Alert archive / New Jersey / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 128, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 4, 2026, 6:37 PM EDT for Morris County, Sussex County, Warren County, New Jersey; Monroe County, Pennsylvania. It was in force for 68 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
- Jul 4, 2026, 6:37 PM EDT (22:37 UTC)
- Expired
- Jul 4, 2026, 7:45 PM EDT
- In force
- 68 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Monroe County, PA
The radar
The Philadelphia radar (KDIX), 132 km from the middle of the area, began a volume at 22:40 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 4, 6:49 PM EDT | TSTM WND DMG | Analomink, PA | Reports of trees, wires down, and buildings damaged around a campground in the East Stroudsburg Area. Time estimated from radar. |
| Jul 4, 6:52 PM EDT | TSTM WND DMG | 1 Ne Smithfield Twp, PA | Multiple trees down around Marshalls Creek. Time estimated by radar. |
| Jul 4, 6:55 PM EDT | TSTM WND DMG | 1 W Echo Lake, PA | Several trees down across Milford Rd near Middle Smithfield Elementary School. Time estimated by radar. |
| Jul 4, 6:55 PM EDT | TSTM WND DMG | 2 Wsw Echo Lake, PA | Several trees down along and around Frutchey Dr in Middle Smithfield Twp. Time estimated by radar. |
| Jul 4, 7:09 PM EDT | TSTM WND DMG | Frankford Twp, NJ | Several trees and wires down across Frankford Township. Time estimated by radar. |
| Jul 4, 7:09 PM EDT | TSTM WND DMG | Sandyston Twp, NJ | Several trees and wires down across Sandyston Township. Time estimated by radar. |
| Jul 4, 7:10 PM EDT | TSTM WND DMG | Blairstown Twp, NJ | Several trees and wires down across Blairstown. Time estimated by radar. |
| Jul 4, 7:15 PM EDT | TSTM WND DMG | Wantage Twp, NJ | Several trees and wires down across Wantage. Time estimated by 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 4, 3:28 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 10.6 hours before the alert went out and 157 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
- 392 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1531 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 65 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
395
WUUS51 KPHI 042237
SVRPHI
NJC027-037-041-PAC089-042345-
/O.NEW.KPHI.SV.W.0128.260704T2237Z-260704T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
637 PM EDT Sat Jul 4 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Morris County in northern New Jersey...
Sussex County in northwestern New Jersey...
Northeastern Warren County in northwestern New Jersey...
Northeastern Monroe County in northeastern Pennsylvania...
* Until 745 PM EDT.
* At 637 PM EDT, a severe thunderstorm was located near Alpine
Mountain, or 11 miles east of Mount Pocono, moving east at 40 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...
Newton, Montague, Dover, Hopatcong, Lincoln Park, Kinnelon, East
Stroudsburg, Boonton, Butler, Wharton, Rockaway, Blairstown, Mount
Arlington, Franklin, Mountain Lakes, Stanhope, Riverdale, Hamburg,
Ogdensburg, and Sussex.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 32 and 40, and
between mile markers 46 and 48.
Interstate 287 in New Jersey between mile markers 43 and 54.
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 4120 7436 4110 7449 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4103 7529 4125 7518 4125 7513
4115 7515 4114 7509 4108 7503 4109 7500
4116 7490 4129 7483 4135 7475 4136 7469
TIME...MOT...LOC 2237Z 287DEG 35KT 4112 7514
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse5 follow-up statements
430
WWUS51 KPHI 042250
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
650 PM EDT Sat Jul 4 2026
NJC027-037-041-PAC089-042345-
/O.CON.KPHI.SV.W.0128.000000T0000Z-260704T2345Z/
Morris NJ-Sussex NJ-Warren NJ-Monroe PA-
650 PM EDT Sat Jul 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN MORRIS...SUSSEX...NORTHEASTERN WARREN AND EAST
CENTRAL MONROE COUNTIES...
At 650 PM EDT, a severe thunderstorm was located over Echo Lake, or
16 miles west of Newton, moving east at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Newton, Montague, Dover, Hopatcong, Lincoln Park, Kinnelon, East
Stroudsburg, Boonton, Butler, Wharton, Rockaway, Blairstown, Mount
Arlington, Franklin, Mountain Lakes, Stanhope, Riverdale, Hamburg,
Ogdensburg, and Sussex.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 32 and 40, and
between mile markers 46 and 48.
Interstate 287 in New Jersey between mile markers 43 and 54.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 4120 7436 4110 7449 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4102 7523 4110 7515 4114 7509
4108 7503 4109 7500 4116 7490 4129 7483
4135 7475 4136 7469
TIME...MOT...LOC 2250Z 289DEG 30KT 4106 7506
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse176
WWUS51 KPHI 042305
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
705 PM EDT Sat Jul 4 2026
PAC089-042315-
/O.CAN.KPHI.SV.W.0128.000000T0000Z-260704T2345Z/
Monroe PA-
705 PM EDT Sat Jul 4 2026
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL MONROE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern and northwestern New Jersey...and northeastern Pennsylvania.
LAT...LON 4120 7436 4110 7449 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4099 7507 4110 7497 4109 7499
4118 7488 4129 7483 4135 7475 4136 7469
TIME...MOT...LOC 2305Z 287DEG 35KT 4102 7487
$$
NJC027-037-041-042345-
/O.CON.KPHI.SV.W.0128.000000T0000Z-260704T2345Z/
Morris NJ-Sussex NJ-Warren NJ-
705 PM EDT Sat Jul 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN MORRIS...SUSSEX AND NORTHEASTERN WARREN COUNTIES...
At 705 PM EDT, a severe thunderstorm was located near Greendell, or
near Newton, moving east at 40 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Newton, Montague, Dover, Hopatcong, Lincoln Park, Kinnelon, Boonton,
Butler, Wharton, Rockaway, Blairstown, Mount Arlington, Franklin,
Mountain Lakes, Stanhope, Riverdale, Hamburg, Ogdensburg, Sussex, and
Branchville.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 32 and 40, and
between mile markers 46 and 48.
Interstate 287 in New Jersey between mile markers 43 and 54.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Cloud to ground lightning is occurring with this storm. Move indoors
immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 4120 7436 4110 7449 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4099 7507 4110 7497 4109 7499
4118 7488 4129 7483 4135 7475 4136 7469
TIME...MOT...LOC 2305Z 287DEG 35KT 4102 7487
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse851
WWUS51 KPHI 042319
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
719 PM EDT Sat Jul 4 2026
NJC027-037-041-042345-
/O.CON.KPHI.SV.W.0128.000000T0000Z-260704T2345Z/
Morris NJ-Sussex NJ-Warren NJ-
719 PM EDT Sat Jul 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN MORRIS...SUSSEX AND NORTHEASTERN WARREN COUNTIES...
At 719 PM EDT, a severe thunderstorm was located over Ogdensburg, or
7 miles east of Newton, moving east at 45 mph.
HAZARD...60 mph wind gusts. This storm produced wind damage in
northern Monroe County Pennsylvania earlier.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Newton, Dover, Hopatcong, Lincoln Park, Kinnelon, Boonton, Butler,
Wharton, Rockaway, Mount Arlington, Franklin, Mountain Lakes,
Stanhope, Riverdale, Hamburg, Ogdensburg, Sussex, Branchville,
Andover, and Lake Mohawk.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 32 and 40, and
between mile markers 46 and 48.
Interstate 287 in New Jersey between mile markers 43 and 54.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4120 7436 4110 7449 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4096 7493 4133 7463
TIME...MOT...LOC 2319Z 274DEG 39KT 4106 7462
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse363
WWUS51 KPHI 042335
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
735 PM EDT Sat Jul 4 2026
NJC041-042345-
/O.CAN.KPHI.SV.W.0128.000000T0000Z-260704T2345Z/
Warren NJ-
735 PM EDT Sat Jul 4 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WARREN COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern and northwestern New Jersey.
LAT...LON 4120 7437 4111 7448 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4093 7471 4120 7438
TIME...MOT...LOC 2335Z 277DEG 30KT 4100 7444
$$
NJC027-037-042345-
/O.CON.KPHI.SV.W.0128.000000T0000Z-260704T2345Z/
Morris NJ-Sussex NJ-
735 PM EDT Sat Jul 4 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM EDT
FOR NORTHEASTERN MORRIS AND SOUTHEASTERN SUSSEX COUNTIES...
At 735 PM EDT, a severe thunderstorm was located over Green Pond, or
7 miles south of West Milford, moving east at 35 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Dover, Hopatcong, Lincoln Park, Kinnelon, Boonton, Butler, Wharton,
Rockaway, Mount Arlington, Mountain Lakes, Riverdale, Pequannock
Township, Lake Telemark, Green Pond, and White Meadow Lake.
This includes the following highways...
Interstate 80 in New Jersey between mile markers 33 and 40, and
between mile markers 47 and 48.
Interstate 287 in New Jersey between mile markers 43 and 54.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4120 7437 4111 7448 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4093 7471 4120 7438
TIME...MOT...LOC 2335Z 277DEG 30KT 4100 7444
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Gorse633
WWUS51 KPHI 042343
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
743 PM EDT Sat Jul 4 2026
NJC027-037-042352-
/O.EXP.KPHI.SV.W.0128.000000T0000Z-260704T2345Z/
Morris NJ-Sussex NJ-
743 PM EDT Sat Jul 4 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN MORRIS AND
SOUTHEASTERN SUSSEX COUNTIES WILL EXPIRE AT 745 PM EDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
northern and northwestern New Jersey.
LAT...LON 4120 7437 4111 7448 4104 7450 4105 7445
4102 7443 4100 7430 4090 7427 4091 7434
4085 7433 4093 7471 4120 7438
TIME...MOT...LOC 2342Z 287DEG 35KT 4098 7435
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 8:03 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth, Somerset | 57 min |
| Jul 3, 8:15 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 45 min |
| Jul 3, 8:21 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth, Ocean | 54 min |
| Jul 3, 8:24 PM EDT | Special Marine Warning | PHI | 96 min | |
| Jul 3, 8:31 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Ocean | 44 min |
| Jul 3, 9:03 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Ocean | 42 min |
| Jul 3, 9:20 PM EDT | Special Marine Warning | PHI | 67 min | |
| Jul 3, 9:29 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 12 min |
| Jul 4, 6:56 PM EDT | Special Marine Warning | PHI | 64 min | |
| Jul 4, 6:04 PM EDT | Severe Thunderstorm Warning | PHI | Monroe | 41 min |
| Jul 4, 7:09 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Monroe | 41 min |
| Jul 4, 7:44 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Chester | 61 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2026Severe Thunderstorm Warnings in Pennsylvania, 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.