Alert archive / New Jersey / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 175, NWS Philadelphia/Mount Holly

August 3, 2024Warren County, New Jersey; Monroe County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 2024, 3:41 PM EDT for Warren County, New Jersey; Monroe County, Pennsylvania. It was in force for 45 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 3, 2024, 3:41 PM EDT (19:41 UTC)
Expired
Aug 3, 2024, 4:26 PM EDT
In force
45 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Warren County, NJ, Monroe County, PA

The radar

The Binghamton radar (KBGM), 139 km from the middle of the area, began a volume at 19:42 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
Aug 3, 3:46 PM EDTTSTM WND DMG1 Ene Barrett Twp, PASeveral trees and wires down across Barrett Township. Time estimated from radar.
Aug 3, 3:57 PM EDTTSTM WND DMG3 Se Lake Monroe, PASeveral trees and wires down around Middle Smithfield Township, PA. 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
Aug 3, 1:20 PM EDTSevere Thunderstorm WatchSPC8 hr

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 7.7 hours before the alert went out and 193 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 2024-08-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 388 joules per kilogram.LCLLFCEL10008507005003002001001 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 2024-08-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
388 J/kg
Mixed-layer CIN
-82 J/kg
Mixed-layer LCL
974 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.9

Open this sounding in Storm Lab

The text

As transmitted.

792 
WUUS51 KPHI 031941
SVRPHI
NJC041-PAC089-032045-
/O.NEW.KPHI.SV.W.0175.240803T1941Z-240803T2045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
341 PM EDT Sat Aug 3 2024

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  Northwestern Warren County in northwestern New Jersey...
  Northeastern Monroe County in northeastern Pennsylvania...

* Until 445 PM EDT.

* At 341 PM EDT, a severe thunderstorm was located over Analomink, or
  7 miles southeast of Mount Pocono, moving northeast at 20 mph.

  HAZARD...60 mph wind gusts and quarter 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...
  East Stroudsburg, Henryville, Werry Lake, Analomink, Millbrook,
  Delaware Water Gap, Skytop, Tannersville, Mountainhome, Canadensis,
  Alpine Mountain, Scotrun, Echo Lake, Paradise Valley, Stroudsburg,
  Cresco, Arlington Heights, Shawnee, Marshalls Creek, and Hidden
  Lake.

This includes the following highways...
 Interstate 80 in Pennsylvania between mile markers 302 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 1.

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 this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.

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

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4110 7497
      4104 7491 4095 7517 4100 7532 4117 7534
      4124 7530 4125 7513
TIME...MOT...LOC 1941Z 238DEG 17KT 4104 7526 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann
2 follow-up statements
999 
WWUS51 KPHI 031953
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
353 PM EDT Sat Aug 3 2024

NJC041-PAC089-032045-
/O.CON.KPHI.SV.W.0175.000000T0000Z-240803T2045Z/
Warren NJ-Monroe PA-
353 PM EDT Sat Aug 3 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM EDT
FOR NORTHWESTERN WARREN AND NORTHEASTERN MONROE COUNTIES...

At 353 PM EDT, a severe thunderstorm was located near Alpine
Mountain, or 10 miles east of Mount Pocono, moving northeast at 20
mph.

HAZARD...60 mph wind gusts and quarter 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...
East Stroudsburg, Henryville, Werry Lake, Analomink, Millbrook,
Delaware Water Gap, Skytop, Tannersville, Mountainhome, Canadensis,
Alpine Mountain, Scotrun, Echo Lake, Paradise Valley, Stroudsburg,
Cresco, Arlington Heights, Shawnee, Marshalls Creek, and Hidden Lake.

This includes the following highways...
 Interstate 80 in Pennsylvania between mile markers 302 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 1.

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. 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 this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 4115 7515 4114 7509 4108 7503 4110 7497
      4104 7491 4095 7517 4100 7532 4108 7533
      4124 7525 4125 7513
TIME...MOT...LOC 1953Z 235DEG 18KT 4111 7516 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Staarmann
854 
WWUS51 KPHI 032026
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
426 PM EDT Sat Aug 3 2024

NJC041-PAC089-032035-
/O.CAN.KPHI.SV.W.0175.000000T0000Z-240803T2045Z/
Warren NJ-Monroe PA-
426 PM EDT Sat Aug 3 2024

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN WARREN AND
NORTHEASTERN MONROE COUNTIES IS CANCELLED...

The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
northwestern New Jersey...and eastern and northeastern Pennsylvania.

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 4115 7515 4114 7509 4108 7503 4110 7497
      4104 7491 4095 7517 4100 7532 4108 7533
      4124 7525 4125 7513
TIME...MOT...LOC 2021Z 238DEG 17KT 4119 7499 

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 9:12 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester, Salem48 min
Aug 2, 9:40 PM EDTFlash Flood WarningPHICamden, Gloucester, Salem4 hr
Aug 2, 10:31 PM EDTFlash Flood WarningPHIBurlington, Camden4 hr
Aug 3, 3:17 AM EDTHeat AdvisoryPHIBurlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more17 hr
Aug 3, 12:20 PM EDTFlood WatchPHIBurlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 7 more9 hr
Aug 3, 1:27 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex, Warren48 min
Aug 3, 2:05 PM EDTSevere Thunderstorm WarningPHIMorris, Sussex55 min
Aug 3, 5:40 PM EDTSpecial Marine WarningPHI2 hr
Aug 3, 6:04 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Monmouth41 min
Aug 3, 6:16 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden, Gloucester, Salem59 min
Aug 3, 6:31 PM EDTSevere Thunderstorm WarningPHICumberland, Gloucester, Salem74 min
Aug 3, 6:49 PM EDTSevere Thunderstorm WarningPHIBurlington, Mercer, Middlesex, Monmouth, Ocean, Somerset56 min
Aug 3, 6:52 PM EDTSpecial Marine WarningPHI2 hr
Aug 3, 7:25 PM EDTSpecial Marine WarningPHI2 hr
Aug 3, 7:30 PM EDTSpecial Marine WarningPHI2 hr
Aug 3, 7:57 PM EDTSpecial Marine WarningPHI63 min
Aug 3, 2:40 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe65 min
Aug 3, 2:53 PM EDTFlash Flood WarningPHICarbon117 min
Aug 3, 4:13 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh47 min
Aug 3, 5:38 PM EDTSevere Thunderstorm Warning Considerable damage threatPHIChester, Delaware97 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2024Severe Thunderstorm Warnings in Pennsylvania, 2024Every severe thunderstorm warning in 2024

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.