Alert archive / North Carolina / Tornado Warnings in 2020

Tornado Warning 35, NWS Wilmington, NC

October 11, 2020Columbus County, North Carolina

NWS Wilmington, NC issued this tornado warning at Oct 11, 2020, 6:19 PM EDT for Columbus County, North Carolina. It was in force for 26 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, 6:19 PM EDT (22:19 UTC)
Expired
Oct 11, 2020, 6:45 PM EDT
In force
26 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), 25 km from the middle of the area, began a volume at 22:18 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, 10.3 hours before the alert went out and 157 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-pSkew-T log-p diagram, Newport, NC at 12:00Z on 2020-10-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 12:00Z on 2020-10-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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.

625 
WFUS52 KILM 112219
TORILM
NCC047-112245-
/O.NEW.KILM.TO.W.0035.201011T2219Z-201011T2245Z/

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

The National Weather Service in Wilmington has issued a

* Tornado Warning for...
  East central Columbus County in southeastern North Carolina...

* Until 645 PM EDT.
    
* At 619 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Crusoe Island, or 13 miles southeast of
  Whiteville, moving northeast at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

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

* This dangerous storm will be near...
  Lake Waccamaw around 625 PM EDT.

Other locations impacted by this tornadic thunderstorm include
Bolton.

This includes US Route 74 between mile markers 411 and 413.
 
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 3435 7835 3421 7834 3421 7837 3419 7837
      3416 7841 3416 7849 3417 7850 3417 7851
      3416 7852 3416 7858 3423 7859
TIME...MOT...LOC 2219Z 240DEG 24KT 3421 7852 

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

$$

21
2 follow-up statements
263 
WWUS52 KILM 112226
SVSILM

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

NCC047-112245-
/O.CON.KILM.TO.W.0035.000000T0000Z-201011T2245Z/
Columbus NC-
626 PM EDT Sun Oct 11 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM EDT FOR EAST
CENTRAL COLUMBUS COUNTY...
        
At 626 PM EDT, a confirmed tornado was located near Lake Waccamaw, or
14 miles southeast of Whiteville, moving northeast at 30 mph.

HAZARD...TORNADO.

SOURCE...Radar confirmed tornado.

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

This tornadic thunderstorm will remain over mainly rural areas of
east central Columbus County, including the following locations...
Bolton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3435 7835 3421 7834 3421 7837 3419 7837
      3417 7840 3418 7851 3425 7855
TIME...MOT...LOC 2226Z 240DEG 24KT 3423 7847 

TORNADO...OBSERVED
HAIL...0.00IN

$$

21
409 
WWUS52 KILM 112239
SVSILM

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

NCC047-112247-
/O.EXP.KILM.TO.W.0035.000000T0000Z-201011T2245Z/
Columbus NC-
639 PM EDT Sun Oct 11 2020

...THE TORNADO WARNING FOR EAST CENTRAL COLUMBUS COUNTY WILL EXPIRE
AT 645 PM EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.

Remember, a Tornado Warning still remains in effect for northeastern 
Columbus County to cover the previously expiring warning.

LAT...LON 3435 7835 3421 7834 3421 7837 3419 7837
      3417 7840 3418 7851 3425 7855
TIME...MOT...LOC 2237Z 240DEG 24KT 3427 7839 

$$

21

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 11, 6:05 AM EDTSpecial Marine WarningILM28 min
Oct 11, 6:48 AM EDTSpecial Marine WarningILM27 min
Oct 11, 7:24 AM EDTSpecial Marine WarningILM36 min
Oct 11, 7:25 AM EDTSpecial Marine WarningILM35 min
Oct 11, 7:29 AM EDTSpecial Marine WarningILM31 min
Oct 11, 7:47 AM EDTAreal Flood AdvisoryILMBrunswick, Columbus, New Hanover, Pender3 hr
Oct 11, 11:32 AM EDTRiver Flood WarningILMRobeson23 hr
Oct 11, 5:06 PM EDTTornado WarningILMColumbus19 min
Oct 11, 5:27 PM EDTSpecial Weather StatementILMColumbus33 min
Oct 11, 5:43 PM EDTTornado WarningILMBrunswick, Columbus32 min
Oct 11, 6:37 PM EDTTornado WarningILMColumbus23 min

Nearby

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