Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Morristown, TN

June 8, 2021Roane County, Tennessee

NWS Morristown, TN issued this special weather statement at Jun 8, 2021, 11:01 PM EDT for Roane County, Tennessee. It was in force for 59 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: Jun 8, 2021, 11:01 PM EDT (03:01 UTC)
Expired: Jun 9, 2021, 12:00 AM EDT
In force: 59 min
Issued by: NWS Morristown, TN

County Roane County, TN

The radar

The Knoxville radar (KMRX), 128 km from the middle of the area, began a volume at 03:01 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 00:00Z, 3.0 hours before the alert went out and 164 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 356 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1123 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 65 m²/s²
0-3 km storm-relative helicity: 140 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 Jun 8, 7:58 PM EDT, 3 hours 3 minutes earlier.

Area forecast discussion, Jun 8, 7:58 PM EDT, 3 hours 3 minutes before

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Hazardous weather outlook, Jun 8, 3:47 PM EDT, 7 hours 14 minutes before

Hazardous Weather Outlook...UPDATED
National Weather Service Morristown TN
347 PM EDT Tue Jun 8 2021

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-092000-
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-
347 PM EDT Tue Jun 8 2021 /247 PM CDT Tue Jun 8 2021/

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

.DAY ONE...This Afternoon and Tonight

Localized heavy rainfall and strong winds will be possible over
the northern Tennessee valley, northeastern Tennessee mountains,
and southwest Virginia through this evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday

Showers and thunderstorms will produce locally heavy rainfall this
week, which may produce flash flooding, particularly on Wednesday
and Thursday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not needed at this time.

In the hours before

Special weather statement, Jun 8, 5:11 PM EDT, 5 hours 50 minutes before

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Special weather statement, Jun 8, 5:27 PM EDT, 5 hours 34 minutes before

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Special weather statement, Jun 8, 5:44 PM EDT, 5 hours 17 minutes before

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Special weather statement, Jun 8, 5:48 PM EDT, 5 hours 13 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 8, 9:26 PM EDT	Special Weather Statement	MRX	Hamilton, Marion, Sequatchie	64 min
Jun 8, 10:05 PM EDT	Special Weather Statement	MRX	Bledsoe, Hamilton, Sequatchie	55 min
Jun 8, 10:15 PM EDT	Special Weather Statement	MRX	McMinn, Meigs, Monroe	60 min
Jun 8, 10:36 PM EDT	Special Weather Statement	MRX	Bledsoe, Rhea	54 min
Jun 8, 10:52 PM EDT	Special Weather Statement	MRX	Blount, Loudon, Meigs, Monroe, Roane	53 min
Jun 8, 11:39 PM EDT	Special Weather Statement	MRX	Anderson, Knox, Loudon, Morgan, Roane, Scott	66 min
Jun 8, 9:28 PM EDT	Special Weather Statement	MRX	Cherokee	47 min
Jun 8, 10:17 PM EDT	Special Weather Statement	MRX	Cherokee, Clay	43 min

Nearby

Special Weather Statements in Tennessee, 2021 Every special weather statement in 2021

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.