Alert archive / Pennsylvania / Tornado Warnings in 2015

Tornado Warning 6, NWS Philadelphia/Mount Holly

June 30, 2015Lehigh County, Pennsylvania

NWS Philadelphia/Mount Holly issued this tornado warning at Jun 30, 2015, 2:13 PM EDT for Lehigh County, Pennsylvania. It was in force for 32 min. 10 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 30, 2015, 2:13 PM EDT (18:13 UTC)
Expired
Jun 30, 2015, 2:45 PM EDT
In force
32 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

County Lehigh County, PA

The radar

The Philadelphia radar (KDIX), 128 km from the middle of the area, began a volume at 18:16 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 30, 2:16 PM EDTFUNNEL CLOUDFogelsville, PAFUNNEL CLOUD REPORTED.
Jun 30, 2:17 PM EDTFUNNEL CLOUDTrexlertown, PAFUNNEL CLOUD REPORTED NEAR THE TREXLERTOWN SHOPPING CENTER.
Jun 30, 2:25 PM EDTHAIL 1.75Orefield, PA
Jun 30, 2:33 PM EDTHAIL 0.88Coplay, PANICKEL SIZED HAIL REPORTED IN COPLAY.
Jun 30, 2:35 PM EDTTSTM WND DMGWhitehall Twp, PANUMEROUS TREES AND WIRES REPORTED DOWN IN WHITEHALL TOWNSHIP... COPLAY AND CATASAQUA.
Jun 30, 2:36 PM EDTTSTM WND DMGWhitehall Twp, PANWS SURVEY TEAM OBSERVED STRAIGHT LINE WIND DAMAGE. ESTIMATED MAX WIND OF MICROBURST WAS 80 MPH.
Jun 30, 2:39 PM EDTHAIL 1North Catasauqua, PA
Jun 30, 2:43 PM EDTHAIL 1.75Whitehall Twp, PA
Jun 30, 2:44 PM EDTTSTM WND DMGNorth Catasauqua, PA4 TO 5 HOMES DAMAGED.
Jun 30, 2:46 PM EDTTSTM WND GST 61Lehigh Valley Intl Airp, PA61 MPH GUST RECORDED AT THE LEHIGH VALLEY INTERNATIONAL AIRPORT.

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.

IssuedProductOfficeLasted
Jun 30, 1:21 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.2 hours before the alert went out and 142 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 2015-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 600 joules per kilogram.LCLLFCEL10008507005003002001001 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 2015-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
600 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
728 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.9

Open this sounding in Storm Lab

The text

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

321 
WFUS51 KPHI 301813
TORPHI
PAC077-301845-
/O.NEW.KPHI.TO.W.0006.150630T1813Z-150630T1845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
213 PM EDT TUE JUN 30 2015

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL LEHIGH COUNTY IN EASTERN PENNSYLVANIA...

* UNTIL 245 PM EDT
    
* AT 212 PM EDT...DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM
  CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED
  OVER CLAUSSVILLE...OR 10 MILES WEST OF ALLENTOWN...AND MOVING
  NORTHEAST AT 20 MPH.

* THIS DANGEROUS STORM WILL BE NEAR...
  ALLENTOWN...SCHNECKSVILLE AND COFFEETOWN AROUND 230 PM EDT.
  NEFFS AROUND 235 PM EDT.
  EMERALD AROUND 240 PM EDT.
  NORTHAMPTON...SLATINGTON AND WALNUTPORT AROUND 245 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
HOKENDAUQUA...FULLERTON...CATASAUQUA...COPLAY AND NORTH CATASAUQUA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4063 7578 4078 7562 4077 7560 4074 7559
      4072 7556 4073 7553 4071 7552 4066 7548
      4067 7543 4064 7540 4052 7564
TIME...MOT...LOC 1812Z 223DEG 18KT 4060 7569 

$$

MWG
1 follow-up statement
610 
WWUS51 KPHI 301837
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
237 PM EDT TUE JUN 30 2015

PAC077-301845-
/O.CON.KPHI.TO.W.0006.000000T0000Z-150630T1845Z/
LEHIGH PA-
237 PM EDT TUE JUN 30 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 PM EDT FOR
NORTHEASTERN LEHIGH COUNTY...
    
AT 237 PM EDT...TRAINED WEATHER SPOTTERS REPORTED A FUNNEL CLOUD. A
TORNADO MAY DEVELOP AT ANY TIME. THIS DANGEROUS STORM WAS LOCATED
OVER NEFFS...OR 8 MILES NORTHWEST OF ALLENTOWN...MOVING NORTHEAST AT
20 MPH.

THIS DANGEROUS STORM WILL BE NEAR...
  NORTHAMPTON AROUND 245 PM EDT.

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE
HOKENDAUQUA...FULLERTON...CATASAUQUA...COPLAY AND NORTH CATASAUQUA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW. MOVE TO A BASEMENT OR AN INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF YOU ARE IN A MOBILE
HOME OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND
PROTECT YOURSELF FROM FLYING DEBRIS.

&&

LAT...LON 4072 7556 4073 7553 4071 7552 4066 7548
      4067 7543 4064 7540 4056 7556
TIME...MOT...LOC 1837Z 223DEG 18KT 4069 7558 

$$

MWG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 10:01 AM EDTAreal Flood AdvisoryPHICarbon, Monroe4 hr
Jun 30, 12:37 PM EDTAreal Flood AdvisoryPHIBerks4 hr
Jun 30, 12:47 PM EDTSpecial Weather StatementPHIBerks43 min
Jun 30, 1:08 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh52 min
Jun 30, 1:47 PM EDTSpecial Weather StatementPHILehigh43 min
Jun 30, 1:48 PM EDTFlash Flood WarningPHIBerks4 hr
Jun 30, 1:55 PM EDTSpecial Weather StatementPHIChester50 min
Jun 30, 2:00 PM EDTTornado WarningPHIBerks, Chester30 min
Jun 30, 2:05 PM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe, Northampton55 min
Jun 30, 2:19 PM EDTSpecial Weather StatementPHIChester26 min
Jun 30, 2:26 PM EDTAreal Flood AdvisoryPHIBerks, Chester4 hr
Jun 30, 2:34 PM EDTSevere Thunderstorm WarningPHIBerks, Chester, Montgomery56 min
Jun 30, 2:41 PM EDTSevere Thunderstorm WarningPHIChester49 min
Jun 30, 2:42 PM EDTTornado WarningPHILehigh, Northampton33 min
Jun 30, 2:48 PM EDTSpecial Weather StatementPHIChester57 min
Jun 30, 2:52 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery38 min
Jun 30, 2:55 PM EDTFlash Flood WarningPHIBerks, Lehigh, Northampton4 hr
Jun 30, 3:00 PM EDTAreal Flood AdvisoryPHIBucks, Monroe, Northampton4 hr
Jun 30, 3:00 PM EDTSevere Thunderstorm WarningPHILehigh, Northampton60 min
Jun 30, 3:08 PM EDTAreal Flood AdvisoryPHIChester4 hr
Jun 30, 3:22 PM EDTTornado WarningPHIChester, Delaware, Montgomery23 min
Jun 30, 3:25 PM EDTSevere Thunderstorm WarningPHIChester37 min
Jun 30, 3:31 PM EDTSpecial Weather StatementPHILehigh44 min
Jun 30, 3:37 PM EDTAreal Flood AdvisoryPHICarbon, Lehigh, Monroe, Northampton4 hr
Jun 30, 3:43 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Philadelphia47 min
Jun 30, 3:45 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Delaware, Montgomery, Philadelphia45 min
Jun 30, 3:47 PM EDTSevere Thunderstorm WarningPHINorthampton43 min
Jun 30, 3:54 PM EDTFlash Flood WatchPHIBerks, Bucks, Carbon, Chester, Delaware, Lehigh and 4 more13 hr
Jun 30, 3:57 PM EDTAreal Flood AdvisoryPHIBucks, Chester, Delaware, Montgomery, Philadelphia4 hr
Jun 30, 4:22 PM EDTSpecial Weather StatementPHIMonroe23 min
Jun 30, 4:29 PM EDTSpecial Weather StatementPHIDelaware, Philadelphia31 min
Jun 30, 4:31 PM EDTSpecial Weather StatementPHICarbon29 min
Jun 30, 4:58 PM EDTAreal Flood AdvisoryPHIDelaware, Montgomery, Philadelphia3 hr
Jun 30, 4:59 PM EDTSpecial Weather StatementPHIPhiladelphia61 min
Jun 30, 5:03 PM EDTSpecial Weather StatementPHIMonroe27 min
Jun 30, 5:51 PM EDTSpecial Weather StatementPHIMonroe24 min
Jun 30, 6:03 PM EDTFlash Flood WarningPHICarbon, Monroe11 hr
Jun 30, 6:28 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton47 min
Jun 30, 7:13 PM EDTSevere Thunderstorm WarningPHIMonroe62 min

Nearby

Tornado Warnings in Pennsylvania, 2015Every tornado warning in 2015Tornadoes in 2015

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.