Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 4, NWS Philadelphia/Mount Holly

March 11, 20264 states

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 11, 2026, 8:28 PM EDT for 4 states. It was in force for 47 min. 23 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: Mar 11, 2026, 8:28 PM EDT (00:28 UTC)
Expired: Mar 11, 2026, 9:15 PM EDT
In force: 47 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Kent County, DE, New Castle County, DE, Caroline County, MD, Kent County, MD, Queen Anne's County, MD, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA

The radar

The Dover AFB radar (KDOX), 90 km from the middle of the area, began a volume at 00:32 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
Mar 11, 8:32 PM EDT	TSTM WND GST 50	1 Wsw Hayden Park, DE	Mesonet station DEL20 I-95 At Sr 141.
Mar 11, 8:32 PM EDT	TSTM WND GST 60	1 S Odessa, DE	Mesonet station DEL13 Us 1 At Appoquinimink River.
Mar 11, 8:35 PM EDT	TSTM WND GST 53	3 W Mount Pleasant, DE	Mesonet station FW7093 Middletown.
Mar 11, 8:37 PM EDT	TSTM WND GST 48	1 Ne Midvale, DE	ASOS station KILG Wilmington.
Mar 11, 8:40 PM EDT	TSTM WND GST 41	Lower Alloways Creek, NJ	NJWxNet at Lower Alloways Creek.
Mar 11, 8:40 PM EDT	TSTM WND GST 44	Port Penn, DE	Mesonet station DPPN Port Penn DE-VFC.
Mar 11, 8:40 PM EDT	MARINE TSTM WIND 41	Lower Alloways Creek, NJ	NJWxNet at Lower Alloways Creek.
Mar 11, 8:40 PM EDT	MARINE TSTM WIND 44	Port Penn, DE	Mesonet station DPPN Port Penn DE-VFC.
Mar 11, 8:50 PM EDT	TSTM WND GST 45	1 Nw South Harrison Twp, NJ	Mesonet station NJ16 South Harrison.
Mar 11, 8:51 PM EDT	TSTM WND DMG	3 Wnw Elk Twp, NJ	Downed Tree on NJ 77 Southbound South of CR 538/Elk Rd (Elk Twp), 1 right lane of 2 lanes, right shoulder closed. Time estimated from radar.
Mar 11, 8:52 PM EDT	TSTM WND DMG	1 Wsw Pitman, NJ	Numerous trees down in Gloucester County, including near Pittman. Time estimated.
Mar 11, 8:53 PM EDT	TSTM WND DMG	Mullica Hill, NJ	Few trees down along Mullica Hill Road; both full size soccer nets and benches on the turf flipped over at South Jersey Technical College.
Mar 11, 8:55 PM EDT	TSTM WND DMG	Glassboro, NJ	Numerous trees down in Gloucester County, including near Glassboro. Time estimated.
Mar 11, 8:56 PM EDT	TSTM WND DMG	Washington Twp, NJ	Numerous trees down in Gloucester County, including in Washington Township. Time estimated.
Mar 11, 8:58 PM EDT	TSTM WND GST 62	Olivet, NJ	62 MPH Wind Gust with branches knocked over from straight line winds. Cloud to ground lightning. Time estimated from radar.
Mar 11, 9:00 PM EDT	TSTM WND DMG	Elk Twp, NJ	Pictures sent in of several downed trees around Elk Township.
Mar 11, 9:00 PM EDT	TSTM WND GST 54	2 Ene Upper Deerfield T, NJ	NJWxNet Mesonet station NJ50 Upper Deerfield.
Mar 11, 9:00 PM EDT	TSTM WND GST 54	2 Sse Washington Twp, NJ	CWOP station DW9082 Washington Township.
Mar 11, 9:02 PM EDT	TSTM WND DMG	Clayton, NJ	Numerous trees down in Gloucester County, including near Clayton. Time estimated.
Mar 11, 9:04 PM EDT	TSTM WND DMG	Gloucester Twp, NJ	Trees and wires down in Gloucester Township. Time estimated from radar.
Mar 11, 9:07 PM EDT	TSTM WND DMG	Haddon Heights, NJ	Downed Pole/Wires on US 30 Both Directions East of CR 645/Graisbury Av (Audubon), All lanes closed eastbound; All lanes closed westbound. Time estimated from radar.
Mar 11, 9:07 PM EDT	TSTM WND DMG	Stratford, NJ	Trees and wires down in Stratford. Time estimated from radar.
Mar 11, 9:12 PM EDT	TSTM WND DMG	Cherry Hill, NJ	Trees and wires down in Cherry Hill. Time estimated from 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
Mar 11, 7:03 PM EDT	Severe Thunderstorm Watch	SPC	3 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 0.5 hours before the alert went out and 185 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: 263 J/kg
Mixed-layer CIN: -149 J/kg
Mixed-layer LCL: 1698 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 435 m²/s²
0-3 km storm-relative helicity: 489 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

015 
WUUS51 KPHI 120028
SVRPHI
DEC001-003-MDC011-029-035-NJC007-011-015-033-PAC045-120115-
/O.NEW.KPHI.SV.W.0004.260312T0028Z-260312T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
828 PM EDT Wed Mar 11 2026

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  New Castle County in northern Delaware...
  Northern Kent County in central Delaware...
  Northeastern Queen Anne's County in northeastern Maryland...
  Northeastern Caroline County in eastern Maryland...
  Northeastern Kent County in northeastern Maryland...
  Western Cumberland County in southern New Jersey...
  Salem County in southern New Jersey...
  Northwestern Camden County in southern New Jersey...
  Gloucester County in southern New Jersey...
  South central Delaware County in southeastern Pennsylvania...

* Until 915 PM EDT.

* At 828 PM EDT, severe thunderstorms were located along a line
  extending from Stanton to 6 miles northeast of Hope, moving east 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...
  Camden, Wilmington, Dover, Newark, Bridgeton, Middletown,
  Gloucester City, Cherry Hill, Chester, Deptford, West Deptford,
  Glassboro, Lindenwold, Pennsville, Bellmawr, Woodbury, Smyrna,
  Pitman, Carneys Point, and Elsmere.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3937 7585 3938 7577 3957 7578 3977 7571
      3986 7541 3985 7525 3988 7515 3994 7513
      3997 7502 3995 7502 3992 7497 3908 7527
      3901 7598
TIME...MOT...LOC 0028Z 255DEG 31KT 3972 7566 3910 7588 

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

$$

Hoeflich

2 follow-up statements

509 
WWUS51 KPHI 120043
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
843 PM EDT Wed Mar 11 2026

MDC011-029-035-PAC045-120053-
/O.CAN.KPHI.SV.W.0004.000000T0000Z-260312T0115Z/
Queen Anne's MD-Caroline MD-Kent MD-Delaware PA-
843 PM EDT Wed Mar 11 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN QUEEN ANNE'S...
NORTHEASTERN CAROLINE...NORTHEASTERN KENT AND SOUTH CENTRAL DELAWARE
COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central and northern Delaware...eastern and northeastern Maryland...
southern New Jersey...and southeastern Pennsylvania.

LAT...LON 3955 7562 3976 7552 3978 7545 3985 7533
      3985 7525 3988 7515 3990 7513 3994 7513
      3997 7502 3995 7502 3992 7497 3908 7527
      3903 7574 3938 7577
TIME...MOT...LOC 0043Z 255DEG 31KT 3975 7550 3913 7572 

$$

DEC001-003-NJC007-011-015-033-120115-
/O.CON.KPHI.SV.W.0004.000000T0000Z-260312T0115Z/
New Castle DE-Kent DE-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
843 PM EDT Wed Mar 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR SOUTHEASTERN NEW CASTLE...NORTHERN KENT...WESTERN CUMBERLAND...
SALEM...NORTHWESTERN CAMDEN AND GLOUCESTER COUNTIES...

At 843 PM EDT, severe thunderstorms were located along a line
extending from Wilmington to near Hartly, moving east 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...
Camden, Wilmington, Dover, Bridgeton, Middletown, Gloucester City,
Cherry Hill, Deptford, West Deptford, Glassboro, Lindenwold,
Pennsville, Bellmawr, Woodbury, Smyrna, Pitman, Carneys Point,
Paulsboro, New Castle, and Penns Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3955 7562 3976 7552 3978 7545 3985 7533
      3985 7525 3988 7515 3990 7513 3994 7513
      3997 7502 3995 7502 3992 7497 3908 7527
      3903 7574 3938 7577
TIME...MOT...LOC 0043Z 255DEG 31KT 3975 7550 3913 7572 

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

$$

Hoeflich

674 
WWUS51 KPHI 120055
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
855 PM EDT Wed Mar 11 2026

DEC003-120104-
/O.CAN.KPHI.SV.W.0004.000000T0000Z-260312T0115Z/
New Castle DE-
855 PM EDT Wed Mar 11 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN NEW CASTLE COUNTY
IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
central Delaware...southern New Jersey...and southeastern
Pennsylvania.

LAT...LON 3985 7527 3985 7524 3988 7515 3990 7513
      3993 7513 3993 7498 3991 7497 3984 7499
      3917 7524 3908 7565
TIME...MOT...LOC 0054Z 248DEG 47KT 3978 7519 3917 7556 

$$

DEC001-NJC007-011-015-033-120115-
/O.CON.KPHI.SV.W.0004.000000T0000Z-260312T0115Z/
Kent DE-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
855 PM EDT Wed Mar 11 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM EDT
FOR NORTHEASTERN KENT...WESTERN CUMBERLAND...CENTRAL SALEM...
NORTHWESTERN CAMDEN AND CENTRAL GLOUCESTER COUNTIES...

At 854 PM EDT, severe thunderstorms were located along a line
extending from near Mullica Hill to Dover Speedway, moving east at 55
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Dover, Bridgeton, Gloucester City, Cherry Hill, Deptford, West
Deptford, Glassboro, Lindenwold, Bellmawr, Woodbury, Pitman, Clayton,
Paulsboro, Magnolia, Westville, Woodstown, Alloway, Camden, Woodbury
Heights, and National Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3985 7527 3985 7524 3988 7515 3990 7513
      3993 7513 3993 7498 3991 7497 3984 7499
      3917 7524 3908 7565
TIME...MOT...LOC 0054Z 248DEG 47KT 3978 7519 3917 7556 

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

$$

Hoeflich

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 11, 8:36 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	39 min
Mar 11, 8:58 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more	47 min
Mar 11, 9:02 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May, Cumberland, Gloucester, Salem	43 min
Mar 11, 9:16 PM EDT	Special Marine Warning	PHI		86 min
Mar 11, 9:57 PM EDT	Special Marine Warning	PHI		44 min
Mar 11, 8:10 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery	50 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2026 Severe Thunderstorm Warnings in Maryland, 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.