Alert archive / Delaware / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 82, NWS Philadelphia/Mount Holly

June 19, 2025Caroline County, Maryland; Kent County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2025, 6:14 PM EDT for Caroline County, Maryland; Kent County, Sussex County, Delaware. It was in force for 46 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: Jun 19, 2025, 6:14 PM EDT (22:14 UTC)
Expired: Jun 19, 2025, 7:00 PM EDT
In force: 46 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Kent County, DE, Sussex County, DE, Caroline County, MD

The radar

The Dover AFB radar (KDOX), 6 km from the middle of the area, began a volume at 22:16 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 19, 6:57 PM EDT	MARINE TSTM WIND 49	2 Nw Lewes, DE	Corrects previous marine tstm wind report from 2 NW Lewes. Lewes mesonet gusted to 39 kt.

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 19, 1:46 PM EDT	Severe Thunderstorm Watch	SPC	9 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.2 hours before the alert went out and 96 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: -108 J/kg
Mixed-layer LCL: 1250 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 124 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.8

Open this sounding in Storm Lab

The text

As transmitted.

259 
WUUS51 KPHI 192214 RRA
SVRPHI
DEC001-005-MDC011-192300-
/O.NEW.KPHI.SV.W.0082.250619T2214Z-250619T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
614 PM EDT Thu Jun 19 2025

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northern Sussex County in southern Delaware...
  Southern Kent County in central Delaware...
  Southeastern Caroline County in eastern Maryland...

* Until 700 PM EDT.

* At 614 PM EDT, a severe thunderstorm was located near Bridgeville,
  or 13 miles northeast of Hurlock, moving east at 45 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Georgetown, Milford, Harrington, Lewes, Milton, Bridgeville,
  Ellendale, Henlopen Acres, Smithville, Cape Henlopen State Park,
  Andrewsville, Greenwood, Houston, Dewey Beach, and Farmington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3869 7575 3889 7577 3899 7511 3870 7506
TIME...MOT...LOC 2214Z 261DEG 38KT 3875 7566 

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

$$

AKL

2 follow-up statements

448 
WWUS51 KPHI 192228
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
628 PM EDT Thu Jun 19 2025

MDC011-192238-
/O.CAN.KPHI.SV.W.0082.000000T0000Z-250619T2300Z/
Caroline MD-
628 PM EDT Thu Jun 19 2025

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CAROLINE COUNTY
IS CANCELLED...

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

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central and southern Delaware.

LAT...LON 3871 7556 3892 7562 3899 7511 3870 7506
TIME...MOT...LOC 2228Z 262DEG 47KT 3879 7541 

$$

DEC001-005-192300-
/O.CON.KPHI.SV.W.0082.000000T0000Z-250619T2300Z/
Sussex DE-Kent DE-
628 PM EDT Thu Jun 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHERN SUSSEX AND SOUTHEASTERN KENT COUNTIES...

At 628 PM EDT, a severe thunderstorm was located over Ellendale, or 7
miles north of Georgetown, 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...
Georgetown, Milford, Harrington, Lewes, Milton, Ellendale, Henlopen
Acres, Cape Henlopen State Park, Greenwood, Houston, Dewey Beach, and
Farmington.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3871 7556 3892 7562 3899 7511 3870 7506
TIME...MOT...LOC 2228Z 262DEG 47KT 3879 7541 

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

$$

AKL

314 
WWUS51 KPHI 192250
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
650 PM EDT Thu Jun 19 2025

DEC001-192259-
/O.CAN.KPHI.SV.W.0082.000000T0000Z-250619T2300Z/
Kent DE-
650 PM EDT Thu Jun 19 2025

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN KENT 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 900 PM EDT for
southern Delaware.

LAT...LON 3871 7536 3872 7536 3895 7525 3897 7525
      3899 7512 3898 7511 3870 7506
TIME...MOT...LOC 2249Z 247DEG 39KT 3916 7511 3906 7506 3868 7531 

$$

DEC005-192300-
/O.CON.KPHI.SV.W.0082.000000T0000Z-250619T2300Z/
Sussex DE-
650 PM EDT Thu Jun 19 2025

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR NORTHEASTERN SUSSEX COUNTY...

At 649 PM EDT, severe thunderstorms were located along a line
extending from 6 miles southeast of Fortesque to 8 miles northwest of
North Cape May to near Georgetown, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Lewes, Milton, Henlopen Acres, Cape Henlopen State Park, and Dewey
Beach.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3871 7536 3872 7536 3895 7525 3897 7525
      3899 7512 3898 7511 3870 7506
TIME...MOT...LOC 2249Z 247DEG 39KT 3916 7511 3906 7506 3868 7531 

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

$$

AKL

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 5:08 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Caroline, Kent, Queen Anne's	52 min
Jun 19, 5:22 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	38 min
Jun 19, 5:41 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Kent	49 min
Jun 19, 5:55 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's	39 min
Jun 19, 4:34 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	New Castle	41 min
Jun 19, 5:02 PM EDT	Tornado Warning Considerable damage threat	PHI	New Castle	15 min
Jun 19, 5:13 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	New Castle	47 min
Jun 19, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	New Castle	52 min
Jun 19, 6:55 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	50 min
Jun 19, 6:58 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	47 min
Jun 19, 7:48 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	27 min

Nearby

Severe Thunderstorm Warnings in Delaware, 2025 Severe Thunderstorm Warnings in Maryland, 2025 Every severe thunderstorm warning in 2025

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.