Alert archive / New Jersey / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 79, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2025, 5:41 PM EDT for New Castle County, Delaware; Cumberland County, Gloucester County, Salem County, New Jersey; Kent County, Maryland. It was in force for 49 min. 2 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, 5:41 PM EDT (21:41 UTC)
- Expired
- Jun 19, 2025, 6:30 PM EDT
- In force
- 49 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Hail
- 0.75 in
- Wind
- 70.0 mph
Counties New Castle County, DE, Kent County, MD, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 83 km from the middle of the area, began a volume at 21:42 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, 5:45 PM EDT | MARINE TSTM WIND 41 | 2 Nne Port Penn, DE | Port Penn Mesonet gusted to 36 kt. |
| Jun 19, 5:50 PM EDT | TSTM WND GST 61 | Lower Alloways Creek Tw, NJ | NJWxNet. |
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, 9.7 hours before the alert went out and 177 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.
056
WUUS51 KPHI 192141
SVRPHI
DEC003-MDC029-NJC011-015-033-192230-
/O.NEW.KPHI.SV.W.0079.250619T2141Z-250619T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
541 PM EDT Thu Jun 19 2025
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
New Castle County in northern Delaware...
Northeastern Kent County in northeastern Maryland...
Northern Cumberland County in southern New Jersey...
Salem County in southern New Jersey...
Gloucester County in southern New Jersey...
* Until 630 PM EDT.
* At 541 PM EDT, severe thunderstorms were located along a line
extending from Zion to Saint Georges to near Green Spring, moving
east at 55 mph.
HAZARD...70 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Wilmington, Vineland, Newark, Millville, Bridgeton, Middletown,
Glassboro, Pennsville, Pitman, Clayton, Carneys Point, Elsmere, New
Castle, Penns Grove, Salem, Woodstown, Alloway, Quinton,
Swedesboro, and Delaware City.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3938 7577 3969 7579 3981 7542 3980 7541
3984 7532 3970 7499 3941 7498 3934 7581
3938 7582
TIME...MOT...LOC 2141Z 254DEG 47KT 3967 7599 3956 7568 3934 7569
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
AKL2 follow-up statements
625
WWUS51 KPHI 192205
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
605 PM EDT Thu Jun 19 2025
MDC029-192214-
/O.CAN.KPHI.SV.W.0079.000000T0000Z-250619T2230Z/
Kent MD-
605 PM EDT Thu Jun 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN KENT COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northern Delaware...southern New Jersey...and southeastern
Pennsylvania.
LAT...LON 3981 7542 3980 7541 3984 7532 3970 7499
3941 7498 3937 7549 3959 7545 3976 7557
TIME...MOT...LOC 2204Z 254DEG 51KT 3976 7544 3964 7529 3938 7537
$$
DEC003-NJC011-015-033-192230-
/O.CON.KPHI.SV.W.0079.000000T0000Z-250619T2230Z/
New Castle DE-Cumberland NJ-Salem NJ-Gloucester NJ-
605 PM EDT Thu Jun 19 2025
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHEASTERN NEW CASTLE...NORTHERN CUMBERLAND...SALEM AND
GLOUCESTER COUNTIES...
At 604 PM EDT, severe thunderstorms were located along a line
extending from near Penns Grove to near Woodstown to Greenwich,
moving east at 60 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...
Wilmington, Vineland, Millville, Bridgeton, Glassboro, Pennsville,
Pitman, Clayton, Carneys Point, Penns Grove, Salem, Woodstown,
Alloway, Quinton, Swedesboro, Newfield, Elmer, Greenwich, Shiloh, and
Franklinville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3981 7542 3980 7541 3984 7532 3970 7499
3941 7498 3937 7549 3959 7545 3976 7557
TIME...MOT...LOC 2204Z 254DEG 51KT 3976 7544 3964 7529 3938 7537
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
AKL192
WWUS51 KPHI 192222
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
622 PM EDT Thu Jun 19 2025
DEC003-NJC011-015-033-192231-
/O.EXP.KPHI.SV.W.0079.000000T0000Z-250619T2230Z/
New Castle DE-Cumberland NJ-Salem NJ-Gloucester NJ-
622 PM EDT Thu Jun 19 2025
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEW CASTLE...
NORTHERN CUMBERLAND...SALEM AND GLOUCESTER COUNTIES WILL EXPIRE AT
630 PM EDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northern Delaware...southern New Jersey...and southeastern
Pennsylvania.
LAT...LON 3981 7542 3980 7541 3984 7532 3970 7499
3941 7498 3937 7549 3959 7545 3976 7557
TIME...MOT...LOC 2221Z 254DEG 47KT 3980 7524 3968 7509 3942 7517
$$
AKLThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 19, 4:34 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 41 min |
| 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, 5:55 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, 2:27 PM EDT | Small Craft Advisory | PHI | 16 hr | |
| Jun 19, 2:44 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset | 31 min |
| Jun 19, 3:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset | 46 min |
| Jun 19, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 29 min |
| Jun 19, 4:48 PM EDT | Special Marine Warning | PHI | 42 min | |
| Jun 19, 5:27 PM EDT | Special Marine Warning | PHI | 63 min | |
| Jun 19, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer | 50 min |
| Jun 19, 6:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more | 31 min |
| Jun 19, 6:34 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jun 19, 6:52 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jun 19, 7:02 PM EDT | Special Marine Warning | PHI | 43 min | |
| Jun 19, 7:06 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jun 19, 7:22 PM EDT | Special Marine Warning | PHI | 53 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2025Severe Thunderstorm Warnings in Delaware, 2025Severe Thunderstorm Warnings in Maryland, 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.