Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2024
Severe Thunderstorm Warning 12, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 23, 2024, 5:53 AM EDT for Bucks County, Montgomery County, Philadelphia County, Pennsylvania; Burlington County, New Jersey. It was in force for 24 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
- May 23, 2024, 5:53 AM EDT (09:53 UTC)
- Expired
- May 23, 2024, 6:17 AM EDT
- In force
- 24 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Bucks County, PA, Montgomery County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 09:56 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
Brookhaven, NY (KOKX), launched 00:00Z, 9.9 hours before the alert went out and 198 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
- 1230 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 95 m²/s²
- 0-3 km storm-relative helicity
- 111 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
712
WUUS51 KPHI 230953
SVRPHI
NJC005-PAC017-091-101-231045-
/O.NEW.KPHI.SV.W.0012.240523T0953Z-240523T1045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
553 AM EDT Thu May 23 2024
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Burlington County in southern New Jersey...
Eastern Montgomery County in southeastern Pennsylvania...
Southeastern Bucks County in southeastern Pennsylvania...
Northeastern Philadelphia County in southeastern Pennsylvania...
* Until 645 AM EDT.
* At 553 AM EDT, a severe thunderstorm was located over Philadelphia,
moving east at 25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Philadelphia, Bensalem, Willingboro, Burlington, Bristol,
Riverside, Palmyra, Beverly, Rockledge, Tullytown, Wissinoming,
Florence-Roebling, Germantown, Northeast Philadelphia, Tacony,
Andalusia, Holmesburg, Levittown, Feasterville-Trevose, and
Cinnaminson.
This includes the following highways...
New Jersey Turnpike near exit 5.
Pennsylvania Turnpike between mile markers 350 and 359.
Interstate 95 in Pennsylvania between mile markers 26 and 40.
Interstate 295 in New Jersey between mile markers 44 and 49.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4000 7480 3999 7517 4006 7520 4022 7479
TIME...MOT...LOC 0953Z 258DEG 20KT 4003 7513
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Deal2 follow-up statements
403
WWUS51 KPHI 231011
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
611 AM EDT Thu May 23 2024
PAC091-231021-
/O.CAN.KPHI.SV.W.0012.000000T0000Z-240523T1045Z/
Montgomery PA-
611 AM EDT Thu May 23 2024
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MONTGOMERY COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has weakened and
moved out of the warned area. Therefore, the warning has been
cancelled.
LAT...LON 4004 7503 4010 7506 4019 7485 4022 7480
4020 7479 4017 7479 4007 7480
TIME...MOT...LOC 1011Z 252DEG 22KT 4007 7499
$$
NJC005-PAC017-101-231045-
/O.CON.KPHI.SV.W.0012.000000T0000Z-240523T1045Z/
Burlington NJ-Bucks PA-Philadelphia PA-
611 AM EDT Thu May 23 2024
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 AM EDT
FOR NORTHWESTERN BURLINGTON...SOUTHEASTERN BUCKS AND NORTHEASTERN
PHILADELPHIA COUNTIES...
At 611 AM EDT, a severe thunderstorm was located over Andalusia, or 8
miles northeast of Philadelphia, moving east at 25 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Philadelphia, Bensalem, Burlington, Bristol, Beverly, Tullytown,
Andalusia, Florence-Roebling, Holmesburg, Northeast Philadelphia,
Levittown, Edgewater Park, Penndel, Langhorne Manor, Hulmeville,
Cornwells Heights-Eddington, Croydon, and Fairless Hills.
This includes the following highways...
Pennsylvania Turnpike between mile markers 351 and 359.
Interstate 95 in Pennsylvania between mile markers 32 and 40.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4004 7503 4010 7506 4019 7485 4022 7480
4020 7479 4017 7479 4007 7480
TIME...MOT...LOC 1011Z 252DEG 22KT 4007 7499
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Deal845
WWUS51 KPHI 231017
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
617 AM EDT Thu May 23 2024
NJC005-PAC017-101-231027-
/O.CAN.KPHI.SV.W.0012.000000T0000Z-240523T1045Z/
Burlington NJ-Bucks PA-Philadelphia PA-
617 AM EDT Thu May 23 2024
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN BURLINGTON...
SOUTHEASTERN BUCKS AND NORTHEASTERN PHILADELPHIA COUNTIES IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
LAT...LON 4004 7503 4010 7506 4019 7485 4022 7480
4020 7479 4017 7479 4007 7480
TIME...MOT...LOC 1015Z 258DEG 20KT 4008 7495
$$
DealThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 8:21 AM EDT | Severe Thunderstorm Warning | PHI | Bucks, Carbon, Lehigh, Monroe, Northampton | 39 min |
| May 23, 8:59 AM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren | 46 min |
| May 23, 9:44 AM EDT | Special Marine Warning | PHI | 61 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2024Severe Thunderstorm Warnings in New Jersey, 2024Every severe thunderstorm warning in 2024
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.