Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 22, NWS Philadelphia/Mount Holly

April 26, 2019Kent County, New Castle County, Sussex County, Delaware; 4 counties in New Jersey; Caroline County, Maryland

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Apr 26, 2019, 5:07 PM EDT for Kent County, New Castle County, Sussex County, Delaware; 4 counties in New Jersey; Caroline County, Maryland. It was in force for 38 min. 4 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: Apr 26, 2019, 5:07 PM EDT (21:07 UTC)
Expired: Apr 26, 2019, 5:45 PM EDT
In force: 38 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Caroline County, MD, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ

The radar

The Dover AFB radar (KDOX), 45 km from the middle of the area, began a volume at 21:08 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
Apr 26, 5:28 PM EDT	TSTM WND DMG	Alloway, NJ	MULTIPLE TREES DOWN AND SHED DESTROYED.
Apr 26, 5:37 PM EDT	TSTM WND DMG	1 Sse Logan Twp., NJ	TREE DOWN ON US 322 EASTBOUND WEST OF I-295 IN LOGAN TOWNSHIP. LANES ARE BLOCKED. TIME ESTIMATED FROM RADAR.
Apr 26, 5:44 PM EDT	TSTM WND DMG	1 Ne Collingswood, NJ	DOWNED TREES CLOSED CUTHBERT BOULEVARD AND PARK BOULEVARD NEAR CROWNE PLAZA. TIME ESTIMATED FROM RADAR.
Apr 26, 5:50 PM EDT	TSTM WND DMG	1 Wsw Cherry Hill Twp, NJ	CONSIDERABLE DAMAGE IN CHERRY HILL. THUNDERSTORM WINDS LIFTED ROOFS ON THREE LARGE BUILDINGS ALONG A STRAIGHT PATH. TREES DOWN, POLES DOWN, AND SHOPPING CART CORRALS LIFTED ONTO CARS AT SHOPPING CENTER. TIME ESTIMATED FROM RADAR.

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
Apr 26, 1:33 PM EDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 12:00Z, 9.1 hours before the alert went out and 144 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: 44 J/kg
Mixed-layer CIN: -206 J/kg
Mixed-layer LCL: 1440 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 55 m²/s²
0-3 km storm-relative helicity: 137 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

630 
WUUS51 KPHI 262107
SVRPHI
DEC001-003-005-MDC011-NJC007-011-015-033-262145-
/O.NEW.KPHI.SV.W.0022.190426T2107Z-190426T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
507 PM EDT FRI APR 26 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Sussex County in southern Delaware...
  Central New Castle County in northern Delaware...
  Kent County in central Delaware...
  Southeastern Caroline County in eastern Maryland...
  Cumberland County in southern New Jersey...
  Salem County in southern New Jersey...
  Northwestern Camden County in southern New Jersey...
  Gloucester County in southern New Jersey...

* Until 545 PM EDT.

* At 507 PM EDT, severe thunderstorms were located along a line
  extending from Elam to Cheswold to near Federalsburg, moving east
  at 35 mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to roofs, siding, trees, and power lines is 
           possible.

* Locations impacted include...
  Philadelphia, Wilmington, Vineland, Dover, Millville, Bridgeton,
  Gloucester City, Georgetown, Deptford, West Deptford, Glassboro,
  Pennsville, Bellmawr, Woodbury, Smyrna, Milford, Pitman, Clayton,
  Carneys Point and Seaford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 900 PM EDT for central,
northern and southern Delaware...eastern Maryland...southern New
Jersey...and southeastern Pennsylvania.

LAT...LON 3858 7570 3864 7571 3868 7576 3920 7563
      3982 7562 3984 7554 3980 7541 3988 7515
      3993 7514 3995 7503 3928 7503 3919 7506
      3916 7515 3916 7517 3939 7549 3927 7537
      3905 7537 3892 7528 3883 7516 3857 7524
TIME...MOT...LOC 2107Z 255DEG 31KT 3984 7555 3922 7555 3867 7570 

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

MPS

2 follow-up statements

964 
WWUS51 KPHI 262127
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
527 PM EDT FRI APR 26 2019

DEC003-MDC011-262136-
/O.CAN.KPHI.SV.W.0022.000000T0000Z-190426T2145Z/
New Castle DE-Caroline MD-
527 PM EDT FRI APR 26 2019

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL NEW CASTLE AND
SOUTHEASTERN CAROLINE COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A tornado watch remains in effect until 900 PM EDT for central,
northern and southern Delaware...southern New Jersey...and
southeastern Pennsylvania.

LAT...LON 3858 7570 3979 7541 3988 7515 3993 7514
      3995 7503 3928 7503 3919 7506 3916 7517
      3939 7549 3919 7550 3892 7528 3883 7516
      3857 7524
TIME...MOT...LOC 2126Z 230DEG 60KT 3989 7538 3936 7524 3887 7543 3859
7557

$$

DEC001-005-NJC007-011-015-033-262145-
/O.CON.KPHI.SV.W.0022.000000T0000Z-190426T2145Z/
Sussex DE-Kent DE-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
527 PM EDT FRI APR 26 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR CENTRAL SUSSEX...EASTERN KENT...CUMBERLAND...SALEM...NORTHWESTERN
CAMDEN AND GLOUCESTER COUNTIES...

At 526 PM EDT, severe thunderstorms were located along a line
extending from Nether Providence Township to Fairton to near Milford
to near Laurel, moving northeast at 70 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Damage to roofs, siding, trees, and power lines is 
         possible.

Locations impacted include...
Philadelphia, Vineland, Dover, Millville, Bridgeton, Gloucester City,
Georgetown, Deptford, West Deptford, Glassboro, Bellmawr, Woodbury,
Milford, Pitman, Clayton, Seaford, Paulsboro, Salem, Magnolia and
Westville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

A tornado watch remains in effect until 900 PM EDT for central,
northern and southern Delaware...southern New Jersey...and
southeastern Pennsylvania.

LAT...LON 3858 7570 3979 7541 3988 7515 3993 7514
      3995 7503 3928 7503 3919 7506 3916 7517
      3939 7549 3919 7550 3892 7528 3883 7516
      3857 7524
TIME...MOT...LOC 2126Z 230DEG 60KT 3989 7538 3936 7524 3887 7543 3859
7557

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

MPS

859 
WWUS51 KPHI 262141
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
541 PM EDT FRI APR 26 2019

DEC001-005-NJC007-011-015-033-262150-
/O.EXP.KPHI.SV.W.0022.000000T0000Z-190426T2145Z/
Sussex DE-Kent DE-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
541 PM EDT FRI APR 26 2019

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SUSSEX...EASTERN
KENT...CUMBERLAND...SALEM...NORTHWESTERN CAMDEN AND GLOUCESTER
COUNTIES WILL EXPIRE AT 545 PM EDT...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. New Severe 
Thunderstorm Warnings are in effect for parts of southern New Jersey 
and for southern Delaware.

A tornado watch remains in effect until 900 PM EDT for central,
northern and southern Delaware...southern New Jersey...and
southeastern Pennsylvania.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
in Mount Holly NJ.

LAT...LON 3858 7570 3979 7541 3988 7515 3993 7514
      3995 7503 3928 7503 3919 7506 3916 7517
      3939 7549 3919 7550 3892 7528 3883 7516
      3857 7524
TIME...MOT...LOC 2140Z 255DEG 31KT 3992 7526 3939 7512 3890 7531 3862
7545

$$

MPS

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 9:52 AM EDT	Special Weather Statement	PHI	Kent	38 min
Apr 26, 10:05 AM EDT	Special Weather Statement	PHI	Sussex	40 min
Apr 26, 10:51 AM EDT	Special Weather Statement	PHI	Kent	24 min
Apr 26, 11:19 AM EDT	Special Weather Statement	PHI	Kent	41 min
Apr 26, 2:01 PM EDT	Areal Flood Advisory	PHI	Sussex	3 hr
Apr 26, 4:28 PM EDT	Severe Thunderstorm Warning	PHI	Kent, New Castle, Sussex	47 min
Apr 26, 4:59 PM EDT	Areal Flood Advisory	PHI	Kent, New Castle	4 hr
Apr 26, 5:15 PM EDT	Areal Flood Advisory	PHI	Kent, New Castle	4 hr
Apr 26, 5:37 PM EDT	Severe Thunderstorm Warning	PHI	Kent	38 min
Apr 26, 5:39 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	28 min
Apr 26, 3:41 AM EDT	Gale Watch	PHI		12 hr
Apr 26, 10:15 AM EDT	Special Weather Statement	PHI	Gloucester, Salem	30 min
Apr 26, 10:53 AM EDT	Special Weather Statement	PHI	Camden, Cumberland, Gloucester	37 min
Apr 26, 11:22 AM EDT	Special Marine Warning	PHI		23 min
Apr 26, 11:54 AM EDT	Special Weather Statement	PHI	Burlington, Camden	51 min
Apr 26, 12:30 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth	45 min
Apr 26, 12:41 PM EDT	Special Weather Statement	PHI	Atlantic, Cumberland	34 min
Apr 26, 1:44 PM EDT	Special Marine Warning	PHI		61 min
Apr 26, 1:53 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	37 min
Apr 26, 2:17 PM EDT	Special Weather Statement	PHI	Cape May	28 min
Apr 26, 2:33 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May	2 hr
Apr 26, 2:52 PM EDT	Special Marine Warning	PHI		53 min
Apr 26, 3:34 PM EDT	Special Marine Warning	PHI		56 min
Apr 26, 3:54 PM EDT	Gale Warning	PHI		23 hr
Apr 26, 4:29 PM EDT	Special Marine Warning	PHI		61 min
Apr 26, 5:16 PM EDT	Special Marine Warning	PHI		44 min
Apr 26, 5:44 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Hunterdon, Mercer	61 min
Apr 26, 5:56 PM EDT	Special Marine Warning	PHI		64 min
Apr 26, 5:57 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Gloucester, Hunterdon, Mercer and 4 more	4 hr
Apr 26, 6:12 PM EDT	Special Weather Statement	PHI	Atlantic, Cape May	33 min
Apr 26, 6:14 PM EDT	Areal Flood Advisory	PHI	Atlantic, Cape May, Cumberland	4 hr
Apr 26, 6:22 PM EDT	Special Weather Statement	PHI	Middlesex, Monmouth, Morris, Ocean, Somerset	113 min
Apr 26, 6:34 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Warren	2 hr
Apr 26, 6:39 PM EDT	Special Marine Warning	PHI		57 min
Apr 26, 10:23 AM EDT	Special Weather Statement	PHI	Caroline	37 min
Apr 26, 3:32 PM EDT	Severe Thunderstorm Warning	PHI	Caroline, Cecil, Kent, Queen Anne's, Talbot	58 min
Apr 26, 4:01 PM EDT	Tornado Warning	PHI	Cecil, Kent, Queen Anne's	29 min
Apr 26, 4:24 PM EDT	Tornado Warning	PHI	Cecil, Kent	36 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019 Severe Thunderstorm Warnings in Delaware, 2019 Severe Thunderstorm Warnings in Maryland, 2019 Every severe thunderstorm warning in 2019

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.