Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 124, NWS Philadelphia/Mount Holly

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

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 27, 2023, 3:05 PM EDT for Cumberland County, Salem County, New Jersey; New Castle County, Delaware. It was in force for 40 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, 3:05 PM EDT (19:05 UTC)
Expired
Jun 27, 2023, 3:45 PM EDT
In force
40 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties New Castle County, DE, Cumberland County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 69 km from the middle of the area, began a volume at 19:05 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.1 hours before the alert went out and 166 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.

141 
WUUS51 KPHI 271905
SVRPHI
DEC003-NJC011-033-271945-
/O.NEW.KPHI.SV.W.0124.230627T1905Z-230627T1945Z/

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

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southwestern New Castle County in northern Delaware...
  Western Cumberland County in southern New Jersey...
  Southwestern Salem County in southern New Jersey...

* Until 345 PM EDT.

* At 305 PM EDT, severe thunderstorms were located along a line
  extending from near Mount Pleasant to near Middletown, 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...
  Middletown, Pennsville, New Castle, Salem, Delaware City, Saint
  Georges, Mount Pleasant, Green Spring, Glasgow, Bear, Hancocks
  Bridge, Newport Meadows, Port Penn, Wilmington Manor, Hope Creek,
  Townsend, Odessa and Chambersville.

This includes Interstate 95 in Delaware near mile marker 10.
 
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 3971 7560 3939 7535 3935 7549 3936 7551
      3935 7554 3935 7556 3934 7555 3932 7558
      3930 7566 3946 7578 3960 7578
TIME...MOT...LOC 1905Z 237DEG 14KT 3954 7574 3940 7564 

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

$$

MPS
1 follow-up statement
701 
WWUS51 KPHI 271942
SVSPHI

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

DEC003-NJC011-033-271951-
/O.EXP.KPHI.SV.W.0124.000000T0000Z-230627T1945Z/
New Castle DE-Cumberland NJ-Salem NJ-
342 PM EDT Tue Jun 27 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN NEW CASTLE...
WESTERN CUMBERLAND AND SOUTHWESTERN SALEM COUNTIES WILL EXPIRE AT 345
PM EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with these
thunderstorms.

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

Remember, Severe Thunderstorm Warnings are still in effect for New 
Castle and Salem counties until 4:30 pm.

LAT...LON 3971 7560 3939 7535 3935 7549 3936 7551
      3935 7554 3935 7556 3934 7555 3932 7558
      3930 7566 3946 7578 3960 7578
TIME...MOT...LOC 1941Z 237DEG 14KT 3961 7559 3947 7549 

$$

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, 3:06 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, 3:41 PM EDTSevere Thunderstorm WarningPHISalem22 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.