Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 293, NWS Philadelphia/Mount Holly

November 15, 20205 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Nov 15, 2020, 5:57 PM EST for 5 counties in Pennsylvania. It was in force for 78 min. 40 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: Nov 15, 2020, 5:57 PM EST (22:57 UTC)
Expired: Nov 15, 2020, 7:15 PM EST
In force: 78 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 138 km from the middle of the area, began a volume at 22:58 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
Nov 15, 6:30 PM EST	TSTM WND DMG	1 Sw Weatherly, PA	DOWNED TREE IN WIRES NEAR BRENKMAN DRIVE. TIME ESTIMATED FROM RADAR.
Nov 15, 6:30 PM EST	TSTM WND DMG	Centre Twp, PA	DOWNED TREE ON IRISH CREEK ROAD NEAR BELLEMANS CHURCH ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:33 PM EST	TSTM WND GST 62	1 Wnw Hamburg, PA	IN THE LOWES PARKING LOT, MEASURED WITH A KESTREL 5000. POWER FLASHES OBSERVED.
Nov 15, 6:35 PM EST	TSTM WND GST 60	Bern Twp, PA	DOWNED TREE LIMBS IN THE AREA.
Nov 15, 6:39 PM EST	TSTM WND DMG	2 Se Shillington, PA	DOWNED TREE AND WIRES NEAR CHURCH ROAD AND NEW HOLLAND ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:39 PM EST	TSTM WND GST 51	Reading Regional Airpor, PA
Nov 15, 6:40 PM EST	TSTM WND DMG	1 Nnw Blandon, PA	DOWNED POLE AND WIRES NEAR SPIRIT COURT AND PARK ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:41 PM EST	TSTM WND DMG	Lynn Twp, PA	TREE DOWN WITH POWER OUTAGE. TIME ESTIMATED.
Nov 15, 6:42 PM EST	TSTM WND DMG	1 S Ruscombmanor Twp, PA	DOWNED TREE AND WIRES NEAR MEMORIAL HIGHWAY AND ERHARDT ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:42 PM EST	TSTM WND DMG	2 Sw East Penn Twp, PA	DOWNED TREE IN WIRES NEAR GERMANS ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:44 PM EST	TSTM WND DMG	2 Sw Oley, PA	DOWNED TREE ON FRIEDENSBERG ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:44 PM EST	TSTM WND DMG	2 W Lorane, PA	DOWNED TREE ON SEYFERT DRIVE. TIME ESTIMATED FROM RADAR.
Nov 15, 6:44 PM EST	TSTM WND DMG	Shillington, PA	DOWNED TREE ON A CAR ON MADISON STREET. TIME ESTIMATED FROM RADAR.
Nov 15, 6:45 PM EST	TSTM WND DMG	1 Nne Exeter Twp, PA	DOWNED TREE AND WIRES ON STONEHENGE DRIVE. TIME ESTIMATED FROM RADAR.
Nov 15, 6:45 PM EST	TSTM WND DMG	3 Wnw Robeson Twp, PA	DOWNED TREE AND WIRES NEAR MORGANTOWN ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:45 PM EST	TSTM WND DMG	Germansville, PA	13 INCH DIAMETER TREE LIMB DOWNED. TIME ESTIMATED FROM RADAR.
Nov 15, 6:46 PM EST	TSTM WND DMG	3 Ene Kutztown, PA	MPING REPORT OF TREES AND WIRES DOWN IN THIS AREA. TIME ESTIMATED FROM RADAR.
Nov 15, 6:46 PM EST	TSTM WND DMG	3 W Emerald, PA	DOWNED TREE IN WIRES NEAR FURNACE ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:48 PM EST	TSTM WND DMG	3 Nnw Topton, PA	DOWNED WIRES ON KUNKLE ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:48 PM EST	TSTM WND DMG	3 Nnw Topton, PA	AN NWS STORM SURVEY CONCLUDED THAT STRAIGHT LINE WINDS CAUSED EXTENSIVE DAMAGE TO RURAL AREAS OF MAXATAWNY TWP IN BERKS COUNTY. WINDS WERE ESTIMATED UP TO 80 MPH. THE DAMAGED STARTED ALONG KUNKEL ROAD AND ENDED ALONG ROUTE 863 IN LEHIGH COUNTY. TIME WAS ESTIMA
Nov 15, 6:52 PM EST	TSTM WND DMG	1 Wnw Earl Twp, PA	DOWNED TREE NEAR WEST PHILADELPHIA AVENUE AND SCHOOL HOUSE ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:53 PM EST	TSTM WND DMG	4 Nnw Amity Gardens, PA	DOWNED TREE ON WIRES NEAR COVERED BRIDGE ROAD AND MEMORIAL HIGHWAY IN OLEY TWP. TIME ESTIMATED FROM RADAR.
Nov 15, 6:54 PM EST	TSTM WND DMG	1 Ssw Earl Twp, PA	DOWNED TREE ON SUNSET HILL ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:56 PM EST	TSTM WND DMG	1 S Earl Twp, PA	DOWNED TREE NEAR THE INTERSECTION OF LAUREL ROAD AND PINE ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:56 PM EST	TSTM WND DMG	2 Wsw Pocono Summit, PA	DOWNED TREE ON SULLIVAN TRAIL NEAR LONG POND ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 6:58 PM EST	TSTM WND DMG	3 Sw Allentown, PA	REPORTS OF DOWNED TREES AND WIRES NEAR LINDBERG AVENUE. TIME ESTIMATED FROM RADAR.
Nov 15, 6:59 PM EST	TSTM WND DMG	Kunkletown, PA	SEVERAL DOWNED TREES IN THE AREA. TIME BASED ON OBSERVED WIND GUSTS.
Nov 15, 7:00 PM EST	TSTM WND DMG	1 Wsw Northampton, PA	MPING REPORT OF TREE LIMBS DOWN. TIME ESTIMATED FROM RADAR.
Nov 15, 7:00 PM EST	TSTM WND DMG	Kunkletown, PA	DOWNED TREE IN WIRES NEAR FIDDLETOWN ROAD. TIME ESTIMATED FROM RADAR.
Nov 15, 7:02 PM EST	TSTM WND GST 53	Whitehall Twp, PA
Nov 15, 7:04 PM EST	TSTM WND DMG	2 Sse Zionsville, PA	TREE DOWN INTO A VEHICLE, NO INJURIES OR ENTRAPMENT. TIME ESTIMATED.
Nov 15, 7:05 PM EST	TSTM WND DMG	Salisbury Twp, PA	TREE DOWN INTO WIRES, STILL ENERGIZED. TIME ESTIMATED.
Nov 15, 7:10 PM EST	TSTM WND DMG	2 Ene Center Valley, PA	MPING REPORT OF TREES UPROOTED OR SNAPPED. TIME ESTIMATED FROM RADAR.
Nov 15, 7:12 PM EST	TSTM WND DMG	1 Ne Wind Gap, PA	SEVERAL LARGE TREES AND LIMBS DOWN IN THE AREA. TIME ESTIMATED FROM RADAR.
Nov 15, 7:12 PM EST	TSTM WND DMG	1 Nne Arlington Heights, PA	DOWNED TREE ON CHRISTOPHER STREET NEAR NORTH 5TH STREET. TIME ESTIMATED FROM RADAR.
Nov 15, 7:14 PM EST	TSTM WND DMG	3 Ese Skytop, PA	DOWNED TREE IN WIRES NEAR BROWNS LAKE DRIVE. TIME ESTIMATED FROM RADAR.
Nov 15, 7:14 PM EST	TSTM WND DMG	Bushkill Twp, PA	TREES AND WIRES DOWN IN BUSHKILL TOWNSHIP.
Nov 15, 7:16 PM EST	TSTM WND DMG	Pen Argyl, PA	TREES AND WIRES DOWN IN PENN ARGYL BOROUGH.
Nov 15, 7:17 PM EST	TSTM WND DMG	Washington Twp, PA	TREES AND WIRES DOWN IN WASHINGTON TOWNSHIP.
Nov 15, 7:18 PM EST	TSTM WND DMG	2 S Tatamy, PA	MPING REPORT OF TREE LIMBS DOWN. TIME ESTIMATED FROM 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
Nov 15, 5:35 PM EST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 11.0 hours before the alert went out and 231 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: 1363 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 92 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

861 
WUUS51 KPHI 152257
SVRPHI
PAC011-025-077-089-095-160015-
/O.NEW.KPHI.SV.W.0293.201115T2257Z-201116T0015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
557 PM EST Sun Nov 15 2020

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Berks County in eastern Pennsylvania...
  Lehigh County in eastern Pennsylvania...
  Carbon County in northeastern Pennsylvania...
  Monroe County in northeastern Pennsylvania...
  Northampton County in eastern Pennsylvania...

* Until 715 PM EST.

* At 555 PM EST, intense showers and embedded severe thunderstorms 
  were located along a line extending from Pond Hill to near 
  Lickdale to near Lawn to near Parkville, moving east at 45 mph.

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

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Allentown, Reading, Easton, Lehighton, Mount Pocono, Bethlehem,
  Forks, Emmaus, Wyomissing, Northampton, East Stroudsburg,
  Tobyhanna, Wilson, Hellertown, Nazareth, Palmerton, Bangor,
  Birdsboro, Kutztown and Jim Thorpe.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 296 and 299.
 Northeast Extension between mile markers 46 and 97.
 Interstate 78 in Pennsylvania between mile markers 10 and 72.
 Interstate 80 in Pennsylvania between mile markers 278 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 13.
 Interstate 176 in Pennsylvania between mile markers 1 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 4057 7602 4065 7598 4074 7576
      4091 7599 4101 7573 4109 7577 4112 7564
      4123 7554 4125 7513 4115 7515 4108 7503
      4109 7498 4098 7514 4092 7509 4054 7533
      4042 7549 4045 7553 4025 7569 4014 7587
TIME...MOT...LOC 2255Z 267DEG 41KT 4115 7612 4050 7649 4020 7658 3979
7690

HAIL...<.75IN
WIND...60MPH
 
$$

Gorse

2 follow-up statements

644 
WWUS51 KPHI 152329
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
629 PM EST Sun Nov 15 2020

PAC011-025-077-089-095-160015-
/O.CON.KPHI.SV.W.0293.000000T0000Z-201116T0015Z/
Berks PA-Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
629 PM EST Sun Nov 15 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EST
FOR BERKS...LEHIGH...CARBON...MONROE AND NORTHAMPTON COUNTIES...

At 627 PM EST, intense showers and some embedded severe 
thunderstorms were located along a line extending from near 
Stoddartsville to near Weatherly to near Shoemakersville to 
Reamstown to near Shrewsbury, moving east at 50 mph.

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

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Allentown, Reading, Easton, Lehighton, Mount Pocono, Bethlehem,
Forks, Emmaus, Wyomissing, Northampton, East Stroudsburg, Tobyhanna,
Wilson, Hellertown, Nazareth, Palmerton, Bangor, Birdsboro, Kutztown
and Jim Thorpe.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 296 and 299.
 Northeast Extension between mile markers 46 and 97.
 Interstate 78 in Pennsylvania between mile markers 10 and 72.
 Interstate 80 in Pennsylvania between mile markers 278 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 13.
 Interstate 176 in Pennsylvania between mile markers 1 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 4057 7602 4065 7598 4074 7576
      4091 7599 4101 7573 4109 7577 4112 7564
      4123 7554 4125 7513 4115 7515 4108 7503
      4109 7498 4098 7514 4092 7509 4054 7533
      4042 7549 4045 7553 4025 7569 4014 7587
TIME...MOT...LOC 2327Z 266DEG 43KT 4117 7564 4093 7586 4052 7601 4022
7611 3981 7665

HAIL...<.75IN
WIND...60MPH
 
$$

Gorse

018 
WWUS51 KPHI 152358
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
658 PM EST Sun Nov 15 2020

PAC011-025-077-089-095-160015-
/O.CON.KPHI.SV.W.0293.000000T0000Z-201116T0015Z/
Berks PA-Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
658 PM EST Sun Nov 15 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EST
FOR EASTERN BERKS...LEHIGH...SOUTHEASTERN CARBON...MONROE AND
NORTHAMPTON COUNTIES...

At 657 PM EST, intense showers and embedded severe thunderstorms 
were located along a line extending from near Pecks Pond to 
McMichael to near Allentown to Gilbertsville to Quarryville, moving 
east at 55 mph.

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

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Allentown, Reading, Easton, Mount Pocono, Bethlehem, Forks, Emmaus,
Northampton, East Stroudsburg, Tobyhanna, Wilson, Hellertown,
Nazareth, Palmerton, Bangor, Birdsboro, Slatington, Fleetwood, Pen
Argyl and Wind Gap.

This includes the following highways...
 Pennsylvania Turnpike between mile markers 298 and 299.
 Northeast Extension between mile markers 46 and 70.
 Interstate 78 in Pennsylvania between mile markers 46 and 72.
 Interstate 80 in Pennsylvania between mile markers 292 and 314.
 Interstate 380 in Pennsylvania between mile markers 0 and 9.
 Interstate 176 in Pennsylvania between mile markers 1 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 4024 7600 4052 7575 4123 7544 4125 7513
      4115 7515 4108 7503 4109 7498 4098 7514
      4092 7509 4054 7533 4042 7549 4045 7553
      4025 7569 4014 7587
TIME...MOT...LOC 2357Z 249DEG 50KT 4126 7516 4102 7538 4061 7553 4031
7563 3990 7618

HAIL...<.75IN
WIND...60MPH
 
$$

Gorse

The office that day

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

Issued	Product	Office	Counties	Lasted
Nov 15, 6:44 PM EST	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Monroe, Montgomery and 1 more	76 min
Nov 15, 6:53 PM EST	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	67 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 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.