Alert archive / Tennessee / Special Weather Statements in 2022

Special Weather Statement, NWS Morristown, TN

August 6, 2022Knox County, Tennessee

NWS Morristown, TN issued this special weather statement at Aug 6, 2022, 4:37 PM EDT for Knox County, Tennessee. It was in force for 38 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 6, 2022, 4:37 PM EDT (20:37 UTC)
Expired
Aug 6, 2022, 5:15 PM EDT
In force
38 min
Issued by
NWS Morristown, TN
Hail
0.50 in
Wind
50

County Knox County, TN

The radar

The Knoxville radar (KMRX), 46 km from the middle of the area, began a volume at 20:37 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

Nashville Metro, TN (KBNA), launched 12:00Z, 8.6 hours before the alert went out and 255 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 12:00Z on 2022-08-06Temperature 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 12:00Z on 2022-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
0 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
1 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Aug 6, 3:33 PM EDT, 1 hour 4 minutes earlier.

Area forecast discussion, Aug 6, 3:33 PM EDT, 1 hour 4 minutes before
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Hazardous weather outlook, Aug 6, 3:11 PM EDT, 1 hour 26 minutes before
Hazardous Weather Outlook
National Weather Service Morristown TN
311 PM EDT Sat Aug 6 2022

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-071915-
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-
311 PM EDT Sat Aug 6 2022 /211 PM CDT Sat Aug 6 2022/

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 thunderstorms through this early this
evening then diminishing in coverage and intensity. Localized
flash flooding and damaging wind gusts are the main concerns
within the strongest storms.

.DAYS TWO THROUGH SEVEN...Sunday through Saturday

A wet pattern will remain in place with scattered showers and
thunderstorms each day. The greatest coverage of thunderstorms is
expected to be in the afternoon and evening hours. Localized
flooding will be possible with thunderstorms that move slowly or
track repeatedly over the same locations, and damaging wind gusts
will be possible with the strongest thunderstorms.

Be especially careful when camping due to the wet ground. The wet
soil increases the likelihood of down trees.

.SPOTTER INFORMATION STATEMENT...

Spotter reports of flooding or wind damage are encouraged.

In the hours before

Local storm report, Aug 6, 10:45 AM EDT, 5 hours 52 minutes before
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Special weather statement, Aug 6, 3:21 PM EDT, 1 hour 16 minutes before
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Special weather statement, Aug 6, 4:15 PM EDT, 22 minutes before
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Special weather statement, Aug 6, 4:21 PM EDT, 16 minutes before
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Special weather statement, Aug 6, 4:37 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 1:51 PM EDTAreal Flood AdvisoryMRXCarter, Unicoi3 hr
Aug 6, 2:12 PM EDTAreal Flood AdvisoryMRXBledsoe, Rhea3 hr
Aug 6, 3:21 PM EDTSpecial Weather StatementMRXCampbell24 min
Aug 6, 3:32 PM EDTAreal Flood AdvisoryMRXCampbell, Scott118 min
Aug 6, 4:11 PM EDTSevere Thunderstorm WarningMRXClaiborne, Grainger, Union31 min
Aug 6, 4:15 PM EDTSpecial Weather StatementMRXUnion45 min
Aug 6, 4:21 PM EDTSpecial Weather StatementMRXAnderson39 min
Aug 6, 4:44 PM EDTSpecial Weather StatementMRXGrainger46 min
Aug 6, 4:47 PM EDTSpecial Weather StatementMRXHancock43 min
Aug 6, 5:03 PM EDTSpecial Weather StatementMRXLoudon42 min
Aug 6, 5:08 PM EDTAreal Flood AdvisoryMRXAnderson, Campbell, Knox, Roane3 hr
Aug 6, 5:21 PM EDTSpecial Weather StatementMRXSequatchie39 min
Aug 6, 5:28 PM EDTAreal Flood AdvisoryMRXClaiborne, Grainger, Hamblen, Jefferson, Knox, Union3 hr
Aug 6, 5:49 PM EDTSpecial Weather StatementMRXLoudon41 min
Aug 6, 5:57 PM EDTSpecial Weather StatementMRXCocke48 min
Aug 6, 6:01 PM EDTSpecial Weather StatementMRXSequatchie44 min
Aug 6, 6:54 PM EDTSpecial Weather StatementMRXBledsoe51 min
Aug 6, 7:06 PM EDTSpecial Weather StatementMRXHamilton39 min
Aug 6, 7:18 PM EDTAreal Flood AdvisoryMRXHancock, Hawkins, Sullivan3 hr
Aug 6, 7:23 PM EDTSevere Thunderstorm WarningMRXHamilton52 min
Aug 6, 6:51 PM EDTSpecial Weather StatementMRXScott39 min
Aug 5, 8:53 PM EDTSpecial Weather StatementMRXClay52 min
Aug 6, 1:13 PM EDTAreal Flood AdvisoryMRXCherokee, Clay3 hr

Nearby

Special Weather Statements in Tennessee, 2022Every special weather statement 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.