Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 72, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2025, 4:34 PM EDT for New Castle County, Delaware; Chester County, Delaware County, Pennsylvania. It was in force for 41 min. 15 reports 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
- Jun 19, 2025, 4:34 PM EDT (20:34 UTC)
- Expired
- Jun 19, 2025, 5:15 PM EDT
- In force
- 41 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 1.0 in
- Wind
- 70.0 mph
Counties New Castle County, DE, Chester County, PA, Delaware County, PA
The radar
The Dover AFB radar (KDOX), 119 km from the middle of the area, began a volume at 20:36 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 |
|---|---|---|---|
| Jun 19, 4:55 PM EDT | TSTM WND GST 56 | Coatesville, PA | |
| Jun 19, 4:57 PM EDT | TSTM WND DMG | East Marlborough Twp, PA | Tree into house. Time estimated from radar. |
| Jun 19, 5:04 PM EDT | TSTM WND DMG | 2 Nw Talleyville, DE | *** 1 INJ *** Tree fell onto a car resulting in an injury to the occupant. Time estimated from radar. |
| Jun 19, 5:05 PM EDT | TSTM WND DMG | 1 Nw Birmingham Twp, PA | Numerous trees down. Time estimated from radar. |
| Jun 19, 5:07 PM EDT | TSTM WND DMG | 1 Ne Talleyville, DE | A tree into a house. Time estimated from radar. |
| Jun 19, 5:07 PM EDT | TSTM WND DMG | 1 Nw Concordville, PA | Significant tree damage occurred in the vicinity of Natalie Road and Carter Road near Thornton. Spotter provided photos showing numerous snapped and uprooted trees and crop damage in this area. The damage was most significant within a distinct narrow corridor, |
| Jun 19, 5:07 PM EDT | TSTM WND DMG | Westtown, PA | Multiple trees down. Time estimated from radar. |
| Jun 19, 5:07 PM EDT | MARINE TSTM WIND 49 | 1 Ssw New Castle, DE | ILG ASOS gusted to 43 kt. |
| Jun 19, 5:08 PM EDT | TSTM WND DMG | 1 Ne Talleyville, DE | Tree fell through the roof of a home on Emma Drive. No injuries reported. Time estimated from radar. |
| Jun 19, 5:08 PM EDT | TSTM WND GST 50 | Wilmington, DE | |
| Jun 19, 5:09 PM EDT | TSTM WND DMG | Westtown, PA | A tree fell onto a house. Time estimated from radar. |
| Jun 19, 5:09 PM EDT | TSTM WND DMG | Westtown, PA | Route 202 southbound vicinity of Skiles Blvd is completely blocked due to trees and wires down. Time estimated from radar. |
| Jun 19, 5:10 PM EDT | TSTM WND DMG | Concord Twp, PA | Numerout limbs downed onto roads. Time estimated. |
| Jun 19, 5:10 PM EDT | TSTM WND DMG | East Goshen Twp., PA | Several large tree limbs downed with damage ; time est. |
| Jun 19, 5:15 PM EDT | TSTM WND DMG | 1 Nw Perth, DE | Trees into house. 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 |
|---|---|---|---|
| Jun 19, 1:46 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Washington/Dulle, VA (KIAD), launched 12:00Z, 8.6 hours before the alert went out and 162 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
- 428 J/kg
- Mixed-layer CIN
- -131 J/kg
- Mixed-layer LCL
- 1226 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 21 m²/s²
- 0-3 km storm-relative helicity
- 85 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
351
WUUS51 KPHI 192034
SVRPHI
DEC003-PAC029-045-192115-
/O.NEW.KPHI.SV.W.0072.250619T2034Z-250619T2115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
434 PM EDT Thu Jun 19 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern New Castle County in northern Delaware...
Chester County in southeastern Pennsylvania...
Southwestern Delaware County in southeastern Pennsylvania...
* Until 515 PM EDT.
* At 433 PM EDT, a severe thunderstorm was located over Rock Springs,
or 13 miles north of Havre De Grace, moving east at 50 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
* Locations impacted include...
Wilmington, Newark, West Chester, Coatesville, Westtown,
Downingtown, Elsmere, Kennett Square, New Castle, Oxford,
Parkesburg, West Grove, Newport, Homeville, Glen Roy, Cochranville,
Stanton, Cheyney, North Star, and Glasgow.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.
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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3976 7606 3981 7603 3983 7604 3983 7602
3987 7601 3987 7599 3995 7599 4004 7593
4008 7593 4012 7558 3985 7549 3959 7558
3957 7578 3972 7579 3972 7613
TIME...MOT...LOC 2033Z 254DEG 42KT 3974 7616
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
MPS1 follow-up statement
943
WWUS51 KPHI 192057
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
457 PM EDT Thu Jun 19 2025
DEC003-PAC029-045-192115-
/O.CON.KPHI.SV.W.0072.000000T0000Z-250619T2115Z/
New Castle DE-Chester PA-Delaware PA-
457 PM EDT Thu Jun 19 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHWESTERN NEW CASTLE...CENTRAL CHESTER AND SOUTHWESTERN
DELAWARE COUNTIES...
At 456 PM EDT, a severe thunderstorm was located near West Grove, or
11 miles southwest of West Chester, moving east at 45 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Wilmington, Newark, West Chester, Coatesville, Westtown, Downingtown,
Elsmere, Kennett Square, New Castle, Parkesburg, West Grove, Newport,
Cochranville, Stanton, Cheyney, North Star, Glasgow, Bear,
Talleyville, and Wilmington Manor.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Prepare immediately for large hail and damaging winds. People outside
should seek shelter inside a well-built structure and away from
windows.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4005 7593 4008 7592 4012 7558 3984 7549
3959 7558 3957 7578 3972 7579 3972 7587
4001 7596
TIME...MOT...LOC 2056Z 248DEG 42KT 3986 7579
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 5:02 PM EDT | Tornado Warning | PHI | New Castle | 15 min |
| Jun 19, 5:08 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 52 min |
| Jun 19, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 47 min |
| Jun 19, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 38 min |
| Jun 19, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 52 min |
| Jun 19, 5:41 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 49 min |
| Jun 19, 5:55 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 39 min |
| Jun 19, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Kent, Sussex | 46 min |
| Jun 19, 6:55 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 50 min |
| Jun 19, 6:58 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 47 min |
| Jun 19, 7:48 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 27 min |
| Jun 19, 12:06 AM EDT | Areal Flood Warning | PHI | Berks | 2 hr |
| Jun 19, 5:31 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery | 44 min |
| Jun 19, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 50 min |
| Jun 19, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 31 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.