Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 262, NWS Philadelphia/Mount Holly

July 28, 2026New Castle County, Delaware; Gloucester County, Salem County, New Jersey; Chester County, Delaware County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 28, 2026, 6:23 PM EDT for New Castle County, Delaware; Gloucester County, Salem County, New Jersey; Chester County, Delaware County, Pennsylvania. It was in force for 67 min. 10 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: Jul 28, 2026, 6:23 PM EDT (22:23 UTC)
Expired: Jul 28, 2026, 7:30 PM EDT
In force: 67 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties New Castle County, DE, Gloucester County, NJ, Salem County, NJ, Chester County, PA, Delaware County, PA

The radar

The Dover AFB radar (KDOX), 103 km from the middle of the area, began a volume at 22:27 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
Jul 28, 6:35 PM EDT	TSTM WND DMG	1 Nne Thorndale, PA	Two trees down in roadway near 4200 Hazelwood Avenue. Time estimated from radar.
Jul 28, 6:35 PM EDT	TSTM WND DMG	New Garden, PA	Large Limb partially blocking lane near 236 Bucktoe Road. Time estimated from radar.
Jul 28, 6:35 PM EDT	TSTM WND DMG	Valley Twp, PA	Corrects previous tstm wnd dmg time of report from Valley Twp. Tree down in roadway. Time estimated from radar.
Jul 28, 6:40 PM EDT	TSTM WND DMG	Newport, DE	Scattered reports of a few downed trees and wires around Newport. Time estimated by radar.
Jul 28, 6:45 PM EDT	TSTM WND DMG	Wilmington, DE	Scattered reports of a few downed trees and wires around Wilmington. Time estimated by radar.
Jul 28, 6:53 PM EDT	FUNNEL CLOUD	1 Ne South Wilmington, DE	Funnel cloud observed from Route 9 and Route 13 in Wilmington.
Jul 28, 7:00 PM EDT	MARINE TSTM WIND 57	Lower Alloways Creek, NJ	NJWXNET Lower Alloways Creek.
Jul 28, 7:05 PM EDT	TSTM WND DMG	1 W Uwchlan Twp, PA	Tree down blocking roadway near intersection of Dowlin Forge Road and Fairweather drive. Time estimated from radar.
Jul 28, 7:22 PM EDT	TSTM WND DMG	1 E Coatesville, PA	Tree down on power line. Wires on fire.
Jul 28, 7:24 PM EDT	TSTM WND DMG	New Garden, PA	Telephone pole down on Kaolin Road near the intersection with Colonial Farm Road.

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
Jul 28, 12:51 PM EDT	Severe Thunderstorm Watch	SPC	8 hr
Jul 28, 4:20 PM EDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 10.4 hours before the alert went out and 170 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: 710 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 968 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 45 m²/s²
0-3 km storm-relative helicity: 174 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.2

Open this sounding in Storm Lab

The text

As transmitted.

989 
WUUS51 KPHI 282223
SVRPHI
DEC003-NJC015-033-PAC029-045-282330-
/O.NEW.KPHI.SV.W.0262.260728T2223Z-260728T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
623 PM EDT Tue Jul 28 2026

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  New Castle County in northern Delaware...
  Western Salem County in southern New Jersey...
  West central Gloucester County in southern New Jersey...
  Chester County in southeastern Pennsylvania...
  Southwestern Delaware County in southeastern Pennsylvania...

* Until 730 PM EDT.

* At 623 PM EDT, severe thunderstorms were located along a line
  extending from near Parkesburg to Glen Westover to Cecilton, moving
  east at 25 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Wilmington, Newark, Middletown, West Chester, Chester, Pennsville,
  Coatesville, Westtown, Carneys Point, Downingtown, Elsmere, Kennett
  Square, New Castle, Penns Grove, Salem, Parkesburg, Woodstown,
  Alloway, West Grove, and Quinton.

This includes the following highways...
 New Jersey Turnpike near exit 1.
 Pennsylvania Turnpike between mile markers 310 and 320.
 Interstate 95 in Pennsylvania between mile markers 0 and 5.
 Interstate 95 in Delaware between mile markers 1 and 23.
 Interstate 295 in New Jersey between mile markers 0 and 13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM EDT for northern
Delaware...southern New Jersey...and southeastern Pennsylvania.

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

A Tornado Watch remains in effect until 1000 PM EDT for northern
Delaware...southern New Jersey...and southeastern Pennsylvania.

&&

LAT...LON 3993 7598 3997 7598 4004 7594 4012 7554
      3971 7527 3946 7540 3945 7541 3943 7541
      3939 7543 3942 7577 3972 7579 3972 7587
      3991 7600
TIME...MOT...LOC 2223Z 269DEG 23KT 3994 7597 3972 7577 3943 7585 

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

$$

MJL

2 follow-up statements

862 
WWUS51 KPHI 282311
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
711 PM EDT Tue Jul 28 2026

DEC003-NJC015-033-PAC029-045-282330-
/O.CON.KPHI.SV.W.0262.000000T0000Z-260728T2330Z/
New Castle DE-Salem NJ-Gloucester NJ-Chester PA-Delaware PA-
711 PM EDT Tue Jul 28 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR EASTERN NEW CASTLE...WESTERN SALEM...WEST CENTRAL GLOUCESTER...
CENTRAL CHESTER AND SOUTHWESTERN DELAWARE COUNTIES...

At 711 PM EDT, severe thunderstorms were located along a line
extending from West Chester to near Beckett to near Newport Meadows,
moving east at 25 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Wilmington, West Chester, Chester, Pennsville, Coatesville, Westtown,
Carneys Point, Downingtown, Elsmere, Kennett Square, New Castle,
Penns Grove, Salem, Woodstown, Alloway, Quinton, Swedesboro, Delaware
City, Newport, and Arden.

This includes the following highways...
 New Jersey Turnpike near exit 1.
 Pennsylvania Turnpike between mile markers 310 and 320.
 Interstate 95 in Pennsylvania between mile markers 0 and 5.
 Interstate 95 in Delaware between mile markers 7 and 23.
 Interstate 295 in New Jersey between mile markers 0 and 13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM EDT for northern
Delaware...southern New Jersey...and southeastern Pennsylvania.

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4012 7554 3971 7527 3946 7540 3945 7541
      3943 7541 3939 7543 3941 7564 3979 7568
      4004 7594 4004 7593
TIME...MOT...LOC 2311Z 269DEG 23KT 3995 7559 3972 7539 3943 7547 

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

$$

MJL

466 
WWUS51 KPHI 282324
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
724 PM EDT Tue Jul 28 2026

DEC003-NJC015-033-PAC029-045-282331-
/O.EXP.KPHI.SV.W.0262.000000T0000Z-260728T2330Z/
New Castle DE-Salem NJ-Gloucester NJ-Chester PA-Delaware PA-
724 PM EDT Tue Jul 28 2026

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN NEW CASTLE...WESTERN
SALEM...WEST CENTRAL GLOUCESTER...CENTRAL CHESTER AND SOUTHWESTERN
DELAWARE COUNTIES WILL EXPIRE AT 730 PM EDT...

The storms which prompted the warning have moved out New Castle 
county in Delaware. Therefore, the warning will be allowed to 
expire. However heavy rain is still possible with these 
thunderstorms.

A Severe Thunderstorm Warning still remains in effect for Salem and 
Gloucester counties in New Jersey... and central Chester and 
southwestern Delaware counties in Pennsylvania... until 8PM EDT.

A Tornado Watch remains in effect until 1000 PM EDT for northern
Delaware...southern New Jersey...and southeastern Pennsylvania.

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 4012 7554 3971 7527 3946 7540 3945 7541
      3943 7541 3939 7543 3941 7564 3979 7568
      4004 7594 4004 7593
TIME...MOT...LOC 2321Z 269DEG 23KT 3995 7552 3972 7532 3943 7540 

$$

MJL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 5:29 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	61 min
Jul 28, 5:53 PM EDT	Severe Thunderstorm Warning	PHI	Kent	52 min
Jul 28, 6:08 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	52 min
Jul 28, 6:16 PM EDT	Tornado Warning	PHI	New Castle	29 min
Jul 28, 6:38 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Kent, New Castle	67 min
Jul 28, 6:46 PM EDT	Tornado Warning	PHI	New Castle	29 min
Jul 28, 6:55 PM EDT	Severe Thunderstorm Warning	PHI	Kent	50 min
Jul 28, 6:59 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	61 min
Jul 28, 7:11 PM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Jul 28, 7:40 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	50 min
Jul 28, 1:22 PM EDT	Severe Thunderstorm Warning	PHI	Warren	38 min
Jul 28, 1:31 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Morris, Somerset, Warren	44 min
Jul 28, 1:49 PM EDT	Tornado Warning	PHI	Sussex, Warren	26 min
Jul 28, 2:04 PM EDT	Flash Flood Warning	PHI	Warren	10 hr
Jul 28, 2:11 PM EDT	Flash Flood Warning	PHI	Hunterdon, Mercer, Somerset	4 hr
Jul 28, 2:15 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	45 min
Jul 28, 2:45 PM EDT	Flash Flood Warning	PHI	Hunterdon, Morris, Warren	9 hr
Jul 28, 2:56 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Sussex	49 min
Jul 28, 3:04 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth	41 min
Jul 28, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	23 min
Jul 28, 4:02 PM EDT	Flash Flood Warning	PHI	Middlesex	2 hr
Jul 28, 5:22 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	34 min
Jul 28, 5:47 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	43 min
Jul 28, 6:10 PM EDT	Special Marine Warning	PHI		2 hr
Jul 28, 6:16 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	25 min
Jul 28, 6:17 PM EDT	Flash Flood Warning	PHI	Hunterdon, Warren	6 hr
Jul 28, 7:06 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	54 min
Jul 28, 7:23 PM EDT	Special Marine Warning	PHI		2 hr
Jul 28, 7:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland, Salem	23 min
Jul 28, 7:55 PM EDT	Flash Flood Warning	PHI	Hunterdon	4 hr
Jul 27, 8:01 PM EDT	Severe Thunderstorm Warning	PHI	Chester	23 min
Jul 28, 1:02 PM EDT	Flash Flood Warning	PHI	Lehigh, Monroe, Northampton	4 hr
Jul 28, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	15 min
Jul 28, 5:55 PM EDT	Flash Flood Warning	PHI	Berks	3 hr
Jul 28, 6:56 PM EDT	Flash Flood Warning	PHI	Bucks, Lehigh, Northampton	5 hr
Jul 28, 7:08 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	35 min
Jul 28, 7:24 PM EDT	Flash Flood Warning	PHI	Chester	4 hr
Jul 28, 7:31 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Northampton	44 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2026 Severe Thunderstorm Warnings in Pennsylvania, 2026 Severe Thunderstorm Warnings in Delaware, 2026 Every severe thunderstorm warning in 2026

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.