Alert archive / Delaware / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 149, NWS Philadelphia/Mount Holly

July 5, 2026Kent County, New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 5, 2026, 7:04 PM EDT for Kent County, New Castle County, Delaware. It was in force for 41 min. 1 report 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 5, 2026, 7:04 PM EDT (23:04 UTC)
Expired: Jul 5, 2026, 7:45 PM EDT
In force: 41 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

The radar

The Dover AFB radar (KDOX), 53 km from the middle of the area, began a volume at 23:04 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 5, 7:18 PM EDT	TSTM WND DMG	Smyrna, DE	Several trees down in Smyrna with a couple of them blocking roadways.

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 5, 6:44 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 11.1 hours before the alert went out and 155 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: 61 J/kg
Mixed-layer CIN: -350 J/kg
Mixed-layer LCL: 1346 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

040 
WUUS51 KPHI 052304
SVRPHI
DEC001-003-052345-
/O.NEW.KPHI.SV.W.0149.260705T2304Z-260705T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
704 PM EDT Sun Jul 5 2026

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Southwestern New Castle County in northern Delaware...
  Northwestern Kent County in central Delaware...

* Until 745 PM EDT.

* At 704 PM EDT, a severe thunderstorm was located near Cheswold, or
  7 miles west of Dover, moving north at 15 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Dover, Smyrna, Camden, Clayton, Cheswold, Hartly, Woodland Beach,
  Green Spring, Dover Speedway, Townsend, Wyoming, Kenton, Leipsic,
  Chambersville, and Rodney Village.

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.

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

&&

LAT...LON 3942 7574 3933 7542 3910 7556 3914 7573
      3924 7574
TIME...MOT...LOC 2304Z 196DEG 15KT 3920 7565 

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

$$

MPS

2 follow-up statements

203 
WWUS51 KPHI 052326
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
726 PM EDT Sun Jul 5 2026

DEC001-003-052345-
/O.CON.KPHI.SV.W.0149.000000T0000Z-260705T2345Z/
New Castle DE-Kent DE-
726 PM EDT Sun Jul 5 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR SOUTH CENTRAL NEW CASTLE AND NORTHWESTERN KENT COUNTIES...

At 726 PM EDT, a severe thunderstorm was located over Smyrna, or 10
miles north of Dover, moving northeast 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...
Smyrna, Clayton, Woodland Beach, Green Spring, Leipsic, and
Chambersville.

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.

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

&&

LAT...LON 3939 7564 3933 7543 3933 7542 3919 7551
      3929 7570
TIME...MOT...LOC 2326Z 212DEG 22KT 3931 7556 

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

$$

MPS

691 
WWUS51 KPHI 052335
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
735 PM EDT Sun Jul 5 2026

DEC001-003-052345-
/O.EXP.KPHI.SV.W.0149.000000T0000Z-260705T2345Z/
New Castle DE-Kent DE-
735 PM EDT Sun Jul 5 2026

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL NEW CASTLE AND
NORTHWESTERN KENT COUNTIES WILL EXPIRE AT 745 PM EDT...

The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 100 AM EDT for
central and northern Delaware.

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 3939 7564 3933 7543 3933 7542 3919 7551
      3929 7570
TIME...MOT...LOC 2335Z 196DEG 15KT 3934 7555 

$$

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 8:17 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	43 min
Jul 4, 8:38 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	52 min
Jul 4, 8:48 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle	57 min
Jul 4, 8:59 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	46 min
Jul 4, 9:07 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	22 min
Jul 4, 9:52 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	38 min
Jul 4, 10:52 PM EDT	Heat Advisory	PHI	Kent, New Castle, Sussex	21 hr
Jul 5, 2:33 AM EDT	Flood Watch	PHI	New Castle	41 hr
Jul 5, 5:08 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	52 min
Jul 5, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Kent	36 min

Nearby

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.