Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 5, NWS Raleigh, NC

March 18, 2021Montgomery County, Randolph County, Stanly County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Mar 18, 2021, 5:37 PM EDT for Montgomery County, Randolph County, Stanly County, North Carolina. It was in force for 38 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: Mar 18, 2021, 5:37 PM EDT (21:37 UTC)
Expired: Mar 18, 2021, 6:15 PM EDT
In force: 38 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Montgomery County, NC, Randolph County, NC, Stanly County, NC

The radar

The Raleigh/Durham radar (KRAX), 150 km from the middle of the area, began a volume at 21:39 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
Mar 18, 5:50 PM EDT	TSTM WND DMG	2 Ssw Plyler, NC	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2 SSW PLYLER. 1 TREE REPORTED DOWN.
Mar 18, 6:02 PM EDT	TSTM WND DMG	2 Ssw Plyler, NC	1 TREE REPORTED DOWN.

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
Mar 18, 4:45 PM EDT	Tornado Watch	SPC	4 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.6 hours before the alert went out and 76 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: 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.

278 
WUUS52 KRAH 182137
SVRRAH
NCC123-151-167-182215-
/O.NEW.KRAH.SV.W.0005.210318T2137Z-210318T2215Z/

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

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Montgomery County in central North Carolina...
  Southwestern Randolph County in central North Carolina...
  Stanly County in central North Carolina...

* Until 615 PM EDT.

* At 535 PM EDT, a severe thunderstorm was located near Midland, or
  11 miles southeast of Downtown Concord, moving east 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...
  Albemarle, Troy, Badin Lake, Biscoe, Seagrove, Plyler, Locust,
  Badin, Oakboro and Stanfield.

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 3543 8034 3551 8015 3551 8007 3554 8007
      3563 7983 3551 7976 3530 7971 3518 8048
      3521 8049
TIME...MOT...LOC 2135Z 248DEG 39KT 3530 8044 

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

JD

1 follow-up statement

874 
WWUS52 KRAH 182217
SVSRAH

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

NCC123-151-167-182224-
/O.EXP.KRAH.SV.W.0005.000000T0000Z-210318T2215Z/
Montgomery NC-Randolph NC-Stanly NC-
617 PM EDT Thu Mar 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR MONTGOMERY...SOUTHWESTERN
RANDOLPH AND STANLY COUNTIES WILL EXPIRE AT 615 PM EDT...
        
The storm which prompted the warning has moved out of western Stanly 
county. Therefore, the warning will be allowed to expire here.

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

Remember, a Severe Thunderstorm Warning still remains in effect for 
Northeastern Stanly, Northern Montgomery and South Central Randolph 
County until 700 PM.

LAT...LON 3543 8034 3551 8015 3551 8007 3554 8007
      3563 7983 3551 7976 3530 7971 3518 8048
      3521 8049
TIME...MOT...LOC 2214Z 248DEG 39KT 3546 7996 

$$

JD

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 3:55 PM EDT	Special Weather Statement	RAH	Davidson, Forsyth	65 min
Mar 18, 4:41 PM EDT	Tornado Warning	RAH	Davidson, Forsyth, Guilford	31 min
Mar 18, 4:54 PM EDT	Tornado Warning	RAH	Guilford, Randolph	66 min
Mar 18, 5:07 PM EDT	Severe Thunderstorm Warning	RAH	Halifax	23 min
Mar 18, 5:13 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Davidson, Guilford, Randolph	62 min
Mar 18, 5:34 PM EDT	Tornado Warning	RAH	Alamance, Guilford	26 min
Mar 18, 5:58 PM EDT	Tornado Warning	RAH	Alamance, Durham, Orange, Person	62 min
Mar 18, 6:07 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Richmond	38 min
Mar 18, 6:09 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Orange	66 min
Mar 18, 6:13 PM EDT	Severe Thunderstorm Warning	RAH	Montgomery, Moore, Randolph, Stanly	47 min
Mar 18, 6:39 PM EDT	Tornado Warning	RAH	Durham, Orange	34 min
Mar 18, 6:41 PM EDT	Tornado Warning	RAH	Granville	34 min
Mar 18, 6:45 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Hoke, Montgomery, Moore, Richmond	45 min
Mar 18, 6:57 PM EDT	Tornado Warning	RAH	Granville	48 min
Mar 18, 6:59 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Orange, Randolph	21 min
Mar 18, 7:11 PM EDT	Tornado Warning	RAH	Halifax, Vance, Warren	54 min
Mar 18, 7:12 PM EDT	Special Weather Statement	RAH	Durham, Orange	63 min
Mar 18, 7:25 PM EDT	Tornado Warning	RAH	Franklin, Vance, Warren	47 min
Mar 18, 7:30 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Hoke, Lee, Moore	45 min
Mar 18, 7:41 PM EDT	Special Weather Statement	RAH	Hoke, Scotland	64 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2021 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.