Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008

Severe Thunderstorm Warning 185, NWS Philadelphia/Mount Holly

July 27, 20088 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 27, 2008, 3:12 PM EDT for 8 counties in New Jersey. It was in force for 63 min. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 27, 2008, 3:12 PM EDT (19:12 UTC)
Expired: Jul 27, 2008, 4:15 PM EDT
In force: 63 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Ocean County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 70 km from the middle of the area, began a volume at 19:15 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.

What was reported inside it

Time	Report	Where	Remark
Jul 27, 4:00 PM EDT	TSTM WND GST 45	Atlantic City, NJ	A THUNDERSTORM WIND GUST TO 45 MPH WAS MEASURED AT THE STEVENS INSTITUTE SITE IN ATLANTIC CITY.
Jul 27, 4:05 PM EDT	HAIL 0.5	Eldora, NJ	PEA TO DIME SIZE HAIL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 27, 11:26 AM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 7.2 hours before the alert went out and 170 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1209 J/kg
Mixed-layer CIN: -54 J/kg
Mixed-layer LCL: 775 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 62 m²/s²
0-3 km storm-relative helicity: 86 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WUUS51 KPHI 271914
SVRPHI
NJC001-005-007-009-011-015-029-033-272015-
/O.NEW.KPHI.SV.W.0185.080727T1912Z-080727T2015Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
312 PM EDT SUN JUL 27 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN BURLINGTON COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHERN CAMDEN COUNTY IN SOUTHERN NEW JERSEY...
  CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...
  CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN GLOUCESTER COUNTY IN SOUTHERN NEW JERSEY...
  EXTREME SOUTH CENTRAL OCEAN COUNTY IN SOUTHERN NEW JERSEY...
  SOUTHEASTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 415 PM EDT

* AT 310 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THE STORMS WERE LOCATED OVER
  CAMDEN...GLOUCESTER...SALEM AND CUMBERLAND COUNTIES...AND MOVING
  EAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  FOLSOM AND HAMMONTON...
  ELWOOD...
  EGG HARBOR CITY...
  POMONA...
  PORT REPUBLIC...ABSECON AND NEW GRETNA...
  BRIGANTINE BY 405 PM...

IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO
GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS
IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 800 PM SUNDAY
EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND
EASTERN PENNSYLVANIA.

LAT...LON 3950 7432 3953 7434 3953 7441 3949 7439
      3948 7430 3939 7436 3930 7455 3920 7464
      3900 7478 3892 7493 3892 7497 3916 7491
      3920 7504 3917 7514 3923 7518 3940 7546
      3983 7500 3954 7429 3952 7429 3952 7425
TIME...MOT...LOC 1912Z 287DEG 34KT 3962 7497

$$

IOVINO

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 27, 11:29 AM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington	46 min
Jul 27, 11:41 AM EDT	Severe Thunderstorm Warning	PHI	Monmouth	34 min
Jul 27, 11:50 AM EDT	Severe Thunderstorm Warning	PHI	Sussex, Warren	70 min
Jul 27, 12:06 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May	54 min
Jul 27, 12:12 PM EDT	Special Marine Warning	PHI		63 min
Jul 27, 12:41 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Ocean	49 min
Jul 27, 12:44 PM EDT	Special Marine Warning	PHI		61 min
Jul 27, 1:18 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	57 min
Jul 27, 1:19 PM EDT	Special Marine Warning	PHI		56 min
Jul 27, 1:44 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer	61 min
Jul 27, 1:58 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	62 min
Jul 27, 2:00 PM EDT	Severe Thunderstorm Warning	PHI	Salem	60 min
Jul 27, 2:06 PM EDT	Areal Flood Advisory	PHI	Monmouth	3 hr
Jul 27, 2:11 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Somerset	64 min
Jul 27, 2:14 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Mercer, Monmouth, Ocean	61 min
Jul 27, 2:17 PM EDT	Severe Thunderstorm Warning	PHI	Camden, Cumberland, Gloucester, Salem	58 min
Jul 27, 2:18 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Morris, Somerset	57 min
Jul 27, 2:30 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Mercer	2 hr
Jul 27, 2:31 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	59 min
Jul 27, 2:38 PM EDT	Special Marine Warning	PHI		67 min
Jul 27, 2:38 PM EDT	Severe Thunderstorm Warning	PHI	Middlesex, Monmouth, Ocean	67 min
Jul 27, 2:44 PM EDT	Special Marine Warning	PHI		2 hr
Jul 27, 2:50 PM EDT	Areal Flood Advisory	PHI	Middlesex, Morris, Somerset	115 min
Jul 27, 2:52 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Mercer, Monmouth, Ocean	53 min
Jul 27, 3:01 PM EDT	Special Marine Warning	PHI		119 min
Jul 27, 3:41 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Ocean	34 min
Jul 27, 3:49 PM EDT	Special Marine Warning	PHI		56 min
Jul 27, 4:05 PM EDT	Special Marine Warning	PHI		115 min
Jul 27, 4:09 PM EDT	Special Marine Warning	PHI		2 hr
Jul 27, 4:15 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Cape May	60 min
Jul 27, 4:39 PM EDT	Special Marine Warning	PHI		51 min
Jul 27, 4:44 PM EDT	Special Marine Warning	PHI		61 min
Jul 27, 5:45 PM EDT	Special Marine Warning	PHI		90 min
Jul 27, 5:47 PM EDT	Special Marine Warning	PHI		88 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2008 Every severe thunderstorm warning in 2008

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.