Alert archive / Pennsylvania / Special Weather Statements in 2019

Special Weather Statement, NWS Philadelphia/Mount Holly

May 23, 2019Berks County, Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at May 23, 2019, 2:24 PM EDT for Berks County, Lehigh County, Pennsylvania. It was in force for 36 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 23, 2019, 2:24 PM EDT (18:24 UTC)
Expired: May 23, 2019, 3:00 PM EDT
In force: 36 min
Issued by: NWS Philadelphia/Mount Holly

Counties Berks County, PA, Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 149 km from the middle of the area, began a volume at 18:25 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 nearest sounding before it

Albany, NY (KALY), launched 12:00Z, 6.4 hours before the alert went out and 293 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: 1336 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 163 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this special weather statement went out at May 23, 1:33 PM EDT, 51 minutes earlier.

Area forecast discussion, May 23, 1:33 PM EDT, 51 minutes before

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Hazardous weather outlook, May 23, 1:12 PM EDT, 1 hour 12 minutes before

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In the hours before

Local storm report, May 23, 11:06 AM EDT, 3 hours 18 minutes before

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Special weather statement, May 23, 2:11 PM EDT, 13 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
211 PM EDT Thu May 23 2019

PAZ054-055-061-062-231845-
Lehigh-Monroe-Northampton-Carbon-
211 PM EDT Thu May 23 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT NORTHWESTERN LEHIGH...
CARBON...MONROE AND WESTERN NORTHAMPTON COUNTIES...

At 211 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near Moscow to near Freeland to Coaldale.
Movement was east at 65 mph.

Wind gusts up to 40 mph and pea size hail are possible with these
storms.

Locations impacted include...
Lehighton, Mount Pocono, Tobyhanna, Palmerton, Jim Thorpe,
Slatington, Nesquehoning, Weatherly, Walnutport, Pocono Pines, Lake
Harmony, Skytop, Tannersville, Long Pond, Kresgeville, Sun Valley,
Reeders, Beltzville State Park, McMichael and Canadensis.

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

To report severe weather, contact your nearest law enforcement
agency. They can relay your report to the National Weather Service
office in Mount Holly NJ.

LAT...LON 4115 7515 4114 7509 4113 7506 4070 7566
      4070 7582 4074 7576 4083 7590 4091 7599
      4101 7573 4103 7574 4105 7577 4109 7577
      4113 7569 4112 7564 4123 7554 4125 7513
TIME...MOT...LOC 1811Z 258DEG 59KT 4128 7558 4104 7585 4075 7619

MPS

Special weather statement, May 23, 2:24 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Mount Holly NJ
224 PM EDT Thu May 23 2019

PAZ054-055-060>062-231900-
Lehigh-Monroe-Northampton-Berks-Carbon-
224 PM EDT Thu May 23 2019

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT BERKS...LEHIGH...
SOUTHEASTERN CARBON...SOUTHWESTERN MONROE AND NORTHWESTERN
NORTHAMPTON COUNTIES...

At 224 PM EDT, radar indicated strong thunderstorms were located
along a line extending from near New Mahoning to Myerstown. Movement
was east at 60 mph.

Wind gusts up to 40 mph and pea size hail are possible with these
storms.

Locations impacted include...
Allentown, Reading, Lehighton, Wyomissing, Northampton, Palmerton,
Kutztown, Jim Thorpe, Hamburg, Slatington, Fleetwood, Sinking Spring,
Laureldale, Pen Argyl, Womelsdorf, Wind Gap, Bath, Wernersville,
Newmanstown and Walnutport.

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.

To report severe weather, contact your nearest law enforcement
agency. They can relay your report to the National Weather Service
office in Mount Holly NJ.

A severe thunderstorm watch remains in effect until 800 PM EDT for
eastern Pennsylvania.

LAT...LON 4054 7617 4058 7605 4057 7602 4065 7598
      4070 7583 4074 7576 4082 7589 4084 7586
      4098 7514 4026 7587 4027 7608 4036 7621
      4041 7630
TIME...MOT...LOC 1824Z 264DEG 52KT 4080 7588 4035 7633

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 3:24 AM EDT	Small Craft Advisory	PHI		28 hr
May 23, 2:46 PM EDT	Special Weather Statement	PHI	Morris, Sussex, Warren	29 min
May 23, 3:36 PM EDT	Special Weather Statement	PHI	Camden, Mercer, Middlesex, Somerset	24 min
May 23, 5:40 PM EDT	Special Marine Warning	PHI		29 min
May 23, 2:11 PM EDT	Special Weather Statement	PHI	Carbon, Monroe	34 min
May 23, 3:08 PM EDT	Special Weather Statement	PHI	Bucks, Chester, Delaware, Montgomery	37 min
May 23, 5:01 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	37 min
May 23, 5:37 PM EDT	Special Weather Statement	PHI	Sussex	38 min
May 23, 3:53 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Kent, Queen Anne's, Talbot	52 min
May 23, 4:27 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Queen Anne's, Talbot	63 min

Nearby

Special Weather Statements in Pennsylvania, 2019 Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.