Alert archive / Tennessee / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 18, NWS Morristown, TN

May 6, 2024Greene County, Unicoi County, Washington County, Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at May 6, 2024, 7:16 PM EDT for Greene County, Unicoi County, Washington County, Tennessee. It was in force for 44 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 6, 2024, 7:16 PM EDT (23:16 UTC)
Expired
May 6, 2024, 8:00 PM EDT
In force
44 min
Issued by
NWS Morristown, TN
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Greene County, TN, Unicoi County, TN, Washington County, TN

The radar

The Knoxville radar (KMRX), 73 km from the middle of the area, began a volume at 23:18 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

Roanoke, VA (KRNK), launched 12:00Z, 11.3 hours before the alert went out and 298 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, Roanoke, VA at 12:00Z on 2024-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 101 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, Roanoke, VA at 12:00Z on 2024-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.193958Sfc1 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
101 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
720 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
48 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 6, 2:46 PM EDT, 4 hours 30 minutes earlier.

Area forecast discussion, May 6, 2:46 PM EDT, 4 hours 30 minutes before
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Hazardous weather outlook, May 6, 2:52 PM EDT, 4 hours 24 minutes before
Hazardous Weather Outlook
National Weather Service Morristown TN
252 PM EDT Mon May 6 2024

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-071900-
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-
252 PM EDT Mon May 6 2024 /152 PM CDT Mon May 6 2024/

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

.DAY ONE...This Afternoon and Tonight

A few storms this afternoon into this evening may become strong to
severe, especially across the southern and central portions of the
area. Damaging winds and hail will be the main threats, although
there is a very low threat of a brief tornado mainly south of
Interstate 40.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Scattered showers and thunderstorms are expected again Tuesday,
mainly during the afternoon into the overnight period. Some of
these storms could be strong to severe with damaging winds and
hail as the main threats.

Another round of even more organized storms is increasingly
likely Wednesday evening through Wednesday night. With this round
of storms, damaging winds and hail will be possible again, in
addition to a low-end tornado risk. Also, localized flooding will
remain possible through the week due to several rounds of storms
that could produce heavy downpours.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not needed at this time, but reports may be
needed this afternoon into this evening, Tuesday afternoon and
night, as well as Wednesday evening and night.

In the hours before

Special weather statement, May 6, 5:46 PM EDT, 1 hour 30 minutes before
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Local storm report, May 6, 5:55 PM EDT, 1 hour 21 minutes before
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Special weather statement, May 6, 6:20 PM EDT, 56 minutes before
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Local storm report, May 6, 6:47 PM EDT, 29 minutes before
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Special weather statement, May 6, 6:59 PM EDT, 17 minutes before
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Special weather statement, May 6, 7:02 PM EDT, 14 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
May 6, 8:47 AM EDTSpecial Weather StatementMRXHamilton43 min
May 6, 9:19 AM EDTSpecial Weather StatementMRXKnox, Sevier41 min
May 6, 9:58 AM EDTSpecial Weather StatementMRXGrainger, Jefferson32 min
May 6, 11:48 AM EDTSpecial Weather StatementMRXHawkins, Sullivan, Unicoi, Washington57 min
May 6, 3:44 PM EDTSpecial Weather StatementMRXScott31 min
May 6, 3:50 PM EDTSevere Thunderstorm WarningMRXBledsoe, Sequatchie25 min
May 6, 4:19 PM EDTSpecial Weather StatementMRXScott56 min
May 6, 5:40 PM EDTSevere Thunderstorm WarningMRXCocke, Sevier35 min
May 6, 5:46 PM EDTSpecial Weather StatementMRXScott29 min
May 6, 6:14 PM EDTSevere Thunderstorm WarningMRXCocke, Sevier46 min
May 6, 6:20 PM EDTSpecial Weather StatementMRXCampbell25 min
May 6, 6:25 PM EDTAreal Flood AdvisoryMRXCampbell, Scott2 hr
May 6, 6:34 PM EDTSevere Thunderstorm WarningMRXBledsoe26 min
May 6, 6:59 PM EDTSpecial Weather StatementMRXGreene46 min
May 6, 7:02 PM EDTSpecial Weather StatementMRXBledsoe28 min
May 6, 12:41 PM EDTSpecial Weather StatementMRXCity of Bristol64 min
May 6, 1:56 PM EDTSpecial Weather StatementMRXCherokee64 min
May 6, 3:02 PM EDTSpecial Weather StatementMRXCherokee, Clay43 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2024Every severe thunderstorm 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.