Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 91, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 22, 2026, 5:18 PM EDT for Bucks County, Montgomery County, Pennsylvania; Hunterdon County, Mercer County, New Jersey. 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
- Jun 22, 2026, 5:18 PM EDT (21:18 UTC)
- Expired
- Jun 22, 2026, 6:00 PM EDT
- In force
- 42 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Possible
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Mercer County, NJ, Bucks County, PA, Montgomery County, PA
The radar
The Philadelphia radar (KDIX), 71 km from the middle of the area, began a volume at 21:22 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jun 22, 2:08 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.3 hours before the alert went out and 202 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
- 1598 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
910
WUUS51 KPHI 222118
SVRPHI
NJC019-021-PAC017-091-222200-
/O.NEW.KPHI.SV.W.0091.260622T2118Z-260622T2200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
518 PM EDT Mon Jun 22 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...
East central Montgomery County in southeastern Pennsylvania...
Central Bucks County in southeastern Pennsylvania...
* Until 600 PM EDT.
* At 518 PM EDT, a severe thunderstorm was located over Chalfont, or
20 miles north of Philadelphia, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Ewing, Lansdale, Perkasie, Doylestown, Souderton, Chalfont,
Hatfield, New Hope, Yardley, Newtown, Dublin, Ivyland, Stockton,
Washington Crossing, Fricks, Woodside, Richboro, Gardenville,
Horsham, and Sellersville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4022 7531 4037 7531 4042 7486 4018 7483
TIME...MOT...LOC 2118Z 266DEG 24KT 4030 7522
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper3 follow-up statements
396
WWUS51 KPHI 222132
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
532 PM EDT Mon Jun 22 2026
PAC091-222141-
/O.CAN.KPHI.SV.W.0091.000000T0000Z-260622T2200Z/
Montgomery PA-
532 PM EDT Mon Jun 22 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MONTGOMERY COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central and northwestern New Jersey...and southeastern Pennsylvania.
LAT...LON 4018 7483 4021 7515 4025 7520 4038 7518
4042 7486
TIME...MOT...LOC 2131Z 266DEG 24KT 4031 7510
$$
NJC019-021-PAC017-222200-
/O.CON.KPHI.SV.W.0091.000000T0000Z-260622T2200Z/
Hunterdon NJ-Mercer NJ-Bucks PA-
532 PM EDT Mon Jun 22 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTH CENTRAL HUNTERDON...NORTHWESTERN MERCER AND CENTRAL BUCKS
COUNTIES...
At 531 PM EDT, a severe thunderstorm was located over Doylestown, or
18 miles west of Trenton, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Ewing, Doylestown, Chalfont, New Hope, Yardley, Newtown, Ivyland,
Stockton, Richboro, Washington Crossing, Gardenville, Woodside,
Lambertville, New Britain, Churchville, Woodbourne, Village Shires,
Newtown Grant, and Fairless Hills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4018 7483 4021 7515 4025 7520 4038 7518
4042 7486
TIME...MOT...LOC 2131Z 266DEG 24KT 4031 7510
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper684
WWUS51 KPHI 222144
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
544 PM EDT Mon Jun 22 2026
NJC019-021-PAC017-222200-
/O.CON.KPHI.SV.W.0091.000000T0000Z-260622T2200Z/
Hunterdon NJ-Mercer NJ-Bucks PA-
544 PM EDT Mon Jun 22 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR SOUTH CENTRAL HUNTERDON...NORTHWESTERN MERCER AND EAST CENTRAL
BUCKS COUNTIES...
At 544 PM EDT, a severe thunderstorm was located near New Hope, or 13
miles northwest of Trenton, moving east at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Ewing, New Hope, Yardley, Newtown, Ivyland, Stockton, Richboro,
Washington Crossing, Woodside, Lambertville, Churchville, Woodbourne,
Village Shires, Newtown Grant, and Fairless Hills.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4020 7508 4039 7507 4042 7486 4018 7483
TIME...MOT...LOC 2144Z 266DEG 24KT 4032 7498
TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper684 WWUS51 KPHI 222158 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 558 PM EDT Mon Jun 22 2026 NJC019-021-PAC017-222206- /O.EXP.KPHI.SV.W.0091.000000T0000Z-260622T2200Z/ Hunterdon NJ-Mercer NJ-Bucks PA- 558 PM EDT Mon Jun 22 2026 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL HUNTERDON... NORTHWESTERN MERCER AND EAST CENTRAL BUCKS COUNTIES WILL EXPIRE AT 600 PM EDT... The storm which prompted the warning has moved out of the area. Therefore, the warning will be allowed to expire. A Severe Thunderstorm Watch remains in effect until 900 PM EDT for central and northwestern New Jersey...and southeastern Pennsylvania. Remember, a Severe Thunderstorm Warning still remains in effect for portions of Bucks County in Pennsylvania and Mercer County in New Jersey. LAT...LON 4020 7508 4039 7507 4042 7486 4018 7483 TIME...MOT...LOC 2156Z 266DEG 24KT 4032 7489 $$ Cooper
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 2:13 AM EDT | Flood Watch | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 25 hr |
| Jun 22, 2:20 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 40 min |
| Jun 22, 2:55 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 50 min |
| Jun 22, 4:15 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester, Delaware, Montgomery | 45 min |
| Jun 22, 4:35 PM EDT | Tornado Warning | PHI | Berks, Chester, Delaware, Montgomery | 25 min |
| Jun 22, 4:56 PM EDT | Tornado Warning | PHI | Chester, Delaware, Montgomery | 34 min |
| Jun 22, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 53 min |
| Jun 22, 5:53 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 52 min |
| Jun 22, 6:02 PM EDT | Flash Flood Warning | PHI | Delaware, Montgomery, Philadelphia | 4 hr |
| Jun 22, 6:02 PM EDT | Severe Thunderstorm Warning | PHI | Delaware, Philadelphia | 43 min |
| Jun 22, 6:09 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 51 min |
| Jun 22, 6:26 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery, Philadelphia | 4 hr |
| Jun 22, 6:36 PM EDT | Flash Flood Warning | PHI | Philadelphia | 3 hr |
| Jun 22, 6:48 PM EDT | Flash Flood Warning | PHI | Bucks | 3 hr |
| Jun 22, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 22 min |
| Jun 22, 3:26 PM EDT | Special Marine Warning | PHI | 84 min | |
| Jun 22, 6:21 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 39 min |
| Jun 22, 6:36 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Ocean | 39 min |
| Jun 22, 6:59 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jun 22, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 46 min |
| Jun 22, 7:06 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 3 hr |
| Jun 22, 7:30 PM EDT | Special Marine Warning | PHI | 60 min | |
| Jun 22, 7:40 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Ocean | 50 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.