Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Morristown, TN

August 31, 2021Meigs County, Tennessee

NWS Morristown, TN issued this special weather statement at Aug 31, 2021, 3:07 PM EDT for Meigs County, Tennessee. It was in force for 23 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 31, 2021, 3:07 PM EDT (19:07 UTC)
Expired: Aug 31, 2021, 3:30 PM EDT
In force: 23 min
Issued by: NWS Morristown, TN
Hail: 0.00 in
Wind: 40

County Meigs County, TN

The radar

The Northeast Alabama radar (KHTX), 122 km from the middle of the area, began a volume at 19:09 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.1 hours before the alert went out and 237 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: 209 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 708 m above ground
0-6 km bulk shear: 25 kt
0-1 km storm-relative helicity: 283 m²/s²
0-3 km storm-relative helicity: 351 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 2.5

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 31, 2:01 PM EDT, 1 hour 6 minutes earlier.

Area forecast discussion, Aug 31, 2:01 PM EDT, 1 hour 6 minutes before

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</head>
<body>
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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        Please try again in a few minutes.
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Hazardous weather outlook, Aug 30, 3:53 PM EDT, 23 hours 14 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
353 PM EDT Mon Aug 30 2021

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-312000-
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-
353 PM EDT Mon Aug 30 2021 /253 PM CDT Mon Aug 30 2021/

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

.DAY ONE...This Afternoon and Tonight

Outer rain bands associated with Ida may make their way into
southern parts of the Tennessee valley late this evening and
overnight. While the threat is low, an isolated tornado could
occur in these bands.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

The remnants of Hurricane Ida will affect the area from late
tonight through Wednesday morning. Heavy rains and even some
isolated tornadoes will be a possibility.

Flooding is a concern as rain bands move through the area. The
primary areas of concern for heavy rains and flooding will be
along the Cumberland Plateau and western portions of southwest
Virginia where 2 to 4 inches of rain are forecast.

The threat for isolated tornadoes will continue on Tuesday as rain
bands from Ida continue to rotate into the forecast area. Primary
concern will be south of roughly Athens, but the threat will
extend into the northern Tennessee valley as well.

.SPOTTER INFORMATION STATEMENT...

Spotter reports are welcome for flooding and tornadoes.

In the hours before

Special weather statement, Aug 31, 2:08 PM EDT, 59 minutes before

Special Weather Statement
National Weather Service Morristown TN
108 PM CDT Tue Aug 31 2021

TNZ081-082-311830-
Sequatchie TN-Bledsoe TN-
108 PM CDT Tue Aug 31 2021

...A strong thunderstorm will impact portions of east central
Sequatchie and southwestern Bledsoe Counties through 130 PM CDT...

At 108 PM CDT, Doppler radar was tracking a strong thunderstorm near
Dunlap, moving north at 30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Palio.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3531 8536 3550 8536 3545 8517 3533 8524
      3528 8528
TIME...MOT...LOC 1808Z 199DEG 26KT 3535 8530

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

JLB

Special weather statement, Aug 31, 2:10 PM EDT, 57 minutes before

Special Weather Statement
National Weather Service Morristown TN
210 PM EDT Tue Aug 31 2021

TNZ099-100-311830-
Bradley TN-Hamilton TN-
210 PM EDT Tue Aug 31 2021

...A strong thunderstorm will impact portions of west central Bradley
and southeastern Hamilton Counties through 230 PM EDT...

At 210 PM EDT, Doppler radar was tracking a strong thunderstorm near
South Cleveland, or 11 miles southwest of Cleveland, moving north at
30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Cleveland, South Cleveland, Collegedale, McDonald, Ooltewah and
Apison.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3502 8500 3505 8509 3518 8507 3513 8490
TIME...MOT...LOC 1810Z 199DEG 26KT 3508 8502

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

JLB

Special weather statement, Aug 31, 2:32 PM EDT, 35 minutes before

Special Weather Statement
National Weather Service Morristown TN
132 PM CDT Tue Aug 31 2021

TNZ082-311900-
Bledsoe TN-
132 PM CDT Tue Aug 31 2021

...A strong thunderstorm will impact portions of central Bledsoe
County through 200 PM CDT...

At 131 PM CDT, Doppler radar was tracking a strong thunderstorm near
Pikeville, moving north at 35 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Pikeville, Mount Crest and Fall Creek Falls State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3567 8532 3570 8528 3567 8504 3547 8523
      3550 8532
TIME...MOT...LOC 1831Z 196DEG 29KT 3553 8524

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

JLB

Special weather statement, Aug 31, 3:07 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Morristown TN
307 PM EDT Tue Aug 31 2021

TNZ083-084-311930-
Rhea TN-Meigs TN-
307 PM EDT Tue Aug 31 2021

...A strong thunderstorm will impact portions of south central Rhea
and west central Meigs Counties through 330 PM EDT...

At 306 PM EDT, Doppler radar was tracking a strong thunderstorm near
Dayton, moving north at 30 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Dayton, Old Washington and Evensville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3541 8492 3543 8498 3558 8499 3554 8480
TIME...MOT...LOC 1906Z 195DEG 28KT 3546 8493

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

JLB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 30, 8:01 PM EDT	Special Weather Statement	MRX	Anderson, Campbell, Morgan, Scott	59 min
Aug 30, 8:25 PM EDT	Special Weather Statement	MRX	Grainger, Jefferson, Knox, Sevier, Union	65 min
Aug 30, 8:42 PM EDT	Areal Flood Advisory	MRX	Anderson, Blount, Campbell, Cocke, Grainger, Jefferson and 5 more	2 hr
Aug 31, 9:39 AM EDT	River Flood Warning	MRX	Hamilton	20 hr
Aug 31, 10:23 AM EDT	Areal Flood Advisory	MRX	Bradley, Loudon, McMinn, Monroe, Polk	3 hr
Aug 31, 12:44 PM EDT	Areal Flood Advisory	MRX	Monroe, Polk	9 hr
Aug 31, 2:08 PM EDT	Special Weather Statement	MRX	Sequatchie	22 min
Aug 31, 2:10 PM EDT	Special Weather Statement	MRX	Bradley	20 min
Aug 31, 2:32 PM EDT	Special Weather Statement	MRX	Bledsoe	28 min
Aug 31, 3:23 PM EDT	Special Weather Statement	MRX	Rhea	37 min
Aug 31, 3:48 PM EDT	Special Weather Statement	MRX	Rhea	27 min
Aug 31, 4:43 PM EDT	Areal Flood Advisory	MRX	Hamilton, Marion, Sequatchie	2 hr
Aug 31, 5:16 PM EDT	Areal Flood Advisory	MRX	Knox	85 min
Aug 31, 5:24 PM EDT	Areal Flood Advisory	MRX	McMinn, Monroe, Polk	5 hr
Aug 31, 6:12 PM EDT	Areal Flood Advisory	MRX	Blount, Knox, Loudon, Monroe	4 hr
Aug 31, 6:20 PM EDT	Special Weather Statement	MRX	Carter, Johnson	40 min
Aug 31, 6:41 PM EDT	Flash Flood Warning	MRX	Knox	2 hr
Aug 31, 6:53 PM EDT	Areal Flood Advisory	MRX	Anderson, Knox	5 hr
Aug 31, 7:02 PM EDT	Areal Flood Advisory	MRX	Loudon, Monroe, Roane	3 hr

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.