Alert archive / New Jersey / Tornado Warnings in 2023
Tornado Warning 1, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Feb 21, 2023, 3:40 PM EST for Mercer County, Middlesex County, Monmouth County, New Jersey. It was in force for 22 min. 9 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
- Feb 21, 2023, 3:40 PM EST (20:40 UTC)
- Expired
- Feb 21, 2023, 4:02 PM EST
- In force
- 22 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 38 km from the middle of the area, began a volume at 20:43 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 |
|---|---|---|---|
| Feb 21, 3:40 PM EST | TSTM WND DMG | 1 Ese Lawrence Twp, NJ | ROUTE 1 CLOSED AT INTERSECTION OF FRANKLIN CORNER ROAD DUE TO POWER LINES DOWN. |
| Feb 21, 3:40 PM EST | HAIL 0.5 | 1 Ne Hamilton Square, NJ | |
| Feb 21, 3:40 PM EST | HAIL 0.75 | Hamilton Square, NJ | |
| Feb 21, 3:43 PM EST | HAIL 0.5 | 1 Ne Mercerville, NJ | REPORT FROM MPING: HALF-INCH (0.50 IN.). |
| Feb 21, 3:44 PM EST | HAIL 0.5 | 1 W West Windsor Twp., NJ | REPORT FROM MPING: HALF-INCH (0.50 IN.). |
| Feb 21, 3:45 PM EST | TSTM WND DMG | 2 Nne Windsor, NJ | TREE DAMAGE REPORTED IN RESIDENTIAL AREAS OF EAST WINDSOR TWP NEAR WAYNE WAY & DORCHESTER DRIVE; CHESTNUT DRIVE & GLEN OAK; AND ELM DRIVE & PRIMROSE LANE. THIS AREA WAS DOWNSTREAM AND TO THE RIGHT OF A TORNADO AND WAS LIKELY CAUSED BY STRONG RFD WINDS. TIME ES |
| Feb 21, 3:45 PM EST | HAIL 0.5 | 1 N Hamilton Square, NJ | REPORT FROM MPING: HALF-INCH (0.50 IN.). |
| Feb 21, 3:46 PM EST | HAIL 0.5 | 2 E Windsor, NJ | REPORT FROM MPING: HALF-INCH (0.50 IN.). |
| Feb 21, 4:01 PM EST | HAIL 0.5 | 1 E Twin Rivers, NJ | REPORT FROM MPING: HALF-INCH (0.50 IN.). |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 8.7 hours before the alert went out and 162 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 565 m above ground
- 0-6 km bulk shear
- 67 kt
- 0-1 km storm-relative helicity
- 10 m²/s²
- 0-3 km storm-relative helicity
- 148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
412
WFUS51 KPHI 212040
TORPHI
NJC021-023-025-212115-
/O.NEW.KPHI.TO.W.0001.230221T2040Z-230221T2115Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
340 PM EST Tue Feb 21 2023
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
Southeastern Mercer County in central New Jersey...
West central Monmouth County in central New Jersey...
Southwestern Middlesex County in northern New Jersey...
* Until 415 PM EST.
* At 340 PM EST, a severe thunderstorm capable of producing a tornado
was located over Edinburg, or 7 miles east of Trenton, moving east
at 45 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...
Hightstown, Cranbury, Roosevelt, Mercerville-Hamilton Square,
Edinburg, Windsor, Twin Rivers, Clearbrook Park, Princeton Junction
and Concordia.
This includes the following highways...
New Jersey Turnpike near exit 8A.
Interstate 195 in New Jersey between mile markers 11 and 12.
Interstate 295 in New Jersey between mile markers 64 and 68.
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 4024 7473 4033 7469 4030 7438 4017 7451
TIME...MOT...LOC 2040Z 286DEG 39KT 4027 7462
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
PO2 follow-up statements
364
WWUS51 KPHI 212051
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
351 PM EST Tue Feb 21 2023
NJC021-023-025-212115-
/O.CON.KPHI.TO.W.0001.000000T0000Z-230221T2115Z/
Mercer NJ-Monmouth NJ-Middlesex NJ-
351 PM EST Tue Feb 21 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 415 PM EST FOR EAST
CENTRAL MERCER...WEST CENTRAL MONMOUTH AND SOUTH CENTRAL MIDDLESEX
COUNTIES...
At 351 PM EST, a severe thunderstorm capable of producing a tornado
was located over Twin Rivers, or 13 miles east of Trenton, moving
east at 35 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Hightstown, Cranbury, Roosevelt, Twin Rivers and Windsor.
This includes the following highways...
New Jersey Turnpike near exit 8A.
Interstate 195 in New Jersey near mile marker 12.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
&&
LAT...LON 4022 7459 4030 7458 4030 7438 4017 7451
TIME...MOT...LOC 2051Z 283DEG 32KT 4025 7450
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
PO356
WWUS51 KPHI 212102
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
402 PM EST Tue Feb 21 2023
NJC021-023-025-212112-
/O.CAN.KPHI.TO.W.0001.000000T0000Z-230221T2115Z/
Mercer NJ-Monmouth NJ-Middlesex NJ-
402 PM EST Tue Feb 21 2023
...THE TORNADO WARNING FOR EAST CENTRAL MERCER...WEST CENTRAL
MONMOUTH AND SOUTH CENTRAL MIDDLESEX COUNTIES IS CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.
Remember, a Severe Thunderstorm Warning still remains in effect for
Monmouth County.
LAT...LON 4022 7459 4030 7458 4030 7438 4017 7451
TIME...MOT...LOC 2100Z 286DEG 39KT 4022 7435
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 1:59 PM EST | Special Weather Statement | PHI | Salem | 31 min |
| Feb 21, 2:02 PM EST | Special Marine Warning | PHI | 58 min | |
| Feb 21, 2:21 PM EST | Special Weather Statement | PHI | Cumberland | 39 min |
| Feb 21, 2:30 PM EST | Special Weather Statement | PHI | Atlantic, Cumberland | 45 min |
| Feb 21, 2:39 PM EST | Special Marine Warning | PHI | 66 min | |
| Feb 21, 2:47 PM EST | Special Weather Statement | PHI | Hunterdon | 43 min |
| Feb 21, 2:48 PM EST | Special Weather Statement | PHI | Burlington, Ocean | 27 min |
| Feb 21, 2:56 PM EST | Special Marine Warning | PHI | 53 min | |
| Feb 21, 3:02 PM EST | Special Weather Statement | PHI | Cape May | 28 min |
| Feb 21, 3:15 PM EST | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 45 min |
| Feb 21, 4:00 PM EST | Severe Thunderstorm Warning | PHI | Monmouth | 13 min |
| Feb 21, 4:12 PM EST | Special Weather Statement | PHI | Sussex, Warren | 33 min |
| Feb 21, 4:17 PM EST | Special Marine Warning | PHI | 58 min | |
| Feb 21, 4:42 PM EST | Severe Thunderstorm Warning | PHI | Ocean | 27 min |
| Feb 21, 4:52 PM EST | Special Weather Statement | PHI | Morris | 23 min |
| Feb 21, 4:53 PM EST | Special Marine Warning | PHI | 54 min |
Nearby
Tornado Warnings in New Jersey, 2023Every tornado warning in 2023Tornadoes 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.