Alert archive / New Jersey / Special Weather Statements in 2017

Special Weather Statement, NWS Philadelphia/Mount Holly

May 19, 2017Camden County, New Jersey

NWS Philadelphia/Mount Holly issued this special weather statement at May 19, 2017, 4:03 PM EDT for Camden County, New Jersey. It was in force for 27 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
May 19, 2017, 4:03 PM EDT (20:03 UTC)
Expired
May 19, 2017, 4:30 PM EDT
In force
27 min
Issued by
NWS Philadelphia/Mount Holly

County Camden County, NJ

The radar

The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 20:05 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

Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.1 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, Wallops Is Stn, VA at 12:00Z on 2017-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 722 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, Wallops Is Stn, VA at 12:00Z on 2017-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 181 square meters per square second.193958Sfc1 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
722 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1200 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
181 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

572 
WWUS81 KPHI 192003
SPSPHI

Special Weather Statement
National Weather Service Mount Holly NJ
403 PM EDT FRI MAY 19 2017

NJZ017>019-022-027-192030-
Northwestern Burlington-Camden-Atlantic-Southeastern
Burlington-Gloucester-
403 PM EDT FRI MAY 19 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN ATLANTIC...SOUTHERN
CAMDEN...EAST CENTRAL GLOUCESTER AND SOUTHEASTERN BURLINGTON
COUNTIES...

At 402 PM EDT, a strong thunderstorm was located over Chesilhurst, 
or 18 miles southeast of Gloucester City, moving east at 20 mph. 
Another strong thunderstorm is located 5 miles east of Glassboro, 
also moving east at 20 mph.

Winds up to 40 mph and nickel size hail are possible with these 
storms.

Locations impacted include...
Glassboro, Hammonton, Pitman, Clayton, Berlin, Shamong, Egg Harbor
City, Chesilhurst, Atco, Sicklerville, Wharton State Forest,
Williamstown, Elwood-Magnolia, Atsion, Batsto, Turnersville, Monroe
Township, Pine Hill, Clementon and Folsom.

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

LAT...LON 3970 7513 3980 7509 3979 7449 3949 7460
TIME...MOT...LOC 2002Z 285DEG 17KT 3973 7484 

$$

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 4:02 AM EDTSmall Craft AdvisoryPHI65 hr
May 19, 3:53 PM EDTSpecial Weather StatementPHIOcean37 min
May 19, 3:55 PM EDTSpecial Marine WarningPHI65 min
May 19, 4:57 PM EDTSpecial Marine WarningPHI93 min
May 19, 5:01 PM EDTSpecial Marine WarningPHI59 min
May 19, 5:48 PM EDTSpecial Marine WarningPHI87 min
May 19, 3:48 PM EDTSpecial Weather StatementPHICecil42 min
May 19, 4:21 PM EDTSevere Thunderstorm WarningPHICecil24 min
May 19, 4:40 PM EDTSpecial Weather StatementPHIKent35 min
May 19, 5:12 PM EDTSpecial Weather StatementPHIKent48 min
May 19, 7:58 PM EDTSpecial Weather StatementPHIQueen Anne's, Talbot62 min
May 19, 4:48 PM EDTSpecial Weather StatementPHINew Castle42 min
May 19, 5:24 PM EDTSpecial Weather StatementPHIKent36 min

Nearby

Special Weather Statements in New Jersey, 2017Every special weather statement in 2017

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.