Alert archive / North Carolina / Tornado Warnings in 2014

Tornado Warning 18, NWS Raleigh, NC

April 29, 2014Johnston County, Sampson County, North Carolina

NWS Raleigh, NC issued this tornado warning at Apr 29, 2014, 4:30 PM EDT for Johnston County, Sampson County, North Carolina. It was in force for 45 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 29, 2014, 4:30 PM EDT (20:30 UTC)
Expired: Apr 29, 2014, 5:15 PM EDT
In force: 45 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

Counties Johnston County, NC, Sampson County, NC

The radar

The Raleigh/Durham radar (KRAX), 44 km from the middle of the area, began a volume at 20:34 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 29, 2:27 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 8.5 hours before the alert went out and 151 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: 1802 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 561 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

959 
WFUS52 KRAH 292030
TORRAH
NCC101-163-292115-
/O.NEW.KRAH.TO.W.0018.140429T2030Z-140429T2115Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
430 PM EDT TUE APR 29 2014

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTH CENTRAL JOHNSTON COUNTY IN CENTRAL NORTH CAROLINA...
  NORTHWESTERN SAMPSON COUNTY IN CENTRAL NORTH CAROLINA...

* UNTIL 515 PM EDT
    
* AT 429 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 8
  MILES SOUTHEAST OF DUNN...OR 18 MILES NORTHWEST OF CLINTON...AND
  MOVING NORTHEAST AT 25 MPH.

* LOCATIONS IMPACTED INCLUDE...
  FOUR OAKS...NEWTON GROVE AND SPIVEY'S CORNER. 

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 IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3515 7857 3525 7859 3527 7857 3529 7857
      3531 7854 3548 7845 3534 7822 3532 7824
      3533 7826 3531 7829 3528 7831 3524 7829
      3515 7850
TIME...MOT...LOC 2029Z 214DEG 22KT 3522 7851 
$$

VINCENT

2 follow-up statements

249 
WWUS52 KRAH 292051
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
451 PM EDT TUE APR 29 2014

NCC163-292059-
/O.CAN.KRAH.TO.W.0018.000000T0000Z-140429T2115Z/
SAMPSON NC-
451 PM EDT TUE APR 29 2014

...THE TORNADO WARNING FOR NORTHWESTERN SAMPSON COUNTY IS
CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED NORTH 
INTO JOHNSTON COUNTY. THEREFORE...THIS WARNING HAS BEEN CANCELLED.

HOWEVER...A SEPARATE TORNADO WARNING REMAINS IN EFFECT FOR NORTHWEST 
PORTIONS OF SAMPSON COUNTY UNTIL 515 PM EDT.

LAT...LON 3526 7849 3531 7854 3548 7845 3534 7822
      3532 7824 3533 7826 3531 7829 3528 7831
      3526 7840 3525 7841
TIME...MOT...LOC 2049Z 213DEG 20KT 3532 7842 

$$

NCC101-292115-
/O.CON.KRAH.TO.W.0018.000000T0000Z-140429T2115Z/
JOHNSTON NC-
451 PM EDT TUE APR 29 2014

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM EDT FOR SOUTH
CENTRAL JOHNSTON COUNTY...
     
AT 449 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE
OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED 8 MILES
SOUTHEAST OF BENSON...OR 13 MILES SOUTH OF SMITHFIELD...MOVING
NORTHEAST AT 25 MPH.

LOCATIONS IMPACTED INCLUDE...
FOUR OAKS.

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 IN A MOBILE HOME OR
OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT
YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 3526 7849 3531 7854 3548 7845 3534 7822
      3532 7824 3533 7826 3531 7829 3528 7831
      3526 7840 3525 7841
TIME...MOT...LOC 2049Z 213DEG 20KT 3532 7842 

$$

VINCENT

300 
WWUS52 KRAH 292107
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
507 PM EDT TUE APR 29 2014

NCC101-292116-
/O.EXP.KRAH.TO.W.0018.000000T0000Z-140429T2115Z/
JOHNSTON NC-
507 PM EDT TUE APR 29 2014

...THE TORNADO WARNING FOR SOUTH CENTRAL JOHNSTON COUNTY WILL EXPIRE
AT 515 PM EDT...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS WEAKENED 
AND THE WARNING WILL BE ALLOWED TO EXPIRE AT 515 PM EDT.

IF THIS STORM STRENGTHENS AGAIN...ANOTHER WARNING MAY BE NEEDED.

LAT...LON 3526 7849 3531 7854 3548 7845 3534 7822
      3532 7824 3533 7826 3531 7829 3528 7831
      3526 7840 3525 7841
TIME...MOT...LOC 2102Z 214DEG 22KT 3532 7842 

$$

VINCENT

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 29, 12:39 PM EDT	Special Weather Statement	RAH	Alamance, Orange	51 min
Apr 29, 2:35 PM EDT	Special Weather Statement	RAH	Harnett	25 min
Apr 29, 2:43 PM EDT	Special Weather Statement	RAH	Cumberland	32 min
Apr 29, 2:56 PM EDT	Special Weather Statement	RAH	Cumberland	34 min
Apr 29, 3:00 PM EDT	Special Weather Statement	RAH	Johnston	45 min
Apr 29, 3:12 PM EDT	Special Weather Statement	RAH	Johnston	33 min
Apr 29, 3:17 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston	43 min
Apr 29, 3:24 PM EDT	Special Weather Statement	RAH	Cumberland	36 min
Apr 29, 3:35 PM EDT	Special Weather Statement	RAH	Harnett	25 min
Apr 29, 3:39 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Johnston, Sampson	51 min
Apr 29, 3:46 PM EDT	Severe Thunderstorm Warning	RAH	Wilson	44 min
Apr 29, 3:46 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	44 min
Apr 29, 3:55 PM EDT	Tornado Warning	RAH	Cumberland, Sampson	50 min
Apr 29, 4:00 PM EDT	Tornado Warning	RAH	Wilson	30 min
Apr 29, 4:13 PM EDT	Special Weather Statement	RAH	Cumberland, Hoke	47 min
Apr 29, 4:23 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Hoke	52 min
Apr 29, 4:24 PM EDT	Tornado Warning	RAH	Cumberland, Harnett, Johnston, Sampson	51 min
Apr 29, 4:31 PM EDT	Tornado Warning	RAH	Wilson	29 min
Apr 29, 4:32 PM EDT	Special Weather Statement	RAH	Johnston	43 min
Apr 29, 4:34 PM EDT	Tornado Warning	RAH	Edgecombe, Wilson	26 min
Apr 29, 4:35 PM EDT	Tornado Warning	RAH	Johnston, Wayne, Wilson	40 min
Apr 29, 4:57 PM EDT	Areal Flood Advisory	RAH	Cumberland, Harnett, Johnston, Sampson, Wilson	3 hr
Apr 29, 5:00 PM EDT	Tornado Warning	RAH	Edgecombe, Wilson	45 min
Apr 29, 5:08 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Johnston, Sampson, Wayne	37 min
Apr 29, 5:14 PM EDT	Severe Thunderstorm Warning	RAH	Wayne, Wilson	46 min
Apr 29, 5:32 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Sampson	43 min
Apr 29, 5:40 PM EDT	Flash Flood Warning	RAH	Cumberland	3 hr
Apr 29, 5:43 PM EDT	Flash Flood Warning	RAH	Wilson	3 hr
Apr 29, 5:45 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe	60 min
Apr 29, 5:49 PM EDT	Tornado Warning	RAH	Edgecombe	56 min
Apr 29, 6:08 PM EDT	Severe Thunderstorm Warning	RAH	Wayne	52 min
Apr 29, 6:09 PM EDT	Flash Flood Warning	RAH	Edgecombe	3 hr
Apr 29, 6:21 PM EDT	Special Weather Statement	RAH	Wilson	24 min
Apr 29, 6:25 PM EDT	Special Weather Statement	RAH	Johnston	35 min
Apr 29, 6:29 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	46 min
Apr 29, 6:42 PM EDT	Special Weather Statement	RAH	Cumberland	33 min
Apr 29, 7:10 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	50 min
Apr 29, 7:30 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	60 min
Apr 29, 7:33 PM EDT	Tornado Warning	RAH	Sampson	42 min
Apr 29, 7:52 PM EDT	Tornado Warning	RAH	Sampson	38 min

Nearby

Tornado Warnings in North Carolina, 2014 Every tornado warning in 2014 Tornadoes in 2014

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.