Alert archive / New Jersey / Tornado Warnings in 2020

Tornado Warning 32, NWS Philadelphia/Mount Holly

August 19, 2020Monmouth County, New Jersey

NWS Philadelphia/Mount Holly issued this tornado warning at Aug 19, 2020, 10:03 AM EDT for Monmouth County, New Jersey. It was in force for 27 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: Aug 19, 2020, 10:03 AM EDT (14:03 UTC)
Expired: Aug 19, 2020, 10:30 AM EDT
In force: 27 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Monmouth County, NJ

The radar

The Philadelphia radar (KDIX), 58 km from the middle of the area, began a volume at 14:07 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
Aug 19, 10:07 AM EDT	TSTM WND DMG	1 Nw Eatontown, NJ	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 NW EATONTOWN. BRANCHES DOWNED AND TRASH/RECYCLING BINS SCATTERED. TIME ESTIMATED FROM RADAR.
Aug 19, 10:16 AM EDT	TSTM WND DMG	1 Wsw Port-Au-Peck, NJ	LARGE TREE LIMBS BLOWN DOWN. PEA SIZED HAIL OCCURRING TOO.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 2.1 hours before the alert went out and 112 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: 30 J/kg
Mixed-layer CIN: -111 J/kg
Mixed-layer LCL: 1488 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 102 m²/s²
0-3 km storm-relative helicity: 119 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

248 
WFUS51 KPHI 191403
TORPHI
NJC025-191430-
/O.NEW.KPHI.TO.W.0032.200819T1403Z-200819T1430Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Mount Holly NJ
1003 AM EDT Wed Aug 19 2020

The National Weather Service in Mount Holly NJ has issued a

* Tornado Warning for...
  Northeastern Monmouth County in central New Jersey...

* Until 1030 AM EDT.
    
* At 1003 AM EDT, a severe thunderstorm capable of producing a
  tornado was located over Lincroft, or near Long Branch, moving east
  at 20 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Long Branch, Middletown, Tinton Falls, Red Bank, Elberon, Navesink,
  Lincroft, Eatontown, West Long Branch, Rumson, Little Silver,
  Oceanport, Shrewsbury, Deal and Oakhurst.

This includes Garden State Parkway between mile markers 106 and 114.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 4025 7397 4028 7414 4039 7415 4043 7407
      4041 7402 4044 7399 4043 7398 4042 7400
      4040 7399 4041 7398
TIME...MOT...LOC 1403Z 264DEG 16KT 4033 7410 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

NC

2 follow-up statements

426 
WWUS51 KPHI 191415
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1015 AM EDT Wed Aug 19 2020

NJC025-191430-
/O.CON.KPHI.TO.W.0032.000000T0000Z-200819T1430Z/
Monmouth NJ-
1015 AM EDT Wed Aug 19 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT FOR EAST
CENTRAL MONMOUTH COUNTY...
    
At 1014 AM EDT, a severe thunderstorm capable of producing a tornado
was located over Red Bank, or near Long Branch, moving east at 20
mph.

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Long Branch, Red Bank, Eatontown, West Long Branch, Rumson, Little
Silver, Oceanport and Shrewsbury.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Protecting yourself from immediate threats to life and safety shall
take priority.  Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 4031 7405 4032 7406 4036 7408 4039 7403
      4039 7398 4028 7397
TIME...MOT...LOC 1414Z 264DEG 16KT 4034 7403 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

NC

282 
WWUS51 KPHI 191425
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1025 AM EDT Wed Aug 19 2020

NJC025-191435-
/O.EXP.KPHI.TO.W.0032.000000T0000Z-200819T1430Z/
Monmouth NJ-
1025 AM EDT Wed Aug 19 2020

...THE TORNADO WARNING FOR EAST CENTRAL MONMOUTH COUNTY WILL EXPIRE
AT 1030 AM EDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.  However heavy rain is still possible with this
thunderstorm.

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

LAT...LON 4031 7405 4032 7406 4036 7408 4039 7403
      4039 7398 4028 7397
TIME...MOT...LOC 1425Z 264DEG 16KT 4035 7404 

$$

NC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 19, 8:43 AM EDT	Special Marine Warning	PHI		33 min
Aug 19, 9:55 AM EDT	Special Weather Statement	PHI	Monmouth	35 min
Aug 19, 10:01 AM EDT	Severe Thunderstorm Warning	PHI	Monmouth	29 min
Aug 19, 10:06 AM EDT	Special Marine Warning	PHI		54 min
Aug 19, 11:03 AM EDT	Special Marine Warning	PHI		57 min
Aug 19, 11:06 AM EDT	Special Marine Warning	PHI		54 min

Nearby

Tornado Warnings in New Jersey, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.