Alert archive / Tennessee / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 4, NWS Morristown, TN

January 1, 2022Bradley County, Hamilton County, Marion County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jan 1, 2022, 9:55 PM EST for Bradley County, Hamilton County, Marion County, Tennessee. It was in force for 50 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
Jan 1, 2022, 9:55 PM EST (02:55 UTC)
Expired
Jan 1, 2022, 10:45 PM EST
In force
50 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Tornado
Possible
Hail
0.75 in
Wind
60.0 mph

Counties Bradley County, TN, Hamilton County, TN, Marion County, TN

The radar

The Northeast Alabama radar (KHTX), 83 km from the middle of the area, began a volume at 02:55 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jan 1, 7:53 PM ESTTornado WatchSPC7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 2.9 hours before the alert went out and 166 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, Nashville Metro, TN at 00:00Z on 2022-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Nashville Metro, TN at 00:00Z on 2022-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -302 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
89 kt
0-1 km storm-relative helicity
-302 m²/s²
0-3 km storm-relative helicity
-54 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 Jan 1, 9:39 PM EST, 16 minutes earlier.

Area forecast discussion, Jan 1, 9:39 PM EST, 16 minutes before
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Hazardous weather outlook, Jan 1, 4:17 PM EST, 5 hours 38 minutes before
Hazardous Weather Outlook
National Weather Service Morristown TN
417 PM EST Sat Jan 1 2022

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-022130-
Cherokee-Clay-Scott-Campbell-Claiborne-Hancock-Hawkins-Sullivan-
Johnson-Morgan-Anderson-Union-Grainger-Hamblen-Northwest Cocke-
Cocke Smoky Mountains-Northwest Greene-Southeast Greene-
Washington-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-Russell-
417 PM EST Sat Jan 1 2022 /317 PM CST Sat Jan 1 2022/

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

.DAY ONE...Tonight

Strong winds continue this afternoon with wind gusts above 40 mph
across the entire region. Please see the Wind Advisory and High
Wind Warning for additional information.

Severe thunderstorms are expected this evening into tonight with damaging
wind gusts, heavy rainfall rates, and isolated tornadoes possible.
The main risk will be across the Cumberland Plateau and southeast
Tennessee.

.DAYS TWO THROUGH SEVEN...Sunday through Friday

Colder air arrives Sunday. Lingering rain showers will turn to
snow showers Sunday evening across the area before tapering off
early Monday morning. Snow accumulations will be possible across
the mountains of East Tennessee, southwest Virginia, and southwest
North Carolina.

.SPOTTER INFORMATION STATEMENT...

Spotter reports may be needed for severe weather and flash
flooding this evening and tonight.

In the hours before

Special weather statement, Jan 1, 7:01 PM EST, 2 hours 54 minutes before
Special Weather Statement
National Weather Service Morristown TN
701 PM EST Sat Jan 1 2022

TNZ015-VAZ001-005-020045-
Hancock TN-Scott VA-Lee VA-
701 PM EST Sat Jan 1 2022

...A strong thunderstorm will impact portions of northeastern
Hancock, southeastern Lee and southwestern Scott Counties through 745
PM EST...

At 700 PM EST, Doppler radar was tracking a strong thunderstorm near
Jonesville, moving east at 45 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...
Jonesville, Duffield, Clinchport, Kyles Ford and Pattonsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

A Tornado Watch remains in effect until 800 PM EST for east
Tennessee...and southwestern Virginia.

&&

LAT...LON 3659 8267 3659 8284 3657 8289 3655 8328
      3670 8326 3673 8269
TIME...MOT...LOC 0000Z 257DEG 40KT 3662 8317

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH

SR
Local storm report, Jan 1, 7:43 PM EST, 2 hours 12 minutes before
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Special weather statement, Jan 1, 8:07 PM EST, 1 hour 48 minutes before
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Local storm report, Jan 1, 9:17 PM EST, 38 minutes before
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Special weather statement, Jan 1, 9:41 PM EST, 14 minutes before
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Special weather statement, Jan 1, 9:45 PM EST, 10 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jan 1, 7:10 PM ESTSevere Thunderstorm WarningMRXBledsoe, Sequatchie65 min
Jan 1, 7:48 PM ESTSevere Thunderstorm WarningMRXAnderson, Meigs, Morgan, Rhea, Roane44 min
Jan 1, 8:07 PM ESTSpecial Weather StatementMRXMarion53 min
Jan 1, 9:41 PM ESTSpecial Weather StatementMRXBradley, Hamilton49 min
Jan 1, 9:45 PM ESTSpecial Weather StatementMRXGrainger45 min
Jan 1, 10:44 PM ESTSpecial Weather StatementMRXPolk46 min
Jan 2, 12:49 AM ESTAreal Flood AdvisoryMRXHamilton, Marion, Sequatchie4 hr
Jan 2, 4:03 AM ESTWinter Storm WarningMRXAnderson, Bledsoe, Blount, Campbell, Carter, Claiborne and 22 more30 hr
Jan 2, 4:03 AM ESTWinter Weather AdvisoryMRXAnderson, Bledsoe, Bradley, Campbell, Claiborne, Grainger and 15 more24 hr
Jan 2, 9:06 AM ESTRiver Flood WarningMRXHancock22 hr
Jan 2, 9:06 AM ESTRiver Flood WarningMRXClaiborne, Grainger, Hancock22 hr
Jan 1, 7:01 PM ESTSpecial Weather StatementMRXLee44 min
Jan 2, 9:06 AM ESTRiver Flood WarningMRXRussell, Scott, Wise11 hr
Jan 2, 2:18 AM ESTSpecial Weather StatementMRXCherokee, Clay27 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 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.