Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Morristown, TN

June 3, 2021Scott County, Tennessee

NWS Morristown, TN issued this special weather statement at Jun 3, 2021, 4:41 PM EDT for Scott County, Tennessee. It was in force for 49 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 3, 2021, 4:41 PM EDT (20:41 UTC)
Expired: Jun 3, 2021, 5:30 PM EDT
In force: 49 min
Issued by: NWS Morristown, TN

County Scott County, TN

The radar

The Knoxville radar (KMRX), 116 km from the middle of the area, began a volume at 20:45 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, 8.7 hours before the alert went out and 185 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: 300 J/kg
Mixed-layer CIN: -68 J/kg
Mixed-layer LCL: 837 m above ground
0-6 km bulk shear: 43 kt
0-1 km storm-relative helicity: 100 m²/s²
0-3 km storm-relative helicity: 129 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

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 3, 3:18 PM EDT, 1 hour 23 minutes earlier.

Area forecast discussion, Jun 3, 3:18 PM EDT, 1 hour 23 minutes before

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Hazardous weather outlook, Jun 3, 3:03 PM EDT, 1 hour 38 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
303 PM EDT Thu Jun 3 2021

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-041915-
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-
303 PM EDT Thu Jun 3 2021 /203 PM CDT Thu Jun 3 2021/

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

.DAY ONE...This Afternoon and Tonight

Scattered to widespread showers and thunderstorms will continue
into the evening hours. While widespread severe weather is not
expected, a few storms could be strong to severe, with damaging
winds and heavy rainfall being the primary threat. Some small hail
could also occur.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any severe weather to our office
today and tonight.

In the hours before

Local storm report, Jun 3, 2:02 PM EDT, 2 hours 39 minutes before

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Local storm report, Jun 3, 2:03 PM EDT, 2 hours 38 minutes before

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Special weather statement, Jun 3, 2:34 PM EDT, 2 hours 7 minutes before

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Special weather statement, Jun 3, 2:38 PM EDT, 2 hours 3 minutes before

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Special weather statement, Jun 3, 3:44 PM EDT, 57 minutes before

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Special weather statement, Jun 3, 4:41 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Morristown TN
441 PM EDT Thu Jun 3 2021

TNZ012-032130-
Scott TN-
441 PM EDT Thu Jun 3 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN SCOTT COUNTY UNTIL
530 PM EDT...

At 441 PM EDT, Doppler radar was tracking a strong thunderstorm near
Great Meadows Campsites, or 8 miles northwest of Oneida, moving east
at 15 mph.

Pea size hail and winds in excess of 40 mph will be possible with
this storm.

Locations impacted include...
Oneida, Winfield and Big South Fork National Park.

LAT...LON 3659 8445 3647 8451 3650 8471 3660 8478
      3660 8471
TIME...MOT...LOC 2041Z 273DEG 12KT 3658 8463

BW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 7:41 AM EDT	Special Weather Statement	MRX	Anderson, Campbell, Morgan, Scott	49 min
Jun 3, 8:26 AM EDT	Special Weather Statement	MRX	Anderson, Campbell, Claiborne, Knox, Union	49 min
Jun 3, 12:51 PM EDT	Special Weather Statement	MRX	Bradley, Polk	39 min
Jun 3, 1:04 PM EDT	Severe Thunderstorm Warning	MRX	Polk	26 min
Jun 3, 1:30 PM EDT	Special Weather Statement	MRX	Bradley	45 min
Jun 3, 2:34 PM EDT	Special Weather Statement	MRX	Polk	26 min
Jun 3, 4:56 PM EDT	Special Weather Statement	MRX	Scott	49 min
Jun 3, 5:21 PM EDT	Special Weather Statement	MRX	Campbell, Scott	39 min
Jun 3, 7:14 PM EDT	Areal Flood Advisory	MRX	Morgan, Scott	3 hr
Jun 3, 2:38 PM EDT	Special Weather Statement	MRX	Cherokee	52 min
Jun 3, 3:44 PM EDT	Special Weather Statement	MRX	Cherokee	46 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.