Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 43, NWS Philadelphia/Mount Holly

May 20, 20225 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 20, 2022, 3:25 PM EDT for 5 counties in Pennsylvania. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 20, 2022, 3:25 PM EDT (19:25 UTC)
Expired: May 20, 2022, 4:15 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 Berks County, PA, Carbon County, PA, Lehigh County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 137 km from the middle of the area, began a volume at 19:27 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 20, 11:35 AM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 7.4 hours before the alert went out and 232 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: 1078 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 90 m²/s²
0-3 km storm-relative helicity: 223 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

681 
WUUS51 KPHI 201925
SVRPHI
PAC011-025-077-089-095-202015-
/O.NEW.KPHI.SV.W.0043.220520T1925Z-220520T2015Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
325 PM EDT Fri May 20 2022

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  North central 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 415 PM EDT.

* At 324 PM EDT, severe thunderstorms were located along a line
  extending from Arrowhead Lake to near Beltzville State Park to near
  Wanamakers, moving northeast at 40 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...
  Allentown, Easton, Lehighton, Mount Pocono, Bethlehem, Forks,
  Northampton, East Stroudsburg, Tobyhanna, Wilson, Hellertown,
  Nazareth, Palmerton, Bangor, Jim Thorpe, Slatington, Pen Argyl,
  Wind Gap, Bath and Walnutport.

This includes the following highways...
 Northeast Extension between mile markers 56 and 95.
 Interstate 78 in Pennsylvania between mile markers 39 and 55, and
between mile markers 65 and 76.
 Interstate 80 in Pennsylvania between mile markers 280 and 314.
 Interstate 80 in New Jersey near mile marker 3.
 Interstate 380 in Pennsylvania between mile markers 0 and 13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM EDT for northwestern
New Jersey...and eastern and northeastern Pennsylvania.

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

A Tornado Watch remains in effect until 700 PM EDT for northwestern
New Jersey...and eastern and northeastern Pennsylvania.

&&

LAT...LON 4115 7515 4114 7509 4109 7504 4102 7507
      4098 7514 4094 7510 4075 7519 4073 7518
      4059 7524 4056 7586 4071 7582 4074 7576
      4076 7580 4113 7570 4112 7564 4123 7554
      4125 7513
TIME...MOT...LOC 1924Z 244DEG 36KT 4113 7555 4089 7565 4062 7580 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

3 follow-up statements

320 
WWUS51 KPHI 201943
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
343 PM EDT Fri May 20 2022

PAC011-201952-
/O.CAN.KPHI.SV.W.0043.000000T0000Z-220520T2015Z/
Berks PA-
343 PM EDT Fri May 20 2022

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BERKS COUNTY IS
CANCELLED...

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

A Tornado Watch remains in effect until 700 PM EDT for northwestern
New Jersey...and eastern and northeastern Pennsylvania.

LAT...LON 4115 7515 4114 7509 4109 7504 4102 7507
      4098 7514 4094 7510 4075 7519 4073 7518
      4059 7524 4057 7560 4078 7566 4092 7560
      4111 7559 4123 7546 4125 7513
TIME...MOT...LOC 1942Z 245DEG 36KT 4120 7537 4094 7544 4069 7560 

$$

PAC025-077-089-095-202015-
/O.CON.KPHI.SV.W.0043.000000T0000Z-220520T2015Z/
Lehigh PA-Carbon PA-Monroe PA-Northampton PA-
343 PM EDT Fri May 20 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR CENTRAL LEHIGH...EASTERN CARBON...MONROE AND NORTHAMPTON
COUNTIES...

At 342 PM EDT, severe thunderstorms were located along a line
extending from near Tobyhanna to Gilbert to Neffs, moving northeast
at 40 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...
Allentown, Easton, Mount Pocono, Bethlehem, Forks, Northampton, East
Stroudsburg, Tobyhanna, Wilson, Hellertown, Nazareth, Palmerton,
Bangor, Slatington, Pen Argyl, Wind Gap, Bath, Walnutport, Belfast
and West Easton.

This includes the following highways...
 Northeast Extension between mile markers 56 and 71.
 Interstate 78 in Pennsylvania between mile markers 52 and 55, and
between mile markers 65 and 76.
 Interstate 80 in Pennsylvania between mile markers 287 and 314.
 Interstate 80 in New Jersey near mile marker 3.
 Interstate 380 in Pennsylvania between mile markers 0 and 11.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM EDT for northwestern
New Jersey...and eastern and northeastern Pennsylvania.

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

&&

LAT...LON 4115 7515 4114 7509 4109 7504 4102 7507
      4098 7514 4094 7510 4075 7519 4073 7518
      4059 7524 4057 7560 4078 7566 4092 7560
      4111 7559 4123 7546 4125 7513
TIME...MOT...LOC 1942Z 245DEG 36KT 4120 7537 4094 7544 4069 7560 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

433 
WWUS51 KPHI 201955
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
355 PM EDT Fri May 20 2022

PAC025-077-202004-
/O.CAN.KPHI.SV.W.0043.000000T0000Z-220520T2015Z/
Lehigh PA-Carbon PA-
355 PM EDT Fri May 20 2022

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

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

A Tornado Watch remains in effect until 700 PM EDT for northwestern
New Jersey...and eastern and northeastern Pennsylvania.

LAT...LON 4076 7519 4079 7549 4098 7538 4119 7550
      4123 7539 4125 7513 4115 7515 4114 7509
      4109 7504 4102 7507 4098 7514 4094 7510
TIME...MOT...LOC 1954Z 270DEG 37KT 4114 7539 4098 7528 4079 7541 

$$

PAC089-095-202015-
/O.CON.KPHI.SV.W.0043.000000T0000Z-220520T2015Z/
Monroe PA-Northampton PA-
355 PM EDT Fri May 20 2022

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM EDT
FOR MONROE AND NORTHERN NORTHAMPTON COUNTIES...

At 354 PM EDT, severe thunderstorms were located along a line
extending from near Mount Pocono to near Stormville to near
Kunkletown, moving east at 45 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, Tobyhanna, Bangor, Pen Argyl, Wind
Gap, Belfast, East Bangor, Stormville, Henryville, Brodheadsville,
Kunkletown, Delaware Water Gap, Skytop, Tannersville, Mountainhome,
Alpine Mountain, Rossland, Reeders and Saylorsburg.

This includes the following highways...
 Interstate 80 in Pennsylvania between mile markers 296 and 314.
 Interstate 80 in New Jersey near mile marker 3.
 Interstate 380 in Pennsylvania between mile markers 0 and 10.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 700 PM EDT for northwestern
New Jersey...and eastern and northeastern Pennsylvania.

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

&&

LAT...LON 4076 7519 4079 7549 4098 7538 4119 7550
      4123 7539 4125 7513 4115 7515 4114 7509
      4109 7504 4102 7507 4098 7514 4094 7510
TIME...MOT...LOC 1954Z 270DEG 37KT 4114 7539 4098 7528 4079 7541 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann

082 
WWUS51 KPHI 202008
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
408 PM EDT Fri May 20 2022

PAC089-095-202018-
/O.EXP.KPHI.SV.W.0043.000000T0000Z-220520T2015Z/
Monroe PA-Northampton PA-
408 PM EDT Fri May 20 2022

...THE SEVERE THUNDERSTORM WARNING FOR MONROE AND NORTHERN
NORTHAMPTON COUNTIES WILL EXPIRE AT 415 PM EDT...
    
The storms which prompted the warning have weakened below severe 
limits, and is exiting the warned area. Therefore, the warning will 
be allowed to expire.  However gusty winds and heavy rain are still 
possible with these thunderstorms.

A Tornado Watch remains in effect until 700 PM EDT for northwestern
New Jersey...and eastern and northeastern Pennsylvania.

LAT...LON 4076 7519 4079 7549 4098 7538 4119 7550
      4123 7539 4125 7513 4115 7515 4114 7509
      4109 7504 4102 7507 4098 7514 4094 7510
TIME...MOT...LOC 2008Z 244DEG 36KT 4119 7525 4103 7514 4084 7527 

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
May 20, 3:15 AM EDT	Heat Advisory	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	59 hr
May 20, 1:45 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Montgomery	45 min
May 20, 2:22 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	53 min
May 20, 2:27 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	48 min
May 20, 2:30 PM EDT	Severe Thunderstorm Warning	PHI	Berks	45 min
May 20, 2:53 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Lehigh, Montgomery	52 min
May 20, 3:00 PM EDT	Severe Thunderstorm Warning	PHI	Delaware, Philadelphia	31 min
May 20, 3:05 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	29 min
May 20, 3:10 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	50 min
May 20, 3:28 PM EDT	Special Weather Statement	PHI	Philadelphia	32 min
May 20, 3:37 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Chester, Delaware, Montgomery, Philadelphia	53 min
May 20, 3:41 PM EDT	Severe Thunderstorm Warning Considerable damage threat	PHI	Bucks, Lehigh, Montgomery, Northampton	49 min
May 20, 3:52 PM EDT	Areal Flood Advisory	PHI	Bucks, Chester, Delaware, Lehigh, Montgomery, Philadelphia	3 hr
May 20, 3:55 PM EDT	Areal Flood Advisory	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	3 hr
May 20, 4:26 PM EDT	Areal Flood Advisory	PHI	Bucks, Philadelphia	3 hr
May 20, 5:37 PM EDT	Areal Flood Warning	PHI	Bucks, Montgomery	68 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2022 Every severe thunderstorm warning in 2022

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.