Alert archive / Pennsylvania / Special Weather Statements in 2016

Special Weather Statement, NWS Philadelphia/Mount Holly

August 11, 2016Sussex County, Warren County, New Jersey; 4 counties in Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 11, 2016, 10:39 PM EDT for Sussex County, Warren County, New Jersey; 4 counties in Pennsylvania. It was in force for 51 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
Aug 11, 2016, 10:39 PM EDT (02:39 UTC)
Expired
Aug 11, 2016, 11:30 PM EDT
In force
51 min
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 133 km from the middle of the area, began a volume at 02:43 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 00:00Z, 2.7 hours before the alert went out and 182 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 00:00Z on 2016-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 793 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 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 00:00Z on 2016-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 square meters per square second.1939Sfc1 km3 km6 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
793 J/kg
Mixed-layer CIN
-63 J/kg
Mixed-layer LCL
1333 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
127 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

466 
WWUS81 KPHI 120239
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1039 PM EDT THU AUG 11 2016
 
NJZ001-007-PAZ054-055-060>062-120330-
SUSSEX-WARREN-CARBON-MONROE-BERKS-NORTHAMPTON-LEHIGH-
1039 PM EDT THU AUG 11 2016

...STRONG THUNDERSTORMS WILL AFFECT WARREN...NORTHWESTERN
HUNTERDON...SUSSEX...NORTHWESTERN MORRIS...NORTHAMPTON...LEHIGH...
MONROE...NORTHEASTERN BERKS...NORTHWESTERN BUCKS...CARBON AND
NORTHWESTERN MONTGOMERY COUNTIES UNTIL ABOUT MIDNIGHT.

AT 1035 PM EDT...STRONG THUNDERSTORMS LOCATED IN CARBON AND
MONROE COUNTIES WERE MOVING SOUTHEAST AT 20 MPH. 

WIND GUSTS UP TO 40 MPH ARE POSSIBLE WITH THESE STORMS AS THEY
MOVE SLOWLY SOUTH AND EAST. 

FREQUENT CLOUD TO GROUND LIGHTNING AND TORRENTIAL RAINFALL IS ALSO
OCCURRING WITH THESE STORMS...AND MAY CAUSE LOCALIZED FLOODING. DO
NOT DRIVE YOUR VEHICLE THROUGH FLOODED ROADWAYS.


LAT...LON 4120 7437 4092 7465 4091 7476 4071 7497
      4042 7549 4045 7553 4036 7560 4062 7600
      4074 7576 4091 7599 4101 7573 4109 7577
      4112 7564 4123 7554 4125 7513 4115 7515
      4108 7503 4116 7490 4132 7480 4136 7469
TIME...MOT...LOC 0235Z 294DEG 19KT 4084 7554 
$$

JJM

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 11, 10:57 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Sussex, Warren4 hr
Aug 11, 11:13 PM EDTFlash Flood WarningPHIMorris, Sussex, Warren4 hr
Aug 12, 12:06 AM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset3 hr
Aug 12, 4:24 AM EDTSmall Craft AdvisoryPHI20 hr
Aug 12, 5:40 PM EDTSpecial Weather StatementPHIMorris50 min
Aug 12, 5:44 PM EDTSpecial Weather StatementPHIHunterdon, Somerset31 min
Aug 12, 6:11 PM EDTSpecial Weather StatementPHISomerset34 min
Aug 12, 3:04 AM EDTSpecial Weather StatementPHILehigh, Northampton56 min
Aug 12, 3:38 PM EDTHeat AdvisoryPHICarbon, Monroe27 hr
Aug 12, 3:53 PM EDTSpecial Weather StatementPHICarbon, Monroe52 min
Aug 12, 4:03 PM EDTSpecial Weather StatementPHIBerks, Chester57 min
Aug 12, 4:45 PM EDTSpecial Weather StatementPHILehigh, Northampton60 min
Aug 12, 4:49 PM EDTSevere Thunderstorm WarningPHIChester, Delaware, Montgomery41 min
Aug 12, 3:24 PM EDTSpecial Weather StatementPHICecil, Kent51 min

Nearby

Special Weather Statements in Pennsylvania, 2016Special Weather Statements in New Jersey, 2016Every special weather statement in 2016

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.