Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 84, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 14, 2026, 10:44 PM EDT for Hunterdon County, Mercer County, New Jersey; 5 counties in Pennsylvania. It was in force for 46 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 14, 2026, 10:44 PM EDT (02:44 UTC)
- Expired
- Jun 14, 2026, 11:30 PM EDT
- In force
- 46 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Mercer County, NJ, Bucks County, PA, Chester County, PA, Delaware County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 02:45 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 14, 10:54 PM EDT | TSTM WND DMG | Doylestown, PA | Trees down around Doylestown. Time estimated from radar. |
| Jun 14, 11:06 PM EDT | TSTM WND DMG | Washington Crossing, PA | Downed tree on General Mercer Road, resulting in a road closure. 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 14, 7:06 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 00:00Z, 2.7 hours before the alert went out and 218 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1582 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 49 m²/s²
- 0-3 km storm-relative helicity
- 91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
427
WUUS51 KPHI 150244
SVRPHI
NJC019-021-PAC017-029-045-091-101-150330-
/O.NEW.KPHI.SV.W.0084.260615T0244Z-260615T0330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1044 PM EDT Sun Jun 14 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
South central Hunterdon County in northwestern New Jersey...
Northwestern Mercer County in central New Jersey...
Southeastern Montgomery County in southeastern Pennsylvania...
Central Bucks County in southeastern Pennsylvania...
East central Chester County in southeastern Pennsylvania...
Northwestern Philadelphia County in southeastern Pennsylvania...
Central Delaware County in southeastern Pennsylvania...
* Until 1130 PM EDT.
* At 1043 PM EDT, a severe thunderstorm was located over Radnor
Township, or 11 miles northeast of West Chester, moving northeast
at 50 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Philadelphia, Norristown, Lansdale, West Norriton, East Norriton,
Doylestown, Byram, Conshohocken, Hatboro, Ambler, Jenkintown,
Narberth, Chalfont, Pennington, New Hope, Newtown, Abington, Bryn
Athyn, Ivyland, and Stockton.
This includes the following highways...
Pennsylvania Turnpike between mile markers 321 and 347.
Northeast Extension between mile markers 21 and 28.
Interstate 76 in Pennsylvania between mile markers 327 and 338.
Interstate 476 in Pennsylvania between mile markers 4 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3988 7542 4001 7559 4051 7502 4033 7479
TIME...MOT...LOC 0243Z 225DEG 45KT 4003 7541
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Guzzo1 follow-up statement
688
WWUS51 KPHI 150301
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
1101 PM EDT Sun Jun 14 2026
NJC019-021-PAC017-029-045-091-101-150330-
/O.CON.KPHI.SV.W.0084.000000T0000Z-260615T0330Z/
Hunterdon NJ-Mercer NJ-Montgomery PA-Bucks PA-Chester PA-
Philadelphia PA-Delaware PA-
1101 PM EDT Sun Jun 14 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM EDT
FOR SOUTH CENTRAL HUNTERDON...NORTHWESTERN MERCER...SOUTHEASTERN
MONTGOMERY...CENTRAL BUCKS...EAST CENTRAL CHESTER...NORTHWESTERN
PHILADELPHIA AND NORTHEASTERN DELAWARE COUNTIES...
At 1101 PM EDT, a severe thunderstorm was located over Plymouth
Meeting, or 10 miles northwest of Philadelphia, moving northeast at
40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Norristown, Lansdale, West Norriton, East Norriton,
Doylestown, Byram, Conshohocken, Hatboro, Ambler, Jenkintown,
Narberth, Chalfont, Pennington, New Hope, Newtown, Abington, Bryn
Athyn, Ivyland, and Stockton.
This includes the following highways...
Pennsylvania Turnpike between mile markers 324 and 347.
Northeast Extension between mile markers 21 and 28.
Interstate 76 in Pennsylvania between mile markers 327 and 338.
Interstate 476 in Pennsylvania between mile markers 12 and 19.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3997 7529 4010 7549 4051 7502 4033 7479
TIME...MOT...LOC 0301Z 235DEG 33KT 4012 7527
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
GuzzoThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 14, 9:53 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jun 14, 9:54 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 51 min |
| Jun 14, 10:04 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jun 14, 10:21 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 39 min |
| Jun 14, 10:26 PM EDT | Flash Flood Warning | PHI | Camden | 3 hr |
| Jun 14, 10:51 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Mercer | 3 hr |
| Jun 14, 10:58 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth | 47 min |
| Jun 14, 11:03 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester, Salem | 2 hr |
| Jun 14, 11:16 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 29 min |
| Jun 14, 11:42 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset | 117 min |
| Jun 15, 3:10 AM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more | 23 hr |
| Jun 14, 8:16 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 44 min |
| Jun 14, 9:06 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 54 min |
| Jun 14, 9:50 PM EDT | Flash Flood Warning | PHI | Chester | 3 hr |
| Jun 14, 10:15 PM EDT | Flash Flood Warning | PHI | Chester, Delaware | 3 hr |
| Jun 14, 10:38 PM EDT | Flash Flood Warning | PHI | Delaware | 3 hr |
| Jun 15, 1:37 AM EDT | Areal Flood Warning | PHI | Delaware | 4 hr |
| Jun 15, 2:12 AM EDT | River Flood Warning | PHI | Delaware | 2 hr |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2026Severe Thunderstorm Warnings in New Jersey, 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.