Alert archive / Tennessee / Flash Flood Warnings in 2024
Flash Flood Warning 43, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Sep 26, 2024, 11:52 PM EDT for 9 counties in Tennessee. It was in force for 3 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
- Sep 26, 2024, 11:52 PM EDT (03:52 UTC)
- Expired
- Sep 27, 2024, 2:45 AM EDT
- In force
- 3 hr
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Flood severity
- None
Counties Anderson County, TN, Blount County, TN, Bradley County, TN, Knox County, TN, Loudon County, TN, McMinn County, TN, Monroe County, TN, Polk County, TN, Roane County, TN
The radar
The Knoxville radar (KMRX), 105 km from the middle of the area, began a volume at 03:55 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
Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 3.9 hours before the alert went out and 250 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
- 47 J/kg
- Mixed-layer CIN
- -40 J/kg
- Mixed-layer LCL
- 612 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 168 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 Sep 26, 9:56 PM EDT, 1 hour 56 minutes earlier.
Area forecast discussion, Sep 26, 9:56 PM EDT, 1 hour 56 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<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>
</section>
</main>
<script src="index.js"></script>
</body>
</html>Hazardous weather outlook, Sep 26, 4:25 AM EDT, 19 hours 27 minutes before
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Service Notice</title>
<link rel="stylesheet" href="index.css">
</head>
<body>
<main class="wrap">
<section class="card" role="status" aria-live="polite">
<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>
</section>
</main>
<script src="index.js"></script>
</body>
</html>The office that day
Everything else NWS Morristown, TN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 27, 4:18 AM EDT | Areal Flood Advisory | MRX | Hamilton, Marion, Sequatchie | 5 hr |
| Sep 27, 4:47 AM EDT | Areal Flood Warning | MRX | Blount, Cocke, Sevier | 6 hr |
| Sep 27, 7:44 AM EDT | Flash Flood Warning | MRX | Hamilton, Marion, Sequatchie | 4 hr |
| Sep 27, 8:50 AM EDT | Areal Flood Warning | MRX | Carter, Greene, Johnson, Unicoi | 3 hr |
| Sep 27, 9:14 AM EDT | Flash Flood Warning | MRX | Carter, Unicoi | 11 hr |
| Sep 27, 9:35 AM EDT | Flash Flood Warning | MRX | Johnson | 10 hr |
| Sep 27, 10:02 AM EDT | Flash Flood Warning | MRX | Carter, Unicoi, Washington | 7 hr |
| Sep 27, 10:36 AM EDT | Flash Flood Warning | MRX | Cocke, Sevier | 7 hr |
| Sep 27, 11:01 AM EDT | River Flood Warning | MRX | Hamilton | 22 hr |
| Sep 27, 11:26 AM EDT | River Flood Warning | MRX | Carter | 15 hr |
| Sep 27, 12:02 PM EDT | River Flood Warning | MRX | Sevier | 21 hr |
| Sep 27, 2:29 PM EDT | Wind Advisory | MRX | Blount, Carter, Cocke, Greene, Johnson, Monroe and 3 more | 24 hr |
| Sep 27, 2:58 PM EDT | Flash Flood Warning | MRX | Hancock, Hawkins | 2 hr |
| Sep 27, 3:30 PM EDT | Flash Flood Warning | MRX | Cocke, Hamblen, Jefferson | 64 min |
| Sep 27, 4:54 PM EDT | Flash Flood Warning | MRX | Carter, Greene, Johnson, Sullivan, Unicoi, Washington | 3 hr |
| Sep 27, 6:01 PM EDT | Areal Flood Warning | MRX | Cocke, Greene, Jefferson, Sevier | 16 hr |
| Sep 27, 6:25 PM EDT | Areal Flood Warning | MRX | Sullivan | 16 hr |
| Sep 27, 7:29 PM EDT | Flash Flood Warning | MRX | Johnson | 6 hr |
| Sep 27, 7:38 PM EDT | Flash Flood Warning | MRX | Carter, Johnson, Unicoi, Washington | 6 hr |
| Sep 27, 7:50 PM EDT | Flash Flood Warning | MRX | Carter, Sullivan, Unicoi, Washington | 6 hr |
| Sep 27, 11:13 AM EDT | Flash Flood Warning | MRX | Russell, Scott, Washington, Wise, City of Bristol, City of Norton | 4 hr |
| Sep 27, 2:43 PM EDT | Flash Flood Warning | MRX | Washington, City of Bristol | 5 hr |
Nearby
Flash Flood Warnings in Tennessee, 2024Every flash flood warning in 2024
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.