Alert archive / Delaware / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 145, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 4, 2026, 9:52 PM EDT for Sussex County, Delaware; Caroline County, Maryland. It was in force for 38 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 4, 2026, 9:52 PM EDT (01:52 UTC)
- Expired
- Jul 4, 2026, 10:30 PM EDT
- In force
- 38 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties 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 01:51 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 4, 10:20 PM EDT | TSTM WND DMG | Selbyville, DE | Report of wires down at the intersection of Cypress and Cemetery Roads. 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 |
|---|---|---|---|
| Jul 4, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 1.9 hours before the alert went out and 338 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
- 1105 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 1723 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 100 m²/s²
- 0-3 km storm-relative helicity
- 144 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 3.7
The text
As transmitted.
328
WUUS51 KPHI 050152
SVRPHI
DEC005-MDC011-050230-
/O.NEW.KPHI.SV.W.0145.260705T0152Z-260705T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
952 PM EDT Sat Jul 4 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Sussex County in southern Delaware...
Southeastern Caroline County in eastern Maryland...
* Until 1030 PM EDT.
* At 952 PM EDT, a severe thunderstorm was located near Sharptown, or
near Hurlock, moving northeast at 65 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, Lewes, Federalsburg,
Milton, Selbyville, Bridgeville, Delmar, Dagsboro, Preston,
Millville, Ellendale, Henlopen Acres, Gumboro, Smithville, Cape
Henlopen State Park, Agner, and Sycamore.
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.
&&
LAT...LON 3846 7505 3845 7505 3846 7569 3865 7571
3869 7577 3868 7580 3870 7580 3871 7584
3870 7590 3868 7593 3874 7595 3894 7507
3845 7499
TIME...MOT...LOC 0152Z 244DEG 55KT 3857 7577
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MPS1 follow-up statement
741
WWUS51 KPHI 050225
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1025 PM EDT Sat Jul 4 2026
DEC005-MDC011-050235-
/O.EXP.KPHI.SV.W.0145.000000T0000Z-260705T0230Z/
Sussex DE-Caroline MD-
1025 PM EDT Sat Jul 4 2026
...THE SEVERE THUNDERSTORM WARNING FOR SUSSEX AND SOUTHEASTERN
CAROLINE COUNTIES WILL EXPIRE AT 1030 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southern Delaware...and eastern Maryland.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3846 7505 3845 7505 3846 7569 3865 7571
3869 7577 3868 7580 3870 7580 3871 7584
3870 7590 3868 7593 3874 7595 3894 7507
3845 7499
TIME...MOT...LOC 0225Z 244DEG 55KT 3876 7527
$$
MPSThe 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, 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 |
| Jul 5, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 41 min |
| Jul 5, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's, Talbot | 47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.