Alert archive / Tennessee / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 155, NWS Morristown, TN

July 21, 20185 counties in Tennessee

NWS Morristown, TN issued this severe thunderstorm warning at Jul 21, 2018, 2:11 AM EDT for 5 counties in Tennessee. It was in force for 52 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 21, 2018, 2:11 AM EDT (06:11 UTC)
Expired: Jul 21, 2018, 3:03 AM EDT
In force: 52 min
Issued by: NWS Morristown, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Anderson County, TN, Campbell County, TN, Morgan County, TN, Roane County, TN, Scott County, TN

The radar

The Knoxville radar (KMRX), 97 km from the middle of the area, began a volume at 06:15 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.

What was reported inside it

Time	Report	Where	Remark
Jul 21, 2:40 AM EDT	TSTM WND DMG	Rockwood, TN	SEVERAL TREES DOWN AROUND THE ROCKWOOD AREA

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 29 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 20, 8:02 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 6.2 hours before the alert went out and 193 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: 3305 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 1217 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 169 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 11.6

Open this sounding in Storm Lab

The text

As transmitted.

886 
WUUS54 KMRX 210611
SVRMRX
TNC001-013-129-145-151-210715-
/O.NEW.KMRX.SV.W.0155.180721T0611Z-180721T0715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Morristown TN
211 AM EDT SAT JUL 21 2018

The National Weather Service in Morristown has issued a

* Severe Thunderstorm Warning for...
  Morgan County in east Tennessee...
  Anderson County in east Tennessee...
  Southwestern Campbell County in east Tennessee...
  Roane County in east Tennessee...
  Southern Scott County in east Tennessee...

* Until 315 AM EDT.

* At 210 AM EDT, a severe thunderstorm was located 13 miles southeast
  of Jamestown, moving southeast at 40 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Oak Ridge, Clinton, Kingston, Rockwood, Wartburg, Fairview, Oliver
  Springs, Huntsville, Helenwood, Midtown, Harriman, Sunbright,
  Oakdale, Rugby, Coalfield, High Point, Smokey Junction, Honey Creek
  State Park, Rosedale and Robbins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Large hail and damaging winds and continuous cloud to ground 
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

A Tornado Watch remains in effect until 400 AM EDT for east
Tennessee.

LAT...LON 3569 8461 3585 8474 3591 8468 3598 8471
      3616 8491 3621 8491 3628 8488 3630 8480
      3647 8461 3610 8405 3607 8409 3603 8406
      3599 8415 3599 8419 3595 8425 3593 8424
      3594 8427 3590 8426 3589 8433 3585 8434
TIME...MOT...LOC 0610Z 311DEG 34KT 3630 8476 

HAIL...0.75IN
WIND...60MPH
 
$$

DH

2 follow-up statements

140 
WWUS54 KMRX 210643
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
243 AM EDT SAT JUL 21 2018

TNC001-013-129-145-151-210715-
/O.CON.KMRX.SV.W.0155.000000T0000Z-180721T0715Z/
Morgan TN-Anderson TN-Campbell TN-Roane TN-Scott TN-
243 AM EDT SAT JUL 21 2018

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 AM EDT
FOR MORGAN...ANDERSON...SOUTHWESTERN CAMPBELL...ROANE AND
SOUTHEASTERN SCOTT COUNTIES...

At 243 AM EDT, a severe thunderstorm was located over Midtown, or
near Kingston, moving east at 35 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Oak Ridge, Clinton, Kingston, Rockwood, Wartburg, Fairview, Oliver
Springs, Midtown, Harriman, Sunbright, Oakdale, Coalfield, Bradbury,
Smokey Junction, Pine Orchard, Rosedale, Dearmond, Frozen Head State
Park, Slick Rock and Petros.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

A Tornado Watch remains in effect until 400 AM EDT for east
Tennessee.

LAT...LON 3569 8461 3585 8474 3591 8468 3598 8471
      3603 8477 3608 8474 3614 8471 3623 8469
      3639 8449 3610 8405 3607 8409 3603 8406
      3599 8415 3599 8419 3595 8425 3593 8424
      3594 8427 3590 8426 3589 8433 3585 8434
TIME...MOT...LOC 0643Z 282DEG 30KT 3590 8457 

HAIL...0.75IN
WIND...60MPH
 
$$

DH

917 
WWUS54 KMRX 210703
SVSMRX

Severe Weather Statement
National Weather Service Morristown TN
303 AM EDT SAT JUL 21 2018

TNC001-013-129-145-151-210712-
/O.CAN.KMRX.SV.W.0155.000000T0000Z-180721T0715Z/
Morgan TN-Anderson TN-Campbell TN-Roane TN-Scott TN-
303 AM EDT SAT JUL 21 2018

...THE SEVERE THUNDERSTORM WARNING FOR MORGAN...ANDERSON...
SOUTHWESTERN CAMPBELL...ROANE AND SOUTHEASTERN SCOTT COUNTIES IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 AM EDT for
east Tennessee.

LAT...LON 3569 8461 3585 8474 3591 8468 3598 8471
      3603 8477 3608 8474 3614 8471 3623 8469
      3639 8449 3610 8405 3607 8409 3603 8406
      3599 8415 3599 8419 3595 8425 3593 8424
      3594 8427 3590 8426 3589 8433 3585 8434
TIME...MOT...LOC 0700Z 311DEG 34KT 3578 8440 

$$

DH

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jul 21, 1:40 AM EDT, 31 minutes earlier.

Area forecast discussion, Jul 21, 1:40 AM EDT, 31 minutes before

Area Forecast Discussion
National Weather Service Morristown TN
140 AM EDT Sat Jul 21 2018

.AVIATION...Will remain in a rather active weather pattern through
much of the TAF period.  Ongoing convection will continue to provide
bands of showers and thunderstorms moving through the area for the
rest of the night. Some of these storms will be capable of strong
gusty winds...hail and heavy rains.  When storms move through a TAF
site...be prepared for MVFR to IFR conditions for low clouds and
reduced VIS as well as erratic and variable gusty winds.  May see a
bit of a break in activity with VFR conditions with mid to high
clouds during the mid morning hours.  Another round of convection is
expected Saturday afternoon.  Scattered convection will decrease in
coverage and intensity Saturday evening with the best chance north
of TYS.

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...None.
TN...None.
VA...None.
&&

mjb

Hazardous weather outlook, Jul 20, 3:21 PM EDT, 10 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Morristown TN
321 PM EDT Fri Jul 20 2018

NCZ060-061-TNZ012>018-035>047-067>074-081>087-098>102-VAZ001-002-
005-006-008-211930-
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-NW 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-Russell-Washington-
321 PM EDT Fri Jul 20 2018 /221 PM CDT Fri Jul 20 2018/

This Hazardous Weather Outlook is for portions of Southwest North
Carolina...East Tennessee and Southwest Virginia.

.DAY ONE...This Afternoon and Tonight

Showers and thunderstorms are likely tonight across much of the
area, some of which may reach severe levels. The strongest storms
are expected to move out of Kentucky into middle and east
Tennessee late tonight, moving quickly into southeast Tennessee
and southwest North Carolina into early morning Saturday. Some of
these thunderstorms will be capable of producing damaging winds,
large hail, and brief heavy rainfall. An isolated tornado cannot
be ruled out, particularly across southern portions of the
Tennessee Valley.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday

The atmosphere will remain unstable into Saturday and strong to
severe thunderstorms will again be possible Saturday afternoon
into the evening. The main threats with any stronger storms will
be damaging winds, large hail and brief heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed tonight.

In the hours before

Local storm report, Jul 21, 1:46 AM EDT, 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
146 AM EDT SAT JUL 21 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0125 AM     TSTM WND DMG     PIKEVILLE               35.61N 85.20W
07/21/2018                   BLEDSOE            TN   911 CALL CENTER

            SEVERAL TREES DOWN AND A POWER LINE DOWN ACROSS THE ROAD.

&&

Local storm report, Jul 21, 1:55 AM EDT, 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
155 AM EDT SAT JUL 21 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0115 AM     TSTM WND DMG     BENTON                  35.18N 84.65W
07/21/2018                   POLK               TN   911 CALL CENTER

            2 TREES DOWN HIGHWAY 64.

&&

Local storm report, Jul 21, 2:03 AM EDT, 8 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
203 AM EDT SAT JUL 21 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0136 AM     HAIL             6 WSW CHARLESTON        35.27N 84.86W
07/21/2018  E1.00 INCH       BRADLEY            TN   AMATEUR RADIO

&&

ANDERSON

Local storm report, Jul 21, 2:04 AM EDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
204 AM EDT SAT JUL 21 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0154 AM     TSTM WND DMG     CALHOUN                 35.30N 84.75W
07/21/2018                   MCMINN             TN   911 CALL CENTER

            2 TREES DOWN ON THE SOUTHERN END OF MCMINN COUNTY.

&&

Local storm report, Jul 21, 2:06 AM EDT, 5 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE MORRISTOWN TN
206 AM EDT SAT JUL 21 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0150 AM     TSTM WND DMG     HUNTSVILLE              36.41N 84.49W
07/21/2018                   SCOTT              TN   911 CALL CENTER

            A FEW TREES DOWN NEAR HUNTSVILLE

&&

Local storm report, Jul 21, 2:07 AM EDT, 4 minutes before

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE MORRISTOWN TN
207 AM EDT SAT JUL 21 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0933 PM     TSTM WND DMG     JONESVILLE              36.69N 83.12W
07/20/2018                   LEE                VA   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS THE COUNTY.

0938 PM     TSTM WND DMG     PENNINGTON GAP          36.76N 83.03W
07/20/2018                   LEE                VA   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS THE COUNTY.

0940 PM     TSTM WND DMG     LA FOLLETTE             36.37N 84.13W
07/20/2018                   CAMPBELL           TN   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS THE COUNTY.

0949 PM     TSTM WND DMG     LA FOLLETTE             36.37N 84.13W
07/20/2018                   CAMPBELL           TN   911 CALL CENTER

            TREE DOWN ON SOUTH HIGHWAY 25.

1023 PM     TSTM WND DMG     BEAN STATION            36.34N 83.28W
07/20/2018                   GRAINGER           TN   911 CALL CENTER

            SEVERAL TREES DOWN IN GRAINGER COUNTY, TENNESSEE.

1027 PM     TSTM WND DMG     MAYNARDVILLE            36.25N 83.81W
07/20/2018                   UNION              TN   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS THE MAYNARDVILLE, TENNESEE
            AREA.

1038 PM     TSTM WND DMG     KINGSPORT               36.53N 82.56W
07/20/2018                   SULLIVAN           TN   AMATEUR RADIO

            TRAFFIC SIGNALS AND WIRES DOWN IN KINGSPORT DUE TO THE
            HIGH WINDS.

1045 PM     TSTM WND DMG     HALLS                   36.08N 83.93W
07/20/2018                   KNOX               TN   911 CALL CENTER

            SEVERAL TREES DOWN. ONE TREE OVER A CAR.

1050 PM     TSTM WND GST     4 NE MORRISTOWN         36.26N 83.25W
07/20/2018  M73.00 MPH       HAMBLEN            TN   AMATEUR RADIO

            MEASURED REPORT OF 73 MPH AT WHITESBURG, TN.

1112 PM     TSTM WND DMG     ELIZABETHTON            36.34N 82.23W
07/20/2018                   CARTER             TN   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS CARTER COUNTY, TENNESSEE.

1131 PM     TSTM WND DMG     COSBY                   35.81N 83.25W
07/20/2018                   COCKE              TN   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS THE COSBY AREA DUE TO HIGH
            WINDS.

1136 PM     TSTM WND DMG     5 SW MOUNTAIN CITY      36.42N 81.87W
07/20/2018                   JOHNSON            TN   911 CALL CENTER

            SEVERAL TREES DOWN AROUND THE COMMUNITY OF BUTLER,
            TENNESSEE.

1206 AM     TSTM WND DMG     DECATUR                 35.53N 84.79W
07/21/2018                   MEIGS              TN   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS THE CITY OF DECATUR, TENNESSEE.

1220 AM     TSTM WND DMG     SPRING CITY             35.69N 84.86W
07/21/2018                   RHEA               TN   911 CALL CENTER

            NUMEROUS TREES AND POWER LINES DOWN ACROSS THE NORTHERN
            HALF OF THE COUNTY. PENNY SIZE HAIL AS WELL.

1235 AM     TSTM WND DMG     PIKEVILLE               35.61N 85.20W
07/21/2018                   BLEDSOE            TN   911 CALL CENTER

            SEVERAL TREES DOWN ACROSS THE PIKEVILLE, TN AREA.

1239 AM     TSTM WND DMG     DECATUR                 35.53N 84.79W
07/21/2018                   MEIGS              TN   911 CALL CENTER

            TREES DOWN COUNTY-WIDE ACROSS MEIGS COUNTY, TENNESSEE.

0110 AM     TSTM WND DMG     DAYTON                  35.49N 85.01W
07/21/2018                   RHEA               TN   911 CALL CENTER

            MULTIPLE TREES DOWN.

0115 AM     TSTM WND DMG     BENTON                  35.18N 84.65W
07/21/2018                   POLK               TN   911 CALL CENTER

            2 TREES DOWN HIGHWAY 64.

0125 AM     TSTM WND DMG     PIKEVILLE               35.61N 85.20W
07/21/2018                   BLEDSOE            TN   911 CALL CENTER

            SEVERAL TREES DOWN AND A POWER LINE DOWN ACROSS THE ROAD.

0136 AM     HAIL             6 WSW CHARLESTON        35.27N 84.86W
07/21/2018  E1.00 INCH       BRADLEY            TN   AMATEUR RADIO

0150 AM     TSTM WND DMG     HUNTSVILLE              36.41N 84.49W
07/21/2018                   SCOTT              TN   911 CALL CENTER

            A FEW TREES DOWN NEAR HUNTSVILLE

0154 AM     TSTM WND DMG     CALHOUN                 35.30N 84.75W
07/21/2018                   MCMINN             TN   911 CALL CENTER

            2 TREES DOWN ON THE SOUTHERN END OF MCMINN COUNTY.

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 20, 9:02 PM EDT	Severe Thunderstorm Warning	MRX	Claiborne, Hancock	58 min
Jul 20, 9:12 PM EDT	Severe Thunderstorm Warning	MRX	Campbell, Claiborne, Scott	48 min
Jul 20, 9:42 PM EDT	Severe Thunderstorm Warning	MRX	Grainger, Hamblen, Hawkins	63 min
Jul 20, 9:56 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Campbell, Claiborne, Union	49 min
Jul 20, 10:10 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Greene, Jefferson, Sullivan, Unicoi, Washington	65 min
Jul 20, 10:17 PM EDT	Severe Thunderstorm Warning	MRX	Anderson, Blount, Knox, Sevier	58 min
Jul 20, 10:31 PM EDT	Tornado Warning	MRX	Bledsoe, Rhea	44 min
Jul 20, 10:44 PM EDT	Severe Thunderstorm Warning	MRX	Hamblen	16 min
Jul 20, 10:48 PM EDT	Severe Thunderstorm Warning	MRX	Carter, Johnson, Unicoi	57 min
Jul 20, 11:10 PM EDT	Tornado Warning	MRX	Bledsoe, Meigs, Rhea	50 min
Jul 20, 11:13 PM EDT	Severe Thunderstorm Warning	MRX	Cocke, Sevier	32 min
Jul 20, 11:18 PM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Rhea	42 min
Jul 20, 11:42 PM EDT	Severe Thunderstorm Warning	MRX	Bradley, McMinn, Meigs, Rhea	48 min
Jul 20, 11:47 PM EDT	Areal Flood Advisory	MRX	Bledsoe, Meigs, Rhea, Roane	3 hr
Jul 21, 12:02 AM EDT	Special Weather Statement	MRX	Bledsoe	43 min
Jul 21, 12:11 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Hamilton, Rhea, Sequatchie	49 min
Jul 21, 12:14 AM EDT	Special Weather Statement	MRX	Scott	46 min
Jul 21, 12:24 AM EDT	Severe Thunderstorm Warning	MRX	Bradley, McMinn, Meigs, Polk	51 min
Jul 21, 12:55 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Hamilton, Meigs, Rhea	50 min
Jul 21, 12:58 AM EDT	Areal Flood Advisory	MRX	McMinn, Meigs, Rhea	3 hr
Jul 21, 12:58 AM EDT	Severe Thunderstorm Warning	MRX	Polk	62 min
Jul 21, 1:16 AM EDT	Areal Flood Advisory	MRX	Bledsoe, Rhea	3 hr
Jul 21, 1:21 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Rhea	39 min
Jul 21, 1:27 AM EDT	Severe Thunderstorm Warning	MRX	Anderson, Campbell, Claiborne, Scott	48 min
Jul 21, 1:28 AM EDT	Severe Thunderstorm Warning	MRX	Bradley, McMinn	47 min
Jul 21, 2:02 AM EDT	Severe Thunderstorm Warning	MRX	Bradley, Polk	28 min
Jul 21, 2:16 AM EDT	Severe Thunderstorm Warning	MRX	Anderson, Campbell, Claiborne, Grainger, Knox, Union	59 min
Jul 21, 2:39 AM EDT	Areal Flood Advisory	MRX	Bradley, McMinn, Polk	3 hr
Jul 21, 2:54 AM EDT	Special Weather Statement	MRX	Blount, Loudon, Roane	66 min
Jul 21, 3:06 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Rhea	39 min
Jul 21, 3:10 AM EDT	Special Weather Statement	MRX	Cocke, Grainger, Hamblen, Jefferson	50 min
Jul 21, 3:30 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Hamilton, Meigs, Rhea	45 min
Jul 21, 3:36 AM EDT	Areal Flood Warning	MRX	Bledsoe, Bradley, Hamilton, McMinn, Meigs, Rhea	3 hr
Jul 21, 3:41 AM EDT	Severe Thunderstorm Warning	MRX	Hamilton, Marion, Sequatchie	48 min
Jul 21, 3:53 AM EDT	Severe Thunderstorm Warning	MRX	McMinn, Monroe	41 min
Jul 21, 4:05 AM EDT	Severe Thunderstorm Warning	MRX	Bradley, Hamilton, McMinn, Polk	40 min
Jul 21, 4:33 AM EDT	Areal Flood Advisory	MRX	Bradley, Hamilton, Marion, Polk	117 min
Jul 21, 6:39 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe	36 min
Jul 21, 7:05 AM EDT	Severe Thunderstorm Warning	MRX	Bledsoe, Hamilton, Meigs, Rhea	25 min
Jul 21, 7:24 AM EDT	Special Weather Statement	MRX	Bradley, Polk	36 min
Jul 21, 4:06 PM EDT	Special Weather Statement	MRX	Knox	39 min
Jul 21, 4:17 PM EDT	Special Weather Statement	MRX	Monroe	43 min
Jul 21, 4:45 PM EDT	Special Weather Statement	MRX	Hancock, Hawkins	60 min
Jul 21, 4:47 PM EDT	Special Weather Statement	MRX	Sevier	58 min
Jul 21, 5:12 PM EDT	Special Weather Statement	MRX	Bradley	63 min
Jul 21, 5:19 PM EDT	Severe Thunderstorm Warning	MRX	Bradley, Hamilton, McMinn, Meigs	56 min
Jul 21, 5:33 PM EDT	Special Weather Statement	MRX	Monroe	42 min
Jul 21, 5:44 PM EDT	Special Weather Statement	MRX	Grainger	46 min
Jul 21, 5:49 PM EDT	Special Weather Statement	MRX	Bradley	26 min
Jul 21, 5:53 PM EDT	Severe Thunderstorm Warning	MRX	Bradley, Hamilton	37 min
Jul 21, 6:07 PM EDT	Special Weather Statement	MRX	Polk	53 min
Jul 21, 6:24 PM EDT	Special Weather Statement	MRX	Monroe	51 min
Jul 21, 6:26 PM EDT	Severe Thunderstorm Warning	MRX	Polk	49 min
Jul 21, 7:00 PM EDT	Special Weather Statement	MRX	Blount	30 min
Jul 21, 7:15 PM EDT	Severe Thunderstorm Warning	MRX	Blount, Sevier	34 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2018 Every severe thunderstorm warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.