Alert archive / Delaware / Tornado Warnings in 2025

Tornado Warning 26, NWS Philadelphia/Mount Holly

July 9, 2025Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this tornado warning at Jul 9, 2025, 9:13 PM EDT for Sussex County, Delaware. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 9, 2025, 9:13 PM EDT (01:13 UTC)
Expired: Jul 9, 2025, 9:45 PM EDT
In force: 32 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Sussex County, DE

The radar

The Dover AFB radar (KDOX), 17 km from the middle of the area, began a volume at 01:16 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.

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 9, 5:31 PM EDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 1.2 hours before the alert went out and 88 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: 2291 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 843 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 36 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

053 
WFUS51 KPHI 100113
TORPHI
DEC005-100145-
/O.NEW.KPHI.TO.W.0026.250710T0113Z-250710T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
913 PM EDT Wed Jul 9 2025

The National Weather Service in Mount Holly NJ has issued a

* Tornado Warning for...
  East central Sussex County in southern Delaware...

* Until 945 PM EDT.

* At 912 PM EDT, a severe thunderstorm capable of producing a tornado
  was located over Georgetown, moving northeast at 35 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Georgetown, Lewes, and Milton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 3864 7542 3869 7546 3884 7523 3878 7513
      3870 7514
TIME...MOT...LOC 0112Z 244DEG 29KT 3868 7539 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

Staarmann

4 follow-up statements

845 
WWUS51 KPHI 100120
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
920 PM EDT Wed Jul 9 2025

DEC005-100145-
/O.CON.KPHI.TO.W.0026.000000T0000Z-250710T0145Z/
Sussex DE-
920 PM EDT Wed Jul 9 2025

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR EAST
CENTRAL SUSSEX COUNTY...

At 920 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Georgetown, moving east at 35 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Lewes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 3866 7535 3872 7537 3883 7521 3878 7513
      3870 7514
TIME...MOT...LOC 0120Z 250DEG 30KT 3870 7532 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Staarmann

051 
WWUS51 KPHI 100130
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
930 PM EDT Wed Jul 9 2025

DEC005-100145-
/O.CON.KPHI.TO.W.0026.000000T0000Z-250710T0145Z/
Sussex DE-
930 PM EDT Wed Jul 9 2025

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR EAST
CENTRAL SUSSEX COUNTY...

At 930 PM EDT, a severe thunderstorm capable of producing a tornado
was located near Lewes, or 9 miles east of Georgetown, moving
northeast at 35 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Lewes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 3877 7530 3883 7521 3880 7516 3878 7513
      3875 7513 3871 7514 3870 7525
TIME...MOT...LOC 0130Z 244DEG 29KT 3874 7523 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Staarmann

070 
WWUS51 KPHI 100137
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
937 PM EDT Wed Jul 9 2025

DEC005-100145-
/O.CON.KPHI.TO.W.0026.000000T0000Z-250710T0145Z/
Sussex DE-
937 PM EDT Wed Jul 9 2025

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 945 PM EDT FOR EAST
CENTRAL SUSSEX COUNTY...

At 937 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Lewes, or 13 miles northeast of Georgetown, moving
northeast at 35 mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Lewes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 3881 7523 3883 7521 3880 7516 3878 7513
      3875 7513 3871 7514 3871 7517
TIME...MOT...LOC 0137Z 237DEG 31KT 3879 7518 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...0.00 IN

$$

Staarmann

108 
WWUS51 KPHI 100149
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
949 PM EDT Wed Jul 9 2025

DEC005-100158-
/O.EXP.KPHI.TO.W.0026.000000T0000Z-250710T0145Z/
Sussex DE-
949 PM EDT Wed Jul 9 2025

...THE TORNADO WARNING FOR EAST CENTRAL SUSSEX COUNTY HAS EXPIRED...

The storm which prompted the warning has moved offshore over 
Delaware Bay. Therefore, the warning has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until midnight EDT for
southern 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 3881 7523 3883 7521 3880 7516 3878 7513
      3875 7513 3871 7514 3871 7517
TIME...MOT...LOC 0148Z 244DEG 29KT 3883 7509 

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:00 PM EDT	Flash Flood Warning Considerable damage threat	PHI	New Castle	4 hr
Jul 9, 8:32 PM EDT	Flash Flood Warning Considerable damage threat	PHI	New Castle	4 hr
Jul 9, 8:46 PM EDT	Tornado Warning	PHI	New Castle	29 min
Jul 9, 8:51 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	39 min
Jul 9, 9:30 PM EDT	River Flood Warning	PHI	New Castle	7 hr
Jul 9, 11:27 PM EDT	River Flood Warning	PHI	New Castle	8 hr
Jul 9, 11:44 PM EDT	Areal Flood Warning	PHI	New Castle	4 hr
Jul 10, 4:15 PM EDT	Flash Flood Warning	PHI	Kent	117 min
Jul 10, 7:33 PM EDT	Flash Flood Warning	PHI	Sussex	104 min

Nearby

Tornado Warnings in Delaware, 2025 Every tornado warning in 2025 Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.