Alert archive / New Jersey / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 154, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 23, 2008, 5:13 PM EDT for 5 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 62 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
- Jul 23, 2008, 5:13 PM EDT (21:13 UTC)
- Expired
- Jul 23, 2008, 6:15 PM EDT
- In force
- 62 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ, Somerset County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 36 km from the middle of the area, began a volume at 21:14 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 23, 5:27 PM EDT | HAIL 0.25 | Trenton, NJ |
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 23, 2:34 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 9.2 hours before the alert went out and 150 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.
- Mixed-layer CAPE
- 1012 J/kg
- Mixed-layer CIN
- -98 J/kg
- Mixed-layer LCL
- 980 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- -61 m²/s²
- 0-3 km storm-relative helicity
- -48 m²/s²
- Significant tornado parameter
- -0.4
- Supercell composite
- -7.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS51 KPHI 232113 SVRPHI NJC005-021-023-025-035-PAC017-232215- /O.NEW.KPHI.SV.W.0154.080723T2113Z-080723T2215Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 513 PM EDT WED JUL 23 2008 THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... MERCER COUNTY IN CENTRAL NEW JERSEY... WESTERN MONMOUTH COUNTY IN CENTRAL NEW JERSEY... MIDDLESEX COUNTY IN NORTHERN NEW JERSEY... SOUTHEASTERN SOMERSET COUNTY IN NORTHERN NEW JERSEY... SOUTHEASTERN BUCKS COUNTY IN SOUTHEAST PENNSYLVANIA... NORTH CENTRAL BURLINGTON COUNTY IN SOUTHERN NEW JERSEY... * UNTIL 615 PM EDT * AT 510 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR FLORENCE...AND MOVING NORTHEAST AT 28 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... BORDENTOWN BY 520 PM... WHITE HORSE...CROSSWICKS AND TRENTON BY 525 PM... MERCERVILLE-HAMILTON SQUARE AND ALLENTOWN BY 530 PM... EDINBURG AND WINDSOR BY 535 PM... TWIN RIVERS BY 545 PM... CLEARBROOK PARK BY 550 PM... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND SOUTHEAST PENNSYLVANIA. LAT...LON 3999 7474 4012 7498 4057 7451 4041 7422 TIME...MOT...LOC 2113Z 222DEG 30KT 4012 7478 $$ IOVINO
1 follow-up statement
000 WWUS51 KPHI 232151 SVSPHI SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE MOUNT HOLLY NJ 549 PM EDT WED JUL 23 2008 NJC005-PAC017-232159- /O.CAN.KPHI.SV.W.0154.000000T0000Z-080723T2215Z/ BUCKS PA-BURLINGTON NJ- 549 PM EDT WED JUL 23 2008 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BURLINGTON AND SOUTHEASTERN BUCKS COUNTIES IS CANCELLED... THE SEVERE THUNDERSTORM HAS MOVED TO THE NORTHEAST OF THE AREA. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND SOUTHEAST PENNSYLVANIA. LAT...LON 4019 7453 4030 7469 4057 7451 4041 7422 TIME...MOT...LOC 2149Z 222DEG 30KT 4034 7452 $$ NJC021-023-025-035-232215- /O.CON.KPHI.SV.W.0154.000000T0000Z-080723T2215Z/ SOMERSET NJ-MERCER NJ-MIDDLESEX NJ-MONMOUTH NJ- 549 PM EDT WED JUL 23 2008 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM EDT FOR WESTERN MONMOUTH...MIDDLESEX...SOUTHEASTERN MERCER AND SOUTHEASTERN SOMERSET COUNTIES... AT 547 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING NICKEL SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR CRANBURY...MOVING NORTHEAST AT 28 MPH. THE SEVERE THUNDERSTORM WILL BE NEAR... DAYTON...JAMESBURG AND KENDALL PARK BY 555 PM EDT... HELMETTA...SPOTSWOOD AND NORTH BRUNSWICK BY 600 PM EDT... EAST BRUNSWICK...SOUTH RIVER...MILLTOWN AND NEW BRUNSWICK BY 605 PM EDT... IN ADDITION TO LARGE HAIL AND DAMAGING WINDS...CONTINUOUS CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY LIGHTNING IS ONE OF NATURES NUMBER ONE KILLERS. REMEMBER...IF YOU CAN HEAR THUNDER...YOU ARE CLOSE ENOUGH TO BE STRUCK BY LIGHTNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM EDT WEDNESDAY EVENING FOR DELAWARE AND NORTHEASTERN MARYLAND AND NEW JERSEY AND SOUTHEAST PENNSYLVANIA. LAT...LON 4019 7453 4030 7469 4057 7451 4041 7422 TIME...MOT...LOC 2149Z 222DEG 30KT 4034 7452 $$ IOVINO
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 3:02 AM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 23, 3:51 AM EDT | Flash Flood Watch | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 25 hr |
| Jul 23, 2:44 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland, Salem | 46 min |
| Jul 23, 2:55 PM EDT | Severe Thunderstorm Warning | PHI | Mercer | 35 min |
| Jul 23, 2:58 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon | 47 min |
| Jul 23, 3:26 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Somerset | 64 min |
| Jul 23, 3:30 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 60 min |
| Jul 23, 4:03 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 57 min |
| Jul 23, 4:09 PM EDT | Tornado Warning | PHI | Middlesex, Somerset | 36 min |
| Jul 23, 4:51 PM EDT | Areal Flood Warning | PHI | Middlesex, Somerset | 105 min |
| Jul 23, 5:03 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Somerset | 57 min |
| Jul 23, 7:00 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 60 min |
| Jul 23, 7:10 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Morris, Somerset | 35 min |
| Jul 23, 7:48 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 57 min |
| Jul 23, 4:23 AM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Montgomery | 3 hr |
| Jul 23, 3:58 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware, Montgomery | 62 min |
| Jul 23, 4:27 PM EDT | Severe Thunderstorm Warning | PHI | Chester, Delaware | 38 min |
| Jul 23, 4:47 PM EDT | Severe Thunderstorm Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 58 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2008Severe Thunderstorm Warnings in Pennsylvania, 2008Every severe thunderstorm warning in 2008
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.