Alert archive / New Jersey / Special Weather Statements in 2011

Special Weather Statement, NWS Philadelphia/Mount Holly

June 12, 20114 counties in New Jersey; Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this special weather statement at Jun 12, 2011, 10:01 PM EDT for 4 counties in New Jersey; Northampton County, Pennsylvania. It was in force for 59 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
Jun 12, 2011, 10:01 PM EDT (02:01 UTC)
Expired
Jun 12, 2011, 11:00 PM EDT
In force
59 min
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 118 km from the middle of the area, began a volume at 02:01 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, 2.0 hours before the alert went out and 157 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 2011-06-13Temperature 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 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 2011-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
493 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
78 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.

553 
WWUS81 KPHI 130201
SPSPHI

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1001 PM EDT SUN JUN 12 2011

NJZ001-007>010-PAZ055-061-062-069-130300-
BUCKS PA-HUNTERDON NJ-LEHIGH PA-MONROE PA-MORRIS NJ-NORTHAMPTON PA-
SOMERSET NJ-SUSSEX NJ-WARREN NJ-
1001 PM EDT SUN JUN 12 2011

...SHOWERS AND THUNDERSTORMS WILL AFFECT BUCKS...HUNTERDON... 
LEHIGH...MONROE...MORRIS...NORTHAMPTON...SOMERSET ...SUSSEX AND 
WARREN COUNTIES...

AT 955 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
SHOWERS AND THUNDERSTORMS ALONG A LINE EXTENDING FROM 8 MILES EAST 
OF MONTAGUE TO 10 MILES NORTH OF ALLENTOWN...MOVING SOUTHEAST AT 20 
MPH. THE THUNDERSTORMS WILL BE NEAR NORTHAMPTON...COFFEETOWN AROUND 
1015 PM...VERNON VALLEY...FORKS AROUND 1030 PM...COOPERSBURG... 
HIGHLAND LAKE AROUND 1045 PM...BUDD LAKE AND NETCONG AROUND 1100 PM.

WIND GUSTS TO 35 MPH ARE POSSIBLE WITH ANY THUNDERSTORMS.

LAT...LON 4126 7451 4114 7442 4109 7449 4104 7449
      4105 7444 4102 7442 4100 7438 4051 7494
      4035 7538 4075 7565 4090 7520 4135 7469

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 12, 10:52 PM EDTSpecial Weather StatementPHIHunterdon, Morris, Somerset53 min
Jun 13, 10:56 AM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Middlesex, Monmouth, Ocean11 hr
Jun 12, 8:17 PM EDTSpecial Weather StatementPHIMonroe58 min

Nearby

Special Weather Statements in New Jersey, 2011Special Weather Statements in Pennsylvania, 2011Every special weather statement in 2011

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.