Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 174, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 15, 2026, 4:44 PM EDT for Warren County, New Jersey; Carbon County, Monroe County, Northampton County, Pennsylvania. It was in force for 30 min. 2 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 15, 2026, 4:44 PM EDT (20:44 UTC)
- Expired
- Jul 15, 2026, 5:14 PM EDT
- In force
- 30 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 136 km from the middle of the area, began a volume at 20:46 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 15, 4:48 PM EDT | TSTM WND DMG | Polk Twp, PA | 2 trees down on wires (time estimated from radar). |
| Jul 15, 5:15 PM EDT | TSTM WND DMG | Lower Towamensing Twp, PA | Trees down (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 12:00Z, 8.7 hours before the alert went out and 219 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
- 915 J/kg
- Mixed-layer CIN
- -362 J/kg
- Mixed-layer LCL
- 1305 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 117 m²/s²
- 0-3 km storm-relative helicity
- 156 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
335
WUUS51 KPHI 152044
SVRPHI
NJC041-PAC025-089-095-152130-
/O.NEW.KPHI.SV.W.0174.260715T2044Z-260715T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
444 PM EDT Wed Jul 15 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
West central Warren County in northwestern New Jersey...
East central Carbon County in northeastern Pennsylvania...
Southwestern Monroe County in northeastern Pennsylvania...
Northampton County in eastern Pennsylvania...
* Until 530 PM EDT.
* At 443 PM EDT, a severe thunderstorm was located over Penn Forest
Reservoir, or 10 miles northeast of Lehighton, moving southeast 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...
Easton, Bethlehem, Forks, Wilson, Nazareth, Bangor, Jim Thorpe, Pen
Argyl, Wind Gap, Bath, Belvidere, Harmony, Belfast, West Easton,
Tatamy, East Bangor, Steuben, Glendon, Brodheadsville, and
Kunkletown.
This includes the following highways...
Northeast Extension between mile markers 79 and 89.
Interstate 78 in Pennsylvania between mile markers 71 and 76.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4092 7573 4106 7559 4086 7504 4059 7527
TIME...MOT...LOC 2043Z 309DEG 31KT 4095 7559
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper2 follow-up statements
186
WWUS51 KPHI 152105
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
505 PM EDT Wed Jul 15 2026
NJC041-PAC025-089-095-152130-
/O.CON.KPHI.SV.W.0174.000000T0000Z-260715T2130Z/
Warren NJ-Carbon PA-Monroe PA-Northampton PA-
505 PM EDT Wed Jul 15 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR WEST CENTRAL WARREN...EAST CENTRAL CARBON...SOUTHWESTERN MONROE
AND NORTHAMPTON COUNTIES...
At 505 PM EDT, a severe thunderstorm was located near Rossland, or 13
miles northwest of Easton, moving southeast at 35 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Easton, Bethlehem, Forks, Wilson, Nazareth, Bangor, Pen Argyl, Wind
Gap, Bath, Belvidere, Harmony, Belfast, West Easton, Tatamy, East
Bangor, Steuben, Glendon, Brodheadsville, Kunkletown, and Gilbert.
This includes Interstate 78 in Pennsylvania between mile markers 71
and 76.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4085 7558 4098 7542 4086 7504 4059 7527
TIME...MOT...LOC 2105Z 309DEG 31KT 4083 7539
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper196 WWUS51 KPHI 152114 SVSPHI Severe Weather Statement National Weather Service Mount Holly NJ 514 PM EDT Wed Jul 15 2026 NJC041-PAC025-089-095-152124- /O.CAN.KPHI.SV.W.0174.000000T0000Z-260715T2130Z/ Warren NJ-Carbon PA-Monroe PA-Northampton PA- 514 PM EDT Wed Jul 15 2026 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL WARREN...EAST CENTRAL CARBON...SOUTHWESTERN MONROE AND NORTHAMPTON COUNTIES IS CANCELLED... 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 has been cancelled. LAT...LON 4085 7558 4098 7542 4086 7504 4059 7527 TIME...MOT...LOC 2112Z 309DEG 31KT 4078 7531 $$ Cooper
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 4:24 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Sussex | 36 min |
| Jul 15, 4:35 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset, Sussex, Warren | 25 min |
| Jul 15, 4:59 PM EDT | Severe Thunderstorm Warning | PHI | Morris, Somerset | 31 min |
| Jul 15, 5:27 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 33 min |
| Jul 15, 5:51 PM EDT | Special Marine Warning | PHI | 54 min | |
| Jul 15, 4:51 PM EDT | Severe Thunderstorm Warning | PHI | Carbon, Lehigh, Northampton | 39 min |
Nearby
Severe Thunderstorm Warnings in Pennsylvania, 2026Severe 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.