Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 128, NWS Philadelphia/Mount Holly

June 27, 2023Salem County, New Jersey; New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 27, 2023, 3:41 PM EDT for Salem County, New Jersey; New Castle County, Delaware. It was in force for 22 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
Jun 27, 2023, 3:41 PM EDT (19:41 UTC)
Expired
Jun 27, 2023, 4:03 PM EDT
In force
22 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties New Castle County, DE, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 87 km from the middle of the area, began a volume at 19:41 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.7 hours before the alert went out and 173 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, Washington/Dulle, VA at 12:00Z on 2023-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 133 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, Washington/Dulle, VA at 12:00Z on 2023-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 square meters per square second.1939Sfc1 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
133 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
1066 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
88 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

296 
WUUS51 KPHI 271941
SVRPHI
DEC003-NJC033-272030-
/O.NEW.KPHI.SV.W.0128.230627T1941Z-230627T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
341 PM EDT Tue Jun 27 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central New Castle County in northern Delaware...
  Northwestern Salem County in southern New Jersey...

* Until 430 PM EDT.

* At 341 PM EDT, a severe thunderstorm was located over Saint
  Georges, or 9 miles southeast of Newark, moving northeast at 15
  mph.

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

  SOURCE...Radar indicated.

  IMPACT...Minor damage to vehicles is possible. Wind damage to 
           roofs, siding, trees, and power lines is possible.

* Locations impacted include...
  Wilmington, Pennsville, Carneys Point, New Castle, Penns Grove,
  Delaware City, Saint Georges, Bear, Delaware Memorial Bridge,
  Wilmington Manor and Glasgow.

This includes the following highways...
 New Jersey Turnpike near exit 1.
 Interstate 295 in New Jersey between mile markers 0 and 6.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.

&&

LAT...LON 3950 7568 3959 7574 3976 7544 3966 7536
TIME...MOT...LOC 1941Z 234DEG 11KT 3957 7565 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MPS
1 follow-up statement
467 
WWUS51 KPHI 272003
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
403 PM EDT Tue Jun 27 2023

DEC003-NJC033-272013-
/O.CAN.KPHI.SV.W.0128.000000T0000Z-230627T2030Z/
New Castle DE-Salem NJ-
403 PM EDT Tue Jun 27 2023

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NEW CASTLE AND
NORTHWESTERN SALEM COUNTIES IS CANCELLED...
                
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 has been cancelled.

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

LAT...LON 3950 7568 3959 7574 3976 7544 3966 7536
TIME...MOT...LOC 2002Z 234DEG 11KT 3961 7558 

$$

MPS

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 8:42 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset48 min
Jun 26, 8:56 PM EDTAreal Flood AdvisoryPHISussex38 min
Jun 26, 8:56 PM EDTSpecial Weather StatementPHIWarren34 min
Jun 26, 9:21 PM EDTSpecial Weather StatementPHIMercer24 min
Jun 26, 9:30 PM EDTFlash Flood WarningPHIWarren3 hr
Jun 26, 9:31 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset44 min
Jun 26, 9:34 PM EDTFlash Flood WarningPHISussex2 hr
Jun 26, 9:46 PM EDTSpecial Marine WarningPHI59 min
Jun 26, 9:51 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem54 min
Jun 26, 10:07 PM EDTSpecial Weather StatementPHIMiddlesex, Morris23 min
Jun 26, 10:26 PM EDTSevere Thunderstorm WarningPHIMorris16 min
Jun 26, 10:33 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem42 min
Jun 26, 10:41 PM EDTAreal Flood AdvisoryPHISussex, Warren84 min
Jun 26, 10:54 PM EDTAreal Flood AdvisoryPHICamden, Gloucester, Salem3 hr
Jun 26, 11:07 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more53 min
Jun 26, 11:27 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Somerset3 hr
Jun 26, 11:35 PM EDTFlash Flood WarningPHIMercer6 hr
Jun 26, 11:42 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Somerset33 min
Jun 27, 12:00 AM EDTAreal Flood WarningPHIHunterdon, Morris, Somerset, Sussex, Warren7 hr
Jun 27, 12:12 AM EDTSpecial Weather StatementPHIMonmouth33 min
Jun 27, 12:16 AM EDTSpecial Marine WarningPHI44 min
Jun 27, 1:26 AM EDTSpecial Marine WarningPHI49 min
Jun 27, 2:00 AM EDTSpecial Marine WarningPHI45 min
Jun 27, 3:02 AM EDTFlood WatchPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more46 min
Jun 27, 3:48 AM EDTFlood WatchPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more17 hr
Jun 27, 4:04 AM EDTRiver Flood WarningPHIMorris22 hr
Jun 27, 11:16 AM EDTAreal Flood AdvisoryPHIMorris, Sussex3 hr
Jun 27, 11:42 AM EDTAreal Flood AdvisoryPHIMonmouth2 hr
Jun 27, 3:05 PM EDTSevere Thunderstorm WarningPHICumberland, Salem40 min
Jun 27, 3:06 PM EDTSpecial Marine WarningPHI54 min
Jun 27, 3:32 PM EDTAreal Flood AdvisoryPHICumberland, Salem3 hr
Jun 27, 3:38 PM EDTSevere Thunderstorm WarningPHICumberland, Salem52 min
Jun 27, 3:52 PM EDTSpecial Marine WarningPHI53 min
Jun 27, 4:21 PM EDTSevere Thunderstorm WarningPHICumberland, Salem39 min
Jun 27, 4:24 PM EDTAreal Flood AdvisoryPHIWarren3 hr
Jun 27, 4:33 PM EDTSevere Thunderstorm WarningPHIWarren42 min
Jun 27, 4:36 PM EDTSevere Thunderstorm WarningPHICumberland, Salem26 min
Jun 27, 4:39 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer51 min
Jun 27, 5:01 PM EDTSevere Thunderstorm WarningPHIMorris, Warren44 min
Jun 27, 5:05 PM EDTSpecial Marine WarningPHI25 min
Jun 27, 5:17 PM EDTFlash Flood WarningPHISalem4 hr
Jun 27, 5:22 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden38 min
Jun 27, 5:23 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem32 min
Jun 27, 5:40 PM EDTSpecial Weather StatementPHIHunterdon, Somerset35 min
Jun 27, 5:45 PM EDTSpecial Weather StatementPHIWarren45 min
Jun 27, 5:49 PM EDTSpecial Weather StatementPHICamden26 min
Jun 27, 5:52 PM EDTAreal Flood AdvisoryPHISussex, Warren3 hr
Jun 27, 5:52 PM EDTSpecial Weather StatementPHIBurlington38 min
Jun 27, 5:57 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Cumberland, Gloucester, Mercer, Salem3 hr
Jun 27, 6:08 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden25 min
Jun 27, 6:12 PM EDTSpecial Weather StatementPHIMiddlesex, Morris, Somerset33 min
Jun 27, 6:15 PM EDTSpecial Weather StatementPHIWarren45 min
Jun 27, 6:35 PM EDTSpecial Weather StatementPHIBurlington25 min
Jun 27, 6:40 PM EDTSpecial Marine WarningPHI36 min
Jun 27, 6:46 PM EDTSevere Thunderstorm WarningPHIMorris44 min
Jun 27, 6:49 PM EDTAreal Flood AdvisoryPHISussex3 hr
Jun 27, 6:52 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more3 hr
Jun 27, 7:03 PM EDTSpecial Weather StatementPHISussex27 min
Jun 27, 7:30 PM EDTSpecial Weather StatementPHISussex30 min
Jun 27, 7:56 PM EDTSpecial Weather StatementPHIAtlantic34 min
Jun 26, 9:19 PM EDTSpecial Weather StatementPHINew Castle26 min
Jun 26, 9:25 PM EDTSevere Thunderstorm WarningPHINew Castle50 min
Jun 26, 10:01 PM EDTFlash Flood WarningPHINew Castle4 hr
Jun 26, 10:46 PM EDTRiver Flood WarningPHINew Castle5 hr
Jun 26, 11:09 PM EDTRiver Flood WarningPHINew Castle2 hr
Jun 27, 2:09 AM EDTSpecial Weather StatementPHINew Castle21 min
Jun 27, 2:29 AM EDTSpecial Weather StatementPHINew Castle31 min
Jun 27, 2:37 AM EDTFlash Flood WarningPHINew Castle3 hr
Jun 27, 5:08 PM EDTSevere Thunderstorm WarningPHIKent37 min
Jun 27, 6:18 PM EDTSpecial Weather StatementPHIKent27 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2023Severe Thunderstorm Warnings in Delaware, 2023Every severe thunderstorm warning in 2023

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.