Alert archive / Tennessee / Flash Flood Warnings in 2026
Flash Flood Warning 72, NWS Morristown, TN
NWS Morristown, TN issued this flash flood warning at Aug 14, 2026, 8:03 PM EDT for Johnson County, Sullivan County, Tennessee; Washington County, Virginia. 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
- Aug 14, 2026, 8:03 PM EDT (00:03 UTC)
- Expired
- Aug 14, 2026, 10:37 PM EDT
- In force
- 3 hr
- Issued by
- NWS Morristown, TN
- Area
- Storm-based polygon
- Flood severity
- Unknown
Counties Johnson County, TN, Sullivan County, TN, Washington County, VA
The radar
The Knoxville radar (KMRX), 130 km from the middle of the area, began a volume at 00:05 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
Cncnati-Daytn, OH (KILN), launched 00:00Z, 0.1 hours before the alert went out and 354 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
- 199 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 989 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 53 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 14, 7:44 PM EDT, 19 minutes earlier.
Area forecast discussion, Aug 14, 7:44 PM EDT, 19 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, Aug 14, 2:09 PM EDT, 5 hours 54 minutes before
Hazardous Weather Outlook National Weather Service Morristown TN 209 PM EDT Fri Aug 14 2026 NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002- 005-006-008-151815- 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- 209 PM EDT Fri Aug 14 2026 /109 PM CDT Fri Aug 14 2026/ 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 will be around this afternoon into early evening. A few storms may become strong to severe with damaging winds the primary threat. Very heavy rainfall will also be possible which may lead to localized flooding. Very hot conditions can be expected especially over portions of southeast Tennessee this afternoon. See the heat advisory for more details. .DAYS TWO THROUGH SEVEN...Saturday through Thursday Scattered showers and thunderstorms can be expected Saturday afternoon with the highest coverage over northern and eastern areas. A few storms may become strong to severe with damaging winds the primary threat. Very heavy rainfall will also be possible which may lead to localized flooding. It will be very hot Saturday and Sunday afternoons especially across portions of southeast Tennessee. See the heat advisory for more details. .SPOTTER INFORMATION STATEMENT... Any reports of thunderstorm wind damage or flooding will be appreciated.
In the hours before
Special weather statement, Aug 14, 5:06 PM EDT, 2 hours 57 minutes before
Special Weather Statement
National Weather Service Morristown TN
506 PM EDT Fri Aug 14 2026
VAZ002-142145-
Wise VA-
506 PM EDT Fri Aug 14 2026
...STRONG THUNDERSTORMS WILL IMPACT WISE COUNTY AND THE CITY OF
NORTON THROUGH 545 PM EDT...
At 505 PM EDT, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from near Shelby Gap to Kings
Creek. Movement was southeast at 20 mph.
HAZARD...Wind gusts up to 40 mph and pea size hail.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Minor hail damage to vegetation is
possible.
Locations impacted include...
Norton, Wise, Big Stone Gap, Coeburn, Appalachia, Pound, and Pardee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3713 8255 3703 8248 3698 8240 3685 8285
3687 8285 3690 8288 3693 8286 3698 8287
3699 8284 3701 8283 3701 8279 3703 8275
3704 8274 3705 8272 3712 8272 3715 8264
3720 8255
TIME...MOT...LOC 2105Z 324DEG 17KT 3720 8251 3706 8290
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH
27Special weather statement, Aug 14, 5:45 PM EDT, 2 hours 18 minutes before
Special Weather Statement
National Weather Service Morristown TN
545 PM EDT Fri Aug 14 2026
VAZ002-005-142230-
Scott VA-Wise VA-
545 PM EDT Fri Aug 14 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL SCOTT AND WISE
COUNTIES AND THE CITY OF NORTON THROUGH 630 PM EDT...
At 545 PM EDT, Doppler radar was tracking a strong thunderstorm near
Wise, moving southeast at 15 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Norton, Wise, Coeburn, and Pardee.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3702 8247 3698 8237 3696 8236 3696 8234
3693 8231 3684 8266 3700 8282 3701 8278
3704 8274 3710 8252
TIME...MOT...LOC 2145Z 319DEG 14KT 3701 8265
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
27Special weather statement, Aug 14, 6:41 PM EDT, 1 hour 22 minutes before
Special Weather Statement
National Weather Service Morristown TN
641 PM EDT Fri Aug 14 2026
VAZ001-005-142330-
Scott VA-Lee VA-
641 PM EDT Fri Aug 14 2026
...A STRONG THUNDERSTORM WILL IMPACT EASTERN LEE AND WEST CENTRAL
SCOTT COUNTIES THROUGH 730 PM EDT...
At 641 PM EDT, Doppler radar was tracking a strong thunderstorm near
Dizney, or 10 miles north of Jonesville, moving southeast at 15 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Jonesville, Pennington Gap, St. Charles, Dryden, Jasper, and
Pattonsville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3682 8279 3681 8278 3681 8277 3680 8273
3661 8298 3674 8318 3675 8313 3678 8313
3685 8304 3686 8303 3685 8301 3686 8300
3686 8295
TIME...MOT...LOC 2241Z 307DEG 12KT 3683 8306
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
27Special weather statement, Aug 14, 6:44 PM EDT, 1 hour 19 minutes before
Special Weather Statement
National Weather Service Morristown TN
644 PM EDT Fri Aug 14 2026
TNZ017-VAZ005-008-142330-
Sullivan TN-Washington VA-Scott VA-
644 PM EDT Fri Aug 14 2026
...A STRONG THUNDERSTORM WILL IMPACT NORTH CENTRAL SULLIVAN...
SOUTHEASTERN SCOTT AND SOUTHWESTERN WASHINGTON COUNTIES AND THE CITY
OF BRISTOL THROUGH 730 PM EDT...
At 644 PM EDT, Doppler radar was tracking a strong thunderstorm 7
miles northwest of Walnut Hill, or 9 miles northwest of Bristol Tn,
moving southeast at 20 mph.
HAZARD...Wind gusts up to 40 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Bristol Tn, Bristol Va, Walnut Hill, and Blountville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
&&
LAT...LON 3662 8246 3669 8242 3664 8207 3645 8218
TIME...MOT...LOC 2244Z 295DEG 16KT 3663 8236
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
27Special weather statement, Aug 14, 6:57 PM EDT, 1 hour 6 minutes before
Special Weather Statement
National Weather Service Morristown TN
657 PM EDT Fri Aug 14 2026
TNZ017-018-VAZ008-142345-
Sullivan TN-Johnson TN-Washington VA-
657 PM EDT Fri Aug 14 2026
...A STRONG THUNDERSTORM WILL IMPACT EASTERN SULLIVAN...NORTHEASTERN
JOHNSON AND SOUTHEASTERN WASHINGTON COUNTIES THROUGH 745 PM EDT...
At 657 PM EDT, Doppler radar was tracking a strong thunderstorm 10
miles southeast of Abingdon, moving southeast at 15 mph.
HAZARD...Wind gusts up to 50 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Mountain City, Damascus, Laurel Bloomery, and Konnarock.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3662 8161 3661 8165 3659 8168 3657 8168
3657 8169 3653 8171 3647 8170 3646 8171
3642 8172 3641 8174 3639 8173 3659 8196
3673 8168 3671 8166 3664 8162 3664 8161
TIME...MOT...LOC 2257Z 315DEG 14KT 3664 8181
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH
27Special weather statement, Aug 14, 7:52 PM EDT, 11 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 |
|---|---|---|---|---|
| Aug 15, 1:06 PM EDT | Special Weather Statement | MRX | Roane | 39 min |
| Aug 15, 1:14 PM EDT | Special Weather Statement | MRX | Monroe | 46 min |
| Aug 15, 1:38 PM EDT | Special Weather Statement | MRX | Union | 52 min |
| Aug 15, 2:00 PM EDT | Special Weather Statement | MRX | Knox | 45 min |
| Aug 15, 2:18 PM EDT | Severe Thunderstorm Warning | MRX | Sullivan | 42 min |
| Aug 15, 4:23 PM EDT | Special Weather Statement | MRX | Hawkins | 52 min |
| Aug 15, 4:57 PM EDT | Severe Thunderstorm Warning | MRX | Cocke, Greene | 48 min |
| Aug 15, 5:14 PM EDT | Special Weather Statement | MRX | Greene | 46 min |
| Aug 15, 2:01 PM EDT | Special Weather Statement | MRX | Wise, City of Norton | 44 min |
| Aug 15, 2:03 PM EDT | Special Weather Statement | MRX | Russell, City of Bristol | 42 min |
| Aug 15, 2:31 PM EDT | Areal Flood Advisory | MRX | Lee, Russell, Scott, Washington, Wise | 3 hr |
| Aug 15, 2:34 PM EDT | Special Weather Statement | MRX | Scott | 41 min |
| Aug 15, 2:59 PM EDT | Special Weather Statement | MRX | Washington | 46 min |
| Aug 15, 4:13 PM EDT | Areal Flood Advisory | MRX | Russell, Washington | 3 hr |
| Aug 15, 12:47 PM EDT | Special Weather Statement | MRX | Cherokee, Clay | 43 min |
| Aug 15, 12:57 PM EDT | Severe Thunderstorm Warning | MRX | Cherokee, Clay | 63 min |
| Aug 15, 4:49 PM EDT | Special Weather Statement | MRX | Madison | 26 min |
| Aug 15, 5:42 PM EDT | Special Weather Statement | MRX | Madison | 33 min |
Nearby
Flash Flood Warnings in Tennessee, 2026Flash Flood Warnings in Virginia, 2026Every flash flood warning in 2026
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.