Alert archive / New Jersey / Special Weather Statements in 2021

Special Weather Statement, NWS Philadelphia/Mount Holly

August 26, 2021Burlington County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at Aug 26, 2021, 6:14 PM EDT for Burlington County, New Jersey. It was in force for 31 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 26, 2021, 6:14 PM EDT (22:14 UTC)
Expired
Aug 26, 2021, 6:45 PM EDT
In force
31 min
Issued by
NWS Philadelphia/Mount Holly
Hail
0.00 in
Wind
40

County Burlington County, NJ

The radar

The Philadelphia radar (KDIX), 32 km from the middle of the area, began a volume at 22:17 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 12:00Z, 10.2 hours before the alert went out and 189 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 2021-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 844 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 2021-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.1939Sfc1 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
844 J/kg
Mixed-layer CIN
-55 J/kg
Mixed-layer LCL
1230 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
11 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

677 
WWUS81 KPHI 262214
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
614 PM EDT Thu Aug 26 2021
 
NJZ019-262245-
Northwestern Burlington NJ-
614 PM EDT Thu Aug 26 2021

...A strong thunderstorm will impact portions of northwestern
Burlington County through 645 PM EDT...

At 614 PM EDT, Doppler radar was tracking a strong thunderstorm over
Mount Holly, or 16 miles south of Trenton. This storm was nearly
stationary.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Willingboro, Lumberton, Florence, Burlington, Mount Holly, Beverly,
Pemberton, Florence-Roebling, Jobstown, Jacksonville, Edgewater Park,
Nws Office, Pemberton Heights and Fort Dix.

This includes the following highways...
 New Jersey Turnpike between exits 5 and 6A.
 Interstate 295 in New Jersey between mile markers 44 and 53.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3991 7478 4005 7494 4013 7477 3996 7463
TIME...MOT...LOC 2214Z 262DEG 3KT 3999 7479 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

Gorse

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 3:30 PM EDTFlash Flood WatchPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Hunterdon and 8 more48 hr
Aug 26, 4:28 PM EDTAreal Flood AdvisoryPHIOcean3 hr
Aug 26, 1:20 PM EDTSevere Thunderstorm WarningPHIMonroe40 min
Aug 26, 5:02 PM EDTSpecial Weather StatementPHIMonroe28 min
Aug 26, 5:29 PM EDTSpecial Weather StatementPHIMonroe31 min
Aug 26, 5:35 PM EDTSpecial Weather StatementPHICarbon25 min
Aug 26, 5:59 PM EDTSpecial Weather StatementPHICarbon31 min
Aug 26, 6:09 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe51 min
Aug 26, 6:24 PM EDTAreal Flood AdvisoryPHICarbon3 hr
Aug 26, 6:56 PM EDTSpecial Weather StatementPHIPhiladelphia34 min
Aug 26, 7:29 PM EDTAreal Flood AdvisoryPHICarbon2 hr
Aug 26, 2:36 PM EDTSevere Thunderstorm WarningPHISussex43 min

Nearby

Special Weather Statements in New Jersey, 2021Every special weather statement in 2021

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.