Alert archive / Tennessee / Flash Flood Warnings in 2025
Flash Flood Warning 64, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Aug 24, 2025, 12:45 AM EDT for Meigs County, Roane County, Tennessee. It was in force for 2 hr. 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 24, 2025, 12:45 AM EDT (04:45 UTC)
- Expired
- Aug 24, 2025, 2:45 AM EDT
- In force
- 2 hr
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Meigs County, TN, Roane County, TN
The radar
The Knoxville radar (KMRX), 126 km from the middle of the area, began a volume at 04:47 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 nearest sounding before it
Birmingham, AL (KBMX), launched 00:00Z, 4.8 hours before the alert went out and 339 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 913 J/kg
- Mixed-layer CIN
- -7 J/kg
- Mixed-layer LCL
- 1198 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -1 m²/s²
- 0-3 km storm-relative helicity
- 0 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 23, 7:20 PM EDT, 5 hours 25 minutes earlier.
Area forecast discussion, Aug 23, 7:20 PM EDT, 5 hours 25 minutes before
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</html>Hazardous weather outlook, Aug 23, 1:37 PM EDT, 11 hours 8 minutes before
Hazardous Weather Outlook National Weather Service Morristown TN 137 PM EDT Sat Aug 23 2025 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-241745- 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- 137 PM EDT Sat Aug 23 2025 /1237 PM CDT Sat Aug 23 2025/ This Hazardous Weather Outlook is for portions of southwest North Carolina...east Tennessee and southwest Virginia. .DAY ONE...This Afternoon and Tonight Scattered showers and storms are likely this afternoon and evening. Due to recent heavy rainfall and abundant moisture, localized flash flooding is possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Reports of flooding are encouraged this afternoon and evening.
In the hours before
Local storm report, Aug 23, 6:58 PM EDT, 5 hours 47 minutes before
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</html>Local storm report, Aug 23, 7:17 PM EDT, 5 hours 28 minutes before
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</html>Local storm report, Aug 23, 7:48 PM EDT, 4 hours 57 minutes before
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<main class="wrap">
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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.
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</html>The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 8:07 PM EDT | Areal Flood Advisory | MRX | Marion, Sequatchie | 113 min |
| Aug 23, 8:48 PM EDT | Areal Flood Advisory | MRX | Anderson | 117 min |
| Aug 23, 10:08 PM EDT | Areal Flood Advisory | MRX | Knox | 2 hr |
| Aug 23, 10:41 PM EDT | Areal Flood Advisory | MRX | Blount | 2 hr |
| Aug 23, 11:12 PM EDT | Areal Flood Advisory | MRX | Bledsoe, Rhea | 2 hr |
| Aug 23, 11:23 PM EDT | Areal Flood Advisory | MRX | Meigs, Roane | 2 hr |
| Aug 23, 11:41 PM EDT | Areal Flood Advisory | MRX | Sevier | 2 hr |
| Aug 24, 12:03 AM EDT | Areal Flood Advisory | MRX | Blount, Knox, Loudon, Roane | 117 min |
Nearby
Flash Flood Warnings in Tennessee, 2025Every flash flood warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.