Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023
Severe Thunderstorm Warning 222, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 25, 2023, 1:27 PM EDT for Bucks County, Pennsylvania; Hunterdon County, Mercer County, Somerset County, New Jersey. It was in force for 48 min. 5 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, 1:27 PM EDT (17:27 UTC)
- Expired
- Jul 25, 2023, 2:15 PM EDT
- In force
- 48 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Mercer County, NJ, Somerset County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 65 km from the middle of the area, began a volume at 17:27 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, 1:44 PM EDT | TSTM WND DMG | Sergeantsville, NJ | Trees and wires down in Delaware Township. Time estimated from radar. |
| Jul 25, 1:53 PM EDT | TSTM WND DMG | Raritan Twp, NJ | Trees and wires down in Raritan Township. Time estimated from radar. |
| Jul 25, 1:57 PM EDT | TSTM WND DMG | Ringoes, NJ | Trees and wires down in East Amwell Township. Time estimated from radar. |
| Jul 25, 2:07 PM EDT | TSTM WND DMG | 1 W Ringoes, NJ | Several trees down near the intersection of Rte 579 and Rte 604 in Ringoes. Time Estimated. |
| 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. |
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, 5.5 hours before the alert went out and 169 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.
261
WUUS51 KPHI 251727
SVRPHI
NJC019-021-035-PAC017-251815-
/O.NEW.KPHI.SV.W.0222.230725T1727Z-230725T1815Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
127 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...
North central Mercer County in central New Jersey...
Southwestern Somerset County in northern New Jersey...
North central Bucks County in southeastern Pennsylvania...
* Until 215 PM EDT.
* At 126 PM EDT, a severe thunderstorm was located over Erwinna, or
16 miles southeast of Easton, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to
roofs, siding, trees, and power lines is possible.
* Locations impacted include...
Byram, Flemington, Tinicum, Hopewell, Frenchtown, Rocky Hill,
Stockton, Skillman, Flagtown, Sergeantsville, Cloverhill, Belle
Mead, Erwinna, Lumberville, Sand Brook, White House Station,
Raritan and Heathcote.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
&&
LAT...LON 4038 7461 4039 7511 4054 7514 4063 7466
4039 7459
TIME...MOT...LOC 1726Z 261DEG 26KT 4049 7504
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB2 follow-up statements
679
WWUS51 KPHI 251737
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
137 PM EDT Tue Jul 25 2023
NJC019-021-035-PAC017-251815-
/O.CON.KPHI.SV.W.0222.000000T0000Z-230725T1815Z/
Hunterdon NJ-Mercer NJ-Somerset NJ-Bucks PA-
137 PM EDT Tue Jul 25 2023
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM EDT
FOR SOUTHEASTERN HUNTERDON...NORTH CENTRAL MERCER...SOUTHWESTERN
SOMERSET AND NORTH CENTRAL BUCKS COUNTIES...
At 137 PM EDT, a severe thunderstorm was located over Sand Brook, or
17 miles west of Somerville, moving east at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Byram, Flemington, Hopewell, Frenchtown, Rocky Hill, Stockton,
Skillman, Flagtown, Sergeantsville, Cloverhill, Belle Mead,
Lumberville, Sand Brook, Erwinna, White House Station, Raritan and
Heathcote.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4038 7461 4039 7508 4055 7507 4063 7466
4039 7459
TIME...MOT...LOC 1737Z 261DEG 26KT 4050 7494
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
MLB513
WWUS51 KPHI 251809
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
209 PM EDT Tue Jul 25 2023
NJC019-021-035-PAC017-251818-
/O.EXP.KPHI.SV.W.0222.000000T0000Z-230725T1815Z/
Hunterdon NJ-Mercer NJ-Somerset NJ-Bucks PA-
209 PM EDT Tue Jul 25 2023
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HUNTERDON...NORTH
CENTRAL MERCER...SOUTHWESTERN SOMERSET AND NORTH CENTRAL BUCKS
COUNTIES WILL EXPIRE AT 215 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...and southeastern
Pennsylvania.
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 Hunterdon, Mercer, and Somerset Counties until 3:00 PM
EDT.
LAT...LON 4038 7461 4039 7508 4055 7507 4063 7466
4039 7459
TIME...MOT...LOC 1808Z 261DEG 26KT 4053 7466
$$
MLBThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 25, 11:58 AM EDT | Special Weather Statement | PHI | Montgomery | 32 min |
| Jul 25, 12:07 PM EDT | Special Weather Statement | PHI | Berks | 23 min |
| Jul 25, 12:16 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Lehigh, Montgomery | 44 min |
| Jul 25, 12:31 PM EDT | Special Weather Statement | PHI | Berks | 29 min |
| Jul 25, 12:33 PM EDT | Special Weather Statement | PHI | Berks | 27 min |
| Jul 25, 12:37 PM EDT | Special Weather Statement | PHI | Carbon | 38 min |
| Jul 25, 12:47 PM EDT | Areal Flood Advisory | PHI | Bucks, Montgomery | 33 min |
| Jul 25, 12:56 PM EDT | Special Weather Statement | PHI | Northampton | 34 min |
| Jul 25, 1:00 PM EDT | Special Weather Statement | PHI | Berks | 30 min |
| Jul 25, 1:03 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 42 min |
| Jul 25, 1:06 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe, Northampton | 39 min |
| Jul 25, 1:10 PM EDT | Special Weather Statement | PHI | Delaware | 35 min |
| Jul 25, 1:12 PM EDT | Special Weather Statement | PHI | Monroe | 33 min |
| Jul 25, 1:20 PM EDT | Flash Flood Warning | PHI | Bucks, Montgomery | 5 hr |
| Jul 25, 1:27 PM EDT | Areal Flood Advisory | PHI | Berks | 3 hr |
| Jul 25, 1:37 PM EDT | Areal Flood Advisory | PHI | Carbon | 3 hr |
| Jul 25, 1:38 PM EDT | Flash Flood Warning | PHI | Delaware | 4 hr |
| Jul 25, 1:41 PM EDT | Areal Flood Advisory | PHI | Lehigh, Northampton | 3 hr |
| Jul 25, 1:42 PM EDT | Special Weather Statement | PHI | Philadelphia | 33 min |
| Jul 25, 1:49 PM EDT | Special Weather Statement | PHI | Chester | 26 min |
| Jul 25, 1:54 PM EDT | Flash Flood Warning | PHI | Delaware, Philadelphia | 4 hr |
| Jul 25, 1:55 PM EDT | Areal Flood Advisory | PHI | Monroe | 2 hr |
| Jul 25, 2:06 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 39 min |
| Jul 25, 2:14 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Montgomery | 46 min |
| Jul 25, 2:21 PM EDT | Areal Flood Advisory | PHI | Berks, Chester, Montgomery | 2 hr |
| Jul 25, 2:36 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Montgomery, Philadelphia | 39 min |
| Jul 25, 2:51 PM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 3 hr |
| Jul 25, 2:57 PM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| Jul 25, 3:06 PM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Montgomery | 95 min |
| Jul 25, 3:13 PM EDT | Flash Flood Warning | PHI | Chester | 4 hr |
| Jul 25, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Montgomery, Philadelphia | 44 min |
| Jul 25, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 39 min |
| Jul 25, 3:34 PM EDT | Flash Flood Warning | PHI | Chester, Montgomery | 3 hr |
| Jul 25, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery, Philadelphia | 30 min |
| Jul 25, 4:04 PM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Jul 25, 4:55 PM EDT | Flash Flood Warning | PHI | Chester | 118 min |
| Jul 25, 5:07 PM EDT | River Flood Warning | PHI | Chester | 6 hr |
| Jul 25, 1:21 PM EDT | Special Weather Statement | PHI | Hunterdon | 24 min |
| Jul 25, 1:52 PM EDT | Special Marine Warning | PHI | 38 min | |
| Jul 25, 2:08 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 52 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, 3:24 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, 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, 2023Severe Thunderstorm Warnings in Pennsylvania, 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.