Alert archive / Delaware / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 365, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 2, 2026, 2:38 PM EDT for Caroline County, Maryland; Kent County, Sussex County, Delaware. It was in force for 47 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
- Sep 2, 2026, 2:38 PM EDT (18:38 UTC)
- Expired
- Sep 2, 2026, 3:25 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, Sussex County, DE, Caroline County, MD
The radar
The Dover AFB radar (KDOX), 24 km from the middle of the area, began a volume at 18:39 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 |
|---|---|---|---|
| Sep 2, 11:46 AM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 6.6 hours before the alert went out and 156 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.
- Mixed-layer CAPE
- 394 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 1089 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 35 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
The text
As transmitted.
440
WUUS51 KPHI 021838
SVRPHI
DEC001-005-MDC011-021945-
/O.NEW.KPHI.SV.W.0365.260902T1838Z-260902T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
238 PM EDT Wed Sep 2 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Sussex County in southern Delaware...
Southwestern Kent County in central Delaware...
Southeastern Caroline County in eastern Maryland...
* Until 345 PM EDT.
* At 238 PM EDT, severe thunderstorms were located along a line
extending from near Andrewsville to near Federalsburg to 8 miles
southeast of Taylors Island, moving south at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Georgetown, Seaford, Millsboro, Laurel, Harrington, Federalsburg,
Selbyville, Bridgeville, Delmar, Dagsboro, Ellendale, Gumboro,
Smithville, Sycamore, Andrewsville, Blades, Greenwood, Frankford,
Bethel, and Farmington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3846 7569 3864 7571 3869 7577 3868 7580
3901 7573 3899 7558 3845 7510
TIME...MOT...LOC 1838Z 338DEG 33KT 3890 7570 3866 7580 3840 7618
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL3 follow-up statements
860
WWUS51 KPHI 021900
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
300 PM EDT Wed Sep 2 2026
DEC001-MDC011-021910-
/O.CAN.KPHI.SV.W.0365.000000T0000Z-260902T1945Z/
Kent DE-Caroline MD-
300 PM EDT Wed Sep 2 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN KENT AND
SOUTHEASTERN CAROLINE COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3846 7569 3875 7571 3883 7564 3884 7545
3845 7510
TIME...MOT...LOC 1900Z 338DEG 33KT 3873 7561 3849 7571 3823 7609
$$
DEC005-021945-
/O.CON.KPHI.SV.W.0365.000000T0000Z-260902T1945Z/
Sussex DE-
300 PM EDT Wed Sep 2 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SUSSEX COUNTY...
At 300 PM EDT, severe thunderstorms were located along a line
extending from Bridgeville to near Sharptown to 9 miles northwest of
Deal Island, moving south at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Georgetown, Seaford, Millsboro, Laurel, Selbyville, Bridgeville,
Delmar, Dagsboro, Ellendale, Gumboro, Sycamore, Blades, Greenwood,
Frankford, and Bethel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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 3846 7569 3875 7571 3883 7564 3884 7545
3845 7510
TIME...MOT...LOC 1900Z 338DEG 33KT 3873 7561 3849 7571 3823 7609
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL525
WWUS51 KPHI 021916
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
316 PM EDT Wed Sep 2 2026
DEC005-021945-
/O.CON.KPHI.SV.W.0365.000000T0000Z-260902T1945Z/
Sussex DE-
316 PM EDT Wed Sep 2 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR SOUTHWESTERN SUSSEX COUNTY...
At 316 PM EDT, severe thunderstorms were located along a line
extending from near Sycamore to near Salisbury University to near
Deal Island, moving south at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Seaford, Laurel, Delmar, Sycamore, Gumboro, Blades, and Bethel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3846 7569 3870 7560 3870 7549 3845 7526
TIME...MOT...LOC 1916Z 338DEG 33KT 3860 7555 3836 7565 3810 7603
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MJL018 WWUS51 KPHI 021925 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 325 PM EDT Wed Sep 2 2026 DEC005-021934- /O.CAN.KPHI.SV.W.0365.000000T0000Z-260902T1945Z/ Sussex DE- 325 PM EDT Wed Sep 2 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SUSSEX COUNTY IS CANCELLED... The storms which prompted the warning have weakened below severe limits, and no longer pose an immediate threat to life or property. Therefore, the warning has been cancelled. However heavy rain is still possible with these thunderstorms. 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 3846 7569 3870 7560 3870 7549 3845 7526 TIME...MOT...LOC 1922Z 338DEG 33KT 3854 7552 3830 7562 3804 7600 $$ MJL
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 9:40 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 65 min |
| Sep 2, 3:53 AM EDT | Heat Advisory | PHI | Caroline, Kent, Queen Anne's, Talbot | 40 hr |
| Sep 2, 1:03 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Queen Anne's | 57 min |
| Sep 2, 1:43 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 47 min |
| Sep 2, 2:05 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 40 min |
| Sep 1, 8:17 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 58 min |
| Sep 1, 8:44 PM EDT | Flash Flood Warning | PHI | New Castle | 3 hr |
| Sep 1, 8:46 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 59 min |
| Sep 2, 1:35 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 40 min |
Nearby
Severe Thunderstorm Warnings in Delaware, 2026Severe Thunderstorm Warnings in Maryland, 2026Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.