Alert archive / New Jersey / Tornado Warnings in 2021
Tornado Warning 3, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Jul 1, 2021, 5:35 PM EDT for Mercer County, Monmouth County, Ocean County, New Jersey. It was in force for 25 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
- Jul 1, 2021, 5:35 PM EDT (21:35 UTC)
- Expired
- Jul 1, 2021, 6:00 PM EDT
- In force
- 25 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Mercer County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 26 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.
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 1, 12:46 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 9.6 hours before the alert went out and 157 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
- 286 J/kg
- Mixed-layer CIN
- -126 J/kg
- Mixed-layer LCL
- 978 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
304
WFUS51 KPHI 012135
TORPHI
NJC021-025-029-012200-
/O.NEW.KPHI.TO.W.0003.210701T2135Z-210701T2200Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
535 PM EDT Thu Jul 1 2021
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
North central Ocean County in southern New Jersey...
Southeastern Mercer County in central New Jersey...
Southwestern Monmouth County in central New Jersey...
* Until 600 PM EDT.
* At 535 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Imlaystown, or 12 miles east of Trenton, 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...
Allentown, Roosevelt, Imlaystown, Cassville, Clarksburg, Six Flags
Theme Park, Vista Center and West Freehold.
This includes Interstate 195 in New Jersey between mile markers 8 and
22.
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.
&&
LAT...LON 4016 7459 4022 7458 4026 7432 4008 7433
TIME...MOT...LOC 2135Z 273DEG 20KT 4019 7454
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Davis2 follow-up statements
206
WWUS51 KPHI 012143 RRA
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
543 PM EDT Thu Jul 1 2021
NJC021-012153-
/O.CAN.KPHI.TO.W.0003.000000T0000Z-210701T2200Z/
Mercer NJ-
543 PM EDT Thu Jul 1 2021
...THE TORNADO WARNING FOR SOUTHEASTERN MERCER COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central and southern New Jersey.
LAT...LON 4011 7433 4010 7433 4017 7454 4022 7453
4023 7451 4026 7432
TIME...MOT...LOC 2143Z 273DEG 20KT 4019 7448
$$
NJC025-029-012200-
/O.CON.KPHI.TO.W.0003.000000T0000Z-210701T2200Z/
Ocean NJ-Monmouth NJ-
543 PM EDT Thu Jul 1 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM EDT FOR NORTH
CENTRAL OCEAN AND SOUTHWESTERN MONMOUTH COUNTIES...
At 543 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Clarksburg, or 15 miles east of Trenton, 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...
Roosevelt, Imlaystown, Clarksburg, Six Flags Theme Park, Vista Center
and West Freehold.
This includes Interstate 195 in New Jersey between mile markers 11
and 22.
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.
&&
LAT...LON 4011 7433 4010 7433 4017 7454 4022 7453
4023 7451 4026 7432
TIME...MOT...LOC 2143Z 273DEG 20KT 4019 7448
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
Davis980
WWUS51 KPHI 012151
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
551 PM EDT Thu Jul 1 2021
NJC025-029-012201-
/O.EXP.KPHI.TO.W.0003.000000T0000Z-210701T2200Z/
Ocean NJ-Monmouth NJ-
551 PM EDT Thu Jul 1 2021
...THE TORNADO WARNING FOR NORTH CENTRAL OCEAN AND SOUTHWESTERN
MONMOUTH COUNTIES WILL EXPIRE AT 600 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central and southern New Jersey.
LAT...LON 4011 7433 4010 7433 4017 7454 4022 7453
4023 7451 4026 7432
TIME...MOT...LOC 2151Z 273DEG 20KT 4019 7442
$$
DavisThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 30, 8:37 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 38 min |
| Jun 30, 8:56 PM EDT | Special Marine Warning | PHI | 94 min | |
| Jun 30, 9:05 PM EDT | Special Weather Statement | PHI | Somerset | 40 min |
| Jun 30, 9:21 PM EDT | Special Weather Statement | PHI | Salem | 39 min |
| Jun 30, 9:49 PM EDT | Special Weather Statement | PHI | Monmouth | 26 min |
| Jun 30, 9:51 PM EDT | Special Marine Warning | PHI | 60 min | |
| Jul 1, 2:58 AM EDT | Small Craft Advisory | PHI | 17 hr | |
| Jul 1, 1:10 PM EDT | Special Weather Statement | PHI | Monmouth | 50 min |
| Jul 1, 1:16 PM EDT | Special Weather Statement | PHI | Atlantic | 29 min |
| Jul 1, 1:28 PM EDT | Special Marine Warning | PHI | 62 min | |
| Jul 1, 1:31 PM EDT | Special Weather Statement | PHI | Cumberland | 29 min |
| Jul 1, 4:21 PM EDT | Special Marine Warning | PHI | 114 min | |
| Jul 1, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Salem and 1 more | 48 min |
| Jul 1, 4:55 PM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland, Salem | 80 min |
| Jul 1, 4:59 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more | 46 min |
| Jul 1, 5:02 PM EDT | Tornado Warning | PHI | Burlington, Mercer | 28 min |
| Jul 1, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 5 more | 93 min |
| Jul 1, 5:40 PM EDT | Special Marine Warning | PHI | 65 min | |
| Jul 1, 5:46 PM EDT | Special Marine Warning | PHI | 119 min | |
| Jul 1, 6:13 PM EDT | Special Marine Warning | PHI | 92 min |
Nearby
Tornado Warnings in New Jersey, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.