Alert archive / Pennsylvania / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 63, NWS Philadelphia/Mount Holly

July 7, 2013Carbon County, Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 7, 2013, 6:12 PM EDT for Carbon County, Monroe County, Pennsylvania. It was in force for 48 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
Jul 7, 2013, 6:12 PM EDT (22:12 UTC)
Expired
Jul 7, 2013, 7:00 PM EDT
In force
48 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon

Counties Carbon County, PA, Monroe County, PA

The radar

The Binghamton radar (KBGM), 148 km from the middle of the area, began a volume at 22:15 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 7, 4:45 PM EDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.2 hours before the alert went out and 234 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, Brookhaven, NY at 12:00Z on 2013-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1396 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, Brookhaven, NY at 12:00Z on 2013-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 52 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
1396 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1132 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
52 m²/s²
0-3 km storm-relative helicity
118 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

058 
WUUS51 KPHI 072212
SVRPHI
PAC025-089-072300-
/O.NEW.KPHI.SV.W.0063.130707T2212Z-130707T2300Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
612 PM EDT SUN JUL 7 2013

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN MONROE COUNTY IN NORTHEAST PENNSYLVANIA...
  SOUTHERN CARBON COUNTY IN NORTHEAST PENNSYLVANIA...

* UNTIL 700 PM EDT

* AT 608 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SHORT LINE OF SEVERE THUNDERSTORMS. THESE SEVERE STORMS WERE
  EXTENDED FROM NEW RINGGOLD...MOVING NORTHEAST AT 35 MPH.
  THESE STORMS ARE CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF
  60 MPH. 

* SEVERE THUNDERSTORMS WILL BE NEAR...
  NEW MAHONING AROUND 620 PM EDT...
  NESQUEHONING AROUND 625 PM EDT...
  JIM THORPE AND LEHIGHTON AROUND 630 PM EDT...
  PALMERTON AROUND 640 PM EDT...
  CHRISTMANS AND BELTZVILLE STATE PARK AROUND 645 PM EDT...
  PENN FOREST RESERVOIR AROUND 650 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SEVERE THUNDERSTORMS PRODUCE WINDS OF MORE THAN 57 MPH...OR HAIL ONE
INCH OR LARGER.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
SUNDAY EVENING FOR NORTHEAST MARYLAND AND NORTHERN NEW JERSEY AND
EASTERN PENNSYLVANIA.

&&

LAT...LON 4102 7558 4087 7542 4073 7577 4083 7590
TIME...MOT...LOC 2211Z 231DEG 32KT 4074 7590 4070 7591

$$

FORECASTER:  DRAG
2 follow-up statements
754 
WWUS51 KPHI 072233
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
633 PM EDT SUN JUL 7 2013

PAC025-089-072300-
/O.CON.KPHI.SV.W.0063.000000T0000Z-130707T2300Z/
MONROE PA-CARBON PA-
633 PM EDT SUN JUL 7 2013

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM EDT
FOR EAST CENTRAL CARBON AND SOUTHWESTERN MONROE COUNTIES...

AT 631 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A VERY SHORT LINE OF POTENTIALLY SEVERE THUNDERSTORMS 
CAPABLE OF PRODUCING DAMAGING WINDS TO ABOUT 60 MPH. THESE STORMS 
WERE LOCATED NEAR LEHIGHTON...MOVING NORTHEAST AT 35 MPH.

SEVERE THUNDERSTORMS WILL BE NEAR...
BELTZVILLE STATE PARK AROUND 645 PM EDT...
TRACHSVILLE AND PENN FOREST RESERVOIR AROUND 650 PM EDT...
FIDDLETOWN AROUND 655 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
SUNDAY EVENING FOR NORTHEAST MARYLAND AND NORTHERN NEW JERSEY AND
EASTERN PENNSYLVANIA.

&&

LAT...LON 4079 7568 4085 7574 4102 7558 4087 7542
TIME...MOT...LOC 2232Z 231DEG 32KT 4086 7571 4082 7572

$$

FORECASTER: DRAG
589 
WWUS51 KPHI 072241
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
641 PM EDT SUN JUL 7 2013

PAC025-089-072251-
/O.CAN.KPHI.SV.W.0063.000000T0000Z-130707T2300Z/
MONROE PA-CARBON PA-
641 PM EDT SUN JUL 7 2013

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL CARBON AND
SOUTHWESTERN MONROE COUNTIES IS CANCELLED...

THE STORM HAS WEAKENED TO BELOW SEVERE LIMITS...THEREFORE THE SEVERE
THUNDERSTORM WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT
SUNDAY EVENING FOR NORTHEAST MARYLAND AND NORTHERN NEW JERSEY AND
EASTERN PENNSYLVANIA.

LAT...LON 4079 7568 4085 7574 4102 7558 4087 7542
TIME...MOT...LOC 2241Z 231DEG 32KT 4091 7563 4087 7564

$$

FORECASTER:  DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 3:57 PM EDTSpecial Weather StatementPHIBerks, Carbon, Lehigh, Monroe3 hr
Jul 7, 4:41 PM EDTSpecial Weather StatementPHIBerks, Carbon, Chester, Lehigh, Northampton2 hr
Jul 7, 5:11 PM EDTSpecial Weather StatementPHIBerks, Carbon64 min
Jul 7, 5:31 PM EDTSpecial Weather StatementPHIBerks, Carbon59 min
Jul 7, 5:56 PM EDTSpecial Weather StatementPHICarbon, Monroe49 min
Jul 7, 6:20 PM EDTSpecial Weather StatementPHIBerks, Chester40 min
Jul 7, 6:29 PM EDTSevere Thunderstorm WarningPHIChester61 min
Jul 7, 6:51 PM EDTSpecial Weather StatementPHIMontgomery39 min
Jul 7, 7:08 PM EDTSpecial Weather StatementPHIMontgomery37 min
Jul 7, 7:22 PM EDTSpecial Weather StatementPHIDelaware38 min
Jul 7, 7:27 PM EDTSevere Thunderstorm WarningPHIChester, Delaware48 min
Jul 7, 7:34 PM EDTSpecial Weather StatementPHIBucks41 min
Jul 7, 7:53 PM EDTSpecial Weather StatementPHIDelaware, Philadelphia52 min

Nearby

Severe Thunderstorm Warnings in Pennsylvania, 2013Every severe thunderstorm warning in 2013

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.