Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 56, NWS Philadelphia/Mount Holly

June 10, 2008Carbon County, Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 10, 2008, 6:57 PM EDT for Carbon County, Monroe County, Northampton County, Pennsylvania. It was in force for 48 min. 8 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 10, 2008, 6:57 PM EDT (22:57 UTC)
Expired
Jun 10, 2008, 7:45 PM EDT
In force
48 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Carbon County, PA, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 131 km from the middle of the area, began a volume at 22:59 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 10, 7:10 PM EDTTSTM WND DMG8 N Saylorsburg, PAWIRES DOWN IN BARTONSVILLE.
Jun 10, 7:17 PM EDTHAIL 1.25Brodheadsville, PAQUARTER TO HALF DOLLAR SIZE HAIL IN BROADHEADSVILLE.
Jun 10, 7:20 PM EDTTSTM WND DMG8 N Saylorsburg, PAWIRES DOWN IN BARTONSVILLE.
Jun 10, 7:20 PM EDTTSTM WND DMGN Saylorsburg, PAWIRES DOWN IN SAYLORSBURG
Jun 10, 7:20 PM EDTTSTM WND DMGSaylorsburg, PAWIRES DOWN IN SAYLORSBURG
Jun 10, 7:20 PM EDTTSTM WND DMGStroudsburg, PAWIRES DOWN IN STROUDSBURG
Jun 10, 7:25 PM EDTTSTM WND DMG2 Sw East Stroudsburg, PATREES DOWN IN SMITHFIELD TWP IN MARSHALLS CREEK
Jun 10, 7:30 PM EDTHAIL 1.25Brodheadsville, PAQUARTER TO HALF DOLLAR SIZE HAIL IN BROADHEADSVILLE.

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 10, 5:47 PM EDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.0 hours before the alert went out and 163 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 2008-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1286 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 2008-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 square meters per square second.1939Sfc1 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
1286 J/kg
Mixed-layer CIN
-135 J/kg
Mixed-layer LCL
1568 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS51 KPHI 102258
SVRPHI
PAC025-089-095-110015-
/O.NEW.KPHI.SV.W.0056.080610T2257Z-080611T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
657 PM EDT TUE JUN 10 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN NORTHAMPTON COUNTY IN EASTERN PENNSYLVANIA...
  SOUTHEASTERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...
  SOUTHERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 815 PM EDT

* AT 654 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND   
  DAMAGING WINDS TO 60 MPH.  THIS STORM WAS LOCATED NEAR             
  BERLINSVILLE...OR ABOUT 11 MILES NORTH OF ALLENTOWN...AND MOVING   
  NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  BEERSVILLE BY 705 PM...
  DANIELSVILLE BY 710 PM...
  ROSSLAND BY 740 PM...
  GILBERT BY 745 PM...
  BRODHEADSVILLE BY 750 PM...
  SAYLORSBURG BY 755 PM...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...FREQUENT CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM WEDNESDAY
MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.

LAT...LON 4109 7523 4083 7510 4066 7547 4071 7552
      4075 7556 4074 7559 4082 7564
TIME...MOT...LOC 2257Z 219DEG 14KT 4075 7554

$$

GORSE
1 follow-up statement
000 
WWUS51 KPHI 102345
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
742 PM EDT TUE JUN 10 2008

PAC025-089-095-102352-
/O.CAN.KPHI.SV.W.0056.000000T0000Z-080611T0015Z/
NORTHAMPTON PA-CARBON PA-MONROE PA-
742 PM EDT TUE JUN 10 2008

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN MONROE...SOUTHEASTERN
CARBON AND NORTHERN NORTHAMPTON COUNTIES IS CANCELLED...

EVEN THOUGH THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING 
HAS MOVED OUT OF THE AREA...ADDITIONAL THUNDERSTORMS WILL AFFECT THE 
AREA OVER THE NEXT SEVERAL HOURS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 100 AM EDT
WEDNESDAY MORNING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW
JERSEY AND EASTERN PENNSYLVANIA.

LAT...LON 4109 7523 4083 7510 4066 7547 4071 7552
      4075 7556 4074 7559 4082 7564
TIME...MOT...LOC 2342Z 219DEG 14KT 4089 7539

$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 10, 5:47 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe58 min
Jun 10, 5:51 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh54 min
Jun 10, 6:20 PM EDTSevere Thunderstorm WarningPHIMonroe40 min
Jun 10, 6:42 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh59 min
Jun 10, 6:47 PM EDTFlash Flood WarningPHIBerks, Lehigh3 hr
Jun 10, 7:02 PM EDTSevere Thunderstorm WarningPHIChester58 min
Jun 10, 7:13 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton77 min
Jun 10, 7:36 PM EDTSevere Thunderstorm WarningPHIBucks, Chester, Montgomery54 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2008Every severe thunderstorm warning in 2008

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.