Alert archive / North Carolina / Tornado Warnings in 2012

Tornado Warning 14, NWS Raleigh, NC

September 18, 2012Franklin County, Nash County, Wake County, North Carolina

NWS Raleigh, NC issued this tornado warning at Sep 18, 2012, 3:38 PM EDT for Franklin County, Nash County, Wake County, North Carolina. It was in force for 14 min. 2 reports 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
Sep 18, 2012, 3:38 PM EDT (19:38 UTC)
Expired
Sep 18, 2012, 3:52 PM EDT
In force
14 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon

Counties Franklin County, NC, Nash County, NC, Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 33 km from the middle of the area, began a volume at 19:41 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

TimeReportWhereRemark
Sep 18, 3:38 PM EDTTORNADO3 Nne Wendell, NCAN NWS DAMAGE SURVEY THIS MORNING HAS CONCLUDED THAT A WEAK EF-0 TORNADO BRIEFLY TOUCHED DOWN TUESDAY AFTERNOON JUST WEST OF THE TOWN OF ZEBULON... NC. THE TORNADO DAMAGE WAS FOUND IN A STAND OF TREES AS A WELL-DEFINED DAMAGE PATH OF ABOUT ONE-HALF MILE LONG A
Sep 18, 3:42 PM EDTTSTM WND DMG4 Sw Pilot, NCRESIDENT ON KARIAL COURT HEARD TORNADO WARNING AND SOUGHT SHELTER. UPON LEAVING SHELTER... 60-FOOT TREE ACROSS STREET WAS TOPPED AT ABOUT 30-FOOT LEVEL WITH BRANCHES BLOWN DOWN. TIME ESTIMATED.

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.

IssuedProductOfficeLasted
Sep 18, 9:45 AM EDTTornado WatchSPC8 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.6 hours before the alert went out and 156 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2012-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 533 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2012-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 221 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
533 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
545 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
221 m²/s²
0-3 km storm-relative helicity
313 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.1

Open this sounding in Storm Lab

The text

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

408 
WFUS52 KRAH 181938
TORRAH
NCC069-127-183-182015-
/O.NEW.KRAH.TO.W.0014.120918T1938Z-120918T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
338 PM EDT TUE SEP 18 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHEASTERN FRANKLIN COUNTY IN CENTRAL NORTH CAROLINA
  EAST CENTRAL WAKE COUNTY IN CENTRAL NORTH CAROLINA
  NASH COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 415 PM EDT

* AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER WENDELL...OR 17 MILES EAST OF RALEIGH...MOVING
  NORTHEAST AT 35 MPH. DAMAGING STRAIGHT LINE WINDS IN EXCESS OF 58
  MPH ARE ALSO LIKELY WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  PILOT...
  BUNN...
  SPRING HOPE...
  CASTALIA...

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.

IF CAUGHT IN A VEHICLE...AS A LAST RESORT...EITHER PARK YOUR VEHICLE
AND STAY PUT LEAVING YOUR SEAT BELT ON...OR ABANDON YOUR VEHICLE AND
LIE DOWN IN A LOW LYING AREA. PROTECT YOURSELF FROM FLYING DEBRIS.
MOTORISTS SHOULD NOT TAKE SHELTER UNDER HIGHWAY OVERPASSES.

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 TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EDT TUESDAY AFTERNOON
FOR CENTRAL NORTH CAROLINA.

&&

LAT...LON 3590 7783 3575 7823 3577 7825 3580 7825
      3581 7827 3576 7836 3575 7838 3585 7848
      3617 7805
TIME...MOT...LOC 1938Z 230DEG 32KT 3584 7832

$$

ELLIS
2 follow-up statements
854 
WWUS52 KRAH 181947
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
347 PM EDT TUE SEP 18 2012

NCC183-181956-
/O.CAN.KRAH.TO.W.0014.000000T0000Z-120918T2015Z/
WAKE NC-
347 PM EDT TUE SEP 18 2012

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

THE STORM 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 TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EDT TUESDAY AFTERNOON
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3590 7783 3575 7823 3577 7825 3584 7826
      3587 7828 3590 7831 3589 7832 3591 7835
      3593 7835 3593 7837 3617 7805
TIME...MOT...LOC 1946Z 230DEG 32KT 3589 7825

$$

NCC069-127-182015-
/O.CON.KRAH.TO.W.0014.000000T0000Z-120918T2015Z/
FRANKLIN NC-NASH NC-
347 PM EDT TUE SEP 18 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EDT FOR NASH AND
SOUTHEASTERN FRANKLIN COUNTIES...

AT 345 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO.  THIS TORNADO WAS LOCATED NEAR PILOT...OR 15 
MILES SOUTH OF LOUISBURG...MOVING NORTHEAST AT 35 MPH. RADAR TRENDS 
ARE WEAKENING AND WARNING COULD BE CANCELLED WITHIN A FEW MINUTES IF 
CURRENT TRENDS CONTINUE.

HAZARDS IN THE WARNING INCLUDE...
A TORNADO.
OTHER DAMAGING WINDS IN EXCESS OF 58 MPH.

LOCATIONS IN THE PATH OF THE STORM INCLUDE... BUNN...SPRING HOPE...
NASHVILLE AND CASTALIA.

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.

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT. COVER YOUR HEAD WITH YOUR HANDS TO PROTECT YOURSELF FROM FLYING
DEBRIS.

WHEN IT IS SAFE TO DO SO...PLEASE CALL IN YOUR REPORTS OF PENNY OR
LARGER SIZED HAIL...AS WELL AS WIND DAMAGE...INCLUDING TREES OR LARGE
LIMBS DOWNED BY CALLING THE NATIONAL WEATHER SERVICE TOLL FREE AT...
1...8 7 7...6 3 3...6 7 7 2.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EDT TUESDAY AFTERNOON
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3590 7783 3575 7823 3577 7825 3584 7826
      3587 7828 3590 7831 3589 7832 3591 7835
      3593 7835 3593 7837 3617 7805
TIME...MOT...LOC 1946Z 230DEG 32KT 3589 7825

$$

ELLIS
125 
WWUS52 KRAH 181952
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
352 PM EDT TUE SEP 18 2012

NCC069-127-182002-
/O.CAN.KRAH.TO.W.0014.000000T0000Z-120918T2015Z/
FRANKLIN NC-NASH NC-
352 PM EDT TUE SEP 18 2012

...THE TORNADO WARNING FOR NASH AND SOUTHEASTERN FRANKLIN COUNTIES IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED 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 TORNADO WATCH REMAINS IN EFFECT UNTIL 500 PM EDT TUESDAY AFTERNOON
FOR CENTRAL NORTH CAROLINA.

LAT...LON 3590 7783 3575 7823 3577 7825 3584 7826
      3587 7828 3590 7831 3589 7832 3591 7835
      3593 7835 3593 7837 3617 7805
TIME...MOT...LOC 1952Z 230DEG 32KT 3592 7820

$$

ELLIS

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 17, 8:32 PM EDTSpecial Weather StatementRAHDavie58 min
Sep 17, 10:33 PM EDTSpecial Weather StatementRAHForsyth27 min
Sep 18, 6:52 AM EDTSpecial Weather StatementRAHAnson, Stanly38 min
Sep 18, 7:46 AM EDTSpecial Weather StatementRAHAnson, Montgomery, Richmond, Stanly89 min
Sep 18, 8:04 AM EDTSpecial Weather StatementRAHDavidson, Guilford, Randolph86 min
Sep 18, 8:34 AM EDTSpecial Weather StatementRAHMontgomery56 min
Sep 18, 8:56 AM EDTSpecial Weather StatementRAHAlamance, Chatham, Guilford, Randolph94 min
Sep 18, 9:34 AM EDTSevere Thunderstorm WarningRAHAlamance, Chatham, Orange56 min
Sep 18, 10:45 AM EDTSevere Thunderstorm WarningRAHDurham, Granville, Person, Vance45 min
Sep 18, 11:35 AM EDTSpecial Weather StatementRAHOrange40 min
Sep 18, 11:52 AM EDTAreal Flood AdvisoryRAHAlamance, Chatham, Randolph2 hr
Sep 18, 12:03 PM EDTSpecial Weather StatementRAHGranville, Orange57 min
Sep 18, 12:14 PM EDTSpecial Weather StatementRAHChatham31 min
Sep 18, 12:50 PM EDTSpecial Weather StatementRAHPerson25 min
Sep 18, 12:55 PM EDTSpecial Weather StatementRAHAnson, Montgomery, Moore, Richmond, Scotland65 min
Sep 18, 1:29 PM EDTSpecial Weather StatementRAHGranville46 min
Sep 18, 1:37 PM EDTSevere Thunderstorm WarningRAHGranville, Vance53 min
Sep 18, 1:40 PM EDTSevere Thunderstorm WarningRAHFranklin, Halifax, Warren35 min
Sep 18, 1:47 PM EDTSpecial Weather StatementRAHChatham, Harnett, Hoke, Lee58 min
Sep 18, 2:27 PM EDTSpecial Weather StatementRAHAlamance, Chatham, Orange, Randolph63 min
Sep 18, 2:37 PM EDTTornado WarningRAHGranville21 min
Sep 18, 2:40 PM EDTSpecial Weather StatementRAHCumberland, Harnett, Johnston65 min
Sep 18, 2:43 PM EDTSpecial Weather StatementRAHFranklin, Wake62 min
Sep 18, 2:51 PM EDTSevere Thunderstorm WarningRAHHarnett, Johnston, Wake54 min
Sep 18, 3:04 PM EDTAreal Flood AdvisoryRAHWake2 hr
Sep 18, 3:13 PM EDTSpecial Weather StatementRAHChatham, Durham, Granville, Vance32 min
Sep 18, 3:19 PM EDTSevere Thunderstorm WarningRAHCumberland, Harnett, Johnston, Sampson41 min
Sep 18, 3:24 PM EDTTornado WarningRAHCumberland, Johnston, Sampson23 min
Sep 18, 3:27 PM EDTSpecial Weather StatementRAHWarren33 min
Sep 18, 3:37 PM EDTFlash Flood WarningRAHWake93 min
Sep 18, 3:52 PM EDTSpecial Weather StatementRAHJohnston, Wilson53 min
Sep 18, 3:56 PM EDTSpecial Weather StatementRAHHalifax, Nash64 min
Sep 18, 5:01 PM EDTSpecial Weather StatementRAHHalifax44 min
Sep 18, 5:09 PM EDTAreal Flood AdvisoryRAHHalifax85 min

Nearby

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