Alert archive / Maryland / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 183, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 19, 2025, 9:58 PM EDT for Sussex County, Delaware; Caroline County, Talbot County, Maryland. 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
- Jul 19, 2025, 9:58 PM EDT (01:58 UTC)
- Expired
- Jul 19, 2025, 10:45 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 Sussex County, DE, Caroline County, MD, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 43 km from the middle of the area, began a volume at 01:59 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 nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 2.0 hours before the alert went out and 86 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
- 1259 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 806 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 30 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
782
WUUS51 KPHI 200158
SVRPHI
DEC005-MDC011-041-200245-
/O.NEW.KPHI.SV.W.0183.250720T0158Z-250720T0245Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
958 PM EDT Sat Jul 19 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southwestern Sussex County in southern Delaware...
Southeastern Talbot County in eastern Maryland...
Southern Caroline County in eastern Maryland...
* Until 1045 PM EDT.
* At 958 PM EDT, severe thunderstorms were located along a line
extending from University Of Maryland Center For Environmental
Studies to near Vienna to 6 miles southwest of Hebron, 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...
Easton, Seaford, Laurel, Federalsburg, Delmar, Trappe, Preston,
Tanyard, Harmony, Agner, Choptank, Hambleton, Windyhill, Blades,
and Bethel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3846 7569 3864 7571 3869 7577 3868 7580
3871 7584 3868 7593 3860 7599 3857 7603
3859 7606 3860 7606 3863 7608 3862 7612
3863 7612 3882 7600 3874 7563 3852 7543
3845 7555
TIME...MOT...LOC 0158Z 222DEG 23KT 3856 7614 3849 7591 3834 7576
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
AKL1 follow-up statement
194
WWUS51 KPHI 200237
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1037 PM EDT Sat Jul 19 2025
DEC005-MDC011-041-200247-
/O.EXP.KPHI.SV.W.0183.000000T0000Z-250720T0245Z/
Sussex DE-Talbot MD-Caroline MD-
1037 PM EDT Sat Jul 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SUSSEX...
SOUTHEASTERN TALBOT AND SOUTHERN CAROLINE COUNTIES WILL EXPIRE AT
1045 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 3846 7569 3864 7571 3869 7577 3868 7580
3871 7584 3868 7593 3860 7599 3857 7603
3859 7606 3860 7606 3863 7608 3862 7612
3863 7612 3882 7600 3874 7563 3852 7543
3845 7555
TIME...MOT...LOC 0237Z 222DEG 23KT 3873 7595 3866 7572 3851 7557
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 10:25 PM EDT | Flash Flood Warning | PHI | Sussex | 3 hr |
Nearby
Severe Thunderstorm Warnings in Maryland, 2025Severe Thunderstorm Warnings in Delaware, 2025Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.