Alert archive / North Carolina / Tornado Warnings in 2012

Tornado Warning 4, NWS Raleigh, NC

July 1, 2012Sampson County, North Carolina

NWS Raleigh, NC issued this tornado warning at Jul 1, 2012, 4:24 PM EDT for Sampson County, North Carolina. It was in force for 12 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 1, 2012, 4:24 PM EDT (20:24 UTC)
Expired: Jul 1, 2012, 4:36 PM EDT
In force: 12 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

County Sampson County, NC

The radar

The Raleigh/Durham radar (KRAX), 72 km from the middle of the area, began a volume at 20:27 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.

What was reported inside it

Time	Report	Where	Remark
Jul 1, 4:32 PM EDT	TSTM WND DMG	5 Nnw Turkey, NC	NUMEROUS TREES DOWN BETWEEN HOBBTON AND TURKEY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

Issued	Product	Office	Lasted
Jul 1, 12:56 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 8.4 hours before the alert went out and 126 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: 2962 J/kg
Mixed-layer CIN: -200 J/kg
Mixed-layer LCL: 1419 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 66 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

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

270 
WFUS52 KRAH 012024
TORRAH
NCC163-012100-
/O.NEW.KRAH.TO.W.0004.120701T2024Z-120701T2100Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
424 PM EDT SUN JUL 1 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL SAMPSON COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 500 PM EDT

* AT 418 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 7 MILES NORTH OF TURKEY...OR 8 MILES NORTHEAST OF
  CLINTON...MOVING EAST AT 20 MPH. GOLF BALL SIZED HAIL AND
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH ARE ALSO LIKELY WITH THIS
  STORM.

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 7 7...6 3 3...6 7 7 2 OR NOTIFY YOUR LOCAL LAW
ENFORCEMENT AGENCY.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR CENTRAL NORTH CAROLINA.

&&

LAT...LON 3499 7822 3500 7832 3518 7831 3518 7830
      3519 7816 3509 7817 3505 7815 3500 7815
      3499 7816 3499 7821
TIME...MOT...LOC 2024Z 272DEG 19KT 3509 7819

$$

77

1 follow-up statement

015 
WWUS52 KRAH 012036
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
436 PM EDT SUN JUL 1 2012

NCC163-012045-
/O.CAN.KRAH.TO.W.0004.000000T0000Z-120701T2100Z/
SAMPSON NC-
436 PM EDT SUN JUL 1 2012

...THE TORNADO WARNING FOR EAST CENTRAL SAMPSON COUNTY IS 
CANCELLED...

THE TORNADIC RADAR SIGNATURE WHICH PROMPTED THE WARNING HAS MOVED 
OUT OF THE AREA AND THE WARNING IS NO LONGER IN EFFECT.

IF YOU OBSERVED SEVERE WEATHER INCLUDING DAMAGING WINDS OR LARGE
HAIL...PLEASE CONTACT THE NATIONAL WEATHER SERVICE BY CALLING TOLL
FREE 1...8 7 7...6 3 3...6 7 7 2...OR NOTIFY YOUR NEAREST LAW
ENFORCEMENT AGENCY AND ASK THEM TO RELAY YOUR REPORT TO THE NATIONAL
WEATHER SERVICE FORECAST OFFICE IN RALEIGH.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM EDT SUNDAY
EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3499 7822 3500 7832 3518 7831 3518 7830
      3519 7816 3509 7817 3505 7815 3500 7815
      3499 7816 3499 7821
TIME...MOT...LOC 2035Z 272DEG 19KT 3509 7812

$$

77

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 30, 9:31 PM EDT	Special Weather Statement	RAH	Guilford	59 min
Jun 30, 10:29 PM EDT	Special Weather Statement	RAH	Alamance	46 min
Jun 30, 10:41 PM EDT	Special Weather Statement	RAH	Granville, Person	64 min
Jun 30, 10:58 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Guilford, Orange	62 min
Jun 30, 11:40 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Durham, Orange	32 min
Jul 1, 1:10 AM EDT	Special Weather Statement	RAH	Franklin, Nash, Vance, Warren	65 min
Jul 1, 1:30 AM EDT	Special Weather Statement	RAH	Stanly	60 min
Jul 1, 2:55 AM EDT	Special Weather Statement	RAH	Warren	50 min
Jul 1, 4:00 AM EDT	Special Weather Statement	RAH	Granville, Person	60 min
Jul 1, 4:06 AM EDT	Special Weather Statement	RAH	Halifax	54 min
Jul 1, 4:30 AM EDT	Special Weather Statement	RAH	Vance	45 min
Jul 1, 5:07 AM EDT	Special Weather Statement	RAH	Nash	53 min
Jul 1, 7:16 AM EDT	Special Weather Statement	RAH	Warren	74 min
Jul 1, 11:03 AM EDT	Special Weather Statement	RAH	Forsyth	3 hr
Jul 1, 12:30 PM EDT	Special Weather Statement	RAH	Forsyth, Guilford	60 min
Jul 1, 12:52 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford	38 min
Jul 1, 1:41 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Durham, Granville, Guilford, Orange, Person and 1 more	64 min
Jul 1, 2:12 PM EDT	Special Weather Statement	RAH	Richmond	48 min
Jul 1, 2:15 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Richmond	45 min
Jul 1, 2:20 PM EDT	Special Weather Statement	RAH	Chatham, Lee, Orange, Wake	55 min
Jul 1, 2:31 PM EDT	Special Weather Statement	RAH	Harnett	44 min
Jul 1, 2:33 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Franklin, Granville, Vance, Wake, Warren	72 min
Jul 1, 2:37 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Wake	21 min
Jul 1, 2:47 PM EDT	Special Weather Statement	RAH	Cumberland, Sampson	58 min
Jul 1, 2:54 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Hoke	66 min
Jul 1, 2:59 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Richmond, Scotland	61 min
Jul 1, 3:03 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Johnston, Nash, Wake, Wilson	57 min
Jul 1, 3:16 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Franklin, Halifax, Nash, Wilson	74 min
Jul 1, 3:27 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	78 min
Jul 1, 3:44 PM EDT	Flash Flood Warning	RAH	Cumberland, Hoke, Sampson	2 hr
Jul 1, 3:48 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wayne, Wilson	57 min
Jul 1, 3:55 PM EDT	Severe Thunderstorm Warning	RAH	Hoke	35 min
Jul 1, 4:10 PM EDT	Areal Flood Advisory	RAH	Edgecombe	66 min
Jul 1, 4:42 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Hoke, Sampson	66 min
Jul 1, 4:59 PM EDT	Heat Advisory	RAH	Anson, Chatham, Cumberland, Durham, Edgecombe, Franklin and 18 more	22 hr
Jul 1, 6:37 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Stanly	68 min
Jul 1, 7:48 PM EDT	Special Weather Statement	RAH	Anson, Richmond, Scotland	87 min
Jul 1, 7:52 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Richmond	38 min

Nearby

Tornado Warnings in North Carolina, 2012 Every tornado warning in 2012 Tornadoes in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.