Alert archive / North Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Newport/Morehead City, NC

March 27, 2021Dare County, North Carolina

NWS Newport/Morehead City, NC issued this severe thunderstorm warning at Mar 27, 2021, 8:02 PM EDT for Dare County, North Carolina. It was in force for 28 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 27, 2021, 8:02 PM EDT (00:02 UTC)
Expired
Mar 27, 2021, 8:30 PM EDT
In force
28 min
Issued by
NWS Newport/Morehead City, NC
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Dare County, NC

The radar

The Morehead City radar (KMHX), 130 km from the middle of the area, began a volume at 00:05 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 00:00Z, 0.0 hours before the alert went out and 130 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, Newport, NC at 00:00Z on 2021-03-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 830 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, Newport, NC at 00:00Z on 2021-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 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
830 J/kg
Mixed-layer CIN
-89 J/kg
Mixed-layer LCL
749 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
152 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted.

236 
WUUS52 KMHX 280002
SVRMHX
NCC055-280030-
/O.NEW.KMHX.SV.W.0008.210328T0002Z-210328T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Newport/Morehead City NC
802 PM EDT Sat Mar 27 2021

The National Weather Service in Newport has issued a

* Severe Thunderstorm Warning for...
  Southeastern Dare County in eastern North Carolina...

* Until 830 PM EDT.

* At 802 PM EDT, a severe thunderstorm was located near Frisco,
  moving east 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...
  Frisco, Avon, Buxton, Hatteras Ferry Terminal, Avon Pier and Cape
  Hatteras Lighthouse.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

Please send your reports of hail and/or wind damage, including trees
or large limbs downed, by calling the National Weather Service office
in Newport at 1-800-889-6889.

&&

LAT...LON 3545 7546 3513 7547 3507 7563 3506 7565
      3531 7575
TIME...MOT...LOC 0002Z 249DEG 53KT 3520 7559 

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

RTE
1 follow-up statement
873 
WWUS52 KMHX 280027
SVSMHX

Severe Weather Statement
National Weather Service Newport/Morehead City NC
827 PM EDT Sat Mar 27 2021

NCC055-280037-
/O.EXP.KMHX.SV.W.0008.000000T0000Z-210328T0030Z/
Dare NC-
827 PM EDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN DARE COUNTY WILL
EXPIRE AT 830 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.

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

LAT...LON 3545 7546 3513 7547 3507 7563 3506 7565
      3531 7575
TIME...MOT...LOC 0027Z 249DEG 53KT 3533 7517 

$$

RTE

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 8:13 PM EDTSpecial Marine WarningMHX92 min
Mar 27, 9:07 PM EDTSpecial Weather StatementMHXCraven, Jones, Onslow, Pamlico23 min
Mar 28, 3:53 AM EDTMarine Dense Fog AdvisoryMHX4 hr
Mar 28, 3:46 PM EDTSpecial Weather StatementMHXMartin14 min
Mar 28, 4:06 PM EDTSevere Thunderstorm WarningMHXMartin, Pitt39 min
Mar 28, 4:18 PM EDTSpecial Weather StatementMHXGreene, Pitt42 min
Mar 28, 4:44 PM EDTSpecial Weather StatementMHXDuplin, Lenoir46 min
Mar 28, 4:52 PM EDTSpecial Marine WarningMHX38 min
Mar 28, 5:18 PM EDTSpecial Weather StatementMHXWashington42 min
Mar 28, 5:32 PM EDTSevere Thunderstorm WarningMHXBeaufort, Craven, Duplin, Jones, Onslow, Pamlico43 min
Mar 28, 5:34 PM EDTSevere Thunderstorm WarningMHXTyrrell, Washington26 min
Mar 28, 5:52 PM EDTSpecial Marine WarningMHX68 min
Mar 28, 5:59 PM EDTTornado WarningMHXTyrrell19 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.