Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 256, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 29, 2023, 5:38 PM EDT for 5 counties in New Jersey. It was in force for 52 min. 4 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
- Jul 29, 2023, 5:38 PM EDT (21:38 UTC)
- Expired
- Jul 29, 2023, 6:30 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 64 km from the middle of the area, began a volume at 21:38 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 |
|---|---|---|---|
| Jul 29, 5:38 PM EDT | TSTM WND DMG | 1 Ssw Woodstown, NJ | Several trees and power lines down along Bailey Street and South Main Street in Woodstown. Time estimated from radar. |
| Jul 29, 5:38 PM EDT | TSTM WND DMG | Woodstown, NJ | Social media photo of several snapped power poles along South Main Street in Woodstown. Time estimated from radar. |
| Jul 29, 5:40 PM EDT | TSTM WND DMG | Woodstown, NJ | Multiple reports of trees and wires blown down across Salem County. Time and location estimated from radar. |
| Jul 29, 6:09 PM EDT | TSTM WND DMG | 3 Sw Monroe Twp, NJ | Corrects time on previous tstm wnd dmg report from 3 SW Monroe Twp. Tree limbs down on power lines. Power outages in the area. Time estimated from radar. |
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 |
|---|---|---|---|
| Jul 29, 2:48 PM EDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.6 hours before the alert went out and 189 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
- 245 J/kg
- Mixed-layer CIN
- -215 J/kg
- Mixed-layer LCL
- 1190 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
000
WUUS51 KPHI 292138
SVRPHI
NJC001-007-011-015-033-292230-
/O.NEW.KPHI.SV.W.0256.230729T2138Z-230729T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
538 PM EDT Sat Jul 29 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Atlantic County in southern New Jersey...
Northeastern Cumberland County in southern New Jersey...
Central Salem County in southern New Jersey...
Southeastern Camden County in southern New Jersey...
Southern Gloucester County in southern New Jersey...
* Until 630 PM EDT.
* At 538 PM EDT, a severe thunderstorm was located over Woodstown, or
13 miles southeast of Wilmington, moving east at 40 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...
Vineland, Glassboro, Hammonton, Pitman, Clayton, Carneys Point,
Buena, Woodstown, Alloway, Quinton, Chesilhurst, Newfield, Elmer,
Franklinville, Sicklerville, Victory Lakes, Williamstown, Olivet,
Malaga and Mullica Hill.
This includes the following highways...
New Jersey Turnpike near exit 1.
Interstate 295 in New Jersey near mile marker 5.
Atlantic City Expressway between mile markers 26 and 41.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3941 7480 3955 7545 3972 7544 3977 7479
3976 7478
TIME...MOT...LOC 2138Z 272DEG 34KT 3963 7531
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB2 follow-up statements
690
WWUS51 KPHI 292158
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
558 PM EDT Sat Jul 29 2023
NJC001-007-011-015-033-292230-
/O.CON.KPHI.SV.W.0256.000000T0000Z-230729T2230Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
558 PM EDT Sat Jul 29 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHWESTERN ATLANTIC...NORTHEASTERN CUMBERLAND...EAST CENTRAL
SALEM...SOUTHEASTERN CAMDEN AND SOUTHERN GLOUCESTER COUNTIES...
At 558 PM EDT, a severe thunderstorm was located over Franklinville,
or 11 miles north of Vineland, moving east at 40 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Vineland, Glassboro, Hammonton, Pitman, Clayton, Buena, Woodstown,
Alloway, Chesilhurst, Newfield, Elmer, Franklinville, Sicklerville,
Victory Lakes, Williamstown, Olivet, Malaga, Mullica Hill, Mizpah and
Monroe Township.
This includes Atlantic City Expressway between mile markers 26 and
41.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3953 7534 3973 7532 3977 7479 3976 7478
3941 7480
TIME...MOT...LOC 2158Z 272DEG 34KT 3962 7506
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB515
WWUS51 KPHI 292209
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
609 PM EDT Sat Jul 29 2023
NJC001-007-011-015-033-292230-
/O.CON.KPHI.SV.W.0256.000000T0000Z-230729T2230Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
609 PM EDT Sat Jul 29 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHWESTERN ATLANTIC...NORTHEASTERN CUMBERLAND...EAST CENTRAL
SALEM...SOUTHEASTERN CAMDEN AND SOUTHEASTERN GLOUCESTER COUNTIES...
At 609 PM EDT, a severe thunderstorm was located over Victory Lakes,
or 11 miles north of Vineland, moving east at 40 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...
Vineland, Glassboro, Hammonton, Pitman, Clayton, Buena, Chesilhurst,
Newfield, Franklinville, Victory Lakes, Sicklerville, Williamstown,
Malaga, Mizpah, Monroe Township, Folsom and Collings Lakes.
This includes Atlantic City Expressway between mile markers 26 and
41.
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.
&&
LAT...LON 3949 7514 3974 7513 3977 7479 3976 7478
3941 7480
TIME...MOT...LOC 2209Z 270DEG 34KT 3962 7492
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLBThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 8:04 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 41 min |
| Jul 28, 8:33 PM EDT | Special Weather Statement | PHI | Cumberland, Gloucester, Salem | 42 min |
| Jul 28, 8:36 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jul 28, 9:02 PM EDT | Special Weather Statement | PHI | Camden | 43 min |
| Jul 28, 9:18 PM EDT | Special Weather Statement | PHI | Cape May, Cumberland, Salem | 42 min |
| Jul 28, 9:32 PM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 28, 9:44 PM EDT | Special Weather Statement | PHI | Burlington, Camden, Mercer, Middlesex | 61 min |
| Jul 28, 10:00 PM EDT | Special Weather Statement | PHI | Atlantic, Cape May | 45 min |
| Jul 28, 10:28 PM EDT | Special Marine Warning | PHI | 62 min | |
| Jul 28, 10:54 PM EDT | Special Weather Statement | PHI | Cumberland, Salem | 36 min |
| Jul 28, 11:15 PM EDT | Special Weather Statement | PHI | Cape May | 30 min |
| Jul 28, 11:26 PM EDT | Special Marine Warning | PHI | 94 min | |
| Jul 29, 12:43 AM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 47 min |
| Jul 29, 12:55 AM EDT | Special Marine Warning | PHI | 65 min | |
| Jul 29, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Gloucester, Salem | 50 min |
| Jul 29, 5:05 PM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 29, 5:44 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 46 min |
| Jul 29, 5:51 PM EDT | Special Marine Warning | PHI | 114 min | |
| Jul 29, 6:07 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland, Salem | 68 min |
| Jul 29, 6:13 PM EDT | Special Weather Statement | PHI | Morris, Sussex | 32 min |
| Jul 29, 6:13 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 47 min |
| Jul 29, 6:26 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 49 min |
| Jul 29, 6:28 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Ocean | 47 min |
| Jul 29, 6:33 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 42 min |
| Jul 29, 6:41 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 49 min |
| Jul 29, 6:46 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 44 min |
| Jul 29, 6:51 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jul 29, 7:19 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jul 29, 7:19 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 26 min |
| Jul 29, 7:35 PM EDT | Special Weather Statement | PHI | Monmouth | 70 min |
| Jul 29, 7:53 PM EDT | Special Marine Warning | PHI | 97 min | |
| Jul 29, 7:54 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 40 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.