Alert archive / North Carolina / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 96, NWS Raleigh, NC

May 23, 2012Johnston County, Sampson County, Wayne County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at May 23, 2012, 2:44 PM EDT for Johnston County, Sampson County, Wayne County, North Carolina. It was in force for 46 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: May 23, 2012, 2:44 PM EDT (18:44 UTC)
Expired: May 23, 2012, 3:30 PM EDT
In force: 46 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon

Counties Johnston County, NC, Sampson County, NC, Wayne County, NC

The radar

The Raleigh/Durham radar (KRAX), 43 km from the middle of the area, began a volume at 18:44 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
May 23, 2:45 PM EDT	HAIL 1	6 Sw Newton Grove, NC	QUARTER SIZE HAIL AT TDM FARM
May 23, 2:58 PM EDT	HAIL 1	Four Oaks, NC	1 INCH HAIL

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
May 23, 1:44 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 6.7 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: 1227 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 677 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 54 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

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

203 
WUUS52 KRAH 231844
SVRRAH
NCC101-163-191-231930-
/O.NEW.KRAH.SV.W.0096.120523T1844Z-120523T1930Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
244 PM EDT WED MAY 23 2012

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN JOHNSTON COUNTY IN CENTRAL NORTH CAROLINA
  WESTERN WAYNE COUNTY IN CENTRAL NORTH CAROLINA
  NORTHERN SAMPSON COUNTY IN CENTRAL NORTH CAROLINA

* UNTIL 330 PM EDT

* AT 244 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 7 MILES NORTH OF NEWTON GROVE...OR 12 MILES
  SOUTH OF SMITHFIELD...MOVING NORTH AT 15 MPH. QUARTER SIZED HAIL
  AND WINDS IN EXCESS OF 58 MPH ARE LIKELY WITH THIS STORM.

* LOCATIONS IMPACTED INCLUDE...
  FOUR OAKS...
  SMITHFIELD...

THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 325 AND 348.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 79 AND 106.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS STORM IS PRODUCING LARGE HAIL CAPABLE OF BREAKING WINDOWS...
DAMAGING ROOFS AND DENTING VEHICLES. STAY INSIDE AWAY FROM WINDOWS
UNTIL THE STORM HAS PASSED.

THIS STORM WILL PRODUCE HEAVY RAINFALL...WHICH WILL FLOOD LOW LYING
AREAS SUCH AS DITCHES...UNDERPASSES AND OTHER AREAS OF POOR DRAINAGE.
AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. MOTORISTS SHOULD
ALSO REDUCE DRIVING SPEEDS TO AVOID HYDROPLANING.

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 900 PM EDT
WEDNESDAY EVENING FOR CENTRAL NORTH CAROLINA.

&&

LAT...LON 3506 7866 3509 7867 3512 7864 3512 7865
      3517 7863 3520 7865 3520 7863 3530 7858
      3534 7853 3549 7866 3560 7809 3558 7806
      3560 7805 3559 7802 3518 7814 3518 7816
      3516 7816
TIME...MOT...LOC 1845Z 186DEG 14KT 3535 7840

$$

ELLIS

3 follow-up statements

093 
WWUS52 KRAH 231859
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
259 PM EDT WED MAY 23 2012

NCC101-163-191-231930-
/O.CON.KRAH.SV.W.0096.000000T0000Z-120523T1930Z/
JOHNSTON NC-WAYNE NC-SAMPSON NC-
259 PM EDT WED MAY 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHERN SAMPSON...WESTERN WAYNE AND SOUTHERN JOHNSTON
COUNTIES...

AT 257 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR FOUR
OAKS...OR 8 MILES SOUTH OF SMITHFIELD...MOVING NORTH 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... PRINCETON...PINE
LEVEL...SELMA...MICRO...KENLY AND NAHUNTA.

THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 325 AND 348.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 79 AND 106.

THIS STORM IS PRODUCING LARGE HAIL CAPABLE OF BREAKING WINDOWS...
DAMAGING ROOFS AND DENTING VEHICLES. STAY INSIDE AWAY FROM WINDOWS
UNTIL THE STORM HAS PASSED.

THIS STORM WILL PRODUCE HEAVY RAINFALL...WHICH WILL FLOOD LOW LYING
AREAS SUCH AS DITCHES...UNDERPASSES AND OTHER AREAS OF POOR DRAINAGE.
AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. MOTORISTS SHOULD
ALSO REDUCE DRIVING SPEEDS TO AVOID HYDROPLANING.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3514 7857 3530 7858 3532 7853 3534 7853
      3549 7866 3560 7810 3558 7806 3560 7805
      3559 7802 3518 7814 3512 7853
TIME...MOT...LOC 1900Z 186DEG 14KT 3541 7839

$$

ELLIS

631 
WWUS52 KRAH 231911
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
311 PM EDT WED MAY 23 2012

NCC101-163-191-231930-
/O.CON.KRAH.SV.W.0096.000000T0000Z-120523T1930Z/
JOHNSTON NC-WAYNE NC-SAMPSON NC-
311 PM EDT WED MAY 23 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM EDT
FOR NORTHERN SAMPSON...WESTERN WAYNE AND SOUTHERN JOHNSTON
COUNTIES...

AT 307 PM EDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM.  THIS
STORM WAS LOCATED 6 MILES SOUTHWEST OF NEWTON GROVE...OR 15 MILES
NORTH OF CLINTON...MOVING NORTH AT 5 MPH.

HAZARDS IN THE WARNING INCLUDE...
QUARTER SIZED HAIL.

LOCATIONS IN THE PATH OF THE STORM INCLUDE... SMITHFIELD...SELMA...
PRINCETON...PINE LEVEL...MICRO...KENLY...FOUR OAKS...BENSON...
NAHUNTA...GRANTHAM AND SPIVEY'S CORNER.

THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 325 AND 348.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 79 AND 106.

THIS STORM IS PRODUCING LARGE HAIL CAPABLE OF BREAKING WINDOWS...
DAMAGING ROOFS AND DENTING VEHICLES. STAY INSIDE AWAY FROM WINDOWS
UNTIL THE STORM HAS PASSED.

THIS STORM WILL PRODUCE HEAVY RAINFALL...WHICH WILL FLOOD LOW LYING
AREAS SUCH AS DITCHES...UNDERPASSES AND OTHER AREAS OF POOR DRAINAGE.
AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. MOTORISTS SHOULD
ALSO REDUCE DRIVING SPEEDS TO AVOID HYDROPLANING.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3514 7857 3530 7858 3532 7853 3534 7853
      3549 7866 3560 7810 3558 7806 3560 7805
      3559 7802 3518 7814 3512 7853
TIME...MOT...LOC 1912Z 182DEG 6KT 3521 7843

$$

ELLIS

446 
WWUS52 KRAH 231923
SVSRAH

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE RALEIGH NC
323 PM EDT WED MAY 23 2012

NCC163-191-231934-
/O.CAN.KRAH.SV.W.0096.000000T0000Z-120523T1930Z/
WAYNE NC-SAMPSON NC-
323 PM EDT WED MAY 23 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN SAMPSON AND WESTERN
WAYNE 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.

THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 341 AND 348.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3535 7854 3549 7866 3549 7865 3560 7810
      3558 7807
TIME...MOT...LOC 1924Z 187DEG 7KT 3548 7858

$$

NCC101-231930-
/O.CON.KRAH.SV.W.0096.000000T0000Z-120523T1930Z/
JOHNSTON NC-
323 PM EDT WED MAY 23 2012

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

AT 320 PM EDT...THE PUBLIC REPORTED A SEVERE THUNDERSTORM.  THIS
STORM WAS LOCATED 7 MILES NORTH OF BENSON...OR 14 MILES WEST OF
SMITHFIELD...MOVING NORTH AT 10 MPH.

HAZARDS IN THE WARNING INCLUDE...
QUARTER SIZED HAIL.

LOCATIONS IN THE PATH OF THE STORM INCLUDE... SELMA...PINE LEVEL...
MICRO AND KENLY.

THIS INCLUDES INTERSTATE 40 BETWEEN EXITS 325 AND 328.

THIS INCLUDES INTERSTATE 95 BETWEEN EXITS 79 AND 106.

THIS STORM IS PRODUCING LARGE HAIL CAPABLE OF BREAKING WINDOWS...
DAMAGING ROOFS AND DENTING VEHICLES. STAY INSIDE AWAY FROM WINDOWS
UNTIL THE STORM HAS PASSED.

THIS STORM WILL PRODUCE HEAVY RAINFALL...WHICH WILL FLOOD LOW LYING
AREAS SUCH AS DITCHES...UNDERPASSES AND OTHER AREAS OF POOR DRAINAGE.
AVOID THESE AREAS AND DO NOT CROSS FLOODED ROADS. MOTORISTS SHOULD
ALSO REDUCE DRIVING SPEEDS TO AVOID HYDROPLANING.

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 SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 900 PM EDT
WEDNESDAY EVENING FOR CENTRAL NORTH CAROLINA.

LAT...LON 3535 7854 3549 7866 3549 7865 3560 7810
      3558 7807
TIME...MOT...LOC 1924Z 187DEG 7KT 3548 7858

$$

ELLIS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 8:16 PM EDT	Special Weather Statement	RAH	Davidson, Forsyth	89 min
May 22, 8:20 PM EDT	Special Weather Statement	RAH	Randolph	55 min
May 22, 8:42 PM EDT	Severe Thunderstorm Warning	RAH	Forsyth	33 min
May 22, 8:45 PM EDT	Severe Thunderstorm Warning	RAH	Randolph	45 min
May 22, 8:48 PM EDT	Special Weather Statement	RAH	Anson	57 min
May 22, 9:18 PM EDT	Areal Flood Advisory	RAH	Forsyth	2 hr
May 22, 9:37 PM EDT	Special Weather Statement	RAH	Forsyth, Guilford	68 min
May 22, 9:45 PM EDT	Flash Flood Warning	RAH	Forsyth	3 hr
May 22, 10:24 PM EDT	Special Weather Statement	RAH	Anson	66 min
May 22, 10:46 PM EDT	Special Weather Statement	RAH	Alamance	59 min
May 22, 11:07 PM EDT	Special Weather Statement	RAH	Stanly	53 min
May 22, 11:34 PM EDT	Special Weather Statement	RAH	Randolph	41 min
May 22, 11:37 PM EDT	Special Weather Statement	RAH	Scotland	53 min
May 23, 12:16 AM EDT	Areal Flood Advisory	RAH	Montgomery, Moore, Randolph	59 min
May 23, 12:23 AM EDT	Special Weather Statement	RAH	Moore	67 min
May 23, 1:10 AM EDT	Special Weather Statement	RAH	Lee	65 min
May 23, 2:08 AM EDT	Special Weather Statement	RAH	Durham, Orange	52 min
May 23, 3:00 AM EDT	Special Weather Statement	RAH	Durham, Granville, Orange, Person	60 min
May 23, 1:31 PM EDT	Special Weather Statement	RAH	Sampson	59 min
May 23, 2:00 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Sampson, Wayne	45 min
May 23, 2:33 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Hoke, Moore	57 min
May 23, 3:29 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wake	46 min
May 23, 3:32 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Hoke, Lee, Moore	43 min
May 23, 3:57 PM EDT	Severe Thunderstorm Warning	RAH	Moore	63 min
May 23, 4:07 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wake	38 min
May 23, 4:21 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Harnett, Wake	54 min
May 23, 4:44 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Granville, Wake	41 min
May 23, 5:23 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Franklin, Granville, Vance, Wake	38 min
May 23, 5:40 PM EDT	Special Weather Statement	RAH	Cumberland	65 min
May 23, 5:44 PM EDT	Special Weather Statement	RAH	Chatham	61 min
May 23, 5:51 PM EDT	Special Weather Statement	RAH	Halifax	54 min
May 23, 5:53 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax	67 min
May 23, 6:03 PM EDT	Special Weather Statement	RAH	Vance	57 min
May 23, 6:41 PM EDT	Special Weather Statement	RAH	Orange	64 min
May 23, 6:54 PM EDT	Special Weather Statement	RAH	Edgecombe	51 min
May 23, 6:59 PM EDT	Special Weather Statement	RAH	Halifax	61 min
May 23, 7:37 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax	31 min
May 23, 7:40 PM EDT	Special Weather Statement	RAH	Edgecombe	65 min
May 23, 7:54 PM EDT	Special Weather Statement	RAH	Wayne	36 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.