Alert archive / New Jersey / Tornado Warnings in 2021
Tornado Warning 24, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Jul 29, 2021, 6:44 PM EDT for Mercer County, Monmouth County, Ocean County, New Jersey. It was in force for 46 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, 2021, 6:44 PM EDT (22:44 UTC)
- Expired
- Jul 29, 2021, 7:30 PM EDT
- In force
- 46 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 1.0 in
Counties Mercer County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 28 km from the middle of the area, began a volume at 22:48 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, 6:48 PM EDT | TSTM WND DMG | 1 Se Robbinsville Twp., NJ | LOTS OF TREE BRANCHES DOWN AND POWER IS OUT IN ROBBINSVILLE NORTH OF 130. TIME ESTIMATED FROM RADAR. |
| Jul 29, 6:56 PM EDT | TORNADO | Windsor, NJ | THE WINDSOR-ROBBINSVILLE TOWNSHIP TORNADO BEGAN ON ROUTE 130 JUST SOUTH OF THE TOWN OF WINDSOR NEAR THE ASSUNPINK CREEK. A FEW HARDWOOD TREES WERE UPROOTED ALONG THE HIGHWAY NEAR THE CHESTNUT MONTESSORI. THE BUILDING LOST A PORTION OF ITS ROOFING MATERIAL AND |
| Jul 29, 7:05 PM EDT | FUNNEL CLOUD | 2 Ssw Twin Rivers, NJ | PHOTO FROM TWITTER OF A FUNNEL CLOUD SOUTHEAST OF EAST WINDSOR. PROBABLE TORNADO. TIME ESTIMATED FROM RADAR. |
| Jul 29, 7:05 PM EDT | TSTM WND DMG | 1 E Windsor, NJ | NUMEROUS TREES DOWN ON VOELBEL ROAD AND PERRINEVILLE ROAD. POSSIBLE TORNADO. TIMES 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, 2:23 PM EDT | Tornado Watch | SPC | 8 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.7 hours before the alert went out and 154 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
- 54 J/kg
- Mixed-layer CIN
- -32 J/kg
- Mixed-layer LCL
- 823 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 65 m²/s²
- 0-3 km storm-relative helicity
- 127 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
873
WFUS51 KPHI 292244
TORPHI
NJC021-025-029-292330-
/O.NEW.KPHI.TO.W.0024.210729T2244Z-210729T2330Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
644 PM EDT Thu Jul 29 2021
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
Northwestern Ocean County in southern New Jersey...
Southeastern Mercer County in central New Jersey...
Southwestern Monmouth County in central New Jersey...
* Until 730 PM EDT.
* At 644 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Edinburg, or 7 miles east of Trenton, moving
southeast at 25 mph.
HAZARD...Tornado and quarter size hail.
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...
Trenton, Jackson, Howell, Hightstown, Allentown, Roosevelt,
Cassville, Adelphia, Clarksburg, Vista Center, Edinburg, White
Horse, Windsor, Twin Rivers, Six Flags Theme Park, Imlaystown,
Mercerville-Hamilton Square, Cream Ridge, Freewood Acres and
Jacksons Mills.
This includes the following highways...
New Jersey Turnpike between exits 8 and 8A.
Interstate 195 in New Jersey between mile markers 1 and 28.
Interstate 295 in New Jersey between mile markers 61 and 67.
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.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4002 7430 4020 7475 4031 7468 4027 7448
4025 7448 4026 7444 4021 7419
TIME...MOT...LOC 2244Z 294DEG 22KT 4024 7462
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
Fitzsimmons1 follow-up statement
528
WWUS51 KPHI 292300
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
700 PM EDT Thu Jul 29 2021
NJC021-025-029-292330-
/O.CON.KPHI.TO.W.0024.000000T0000Z-210729T2330Z/
Ocean NJ-Mercer NJ-Monmouth NJ-
700 PM EDT Thu Jul 29 2021
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 730 PM EDT FOR NORTH
CENTRAL OCEAN...SOUTHEASTERN MERCER AND SOUTHWESTERN MONMOUTH
COUNTIES...
At 659 PM EDT, a severe thunderstorm capable of producing a tornado
was located over Windsor, or 10 miles east of Trenton, moving east at
20 mph.
HAZARD...Tornado and quarter size hail.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Jackson, Howell, Hightstown, Allentown, Roosevelt, Cassville,
Adelphia, Clarksburg, Vista Center, Windsor, Six Flags Theme Park,
Imlaystown, Freewood Acres, Jacksons Mills, Twin Rivers and West
Freehold.
This includes the following highways...
New Jersey Turnpike between exits 8 and 8A.
Interstate 195 in New Jersey between mile markers 6 and 28.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 4019 7464 4028 7459 4026 7448 4025 7448
4026 7445 4021 7419 4005 7428
TIME...MOT...LOC 2259Z 291DEG 16KT 4023 7457
TORNADO...RADAR INDICATED
HAIL...1.00IN
$$
FitzsimmonsThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 3:33 AM EDT | Small Craft Advisory | PHI | 20 hr | |
| Jul 29, 1:33 PM EDT | Special Marine Warning | PHI | 42 min | |
| Jul 29, 2:53 PM EDT | Special Marine Warning | PHI | 100 min | |
| Jul 29, 4:26 PM EDT | Special Weather Statement | PHI | Morris | 34 min |
| Jul 29, 4:30 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 45 min |
| Jul 29, 4:57 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Sussex, Warren | 3 hr |
| Jul 29, 5:01 PM EDT | Special Weather Statement | PHI | Morris | 29 min |
| Jul 29, 5:03 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 42 min |
| Jul 29, 5:08 PM EDT | Tornado Warning | PHI | Hunterdon | 37 min |
| Jul 29, 5:27 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Morris, Somerset | 3 hr |
| Jul 29, 5:32 PM EDT | Flash Flood Warning | PHI | Warren | 2 hr |
| Jul 29, 5:32 PM EDT | Tornado Warning | PHI | Hunterdon | 28 min |
| Jul 29, 5:51 PM EDT | Tornado Warning | PHI | Hunterdon, Mercer | 24 min |
| Jul 29, 5:58 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Somerset | 3 hr |
| Jul 29, 6:06 PM EDT | Tornado Warning | PHI | Burlington, Hunterdon, Mercer, Middlesex, Monmouth | 39 min |
| Jul 29, 6:45 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 45 min |
| Jul 29, 6:56 PM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Monmouth, Ocean, Somerset | 4 hr |
| Jul 29, 7:07 PM EDT | Tornado Warning | PHI | Burlington | 23 min |
| Jul 29, 7:12 PM EDT | Flash Flood Warning | PHI | Burlington | 4 hr |
| Jul 29, 7:18 PM EDT | Tornado Warning | PHI | Mercer, Middlesex, Monmouth, Ocean | 27 min |
| Jul 29, 7:25 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 50 min |
| Jul 29, 7:28 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 47 min |
| Jul 29, 7:52 PM EDT | Special Marine Warning | PHI | 113 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.