Alert archive / New Jersey / Tornado Warnings in 2023
Tornado Warning 23, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this tornado warning at Jul 16, 2023, 4:38 AM EDT for Hunterdon County, Somerset County, New Jersey; Bucks County, Pennsylvania. It was in force for 37 min. 1 report 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 16, 2023, 4:38 AM EDT (08:38 UTC)
- Expired
- Jul 16, 2023, 5:15 AM EDT
- In force
- 37 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
Counties Hunterdon County, NJ, Somerset County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 72 km from the middle of the area, began a volume at 08:38 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Jul 16, 4:43 AM EDT | TSTM WND DMG | Clinton, NJ | Delayed report... Picture received of trees snapped, wires down and laying across roadway in Clinton. Time estimated from radar. |
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 00:00Z, 8.6 hours before the alert went out and 180 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
- 1061 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 624 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 29 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.0
The text
As transmitted.
146
WFUS51 KPHI 160838
TORPHI
NJC019-035-PAC017-160915-
/O.NEW.KPHI.TO.W.0023.230716T0838Z-230716T0915Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
438 AM EDT Sun Jul 16 2023
The National Weather Service in Mount Holly NJ has issued a
* Tornado Warning for...
Central Hunterdon County in northwestern New Jersey...
West central Somerset County in northern New Jersey...
Northeastern Bucks County in southeastern Pennsylvania...
* Until 515 AM EDT.
* At 438 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Stockton, or 17 miles northwest of Trenton, moving
northeast at 20 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...
Flemington, High Bridge, Clinton, New Hope, Glen Gardner, Lebanon,
Stockton, Sergeantsville, Cloverhill, Annandale, White House
Station, Lumberville, Sand Brook, Raritan and Lambertville.
This includes Interstate 78 in New Jersey between mile markers 13 and
20.
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 4034 7499 4037 7505 4070 7496 4057 7465
TIME...MOT...LOC 0838Z 209DEG 19KT 4042 7497
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
SFJ2 follow-up statements
757
WWUS51 KPHI 160845
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
445 AM EDT Sun Jul 16 2023
PAC017-160855-
/O.CAN.KPHI.TO.W.0023.000000T0000Z-230716T0915Z/
Bucks PA-
445 AM EDT Sun Jul 16 2023
...THE TORNADO WARNING FOR NORTHEASTERN BUCKS COUNTY IS CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
LAT...LON 4042 7492 4045 7500 4070 7496 4057 7465
TIME...MOT...LOC 0845Z 208DEG 20KT 4048 7493
$$
NJC019-035-160915-
/O.CON.KPHI.TO.W.0023.000000T0000Z-230716T0915Z/
Hunterdon NJ-Somerset NJ-
445 AM EDT Sun Jul 16 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 AM EDT FOR EASTERN
HUNTERDON AND WEST CENTRAL SOMERSET COUNTIES...
At 445 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Sand Brook, or 18 miles west of Somerville, moving
northeast 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...
Flemington, High Bridge, Clinton, Glen Gardner, Lebanon, Annandale,
Sergeantsville, White House Station, Sand Brook and Raritan.
This includes Interstate 78 in New Jersey between mile markers 14 and
20.
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 4042 7492 4045 7500 4070 7496 4057 7465
TIME...MOT...LOC 0845Z 208DEG 20KT 4048 7493
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
SFJ172
WWUS51 KPHI 160906
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
506 AM EDT Sun Jul 16 2023
NJC035-160916-
/O.CAN.KPHI.TO.W.0023.000000T0000Z-230716T0915Z/
Somerset NJ-
506 AM EDT Sun Jul 16 2023
...THE TORNADO WARNING FOR WEST CENTRAL SOMERSET COUNTY IS
CANCELLED...
The tornadic thunderstorm which prompted the warning has moved out
of the warned area. Therefore, the warning has been cancelled.
LAT...LON 4059 7473 4054 7484 4057 7489 4066 7488
4062 7476 4060 7472
TIME...MOT...LOC 0906Z 212DEG 20KT 4059 7483
$$
NJC019-160915-
/O.CON.KPHI.TO.W.0023.000000T0000Z-230716T0915Z/
Hunterdon NJ-
506 AM EDT Sun Jul 16 2023
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 AM EDT FOR EAST
CENTRAL HUNTERDON COUNTY...
At 506 AM EDT, a severe thunderstorm capable of producing a tornado
was located near White House Station, or 11 miles west of Somerville,
moving northeast 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...
Lebanon, White House Station and Annandale.
This includes Interstate 78 in New Jersey between mile markers 19 and
20.
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 4059 7473 4054 7484 4057 7489 4066 7488
4062 7476 4060 7472
TIME...MOT...LOC 0906Z 212DEG 20KT 4059 7483
TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 16, 2:22 AM EDT | Special Marine Warning | PHI | 53 min | |
| Jul 16, 2:47 AM EDT | Special Weather Statement | PHI | Gloucester, Salem | 28 min |
| Jul 16, 3:08 AM EDT | Special Marine Warning | PHI | 42 min | |
| Jul 16, 3:40 AM EDT | Flash Flood Warning | PHI | Sussex, Warren | 7 hr |
| Jul 16, 4:05 AM EDT | Flash Flood Warning | PHI | Hunterdon, Warren | 6 hr |
| Jul 16, 4:14 AM EDT | Special Weather Statement | PHI | Hunterdon | 31 min |
| Jul 16, 4:50 AM EDT | Special Weather Statement | PHI | Burlington, Ocean | 25 min |
| Jul 16, 5:07 AM EDT | Tornado Warning | PHI | Hunterdon, Morris, Somerset | 38 min |
| Jul 16, 5:13 AM EDT | Flash Flood Warning | PHI | Sussex, Warren | 4 hr |
| Jul 16, 5:16 AM EDT | Special Weather Statement | PHI | Ocean | 29 min |
| Jul 16, 5:26 AM EDT | Flash Flood Warning | PHI | Hunterdon, Morris, Sussex, Warren | 4 hr |
| Jul 16, 5:31 AM EDT | Tornado Warning | PHI | Morris, Somerset, Sussex | 29 min |
| Jul 16, 5:44 AM EDT | Special Marine Warning | PHI | 61 min | |
| Jul 16, 5:45 AM EDT | Special Weather Statement | PHI | Monmouth | 30 min |
| Jul 16, 5:58 AM EDT | Tornado Warning | PHI | Morris | 32 min |
| Jul 16, 7:52 AM EDT | Special Marine Warning | PHI | 53 min | |
| Jul 16, 8:40 AM EDT | Special Marine Warning | PHI | 47 min | |
| Jul 16, 10:54 AM EDT | Areal Flood Warning | PHI | Warren | 5 hr |
| Jul 16, 11:08 AM EDT | Flash Flood Warning | PHI | Gloucester, Salem | 3 hr |
| Jul 16, 11:36 AM EDT | Flash Flood Warning | PHI | Middlesex, Somerset | 3 hr |
| Jul 16, 12:22 PM EDT | Areal Flood Advisory | PHI | Mercer | 3 hr |
| Jul 16, 12:26 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 3 hr |
| Jul 16, 1:47 PM EDT | Areal Flood Advisory | PHI | Gloucester, Salem | 80 min |
| Jul 16, 1:50 PM EDT | Special Marine Warning | PHI | 85 min | |
| Jul 16, 2:20 PM EDT | Areal Flood Advisory | PHI | Middlesex, Somerset | 72 min |
| Jul 16, 2:42 PM EDT | Special Weather Statement | PHI | Cape May | 48 min |
| Jul 16, 3:09 PM EDT | Special Marine Warning | PHI | 51 min | |
| Jul 16, 6:17 PM EDT | Areal Flood Warning | PHI | Warren | 10 hr |
| Jul 16, 6:19 PM EDT | Areal Flood Warning | PHI | Warren | 10 hr |
| Jul 15, 8:37 PM EDT | Areal Flood Advisory | PHI | Carbon | 19 min |
| Jul 15, 8:44 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 30 min |
| Jul 15, 8:56 PM EDT | Flash Flood Warning | PHI | Carbon | 95 min |
| Jul 16, 12:50 AM EDT | Special Weather Statement | PHI | Berks | 25 min |
| Jul 16, 1:41 AM EDT | Special Weather Statement | PHI | Carbon, Lehigh | 34 min |
| Jul 16, 2:12 AM EDT | Special Weather Statement | PHI | Carbon, Lehigh, Monroe | 33 min |
| Jul 16, 2:43 AM EDT | Flash Flood Warning | PHI | Carbon, Lehigh, Monroe, Northampton | 4 hr |
| Jul 16, 9:12 AM EDT | Flash Flood Warning | PHI | Chester | 2 hr |
| Jul 16, 9:40 AM EDT | Flash Flood Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Jul 16, 9:53 AM EDT | Tornado Warning | PHI | Montgomery, Philadelphia | 37 min |
| Jul 16, 6:44 PM EDT | Areal Flood Advisory | PHI | Bucks | 90 min |
Nearby
Tornado Warnings in New Jersey, 2023Tornado Warnings in Pennsylvania, 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.