Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 79, NWS Philadelphia/Mount Holly

June 19, 2006Lehigh County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2006, 4:34 PM EDT for Lehigh County, Northampton County, Pennsylvania. It was in force for 56 min. 5 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
Jun 19, 2006, 4:34 PM EDT (20:34 UTC)
Expired
Jun 19, 2006, 5:30 PM EDT
In force
56 min
Issued by
NWS Philadelphia/Mount Holly
Area
Counties, with a storm outline in the text

Counties Lehigh County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 127 km from the middle of the area, began a volume at 20:36 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

TimeReportWhereRemark
Jun 19, 4:40 PM EDTTSTM WND DMG8 Wnw Emmaus, PATREES AND WIRES DOWN COUNTYWIDE
Jun 19, 5:14 PM EDTTSTM WND DMG4 Nnw Allentown, PAESTIMATED WIND GUSTS 50-55 MPH. DECK UMBRELLAS OVERTURNED.
Jun 19, 5:15 PM EDTTSTM WND DMGBath, PATREES AND WIRES DOWN NEAR LOWER MOUNT BETHEL TOWNSHIP
Jun 19, 5:18 PM EDTTSTM WND DMG1 W Bethlehem, PATREES AND WIRES DOWN AROUND HANOVER TOWNSHIP
Jun 19, 5:38 PM EDTTSTM WND DMG2 W Alpha, NJTREES AND WIRES DOWN AROUND WESTERN PART OF COUNTY

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 8.6 hours before the alert went out and 141 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-pSkew-T log-p diagram, Phillips Aaf/Abe, MD at 12:00Z on 2006-06-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Phillips Aaf/Abe, MD at 12:00Z on 2006-06-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 28 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
1462 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
28 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KPHI 192034
SVRPHI
PAC077-095-192130-
/O.NEW.KPHI.SV.W.0079.060619T2034Z-060619T2130Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
434 PM EDT MON JUN 19 2006

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LEHIGH COUNTY IN EASTERN PENNSYLVANIA
  THIS INCLUDES THE CITY OF ALLENTOWN
  NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA
  THIS INCLUDES THE CITY OF BETHLEHEM

* UNTIL 530 PM EDT

* AT 432 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 10
  MILES SOUTHWEST OF SCHNECKSVILLE...OR ABOUT 16 MILES WEST OF
  ALLENTOWN...AND MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  SCHNECKSVILLE BY 445 PM EDT...
  ALLENTOWN BY 455 PM EDT...
  NORTHAMPTON BY 500 PM EDT...
  BATH AND BETHLEHEM BY 510 PM EDT...
  NAZARETH AND OLD ORCHARD BY 515 PM EDT...
  EASTON AND BELFAST BY 520 PM EDT...

LAT...LON 4068 7588 4051 7564 4063 7519 4088 7526

$$

OHARA
1 follow-up statement
000 
WWUS51 KPHI 192109
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
506 PM EDT MON JUN 19 2006

PAC077-095-192130-
/O.CON.KPHI.SV.W.0079.000000T0000Z-060619T2130Z/
LEHIGH PA-NORTHAMPTON PA-
506 PM EDT MON JUN 19 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM EDT
FOR CENTRAL NORTHAMPTON AND EASTERN LEHIGH COUNTIES...

AT 501 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS
LOCATED NEAR ANCIENT OAKS...OR ABOUT 6 MILES WEST OF ALLENTOWN...
MOVING NORTHEAST AT 25 MPH. DOPPLER RADAR WAS SHOWING WINDS 
OF 60 MPH AT 7000 FEET WITH THIS STORM.

A SECOND SEVERE STORM IN FAR EASTERN BERKS COUNTY IS ALSO EXPECTED
TO MOVE ACROSS THE EXTREME SOUTHERN PART OF LEHIGH COUNTY BETWEEN
NOW AND 530 PM. 

IT MAY BECOME NECESSARY TO EXTEND THE SEVERE THUNDERSTORM WARNING FOR 
A LONGER PERIOD OF TIME FOR NORTHAMPTON COUNTY.
 
THE FIRST SEVERE THUNDERSTORM WILL BE NEAR...
  CATASAUQUA...NORTH CATASAUQUA...COPLAY AND NORTHAMPTON BY 515 PM
  EDT...
  FOUNTAIN HILL BY 520 PM EDT...
  BATH...BETHLEHEM...FREEMANSBURG AND CHAPMAN BY 525 PM EDT...

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
MONDAY EVENING FOR NORTHERN DELAWARE AND NORTHEAST MARYLAND AND
NORTHWESTERN NEW JERSEY AND SOUTHEASTERN PENNSYLVANIA.

LAT...LON 4066 7560 4051 7562 4043 7552 4060 7523
      4090 7519

$$

TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 5:18 PM EDTSevere Thunderstorm WarningPHIBucks, Northampton42 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2006Every severe thunderstorm warning in 2006

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.