Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 347, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Sep 9, 2023, 12:56 PM EDT for Atlantic County, Burlington County, Ocean County, New Jersey. It was in force for 64 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
- Sep 9, 2023, 12:56 PM EDT (16:56 UTC)
- Expired
- Sep 9, 2023, 2:00 PM EDT
- In force
- 64 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Burlington County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 41 km from the middle of the area, began a volume at 16:59 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
Wallops Is Stn, VA (KWAL), launched 12:00Z, 4.9 hours before the alert went out and 200 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
- 1782 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 820 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -10 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
579
WUUS51 KPHI 091656
SVRPHI
NJC001-005-029-091800-
/O.NEW.KPHI.SV.W.0347.230909T1656Z-230909T1800Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1256 PM EDT Sat Sep 9 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
East central Atlantic County in southern New Jersey...
South central Ocean County in southern New Jersey...
Southeastern Burlington County in southern New Jersey...
* Until 200 PM EDT.
* At 1256 PM EDT, a severe thunderstorm was located over Wading
River, or 14 miles north of Atlantic City, and is 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...
Egg Harbor City, Port Republic, Bass River State Forest, New
Gretna, Wading River and Mystic Island.
This includes Garden State Parkway between mile markers 43 and 60.
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 3951 7462 3975 7456 3969 7430 3947 7447
TIME...MOT...LOC 1656Z 281DEG 3KT 3958 7450
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann2 follow-up statements
748
WWUS51 KPHI 091731
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
131 PM EDT Sat Sep 9 2023
NJC001-005-029-091800-
/O.CON.KPHI.SV.W.0347.000000T0000Z-230909T1800Z/
Atlantic NJ-Ocean NJ-Burlington NJ-
131 PM EDT Sat Sep 9 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 200 PM EDT
FOR EAST CENTRAL ATLANTIC...SOUTH CENTRAL OCEAN AND SOUTHEASTERN
BURLINGTON COUNTIES...
At 131 PM EDT, a severe thunderstorm was located over Port Republic,
or 13 miles north of Atlantic City, and is nearly stationary.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Egg Harbor City, Port Republic, Bass River State Forest, New Gretna,
Wading River and Mystic Island.
This includes Garden State Parkway between mile markers 43 and 60.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3951 7462 3975 7456 3969 7430 3947 7447
TIME...MOT...LOC 1731Z 287DEG 2KT 3957 7451
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Staarmann311
WWUS51 KPHI 091751
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
151 PM EDT Sat Sep 9 2023
NJC001-005-029-091801-
/O.EXP.KPHI.SV.W.0347.000000T0000Z-230909T1800Z/
Atlantic NJ-Ocean NJ-Burlington NJ-
151 PM EDT Sat Sep 9 2023
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL ATLANTIC...SOUTH
CENTRAL OCEAN AND SOUTHEASTERN BURLINGTON COUNTIES WILL EXPIRE AT 200
PM EDT...
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 will be allowed to expire. However small
hail, gusty winds, and heavy rain are still possible with this
thunderstorm.
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 3951 7462 3975 7456 3969 7430 3947 7447
TIME...MOT...LOC 1751Z 281DEG 3KT 3957 7449
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 8, 10:17 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 43 min |
| Sep 8, 10:58 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 47 min |
| Sep 9, 12:57 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 50 min |
| Sep 9, 1:17 PM EDT | Special Weather Statement | PHI | Ocean | 28 min |
| Sep 9, 1:46 PM EDT | Special Weather Statement | PHI | Ocean | 29 min |
| Sep 9, 2:07 PM EDT | Special Weather Statement | PHI | Atlantic | 38 min |
| Sep 9, 2:16 PM EDT | Special Weather Statement | PHI | Burlington | 29 min |
| Sep 9, 2:26 PM EDT | Special Weather Statement | PHI | Middlesex | 34 min |
| Sep 9, 2:42 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Somerset | 48 min |
| Sep 9, 3:09 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 49 min |
| Sep 9, 3:34 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 56 min |
| Sep 9, 3:40 PM EDT | Areal Flood Advisory | PHI | Middlesex, Morris, Somerset | 2 hr |
| Sep 9, 3:47 PM EDT | Severe Thunderstorm Warning | PHI | Morris | 43 min |
| Sep 9, 3:58 PM EDT | Special Weather Statement | PHI | Somerset | 32 min |
| Sep 9, 4:05 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Sep 9, 4:08 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset, Sussex | 53 min |
| Sep 9, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex, Warren | 53 min |
| Sep 9, 4:40 PM EDT | Special Marine Warning | PHI | 65 min | |
| Sep 9, 4:42 PM EDT | Areal Flood Advisory | PHI | Morris | 3 hr |
| Sep 9, 4:49 PM EDT | Special Weather Statement | PHI | Warren | 41 min |
| Sep 9, 4:57 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 49 min |
| Sep 9, 5:18 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 45 min |
| Sep 9, 5:34 PM EDT | Special Weather Statement | PHI | Salem | 26 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.