Alert archive / North Carolina / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 14, NWS Morristown, TN

May 4, 2022Clay County, North Carolina

NWS Morristown, TN issued this severe thunderstorm warning at May 4, 2022, 12:24 AM EDT for Clay County, North Carolina. It was in force for 17 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
May 4, 2022, 12:24 AM EDT (04:24 UTC)
Expired
May 4, 2022, 12:41 AM EDT
In force
17 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Clay County, NC

The radar

The Knoxville radar (KMRX), 128 km from the middle of the area, began a volume at 04:27 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, 4.4 hours before the alert went out and 200 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.

Skew-T log-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 2022-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 374 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 2022-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
374 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1783 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 3, 11:30 PM EDT, 54 minutes earlier.

Area forecast discussion, May 3, 11:30 PM EDT, 54 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, May 3, 3:23 PM EDT, 9 hours 1 minute before
Hazardous Weather Outlook
National Weather Service Morristown TN
323 PM EDT Tue May 3 2022

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-041930-
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-
323 PM EDT Tue May 3 2022 /223 PM CDT Tue May 3 2022/

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

.DAY ONE...This Afternoon and Tonight

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not needed at this time.

In the hours before

Special weather statement, May 3, 6:43 PM EDT, 5 hours 41 minutes before
Special Weather Statement
National Weather Service Morristown TN
643 PM EDT Tue May 3 2022

TNZ018-047-032330-
Southeast Carter TN-Johnson TN-
643 PM EDT Tue May 3 2022

...A strong thunderstorm will impact portions of southern Johnson and
southeastern Carter Counties through 730 PM EDT...

At 643 PM EDT, Doppler radar was tracking a strong thunderstorm near
Elk Park, or 9 miles northwest of Newland, moving northeast at 20
mph.

HAZARD...Winds in excess of 40 mph and nickel size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Mountain City, Trade, Roane Mountain State Park, Neva, Hampton Creek
Cove State Park, Elk Mills and Roan Mountain.

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 3634 8175 3635 8178 3636 8179 3634 8185
      3630 8191 3612 8203 3612 8205 3610 8208
      3611 8213 3615 8215 3614 8218 3618 8222
      3649 8179 3643 8172 3640 8174 3634 8171
TIME...MOT...LOC 2243Z 230DEG 16KT 3616 8208

MAX HAIL SIZE...0.88 IN
MAX WIND GUST...40 MPH
Special weather statement, May 3, 7:58 PM EDT, 4 hours 26 minutes before
Special Weather Statement
National Weather Service Morristown TN
658 PM CDT Tue May 3 2022

TNZ098-040045-
Marion TN-
658 PM CDT Tue May 3 2022

...A strong thunderstorm will impact portions of Marion County
through 745 PM CDT...

At 657 PM CDT, Doppler radar was tracking a strong thunderstorm near
Cowan, or 10 miles southeast of Winchester, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Jasper, South Pittsburg, Whitwell, Kimball, Monteagle, Powells
Crossroads, Orme, Martin Springs, Fiery Gizzard State Park and
Haletown (guild).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3524 8585 3524 8582 3522 8577 3522 8574
      3524 8569 3528 8570 3529 8551 3527 8549
      3527 8546 3503 8547 3499 8547 3498 8548
      3499 8586 3522 8586 3522 8587
TIME...MOT...LOC 2357Z 266DEG 26KT 3507 8599

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
Special weather statement, May 3, 8:41 PM EDT, 3 hours 43 minutes before
Special Weather Statement
National Weather Service Morristown TN
841 PM EDT Tue May 3 2022

TNZ081-098-099-040130-
Sequatchie TN-Marion TN-Hamilton TN-
841 PM EDT Tue May 3 2022

...A strong thunderstorm will impact portions of southern Sequatchie,
Marion and Hamilton Counties through 930 PM EDT/830 PM CDT/...

At 841 PM EDT/741 PM CDT/, Doppler radar was tracking a strong
thunderstorm near Whitwell, or near Jasper, moving east at 30 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Chattanooga, Jasper, Soddy-Daisy, Signal Mountain, South Pittsburg,
Walden, Lakesite, Whitwell, Kimball and Ridgeside.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3499 8572 3531 8560 3531 8507 3499 8508
      3498 8550
TIME...MOT...LOC 0041Z 268DEG 28KT 3514 8554

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
Special weather statement, May 3, 9:26 PM EDT, 2 hours 58 minutes before
Special Weather Statement
National Weather Service Morristown TN
926 PM EDT Tue May 3 2022

TNZ099>101-040215-
West Polk TN-Bradley TN-Hamilton TN-
926 PM EDT Tue May 3 2022

...A strong thunderstorm will impact portions of Bradley, western
Polk and southeastern Hamilton Counties through 1015 PM EDT...

At 926 PM EDT, Doppler radar was tracking a strong thunderstorm over
Harrison, or 9 miles northeast of Chattanooga, moving east at 35 mph.

HAZARD...Wind gusts up to 50 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Chattanooga, Cleveland, Benton, Soddy-Daisy, Lakesite, South
Cleveland, Harrison, East Cleveland, Wildwood Lake and Collegedale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3499 8522 3524 8517 3526 8470 3525 8470
      3525 8471 3524 8470 3526 8467 3526 8459
      3499 8459
TIME...MOT...LOC 0126Z 269DEG 32KT 3513 8511

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...50 MPH
Special weather statement, May 3, 10:08 PM EDT, 2 hours 16 minutes before
Special Weather Statement
National Weather Service Morristown TN
1008 PM EDT Tue May 3 2022

TNZ085>087-100>102-040300-
West Polk TN-Northwest Monroe TN-East Polk TN-Southeast Monroe TN-
Bradley TN-McMinn TN-
1008 PM EDT Tue May 3 2022

...A strong thunderstorm will impact portions of northeastern
Bradley, Polk, southern McMinn and southwestern Monroe Counties
through 1100 PM EDT...

At 1008 PM EDT, Doppler radar was tracking a strong thunderstorm over
Benton, moving east at 35 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Cleveland, Benton, Etowah, Charleston, Wildwood Lake, Tellico Plains,
Calhoun, Coker Creek, Parksville and Turtletown.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3507 8484 3534 8482 3539 8428 3523 8428
      3522 8429 3507 8431
TIME...MOT...LOC 0208Z 264DEG 29KT 3517 8470

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH
Special weather statement, May 3, 11:28 PM EDT, 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>

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 8:41 PM EDTSpecial Weather StatementMRXHamilton, Marion49 min
May 3, 9:26 PM EDTSpecial Weather StatementMRXBradley49 min
May 3, 10:08 PM EDTSpecial Weather StatementMRXPolk52 min
May 3, 10:35 PM EDTSevere Thunderstorm WarningMRXMonroe, Polk55 min
May 3, 11:28 PM EDTSpecial Weather StatementMRXClay47 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2022Every severe thunderstorm warning in 2022

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.