Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 11, NWS Raleigh, NC

March 18, 20215 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Mar 18, 2021, 7:30 PM EDT for 5 counties in 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
Mar 18, 2021, 7:30 PM EDT (23:30 UTC)
Expired
Mar 18, 2021, 8:15 PM EDT
In force
45 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Cumberland County, NC, Harnett County, NC, Hoke County, NC, Lee County, NC, Moore County, NC

The radar

The Raleigh/Durham radar (KRAX), 102 km from the middle of the area, began a volume at 23:30 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.

IssuedProductOfficeLasted
Mar 18, 4:45 PM EDTTornado WatchSPC4 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.5 hours before the alert went out and 113 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 2021-03-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-03-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 470 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
486 m above ground
0-6 km bulk shear
67 kt
0-1 km storm-relative helicity
470 m²/s²
0-3 km storm-relative helicity
562 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

609 
WUUS52 KRAH 182330
SVRRAH
NCC051-085-093-105-125-190015-
/O.NEW.KRAH.SV.W.0011.210318T2330Z-210319T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
730 PM EDT Thu Mar 18 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Southern Moore County in central North Carolina...
  Western Harnett County in central North Carolina...
  Northwestern Cumberland County in central North Carolina...
  Southeastern Lee County in central North Carolina...
  Northern Hoke County in central North Carolina...

* Until 815 PM EDT.

* At 730 PM EDT, a severe thunderstorm was located over Southern
  Pines, moving northeast at 45 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Fayetteville, Southern Pines, Lillington, Fort Bragg, Pinehurst,
  Aberdeen, Pope AFB, Spring Lake, Whispering Pines and Pinebluff.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 900 PM EDT for central North
Carolina.

For your protection move to an interior room on the lowest floor of a
building.

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.

&&

LAT...LON 3506 7948 3507 7953 3507 7958 3510 7958
      3512 7957 3514 7960 3523 7962 3553 7887
      3515 7877 3503 7945
TIME...MOT...LOC 2330Z 243DEG 37KT 3518 7937 

HAIL...0.75IN
WIND...60MPH
 
$$

JD
2 follow-up statements
430 
WWUS52 KRAH 182359
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
759 PM EDT Thu Mar 18 2021

NCC093-105-125-190007-
/O.CAN.KRAH.SV.W.0011.000000T0000Z-210319T0015Z/
Moore NC-Lee NC-Hoke NC-
759 PM EDT Thu Mar 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MOORE...SOUTHEASTERN
LEE AND NORTHERN HOKE COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM EDT for central North
Carolina.

LAT...LON 3519 7910 3521 7915 3524 7917 3525 7919
      3527 7922 3546 7903 3553 7887 3520 7879
      3513 7911
TIME...MOT...LOC 2357Z 243DEG 37KT 3531 7906 

$$

NCC051-085-190015-
/O.CON.KRAH.SV.W.0011.000000T0000Z-210319T0015Z/
Harnett NC-Cumberland NC-
759 PM EDT Thu Mar 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM EDT
FOR WESTERN HARNETT AND NORTHWESTERN CUMBERLAND COUNTIES...

At 757 PM EDT, a severe thunderstorm was located 9 miles north of
Pope AFB, or 12 miles north of Fort Bragg, moving northeast at 45
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Lillington, Fort Bragg, Pope AFB, Spring Lake, Olivia, Pineview,
Anderson Creek, Timberlake, Seminole and Raven Rock State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 900 PM EDT for central North
Carolina.

For your protection move to an interior room on the lowest floor of a
building.

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.

&&

LAT...LON 3519 7910 3521 7915 3524 7917 3525 7919
      3527 7922 3546 7903 3553 7887 3520 7879
      3513 7911
TIME...MOT...LOC 2357Z 243DEG 37KT 3531 7906 

HAIL...<.75IN
WIND...60MPH
 
$$

JD
867 
WWUS52 KRAH 190011
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
811 PM EDT Thu Mar 18 2021

NCC051-085-190020-
/O.EXP.KRAH.SV.W.0011.000000T0000Z-210319T0015Z/
Harnett NC-Cumberland NC-
811 PM EDT Thu Mar 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN HARNETT AND
NORTHWESTERN CUMBERLAND COUNTIES WILL EXPIRE AT 815 PM EDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

A Tornado Watch remains in effect until 900 PM EDT for central North
Carolina.

LAT...LON 3519 7910 3521 7915 3524 7917 3525 7919
      3527 7922 3546 7903 3553 7887 3520 7879
      3513 7911
TIME...MOT...LOC 0010Z 245DEG 29KT 3533 7899 

$$

JD

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 3:55 PM EDTSpecial Weather StatementRAHDavidson, Forsyth65 min
Mar 18, 4:41 PM EDTTornado WarningRAHDavidson, Forsyth, Guilford31 min
Mar 18, 4:54 PM EDTTornado WarningRAHGuilford, Randolph66 min
Mar 18, 5:07 PM EDTSevere Thunderstorm WarningRAHHalifax23 min
Mar 18, 5:13 PM EDTSevere Thunderstorm WarningRAHAlamance, Chatham, Davidson, Guilford, Randolph62 min
Mar 18, 5:34 PM EDTTornado WarningRAHAlamance, Guilford26 min
Mar 18, 5:37 PM EDTSevere Thunderstorm WarningRAHMontgomery, Randolph, Stanly38 min
Mar 18, 5:58 PM EDTTornado WarningRAHAlamance, Durham, Orange, Person62 min
Mar 18, 6:07 PM EDTSevere Thunderstorm WarningRAHAnson, Richmond38 min
Mar 18, 6:09 PM EDTSevere Thunderstorm WarningRAHAlamance, Orange66 min
Mar 18, 6:13 PM EDTSevere Thunderstorm WarningRAHMontgomery, Moore, Randolph, Stanly47 min
Mar 18, 6:39 PM EDTTornado WarningRAHDurham, Orange34 min
Mar 18, 6:41 PM EDTTornado WarningRAHGranville34 min
Mar 18, 6:45 PM EDTSevere Thunderstorm WarningRAHAnson, Hoke, Montgomery, Moore, Richmond45 min
Mar 18, 6:57 PM EDTTornado WarningRAHGranville48 min
Mar 18, 6:59 PM EDTSevere Thunderstorm WarningRAHAlamance, Chatham, Orange, Randolph21 min
Mar 18, 7:11 PM EDTTornado WarningRAHHalifax, Vance, Warren54 min
Mar 18, 7:12 PM EDTSpecial Weather StatementRAHDurham, Orange63 min
Mar 18, 7:25 PM EDTTornado WarningRAHFranklin, Vance, Warren47 min
Mar 18, 7:41 PM EDTSpecial Weather StatementRAHHoke, Scotland64 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021Every severe thunderstorm warning in 2021

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.