Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 293, NWS Raleigh, NC

July 30, 2012Wilson County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 30, 2012, 2:52 PM EDT for Wilson County, North Carolina. It was in force for 38 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: Jul 30, 2012, 2:52 PM EDT (18:52 UTC)
Expired: Jul 30, 2012, 3:30 PM EDT
In force: 38 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

County Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 50 km from the middle of the area, began a volume at 18:54 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, 6.9 hours before the alert went out and 137 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: 1740 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 620 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: -12 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.

483 
WUUS52 KRAH 301852
SVRRAH
NCC195-301930-
/O.NEW.KRAH.SV.W.0293.120730T1852Z-120730T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
252 PM EDT MON JUL 30 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WILSON COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 330 PM EDT

* AT 249 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER SARATOGA...OR 15 MILES NORTHWEST OF
  FARMVILLE...MOVING WEST AT 15 MPH. QUARTER SIZED HAIL AND WINDS IN
  EXCESS OF 58 MPH ARE LIKELY WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...SARATOGA... WILSON...BLACK CREEK...
  LUCAMA...AND SIMS.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 116 AND 121.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

LARGE HAIL WILL DAMAGE VEHICLES...WINDOWS AND SOME ROOFS. SEVERE
WINDS WILL BLOW DOWN TREES...POWER LINES...AND CAN DAMAGE MOBILE
HOMES AND OTHER BUILDINGS. SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THE STORM HAS PASSED. STAY AWAY FROM WINDOWS.

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.

&&

LAT...LON 3557 7781 3559 7783 3558 7799 3560 7805
      3558 7806 3561 7813 3570 7816 3573 7819
      3583 7795 3581 7775 3573 7772 3567 7766
TIME...MOT...LOC 1852Z 094DEG 13KT 3570 7785

$$

10

3 follow-up statements

717 
WWUS52 KRAH 301906
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
306 PM EDT MON JUL 30 2012

NCC195-301930-
/O.CON.KRAH.SV.W.0293.000000T0000Z-120730T1930Z/
WILSON NC-
306 PM EDT MON JUL 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR WILSON COUNTY...

AT 303 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR
WILSON...OR 18 MILES SOUTH OF ROCKY MOUNT...MOVING WEST AT 15 MPH.

HAZARDS IN THE WARNING INCLUDE...
QUARTER SIZED HAIL.
DAMAGING WINDS IN EXCESS OF 58 MPH.

LOCATIONS IN THE PATH OF THE STORM INCLUDE... BLACK CREEK...NEW
HOPE...LUCAMA AND SIMS.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 116 AND 121.

LARGE HAIL WILL DAMAGE VEHICLES...WINDOWS AND SOME ROOFS. SEVERE
WINDS WILL BLOW DOWN TREES...POWER LINES...AND CAN DAMAGE MOBILE
HOMES AND OTHER BUILDINGS. SEEK SHELTER IN A STURDY STRUCTURE UNTIL
THE STORM HAS PASSED. STAY AWAY FROM WINDOWS.

STRAIGHT LINE WINDS CAN BLOW DOWN TREES...POWER LINES...AND DAMAGE
MOBILE HOMES AND OTHER BUILDINGS. SEEK SHELTER IN A STURDY STRUCTURE
UNTIL THE STORM HAS PASSED. STAY AWAY FROM WINDOWS AS FLYING DEBRIS
GENERATED BY DAMAGING WINDS CAN BE DEADLY.

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.

LAT...LON 3558 7780 3558 7781 3559 7783 3558 7800
      3560 7805 3558 7806 3561 7813 3570 7816
      3573 7819 3583 7793 3579 7778 3567 7770
TIME...MOT...LOC 1907Z 094DEG 13KT 3570 7792

$$

ELLIS

648 
WWUS52 KRAH 301916
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
316 PM EDT MON JUL 30 2012

NCC195-301930-
/O.CON.KRAH.SV.W.0293.000000T0000Z-120730T1930Z/
WILSON NC-
316 PM EDT MON JUL 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR WILSON COUNTY...

AT 312 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR
WILSON...OR 18 MILES SOUTH OF NASHVILLE...MOVING WEST AT 15 MPH.

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

LOCATIONS IN THE PATH OF THE STORM INCLUDE... LUCAMA AND SIMS.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 116 AND 121.

STRAIGHT LINE WINDS CAN BLOW DOWN TREES...POWER LINES...AND DAMAGE
MOBILE HOMES AND OTHER BUILDINGS. SEEK SHELTER IN A STURDY STRUCTURE
UNTIL THE STORM HAS PASSED. STAY AWAY FROM WINDOWS AS FLYING DEBRIS
GENERATED BY DAMAGING WINDS CAN BE DEADLY.

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.

LAT...LON 3558 7780 3559 7783 3558 7797 3560 7805
      3558 7806 3561 7813 3570 7816 3573 7819
      3583 7793 3577 7784 3567 7778
TIME...MOT...LOC 1916Z 094DEG 13KT 3570 7796

$$

ELLIS

782 
WWUS52 KRAH 301926
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
326 PM EDT MON JUL 30 2012

NCC195-301936-
/O.EXP.KRAH.SV.W.0293.000000T0000Z-120730T1930Z/
WILSON NC-
326 PM EDT MON JUL 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR WILSON COUNTY EXPIRES AT 330
PM EDT...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED 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 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.

WHILE THE IMMEDIATE SEVERE WEATHER THREAT HAS DISSIPATED...ADDITIONAL
SEVERE WEATHER IS POSSIBLE DURING THE NEXT FEW HOURS. BE PREPARED TO
MOVE QUICKLY TO AN INTERIOR ROOM OF A SAFE SHELTER IF A WARNING IS
ISSUED.

LAT...LON 3558 7780 3559 7783 3558 7797 3560 7805
      3558 7806 3561 7813 3570 7816 3573 7819
      3583 7793 3577 7784 3567 7778
TIME...MOT...LOC 1926Z 094DEG 13KT 3570 7801

$$

ELLIS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 29, 9:41 PM EDT	Special Weather Statement	RAH	Person	94 min
Jul 30, 1:30 PM EDT	Special Weather Statement	RAH	Moore	60 min
Jul 30, 1:48 PM EDT	Special Weather Statement	RAH	Harnett, Johnston	57 min
Jul 30, 2:27 PM EDT	Special Weather Statement	RAH	Wilson	48 min
Jul 30, 2:32 PM EDT	Special Weather Statement	RAH	Anson, Moore, Richmond	58 min
Jul 30, 2:50 PM EDT	Special Weather Statement	RAH	Harnett, Johnston, Lee	55 min
Jul 30, 3:30 PM EDT	Special Weather Statement	RAH	Nash, Wilson	60 min
Jul 30, 3:35 PM EDT	Special Weather Statement	RAH	Anson, Richmond	55 min
Jul 30, 3:47 PM EDT	Areal Flood Advisory	RAH	Harnett, Hoke, Moore	110 min
Jul 30, 4:13 PM EDT	Areal Flood Advisory	RAH	Franklin, Johnston, Nash, Wake	107 min
Jul 30, 4:27 PM EDT	Special Weather Statement	RAH	Wake	48 min
Jul 30, 4:38 PM EDT	Flash Flood Warning	RAH	Wake	52 min
Jul 30, 5:12 PM EDT	Special Weather Statement	RAH	Orange	63 min
Jul 30, 5:14 PM EDT	Areal Flood Advisory	RAH	Chatham, Durham, Orange	76 min
Jul 30, 5:17 PM EDT	Special Weather Statement	RAH	Harnett	58 min
Jul 30, 5:48 PM EDT	Special Weather Statement	RAH	Alamance, Orange	57 min
Jul 30, 6:56 PM EDT	Special Weather Statement	RAH	Guilford	64 min
Jul 30, 7:31 PM EDT	Special Weather Statement	RAH	Forsyth	44 min
Jul 30, 7:58 PM EDT	Special Weather Statement	RAH	Forsyth	62 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2012 Every severe thunderstorm warning 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.