Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 119, NWS Philadelphia/Mount Holly

June 26, 2023New Castle County, Delaware; 4 counties in New Jersey; 5 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2023, 10:33 PM EDT for New Castle County, Delaware; 4 counties in New Jersey; 5 counties in Pennsylvania. It was in force for 42 min. 18 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: Jun 26, 2023, 10:33 PM EDT (02:33 UTC)
Expired: Jun 26, 2023, 11:15 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties New Castle County, DE, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Salem County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 76 km from the middle of the area, began a volume at 02:35 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
Jun 26, 10:43 PM EDT	TSTM WND DMG	2 Sse Middletown Twp., PA	Numerous trees and wires down around the neighborhood of Linville Road and Mount Alvaro Road. Time estimated via radar.
Jun 26, 10:43 PM EDT	TSTM WND DMG	2 Sse Middletown Twp., PA	Numerous trees and wires down around the neighborhood of Linville Road and Mount Alvaro Road. Time estimated via radar.
Jun 26, 10:48 PM EDT	TSTM WND DMG	Manayunk, PA	Downed tree on I-76 eastbound between Exit 338: GREEN LANE/BELMONT AVE and Exit 339: US 1 SOUTH - CITY AVE. There is a lane restriction. Time estimated via radar.
Jun 26, 10:48 PM EDT	TSTM WND DMG	Manayunk, PA	Downed tree on I-76 eastbound between Exit 338: GREEN LANE/BELMONT AVE and Exit 339: US 1 SOUTH - CITY AVE. There is a lane restriction. Time estimated via radar.
Jun 26, 10:50 PM EDT	TSTM WND GST 56	1 Ese Wawaset Park, DE	Broom Street Mesonet measured a 56 MPH gust.
Jun 26, 10:50 PM EDT	TSTM WND GST 56	1 Ese Wawaset Park, DE	Broom Street Mesonet measured a 56 MPH gust.
Jun 26, 10:57 PM EDT	TSTM WND DMG	Mantua, NJ	Reports of trees downed in Mantua. Time estimated via radar.
Jun 26, 10:57 PM EDT	TSTM WND DMG	Mantua, NJ	Reports of trees downed in Mantua. Time estimated via radar.
Jun 26, 10:59 PM EDT	TSTM WND DMG	Warminster, PA	Numerous trees down in Warminster. Time estimated via radar.
Jun 26, 10:59 PM EDT	TSTM WND DMG	Warminster, PA	Numerous trees down in Warminster. Time estimated via radar.
Jun 26, 11:02 PM EDT	TSTM WND DMG	Lower Southampton Twp, PA	Numerous trees down in the Lower Southampton area. Time estimated via radar.
Jun 26, 11:02 PM EDT	TSTM WND DMG	Lower Southampton Twp, PA	Numerous trees down in the Lower Southampton area. Time estimated via radar.
Jun 26, 11:02 PM EDT	TSTM WND DMG	Westville, NJ	Trees reported down in Westville. Time estimated via radar.
Jun 26, 11:02 PM EDT	TSTM WND DMG	Westville, NJ	Trees reported down in Westville. Time estimated via radar.
Jun 26, 11:05 PM EDT	TSTM WND DMG	Bensalem, PA	Trees down in Bensalem. Time estimated via radar.
Jun 26, 11:05 PM EDT	TSTM WND DMG	Bensalem, PA	Trees down in Bensalem. Time estimated via radar.
Jun 26, 11:08 PM EDT	TSTM WND DMG	Newtown, PA	Trees and wires down in Newtown Township. Time estimated via radar.
Jun 26, 11:08 PM EDT	TSTM WND DMG	Newtown, PA	Trees and wires down in Newtown Township. Time estimated via radar.

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
Jun 26, 1:11 PM EDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 2.6 hours before the alert went out and 207 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: 1362 J/kg
Mixed-layer CIN: -20 J/kg
Mixed-layer LCL: 1456 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 5 m²/s²
0-3 km storm-relative helicity: 15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

372 
WUUS51 KPHI 270233
SVRPHI
DEC003-NJC005-007-015-033-PAC017-029-045-091-101-270315-
/O.NEW.KPHI.SV.W.0119.230627T0233Z-230627T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1033 PM EDT Mon Jun 26 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northeastern New Castle County in northern Delaware...
  Northwestern Salem County in southern New Jersey...
  Northwestern Camden County in southern New Jersey...
  Northwestern Gloucester County in southern New Jersey...
  Northwestern Burlington County in southern New Jersey...
  Southeastern Montgomery County in southeastern Pennsylvania...
  Southeastern Bucks County in southeastern Pennsylvania...
  Southeastern Chester County in southeastern Pennsylvania...
  Philadelphia County in southeastern Pennsylvania...
  Delaware County in southeastern Pennsylvania...

* Until 1115 PM EDT.

* At 1031 PM EDT, a cluster of severe thunderstorms were located 
  from northern New Castle County, Delaware northeastward into 
  Philadelphia, moving northeast at 30 mph.

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

  SOURCE...Radar indicated. Wind damage has occurred in northern New 
           Castle County, Delaware.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Philadelphia, Camden, Wilmington, Gloucester City, Cherry Hill,
  Bensalem, Mount Laurel, Chester, Willingboro, Deptford, West
  Deptford, Lindenwold, Pennsville, Lumberton, Florence, Bellmawr,
  Yeadon, Woodbury, Burlington and Bristol.

This includes the following highways...
 New Jersey Turnpike between exits 1 and 6A.
 Pennsylvania Turnpike between mile markers 332 and 359.
 Northeast Extension near mile marker 21.
 Interstate 95 in Pennsylvania between mile markers 0 and 40.
 Interstate 95 in Delaware between mile markers 10 and 23.
 Interstate 76 in Pennsylvania between mile markers 330 and 351.
 Interstate 76 in New Jersey between mile markers 0 and 3.
 Interstate 295 in New Jersey between mile markers 0 and 55.
 Interstate 676 in Pennsylvania between mile markers 0 and 1.
 Interstate 676 in New Jersey between mile markers 0 and 4.
 Interstate 476 in Pennsylvania between mile markers 0 and 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to hail and damaging winds, frequent cloud to ground 
lightning is occurring with this storm. Move indoors immediately. 
Remember, if you can hear thunder, you are close enough to be struck 
by lightning.

&&

LAT...LON 3950 7558 3983 7566 4036 7501 4004 7464
TIME...MOT...LOC 0231Z 223DEG 28KT 3997 7524 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

1 follow-up statement

356 
WWUS51 KPHI 270255
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1055 PM EDT Mon Jun 26 2023

DEC003-NJC005-007-015-033-PAC017-029-045-091-101-270315-
/O.CON.KPHI.SV.W.0119.000000T0000Z-230627T0315Z/
New Castle DE-Salem NJ-Camden NJ-Gloucester NJ-Burlington NJ-
Montgomery PA-Bucks PA-Chester PA-Philadelphia PA-Delaware PA-
1055 PM EDT Mon Jun 26 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR NORTHEASTERN NEW CASTLE...NORTHWESTERN SALEM...NORTHWESTERN
CAMDEN...NORTHWESTERN GLOUCESTER...NORTHWESTERN BURLINGTON...
SOUTHEASTERN MONTGOMERY...SOUTHEASTERN BUCKS...SOUTHEASTERN
CHESTER...PHILADELPHIA AND DELAWARE COUNTIES...

At 1053 PM EDT, a cluster of severe thunderstorms was centered along 
Interstate 95 from northern New Castle County, Delaware through 
Philadelphia, moving northeast at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Philadelphia, Camden, Wilmington, Gloucester City, Cherry Hill,
Bensalem, Mount Laurel, Chester, Willingboro, Deptford, West
Deptford, Lindenwold, Pennsville, Lumberton, Florence, Bellmawr,
Yeadon, Woodbury, Burlington and Bristol.

This includes the following highways...
 New Jersey Turnpike between exits 1 and 6A.
 Pennsylvania Turnpike between mile markers 332 and 359.
 Northeast Extension near mile marker 21.
 Interstate 95 in Pennsylvania between mile markers 0 and 40.
 Interstate 95 in Delaware between mile markers 10 and 23.
 Interstate 76 in Pennsylvania between mile markers 330 and 351.
 Interstate 76 in New Jersey between mile markers 0 and 3.
 Interstate 295 in New Jersey between mile markers 0 and 55.
 Interstate 676 in Pennsylvania between mile markers 0 and 1.
 Interstate 676 in New Jersey between mile markers 0 and 4.
 Interstate 476 in Pennsylvania between mile markers 0 and 19.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 3950 7558 3983 7566 4036 7501 4004 7464
TIME...MOT...LOC 0253Z 222DEG 29KT 4011 7508 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Gorse

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 26, 9:19 PM EDT	Special Weather Statement	PHI	New Castle	26 min
Jun 26, 9:25 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	50 min
Jun 26, 9:51 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	54 min
Jun 26, 10:01 PM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Jun 26, 10:46 PM EDT	River Flood Warning	PHI	New Castle	5 hr
Jun 26, 10:54 PM EDT	Areal Flood Advisory	PHI	New Castle	3 hr
Jun 26, 11:09 PM EDT	River Flood Warning	PHI	New Castle	2 hr
Jun 27, 2:09 AM EDT	Special Weather Statement	PHI	New Castle	21 min
Jun 27, 2:29 AM EDT	Special Weather Statement	PHI	New Castle	31 min
Jun 27, 2:37 AM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Jun 27, 3:02 AM EDT	Flood Watch	PHI	New Castle	46 min
Jun 27, 3:48 AM EDT	Flood Watch	PHI	New Castle	17 hr
Jun 27, 3:05 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	40 min
Jun 27, 3:32 PM EDT	Areal Flood Advisory	PHI	Kent, New Castle	3 hr
Jun 27, 3:41 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	22 min
Jun 27, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Kent	37 min
Jun 27, 5:17 PM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Jun 27, 6:18 PM EDT	Special Weather Statement	PHI	Kent	27 min
Jun 26, 8:42 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	48 min
Jun 26, 8:56 PM EDT	Areal Flood Advisory	PHI	Sussex	38 min
Jun 26, 8:56 PM EDT	Special Weather Statement	PHI	Warren	34 min
Jun 26, 9:21 PM EDT	Special Weather Statement	PHI	Mercer	24 min
Jun 26, 9:30 PM EDT	Flash Flood Warning	PHI	Warren	3 hr
Jun 26, 9:31 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	44 min
Jun 26, 9:34 PM EDT	Flash Flood Warning	PHI	Sussex	2 hr
Jun 26, 9:46 PM EDT	Special Marine Warning	PHI		59 min
Jun 26, 10:07 PM EDT	Special Weather Statement	PHI	Middlesex, Morris	23 min
Jun 26, 10:26 PM EDT	Severe Thunderstorm Warning	PHI	Morris	16 min
Jun 26, 10:41 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	84 min
Jun 26, 11:07 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more	53 min
Jun 26, 11:27 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Somerset	3 hr
Jun 26, 11:35 PM EDT	Flash Flood Warning	PHI	Mercer	6 hr
Jun 26, 11:42 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Somerset	33 min
Jun 27, 12:00 AM EDT	Areal Flood Warning	PHI	Hunterdon, Morris, Somerset, Sussex, Warren	7 hr
Jun 27, 12:12 AM EDT	Special Weather Statement	PHI	Monmouth	33 min
Jun 27, 12:16 AM EDT	Special Marine Warning	PHI		44 min
Jun 27, 1:26 AM EDT	Special Marine Warning	PHI		49 min
Jun 27, 2:00 AM EDT	Special Marine Warning	PHI		45 min
Jun 27, 4:04 AM EDT	River Flood Warning	PHI	Morris	22 hr
Jun 27, 11:16 AM EDT	Areal Flood Advisory	PHI	Morris, Sussex	3 hr
Jun 27, 11:42 AM EDT	Areal Flood Advisory	PHI	Monmouth	2 hr
Jun 27, 3:06 PM EDT	Special Marine Warning	PHI		54 min
Jun 27, 3:38 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	52 min
Jun 27, 3:52 PM EDT	Special Marine Warning	PHI		53 min
Jun 27, 4:21 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	39 min
Jun 27, 4:24 PM EDT	Areal Flood Advisory	PHI	Warren	3 hr
Jun 27, 4:33 PM EDT	Severe Thunderstorm Warning	PHI	Warren	42 min
Jun 27, 4:36 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	26 min
Jun 27, 4:39 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	51 min
Jun 27, 5:01 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Warren	44 min
Jun 27, 5:05 PM EDT	Special Marine Warning	PHI		25 min
Jun 27, 5:22 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	38 min
Jun 27, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	32 min
Jun 27, 5:40 PM EDT	Special Weather Statement	PHI	Hunterdon, Somerset	35 min
Jun 27, 5:45 PM EDT	Special Weather Statement	PHI	Warren	45 min
Jun 27, 5:49 PM EDT	Special Weather Statement	PHI	Camden	26 min
Jun 27, 5:52 PM EDT	Areal Flood Advisory	PHI	Sussex, Warren	3 hr
Jun 27, 5:52 PM EDT	Special Weather Statement	PHI	Burlington	38 min
Jun 27, 5:57 PM EDT	Areal Flood Advisory	PHI	Burlington, Camden, Cumberland, Gloucester, Mercer, Salem	3 hr
Jun 27, 6:08 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	25 min
Jun 27, 6:12 PM EDT	Special Weather Statement	PHI	Middlesex, Morris, Somerset	33 min
Jun 27, 6:15 PM EDT	Special Weather Statement	PHI	Warren	45 min
Jun 27, 6:35 PM EDT	Special Weather Statement	PHI	Burlington	25 min
Jun 27, 6:40 PM EDT	Special Marine Warning	PHI		36 min
Jun 27, 6:46 PM EDT	Severe Thunderstorm Warning	PHI	Morris	44 min
Jun 27, 6:49 PM EDT	Areal Flood Advisory	PHI	Sussex	3 hr
Jun 27, 6:52 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more	3 hr
Jun 27, 7:03 PM EDT	Special Weather Statement	PHI	Sussex	27 min
Jun 27, 7:30 PM EDT	Special Weather Statement	PHI	Sussex	30 min
Jun 27, 7:56 PM EDT	Special Weather Statement	PHI	Atlantic	34 min
Jun 26, 8:27 PM EDT	Special Weather Statement	PHI	Chester	33 min
Jun 26, 8:33 PM EDT	Special Weather Statement	PHI	Philadelphia	27 min
Jun 26, 8:36 PM EDT	Special Weather Statement	PHI	Bucks	24 min
Jun 26, 8:40 PM EDT	Severe Thunderstorm Warning	PHI	Chester	31 min
Jun 26, 9:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks	42 min
Jun 26, 9:47 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Montgomery	43 min
Jun 26, 9:58 PM EDT	Severe Thunderstorm Warning	PHI	Chester	47 min
Jun 27, 12:51 AM EDT	Flash Flood Warning	PHI	Chester, Montgomery	4 hr
Jun 27, 1:23 AM EDT	Special Weather Statement	PHI	Montgomery	37 min
Jun 27, 2:23 AM EDT	River Flood Warning	PHI	Chester	6 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2023 Severe Thunderstorm Warnings in New Jersey, 2023 Severe Thunderstorm Warnings in Delaware, 2023 Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.