion-Hamilton-Bradley-West Polk-East Polk-Lee-
Wise-Scott VA-Russell-Washington VA-
427 AM EDT Thu Aug 3 2023 /327 AM CDT Thu Aug 3 2023/

This Hazardous Weather Outlook is for portions of southwest North
Carolina...east Tennessee and southwest Virginia.

.DAY ONE...Today and Tonight

Multiple rounds of showers and thunderstorms are expected today
and tonight. Some isolated flooding will be possible, especially
for areas that see repeated showers and thunderstorms. This could
occur anywhere, but the better chances will likely be north of the
I-40 corridor. Additionally, isolated damaging winds cannot be
ruled out with any stronger storm this afternoon, mainly for
portions of the southern Tennessee Valley and southern Cumberland
Plateau.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not needed at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 3, 3:24 AM EDTAreal Flood AdvisoryMRXClaiborne, Grainger, Hancock, Hawkins70 min
Aug 3, 6:35 AM EDTAreal Flood AdvisoryMRXCocke, Greene, Hamblen, Hawkins, Jefferson7 hr
Aug 3, 9:37 AM EDTAreal Flood AdvisoryMRXCocke, Greene, Unicoi, Washington4 hr
Aug 3, 3:02 PM EDTAreal Flood AdvisoryMRXAnderson, Blount, Knox, Loudon, Roane, Sevier118 min
Aug 3, 3:02 PM EDTAreal Flood AdvisoryMRXCocke, Grainger, Greene, Hamblen, Hawkins, Jefferson4 hr
Aug 3, 3:33 PM EDTFlash Flood WarningMRXCocke, Greene, Hamblen, Jefferson4 hr
Aug 3, 4:21 PM EDTFlash Flood Warning Considerable damage threatMRXGreene3 hr
Aug 3, 4:31 PM EDTAreal Flood AdvisoryMRXGreene, Hawkins, Sullivan, Washington3 hr
Aug 3, 7:34 PM EDTAreal Flood WarningMRXGreene2 hr

Nearby

Flash Flood Warnings in Tennessee, 2023Every flash flood warning in 2023

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.