Alert archive / New Jersey / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 265, NWS Philadelphia/Mount Holly

July 22, 20194 counties in New Jersey

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 22, 2019, 4:24 PM EDT for 4 counties in New Jersey. It was in force for 51 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
Jul 22, 2019, 4:24 PM EDT (20:24 UTC)
Expired
Jul 22, 2019, 5:15 PM EDT
In force
51 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

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

The radar

The Philadelphia radar (KDIX), 125 km from the middle of the area, began a volume at 20:24 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

TimeReportWhereRemark
Jul 22, 4:25 PM EDTTSTM WND DMG2 Se Blairstown, NJTREE DOWN ON WIRES ON HELLER HILL RD. TIME ESTIMATED FROM RADAR.
Jul 22, 4:40 PM EDTTSTM WND DMG1 Nw Blairstown Twp, NJDOWNED TREE ACROSS CEDARVILLE ROAD. TIME ESTIMATED FROM RADAR.
Jul 22, 4:41 PM EDTTSTM WND DMG2 N Hackettstown, NJSEVERAL REPORTS OF TREES AND WIRES DOWN IN AND AROUND HACKETTSTOWN, INCLUDING ON RIDGE LANE AND LINDSEY DRIVE. TIME ESTIMATED FROM RADAR.
Jul 22, 5:02 PM EDTTSTM WND DMG2 E Mansfield Twp, NJTREE DOWN ON WIRES WITH FIRE AT THE INTERSECTION OF STEPHENSBURG RD AND NJ-57. 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.

IssuedProductOfficeLasted
Jul 22, 2:17 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 8.4 hours before the alert went out and 167 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-pSkew-T log-p diagram, Brookhaven, NY at 12:00Z on 2019-07-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 12:00Z on 2019-07-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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.

884 
WUUS51 KPHI 222024
SVRPHI
NJC019-027-037-041-222115-
/O.NEW.KPHI.SV.W.0265.190722T2024Z-190722T2115Z/

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

The National Weather Service in Mount Holly NJ has issued a

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

* Until 515 PM EDT.

* At 424 PM EDT, severe thunderstorms were located along a line
  extending from Andover to Oxford, moving northeast 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...
  Port Jervis, Newton, Montague, Hopatcong, Hackettstown, Washington,
  Blairstown, Mount Arlington, Franklin, Stanhope, Hamburg, Netcong,
  Belvidere, Harmony, Oxford, Ogdensburg, Alpha, Sussex, Hope and
  Milford.

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 4104 7450 4105 7445
      4103 7443 4059 7519 4076 7519 4077 7513
      4082 7508 4085 7510 4086 7505 4097 7513
      4100 7512 4109 7497 4109 7499 4110 7498
      4116 7490 4132 7480 4136 7469
TIME...MOT...LOC 2024Z 236DEG 32KT 4100 7471 4083 7499 

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

CMS
2 follow-up statements
426 
WWUS51 KPHI 222043
SVSPHI

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

NJC019-027-037-041-222115-
/O.CON.KPHI.SV.W.0265.000000T0000Z-190722T2115Z/
Morris NJ-Hunterdon NJ-Sussex NJ-Warren NJ-
443 PM EDT Mon Jul 22 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHWESTERN MORRIS...NORTHWESTERN HUNTERDON...SUSSEX AND WARREN
COUNTIES...

At 443 PM EDT, severe thunderstorms were located along a line
extending from near Franklin to Allamuchy-Panther Valley, moving
northeast 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...
Port Jervis, Newton, Montague, Hopatcong, Hackettstown, Washington,
Blairstown, Mount Arlington, Franklin, Stanhope, Hamburg, Netcong,
Belvidere, Harmony, Oxford, Ogdensburg, Alpha, Sussex, Hope and
Milford.

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 4104 7450 4105 7445
      4103 7443 4059 7519 4076 7519 4077 7513
      4082 7508 4085 7510 4086 7505 4097 7513
      4100 7512 4109 7497 4109 7499 4110 7498
      4116 7490 4132 7480 4136 7469
TIME...MOT...LOC 2043Z 236DEG 32KT 4109 7453 4092 7482 

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

CMS
250 
WWUS51 KPHI 222107
SVSPHI

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

NJC019-027-037-041-222115-
/O.CON.KPHI.SV.W.0265.000000T0000Z-190722T2115Z/
Morris NJ-Hunterdon NJ-Sussex NJ-Warren NJ-
507 PM EDT Mon Jul 22 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM EDT
FOR NORTHWESTERN MORRIS...NORTHWESTERN HUNTERDON...SUSSEX AND WARREN
COUNTIES...

At 506 PM EDT, severe thunderstorms were located along a line
extending from near Lake Telemark to Beatyestown, moving east at 30
mph.

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

SOURCE...Law enforcement. Several reports of trees and wires down 
         have been received from Mansfield Township and Blairstown 
         Township as these storms passed.

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

Locations impacted include...
Port Jervis, Newton, Montague, Hopatcong, Hackettstown, Washington,
Blairstown, Mount Arlington, Franklin, Stanhope, Hamburg, Netcong,
Belvidere, Harmony, Oxford, Ogdensburg, Alpha, Sussex, Hope and
Milford.

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 4104 7450 4105 7445
      4103 7443 4059 7519 4076 7519 4077 7513
      4082 7508 4085 7510 4086 7505 4097 7513
      4100 7512 4109 7497 4109 7499 4110 7498
      4116 7490 4132 7480 4136 7469
TIME...MOT...LOC 2106Z 247DEG 27KT 4098 7455 4081 7484 

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

CMS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 8:25 PM EDTSpecial Weather StatementPHIWarren50 min
Jul 21, 8:44 PM EDTSevere Thunderstorm WarningPHIWarren46 min
Jul 21, 9:05 PM EDTSpecial Weather StatementPHIMorris25 min
Jul 21, 9:24 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Warren51 min
Jul 21, 10:12 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Monmouth, Morris, Somerset48 min
Jul 21, 10:13 PM EDTSevere Thunderstorm WarningPHISalem47 min
Jul 21, 10:15 PM EDTSpecial Marine WarningPHI60 min
Jul 21, 10:54 PM EDTSevere Thunderstorm WarningPHIGloucester, Salem25 min
Jul 21, 10:58 PM EDTSpecial Marine WarningPHI62 min
Jul 21, 11:02 PM EDTSevere Thunderstorm WarningPHIMonmouth31 min
Jul 21, 11:27 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean48 min
Jul 21, 11:31 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden44 min
Jul 21, 11:40 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren50 min
Jul 21, 11:54 PM EDTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean51 min
Jul 22, 12:00 AM EDTSpecial Marine WarningPHI90 min
Jul 22, 12:16 AM EDTSpecial Weather StatementPHIMercer29 min
Jul 22, 12:34 AM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean41 min
Jul 22, 1:50 PM EDTSpecial Weather StatementPHIWarren25 min
Jul 22, 2:00 PM EDTSpecial Weather StatementPHISussex45 min
Jul 22, 2:13 PM EDTSpecial Weather StatementPHIWarren32 min
Jul 22, 2:35 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren40 min
Jul 22, 2:58 PM EDTSmall Craft AdvisoryPHI27 hr
Jul 22, 3:02 PM EDTAreal Flood AdvisoryPHIMorris, Sussex, Warren4 hr
Jul 22, 3:12 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex48 min
Jul 22, 3:33 PM EDTAreal Flood AdvisoryPHIWarren7 hr
Jul 22, 3:43 PM EDTFlash Flood WarningPHISussex4 hr
Jul 22, 4:11 PM EDTAreal Flood AdvisoryPHIHunterdon, Warren4 hr
Jul 22, 4:16 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem59 min
Jul 22, 4:40 PM EDTAreal Flood AdvisoryPHICamden, Cumberland, Gloucester, Salem114 min
Jul 22, 4:52 PM EDTSpecial Marine WarningPHI53 min
Jul 22, 5:01 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren44 min
Jul 22, 5:04 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester41 min
Jul 22, 5:14 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Salem61 min
Jul 22, 5:17 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Warren73 min
Jul 22, 5:34 PM EDTFlash Flood WarningPHIHunterdon, Morris, Sussex, Warren4 hr
Jul 22, 5:40 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Camden, Cumberland, Gloucester, Mercer and 4 more80 min
Jul 22, 5:43 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Hunterdon, Mercer, Middlesex and 4 more3 hr
Jul 22, 5:50 PM EDTSevere Thunderstorm WarningPHIHunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset and 1 more40 min
Jul 22, 5:52 PM EDTSpecial Marine WarningPHI53 min
Jul 22, 6:09 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cape May, Cumberland, Ocean51 min
Jul 22, 6:12 PM EDTSpecial Marine WarningPHI93 min
Jul 22, 6:21 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Cumberland, Monmouth, Ocean4 hr
Jul 22, 6:27 PM EDTSpecial Marine WarningPHI48 min
Jul 22, 6:27 PM EDTSevere Thunderstorm WarningPHIHunterdon, Middlesex, Monmouth, Morris, Somerset34 min
Jul 22, 6:35 PM EDTFlash Flood WarningPHIHunterdon, Middlesex, Morris, Somerset4 hr
Jul 22, 6:38 PM EDTSpecial Marine WarningPHI67 min
Jul 22, 6:54 PM EDTSevere Thunderstorm WarningPHIAtlantic, Burlington, Cape May, Cumberland, Monmouth, Ocean51 min
Jul 22, 7:39 PM EDTSpecial Marine WarningPHI96 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2019Every 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.