Alert archive / New Jersey / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 179, NWS Philadelphia/Mount Holly

July 19, 2011Atlantic County, Cumberland County, Salem County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 19, 2011, 5:52 PM EDT for Atlantic County, Cumberland County, Salem County, New Jersey. It was in force for 53 min. 1 report 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 19, 2011, 5:52 PM EDT (21:52 UTC)
Expired: Jul 19, 2011, 6:45 PM EDT
In force: 53 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon

Counties Atlantic County, NJ, Cumberland County, NJ, Salem County, NJ

The radar

The Philadelphia radar (KDIX), 74 km from the middle of the area, began a volume at 21:55 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 19, 6:00 PM EDT	TSTM WND DMG	Pittsgrove Twp, NJ	TREES DOWN

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

The nearest sounding before it

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.9 hours before the alert went out and 91 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: 1090 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1062 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 68 m²/s²
0-3 km storm-relative helicity: 101 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.6

Open this sounding in Storm Lab

The text

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

334 
WUUS51 KPHI 192152
SVRPHI
NJC001-011-033-192245-
/O.NEW.KPHI.SV.W.0179.110719T2152Z-110719T2245Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
552 PM EDT TUE JUL 19 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  WEST CENTRAL ATLANTIC COUNTY IN SOUTHERN NEW JERSEY...
  EASTERN CUMBERLAND COUNTY IN SOUTHERN NEW JERSEY...
  THIS INCLUDES THE CITIES OF...VINELAND...MILLVILLE...
  SOUTHEASTERN SALEM COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 645 PM EDT

* AT 547 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM.  THIS STORM WAS LOCATED NEAR OLIVET...OR 10
  MILES NORTHWEST OF VINELAND...AND MOVING SOUTHEAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ROSENHAYN AROUND 605 PM EDT...
  7 MILES SOUTHWEST OF BUENA AROUND 620 PM EDT...
  SOUTH VINELAND AND VINELAND AROUND 625 PM EDT...
  MILLVILLE AROUND 630 PM EDT...
  9 MILES SOUTHWEST OF MIZPAH AROUND 640 PM EDT...
  CUMBERLAND...PORT ELIZABETH...6 MILES NORTHEAST OF LAUREL LAKE AND
  6 MILES NORTH OF BRICKSBORO AROUND 645 PM EDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 GREATEST KILLERS.
REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE
STRUCK BY LIGHTNING.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3927 7500 3957 7534 3964 7518 3963 7514
      3951 7499 3955 7494 3948 7477
TIME...MOT...LOC 2152Z 316DEG 14KT 3954 7514

$$
JJM

1 follow-up statement

845 
WWUS51 KPHI 192240
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
640 PM EDT TUE JUL 19 2011

NJC001-011-033-192248-
/O.EXP.KPHI.SV.W.0179.000000T0000Z-110719T2245Z/
SALEM NJ-CUMBERLAND NJ-ATLANTIC NJ-
640 PM EDT TUE JUL 19 2011

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL ATLANTIC...
EASTERN CUMBERLAND AND SOUTHEASTERN SALEM COUNTIES WILL EXPIRE AT 645
PM EDT...

THE THUNDERSTORM RESPONSIBLE FOR THIS WARNING HAS WEAKENED SLIGHTLY 
DURING THE PAST 30 MINUTES...SO THE WARNING WILL BE ALLOWED TO 
EXPIRE. HOWEVER...THE SITUATION WILL BE MONITORED AND ADDITIONAL 
WARNINGS MAY BE NECESSARY IF THE THUNDERSTORM INCREASES IN STRENGTH 
ONCE AGAIN.

PLEASE REPORT HAIL OR STRONG WINDS TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1-877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3927 7500 3957 7534 3964 7518 3963 7514
      3951 7499 3955 7494 3948 7477
TIME...MOT...LOC 2238Z 316DEG 14KT 3941 7498

$$

JJM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 19, 6:02 AM EDT	Heat Advisory	PHI	Burlington, Camden, Gloucester, Mercer, Salem	13 hr
Jul 19, 2:13 PM EDT	Special Weather Statement	PHI	Cape May, Cumberland	92 min
Jul 19, 2:29 PM EDT	Excessive Heat Warning	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more	5 days
Jul 19, 4:11 PM EDT	Special Marine Warning	PHI		64 min
Jul 19, 4:25 PM EDT	Special Weather Statement	PHI	Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more	80 min
Jul 19, 5:04 PM EDT	Areal Flood Advisory	PHI	Cape May	3 hr
Jul 19, 6:00 PM EDT	Special Weather Statement	PHI	Camden, Gloucester	90 min
Jul 19, 6:20 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Camden, Gloucester	55 min
Jul 19, 6:28 PM EDT	Areal Flood Advisory	PHI	Atlantic, Camden, Cape May, Cumberland, Gloucester, Salem	3 hr
Jul 19, 7:08 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Salem	52 min
Jul 19, 7:28 PM EDT	Areal Flood Advisory	PHI	Cumberland, Salem	3 hr

Nearby

Severe Thunderstorm Warnings in New Jersey, 2011 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.