Alert archive / New Jersey / Severe Thunderstorm Warnings in 2016

Severe Thunderstorm Warning 159, NWS Philadelphia/Mount Holly

July 28, 2016Cape May County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 28, 2016, 6:12 PM EDT for Cape May County, New Jersey. It was in force for 63 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: Jul 28, 2016, 6:12 PM EDT (22:12 UTC)
Expired: Jul 28, 2016, 7:15 PM EDT
In force: 63 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 50 km from the middle of the area, began a volume at 22:15 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.

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 28, 1:27 PM EDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.2 hours before the alert went out and 127 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: 1169 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1097 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 90 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.0

Open this sounding in Storm Lab

The text

As transmitted.

652 
WUUS51 KPHI 282212
SVRPHI
NJC009-282315-
/O.NEW.KPHI.SV.W.0159.160728T2212Z-160728T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
612 PM EDT THU JUL 28 2016

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ  HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHWESTERN CAPE MAY COUNTY IN SOUTHERN NEW JERSEY...

* UNTIL 715 PM EDT

* AT 611 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES NORTHWEST
  OF NORTH CAPE MAY...OR 12 MILES NORTHWEST OF CAPE MAY...MOVING EAST
  AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

  SOURCE...RADAR INDICATED. 

  IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

* LOCATIONS IMPACTED INCLUDE...
  CAPE MAY...NORTH WILDWOOD...WILDWOOD CREST...AVALON...
  WEST CAPE MAY...STONE HARBOR...RIO GRANDE...CAPE MAY COURT HOUSE...
  SCOTCH BONNET...DIAMOND BEACH...GREEN CREEK...NORTH CAPE MAY...
  VILLAS...WEST WILDWOOD...ERMA AND WHITESBORO-BURLEIGH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TORNADOES CAN DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH A
TORNADO IS NOT IMMEDIATELY LIKELY...IF ONE IS SPOTTED...ACT QUICKLY
AND MOVE TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE SUCH AS A
BASEMENT OR SMALL INTERIOR ROOM.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM...AND
THE STORM WILL AFFECT THE BEACHES. FOR YOUR SAFETY...IMMEDIATELY MOVE
OFF THE BEACH AND SEEK SHELTER INDOORS.

&&

LAT...LON 3892 7497 3893 7500 3912 7494 3915 7492
      3909 7470 3891 7486
TIME...MOT...LOC 2211Z 284DEG 20KT 3903 7509 

HAIL...0.75IN
WIND...60MPH
 
$$

ROBERTSON

1 follow-up statement

954 
WWUS51 KPHI 282253
SVSPHI

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
653 PM EDT THU JUL 28 2016

NJC009-282315-
/O.CON.KPHI.SV.W.0159.000000T0000Z-160728T2315Z/
CAPE MAY NJ-
653 PM EDT THU JUL 28 2016

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR SOUTHWESTERN CAPE MAY COUNTY...

AT 652 PM EDT...A SEVERE THUNDERSTORM WAS LOCATED OVER STONE
HARBOR... OR 11 MILES NORTHEAST OF CAPE MAY...MOVING EAST AT 20 MPH.

HAZARD...60 MPH WIND GUSTS AND PENNY SIZE HAIL. 

SOURCE...RADAR INDICATED. 

IMPACT...EXPECT DAMAGE TO ROOFS...SIDING...AND TREES. 

LOCATIONS IMPACTED INCLUDE...
NORTH WILDWOOD...WILDWOOD CREST...AVALON...STONE HARBOR...
CAPE MAY COURT HOUSE...SCOTCH BONNET...RIO GRANDE...
WEST WILDWOOD AND WHITESBORO-BURLEIGH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF
A BUILDING.

FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM...AND
THE STORM WILL AFFECT THE BEACHES. FOR YOUR SAFETY...IMMEDIATELY MOVE
OFF THE BEACH AND SEEK SHELTER INDOORS.

&&

LAT...LON 3903 7487 3908 7490 3914 7489 3909 7471
      3909 7470 3896 7481
TIME...MOT...LOC 2252Z 275DEG 18KT 3906 7476 

HAIL...0.75IN
WIND...60MPH
 
$$

ROBERTSON

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 28, 2:03 PM EDT	Special Marine Warning	PHI		57 min
Jul 28, 2:20 PM EDT	Special Marine Warning	PHI		55 min
Jul 28, 2:30 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	45 min
Jul 28, 2:36 PM EDT	Areal Flood Advisory	PHI	Gloucester, Salem	4 hr
Jul 28, 3:04 PM EDT	Special Marine Warning	PHI		116 min
Jul 28, 3:54 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cumberland, Gloucester, Salem	4 hr
Jul 28, 3:58 PM EDT	Areal Flood Advisory	PHI	Burlington, Monmouth, Ocean	4 hr
Jul 28, 4:04 PM EDT	Special Weather Statement	PHI	Salem	41 min
Jul 28, 4:46 PM EDT	Special Weather Statement	PHI	Atlantic	59 min
Jul 28, 5:05 PM EDT	Special Marine Warning	PHI		85 min
Jul 28, 5:17 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Ocean	4 hr
Jul 28, 6:23 PM EDT	Special Marine Warning	PHI		67 min
Jul 28, 6:38 PM EDT	Special Marine Warning	PHI		97 min
Jul 28, 6:48 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	4 hr
Jul 28, 6:51 PM EDT	Severe Thunderstorm Warning	PHI	Cape May	28 min
Jul 28, 6:56 PM EDT	Special Marine Warning	PHI		64 min
Jul 28, 7:32 PM EDT	Special Marine Warning	PHI		88 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2016 Every severe thunderstorm warning in 2016

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.