Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 151, NWS Philadelphia/Mount Holly

July 22, 2020Monroe County, Northampton County, Pennsylvania; Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 22, 2020, 2:10 PM EDT for Monroe County, Northampton County, Pennsylvania; Warren County, New Jersey. It was in force for 50 min. 10 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 22, 2020, 2:10 PM EDT (18:10 UTC)
Expired: Jul 22, 2020, 3:00 PM EDT
In force: 50 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Warren County, NJ, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 141 km from the middle of the area, began a volume at 18:13 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 22, 2:11 PM EDT	TSTM WND DMG	1 Se Effort, PA	TREE DOWN ON ROUTE 115 AT BROOKMONT DR. TIME ESTIMATED FROM RADAR.
Jul 22, 2:13 PM EDT	HAIL 1.5	Tannersville, PA	SOCIAL MEDIA VIDEO OF HAIL AT LEAST PING PONG BALL SIZED IN TANNERSVILLE. TIME ESTIMATED FROM RADAR.
Jul 22, 2:16 PM EDT	TSTM WND DMG	1 Ssw Scotrun, PA	TWO TREES DOWNED BLOCKING SULLIVAN TRAIL BY BARKLEY CREEK. TIME ESTIMATED FROM RADAR.
Jul 22, 2:17 PM EDT	TSTM WND DMG	2 Wsw Scotrun, PA	SEVERAL TREES AND WIRES WERE DOWNED ON CAMELBACK RD. TIME ESTIMATED FROM RADAR.
Jul 22, 2:17 PM EDT	TSTM WND DMG	Scotrun, PA	DOWNED TREES AND WIRES NEAR SCOTRUN AVENUE. TIME ESTIMATED FROM RADAR.
Jul 22, 2:18 PM EDT	TSTM WND DMG	Scotrun, PA	TREE DOWN BLOCKING SCOTRUN AVE. TIME ESTIMATED FROM RADAR.
Jul 22, 2:24 PM EDT	TSTM WND DMG	2 Ssw Hernyville, PA	DOWNED TREE IN THE ROADWAY ON CHERRY LANE RD AT BIRCHWOOD RD. TIME ESTIMATED FROM RADAR.
Jul 22, 2:25 PM EDT	TSTM WND DMG	Analomink, PA	A DOWNED TREE BLOCKED PARADISE TRAIL BY PENN HILLS. TIME ESTIMATED FROM RADAR.
Jul 22, 2:29 PM EDT	TSTM WND DMG	2 Ne Analomink, PA	TREE DOWN ON WIRES ON SCHOOLHOUSE RD. TIME ESTIMATED FROM RADAR.
Jul 22, 2:30 PM EDT	TSTM WND DMG	2 Ne Analomink, PA	TREE DOWN ON A VEHICLE ON BRUSH DR. 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, 6.2 hours before the alert went out and 195 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: 15 J/kg
Mixed-layer CIN: -173 J/kg
Mixed-layer LCL: 1410 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 111 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

108 
WUUS51 KPHI 221810
SVRPHI
NJC041-PAC089-095-221900-
/O.NEW.KPHI.SV.W.0151.200722T1810Z-200722T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
210 PM EDT Wed Jul 22 2020

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Warren County in northwestern New Jersey...
  Central Monroe County in northeastern Pennsylvania...
  Northeastern Northampton County in eastern Pennsylvania...

* Until 300 PM EDT.

* At 210 PM EDT, a severe thunderstorm was located over Reeders, or 7
  miles south of Mount Pocono, moving northeast at 30 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...
  Mount Pocono, East Stroudsburg, Bangor, Pen Argyl, Wind Gap,
  Belvidere, East Bangor, Stormville, Henryville, Brodheadsville,
  Werry Lake, Gilbert, Delaware Water Gap, Tannersville, Alpine
  Mountain, Kresgeville, Sun Valley, Reeders, Saylorsburg and
  Analomink.

This includes the following highways...
 Interstate 80 in Pennsylvania between mile markers 295 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 9.
 Interstate 380 in Pennsylvania between mile markers 0 and 1.

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.

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

&&

LAT...LON 4115 7515 4114 7513 4114 7509 4108 7503
      4109 7497 4082 7503 4089 7551 4106 7546
      4123 7514
TIME...MOT...LOC 1810Z 240DEG 26KT 4102 7531 

HAIL...1.00IN
WIND...60MPH
 
$$

CMS

4 follow-up statements

216 
WWUS51 KPHI 221818
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
218 PM EDT Wed Jul 22 2020

NJC041-PAC089-095-221900-
/O.CON.KPHI.SV.W.0151.000000T0000Z-200722T1900Z/
Warren NJ-Monroe PA-Northampton PA-
218 PM EDT Wed Jul 22 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHWESTERN WARREN...CENTRAL MONROE AND NORTHEASTERN NORTHAMPTON
COUNTIES...

At 218 PM EDT, a severe thunderstorm was located over Analomink, or
near Mount Pocono, moving northeast at 35 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
Mount Pocono, East Stroudsburg, Bangor, Pen Argyl, Wind Gap,
Belvidere, East Bangor, Stormville, Henryville, Brodheadsville, Werry
Lake, Gilbert, Delaware Water Gap, Tannersville, Alpine Mountain,
Kresgeville, Sun Valley, Reeders, Saylorsburg and Analomink.

This includes the following highways...
 Interstate 80 in Pennsylvania between mile markers 295 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 9.
 Interstate 380 in Pennsylvania between mile markers 0 and 1.

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.

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 4115 7515 4114 7513 4114 7509 4108 7503
      4109 7497 4082 7503 4089 7551 4106 7546
      4123 7514
TIME...MOT...LOC 1818Z 234DEG 29KT 4106 7526 

HAIL...1.50IN
WIND...70MPH
 
$$

CMS

651 
WWUS51 KPHI 221826
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
226 PM EDT Wed Jul 22 2020

NJC041-PAC089-095-221900-
/O.CON.KPHI.SV.W.0151.000000T0000Z-200722T1900Z/
Warren NJ-Monroe PA-Northampton PA-
226 PM EDT Wed Jul 22 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHWESTERN WARREN...CENTRAL MONROE AND NORTHEASTERN NORTHAMPTON
COUNTIES...

At 225 PM EDT, a severe thunderstorm was located over Henryville, or
8 miles east of Mount Pocono, moving northeast at 30 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated. Numerous power outages have been reported 
         in the Scotrun and Tannersville area as these storms passed.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
East Stroudsburg, Bangor, Pen Argyl, Belvidere, East Bangor,
Stormville, Henryville, Brodheadsville, Werry Lake, Delaware Water
Gap, Tannersville, Alpine Mountain, Reeders, Saylorsburg, Analomink,
Scotrun, Columbia, Echo Lake, Paradise Valley and Stroudsburg.

This includes the following highways...
 Interstate 80 in Pennsylvania between mile markers 300 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 9.

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.

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 4115 7515 4114 7513 4114 7509 4108 7503
      4109 7497 4082 7503 4091 7543 4112 7534
      4123 7514
TIME...MOT...LOC 1825Z 240DEG 26KT 4109 7520 

HAIL...1.50IN
WIND...70MPH
 
$$

CMS

212 
WWUS51 KPHI 221840
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
240 PM EDT Wed Jul 22 2020

NJC041-PAC089-095-221900-
/O.CON.KPHI.SV.W.0151.000000T0000Z-200722T1900Z/
Warren NJ-Monroe PA-Northampton PA-
240 PM EDT Wed Jul 22 2020

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR NORTHWESTERN WARREN...EASTERN MONROE AND NORTHEASTERN NORTHAMPTON
COUNTIES...

At 240 PM EDT, a severe thunderstorm was located near Bushkill, or 14
miles east of Mount Pocono, moving northeast at 30 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Law enforcement. Several reports of trees and wires down 
         have been received from Tannersville and Analomink.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect 
         considerable tree damage. Wind damage is also likely to 
         mobile homes, roofs, and outbuildings.

Locations impacted include...
East Stroudsburg, Belvidere, East Bangor, Stormville, Werry Lake,
Analomink, Delaware Water Gap, Columbia, Echo Lake, Stroudsburg,
Portland, Arlington Heights, Shawnee, Marshalls Creek and Hidden
Lake.

This includes the following highways...
 Interstate 80 in Pennsylvania between mile markers 309 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 9.

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.

Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.

&&

LAT...LON 4115 7515 4114 7513 4114 7509 4108 7503
      4109 7497 4082 7503 4090 7526 4120 7520
      4123 7514
TIME...MOT...LOC 1840Z 240DEG 26KT 4115 7507 

HAIL...1.50IN
WIND...70MPH
 
$$

CMS

765 
WWUS51 KPHI 221853
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
253 PM EDT Wed Jul 22 2020

NJC041-PAC089-095-221902-
/O.EXP.KPHI.SV.W.0151.000000T0000Z-200722T1900Z/
Warren NJ-Monroe PA-Northampton PA-
253 PM EDT Wed Jul 22 2020

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WARREN...EASTERN
MONROE AND NORTHEASTERN NORTHAMPTON COUNTIES WILL EXPIRE AT 300 PM
EDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However, gusty 
winds are still possible with this thunderstorm.

This storm produced extensive tree damage in the East Stroudsburg, 
Analomink, and Tannersville areas.

LAT...LON 4115 7515 4114 7513 4114 7509 4108 7503
      4109 7497 4082 7503 4090 7526 4120 7520
      4123 7514
TIME...MOT...LOC 1852Z 240DEG 26KT 4118 7499 

$$

CMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 8:45 PM EDT	Special Weather Statement	PHI	Berks	30 min
Jul 21, 9:20 PM EDT	Special Weather Statement	PHI	Montgomery	25 min
Jul 22, 1:36 PM EDT	Special Weather Statement	PHI	Carbon	24 min
Jul 22, 1:58 PM EDT	Special Weather Statement	PHI	Monroe	32 min
Jul 22, 3:29 PM EDT	Special Weather Statement	PHI	Lebanon	46 min
Jul 22, 3:39 PM EDT	Severe Thunderstorm Warning	PHI	Berks	51 min
Jul 22, 4:01 PM EDT	Severe Thunderstorm Warning	PHI	Chester	22 min
Jul 22, 4:10 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Lehigh, Northampton	65 min
Jul 22, 4:25 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	50 min
Jul 22, 4:38 PM EDT	Severe Thunderstorm Warning	PHI	Chester	52 min
Jul 22, 4:49 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Carbon, Lehigh, Monroe, Northampton	56 min
Jul 22, 5:09 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Delaware, Lehigh, Montgomery and 1 more	66 min
Jul 22, 5:16 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Monroe, Northampton	59 min
Jul 22, 5:23 PM EDT	Areal Flood Advisory	PHI	Northampton	3 hr
Jul 22, 5:33 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	57 min
Jul 22, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	65 min
Jul 21, 10:57 PM EDT	Special Marine Warning	PHI		63 min
Jul 22, 3:04 PM EDT	Severe Thunderstorm Warning	PHI	Sussex	30 min
Jul 22, 3:18 PM EDT	Special Weather Statement	PHI	Morris, Warren	42 min
Jul 22, 3:50 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	29 min
Jul 22, 4:33 PM EDT	Special Weather Statement	PHI	Morris	57 min
Jul 22, 4:56 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset	49 min
Jul 22, 5:49 PM EDT	Special Marine Warning	PHI		86 min
Jul 22, 5:54 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	51 min
Jul 22, 6:04 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren	60 min
Jul 22, 6:12 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester, Salem	48 min
Jul 22, 6:17 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset	52 min
Jul 22, 6:46 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem	44 min
Jul 22, 6:47 PM EDT	Special Marine Warning	PHI		28 min
Jul 22, 6:52 PM EDT	Areal Flood Advisory	PHI	Middlesex, Somerset	113 min
Jul 22, 6:52 PM EDT	Special Marine Warning	PHI		41 min
Jul 22, 7:20 PM EDT	Special Marine Warning	PHI		55 min
Jul 22, 7:23 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more	52 min
Jul 22, 7:58 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Ocean	47 min
Jul 22, 7:59 PM EDT	Special Marine Warning	PHI		61 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.