Alert archive / North Carolina / Tornado Warnings in 2011

Tornado Warning 36, NWS Newport/Morehead City, NC

April 28, 2011Dare County, North Carolina

NWS Newport/Morehead City, NC issued this tornado warning at Apr 28, 2011, 7:01 PM EDT for Dare County, North Carolina. It was in force for 29 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: Apr 28, 2011, 7:01 PM EDT (23:01 UTC)
Expired: Apr 28, 2011, 7:30 PM EDT
In force: 29 min
Issued by: NWS Newport/Morehead City, NC
Area: Storm-based polygon

County Dare County, NC

The radar

The Norfolk radar (KAKQ), 143 km from the middle of the area, began a volume at 23:02 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 28, 2:41 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 11.0 hours before the alert went out and 185 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: 1638 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 502 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 227 m²/s²
0-3 km storm-relative helicity: 220 m²/s²
Significant tornado parameter: 1.0
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

315 
WFUS52 KMHX 282301
TORMHX
NCC055-282330-
/O.NEW.KMHX.TO.W.0036.110428T2301Z-110428T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
701 PM EDT THU APR 28 2011

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* TORNADO WARNING FOR...
  EXTREME NORTH CENTRAL DARE COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 730 PM EDT

* AT 659 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 12 MILES WEST OF SOUTHERN SHORES...OR 11 MILES SOUTH OF
  GRANDY...MOVING NORTHEAST AT 60 MPH.

* LOCATIONS IMPACTED INCLUDE...
  SANDERLING...DUCK...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...VEHICLE OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER. IF NO SHELTER IS
AVAILABLE LIE DOWN IN A LOW LYING AREA. PROTECT YOURSELF FROM FLYING
DEBRIS.

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING...1...8 0 0...8 8 9...6 8 8 9 OR NOTIFY YOUR LOCAL LAW
ENFORCEMENT AGENCY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT THURSDAY EVENING
FOR EASTERN NORTH CAROLINA.

&&

LAT...LON 3623 7576 3613 7572 3610 7570 3608 7574
      3612 7576 3614 7575 3621 7578 3620 7579
      3622 7581 3623 7581 3623 7580
TIME...MOT...LOC 2301Z 226DEG 52KT 3611 7592

$$

29

1 follow-up statement

636 
WWUS52 KMHX 282329
SVSMHX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
729 PM EDT THU APR 28 2011

NCC055-282338-
/O.EXP.KMHX.TO.W.0036.000000T0000Z-110428T2330Z/
DARE NC-
729 PM EDT THU APR 28 2011

...THE TORNADO WARNING FOR EXTREME NORTH CENTRAL DARE COUNTY EXPIRES
AT 730 PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS MOVED OUT OF THE AREA AND 
THE WARNING WILL BE ALLOWED TO EXPIRE.

IF YOU OBSERVED SEVERE WEATHER INCLUDING DAMAGING WINDS OR LARGE 
HAIL...PLEASE CONTACT THE NATIONAL WEATHER SERVICE BY CALLING TOLL 
FREE 1...8 0 0...8 8 9...6 8 8 9...OR NOTIFY YOUR NEAREST LAW 
ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL 
WEATHER SERVICE FORECAST OFFICE IN NEWPORT.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM EDT THURSDAY EVENING
FOR EASTERN NORTH CAROLINA.

LAT...LON 3623 7576 3613 7572 3610 7570 3608 7574
      3612 7576 3614 7575 3621 7578 3620 7579
      3622 7581 3623 7581 3623 7580
TIME...MOT...LOC 2328Z 226DEG 52KT 3638 7557

$$

29

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 28, 10:07 AM EDT	Wind Advisory	MHX	Beaufort, Dare, Duplin, Greene, Hyde, Jones and 6 more	12 hr
Apr 28, 1:41 PM EDT	Tornado Warning	MHX	Duplin, Lenoir	49 min
Apr 28, 2:26 PM EDT	Tornado Warning	MHX	Duplin	49 min
Apr 28, 3:10 PM EDT	Tornado Warning	MHX	Duplin, Lenoir	50 min
Apr 28, 3:29 PM EDT	Tornado Warning	MHX	Beaufort, Greene, Martin, Pitt	46 min
Apr 28, 3:48 PM EDT	Tornado Warning	MHX	Craven, Duplin, Jones, Lenoir	42 min
Apr 28, 4:26 PM EDT	Tornado Warning	MHX	Beaufort, Craven, Pitt	49 min
Apr 28, 4:32 PM EDT	Tornado Warning	MHX	Duplin, Onslow	26 min
Apr 28, 4:44 PM EDT	Tornado Warning	MHX	Martin, Washington	31 min
Apr 28, 4:49 PM EDT	Tornado Warning	MHX	Beaufort, Craven, Pitt	22 min
Apr 28, 5:01 PM EDT	Tornado Warning	MHX	Beaufort, Hyde, Washington	44 min
Apr 28, 5:15 PM EDT	Tornado Warning	MHX	Tyrrell, Washington	19 min
Apr 28, 5:26 PM EDT	Special Marine Warning	MHX		49 min
Apr 28, 5:33 PM EDT	Tornado Warning	MHX	Hyde, Tyrrell, Washington	42 min
Apr 28, 5:42 PM EDT	Severe Thunderstorm Warning	MHX	Craven, Jones, Onslow	33 min
Apr 28, 5:46 PM EDT	Severe Thunderstorm Warning	MHX	Craven, Jones, Onslow	29 min
Apr 28, 5:55 PM EDT	Tornado Warning	MHX	Tyrrell, Washington	35 min
Apr 28, 6:23 PM EDT	Tornado Warning	MHX	Dare, Tyrrell, Washington	37 min
Apr 28, 6:38 PM EDT	Special Marine Warning	MHX		67 min

Nearby

Tornado Warnings in North Carolina, 2011 Every tornado warning in 2011 Tornadoes 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.