Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 75, NWS Philadelphia/Mount Holly

June 16, 2023Bucks County, Pennsylvania; 5 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 16, 2023, 12:41 PM EDT for Bucks County, Pennsylvania; 5 counties in New Jersey. 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 16, 2023, 12:41 PM EDT (16:41 UTC)
Expired: Jun 16, 2023, 1:30 PM EDT
In force: 49 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Possible
Hail: 0.88 in
Wind: 60.0 mph

Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Ocean County, NJ, Bucks County, PA

The radar

The Philadelphia radar (KDIX), 32 km from the middle of the area, began a volume at 16:43 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 16, 1:05 PM EDT	TSTM WND GST 61	2 E Fort Dix, NJ	Corrects previous tstm wnd gst report from 2 E Fort Dix. 61 mph thunderstorm wind gust measured at Joint Base.
Jun 16, 1:05 PM EDT	TSTM WND GST 61	2 E Fort Dix, NJ	Corrects previous tstm wnd gst report from 2 E Fort Dix. 61 mph thunderstorm wind gust measured at Joint Base.

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 16, 11:06 AM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 4.7 hours before the alert went out and 164 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 5 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1418 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 60 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

892 
WUUS51 KPHI 161641
SVRPHI
NJC005-021-023-025-029-PAC017-161730-
/O.NEW.KPHI.SV.W.0075.230616T1641Z-230616T1730Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1241 PM EDT Fri Jun 16 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Ocean County in southern New Jersey...
  Mercer County in central New Jersey...
  Northern Burlington County in southern New Jersey...
  Southwestern Monmouth County in central New Jersey...
  Southwestern Middlesex County in northern New Jersey...
  Southeastern Bucks County in southeastern Pennsylvania...

* Until 130 PM EDT.

* At 1241 PM EDT, severe thunderstorms were located along a line
  extending from near Lawrenceville to Bordentown to near Lumberton,
  moving east at 45 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Trenton, Mount Laurel, Manalapan, Ewing, Willingboro, Lumberton,
  Florence, Burlington, Bristol, Mount Holly, Jamesburg, Hightstown,
  Bordentown, Cranbury, Yardley, Tullytown, Allentown, Roosevelt,
  Wrightstown and Florence-Roebling.

This includes the following highways...
 New Jersey Turnpike between exits 4 and 9.
 Pennsylvania Turnpike between mile markers 357 and 359.
 Interstate 195 in New Jersey between mile markers 0 and 23.
 Interstate 295 in New Jersey between mile markers 38 and 76.

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 4037 7441 4023 7427 4006 7434 3992 7496
      4012 7488 4029 7491
TIME...MOT...LOC 1641Z 250DEG 39KT 4029 7477 4014 7474 3997 7486 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB

3 follow-up statements

069 
WWUS51 KPHI 161705
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
105 PM EDT Fri Jun 16 2023

NJC005-021-023-025-029-PAC017-161730-
/O.CON.KPHI.SV.W.0075.000000T0000Z-230616T1730Z/
Ocean NJ-Mercer NJ-Burlington NJ-Monmouth NJ-Middlesex NJ-Bucks PA-
105 PM EDT Fri Jun 16 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR NORTHWESTERN OCEAN...MERCER...NORTHEASTERN BURLINGTON...
SOUTHWESTERN MONMOUTH...SOUTHWESTERN MIDDLESEX AND EASTERN BUCKS
COUNTIES...

At 104 PM EDT, severe thunderstorms were located along a line
extending from near Jamesburg to near Roosevelt to near Woodruff,
moving east at 45 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...
Trenton, Manalapan, Ewing, Florence, Mount Holly, Jamesburg,
Hightstown, Bordentown, Cranbury, Tullytown, Allentown, Roosevelt,
Wrightstown, Florence-Roebling, Six Flags Theme Park, Jacksonville,
West Freehold, Georgetown, Cassville and Clarksburg.

This includes the following highways...
 New Jersey Turnpike between exits 6 and 9.
 Interstate 195 in New Jersey between mile markers 0 and 23.
 Interstate 295 in New Jersey between mile markers 50 and 74.

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 4037 7441 4023 7427 4006 7434 3996 7480
      4014 7480 4030 7482
TIME...MOT...LOC 1704Z 250DEG 39KT 4038 7446 4023 7443 4006 7455 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB

438 
WWUS51 KPHI 161717 RRA
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
117 PM EDT Fri Jun 16 2023

PAC017-161727-
/O.CAN.KPHI.SV.W.0075.000000T0000Z-230616T1730Z/
Bucks PA-
117 PM EDT Fri Jun 16 2023

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN BUCKS 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 600 PM EDT for
southern, central and northern New Jersey.

LAT...LON 4037 7441 4023 7427 4006 7434 4000 7465
      4015 7467 4032 7469
TIME...MOT...LOC 1717Z 270DEG 39KT 4043 7430 4028 7427 4011 7439 

$$

NJC005-021-023-025-029-161730-
/O.CON.KPHI.SV.W.0075.000000T0000Z-230616T1730Z/
Ocean NJ-Mercer NJ-Burlington NJ-Monmouth NJ-Middlesex NJ-
117 PM EDT Fri Jun 16 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM EDT
FOR NORTHWESTERN OCEAN...SOUTHEASTERN MERCER...NORTHEASTERN
BURLINGTON...SOUTHWESTERN MONMOUTH AND SOUTHWESTERN MIDDLESEX
COUNTIES...

At 117 PM EDT, severe thunderstorms were located along a line
extending from Brownville to East Freehold to Cassville, moving east
at 45 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...
Manalapan, Jamesburg, Hightstown, Cranbury, Allentown, Roosevelt,
Wrightstown, Princeton Meadows, Windsor, Six Flags Theme Park,
Plainsboro Center, Jacksons Mills, West Freehold, Georgetown,
Clearbrook Park, Cassville, Clarksburg, Vista Center, Edinburg and
Crosswicks.

This includes the following highways...
 New Jersey Turnpike between exits 8 and 9.
 Interstate 195 in New Jersey between mile markers 3 and 23.

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 4037 7441 4023 7427 4006 7434 4000 7465
      4015 7467 4032 7469
TIME...MOT...LOC 1717Z 270DEG 39KT 4043 7430 4028 7427 4011 7439 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

MLB

139 
WWUS51 KPHI 161723
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
123 PM EDT Fri Jun 16 2023

NJC005-021-023-025-029-161732-
/O.EXP.KPHI.SV.W.0075.000000T0000Z-230616T1730Z/
Ocean NJ-Mercer NJ-Burlington NJ-Monmouth NJ-Middlesex NJ-
123 PM EDT Fri Jun 16 2023

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OCEAN...
SOUTHEASTERN MERCER...NORTHEASTERN BURLINGTON...SOUTHWESTERN MONMOUTH
AND SOUTHWESTERN MIDDLESEX COUNTIES WILL EXPIRE AT 130 PM EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 600 PM EDT for
southern, central and northern New Jersey.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.

Remember, a Severe Thunderstorm Warning still remains in effect for 
Ocean, Mercer, Burlington, Monmouth, and Middlesex counties until 
2:15 PM EDT.

LAT...LON 4037 7441 4023 7427 4006 7434 4000 7465
      4015 7467 4032 7469
TIME...MOT...LOC 1722Z 250DEG 39KT 4045 7424 4030 7421 4013 7433 

$$

MLB

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 16, 10:26 AM EDT	Special Weather Statement	PHI	Chester	34 min
Jun 16, 10:48 AM EDT	Severe Thunderstorm Warning	PHI	Chester	42 min
Jun 16, 11:02 AM EDT	Special Weather Statement	PHI	Delaware	28 min
Jun 16, 11:10 AM EDT	Tornado Warning	PHI	Berks, Chester	35 min
Jun 16, 11:20 AM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Delaware, Montgomery	40 min
Jun 16, 11:33 AM EDT	Tornado Warning	PHI	Chester, Delaware, Montgomery	27 min
Jun 16, 11:46 AM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	59 min
Jun 16, 11:58 AM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	47 min
Jun 16, 12:46 PM EDT	Areal Flood Advisory	PHI	Bucks, Delaware, Montgomery, Philadelphia	3 hr
Jun 16, 12:49 PM EDT	Flash Flood Warning	PHI	Bucks, Philadelphia	3 hr
Jun 16, 10:39 AM EDT	Special Weather Statement	PHI	Cape May	36 min
Jun 16, 11:01 AM EDT	Special Marine Warning	PHI		44 min
Jun 16, 11:04 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May	41 min
Jun 16, 11:43 AM EDT	Special Marine Warning	PHI		62 min
Jun 16, 11:54 AM EDT	Special Marine Warning	PHI		66 min
Jun 16, 12:25 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	65 min
Jun 16, 12:30 PM EDT	Special Marine Warning	PHI		90 min
Jun 16, 12:55 PM EDT	Tornado Warning	PHI	Burlington, Ocean	35 min
Jun 16, 1:13 PM EDT	Special Marine Warning	PHI		2 hr
Jun 16, 1:15 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Mercer, Middlesex and 2 more	60 min
Jun 16, 1:29 PM EDT	Special Marine Warning	PHI		2 hr
Jun 16, 2:53 PM EDT	Special Marine Warning	PHI		67 min
Jun 16, 3:54 PM EDT	Special Marine Warning	PHI		66 min
Jun 16, 5:07 PM EDT	Special Marine Warning	PHI		53 min
Jun 16, 6:01 PM EDT	Special Marine Warning	PHI		59 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2023 Severe Thunderstorm Warnings in Pennsylvania, 2023 Every severe thunderstorm warning in 2023

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.