Alert archive / New Jersey / Special Weather Statements in 2013

Special Weather Statement, NWS Philadelphia/Mount Holly

November 1, 2013Hunterdon County, Sussex County, Warren County, New Jersey; Lehigh County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Nov 1, 2013, 2:21 AM EDT for Hunterdon County, Sussex County, Warren County, New Jersey; Lehigh County, Northampton County, Pennsylvania. It was in force for 84 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
Nov 1, 2013, 2:21 AM EDT (06:21 UTC)
Expired
Nov 1, 2013, 3:45 AM EDT
In force
84 min
Issued by
NWS Philadelphia/Mount Holly

Counties Hunterdon County, NJ, Sussex County, NJ, Warren County, NJ, Lehigh County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 115 km from the middle of the area, began a volume at 06:24 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

Brookhaven, NY (KOKX), launched 00:00Z, 6.4 hours before the alert went out and 201 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 00:00Z on 2013-11-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 00:00Z on 2013-11-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 236 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1174 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
236 m²/s²
0-3 km storm-relative helicity
298 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.

542 
WWUS81 KPHI 010621
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
221 AM EDT FRI NOV 1 2013

NJZ001-007>009-PAZ055-060>062-101-103-105-010745-
BERKS PA-HUNTERDON NJ-LEHIGH PA-MONROE PA-MORRIS NJ-NORTHAMPTON PA-
SUSSEX NJ-UPPER BUCKS PA-WARREN NJ-WESTERN CHESTER PA-
WESTERN MONTGOMERY PA-
221 AM EDT FRI NOV 1 2013

...A LINE OF SHOWERS AND STRONG THUNDERSTORMS WILL AFFECT EASTERN 
BERKS...HUNTERDON...LEHIGH...NORTHAMPTON...NORTHERN 
CHESTER...NORTHWESTERN BUCKS...NORTHWESTERN 
MONTGOMERY...SOUTHEASTERN MONROE...SUSSEX...WARREN AND WESTERN 
MORRIS COUNTIES...

AT 219 AM EDT...A LINE OF SHOWERS AND STRONG THUNDERSTORMS WAS 
LOCATED FROM ALLENTOWN TO READING TO NEW HOLLAND...MOVING NORTHEAST 
RAPIDLY AT 60 MPH.

WIND GUSTS OF 40 TO 50 MPH ARE POSSIBLE WITH THE STRONGEST STORMS. 

VERY HEAVY RAIN WILL FALL FROM THESE STORMS...AND WILL CAUSE WATER TO
POND ON ROADS AND FILL POOR DRAINAGE AREAS.   

THE LINE WILL BE NEAR NORTHAMPTON AROUND 230 AM...COLUMBIA AROUND 
245 AM...BLAIRSTOWN AROUND 300 AM...PELLETTOWN AROUND 315 AM AND 
SUCCASUNNA AROUND 330 AM.

LAT...LON 4126 7446 4125 7446 4060 7478 3983 7602
      4011 7595 4014 7589 4023 7601 4075 7572
      4081 7548 4086 7551 4111 7505 4110 7500
      4134 7463

$$
 
TFG

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 1, 3:14 AM EDTWind AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more9 hr
Nov 1, 7:53 AM EDTSevere Thunderstorm WarningPHIWarren67 min
Nov 1, 8:37 AM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Morris, Somerset, Sussex, Warren68 min
Nov 1, 9:11 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Gloucester, Mercer, Middlesex and 4 more79 min
Nov 1, 9:25 AM EDTSevere Thunderstorm WarningPHICumberland, Salem65 min
Nov 1, 10:09 AM EDTSpecial Marine WarningPHI81 min
Nov 1, 10:29 AM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cumberland, Monmouth, Ocean76 min
Nov 1, 1:40 PM EDTSmall Craft AdvisoryPHI3 days
Nov 1, 6:45 AM EDTSevere Thunderstorm WarningPHIBerks, Carbon, Lehigh, Monroe75 min
Nov 1, 8:27 AM EDTSevere Thunderstorm WarningPHINew Castle63 min

Nearby

Special Weather Statements in New Jersey, 2013Special Weather Statements in Pennsylvania, 2013Every special weather statement 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.