Alert archive / New Jersey / Tornado Warnings in 2020
Tornado Warning 30, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Aug 7, 2020, 6:00 PM EDT for Gloucester County, Salem County, New Jersey; New Castle County, Delaware; Delaware County, Pennsylvania. It was in force for 30 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
- Aug 7, 2020, 6:00 PM EDT (22:00 UTC)
- Expired
- Aug 7, 2020, 6:30 PM EDT
- In force
- 30 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties New Castle County, DE, Gloucester County, NJ, Salem County, NJ, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 85 km from the middle of the area, began a volume at 22:02 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
Washington/Dulle, VA (KIAD), launched 12:00Z, 10.0 hours before the alert went out and 196 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
- 301 J/kg
- Mixed-layer CIN
- -67 J/kg
- Mixed-layer LCL
- 665 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- -37 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
598
WFUS51 KPHI 072200
TORPHI
DEC003-NJC015-033-PAC045-072230-
/O.NEW.KPHI.TO.W.0030.200807T2200Z-200807T2230Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
600 PM EDT Fri Aug 7 2020
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
Northeastern New Castle County in northern Delaware...
Northwestern Salem County in southern New Jersey...
Northwestern Gloucester County in southern New Jersey...
Southeastern Delaware County in southeastern Pennsylvania...
* Until 630 PM EDT.
* At 600 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Arden, or near Wilmington, moving east at 25 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Wilmington, Chester, West Deptford, Carneys Point, Paulsboro, Penns
Grove, Woodstown, National Park, Swedesboro, Arden, Beckett,
Mullica Hill, Gibbstown, Tinicum Township, Chester Township,
Eddystone, Marcus Hook, Trainer, Bellefonte and Ardentown.
This includes the following highways...
New Jersey Turnpike between exits 1 and 2.
Interstate 95 in Pennsylvania between mile markers 0 and 3.
Interstate 95 in Delaware between mile markers 19 and 23.
Interstate 295 in New Jersey between mile markers 3 and 21.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3983 7549 3987 7519 3956 7520 3971 7552
TIME...MOT...LOC 2200Z 279DEG 21KT 3977 7546
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Robertson1 follow-up statement
027
WWUS51 KPHI 072220
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
620 PM EDT Fri Aug 7 2020
DEC003-PAC045-072229-
/O.CAN.KPHI.TO.W.0030.000000T0000Z-200807T2230Z/
New Castle DE-Delaware PA-
620 PM EDT Fri Aug 7 2020
...THE TORNADO WARNING FOR NORTHEASTERN NEW CASTLE AND SOUTHEASTERN
DELAWARE COUNTIES IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled. A
severe thunderstorm warning remains in effect.
LAT...LON 3971 7543 3981 7538 3980 7519 3979 7519
3961 7525
TIME...MOT...LOC 2219Z 288DEG 14KT 3974 7537
$$
NJC015-033-072230-
/O.CON.KPHI.TO.W.0030.000000T0000Z-200807T2230Z/
Salem NJ-Gloucester NJ-
620 PM EDT Fri Aug 7 2020
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM EDT FOR NORTH
CENTRAL SALEM AND WEST CENTRAL GLOUCESTER COUNTIES...
At 619 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Beckett, or 8 miles east of Wilmington, moving east
at 15 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Woodstown, Swedesboro, Beckett and Mullica Hill.
This includes the following highways...
New Jersey Turnpike near exit 2.
Interstate 295 in New Jersey between mile markers 6 and 14.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 3971 7543 3981 7538 3980 7519 3979 7519
3961 7525
TIME...MOT...LOC 2219Z 288DEG 14KT 3974 7537
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
RobertsonThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 5:15 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Warren | 3 hr |
| Aug 7, 5:25 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Salem | 3 hr |
| Aug 7, 5:43 PM EDT | Flash Flood Warning | PHI | Camden, Gloucester | 4 hr |
| Aug 7, 5:57 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem | 48 min |
| Aug 7, 6:08 PM EDT | Areal Flood Advisory | PHI | Cumberland, Gloucester, Salem | 3 hr |
| Aug 7, 6:16 PM EDT | Areal Flood Advisory | PHI | Mercer | 2 hr |
| Aug 7, 6:24 PM EDT | Special Marine Warning | PHI | 66 min | |
| Aug 7, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer | 27 min |
| Aug 7, 6:41 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 49 min |
| Aug 7, 6:57 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 48 min |
| Aug 7, 7:24 PM EDT | Special Marine Warning | PHI | 66 min | |
| Aug 7, 7:25 PM EDT | Flash Flood Warning | PHI | Atlantic, Cape May, Cumberland, Gloucester | 4 hr |
| Aug 7, 7:28 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more | 62 min |
| Aug 7, 5:03 PM EDT | Flash Flood Warning | PHI | New Castle | 5 hr |
| Aug 7, 5:38 PM EDT | Severe Thunderstorm Warning | PHI | New Castle | 52 min |
| Aug 7, 5:49 PM EDT | Tornado Warning | PHI | New Castle | 26 min |
| Aug 7, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 63 min |
| Aug 7, 6:43 PM EDT | Areal Flood Advisory | PHI | Kent, New Castle | 4 hr |
| Aug 7, 7:04 PM EDT | Severe Thunderstorm Warning | PHI | Kent, New Castle | 41 min |
| Aug 7, 7:21 PM EDT | Flash Flood Warning | PHI | Kent, New Castle | 5 hr |
| Aug 7, 7:28 PM EDT | River Flood Warning | PHI | New Castle | 2 hr |
| Aug 7, 7:36 PM EDT | Special Weather Statement | PHI | Kent | 39 min |
| Aug 7, 6:49 AM EDT | Areal Flood Advisory | PHI | Berks | 4 hr |
| Aug 7, 9:22 AM EDT | Areal Flood Advisory | PHI | Bucks | 3 hr |
| Aug 7, 10:34 AM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh | 56 min |
| Aug 7, 11:28 AM EDT | Special Weather Statement | PHI | Carbon, Lehigh | 47 min |
| Aug 7, 2:34 PM EDT | Areal Flood Advisory | PHI | Berks | 4 hr |
| Aug 7, 3:46 PM EDT | Areal Flood Advisory | PHI | Carbon, Lehigh, Northampton | 4 hr |
| Aug 7, 4:10 PM EDT | Flash Flood Warning | PHI | Berks | 2 hr |
| Aug 7, 4:20 PM EDT | Areal Flood Advisory | PHI | Chester, Montgomery | 4 hr |
| Aug 7, 4:32 PM EDT | Flash Flood Warning | PHI | Chester | 3 hr |
| Aug 7, 4:47 PM EDT | Special Weather Statement | PHI | Chester | 28 min |
| Aug 7, 5:00 PM EDT | Severe Thunderstorm Warning | PHI | Chester | 60 min |
| Aug 7, 7:10 PM EDT | River Flood Warning | PHI | Delaware | 7 hr |
| Aug 7, 7:17 PM EDT | Areal Flood Warning | PHI | Bucks, Montgomery | 3 hr |
Nearby
Tornado Warnings in New Jersey, 2020Tornado Warnings in Delaware, 2020Tornado Warnings in Pennsylvania, 2020Every tornado warning in 2020Tornadoes in 2020
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.