Alert archive / New Jersey / Tornado Warnings in 2021
Tornado Warning 48, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Sep 1, 2021, 6:42 PM EDT for Burlington County, Camden County, New Jersey; Bucks County, Philadelphia County, Pennsylvania. It was in force for 33 min. 3 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 1, 2021, 6:42 PM EDT (22:42 UTC)
- Expired
- Sep 1, 2021, 7:15 PM EDT
- In force
- 33 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Burlington County, NJ, Camden County, NJ, Bucks County, PA, Philadelphia County, PA
The radar
The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 22:46 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 1, 6:55 PM EDT | TSTM WND DMG | 1 Ne Cooperstown, NJ | DAMAGE REPORTED NEAR ROUTE 130 IN THE WILLINGBORO AND EDGEWATER PARK AREA. PROBABLE TORNADO. TIME ESTIMATED FROM RADAR. |
| Sep 1, 6:59 PM EDT | TORNADO | 1 Ne Cooperstown, NJ | AFTER CYCLING FROM AN EARLIER TORNADO NEAR MULLICA HILL, NJ, A SUPERCELL THUNDERSTORM PRODUCED AN ADDITIONAL TORNADO IN BURLINGTON TOWNSHIP, NJ NEAR THE TOWNSHIP LINE WITH EDGEWATER PARK, NJ. SOME EVIDENCE OF RFD WINDS WAS PREVALENT SOUTHWARD THROUGH THE CAPIT |
| Sep 1, 7:06 PM EDT | TSTM WND GST 69 | 1 Wnw Burlington, NJ |
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 1, 12:40 PM EDT | Tornado Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.7 hours before the alert went out and 205 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
- 51 J/kg
- Mixed-layer CIN
- -80 J/kg
- Mixed-layer LCL
- 1274 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 31 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted.
254
WFUS51 KPHI 012242
TORPHI
NJC005-007-PAC017-101-012315-
/O.NEW.KPHI.TO.W.0048.210901T2242Z-210901T2315Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
642 PM EDT Wed Sep 1 2021
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
Northwestern Camden County in southern New Jersey...
Northwestern Burlington County in southern New Jersey...
South central Bucks County in southeastern Pennsylvania...
Northeastern Philadelphia County in southeastern Pennsylvania...
* Until 715 PM EDT.
* At 642 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Golden Triangle, or near Camden, moving northeast
at 40 mph. This storm has a history of producing a strong tornado
in Gloucester County.
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...
Philadelphia, Camden, Gloucester City, Cherry Hill, Bensalem, Mount
Laurel, Willingboro, Burlington, Bristol, Riverside, Palmyra,
Magnolia, Beverly, Audubon Park, Wissinoming, Feasterville-Trevose,
Barclay-Kingston, Cherry Hill Mall, Golden Triangle and Tacony.
This includes the following highways...
New Jersey Turnpike between exits 4 and 5.
Pennsylvania Turnpike between mile markers 349 and 355.
Interstate 95 in Pennsylvania between mile markers 28 and 40.
Interstate 76 in New Jersey between mile markers 1 and 2.
Interstate 295 in New Jersey between mile markers 30 and 52.
Interstate 676 in New Jersey near mile marker 0.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 3986 7503 3989 7512 4016 7501 4008 7473
TIME...MOT...LOC 2242Z 213DEG 34KT 3991 7506
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Staarmann2 follow-up statements
000
WWUS51 KPHI 012249
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
649 PM EDT Wed Sep 1 2021
NJC005-007-PAC017-101-012315-
/O.CON.KPHI.TO.W.0048.000000T0000Z-210901T2315Z/
Camden NJ-Burlington NJ-Bucks PA-Philadelphia PA-
649 PM EDT Wed Sep 1 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR NORTH
CENTRAL CAMDEN...NORTHWESTERN BURLINGTON...SOUTH CENTRAL BUCKS AND
NORTHEASTERN PHILADELPHIA COUNTIES...
At 649 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Palmyra, or near Camden, moving northeast at 40
mph. This storm has a history of producing a strong tornado in
Gloucester County.
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...
Philadelphia, Camden, Bensalem, Willingboro, Burlington, Bristol,
Riverside, Palmyra, Beverly, Feasterville-Trevose, Northeast
Philadelphia, Cherry Hill Mall, Feasterville, Tacony, Andalusia,
Holmesburg, Ramblewood, Golden Triangle, Barclay-Kingston and
Pennsauken.
This includes the following highways...
New Jersey Turnpike near exit 5.
Pennsylvania Turnpike between mile markers 349 and 355.
Interstate 95 in Pennsylvania between mile markers 28 and 40.
Interstate 295 in New Jersey between mile markers 36 and 38, and
between mile markers 40 and 52.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 3992 7498 3995 7508 4016 7501 4008 7473
TIME...MOT...LOC 2249Z 213DEG 35KT 3998 7500
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
Staarmann469
WWUS51 KPHI 012259
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
659 PM EDT Wed Sep 1 2021
NJC007-012308-
/O.CAN.KPHI.TO.W.0048.000000T0000Z-210901T2315Z/
Camden NJ-
659 PM EDT Wed Sep 1 2021
...THE TORNADO WARNING FOR NORTH CENTRAL CAMDEN COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has weakened.
moved out of the warned area. Therefore, the warning has been
cancelled.
A Tornado Watch remains in effect until 1000 PM EDT for southern New
Jersey...and southeastern Pennsylvania.
LAT...LON 3999 7489 4003 7504 4016 7500 4008 7473
TIME...MOT...LOC 2258Z 214DEG 35KT 4005 7492
$$
NJC005-PAC017-101-012315-
/O.CON.KPHI.TO.W.0048.000000T0000Z-210901T2315Z/
Burlington NJ-Bucks PA-Philadelphia PA-
659 PM EDT Wed Sep 1 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM EDT FOR
NORTHWESTERN BURLINGTON...SOUTH CENTRAL BUCKS AND NORTHEASTERN
PHILADELPHIA COUNTIES...
At 658 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Beverly, or 11 miles east of Philadelphia, moving
northeast at 40 mph. This storm has a history of producing a strong
tornado in Gloucester County.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Philadelphia, Bensalem, Willingboro, Burlington, Bristol, Riverside,
Beverly, Feasterville-Trevose, Andalusia, Holmesburg, Northeast
Philadelphia, Feasterville, Edgewater Park, Delanco, Cornwells
Heights-Eddington and Croydon.
This includes the following highways...
Pennsylvania Turnpike between mile markers 350 and 355.
Interstate 95 in Pennsylvania between mile markers 30 and 40.
Interstate 295 in New Jersey between mile markers 46 and 52.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!
&&
LAT...LON 3999 7489 4003 7504 4016 7500 4008 7473
TIME...MOT...LOC 2258Z 214DEG 35KT 4005 7492
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 3:23 AM EDT | Gale Warning | PHI | 32 hr | |
| Sep 1, 3:23 AM EDT | Small Craft Advisory | PHI | 41 hr | |
| Sep 1, 4:34 AM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 39 hr |
| Sep 1, 7:58 AM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 47 min |
| Sep 1, 8:39 AM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 39 min |
| Sep 1, 9:11 AM EDT | Special Marine Warning | PHI | 64 min | |
| Sep 1, 11:24 AM EDT | Areal Flood Advisory | PHI | Sussex, Warren | 3 hr |
| Sep 1, 4:04 PM EDT | Areal Flood Warning | PHI | Warren | 24 hr |
| Sep 1, 4:12 PM EDT | Flash Flood Warning | PHI | Hunterdon, Warren | 7 hr |
| Sep 1, 4:27 PM EDT | River Flood Warning | PHI | Morris, Somerset | 6 days |
| Sep 1, 4:27 PM EDT | River Flood Warning | PHI | Essex, Morris, Passaic | 8 days |
| Sep 1, 4:27 PM EDT | River Flood Warning | PHI | Essex, Morris, Passaic | 6 days |
| Sep 1, 4:27 PM EDT | River Flood Warning | PHI | Essex, Passaic | 21 days |
| Sep 1, 4:33 PM EDT | River Flood Warning | PHI | Morris, Passaic | 46 hr |
| Sep 1, 4:40 PM EDT | River Flood Warning | PHI | Hunterdon, Somerset | 36 hr |
| Sep 1, 4:40 PM EDT | River Flood Warning | PHI | Somerset | 22 hr |
| Sep 1, 4:40 PM EDT | River Flood Warning | PHI | Middlesex, Somerset | 42 hr |
| Sep 1, 4:40 PM EDT | River Flood Warning | PHI | Middlesex, Somerset | 48 hr |
| Sep 1, 4:41 PM EDT | River Flood Warning | PHI | Somerset | 61 hr |
| Sep 1, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 47 min |
| Sep 1, 5:26 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Salem | 9 hr |
| Sep 1, 5:33 PM EDT | Special Marine Warning | PHI | 27 min | |
| Sep 1, 5:34 PM EDT | Tornado Warning | PHI | Mercer | 26 min |
| Sep 1, 5:35 PM EDT | Tornado Warning | PHI | Cumberland, Salem | 25 min |
| Sep 1, 5:42 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Morris, Somerset, Warren | 10 hr |
| Sep 1, 5:57 PM EDT | Tornado Warning | PHI | Gloucester, Salem | 33 min |
| Sep 1, 5:57 PM EDT | Tornado Warning | PHI | Hunterdon, Mercer, Somerset | 33 min |
| Sep 1, 6:05 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 10 hr |
| Sep 1, 6:08 PM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 6 hr |
| Sep 1, 6:14 PM EDT | Special Marine Warning | PHI | 61 min | |
| Sep 1, 6:20 PM EDT | Tornado Warning | PHI | Hunterdon, Mercer, Somerset | 40 min |
| Sep 1, 6:22 PM EDT | Tornado Warning | PHI | Burlington, Camden, Gloucester | 23 min |
| Sep 1, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset | 61 min |
| Sep 1, 7:04 PM EDT | Tornado Warning | PHI | Burlington, Mercer | 26 min |
| Sep 1, 7:22 PM EDT | Tornado Warning | PHI | Hunterdon, Mercer | 11 min |
| Sep 1, 7:28 PM EDT | Tornado Warning | PHI | Mercer, Middlesex, Morris, Somerset | 47 min |
| Sep 1, 7:31 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Somerset | 4 hr |
| Sep 1, 7:44 PM EDT | Special Marine Warning | PHI | 61 min | |
| Sep 1, 6:19 AM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 116 min |
| Sep 1, 6:49 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 86 min |
| Sep 1, 12:07 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| Sep 1, 1:29 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh | 6 hr |
| Sep 1, 2:53 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 9 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery | 36 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 43 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 41 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Philadelphia | 39 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Berks | 24 hr |
| Sep 1, 4:02 PM EDT | River Flood Warning | PHI | Monroe | 24 hr |
| Sep 1, 4:10 PM EDT | River Flood Warning | PHI | Monroe | 19 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 25 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 24 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Carbon | 15 hr |
| Sep 1, 4:13 PM EDT | Tornado Warning | PHI | Chester | 32 min |
| Sep 1, 4:20 PM EDT | River Flood Warning | PHI | Montgomery | 22 hr |
| Sep 1, 4:21 PM EDT | River Flood Warning | PHI | Bucks | 29 hr |
| Sep 1, 4:42 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 6 hr |
| Sep 1, 5:07 PM EDT | River Flood Warning | PHI | Chester | 17 hr |
| Sep 1, 5:15 PM EDT | Tornado Warning | PHI | Delaware, Montgomery, Philadelphia | 30 min |
| Sep 1, 6:38 PM EDT | River Flood Warning | PHI | Chester, Delaware | 26 hr |
| Sep 1, 7:05 PM EDT | Flash Flood Warning | PHI | Bucks | 8 hr |
| Sep 1, 7:23 PM EDT | Areal Flood Warning | PHI | Berks, Lehigh | 14 hr |
| Sep 1, 7:53 PM EDT | River Flood Warning | PHI | Delaware | 13 hr |
Nearby
Tornado Warnings in New Jersey, 2021Tornado Warnings in Pennsylvania, 2021Every tornado warning in 2021Tornadoes in 2021
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.