Alert archive / North Carolina / Tornado Warnings in 2020

Tornado Warning 33, NWS Wilmington, NC

October 11, 2020Columbus County, North Carolina

NWS Wilmington, NC issued this tornado warning at Oct 11, 2020, 5:06 PM EDT for Columbus County, North Carolina. It was in force for 19 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: Oct 11, 2020, 5:06 PM EDT (21:06 UTC)
Expired: Oct 11, 2020, 5:25 PM EDT
In force: 19 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Columbus County, NC

The radar

The Wilmington radar (KLTX), 37 km from the middle of the area, began a volume at 21:08 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

Newport, NC (KMHX), launched 12:00Z, 9.1 hours before the alert went out and 174 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: 2 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 940 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 112 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

862 
WFUS52 KILM 112106
TORILM
NCC047-112145-
/O.NEW.KILM.TO.W.0033.201011T2106Z-201011T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington NC
506 PM EDT Sun Oct 11 2020

The National Weather Service in Wilmington has issued a

* Tornado Warning for...
  Central Columbus County in southeastern North Carolina...

* Until 545 PM EDT.
    
* At 506 PM EDT, a severe thunderstorm capable of producing a tornado
  was located near Williams, or 8 miles south of Whiteville, moving
  northeast at 15 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Expect damage to mobile homes, roofs, and vehicles.

* This dangerous storm will be near...
  Whiteville and Redbug around 535 PM EDT.
  Hallsboro around 540 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Brunswick and Columbus Regional Healthcare System.

This includes US Route 74 between mile markers 392 and 402.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3418 7868 3420 7876 3438 7870 3433 7852
TIME...MOT...LOC 2106Z 204DEG 15KT 3421 7870 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

21

2 follow-up statements

416 
WWUS52 KILM 112114
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
514 PM EDT Sun Oct 11 2020

NCC047-112145-
/O.CON.KILM.TO.W.0033.000000T0000Z-201011T2145Z/
Columbus NC-
514 PM EDT Sun Oct 11 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 545 PM EDT FOR CENTRAL
COLUMBUS COUNTY...
    
At 514 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Williams, or near Whiteville, moving northeast at 15
mph.

HAZARD...TORNADO.

SOURCE...Radar indicated rotation.

IMPACT...Expect damage to mobile homes, roofs, and vehicles.

This dangerous storm will be near...
  Whiteville and Redbug around 535 PM EDT.
  Hallsboro around 540 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Brunswick and Columbus Regional Healthcare System.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3421 7866 3423 7875 3438 7870 3433 7852
TIME...MOT...LOC 2114Z 204DEG 15KT 3424 7868 

TORNADO...RADAR INDICATED
HAIL...0.00IN

$$

21

217 
WWUS52 KILM 112125
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
525 PM EDT Sun Oct 11 2020

NCC047-112135-
/O.CAN.KILM.TO.W.0033.000000T0000Z-201011T2145Z/
Columbus NC-
525 PM EDT Sun Oct 11 2020

...THE TORNADO WARNING FOR CENTRAL COLUMBUS COUNTY IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been cancelled.

LAT...LON 3421 7866 3423 7875 3438 7870 3433 7852
TIME...MOT...LOC 2123Z 204DEG 15KT 3428 7866 

$$

21

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 11, 6:05 AM EDT	Special Marine Warning	ILM		28 min
Oct 11, 6:48 AM EDT	Special Marine Warning	ILM		27 min
Oct 11, 7:24 AM EDT	Special Marine Warning	ILM		36 min
Oct 11, 7:25 AM EDT	Special Marine Warning	ILM		35 min
Oct 11, 7:29 AM EDT	Special Marine Warning	ILM		31 min
Oct 11, 7:47 AM EDT	Areal Flood Advisory	ILM	Brunswick, Columbus, New Hanover, Pender	3 hr
Oct 11, 11:32 AM EDT	River Flood Warning	ILM	Robeson	23 hr
Oct 11, 5:27 PM EDT	Special Weather Statement	ILM	Columbus	33 min
Oct 11, 5:43 PM EDT	Tornado Warning	ILM	Brunswick, Columbus	32 min
Oct 11, 6:19 PM EDT	Tornado Warning	ILM	Columbus	26 min
Oct 11, 6:37 PM EDT	Tornado Warning	ILM	Columbus	23 min

Nearby

Tornado Warnings in North Carolina, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.