Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 14, NWS Philadelphia/Mount Holly

March 16, 20266 counties in Pennsylvania; Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Mar 16, 2026, 10:18 PM EDT for 6 counties in Pennsylvania; Warren County, New Jersey. It was in force for 57 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: Mar 16, 2026, 10:18 PM EDT (02:18 UTC)
Expired: Mar 16, 2026, 11:15 PM EDT
In force: 57 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Warren County, NJ, Berks County, PA, Bucks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 134 km from the middle of the area, began a volume at 02:18 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
Mar 16, 10:41 PM EDT	TSTM WND DMG	1 Sse Allentown, PA	Several reports of trees and wires down with entire blocks having wires down. Time estimated from radar.
Mar 16, 10:41 PM EDT	TSTM WND DMG	Allentown, PA	Trees and wires down. Time estimated from radar.
Mar 16, 10:52 PM EDT	TSTM WND DMG	Upper Saucon Twp, PA	Several trees and wires down around Upper Saucon Township. Time estimated from radar.
Mar 16, 10:58 PM EDT	TSTM WND DMG	Nazareth, PA	Several trees and wires down around Nazareth. Time estimated from radar.
Mar 16, 11:00 PM EDT	TSTM WND DMG	Hellertown, PA	Several trees and wires down around Hellertown. 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 00:00Z, 2.3 hours before the alert went out and 216 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2 J/kg
Mixed-layer CIN: -96 J/kg
Mixed-layer LCL: 490 m above ground
0-6 km bulk shear: 64 kt
0-1 km storm-relative helicity: 605 m²/s²
0-3 km storm-relative helicity: 610 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

Open this sounding in Storm Lab

The text

As transmitted.

591 
WUUS51 KPHI 170218
SVRPHI
NJC041-PAC011-017-025-077-089-095-170315-
/O.NEW.KPHI.SV.W.0014.260317T0218Z-260317T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1018 PM EDT Mon Mar 16 2026

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Western Warren County in northwestern New Jersey...
  Northeastern Berks County in eastern Pennsylvania...
  Lehigh County in eastern Pennsylvania...
  Carbon County in northeastern Pennsylvania...
  Northwestern Bucks County in southeastern Pennsylvania...
  Monroe County in northeastern Pennsylvania...
  Northampton County in eastern Pennsylvania...

* Until 1115 PM EDT.

* At 1018 PM EDT, severe thunderstorms were located along a line
  extending from Christmans to near Lenhartsville to near Fleetwood,
  moving northeast at 50 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Allentown, Easton, Lehighton, Mount Pocono, Bethlehem, Forks,
  Emmaus, Northampton, East Stroudsburg, Tobyhanna, Wilson,
  Hellertown, Nazareth, Palmerton, Bangor, Kutztown, Jim Thorpe,
  Slatington, Fleetwood, and Pen Argyl.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

&&

LAT...LON 4115 7515 4113 7506 4104 7502 4098 7514
      4086 7505 4075 7519 4061 7520 4052 7507
      4042 7548 4045 7553 4037 7589 4069 7586
      4074 7576 4079 7585 4098 7584 4101 7573
      4109 7577 4112 7564 4123 7554 4125 7513
TIME...MOT...LOC 0218Z 233DEG 43KT 4096 7563 4059 7581 4040 7580 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

4 follow-up statements

019 
WWUS51 KPHI 170233
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1033 PM EDT Mon Mar 16 2026

NJC041-PAC011-017-025-077-089-095-170315-
/O.CON.KPHI.SV.W.0014.000000T0000Z-260317T0315Z/
Warren NJ-Berks PA-Lehigh PA-Carbon PA-Bucks PA-Monroe PA-
Northampton PA-
1033 PM EDT Mon Mar 16 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR WESTERN WARREN...NORTHEASTERN BERKS...LEHIGH...EASTERN CARBON...
NORTHWESTERN BUCKS...MONROE AND NORTHAMPTON COUNTIES...

At 1033 PM EDT, severe thunderstorms were located along a line
extending from Long Pond to Schnecksville to near Ancient Oaks,
moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Allentown, Easton, Lehighton, Mount Pocono, Bethlehem, Forks, Emmaus,
Northampton, East Stroudsburg, Tobyhanna, Wilson, Hellertown,
Nazareth, Palmerton, Bangor, Jim Thorpe, Slatington, Pen Argyl, Wind
Gap, and Bath.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

&&

LAT...LON 4115 7515 4113 7506 4104 7502 4098 7514
      4086 7505 4075 7519 4061 7520 4052 7507
      4042 7548 4045 7553 4040 7576 4063 7577
      4076 7571 4100 7569 4112 7564 4123 7554
      4125 7513
TIME...MOT...LOC 0233Z 232DEG 43KT 4108 7545 4069 7564 4050 7563 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

312 
WWUS51 KPHI 170249
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1049 PM EDT Mon Mar 16 2026

PAC011-170259-
/O.CAN.KPHI.SV.W.0014.000000T0000Z-260317T0315Z/
Berks PA-
1049 PM EDT Mon Mar 16 2026

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BERKS COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

LAT...LON 4115 7515 4113 7506 4104 7502 4098 7514
      4086 7505 4075 7519 4061 7520 4052 7507
      4042 7548 4045 7553 4047 7556 4087 7554
      4124 7542 4125 7513
TIME...MOT...LOC 0249Z 232DEG 43KT 4118 7530 4079 7546 4051 7542 

$$

NJC041-PAC017-025-077-089-095-170315-
/O.CON.KPHI.SV.W.0014.000000T0000Z-260317T0315Z/
Warren NJ-Lehigh PA-Carbon PA-Bucks PA-Monroe PA-Northampton PA-
1049 PM EDT Mon Mar 16 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR WESTERN WARREN...EASTERN LEHIGH...EAST CENTRAL CARBON...
NORTHWESTERN BUCKS...MONROE AND NORTHAMPTON COUNTIES...

At 1049 PM EDT, showers with strong to damaging winds were located 
along a line extending from near Mountainhome to near Beersville to 
near Emmaus, moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Allentown, Easton, Mount Pocono, Bethlehem, Forks, Emmaus,
Northampton, East Stroudsburg, Tobyhanna, Wilson, Hellertown,
Nazareth, Bangor, Pen Argyl, Wind Gap, Bath, Belvidere, Ferndale,
Belfast, and West Easton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

&&

LAT...LON 4115 7515 4113 7506 4104 7502 4098 7514
      4086 7505 4075 7519 4061 7520 4052 7507
      4042 7548 4045 7553 4047 7556 4087 7554
      4124 7542 4125 7513
TIME...MOT...LOC 0249Z 232DEG 43KT 4118 7530 4079 7546 4051 7542 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

638 
WWUS51 KPHI 170306
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1106 PM EDT Mon Mar 16 2026

PAC025-077-170316-
/O.CAN.KPHI.SV.W.0014.000000T0000Z-260317T0315Z/
Lehigh PA-Carbon PA-
1106 PM EDT Mon Mar 16 2026

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN LEHIGH AND EAST
CENTRAL CARBON COUNTIES IS CANCELLED...

The storms which prompted the warning have weakened and moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4115 7515 4113 7506 4104 7502 4098 7514
      4086 7505 4075 7519 4061 7520 4052 7507
      4047 7529 4092 7537 4125 7522 4125 7513
TIME...MOT...LOC 0306Z 233DEG 43KT 4130 7509 4091 7525 4063 7521 

$$

NJC041-PAC017-089-095-170315-
/O.CON.KPHI.SV.W.0014.000000T0000Z-260317T0315Z/
Warren NJ-Bucks PA-Monroe PA-Northampton PA-
1106 PM EDT Mon Mar 16 2026

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM EDT
FOR WESTERN WARREN...NORTH CENTRAL BUCKS...CENTRAL MONROE AND EASTERN
NORTHAMPTON COUNTIES...

At 1106 PM EDT, showers producing gusty winds were located along a 
line extending from Pecks Pond to near Pen Argyl to near 
Riegelsville, moving northeast at 50 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Easton, Bethlehem, Forks, East Stroudsburg, Wilson, Nazareth, Bangor,
Pen Argyl, Wind Gap, Belvidere, Ferndale, Belfast, West Easton,
Tatamy, East Bangor, Riegelsville, Glendon, Pleasant Valley,
Stormville, and Henryville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

This severe thunderstorm may contain little or no lightning. Do not
wait until you hear thunder before taking cover.

&&

LAT...LON 4115 7515 4113 7506 4104 7502 4098 7514
      4086 7505 4075 7519 4061 7520 4052 7507
      4047 7529 4092 7537 4125 7522 4125 7513
TIME...MOT...LOC 0306Z 233DEG 43KT 4130 7509 4091 7525 4063 7521 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

367 
WWUS51 KPHI 170312
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1112 PM EDT Mon Mar 16 2026

NJC041-PAC017-089-095-170321-
/O.EXP.KPHI.SV.W.0014.000000T0000Z-260317T0315Z/
Warren NJ-Bucks PA-Monroe PA-Northampton PA-
1112 PM EDT Mon Mar 16 2026

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN WARREN...NORTH CENTRAL
BUCKS...CENTRAL MONROE AND EASTERN NORTHAMPTON COUNTIES WILL EXPIRE
AT 1115 PM EDT...

The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire.  However gusty winds are still possible with
these thunderstorms.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.

LAT...LON 4115 7515 4113 7506 4104 7502 4098 7514
      4086 7505 4075 7519 4061 7520 4052 7507
      4047 7529 4092 7537 4125 7522 4125 7513
TIME...MOT...LOC 0311Z 233DEG 43KT 4133 7503 4094 7519 4066 7515 

$$

Staarmann

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 16, 9:54 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	66 min
Mar 16, 10:32 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	58 min
Mar 16, 11:16 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Philadelphia	59 min
Mar 16, 10:03 PM EDT	Special Marine Warning	PHI		117 min
Mar 16, 10:36 PM EDT	Special Marine Warning	PHI		86 min
Mar 16, 10:39 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	51 min
Mar 16, 10:50 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Atlantic, Cape May, Cumberland, Salem	55 min
Mar 16, 10:58 PM EDT	Special Marine Warning	PHI		2 hr
Mar 16, 11:19 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Gloucester, Mercer, Monmouth and 1 more	41 min
Mar 16, 11:30 PM EDT	Special Marine Warning	PHI		2 hr
Mar 16, 11:37 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Ocean	38 min
Mar 16, 11:49 PM EDT	Tornado Warning	PHI	Burlington, Monmouth, Ocean	26 min
Mar 16, 11:51 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean	43 min
Mar 16, 11:55 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Somerset	25 min
Mar 17, 5:48 AM EDT	Small Craft Advisory	PHI		31 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2026 Severe Thunderstorm Warnings in New Jersey, 2026 Every 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.