Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 81, NWS Philadelphia/Mount Holly

June 19, 2006Warren County, New Jersey; Bucks County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 19, 2006, 5:18 PM EDT for Warren County, New Jersey; Bucks County, Northampton County, Pennsylvania. It was in force for 42 min. 2 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, 5:18 PM EDT (21:18 UTC)
Expired: Jun 19, 2006, 6:00 PM EDT
In force: 42 min
Issued by: NWS Philadelphia/Mount Holly
Area: Counties, with a storm outline in the text

Counties Warren County, NJ, Bucks County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 104 km from the middle of the area, began a volume at 21:18 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
Jun 19, 5:18 PM EDT	TSTM WND DMG	1 W Bethlehem, PA	TREES AND WIRES DOWN AROUND HANOVER TOWNSHIP
Jun 19, 5:38 PM EDT	TSTM WND DMG	2 W Alpha, NJ	TREES 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 watch it was issued in

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

Issued	Product	Office	Lasted
Jun 19, 4:47 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.3 hours before the alert went out and 150 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: 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 192118
SVRPHI
NJC041-PAC017-095-192200-
/O.NEW.KPHI.SV.W.0081.060619T2118Z-060619T2200Z/

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

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA
  THIS INCLUDES THE CITY OF BETHLEHEM
  SOUTHWESTERN WARREN COUNTY IN NORTHWEST NEW JERSEY
  NORTHWESTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA

* UNTIL 600 PM EDT

* AT 514 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL SIZE
  HAIL...AND DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM EAST BANGOR TO 15 MILES
  SOUTHWEST OF HELLERTOWN...OR ALONG A LINE EXTENDING FROM 16 MILES
  NORTH OF BETHLEHEM TO 10 MILES SOUTHWEST OF ALLENTOWN...AND MOVING
  EAST AT 30 MPH.

* SEVERE THUNDERSTORMS WILL BE NEAR...
  OLD ORCHARD...HELLERTOWN AND EASTON BY 530 PM EDT...
  BELVIDERE BY 535 PM EDT...
  OXFORD AND ALPHA BY 540 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.

LAT...LON 4067 7507 4058 7520 4055 7518 4056 7511
      4048 7515 4047 7544 4047 7544 4054 7534
      4058 7540 4065 7541 4090 7523 4092 7521
      4093 7495

$$

OHARA

1 follow-up statement

000 
WWUS51 KPHI 192139
SVSPHI

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

NJC041-PAC017-095-192200-
/O.CON.KPHI.SV.W.0081.000000T0000Z-060619T2200Z/
WARREN NJ-NORTHAMPTON PA-BUCKS PA-
539 PM EDT MON JUN 19 2006

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM EDT
FOR NORTHWESTERN BUCKS...EASTERN NORTHAMPTON AND SOUTHWESTERN WARREN
COUNTIES...

AT 535 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING PENNY
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
WERE LOCATED ALONG A LINE EXTENDING FROM PORTLAND TO 6 MILES EAST OF
ALPHA...OR ALONG A LINE EXTENDING FROM 28 MILES NORTHEAST OF
BETHLEHEM TO 17 MILES EAST OF BETHLEHEM...MOVING EAST AT 30 MPH.

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 4067 7507 4058 7520 4055 7518 4056 7511
      4048 7515 4048 7530 4047 7544 4047 7544
      4054 7534 4059 7537 4065 7541 4089 7516
      4092 7512 4093 7495

$$

MPD

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 4:34 PM EDT	Severe Thunderstorm Warning	PHI	Lehigh, Northampton	56 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2006 Severe Thunderstorm Warnings in New Jersey, 2006 Every 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.