Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 58, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 6, 2026, 6:59 PM EDT for 7 counties in New Jersey. It was in force for 61 min. 8 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
- Jun 6, 2026, 6:59 PM EDT (22:59 UTC)
- Expired
- Jun 6, 2026, 8:00 PM EDT
- In force
- 61 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Hunterdon County, NJ, Middlesex County, NJ, Monmouth County, NJ, Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ
The radar
The Philadelphia radar (KDIX), 86 km from the middle of the area, began a volume at 22:59 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 |
|---|---|---|---|
| Jun 6, 7:02 PM EDT | TSTM WND DMG | 1 Wnw Denville, NJ | NJ DOT - STMC: Downed Tree on NJ 10 Eastbound At In the vicinity of Mount Pleasant Tpke (Denville Twp), 2 right lanes of 3 lanes closed. Time estimated. |
| Jun 6, 7:04 PM EDT | TSTM WND GST 44 | 1 N Readington, NJ | AWOS station N519 Readington. |
| Jun 6, 7:05 PM EDT | TSTM WND DMG | 1 W Mountain Lakes, NJ | Pictures and a video received of several full sized mature oak trees blown down in Denville near the border with Mountain Lakes. Time estimated from radar. |
| Jun 6, 7:05 PM EDT | TSTM WND DMG | Boonton, NJ | Multiple trees and branches blown down in the Boonton and Mountain Lakes area. Time estimated from radar. |
| Jun 6, 7:05 PM EDT | TSTM WND DMG | Bridgewater, NJ | Multiple reports of trees down around Bridgewater. Time estimated from radar. |
| Jun 6, 7:06 PM EDT | TSTM WND DMG | Montville, NJ | Delayed report... Spotter sent in photos of several uprooted trees, one falling onto a house in the Montville area. Time estimated. |
| Jun 6, 7:07 PM EDT | TSTM WND DMG | 1 Ne Montville, NJ | NJ DOT - STMC: Downed Tree on I-287 Southbound North of Exit 47 - US 202 (Montville Twp), 2 right lanes of 3 lanes closed. Time estimated. |
| Jun 6, 7:10 PM EDT | TSTM WND DMG | Montville Twp, NJ | Several trees uprooted along Cheryl Road. 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 |
|---|---|---|---|
| Jun 6, 4:45 PM EDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 11.0 hours before the alert went out and 123 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
- 1811 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 70 m²/s²
- 0-3 km storm-relative helicity
- 124 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
474
WUUS51 KPHI 062259
SVRPHI
NJC019-023-025-027-035-037-041-070000-
/O.NEW.KPHI.SV.W.0058.260606T2259Z-260607T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
659 PM EDT Sat Jun 6 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Hunterdon County in northwestern New Jersey...
Morris County in northern New Jersey...
Central Sussex County in northwestern New Jersey...
East central Warren County in northwestern New Jersey...
Somerset County in northern New Jersey...
Northeastern Monmouth County in central New Jersey...
Middlesex County in northern New Jersey...
* Until 800 PM EDT.
* At 658 PM EDT, severe thunderstorms were located along a line
extending from near Highland Lake to near Mendham to Flemington,
moving east at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
New Brunswick, Perth Amboy, Long Branch, Morristown, Somerville,
Somerset, Edison, Middletown, Old Bridge, East Brunswick,
Bridgewater, South Brunswick, Sayreville, North Brunswick,
Carteret, Dover, Tinton Falls, Holmdel, Madison, and Hopatcong.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4030 7399 4048 7505 4122 7464 4122 7438
4104 7450 4105 7445 4102 7443 4100 7430
4090 7427 4091 7434 4075 7436 4067 7446
4065 7440 4060 7446 4060 7421 4047 7427
4041 7400 4048 7402 4048 7401 4047 7400
TIME...MOT...LOC 2258Z 274DEG 36KT 4113 7446 4078 7464 4049 7486
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper3 follow-up statements
929
WWUS51 KPHI 062325
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
725 PM EDT Sat Jun 6 2026
NJC037-041-062334-
/O.CAN.KPHI.SV.W.0058.000000T0000Z-260607T0000Z/
Sussex NJ-Warren NJ-
725 PM EDT Sat Jun 6 2026
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SUSSEX AND EAST
CENTRAL WARREN COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northern, central and northwestern New Jersey.
LAT...LON 4030 7399 4046 7489 4105 7448 4105 7445
4102 7441 4100 7430 4090 7427 4091 7434
4075 7436 4067 7446 4065 7441 4060 7446
4060 7421 4050 7426 4050 7428 4047 7427
4042 7404 4045 7401 4048 7401
TIME...MOT...LOC 2324Z 270DEG 36KT 4111 7414 4076 7433 4047 7455
$$
NJC019-023-025-027-035-070000-
/O.CON.KPHI.SV.W.0058.000000T0000Z-260607T0000Z/
Hunterdon NJ-Morris NJ-Somerset NJ-Monmouth NJ-Middlesex NJ-
725 PM EDT Sat Jun 6 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR EAST CENTRAL HUNTERDON...MORRIS...SOMERSET...NORTHEASTERN
MONMOUTH AND MIDDLESEX COUNTIES...
At 724 PM EDT, severe thunderstorms were located along a line
extending from Suffern to Millburn to near Millstone, moving east at
40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
New Brunswick, Perth Amboy, Long Branch, Morristown, Somerville,
Somerset, Edison, Middletown, Old Bridge, East Brunswick,
Bridgewater, South Brunswick, Sayreville, North Brunswick, Carteret,
Dover, Tinton Falls, Holmdel, Madison, and Middlesex.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4030 7399 4046 7489 4105 7448 4105 7445
4102 7441 4100 7430 4090 7427 4091 7434
4075 7436 4067 7446 4065 7441 4060 7446
4060 7421 4050 7426 4050 7428 4047 7427
4042 7404 4045 7401 4048 7401
TIME...MOT...LOC 2324Z 270DEG 36KT 4111 7414 4076 7433 4047 7455
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper552
WWUS51 KPHI 062340
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
740 PM EDT Sat Jun 6 2026
NJC019-027-062349-
/O.CAN.KPHI.SV.W.0058.000000T0000Z-260607T0000Z/
Hunterdon NJ-Morris NJ-
740 PM EDT Sat Jun 6 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL HUNTERDON AND
MORRIS COUNTIES IS CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northern and central New Jersey.
LAT...LON 4030 7399 4042 7463 4067 7446 4065 7441
4060 7446 4060 7433 4059 7428 4060 7421
4055 7425 4050 7426 4050 7428 4047 7427
4044 7420 4045 7418 4041 7400
TIME...MOT...LOC 2339Z 270DEG 36KT 4110 7395 4075 7414 4046 7436
$$
NJC023-025-035-070000-
/O.CON.KPHI.SV.W.0058.000000T0000Z-260607T0000Z/
Somerset NJ-Monmouth NJ-Middlesex NJ-
740 PM EDT Sat Jun 6 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR SOUTHEASTERN SOMERSET...NORTHEASTERN MONMOUTH AND MIDDLESEX
COUNTIES...
At 739 PM EDT, severe thunderstorms were located along a line
extending from near Nyack to Harrison to near Sayreville, moving east
at 40 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
New Brunswick, Perth Amboy, Long Branch, Somerset, Edison,
Middletown, Old Bridge, East Brunswick, Sayreville, North Brunswick,
Carteret, Tinton Falls, Holmdel, Middlesex, Red Bank, Bound Brook,
Matawan, Brownville, Navesink, and Society Hill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4030 7399 4042 7463 4067 7446 4065 7441
4060 7446 4060 7433 4059 7428 4060 7421
4055 7425 4050 7426 4050 7428 4047 7427
4044 7420 4045 7418 4041 7400
TIME...MOT...LOC 2339Z 270DEG 36KT 4110 7395 4075 7414 4046 7436
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper077
WWUS51 KPHI 062351
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
751 PM EDT Sat Jun 6 2026
NJC023-025-035-070001-
/O.EXP.KPHI.SV.W.0058.000000T0000Z-260607T0000Z/
Somerset NJ-Monmouth NJ-Middlesex NJ-
751 PM EDT Sat Jun 6 2026
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SOMERSET...
NORTHEASTERN MONMOUTH AND MIDDLESEX COUNTIES WILL EXPIRE AT 800 PM
EDT...
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northern and central New Jersey.
LAT...LON 4030 7399 4042 7463 4067 7446 4065 7441
4060 7446 4060 7433 4059 7428 4060 7421
4055 7425 4050 7426 4050 7428 4047 7427
4044 7420 4045 7418 4041 7400
TIME...MOT...LOC 2351Z 274DEG 36KT 4109 7383 4074 7402 4045 7424
$$
CooperThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 6, 5:23 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 67 min |
| Jun 6, 6:13 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren | 47 min |
| Jun 6, 6:17 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Somerset | 58 min |
| Jun 6, 7:03 PM EDT | Special Marine Warning | PHI | 57 min | |
| Jun 6, 7:05 PM EDT | Special Marine Warning | PHI | 115 min | |
| Jun 6, 7:19 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 2 more | 41 min |
| Jun 6, 7:36 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jun 6, 7:55 PM EDT | Special Marine Warning | PHI | 35 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2026Every severe thunderstorm warning in 2026
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.