Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 83, NWS Philadelphia/Mount Holly

May 29, 2019Berks County, Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at May 29, 2019, 3:43 PM EDT for Berks County, Lehigh County, Pennsylvania. It was in force for 62 min. 14 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: May 29, 2019, 3:43 PM EDT (19:43 UTC)
Expired: May 29, 2019, 4:45 PM EDT
In force: 62 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Berks County, PA, Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 145 km from the middle of the area, began a volume at 19:43 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
May 29, 3:56 PM EDT	TSTM WND DMG	1 Nnw Marion Twp, PA	DELAYED REPORT. DOWNED TREE AND WIRES ON STONE ROAD NEAR ROUTE 419 IN TULPEHOCKEN TWP. TIME ESTIMATED FROM RADAR.
May 29, 3:59 PM EDT	TSTM WND DMG	3 Sse Lenhartsville, PA	DELAYED REPORT OF TREE DOWN NEAR THE INTERSECTION OF CRYSTAL CAVE ROAD AND DUNKLES CHURCH ROAD IN RICHMOND TWP. TIME ESTIMATED FROM RADAR.
May 29, 4:12 PM EDT	TSTM WND DMG	Pike Twp, PA	DELAYED REPORT. SEVERAL REPORTS OF TREES AND POWER LINES DOWN IN PIKE TWP, INCLUDING ON HILL CHURCH ROAD, MERKLE ROAD, AND LUTZ ROAD. TIME ESTIMATED FROM RADAR.
May 29, 4:18 PM EDT	TSTM WND DMG	1 Sw Huffs Church, PA	DELAYED REPORT OF TREES AND POWER LINES DOWN ON LONG LANE IN HEREFORD TWP. TIME ESTIMATED FROM RADAR.
May 29, 4:18 PM EDT	TSTM WND DMG	1 Wsw Huffs Church, PA	DELAYED REPORT. SEVERAL REPORTS OF TREES DOWN ON CONRAD ROAD IN DISTRICT TWP. TIME ESTIMATED FROM RADAR.
May 29, 4:18 PM EDT	HAIL 1	Muhlenberg Twp, PA	SEVERAL REPORTS OF HAIL UP TO QUARTER SIZE IN LAURELDALE AND MUHLENBERG TWP. TIME ESTIMATED FROM RADAR.
May 29, 4:23 PM EDT	TSTM WND DMG	3 Nnw Exeter Twp, PA	DELAYED REPORT OF TREE DOWN ON FRIEDENSBURG ROAD IN LOWER ALSACE TWP. TIME ESTIMATED FROM RADAR.
May 29, 4:23 PM EDT	TSTM WND DMG	Mount Penn, PA	DELAYED REPORT OF TREES AND WIRES DOWN NEAR THE INTERSECTION OF 23RD STREET AND CUMBERLAND AVENUE. TIME ESTIMATED FROM RADAR.
May 29, 4:23 PM EDT	HAIL 0.25	Reading Regional Airpor, PA
May 29, 4:26 PM EDT	HAIL 1	Exeter Twp, PA	TIME ESTIMATED FROM RADAR.
May 29, 4:30 PM EDT	TSTM WND DMG	2 Sw Spring Twp, PA	MULTIPLE LARGE TREES SNAPPED OR UPROOTED. PUBLIC REPORT RELAYED BY EMERGENCY MANAGEMENT. TIME ESTIMATED.
May 29, 4:37 PM EDT	TSTM WND DMG	Earl Twp, PA	DELAYED REPORT. SEVERAL REPORTS OF TREES DOWN IN EARL TWP AND OLEY TWP, INCLUDING ON SHEEP HILL ROAD, PINE ROAD, AND SAW MILL ROAD IN EARL TWP AND MAIN STREET AND KAUFFMAN ROAD IN OLEY TWP. TIME ESTIMATED FROM RADAR.
May 29, 4:40 PM EDT	TSTM WND DMG	Douglass Twp, PA	DELAYED REPORT. SEVERAL REPORTS OF TREES AND WIRES DOWN IN DOUGLASS TWP, INCLUDING ON POPLAR ROAD, READING AVENUE, AND TROUT RUN ROAD. TIME ESTIMATED FROM RADAR.
May 29, 4:51 PM EDT	TSTM WND GST 77	2 Wsw Lenhartsville, PA

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
May 29, 1:10 PM EDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 7.7 hours before the alert went out and 198 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: 292 J/kg
Mixed-layer CIN: -123 J/kg
Mixed-layer LCL: 1463 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

786 
WUUS51 KPHI 291943
SVRPHI
PAC011-077-292045-
/O.NEW.KPHI.SV.W.0083.190529T1943Z-190529T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
343 PM EDT Wed May 29 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Berks County in eastern Pennsylvania...
  Central Lehigh County in eastern Pennsylvania...

* Until 445 PM EDT.

* At 343 PM EDT, a severe thunderstorm was located over Richland, or
  over Myerstown, moving east at 35 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Wind 
           damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Reading, Wyomissing, Birdsboro, Kutztown, Hamburg, Fleetwood,
  Sinking Spring, Laureldale, Womelsdorf, Wernersville, Newmanstown,
  Topton, Leesport, Shoemakersville, Bernville, Lyons, Strausstown,
  Lenhartsville, Spring Ridge and Claussville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect until 800 PM EDT for eastern and
southeastern Pennsylvania.

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted, act quickly and move to a
place of safety inside a sturdy structure such as a basement or small
interior room.

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

&&

LAT...LON 4051 7632 4064 7558 4028 7566 4023 7571
      4021 7576 4024 7603 4036 7621 4037 7623
      4043 7633
TIME...MOT...LOC 1943Z 276DEG 29KT 4038 7626 

HAIL...1.50IN
WIND...60MPH
 
$$

Iovino

1 follow-up statement

467 
WWUS51 KPHI 292022
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
422 PM EDT Wed May 29 2019

PAC011-077-292045-
/O.CON.KPHI.SV.W.0083.000000T0000Z-190529T2045Z/
Berks PA-Lehigh PA-
422 PM EDT Wed May 29 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR EASTERN BERKS AND CENTRAL LEHIGH COUNTIES...

At 422 PM EDT, a severe thunderstorm was located near Reading, moving
east at 35 mph.

HAZARD...Two inch hail and 70 mph wind gusts.

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...
Reading, Wyomissing, Birdsboro, Kutztown, Fleetwood, Laureldale,
Topton, Leesport, Shoemakersville, Lyons, Lenhartsville, Claussville,
Spring Ridge, Stowe, Shillington, West Reading, Boyertown, Mount
Penn, Mohnton and Kenhorst.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A tornado watch remains in effect until 800 PM EDT for eastern and
southeastern Pennsylvania.

A tornado watch remains in effect for the warned area. Tornadoes can
develop quickly from severe thunderstorms. Although a tornado is not
immediately likely, if one is spotted act quickly and move to a place
of safety inside a sturdy structure, such as a basement or small
interior room.

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

&&

LAT...LON 4064 7558 4028 7566 4023 7571 4021 7576
      4024 7599 4057 7596
TIME...MOT...LOC 2022Z 276DEG 29KT 4035 7585 

HAIL...2.00IN
WIND...70MPH
 
$$

Iovino

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 8:23 PM EDT	Tornado Warning	PHI	Monroe	37 min
May 28, 9:17 PM EDT	River Flood Warning	PHI	Chester	101 min
May 29, 3:18 AM EDT	Flash Flood Watch	PHI	Berks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more	18 hr
May 29, 2:19 PM EDT	Special Weather Statement	PHI	Lehigh	41 min
May 29, 2:26 PM EDT	Special Weather Statement	PHI	Montgomery	34 min
May 29, 2:30 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Lehigh, Montgomery, Northampton	60 min
May 29, 2:48 PM EDT	Special Weather Statement	PHI	Monroe	27 min
May 29, 2:59 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe	46 min
May 29, 3:10 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	65 min
May 29, 3:17 PM EDT	Tornado Warning	PHI	Bucks, Lehigh	28 min
May 29, 3:29 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Monroe, Northampton	46 min
May 29, 3:29 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	46 min
May 29, 3:38 PM EDT	Tornado Warning	PHI	Bucks	37 min
May 29, 3:43 PM EDT	Flash Flood Warning	PHI	Carbon, Monroe	4 hr
May 29, 3:43 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	47 min
May 29, 4:04 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	41 min
May 29, 4:09 PM EDT	Severe Thunderstorm Warning	PHI	Monroe, Northampton	51 min
May 29, 4:13 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Lehigh, Northampton	47 min
May 29, 4:16 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	27 min
May 29, 4:18 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery, Northampton	42 min
May 29, 4:27 PM EDT	Areal Flood Advisory	PHI	Berks, Bucks, Carbon, Chester, Lehigh, Monroe and 2 more	51 min
May 29, 4:35 PM EDT	Special Weather Statement	PHI	Berks, Carbon, Lehigh, Monroe, Northampton	25 min
May 29, 4:42 PM EDT	Severe Thunderstorm Warning	PHI	Carbon, Lehigh, Monroe, Northampton	48 min
May 29, 4:50 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Carbon, Chester, Lehigh, Montgomery, Northampton	40 min
May 29, 4:53 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery	67 min
May 29, 4:55 PM EDT	Flash Flood Warning	PHI	Berks, Bucks, Chester, Lehigh, Montgomery	4 hr
May 29, 5:08 PM EDT	Tornado Warning	PHI	Bucks, Montgomery	27 min
May 29, 5:14 PM EDT	Flash Flood Warning	PHI	Berks, Bucks, Carbon, Lehigh, Monroe, Northampton	3 hr
May 29, 5:23 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Bucks, Chester, Lehigh, Monroe, Montgomery and 1 more	34 min
May 29, 5:27 PM EDT	Flash Flood Warning	PHI	Bucks, Chester, Montgomery, Philadelphia	4 hr
May 29, 5:33 PM EDT	Tornado Warning	PHI	Bucks	27 min
May 29, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Bucks	66 min
May 29, 5:49 PM EDT	Severe Thunderstorm Warning	PHI	Berks, Chester, Delaware, Montgomery, Philadelphia	41 min
May 29, 6:06 PM EDT	Flash Flood Warning	PHI	Bucks	4 hr
May 29, 6:06 PM EDT	Severe Thunderstorm Warning	PHI	Bucks, Montgomery, Philadelphia	24 min
May 29, 6:22 PM EDT	Severe Thunderstorm Warning	PHI	Chester, Delaware, Montgomery, Philadelphia	53 min
May 29, 6:35 PM EDT	Flash Flood Warning	PHI	Berks, Chester, Delaware, Montgomery, Philadelphia	3 hr
May 29, 7:12 PM EDT	Areal Flood Advisory	PHI	Chester	3 hr

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2019 Every severe thunderstorm warning in 2019

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.