Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 14, NWS Raleigh, NC

March 26, 20215 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Mar 26, 2021, 10:46 AM EDT for 5 counties in North Carolina. It was in force for 44 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 26, 2021, 10:46 AM EDT (14:46 UTC)
Expired
Mar 26, 2021, 11:30 AM EDT
In force
44 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chatham County, NC, Franklin County, NC, Lee County, NC, Nash County, NC, Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 12 km from the middle of the area, began a volume at 14:50 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 2.8 hours before the alert went out and 124 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 2021-03-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 151 joules per kilogram.LCLLFCEL10008507005003002001001 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 2021-03-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 260 square meters per square second.1939587897117Sfc1 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
151 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
648 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
260 m²/s²
0-3 km storm-relative helicity
323 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

293 
WUUS52 KRAH 261446
SVRRAH
NCC037-069-105-127-183-261530-
/O.NEW.KRAH.SV.W.0014.210326T1446Z-210326T1530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Raleigh NC
1046 AM EDT Fri Mar 26 2021

The National Weather Service in Raleigh has issued a

* Severe Thunderstorm Warning for...
  Southwestern Nash County in central North Carolina...
  Northeastern Lee County in central North Carolina...
  Wake County in central North Carolina...
  Southeastern Chatham County in central North Carolina...
  Southwestern Franklin County in central North Carolina...

* Until 1130 AM EDT.

* At 1046 AM EDT, a severe thunderstorm was located 11 miles
  southeast of Pittsboro, moving northeast at 65 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Raleigh, Cary, Garner, Fuquay-Varina, Zebulon, Bunn, Apex, Holly
  Springs, Morrisville and Knightdale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3607 7821 3583 7807 3577 7825 3582 7826
      3569 7848 3557 7887 3558 7891 3553 7896
      3550 7906 3567 7916
TIME...MOT...LOC 1446Z 244DEG 56KT 3563 7901 

HAIL...1.00IN
WIND...60MPH
 
$$

Green
3 follow-up statements
516 
WWUS52 KRAH 261459
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
1059 AM EDT Fri Mar 26 2021

NCC037-105-261509-
/O.CAN.KRAH.SV.W.0014.000000T0000Z-210326T1530Z/
Lee NC-Chatham NC-
1059 AM EDT Fri Mar 26 2021

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

LAT...LON 3607 7821 3583 7807 3577 7825 3582 7826
      3569 7848 3557 7887 3565 7897 3577 7893
TIME...MOT...LOC 1459Z 243DEG 53KT 3568 7884 

$$

NCC069-127-183-261530-
/O.CON.KRAH.SV.W.0014.000000T0000Z-210326T1530Z/
Nash NC-Wake NC-Franklin NC-
1059 AM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT
FOR SOUTHWESTERN NASH...WAKE AND SOUTHWESTERN FRANKLIN COUNTIES...

At 1059 AM EDT, a severe thunderstorm was located near Cary, moving
northeast at 60 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Raleigh, Cary, Garner, Fuquay-Varina, Zebulon, Bunn, Apex, Holly
Springs, Morrisville and Knightdale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3607 7821 3583 7807 3577 7825 3582 7826
      3569 7848 3557 7887 3565 7897 3577 7893
TIME...MOT...LOC 1459Z 243DEG 53KT 3568 7884 

HAIL...1.00IN
WIND...60MPH
 
$$

Green
142 
WWUS52 KRAH 261515
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
1115 AM EDT Fri Mar 26 2021

NCC069-127-183-261530-
/O.CON.KRAH.SV.W.0014.000000T0000Z-210326T1530Z/
Nash NC-Wake NC-Franklin NC-
1115 AM EDT Fri Mar 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 AM EDT
FOR SOUTHWESTERN NASH...EAST CENTRAL WAKE AND SOUTH CENTRAL FRANKLIN
COUNTIES...

At 1114 AM EDT, a severe thunderstorm was located near Raleigh,
moving northeast at 65 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Raleigh, Garner, Zebulon, Bunn, Knightdale, Wendell, Rolesville,
Middlesex and Pilot.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3605 7820 3583 7807 3577 7825 3582 7826
      3569 7848 3566 7858 3581 7872
TIME...MOT...LOC 1514Z 244DEG 56KT 3577 7856 

HAIL...1.00IN
WIND...60MPH
 
$$

Green
727 
WWUS52 KRAH 261529
SVSRAH

Severe Weather Statement
National Weather Service Raleigh NC
1129 AM EDT Fri Mar 26 2021

NCC069-127-183-261538-
/O.EXP.KRAH.SV.W.0014.000000T0000Z-210326T1530Z/
Nash NC-Wake NC-Franklin NC-
1129 AM EDT Fri Mar 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NASH...EAST
CENTRAL WAKE AND SOUTH CENTRAL FRANKLIN COUNTIES WILL EXPIRE AT 1130
AM 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 are still possible with this thunderstorm.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Raleigh.

LAT...LON 3605 7820 3583 7807 3577 7825 3582 7826
      3569 7848 3566 7858 3581 7872
TIME...MOT...LOC 1528Z 244DEG 56KT 3576 7860 

$$

Green

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 25, 8:24 PM EDTSpecial Weather StatementRAHPerson36 min
Mar 25, 8:48 PM EDTSpecial Weather StatementRAHOrange42 min
Mar 26, 4:05 AM EDTSpecial Weather StatementRAHDavidson, Forsyth, Guilford, Randolph85 min
Mar 26, 10:32 AM EDTSpecial Weather StatementRAHChatham, Lee, Montgomery, Moore, Stanly, Wake43 min
Mar 26, 11:11 AM EDTSpecial Weather StatementRAHHarnett, Moore64 min
Mar 26, 12:24 PM EDTSpecial Weather StatementRAHScotland66 min
Mar 26, 1:31 PM EDTSpecial Weather StatementRAHHarnett, Lee, Moore59 min
Mar 26, 2:32 PM EDTSpecial Weather StatementRAHScotland58 min
Mar 26, 3:13 PM EDTSpecial Weather StatementRAHCumberland62 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.