Alert archive / North Carolina / Tornado Warnings in 2011
Tornado Warning 28, NWS Wilmington, NC
NWS Wilmington, NC issued this tornado warning at Aug 18, 2011, 10:30 AM EDT for New Hanover County, North Carolina. It was in force for 30 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
- Aug 18, 2011, 10:30 AM EDT (14:30 UTC)
- Expired
- Aug 18, 2011, 11:00 AM EDT
- In force
- 30 min
- Issued by
- NWS Wilmington, NC
- Area
- Storm-based polygon
County New Hanover County, NC
The radar
The Wilmington radar (KLTX), 49 km from the middle of the area, began a volume at 14:34 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, 2.5 hours before the alert went out and 125 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.
- Mixed-layer CAPE
- 1390 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 738 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 28 m²/s²
- 0-3 km storm-relative helicity
- 98 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted, in the capitals the NWS used until 2016.
350
WFUS52 KILM 181430
TORILM
NCC129-181500-
/O.NEW.KILM.TO.W.0028.110818T1430Z-110818T1500Z/
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
1030 AM EDT THU AUG 18 2011
THE NATIONAL WEATHER SERVICE IN WILMINGTON NC HAS ISSUED A
* TORNADO WARNING FOR...
SOUTHERN NEW HANOVER COUNTY IN SOUTHEAST NORTH CAROLINA
* UNTIL 1100 AM EDT
* AT 1025 AM EDT...THE CAROLINA BEACH POLICE HAS REPORT A SEVERAL
WATERSPOUT CONITUNING TO MOVE ONSHORE NEAR ALABAMA AVENUE.
THESE TORNADOS IS DRIFTING TO THE SOUTHWEST.
* SOME LOCATIONS IN THE WARNING INCLUDE...
CAROLINA BEACH
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
&&
PLEASE REPORT HAIL...DOWNED TREES OR DAMAGING WINDS TO THE NATIONAL
WEATHER SERVICE IN WILMINGTON NC...TOLL FREE AT 877-633-6772...WHEN
YOU CAN DO SO SAFELY.
LAT...LON 3405 7789 3402 7789 3402 7790 3403 7791
3403 7793 3407 7792 3407 7788
TIME...MOT...LOC 1429Z 016DEG 1KT 3404 7789
$$
HAWKINS1 follow-up statement
151
WWUS52 KILM 181500
SVSILM
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1100 AM EDT THU AUG 18 2011
NCC129-181507-
/O.EXP.KILM.TO.W.0028.000000T0000Z-110818T1500Z/
NEW HANOVER NC-
1100 AM EDT THU AUG 18 2011
...THE TORNADO WARNING FOR SOUTHERN NEW HANOVER COUNTY WILL
EXPIRE AT 1100 AM EDT...
AT 1059 AM EDT...THE THUNDERSTORM PRODUCING THE POSSIBLE TORNADO
WHICH PROMPTED THE WARNING HAS WEAKENED...THUS THE TORNADO WARNING
WAS ALLOWED TO EXPIRE.
PLEASE REPORT DOWNED TREES OR DAMAGING WINDS TO THE NATIONAL WEATHER
SERVICE IN WILMINGTON NC...TOLL FREE AT 877-633-6772...WHEN YOU CAN
DO SO SAFELY.
LAT...LON 3405 7789 3402 7789 3402 7790 3403 7791
3403 7793 3407 7792 3407 7788
TIME...MOT...LOC 1457Z 016DEG 1KT 3403 7789
$$
HAWKINSThe office that day
Everything else NWS Wilmington, NC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 18, 10:16 AM EDT | Tornado Warning | ILM | New Hanover | 14 min |
| Aug 18, 11:06 AM EDT | Special Weather Statement | ILM | Brunswick, New Hanover | 54 min |
| Aug 18, 11:32 AM EDT | Areal Flood Advisory | ILM | Brunswick, New Hanover | 102 min |
| Aug 18, 12:39 PM EDT | Areal Flood Warning | ILM | New Hanover | 34 min |
Nearby
Tornado Warnings in North Carolina, 2011Every tornado warning in 2011Tornadoes in 2011
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.