Alert archive / North Carolina / Tornado Warnings in 2017

Tornado Warning 19, NWS Wilmington, NC

September 12, 2017Brunswick County, North Carolina

NWS Wilmington, NC issued this tornado warning at Sep 12, 2017, 5:27 AM EDT for Brunswick County, North Carolina. It was in force for 33 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: Sep 12, 2017, 5:27 AM EDT (09:27 UTC)
Expired: Sep 12, 2017, 6:00 AM EDT
In force: 33 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.0 in

County Brunswick County, NC

The radar

The Wilmington radar (KLTX), 37 km from the middle of the area, began a volume at 09:27 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 00:00Z, 9.5 hours before the alert went out and 143 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 213 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

908 
WFUS52 KILM 120927
TORILM
NCC019-121000-
/O.NEW.KILM.TO.W.0019.170912T0927Z-170912T1000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wilmington NC
527 AM EDT TUE SEP 12 2017

The National Weather Service in Wilmington has issued a

* Tornado Warning for...
  Southeastern Brunswick County in southeastern North Carolina...

* Until 600 AM EDT
    
* At 527 AM EDT, a severe thunderstorm capable of producing a 
  tornado was located just offshore Caswell Beach, moving north at 
  35 mph.

  HAZARD...Tornado. 

  SOURCE...Radar indicated rotation. 

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

* Locations impacted include...
  Oak Island, Caswell Beach, Bald Head Island, Yaupon Beach, Boiling
  Spring Lakes, St. James, Southport, Mill Creek, Long Beach, Bolivia
  and Dosher Memorial Hospital.

This includes US Route 17 in Brunswick County between mile markers 26
and 35.
 
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 3384 7796 3386 7801 3388 7800 3387 7802
      3389 7802 3391 7811 3391 7819 3413 7824
      3413 7799 3391 7795
TIME...MOT...LOC 0927Z 164DEG 29KT 3390 7807 

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

$$

HAWKINS

3 follow-up statements

339 
WWUS52 KILM 120939
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
539 AM EDT TUE SEP 12 2017

NCC019-121000-
/O.CON.KILM.TO.W.0019.000000T0000Z-170912T1000Z/
Brunswick NC-
539 AM EDT TUE SEP 12 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM EDT FOR
SOUTHEASTERN BRUNSWICK COUNTY...
    
At 537 AM EDT, a severe thunderstorm capable of producing a tornado 
was located 1 mile north of Yaupon Beach or 9 miles south of 
Bolivia, moving north at 20 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Oak Island, Caswell Beach, Bald Head Island, Yaupon Beach, Boiling
Spring Lakes, St. James, Southport, Mill Creek, Long Beach, Bolivia
and Dosher Memorial Hospital.

This includes US Route 17 in Brunswick County between mile markers 26
and 35.
 
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 3384 7796 3386 7801 3388 7800 3387 7802
      3389 7802 3391 7811 3391 7819 3413 7824
      3413 7799 3391 7795
TIME...MOT...LOC 0937Z 161DEG 16KT 3393 7808 

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

$$

HAWKINS

279 
WWUS52 KILM 120954
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
554 AM EDT TUE SEP 12 2017

NCC019-121000-
/O.CON.KILM.TO.W.0019.000000T0000Z-170912T1000Z/
Brunswick NC-
554 AM EDT TUE SEP 12 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 AM EDT FOR
SOUTHEASTERN BRUNSWICK COUNTY...
    
At 553 AM EDT, a severe thunderstorm capable of producing a tornado
was located near Mill Creek, or 10 miles north of Oak Island, moving
northwest at 30 mph.

HAZARD...Tornado. 

SOURCE...Radar indicated rotation. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely. 

Locations impacted include...
Oak Island, Caswell Beach, Bald Head Island, Yaupon Beach, Boiling
Spring Lakes, St. James, Southport, Mill Creek, Long Beach, Bolivia
and Dosher Memorial Hospital.

This includes US Route 17 in Brunswick County between mile markers 26
and 35.
 
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 3384 7796 3386 7801 3388 7800 3387 7802
      3389 7802 3391 7811 3391 7819 3413 7824
      3413 7799 3391 7795
TIME...MOT...LOC 0953Z 151DEG 42KT 3406 7814 

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

$$

HAWKINS

906 
WWUS52 KILM 121000
SVSILM

Severe Weather Statement
National Weather Service Wilmington NC
600 AM EDT TUE SEP 12 2017

NCC019-121009-
/O.EXP.KILM.TO.W.0019.000000T0000Z-170912T1000Z/
Brunswick NC-
600 AM EDT TUE SEP 12 2017

...THE TORNADO WARNING FOR SOUTHEASTERN BRUNSWICK COUNTY WILL EXPIRE
AT 600 AM EDT...
                
The storm which prompted the warning has weakened below severe
limits. Therefore the warning will be allowed to expire.

LAT...LON 3384 7796 3386 7801 3388 7800 3387 7802
      3389 7802 3391 7811 3391 7819 3413 7824
      3413 7799 3391 7795
TIME...MOT...LOC 0959Z 164DEG 29KT 3409 7815 

$$

HAWKINS

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 12, 3:00 AM EDT	Areal Flood Advisory	ILM	Brunswick, Columbus, Robeson	3 hr
Sep 12, 4:46 AM EDT	Areal Flood Advisory	ILM	Brunswick, Columbus	3 hr
Sep 12, 5:10 AM EDT	Coastal Flood Advisory	ILM	New Hanover	12 hr
Sep 12, 5:51 AM EDT	Areal Flood Advisory	ILM	Brunswick, Columbus	114 min
Sep 12, 7:17 AM EDT	Areal Flood Advisory	ILM	Bladen, Brunswick, New Hanover, Pender	118 min
Sep 12, 9:38 AM EDT	Areal Flood Advisory	ILM	Pender	82 min

Nearby

Tornado Warnings in North Carolina, 2017 Every tornado warning in 2017 Tornadoes in 2017

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.