Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 55, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 6, 2026, 5:23 PM EDT for Warren County, New Jersey; 6 counties in Pennsylvania. It was in force for 67 min. 17 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, 5:23 PM EDT (21:23 UTC)
- Expired
- Jun 6, 2026, 6:30 PM EDT
- In force
- 67 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, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Montgomery County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 148 km from the middle of the area, began a volume at 21:25 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, 5:45 PM EDT | TSTM WND DMG | 3 Sse Kidder Twp, PA | Multiple trees blown down along 534 through Hickory Run State Park. Time estimated from radar. |
| Jun 6, 5:52 PM EDT | TSTM WND DMG | 2 N Rehrersburg, PA | Tree Down - Blocking both lanes. |
| Jun 6, 5:54 PM EDT | TSTM WND DMG | 2 Sw Marion Twp, PA | Tree on Wires - Multiple trees down. |
| Jun 6, 5:55 PM EDT | TSTM WND DMG | 2 Sw Marion Twp, PA | Tree Down. Time estimated. |
| Jun 6, 5:55 PM EDT | TSTM WND DMG | Hamburg, PA | Reports of some trees down with a few blocked roads in Hamburg and Exeter Township. Also, house chimney struck by lightning in Hamburg. Time estimated. |
| Jun 6, 6:00 PM EDT | TSTM WND DMG | 2 Sw Marion Twp, PA | Updated information from previous report: Damage to several homes reported. The metal roof of one manufactured residence was blown off. Another residence lost a chimney. Video shows a possible gustnado or tornado. Time estimated from radar. |
| Jun 6, 6:06 PM EDT | TSTM WND GST 54 | Pocono Mountains Munici, PA | ASOS station KMPO Mt. Pocono. |
| Jun 6, 6:07 PM EDT | TSTM WND DMG | 1 Ssw South Heidelberg, PA | Tree Down on House with Live Wires on Vinemont Rd. Time estimated. |
| Jun 6, 6:08 PM EDT | TSTM WND GST 49 | Lehigh Valley Internati, PA | ASOS station KABE Lehigh Valley Intl Airport. |
| Jun 6, 6:09 PM EDT | TSTM WND GST 47 | 1 S Reading Regional Ai, PA | ASOS station KRDG Reading. |
| Jun 6, 6:10 PM EDT | TSTM WND DMG | Tannersville, PA | Multiple trees blown down. Time estimated from radar. |
| Jun 6, 6:11 PM EDT | TSTM WND DMG | Whitehall Twp, PA | Wires down with the wires sparking. Via county fire scanner. Time estimated. |
| Jun 6, 6:15 PM EDT | TSTM WND DMG | 1 W Mount Penn, PA | Tree Down - Tree Down on Vehicle. Time estimated from radar. |
| Jun 6, 6:15 PM EDT | TSTM WND DMG | Stroudsburg, PA | Several large branches blown down. time estimated from radar. |
| Jun 6, 6:15 PM EDT | TSTM WND GST 53 | 1 Nw Salisbury Twp, PA | AWOS station KXLL Queen City. |
| Jun 6, 6:15 PM EDT | HAIL 0.25 | Spring Twp, PA | |
| Jun 6, 6:27 PM EDT | TSTM WND DMG | 2 Nnw Birdsboro, PA | Tree into a house with lives wires. Time given in report. |
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, 9.4 hours before the alert went out and 235 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.
458
WUUS51 KPHI 062123
SVRPHI
NJC041-PAC011-025-077-089-091-095-062230-
/O.NEW.KPHI.SV.W.0055.260606T2123Z-260606T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
523 PM EDT Sat Jun 6 2026
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Warren County in northwestern New Jersey...
Berks County in eastern Pennsylvania...
Northwestern Montgomery County in southeastern Pennsylvania...
Lehigh County in eastern Pennsylvania...
Carbon County in northeastern Pennsylvania...
Monroe County in northeastern Pennsylvania...
Northampton County in eastern Pennsylvania...
* Until 630 PM EDT.
* At 523 PM EDT, severe thunderstorms were located along a line
extending from near Wilkes-Barre to Mahanoy City to Forrestville to
Tremont, moving east at 45 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...
Allentown, Reading, Lehighton, Mount Pocono, Bethlehem, Pottstown,
Emmaus, Wyomissing, Northampton, East Stroudsburg, Tobyhanna,
Hellertown, Nazareth, Palmerton, Bangor, Birdsboro, Kutztown, Jim
Thorpe, Hamburg, and Slatington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4049 7643 4057 7602 4065 7598 4074 7576
4091 7599 4101 7573 4109 7577 4113 7569
4112 7564 4123 7554 4125 7513 4115 7515
4114 7509 4108 7503 4108 7495 4025 7561
4024 7603
TIME...MOT...LOC 2123Z 267DEG 39KT 4126 7581 4082 7615 4069 7630 4061
7639
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Cooper3 follow-up statements
636
WWUS51 KPHI 062158
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
558 PM EDT Sat Jun 6 2026
NJC041-PAC011-025-077-089-091-095-062230-
/O.CON.KPHI.SV.W.0055.000000T0000Z-260606T2230Z/
Warren NJ-Berks PA-Montgomery PA-Lehigh PA-Carbon PA-Monroe PA-
Northampton PA-
558 PM EDT Sat Jun 6 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHWESTERN WARREN...BERKS...NORTHWESTERN MONTGOMERY...LEHIGH...
CARBON...MONROE AND NORTHAMPTON COUNTIES...
At 556 PM EDT, severe thunderstorms were located along a line
extending from Angels to Lehighton to Snyders to near Lenhartsville,
moving east at 45 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Trained weather spotters. At 545 PM, multiple downed trees
were reported in Hickory Run State Park.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Allentown, Reading, Lehighton, Mount Pocono, Bethlehem, Pottstown,
Emmaus, Wyomissing, Northampton, East Stroudsburg, Tobyhanna,
Hellertown, Nazareth, Palmerton, Bangor, Birdsboro, Kutztown, Jim
Thorpe, Hamburg, and Slatington.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4049 7643 4057 7602 4065 7598 4074 7576
4091 7599 4101 7573 4109 7577 4113 7569
4112 7564 4123 7554 4125 7513 4115 7515
4114 7509 4108 7503 4108 7495 4025 7561
4024 7603
TIME...MOT...LOC 2156Z 270DEG 39KT 4127 7534 4083 7569 4070 7584 4062
7593
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Cooper174
WWUS51 KPHI 062219
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
619 PM EDT Sat Jun 6 2026
NJC041-PAC011-025-077-089-091-095-062230-
/O.CON.KPHI.SV.W.0055.000000T0000Z-260606T2230Z/
Warren NJ-Berks PA-Montgomery PA-Lehigh PA-Carbon PA-Monroe PA-
Northampton PA-
619 PM EDT Sat Jun 6 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM EDT
FOR NORTHWESTERN WARREN...BERKS...NORTHWESTERN MONTGOMERY...LEHIGH...
SOUTHEASTERN CARBON...MONROE AND NORTHAMPTON COUNTIES...
At 619 PM EDT, severe thunderstorms were located along a line
extending from near Alpine Mountain to near Old Orchard to near
Bechtelsville, moving east at 60 mph.
HAZARD...60 mph wind gusts.
SOURCE...Trained weather spotters.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Allentown, Reading, Mount Pocono, Bethlehem, Pottstown, Emmaus,
Wyomissing, Northampton, East Stroudsburg, Hellertown, Nazareth,
Palmerton, Bangor, Birdsboro, Kutztown, Hamburg, Slatington,
Fleetwood, Sinking Spring, and Laureldale.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4024 7603 4025 7604 4028 7609 4038 7626
4056 7605 4057 7602 4065 7598 4074 7576
4074 7572 4086 7563 4124 7535 4125 7513
4115 7515 4114 7509 4108 7503 4108 7495
4025 7561
TIME...MOT...LOC 2219Z 281DEG 51KT 4112 7516 4066 7531 4042 7565
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...60 MPH
$$
Cooper893
WWUS51 KPHI 062229
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
629 PM EDT Sat Jun 6 2026
NJC041-PAC011-025-077-089-091-095-062239-
/O.EXP.KPHI.SV.W.0055.000000T0000Z-260606T2230Z/
Warren NJ-Berks PA-Montgomery PA-Lehigh PA-Carbon PA-Monroe PA-
Northampton PA-
629 PM EDT Sat Jun 6 2026
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WARREN...BERKS...
NORTHWESTERN MONTGOMERY...LEHIGH...SOUTHEASTERN CARBON...MONROE AND
NORTHAMPTON COUNTIES WILL EXPIRE AT 630 PM EDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
northwestern New Jersey...and eastern, southeastern and northeastern
Pennsylvania.
LAT...LON 4024 7603 4025 7604 4028 7609 4038 7626
4056 7605 4057 7602 4065 7598 4074 7576
4074 7572 4086 7563 4124 7535 4125 7513
4115 7515 4114 7509 4108 7503 4108 7495
4025 7561
TIME...MOT...LOC 2229Z 270DEG 39KT 4113 7502 4067 7517 4043 7551
$$
CooperThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Monmouth, Morris, Somerset, Sussex and 1 more | 61 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 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.