Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 260, NWS Philadelphia/Mount Holly

July 22, 2019Morris County, Sussex County, Warren County, New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 22, 2019, 2:35 PM EDT for Morris County, Sussex County, Warren County, New Jersey. It was in force for 40 min. 7 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 22, 2019, 2:35 PM EDT (18:35 UTC)
Expired: Jul 22, 2019, 3:15 PM EDT
In force: 40 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ

The radar

The Philadelphia radar (KDIX), 129 km from the middle of the area, began a volume at 18:37 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 22, 3:07 PM EDT	TSTM WND DMG	1 Wnw Stanhope, NJ	DOWNED TREE ON INTERSTATE 80 NEAR THE U.S. HIGHWAY 206 INTERCHANGE. TIME ESTIMATED FROM RADAR.
Jul 22, 3:09 PM EDT	TSTM WND DMG	1 Ene Stanhope, NJ	DOWNED TREE ON BROOKLYN-STANHOPE ROAD NEAR FLORA AVENUE. TIME ESTIMATED FROM RADAR.
Jul 22, 3:10 PM EDT	HAIL 0.88	4.4 Sw Jefferson Twp, NJ
Jul 22, 3:12 PM EDT	TSTM WND DMG	Hopatcong, NJ	DOWNED TREES AND POWER LINES THROUGHOUT TOWN. TIME ESTIMATED FROM RADAR.
Jul 22, 3:14 PM EDT	TSTM WND DMG	1 Ene Landing, NJ	TREES AND WIRES DOWN ON OLIVER RD. TIME ESTIMATED FROM RADAR.
Jul 22, 3:14 PM EDT	TSTM WND DMG	Roxbury, NJ	MULTIPLE REPORTS OF WIRES DOWN NEAR ROXBURY. TIME ESTIMATED FROM RADAR.
Jul 22, 3:20 PM EDT	HAIL 0.88	Jefferson Twp, NJ	HAIL FELL FOR UP TO 15 MINUTES.

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 22, 2:17 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 6.6 hours before the alert went out and 148 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1598 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 27 m²/s²
0-3 km storm-relative helicity: 109 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted.

290 
WUUS51 KPHI 221835
SVRPHI
NJC027-037-041-221915-
/O.NEW.KPHI.SV.W.0260.190722T1835Z-190722T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
235 PM EDT Mon Jul 22 2019

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Central Morris County in northern New Jersey...
  Sussex County in northwestern New Jersey...
  Central Warren County in northwestern New Jersey...

* Until 315 PM EDT.

* At 234 PM EDT, severe thunderstorms were located along a line
  extending from near High Point to near Oxford, moving east at 20
  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...
  Port Jervis, Newton, Montague, Dover, Hopatcong, Hackettstown,
  Wharton, Rockaway, Blairstown, Mount Arlington, Franklin, Mendham,
  Stanhope, Hamburg, Netcong, Oxford, Ogdensburg, Sussex, Hope and
  Chester.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

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

&&

LAT...LON 4120 7437 4109 7450 4108 7449 4104 7450
      4105 7445 4102 7443 4103 7442 4101 7438
      4076 7455 4079 7507 4114 7493 4119 7488
      4128 7484 4135 7475 4136 7469
TIME...MOT...LOC 1834Z 275DEG 17KT 4135 7463 4082 7496 

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

CMS

2 follow-up statements

929 
WWUS51 KPHI 221849
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
249 PM EDT Mon Jul 22 2019

NJC027-037-041-221915-
/O.CON.KPHI.SV.W.0260.000000T0000Z-190722T1915Z/
Morris NJ-Sussex NJ-Warren NJ-
249 PM EDT Mon Jul 22 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR CENTRAL MORRIS...SUSSEX AND NORTHEASTERN WARREN COUNTIES...

At 249 PM EDT, severe thunderstorms were located along a line
extending from near Unionville to Great Meadows-Vienna, moving east
at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
Port Jervis, Newton, Montague, Dover, Hopatcong, Hackettstown,
Wharton, Rockaway, Mount Arlington, Franklin, Mendham, Stanhope,
Hamburg, Netcong, Oxford, Ogdensburg, Sussex, Hope, Chester and
Victory Gardens.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 4120 7437 4109 7450 4108 7449 4104 7450
      4105 7445 4102 7443 4103 7442 4101 7438
      4076 7455 4082 7500 4114 7493 4119 7488
      4128 7484 4135 7475 4136 7469
TIME...MOT...LOC 1849Z 260DEG 17KT 4135 7454 4086 7488 

HAIL...1.25IN
WIND...60MPH
 
$$

CMS

493 
WWUS51 KPHI 221906
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
306 PM EDT Mon Jul 22 2019

NJC041-221916-
/O.CAN.KPHI.SV.W.0260.000000T0000Z-190722T1915Z/
Warren NJ-
306 PM EDT Mon Jul 22 2019

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN WARREN COUNTY IS
CANCELLED...

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

A severe thunderstorm watch remains in effect until 1000 PM EDT for
northern and northwestern New Jersey.

LAT...LON 4120 7437 4109 7450 4104 7450 4105 7445
      4102 7443 4101 7438 4076 7455 4084 7480
      4088 7481 4091 7477 4101 7487 4114 7493
      4119 7488 4128 7484 4135 7475 4136 7469
TIME...MOT...LOC 1906Z 275DEG 17KT 4134 7445 4085 7479 

$$

NJC027-037-221915-
/O.CON.KPHI.SV.W.0260.000000T0000Z-190722T1915Z/
Morris NJ-Sussex NJ-
306 PM EDT Mon Jul 22 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 315 PM EDT
FOR CENTRAL MORRIS AND SUSSEX COUNTIES...

At 306 PM EDT, severe thunderstorms were located along a line
extending from near Florida to Hackettstown, moving east at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to vehicles is possible. Wind damage to roofs, 
         siding, trees, and power lines is possible.

Locations impacted include...
Port Jervis, Newton, Montague, Dover, Hopatcong, Hackettstown,
Wharton, Rockaway, Mount Arlington, Franklin, Mendham, Stanhope,
Hamburg, Netcong, Ogdensburg, Sussex, Victory Gardens, Branchville,
Andover and High Point.

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.

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 4120 7437 4109 7450 4104 7450 4105 7445
      4102 7443 4101 7438 4076 7455 4084 7480
      4088 7481 4091 7477 4101 7487 4114 7493
      4119 7488 4128 7484 4135 7475 4136 7469
TIME...MOT...LOC 1906Z 275DEG 17KT 4134 7445 4085 7479 

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...60MPH
 
$$

CMS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 21, 8:25 PM EDT	Special Weather Statement	PHI	Warren	50 min
Jul 21, 8:44 PM EDT	Severe Thunderstorm Warning	PHI	Warren	46 min
Jul 21, 9:05 PM EDT	Special Weather Statement	PHI	Morris	25 min
Jul 21, 9:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	51 min
Jul 21, 10:12 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Monmouth, Morris, Somerset	48 min
Jul 21, 10:13 PM EDT	Severe Thunderstorm Warning	PHI	Salem	47 min
Jul 21, 10:15 PM EDT	Special Marine Warning	PHI		60 min
Jul 21, 10:54 PM EDT	Severe Thunderstorm Warning	PHI	Gloucester, Salem	25 min
Jul 21, 10:58 PM EDT	Special Marine Warning	PHI		62 min
Jul 21, 11:02 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth	31 min
Jul 21, 11:27 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	48 min
Jul 21, 11:31 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden	44 min
Jul 21, 11:40 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Warren	50 min
Jul 21, 11:54 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	51 min
Jul 22, 12:00 AM EDT	Special Marine Warning	PHI		90 min
Jul 22, 12:16 AM EDT	Special Weather Statement	PHI	Mercer	29 min
Jul 22, 12:34 AM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	41 min
Jul 22, 1:50 PM EDT	Special Weather Statement	PHI	Warren	25 min
Jul 22, 2:00 PM EDT	Special Weather Statement	PHI	Sussex	45 min
Jul 22, 2:13 PM EDT	Special Weather Statement	PHI	Warren	32 min
Jul 22, 2:58 PM EDT	Small Craft Advisory	PHI		27 hr
Jul 22, 3:02 PM EDT	Areal Flood Advisory	PHI	Morris, Sussex, Warren	4 hr
Jul 22, 3:12 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex	48 min
Jul 22, 3:33 PM EDT	Areal Flood Advisory	PHI	Warren	7 hr
Jul 22, 3:43 PM EDT	Flash Flood Warning	PHI	Sussex	4 hr
Jul 22, 4:11 PM EDT	Areal Flood Advisory	PHI	Hunterdon, Warren	4 hr
Jul 22, 4:16 PM EDT	Severe Thunderstorm Warning	PHI	Cumberland, Gloucester, Salem	59 min
Jul 22, 4:24 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Sussex, Warren	51 min
Jul 22, 4:40 PM EDT	Areal Flood Advisory	PHI	Camden, Cumberland, Gloucester, Salem	114 min
Jul 22, 4:52 PM EDT	Special Marine Warning	PHI		53 min
Jul 22, 5:01 PM EDT	Severe Thunderstorm Warning	PHI	Morris, Sussex, Warren	44 min
Jul 22, 5:04 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Camden, Gloucester	41 min
Jul 22, 5:14 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Salem	61 min
Jul 22, 5:17 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Morris, Somerset, Warren	73 min
Jul 22, 5:34 PM EDT	Flash Flood Warning	PHI	Hunterdon, Morris, Sussex, Warren	4 hr
Jul 22, 5:40 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more	80 min
Jul 22, 5:43 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Camden, Hunterdon, Mercer, Middlesex and 4 more	3 hr
Jul 22, 5:50 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more	40 min
Jul 22, 5:52 PM EDT	Special Marine Warning	PHI		53 min
Jul 22, 6:09 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Ocean	51 min
Jul 22, 6:12 PM EDT	Special Marine Warning	PHI		93 min
Jul 22, 6:21 PM EDT	Areal Flood Advisory	PHI	Atlantic, Burlington, Cumberland, Monmouth, Ocean	4 hr
Jul 22, 6:27 PM EDT	Special Marine Warning	PHI		48 min
Jul 22, 6:27 PM EDT	Severe Thunderstorm Warning	PHI	Hunterdon, Middlesex, Monmouth, Morris, Somerset	34 min
Jul 22, 6:35 PM EDT	Flash Flood Warning	PHI	Hunterdon, Middlesex, Morris, Somerset	4 hr
Jul 22, 6:38 PM EDT	Special Marine Warning	PHI		67 min
Jul 22, 6:54 PM EDT	Severe Thunderstorm Warning	PHI	Atlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean	51 min
Jul 22, 7:39 PM EDT	Special Marine Warning	PHI		96 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 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.