Alert archive / New Jersey / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 92, NWS Philadelphia/Mount Holly

June 26, 2023Morris County, Sussex County, Warren County, New Jersey; Monroe County, Northampton County, Pennsylvania

NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jun 26, 2023, 9:47 AM EDT for Morris County, Sussex County, Warren County, New Jersey; Monroe County, Northampton County, Pennsylvania. It was in force for 43 min. 1 report 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
Jun 26, 2023, 9:47 AM EDT (13:47 UTC)
Expired
Jun 26, 2023, 10:30 AM EDT
In force
43 min
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Morris County, NJ, Sussex County, NJ, Warren County, NJ, Monroe County, PA, Northampton County, PA

The radar

The Philadelphia radar (KDIX), 117 km from the middle of the area, began a volume at 13:47 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
Jun 26, 10:19 AM EDTTSTM WND DMGBlairstown Twp, NJTrees and large branches down on roadway.

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, 1.8 hours before the alert went out and 175 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 2023-06-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 369 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 2023-06-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 57 square meters per square second.1939Sfc1 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
369 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
807 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
57 m²/s²
0-3 km storm-relative helicity
81 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

407 
WUUS51 KPHI 261347
SVRPHI
NJC027-037-041-PAC089-095-261430-
/O.NEW.KPHI.SV.W.0092.230626T1347Z-230626T1430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
947 AM EDT Mon Jun 26 2023

The National Weather Service in Mount Holly NJ has issued a

* Severe Thunderstorm Warning for...
  West central Morris County in northern New Jersey...
  Southwestern Sussex County in northwestern New Jersey...
  Warren County in northwestern New Jersey...
  Southeastern Monroe County in northeastern Pennsylvania...
  Northeastern Northampton County in eastern Pennsylvania...

* Until 1030 AM EDT.

* At 947 AM EDT, a severe thunderstorm was located over Belvidere, or
  12 miles northeast of Easton, moving northeast at 25 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...
  Hopatcong, East Stroudsburg, Hackettstown, Washington, Blairstown,
  Bangor, Mount Arlington, Stanhope, Pen Argyl, Netcong, Belvidere,
  Harmony, Oxford, Alpha, Hope, East Bangor, Andover, Brass Castle,
  Werry Lake and Greendell.

This includes the following highways...
 Interstate 78 in New Jersey between mile markers 3 and 5.
 Interstate 80 in Pennsylvania between mile markers 312 and 314.
 Interstate 80 in New Jersey between mile markers 0 and 31.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4091 7460 4078 7488 4078 7490 4077 7491
      4065 7516 4085 7528 4114 7508 4108 7503
      4109 7500 4115 7491
TIME...MOT...LOC 1347Z 218DEG 24KT 4084 7512 

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

$$

MJL
2 follow-up statements
091 
WWUS51 KPHI 261415
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1015 AM EDT Mon Jun 26 2023

PAC089-095-261424-
/O.CAN.KPHI.SV.W.0092.000000T0000Z-230626T1430Z/
Monroe PA-Northampton PA-
1015 AM EDT Mon Jun 26 2023

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN MONROE AND
NORTHEASTERN NORTHAMPTON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4115 7491 4091 7460 4077 7499 4099 7513
      4104 7503 4106 7501 4108 7498 4110 7497
      4109 7499
TIME...MOT...LOC 1414Z 218DEG 24KT 4099 7497 

$$

NJC027-037-041-261430-
/O.CON.KPHI.SV.W.0092.000000T0000Z-230626T1430Z/
Morris NJ-Sussex NJ-Warren NJ-
1015 AM EDT Mon Jun 26 2023

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT
FOR WEST CENTRAL MORRIS...SOUTHWESTERN SUSSEX AND WARREN COUNTIES...

At 1014 AM EDT, a severe thunderstorm was located over Blairstown, or
12 miles west of Newton, moving northeast at 30 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...
Hopatcong, Hackettstown, Blairstown, Mount Arlington, Stanhope,
Netcong, Oxford, Hope, Andover, Great Meadows-Vienna, Flatbrookville,
Allamuchy-Panther Valley, Greendell, Millbrook, Five Points, Budd
Lake, Beatyestown and Beattyestown.

This includes Interstate 80 in New Jersey between mile markers 5 and
30.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4115 7491 4091 7460 4077 7499 4099 7513
      4104 7503 4106 7501 4108 7498 4110 7497
      4109 7499
TIME...MOT...LOC 1414Z 218DEG 24KT 4099 7497 

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

$$

MJL
566 
WWUS51 KPHI 261427
SVSPHI

Severe Weather Statement
National Weather Service Mount Holly NJ
1027 AM EDT Mon Jun 26 2023

NJC027-037-041-261437-
/O.EXP.KPHI.SV.W.0092.000000T0000Z-230626T1430Z/
Morris NJ-Sussex NJ-Warren NJ-
1027 AM EDT Mon Jun 26 2023

...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL MORRIS...
SOUTHWESTERN SUSSEX AND WARREN COUNTIES WILL EXPIRE AT 1030 AM EDT...
                
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 will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

LAT...LON 4115 7491 4091 7460 4077 7499 4099 7513
      4104 7503 4106 7501 4108 7498 4110 7497
      4109 7499
TIME...MOT...LOC 1427Z 218DEG 24KT 4104 7491 

$$

MJL

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 3:19 AM EDTSmall Craft AdvisoryPHI63 hr
Jun 26, 3:33 AM EDTFlood WatchPHIHunterdon, Mercer, Middlesex, Morris, Somerset, Sussex and 1 more23 hr
Jun 26, 9:18 AM EDTSevere Thunderstorm WarningPHIWarren42 min
Jun 26, 10:16 AM EDTSpecial Weather StatementPHICamden14 min
Jun 26, 10:43 AM EDTSpecial Weather StatementPHISussex32 min
Jun 26, 11:18 AM EDTSpecial Weather StatementPHISussex27 min
Jun 26, 11:53 AM EDTSpecial Weather StatementPHIMiddlesex22 min
Jun 26, 11:57 AM EDTSevere Thunderstorm WarningPHISussex18 min
Jun 26, 12:22 PM EDTSpecial Weather StatementPHIMiddlesex38 min
Jun 26, 2:02 PM EDTSpecial Weather StatementPHIHunterdon28 min
Jun 26, 2:32 PM EDTSpecial Marine WarningPHI43 min
Jun 26, 2:40 PM EDTSpecial Weather StatementPHIHunterdon35 min
Jun 26, 2:49 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Warren41 min
Jun 26, 2:54 PM EDTAreal Flood AdvisoryPHIHunterdon95 min
Jun 26, 2:58 PM EDTSevere Thunderstorm WarningPHISussex, Warren47 min
Jun 26, 3:01 PM EDTSpecial Weather StatementPHICumberland29 min
Jun 26, 3:02 PM EDTTornado WarningPHIWarren28 min
Jun 26, 3:04 PM EDTSevere Thunderstorm WarningPHIMorris, Somerset41 min
Jun 26, 3:17 PM EDTTornado WarningPHIHunterdon, Somerset28 min
Jun 26, 3:21 PM EDTSpecial Weather StatementPHICamden24 min
Jun 26, 3:28 PM EDTSevere Thunderstorm WarningPHIBurlington, Camden32 min
Jun 26, 3:40 PM EDTSevere Thunderstorm WarningPHIHunterdon, Morris, Somerset, Sussex50 min
Jun 26, 3:45 PM EDTSpecial Weather StatementPHIBurlington30 min
Jun 26, 3:48 PM EDTSevere Thunderstorm WarningPHIBurlington42 min
Jun 26, 3:56 PM EDTAreal Flood AdvisoryPHISussex, Warren2 hr
Jun 26, 3:59 PM EDTSpecial Weather StatementPHISussex, Warren46 min
Jun 26, 4:14 PM EDTSpecial Weather StatementPHIMercer31 min
Jun 26, 4:16 PM EDTAreal Flood AdvisoryPHIMorris, Somerset101 min
Jun 26, 4:24 PM EDTSpecial Weather StatementPHIBurlington36 min
Jun 26, 4:50 PM EDTAreal Flood AdvisoryPHIWarren73 min
Jun 26, 4:50 PM EDTSpecial Marine WarningPHI40 min
Jun 26, 5:01 PM EDTAreal Flood AdvisoryPHIMorris56 min
Jun 26, 5:09 PM EDTSevere Thunderstorm WarningPHICumberland, Salem25 min
Jun 26, 5:09 PM EDTSevere Thunderstorm WarningPHIMiddlesex, Morris, Somerset39 min
Jun 26, 5:22 PM EDTSpecial Marine WarningPHI23 min
Jun 26, 5:55 PM EDTFlash Flood WarningPHIHunterdon, Morris, Somerset, Sussex6 hr
Jun 26, 6:00 PM EDTAreal Flood AdvisoryPHIWarren4 hr
Jun 26, 6:03 PM EDTFlash Flood WarningPHIWarren6 hr
Jun 26, 6:08 PM EDTSpecial Weather StatementPHIHunterdon37 min
Jun 26, 6:15 PM EDTSpecial Weather StatementPHISalem30 min
Jun 26, 6:16 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Sussex, Warren51 min
Jun 26, 6:55 PM EDTSpecial Weather StatementPHIHunterdon35 min
Jun 26, 7:07 PM EDTFlash Flood WarningPHIHunterdon, Morris, Sussex, Warren5 hr
Jun 26, 8:41 AM EDTSevere Thunderstorm WarningPHICarbon, Lehigh, Monroe, Northampton49 min
Jun 26, 1:13 PM EDTSevere Thunderstorm WarningPHIBerks47 min
Jun 26, 1:35 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh40 min
Jun 26, 2:04 PM EDTSevere Thunderstorm WarningPHIBerks41 min
Jun 26, 2:06 PM EDTSevere Thunderstorm WarningPHICarbon, Lehigh, Monroe, Northampton39 min
Jun 26, 2:12 PM EDTTornado WarningPHIBerks, Lehigh21 min
Jun 26, 2:21 PM EDTSevere Thunderstorm WarningPHIBerks, Lehigh54 min
Jun 26, 2:23 PM EDTAreal Flood AdvisoryPHIBerks, Carbon, Lehigh107 min
Jun 26, 2:31 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton44 min
Jun 26, 2:32 PM EDTFlash Flood WarningPHIBerks, Lehigh67 min
Jun 26, 3:03 PM EDTAreal Flood AdvisoryPHIMonroe104 min
Jun 26, 3:25 PM EDTSevere Thunderstorm WarningPHIMonroe, Northampton41 min
Jun 26, 4:04 PM EDTSpecial Weather StatementPHINorthampton41 min
Jun 26, 5:47 PM EDTSpecial Weather StatementPHILebanon28 min
Jun 26, 5:59 PM EDTSevere Thunderstorm WarningPHIChester, Delaware24 min
Jun 26, 6:16 PM EDTSpecial Weather StatementPHIDelaware29 min
Jun 26, 6:26 PM EDTSpecial Weather StatementPHIChester34 min
Jun 26, 6:37 PM EDTFlash Flood WarningPHIChester, Delaware2 hr
Jun 26, 6:50 PM EDTSpecial Weather StatementPHIMontgomery25 min
Jun 26, 6:51 PM EDTSpecial Weather StatementPHINorthampton24 min
Jun 26, 7:13 PM EDTSpecial Weather StatementPHIBucks32 min
Jun 26, 7:26 PM EDTSpecial Weather StatementPHIMontgomery34 min
Jun 26, 7:44 PM EDTSpecial Weather StatementPHIDelaware, Montgomery31 min
Jun 26, 7:59 PM EDTSpecial Weather StatementPHILehigh31 min

Nearby

Severe Thunderstorm Warnings in New Jersey, 2023Severe Thunderstorm Warnings in Pennsylvania, 2023Every severe thunderstorm warning in 2023

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.