Alert archive / Tennessee / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 113, NWS Nashville, TN

July 26, 2021Coffee County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Jul 26, 2021, 6:29 PM CDT for Coffee County, Tennessee. It was in force for 31 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: Jul 26, 2021, 6:29 PM CDT (23:29 UTC)
Expired: Jul 26, 2021, 7:00 PM CDT
In force: 31 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Coffee County, TN

The radar

The Northeast Alabama radar (KHTX), 72 km from the middle of the area, began a volume at 23:32 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, 11.5 hours before the alert went out and 81 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: 1186 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 939 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: -6 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

587 
WUUS54 KOHX 262329
SVROHX
TNC031-270000-
/O.NEW.KOHX.SV.W.0113.210726T2329Z-210727T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Nashville TN
629 PM CDT Mon Jul 26 2021

The National Weather Service in Nashville has issued a

* Severe Thunderstorm Warning for...
  Northern Coffee County in Middle Tennessee...

* Until 700 PM CDT.

* At 629 PM CDT, severe thunderstorms were located along a line
  extending from 14 miles southwest of Woodbury to 9 miles north of
  Manchester to 9 miles southwest of McMinnville, moving south at 15
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Manchester and Summitville. 

This includes Interstate 24 between mile markers 100 and 111.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3552 8624 3567 8623 3564 8606 3566 8598
      3565 8599 3565 8598 3561 8595 3557 8595
      3555 8592 3555 8591 3554 8590 3554 8588
      3551 8588 3548 8601
TIME...MOT...LOC 2329Z 338DEG 11KT 3564 8621 3560 8605 3562 8594 

HAIL...<.75IN
WIND...60MPH
 
$$

Whitehead

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 26, 10:57 AM CDT	Areal Flood Advisory	OHX	Davidson, Rutherford, Williamson	2 hr
Jul 26, 12:16 PM CDT	Special Weather Statement	OHX	Marshall	44 min
Jul 26, 12:34 PM CDT	Areal Flood Advisory	OHX	Lawrence, Wayne	116 min
Jul 26, 1:20 PM CDT	Special Weather Statement	OHX	Bedford	25 min
Jul 26, 3:38 PM CDT	Special Weather Statement	OHX	Smith	52 min
Jul 26, 4:26 PM CDT	Special Weather Statement	OHX	Cumberland	34 min
Jul 26, 4:55 PM CDT	Areal Flood Advisory	OHX	Cumberland	2 hr
Jul 26, 5:11 PM CDT	Special Weather Statement	OHX	Cumberland	34 min
Jul 26, 5:48 PM CDT	Special Weather Statement	OHX	Williamson	42 min
Jul 26, 5:55 PM CDT	Severe Thunderstorm Warning	OHX	Marshall, Maury, Williamson	16 min
Jul 26, 6:20 PM CDT	Special Weather Statement	OHX	Coffee	40 min
Jul 26, 6:33 PM CDT	Special Weather Statement	OHX	Van Buren	27 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2021 Every severe thunderstorm warning 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.