Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 47, NWS Philadelphia/Mount Holly

June 3, 2020Hunterdon County, Warren County, New Jersey; 7 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 3, 2020, 11:04 AM EDT for Hunterdon County, Warren County, New Jersey; 7 counties in Pennsylvania. It was in force for 41 min. 26 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 3, 2020, 11:04 AM EDT (15:04 UTC)
Expired: Jun 3, 2020, 11:45 AM EDT
In force: 41 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

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

The radar

The Philadelphia radar (KDIX), 147 km from the middle of the area, began a volume at 15:07 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 3, 11:25 AM EDT	TSTM WND DMG	2 Wnw Muhlenberg Twp, PA	SEVERAL TREES DOWNED ON A PROPERTY ON RIVER RD. REPORT VIA SOCIAL MEDIA WITH PHOTOS. TIME ESTIMATED FROM RADAR.
Jun 3, 11:30 AM EDT	TSTM WND DMG	1 Wnw North Heidelberg, PA	NUMEROUS REPORTS OF TREES AND WIRES DOWN IN NORTH HEIDELBERG. TIME ESTIMATED FROM RADAR.
Jun 3, 11:30 AM EDT	TSTM WND DMG	2 Wsw Bernville, PA	TREE DOWN ON WIRES ON CHRISTMAS VILLAGE ROAD.
Jun 3, 11:32 AM EDT	TSTM WND DMG	3 Ene North Heidelberg, PA	TREE DOWN ON WIRES ON MOUNT PLEASANT ROAD.
Jun 3, 11:34 AM EDT	TSTM WND GST 67	Reading Regional Airpor, PA
Jun 3, 11:35 AM EDT	TSTM WND DMG	Bern Twp, PA	POWER POLE DOWN ONTO A HOUSE.
Jun 3, 11:35 AM EDT	TSTM WND DMG	Wernersville, PA	SEVERAL TREE LIMBS AND POWER LINES DOWN IN THE AREA. ESTIMATED WIND GUSTS UP TO 60 MPH.
Jun 3, 11:35 AM EDT	TSTM WND GST 83	Reading Regional Airpor, PA	SEVERAL REPORTS OF TREE AND POWER LINE DAMAGE IN THE AREA.
Jun 3, 11:38 AM EDT	TSTM WND DMG	1 Sse Laureldale, PA	DOWNED TREE IN WIRES ON STATE HIGHWAY 12 NEAR THE 11TH STREET INTERCHANGE. TIME ESTIMATED.
Jun 3, 11:38 AM EDT	TSTM WND DMG	2 Ese Laureldale, PA	DOWNED TREE IN WIRES ON STATE HIGHWAY 12 NEAR SPRING VALLEY ROAD. TIME ESTIMATED.
Jun 3, 11:40 AM EDT	TSTM WND DMG	1 N Spring Twp, PA	TREE DOWN ONTO A HOUSE ON EAST COURT BOULEVARD. TIME ESTIMATED.
Jun 3, 11:40 AM EDT	TSTM WND DMG	2 N West Lawn, PA	SEVERAL REPORTS OF TREES AND WIRES DOWN IN SPRING RIDGE AND WEST LAWN.
Jun 3, 11:40 AM EDT	TSTM WND DMG	Spring Twp, PA	DOWNED TREE AND WIRES ON CLEVELAND AVENUE.
Jun 3, 11:40 AM EDT	TSTM WND DMG	Wyomissing, PA	LARGE TREE DOWNED IN WYOMISSING. REPORT VIA SOCIAL MEDIA WITH VIDEO. TIME ESTIMATED FROM RADAR.
Jun 3, 11:42 AM EDT	TSTM WND DMG	Laureldale, PA	WIDESPREAD POWER OUTAGES WITH NUMEROUS REPORTS OF POWER LINES AND TREES DOWN.
Jun 3, 11:42 AM EDT	TSTM WND DMG	West Wyomissing, PA	SEVERAL REPORTS OF TREES AND POWER LINES DOWN.
Jun 3, 11:45 AM EDT	TSTM WND DMG	1 Nnw Muhlenberg Twp, PA	BUILDING COLLAPSE CAUSED BY TREE FALLING INTO A HOUSE.
Jun 3, 11:45 AM EDT	TSTM WND GST 60	1 Ssw Ruscombmanor Twp, PA
Jun 3, 11:50 AM EDT	TSTM WND DMG	2 Ne Mount Penn, PA	SEVERAL REPORTS OF TREES AND POWER LINES DOWN.
Jun 3, 11:50 AM EDT	TSTM WND DMG	2 Sse Zionsville, PA	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2 SSE ZIONSVILLE. DOWNED TREE IN WIRES NEAR THE INTERSECTION OF PALM ROAD AND KINGS HIGHWAY SOUTH. TIME ESTIMATED.
Jun 3, 11:50 AM EDT	TSTM WND DMG	Alburtis, PA	SEVERAL REPORTS OF TREES AND POWER LINES DOWN.
Jun 3, 11:50 AM EDT	TSTM WND DMG	Douglassville, PA	LARGE TREE DOWN NEAR YELLOW HOUSE HOTEL. TIME ESTIMATED.
Jun 3, 11:50 AM EDT	TSTM WND DMG	Kenhorst, PA	SEVERAL REPORTS OF TREE AND POWER LINE DAMAGE.
Jun 3, 11:51 AM EDT	TSTM WND DMG	2 Ene Hereford Twp, PA	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 2 ENE HEREFORD TWP. DOWNED TREE IN WIRES NEAR THE INTERSECTION OF POWDER VALLEY ROAD AND PALM ROAD. TIME ESTIMATED.
Jun 3, 11:53 AM EDT	TSTM WND DMG	1 W Geryville, PA	DOWNED TREE IN WIRES. TIME ESTIMATED.
Jun 3, 11:53 AM EDT	TSTM WND DMG	2 Nw Milford Twp, PA	DOWNED TREE IN WIRES. TIME ESTIMATED.

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 3, 10:08 AM EDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 3.1 hours before the alert went out and 226 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2031 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 273 m²/s²
0-3 km storm-relative helicity: 269 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

042 
WUUS51 KPHI 031504
SVRPHI
NJC019-041-PAC011-017-025-077-089-091-095-031545-
/O.NEW.KPHI.SV.W.0047.200603T1504Z-200603T1545Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
1104 AM EDT Wed Jun 3 2020

The National Weather Service in Mount Holly NJ has issued a

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

* Until 1145 AM EDT.

* At 1103 AM EDT, severe thunderstorms were located along a line
  extending from Nuremburg to near Friedensburg to Fort Indiantown
  Gap, moving east at 75 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, Easton, Lehighton, Bethlehem, Pottstown, Forks,
  Emmaus, Wyomissing, Northampton, Quakertown, Perkasie, Wilson,
  Souderton, Bedminster, Washington, Hellertown, Nazareth, Palmerton
  and Bangor.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 0 and 12.
 Interstate 80 in New Jersey between mile markers 4 and 16.
 Interstate 78 in Pennsylvania between mile markers 10 and 76.
 Northeast Extension between exits A44 and A74.
 Interstate 176 in Pennsylvania between mile markers 10 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

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

&&

LAT...LON 4052 7634 4052 7625 4058 7605 4057 7602
      4065 7598 4070 7583 4074 7576 4083 7590
      4091 7599 4098 7582 4093 7487 4046 7507
      4022 7550 4033 7617 4049 7643
TIME...MOT...LOC 1503Z 278DEG 64KT 4094 7616 4060 7630 4045 7657 

HAIL...0.75IN
WIND...60MPH
 
$$

JEO

2 follow-up statements

162 
WWUS51 KPHI 031523
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1123 AM EDT Wed Jun 3 2020

PAC089-031532-
/O.CAN.KPHI.SV.W.0047.000000T0000Z-200603T1545Z/
Monroe PA-
1123 AM EDT Wed Jun 3 2020

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN MONROE COUNTY 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 300 PM EDT for
northwestern New Jersey...and eastern, southeastern and northeastern
Pennsylvania.

LAT...LON 4049 7643 4052 7627 4052 7625 4054 7617
      4058 7605 4057 7602 4065 7598 4070 7583
      4074 7576 4084 7590 4081 7547 4080 7526
      4081 7492 4046 7507 4022 7550 4033 7617
TIME...MOT...LOC 1522Z 278DEG 64KT 4089 7572 4055 7587 4040 7614 

$$

NJC019-041-PAC011-017-025-077-091-095-031545-
/O.CON.KPHI.SV.W.0047.000000T0000Z-200603T1545Z/
Hunterdon NJ-Warren NJ-Berks PA-Lehigh PA-Montgomery PA-Carbon PA-
Bucks PA-Northampton PA-
1123 AM EDT Wed Jun 3 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 AM EDT
FOR NORTHWESTERN HUNTERDON...SOUTHWESTERN WARREN...BERKS...LEHIGH...
NORTHWESTERN MONTGOMERY...SOUTHERN CARBON...NORTHWESTERN BUCKS AND
NORTHAMPTON COUNTIES...

At 1122 AM EDT, severe thunderstorms were located along a line
extending from Jim Thorpe to Lenhartsville to near Bernville, moving
east at 75 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, Easton, Lehighton, Bethlehem, Pottstown, Forks,
Emmaus, Wyomissing, Northampton, Quakertown, Perkasie, Wilson,
Souderton, Bedminster, Washington, Hellertown, Nazareth, Palmerton
and Birdsboro.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 0 and 12.
 Interstate 78 in Pennsylvania between mile markers 10 and 76.
 Northeast Extension between exits A44 and A56.
 Interstate 176 in Pennsylvania between mile markers 10 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

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

&&

LAT...LON 4049 7643 4052 7627 4052 7625 4054 7617
      4058 7605 4057 7602 4065 7598 4070 7583
      4074 7576 4084 7590 4081 7547 4080 7526
      4081 7492 4046 7507 4022 7550 4033 7617
TIME...MOT...LOC 1522Z 278DEG 64KT 4089 7572 4055 7587 4040 7614 

HAIL...0.75IN
WIND...60MPH
 
$$

JEO

372 
WWUS51 KPHI 031540
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1140 AM EDT Wed Jun 3 2020

NJC019-041-PAC011-017-025-077-091-095-031550-
/O.EXP.KPHI.SV.W.0047.000000T0000Z-200603T1545Z/
Hunterdon NJ-Warren NJ-Berks PA-Lehigh PA-Montgomery PA-Carbon PA-
Bucks PA-Northampton PA-
1140 AM EDT Wed Jun 3 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN HUNTERDON...
SOUTHWESTERN WARREN...BERKS...LEHIGH...NORTHWESTERN MONTGOMERY...
SOUTHERN CARBON...NORTHWESTERN BUCKS AND NORTHAMPTON COUNTIES WILL
EXPIRE AT 1145 AM EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. A new warning has 
been issued for portions of the area.

A Severe Thunderstorm Watch remains in effect until 300 PM EDT for
northwestern New Jersey...and eastern, southeastern and northeastern
Pennsylvania.

LAT...LON 4049 7643 4052 7627 4052 7625 4054 7617
      4058 7605 4057 7602 4065 7598 4070 7583
      4074 7576 4084 7590 4081 7547 4080 7526
      4081 7492 4046 7507 4022 7550 4033 7617
TIME...MOT...LOC 1540Z 278DEG 64KT 4085 7531 4051 7546 4036 7574 

$$

JEO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 3, 12:24 AM EDT	Special Weather Statement	PHI	Warren	51 min
Jun 3, 1:08 AM EDT	Special Weather Statement	PHI	Somerset	37 min
Jun 3, 1:44 AM EDT	Areal Flood Advisory	PHI	Hunterdon, Middlesex, Morris, Somerset, Warren	3 hr
Jun 3, 9:48 AM EDT	Small Craft Advisory	PHI		8 hr
Jun 3, 11:38 AM EDT	Severe Thunderstorm Warning	PHI	Hunterdon	37 min
Jun 3, 11:59 AM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Hunterdon, Mercer, Middlesex, Monmouth and 1 more	46 min
Jun 3, 12:06 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Gloucester, Salem	39 min
Jun 3, 12:35 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Mercer, Middlesex, Monmouth, Ocean and 1 more	55 min
Jun 3, 12:38 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	69 min
Jun 3, 12:43 PM EDT	Special Marine Warning	PHI		43 min
Jun 3, 1:01 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	28 min
Jun 3, 1:14 PM EDT	Special Marine Warning	PHI		61 min
Jun 3, 1:14 PM EDT	Special Weather Statement	PHI	Cape May, Cumberland	61 min
Jun 3, 1:20 PM EDT	Special Marine Warning	PHI		55 min
Jun 3, 2:11 PM EDT	Special Marine Warning	PHI		34 min
Jun 3, 7:02 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Cumberland, Gloucester, Salem	58 min
Jun 3, 7:11 PM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	64 min
Jun 3, 7:21 PM EDT	Tornado Warning	PHI	Burlington, Camden, Gloucester	24 min
Jun 3, 7:53 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	36 min
Jun 3, 7:55 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more	33 min
Jun 3, 11:29 AM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	46 min
Jun 3, 5:46 PM EDT	Severe Thunderstorm Warning	PHI	Berks	44 min
Jun 3, 6:26 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	64 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2020 Severe Thunderstorm Warnings in New Jersey, 2020 Every severe thunderstorm warning in 2020

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.