Alert archive / Tennessee / Special Weather Statements in 2021

Special Weather Statement, NWS Morristown, TN

June 7, 2021Greene County, Tennessee

NWS Morristown, TN issued this special weather statement at Jun 7, 2021, 2:20 PM EDT for Greene County, Tennessee. It was in force for 40 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 7, 2021, 2:20 PM EDT (18:20 UTC)
Expired: Jun 7, 2021, 3:00 PM EDT
In force: 40 min
Issued by: NWS Morristown, TN

County Greene County, TN

The radar

The Knoxville radar (KMRX), 69 km from the middle of the area, began a volume at 18:20 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.3 hours before the alert went out and 252 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: 80 J/kg
Mixed-layer CIN: -84 J/kg
Mixed-layer LCL: 796 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 33 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 Jun 7, 2:13 PM EDT, 7 minutes earlier.

Area forecast discussion, Jun 7, 2:13 PM EDT, 7 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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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Hazardous weather outlook, Jun 7, 3:02 AM EDT, 11 hours 18 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
302 AM EDT Mon Jun 7 2021

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-080715-
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-
302 AM EDT Mon Jun 7 2021 /202 AM CDT Mon Jun 7 2021/

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

.DAY ONE...Today and Tonight

Showers and thunderstorms today may be capable of producing heavy
rainfall, and storms that track repeatedly over the same areas
could cause localized flooding.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday

Showers and thunderstorms will produce heavy rainfall in
localized areas this week, so storms that track repeatedly over
the same areas could cause localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not needed at this time.

In the hours before

Special weather statement, Jun 7, 1:04 PM EDT, 1 hour 16 minutes before

Special Weather Statement
National Weather Service Morristown TN
104 PM EDT Mon Jun 7 2021

TNZ038-039-070-071745-
Jefferson TN-Hamblen TN-Grainger TN-
104 PM EDT Mon Jun 7 2021

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN JEFFERSON...GRAINGER
AND NORTHWESTERN HAMBLEN COUNTIES UNTIL 145 PM EDT...

At 101 PM EDT, Doppler radar was tracking a line of showers and a
possible thunderstorm along a line extending from 8 miles southwest
of Rutledge to New Market to 7 miles southwest of Jefferson City.
Movement was northeast at 25 mph.

Winds in excess of 30 mph will be possible with this area of showers
and thunderstorm.

Locations impacted include...
Morristown, Jefferson City, Rutledge, Bean Station, New Market, Thorn
Hill, Panther Creek State Park, Alpha, Joppa and Buffalo Springs.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall is also occurring with these showers and storms, and
may lead to localized flooding. Do not drive your vehicle through
flooded roadways.

&&

LAT...LON 3640 8335 3625 8326 3618 8328 3603 8362
      3607 8362 3622 8370
TIME...MOT...LOC 1701Z 231DEG 20KT 3619 8362 3610 8358 3607 8360

TD

Special weather statement, Jun 7, 2:20 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Morristown TN
220 PM EDT Mon Jun 7 2021

TNZ016-042-044-071900-
Washington TN-Northwest Greene TN-Hawkins TN-
220 PM EDT Mon Jun 7 2021

...SIGNIFICANT WEATHER ADVISORY FOR EAST CENTRAL HAWKINS...
NORTHWESTERN WASHINGTON AND NORTHEASTERN GREENE COUNTIES UNTIL 300 PM
EDT...

At 220 PM EDT, Doppler radar was tracking a strong thunderstorm near
Greeneville, moving northeast at 25 mph.

Pea size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Greeneville, Tusculum, Church Hill, Mosheim, Baileyton, Fall Branch,
Jearoldstown and Bays Mountain Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3648 8266 3646 8270 3643 8268 3644 8266
      3643 8262 3642 8260 3643 8258 3637 8251
      3611 8282 3623 8299 3652 8271
TIME...MOT...LOC 1820Z 220DEG 20KT 3624 8285

TD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 7, 10:45 AM EDT	Areal Flood Advisory	MRX	Loudon, McMinn, Monroe, Polk	2 hr
Jun 7, 1:04 PM EDT	Special Weather Statement	MRX	Grainger	41 min
Jun 7, 1:32 PM EDT	Areal Flood Advisory	MRX	Jefferson, Sevier	2 hr
Jun 7, 2:56 PM EDT	Areal Flood Advisory	MRX	Hancock, Hawkins	3 hr
Jun 7, 3:39 PM EDT	Special Weather Statement	MRX	Sullivan	51 min
Jun 7, 3:59 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Johnson, Sullivan	61 min
Jun 7, 4:52 PM EDT	Special Weather Statement	MRX	Russell, Washington	38 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.