Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 331, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 8, 2023, 3:27 PM EDT for 4 counties in New Jersey. It was in force for 63 min. 9 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
- Sep 8, 2023, 3:27 PM EDT (19:27 UTC)
- Expired
- Sep 8, 2023, 4:30 PM EDT
- In force
- 63 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Burlington County, NJ, Mercer County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 8 km from the middle of the area, began a volume at 19:28 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 |
|---|---|---|---|
| Sep 8, 3:40 PM EDT | HAIL 0.25 | 2 S Southampton Twp, NJ | Trained spotter reports large amount of pea-sized hail. |
| Sep 8, 3:47 PM EDT | HAIL 0.25 | Browns Mills, NJ | Report on social media of pea-sized hail. |
| Sep 8, 3:50 PM EDT | HAIL 0.5 | 2 S Southampton Twp, NJ | Report from mPING: Half-inch (0.50 in.). |
| Sep 8, 4:01 PM EDT | HAIL 1 | 1 Ssw Browns Mills, NJ | Social media video showing quarter sized hail falling in Pemberton Township. Time estimated from radar. |
| Sep 8, 4:08 PM EDT | HAIL 1.5 | 1 Ne Browns Mills, NJ | Social media photo of ping pong ball sized hail in Browns Mills. Time estimated from radar. |
| Sep 8, 4:19 PM EDT | HAIL 0.5 | Wrightstown, NJ | DOD meteorologist reports half inch diameter hail at the Wrightstown base entrance. Time estimated from radar. |
| Sep 8, 4:30 PM EDT | TSTM WND DMG | Allentown, NJ | Two reports of trees down on power lines in Allentown. Time estimated from radar. |
| Sep 8, 4:38 PM EDT | HAIL 1.5 | Browns Mills, NJ | Social media photo of ping pong ball sized hail in Browns Mills. Time estimated from radar. |
| Sep 8, 4:40 PM EDT | HAIL 0.75 | Browns Mills, NJ | Report on social media of penny-sized hail in Browns Mills. |
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 |
|---|---|---|---|
| Sep 8, 3:11 PM EDT | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.5 hours before the alert went out and 170 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
- 2469 J/kg
- Mixed-layer CIN
- -23 J/kg
- Mixed-layer LCL
- 566 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 92 m²/s²
- 0-3 km storm-relative helicity
- 87 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.0
The text
As transmitted.
376
WUUS51 KPHI 081927
SVRPHI
NJC005-021-025-029-082030-
/O.NEW.KPHI.SV.W.0331.230908T1927Z-230908T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
327 PM EDT Fri Sep 8 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Ocean County in southern New Jersey...
South central Mercer County in central New Jersey...
Northeastern Burlington County in southern New Jersey...
Southwestern Monmouth County in central New Jersey...
* Until 430 PM EDT.
* At 327 PM EDT, a severe thunderstorm was located near Cedar Glen
Lakes, or 14 miles west of Toms River, and is nearly stationary.
Additional clusters of severe thunderstorms are also located
within the warned area and are nearly stationary.
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...
Toms River, Lakewood, Jackson, Tabernacle, Presidential Lakes
Estates, Lakehurst, Allentown, Pemberton, Wrightstown, Six Flags
Theme Park, Cedar Glen West, Leisuretowne, Georgetown, Cassville,
Crosswicks, Presidential Lakes, Woodruff, Cedar Glen Lakes,
Imlaystown and Whiting.
This includes the following highways...
New Jersey Turnpike near exit 8.
Interstate 195 in New Jersey near mile marker 3.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3997 7429 3985 7454 3982 7470 3989 7478
4020 7467 4011 7420
TIME...MOT...LOC 1927Z 266DEG 1KT 3998 7446
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann1 follow-up statement
033
WWUS51 KPHI 082008
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
408 PM EDT Fri Sep 8 2023
NJC005-021-025-029-082030-
/O.CON.KPHI.SV.W.0331.000000T0000Z-230908T2030Z/
Ocean NJ-Mercer NJ-Burlington NJ-Monmouth NJ-
408 PM EDT Fri Sep 8 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHWESTERN OCEAN...SOUTH CENTRAL MERCER...NORTHEASTERN
BURLINGTON AND SOUTHWESTERN MONMOUTH COUNTIES...
At 407 PM EDT, a severe thunderstorm was located over Cedar Glen
Lakes, or 14 miles west of Toms River, and is nearly stationary.
Additional clusters of severe thunderstorms are also located within
the warned area and are nearly stationary.
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...
Toms River, Lakewood, Jackson, Tabernacle, Presidential Lakes
Estates, Lakehurst, Allentown, Pemberton, Wrightstown, Six Flags
Theme Park, Cedar Glen West, Leisuretowne, Georgetown, Cassville,
Crosswicks, Presidential Lakes, Woodruff, Cedar Glen Lakes,
Imlaystown and Whiting.
This includes the following highways...
New Jersey Turnpike near exit 8.
Interstate 195 in New Jersey near mile marker 3.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3997 7429 3985 7454 3982 7470 3989 7478
4020 7467 4011 7420
TIME...MOT...LOC 2007Z 277DEG 2KT 3995 7445
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 7, 9:46 PM EDT | Special Weather Statement | PHI | Sussex | 29 min |
| Sep 8, 6:02 AM EDT | Special Marine Warning | PHI | 40 min | |
| Sep 8, 1:36 PM EDT | Special Weather Statement | PHI | Burlington | 24 min |
| Sep 8, 1:37 PM EDT | Special Weather Statement | PHI | Monmouth | 23 min |
| Sep 8, 1:46 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 44 min |
| Sep 8, 1:50 PM EDT | Special Marine Warning | PHI | 115 min | |
| Sep 8, 1:54 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 51 min |
| Sep 8, 2:27 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 48 min |
| Sep 8, 2:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Middlesex, Monmouth, Ocean | 45 min |
| Sep 8, 2:33 PM EDT | Areal Flood Advisory | PHI | Burlington, Monmouth, Ocean | 3 hr |
| Sep 8, 2:44 PM EDT | Special Marine Warning | PHI | 18 min | |
| Sep 8, 2:45 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 45 min |
| Sep 8, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Somerset | 52 min |
| Sep 8, 3:17 PM EDT | Special Marine Warning | PHI | 58 min | |
| Sep 8, 3:29 PM EDT | Flash Flood Warning | PHI | Burlington, Ocean | 4 hr |
| Sep 8, 3:31 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 44 min |
| Sep 8, 3:36 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 30 min |
| Sep 8, 3:43 PM EDT | Special Weather Statement | PHI | Middlesex | 32 min |
| Sep 8, 3:58 PM EDT | Special Weather Statement | PHI | Somerset | 32 min |
| Sep 8, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 51 min |
| Sep 8, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 51 min |
| Sep 8, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 60 min |
| Sep 8, 4:50 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 40 min |
| Sep 8, 5:12 PM EDT | Areal Flood Advisory | PHI | Hunterdon | 3 hr |
| Sep 8, 5:14 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 46 min |
| Sep 8, 5:21 PM EDT | Flash Flood Warning | PHI | Hunterdon | 4 hr |
| Sep 8, 5:34 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 41 min |
| Sep 8, 5:49 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 41 min |
| Sep 8, 6:11 PM EDT | Special Weather Statement | PHI | Warren | 34 min |
| Sep 8, 6:34 PM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2023Every 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.