Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 224, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2023, 2:08 PM EDT for 4 counties in New Jersey. It was in force for 52 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
- Jul 25, 2023, 2:08 PM EDT (18:08 UTC)
- Expired
- Jul 25, 2023, 3:00 PM EDT
- In force
- 52 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Mercer County, NJ, Middlesex County, NJ, Somerset County, NJ
The radar
The Philadelphia radar (KDIX), 62 km from the middle of the area, began a volume at 18:11 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 25, 2:11 PM EDT | TSTM WND DMG | Hillsborough Twp, NJ | 911 Call Center reports that several trees and wires were downed in Hillsborough Township. Time estimated from radar. |
| Jul 25, 2:25 PM EDT | TSTM WND GST 44 | Hillsboroughduke Njwxne, NJ | NJWxNet station gusted to 44mph. |
| Jul 25, 2:29 PM EDT | TSTM WND DMG | Montgomery Twp, NJ | 911 Call Center reports that several trees and wires were downed in Montgomery Township. Time 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 25, 12:13 PM EDT | Severe Thunderstorm Watch | SPC | 10 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.1 hours before the alert went out and 151 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
- 231 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 960 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 63 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.4
The text
As transmitted.
052
WUUS51 KPHI 251808
SVRPHI
NJC019-021-023-035-251900-
/O.NEW.KPHI.SV.W.0224.230725T1808Z-230725T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
208 PM EDT Tue Jul 25 2023
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southeastern Hunterdon County in northwestern New Jersey...
Northwestern Mercer County in central New Jersey...
Somerset County in northern New Jersey...
Central Middlesex County in northern New Jersey...
* Until 300 PM EDT.
* At 207 PM EDT, a severe thunderstorm was located over Belle Mead,
or 7 miles southwest of Somerville, moving east at 25 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
New Brunswick, Somerville, Somerset, Edison, Old Bridge, East
Brunswick, Bridgewater, South Brunswick, North Brunswick,
Middlesex, Princeton, Bound Brook, Manville, Jamesburg, Pennington,
Hopewell, Rocky Hill, Millstone, Skillman and Flagtown.
This includes the following highways...
New Jersey Turnpike near exit 10.
Interstate 287 in New Jersey between mile markers 1 and 18.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4031 7487 4059 7475 4063 7442 4060 7446
4061 7435 4037 7433
TIME...MOT...LOC 1807Z 260DEG 23KT 4048 7470
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB2 follow-up statements
427
WWUS51 KPHI 251825
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
225 PM EDT Tue Jul 25 2023
NJC019-021-023-035-251900-
/O.CON.KPHI.SV.W.0224.000000T0000Z-230725T1900Z/
Hunterdon NJ-Mercer NJ-Somerset NJ-Middlesex NJ-
225 PM EDT Tue Jul 25 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR SOUTHEASTERN HUNTERDON...NORTHWESTERN MERCER...SOMERSET AND
CENTRAL MIDDLESEX COUNTIES...
At 225 PM EDT, a severe thunderstorm was located over Millstone, or
near New Brunswick, moving east at 25 mph.
HAZARD...70 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to mobile
homes, roofs, and outbuildings.
Locations impacted include...
New Brunswick, Somerville, Somerset, Edison, Old Bridge, East
Brunswick, Bridgewater, South Brunswick, North Brunswick, Middlesex,
Princeton, Bound Brook, Manville, Hopewell, Rocky Hill, Millstone,
Skillman, Flagtown, Kingston and Dayton.
This includes the following highways...
New Jersey Turnpike near exit 10.
Interstate 287 in New Jersey between mile markers 1 and 18.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4035 7484 4059 7475 4063 7442 4060 7446
4061 7435 4037 7433
TIME...MOT...LOC 1825Z 260DEG 23KT 4050 7455
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
MLB889
WWUS51 KPHI 251854
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
254 PM EDT Tue Jul 25 2023
NJC019-021-023-035-251903-
/O.EXP.KPHI.SV.W.0224.000000T0000Z-230725T1900Z/
Hunterdon NJ-Mercer NJ-Somerset NJ-Middlesex NJ-
254 PM EDT Tue Jul 25 2023
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HUNTERDON...
NORTHWESTERN MERCER...SOMERSET AND CENTRAL MIDDLESEX COUNTIES WILL
EXPIRE AT 300 PM EDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
central, northern and northwestern New Jersey.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
Remember, a Severe Thunderstorm Warning still remains in effect for
portions of Somerset and Middlesex Counties until 3:45 PM EDT.
LAT...LON 4035 7484 4059 7475 4063 7442 4060 7446
4061 7435 4037 7433
TIME...MOT...LOC 1853Z 260DEG 23KT 4053 7433
$$
MLBThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 1:06 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 39 min |
| Jul 25, 1:21 PM EDT | Special Weather Statement | PHI | Hunterdon | 24 min |
| Jul 25, 1:27 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Somerset | 48 min |
| Jul 25, 1:38 PM EDT | Flash Flood Warning | PHI | Gloucester | 4 hr |
| Jul 25, 1:52 PM EDT | Special Marine Warning | PHI | 38 min | |
| Jul 25, 2:06 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 39 min |
| Jul 25, 2:20 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 55 min |
| Jul 25, 2:39 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset, Sussex | 51 min |
| Jul 25, 2:44 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Morris, Somerset | 2 hr |
| Jul 25, 2:45 PM EDT | Special Marine Warning | PHI | 60 min | |
| Jul 25, 2:53 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth, Somerset | 52 min |
| Jul 25, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer | 44 min |
| Jul 25, 3:24 PM EDT | Special Marine Warning | PHI | 96 min | |
| Jul 25, 3:27 PM EDT | Areal Flood Advisory | PHI | Middlesex, Somerset | 81 min |
| Jul 25, 3:40 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 50 min |
| Jul 25, 3:45 PM EDT | Special Marine Warning | PHI | 60 min | |
| Jul 25, 3:52 PM EDT | Severe Thunderstorm Warning | PHI | Cape May, Cumberland | 53 min |
| Jul 25, 3:57 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth | 3 hr |
| Jul 25, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 30 min |
| Jul 25, 4:12 PM EDT | Flash Flood Warning | PHI | Monmouth | 3 hr |
| Jul 25, 4:17 PM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 25, 4:50 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 25, 4:57 PM EDT | Areal Flood Advisory | PHI | Monmouth, Ocean | 2 hr |
| Jul 25, 5:09 PM EDT | Special Marine Warning | PHI | 66 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2023Every severe thunderstorm warning 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.