Alert archive / Maryland / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 10, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 31, 2025, 9:48 PM EDT for Caroline County, Talbot County, Maryland; Kent County, Sussex County, Delaware. It was in force for 42 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
- Mar 31, 2025, 9:48 PM EDT (01:48 UTC)
- Expired
- Mar 31, 2025, 10:30 PM EDT
- In force
- 42 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, Talbot County, MD
The radar
The Dover AFB radar (KDOX), 26 km from the middle of the area, began a volume at 01:52 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, 1.8 hours before the alert went out and 80 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
- 362 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 709 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 185 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted.
449
WUUS51 KPHI 010148
SVRPHI
DEC001-005-MDC011-041-010230-
/O.NEW.KPHI.SV.W.0010.250401T0148Z-250401T0230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
948 PM EDT Mon Mar 31 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Sussex County in southern Delaware...
Southern Kent County in central Delaware...
Eastern Talbot County in eastern Maryland...
Caroline County in eastern Maryland...
* Until 1030 PM EDT.
* At 947 PM EDT, severe thunderstorms were located along a line
extending from near Cordova to near Deal Island, moving east at 45
mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Dagsboro, Preston, Blades, Smithville, Gumboro, Harrington, Long
Neck, Denton, South Bethany, Ellendale, Cape Henlopen State Park,
Federalsburg, Dewey Beach, Agner, Choptank, Ocean View,
Bridgeville, Delmar, Bethel, and Windyhill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3846 7505 3845 7505 3846 7569 3864 7571
3869 7577 3868 7580 3870 7580 3871 7584
3868 7593 3863 7598 3860 7599 3858 7604
3890 7604 3906 7499 3845 7499
TIME...MOT...LOC 0147Z 262DEG 41KT 3884 7598 3821 7599
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCM1 follow-up statement
278
WWUS51 KPHI 010213
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1013 PM EDT Mon Mar 31 2025
MDC011-041-010223-
/O.CAN.KPHI.SV.W.0010.000000T0000Z-250401T0230Z/
Talbot MD-Caroline MD-
1013 PM EDT Mon Mar 31 2025
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN TALBOT AND CAROLINE
COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3846 7569 3895 7573 3906 7499 3845 7499
3846 7504 3845 7505
TIME...MOT...LOC 0213Z 262DEG 41KT 3888 7562 3825 7563
$$
DEC001-005-010230-
/O.CON.KPHI.SV.W.0010.000000T0000Z-250401T0230Z/
Sussex DE-Kent DE-
1013 PM EDT Mon Mar 31 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT
FOR SUSSEX AND SOUTHERN KENT COUNTIES...
At 1013 PM EDT, severe thunderstorms were located along a line
extending from Andrewsville to near University Of Maryland Eastern
Shore, moving east at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Dagsboro, Blades, Gumboro, Harrington, Long Neck, South Bethany,
Ellendale, Cape Henlopen State Park, Dewey Beach, Ocean View,
Bridgeville, Delmar, Bethel, Millville, Georgetown, Millsboro,
Andrewsville, Greenwood, Milford, and Laurel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3846 7569 3895 7573 3906 7499 3845 7499
3846 7504 3845 7505
TIME...MOT...LOC 0213Z 262DEG 41KT 3888 7562 3825 7563
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RCMThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 31, 8:56 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Kent, Queen Anne's | 49 min |
| Mar 31, 9:13 PM EDT | Severe Thunderstorm Warning | PHI | Caroline, Queen Anne's, Talbot | 47 min |
| Mar 31, 10:03 PM EDT | Tornado Warning | PHI | Caroline | 27 min |
| Mar 31, 10:22 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 38 min |
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.