Alert archive / Pennsylvania / Special Weather Statements in 2010

Special Weather Statement, NWS Philadelphia/Mount Holly

September 13, 2010Sussex County, Warren County, New Jersey; Carbon County, Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Sep 13, 2010, 2:18 PM EDT for Sussex County, Warren County, New Jersey; Carbon County, Monroe County, Northampton County, Pennsylvania. It was in force for 57 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
Sep 13, 2010, 2:18 PM EDT (18:18 UTC)
Expired
Sep 13, 2010, 3:15 PM EDT
In force
57 min
Issued by
NWS Philadelphia/Mount Holly

Counties Sussex County, NJ, Warren County, NJ, Carbon County, PA, Monroe County, PA, Northampton County, PA

The radar

The Binghamton radar (KBGM), 137 km from the middle of the area, began a volume at 18:19 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 nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 6.3 hours before the alert went out and 197 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 2010-09-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°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 2010-09-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 9 square meters per square second.19395878Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
626 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
9 m²/s²
0-3 km storm-relative helicity
30 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.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Philadelphia/Mount Holly wrote its last area forecast discussion before this special weather statement went out at Sep 13, 1:54 PM EDT, 24 minutes earlier.

Area forecast discussion, Sep 13, 1:54 PM EDT, 24 minutes before
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Hazardous weather outlook, Sep 13, 1:48 PM EDT, 30 minutes before
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In the hours before

Special weather statement, Sep 13, 1:02 PM EDT, 1 hour 16 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
102 PM EDT MON SEP 13 2010

NJZ001-007>010-012>015-PAZ054-055-062-131815-
SUSSEX-WARREN-MORRIS-HUNTERDON-SOMERSET-MIDDLESEX-
WESTERN MONMOUTH-EASTERN MONMOUTH-MERCER-CARBON-MONROE-
NORTHAMPTON-
INCLUDING THE CITIES OF...NEWTON...WASHINGTON...MORRISTOWN...
FLEMINGTON...SOMERVILLE...NEW BRUNSWICK...FREEHOLD...SANDY HOOK...
TRENTON...JIM THORPE...STROUDSBURG...BETHLEHEM...EASTON
102 PM EDT MON SEP 13 2010

SCATTERED STRONG THUNDERSTORMS ARE EXPECTED TO RACE SOUTHEASTWARD
ACROSS NORTHEAST PENNSYLVANIA AND NORTHERN NEW JERSEY DURING MID
OR LATE AFTERNOON. ONE OR TWO STORMS MAY PRODUCE DAMAGING WIND
GUSTS.

THE PRIMARY THREAT FOR THUNDERSTORMS IN THE NORTHEAST PENNSYLVANIA
COUNTIES OF CARBON...MONROE AND NORTHAMPTON IS BETWEEN 2 PM AND 5
PM. THE THREAT FOR A STRONG STORM IN NORTHERN NEW JERSEY IS
BETWEEN 3 PM AND 6 PM.

DAMAGING LIGHTNING STRIKES AND SMALL HAIL WILL BE POSSIBLE.

PLEASE MONITOR LATER STATEMENTS ISSUED THIS AFTERNOON REGARDING
THUNDERSTORMS CURRENTLY DEVELOPING NEAR BINGHAMTON NEW YORK.

DRAG
Special weather statement, Sep 13, 2:18 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
218 PM EDT MON SEP 13 2010

NJZ001-007-PAZ054-055-062-131915-
CARBON PA-MONROE PA-NORTHAMPTON PA-SUSSEX NJ-WARREN NJ-
218 PM EDT MON SEP 13 2010

...A FEW SHOWERS OR EVEN STRONG THUNDERSTORMS WILL DEVELOP EARLY
THIS AFTERNOON...

AT 2:10 PM EDT...A FEW SHOWERS WERE DEVELOPING OVER THE SOUTHERN
POCONOS. SOME OF THESE SHOWERS COULD DEVELOP INTO STRONG
THUNDERSTORMS. HOWEVER...ANY THUNDERSTORMS ARE EXPECTED TO BE
SCATTERED.

A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR THE AREA UNTIL 8:00 PM
THIS EVENING. WIND GUSTS TO 50 MPH ARE POSSIBLE WITH ANY OF THE
THUNDERSTORMS...AND POSSIBLY NEAR OR OVER 60 MILES AN HOUR WITH THE
STRONGEST STORMS. ALSO...HAIL AND FREQUENT...DANGEROUS CLOUD TO
GROUND LIGHTNING ARE POSSIBLE FROM ANY OF THE THUNDERSTORMS THIS
AFTERNOON. ANY THUNDERSTORMS THIS AFTERNOON WILL MOVE RAPIDLY TOWARD
THE EAST...OR EAST-SOUTHEAST...AROUND 40 MILES AN HOUR.

LAT...LON 4120 7448 4067 7513 4070 7542 4095 7590
      4101 7575 4105 7578 4110 7577 4114 7570
      4113 7564 4123 7554 4126 7514 4116 7516
      4115 7509 4109 7503 4115 7491 4127 7484
      4132 7479 4133 7470

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 13, 3:18 PM EDTSpecial Weather StatementPHISussex57 min
Sep 13, 3:50 PM EDTSevere Thunderstorm WarningPHISussex55 min
Sep 13, 4:44 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex61 min
Sep 13, 4:53 PM EDTSpecial Weather StatementPHIWarren67 min
Sep 13, 5:03 PM EDTSpecial Weather StatementPHIWarren57 min
Sep 13, 5:10 PM EDTSevere Thunderstorm WarningPHIWarren50 min
Sep 13, 6:05 PM EDTSpecial Weather StatementPHIHunterdon, Middlesex, Somerset55 min
Sep 13, 6:10 PM EDTSpecial Weather StatementPHIHunterdon50 min
Sep 13, 7:00 PM EDTSpecial Weather StatementPHIMercer, Middlesex, Monmouth60 min
Sep 13, 7:03 PM EDTSpecial Marine WarningPHI57 min
Sep 13, 7:12 PM EDTSpecial Weather StatementPHIMonmouth48 min
Sep 13, 7:40 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Monmouth, Ocean22 min
Sep 13, 3:30 PM EDTSpecial Weather StatementPHIMonroe60 min
Sep 13, 4:08 PM EDTSevere Thunderstorm WarningPHIMonroe52 min
Sep 13, 4:35 PM EDTSevere Thunderstorm WarningPHICarbon55 min
Sep 13, 5:28 PM EDTSpecial Weather StatementPHINorthampton62 min

Nearby

Special Weather Statements in Pennsylvania, 2010Special Weather Statements in New Jersey, 2010Every special weather statement in 2010

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.