Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 200, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Aug 3, 2020, 7:20 PM EDT for 4 counties in New Jersey; Bucks County, Pennsylvania. It was in force for 40 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
- Aug 3, 2020, 7:20 PM EDT (23:20 UTC)
- Expired
- Aug 3, 2020, 8:00 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 Burlington County, NJ, Camden County, NJ, Mercer County, NJ, Monmouth County, NJ, Bucks County, PA
The radar
The Philadelphia radar (KDIX), 30 km from the middle of the area, began a volume at 23:24 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Aug 3, 7:20 PM EDT | TSTM WND DMG | Cherry Hill, NJ | TREES DOWN ON BURNT MILLS RD. AND WALT WHITMAN BLVD. |
| Aug 3, 7:33 PM EDT | TSTM WND GST 60 | 3 Wsw Hainesport, NJ | NWS EMPLOYEE ESTIMATED 60 MPH WINDS ALONG WITH SOME MINOR TREE DAMAGE. |
| Aug 3, 7:35 PM EDT | TSTM WND DMG | Mount Laurel, NJ | SIDING BLOWN OFF BUILDING IN MOUNT LAUREL. |
| Aug 3, 7:54 PM EDT | TSTM WND DMG | 2 Sse Yardville, NJ | DOWNED TREES AND WIRES NEAR WARD AVENUE IN CROSSWICKS. TIME ESTIMATED FROM RADAR. |
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, 11.3 hours before the alert went out and 187 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
- 185 J/kg
- Mixed-layer CIN
- -137 J/kg
- Mixed-layer LCL
- 1124 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.2
The text
As transmitted.
645
WUUS51 KPHI 032320
SVRPHI
NJC005-007-021-025-PAC017-040000-
/O.NEW.KPHI.SV.W.0200.200803T2320Z-200804T0000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
720 PM EDT Mon Aug 3 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northwestern Camden County in southern New Jersey...
South central Mercer County in central New Jersey...
Northwestern Burlington County in southern New Jersey...
Southwestern Monmouth County in central New Jersey...
Southeastern Bucks County in southeastern Pennsylvania...
* Until 800 PM EDT.
* At 718 PM EDT, a severe thunderstorm was located over Greentree, or
7 miles east of Gloucester City, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
* Locations impacted include...
Trenton, Camden, Gloucester City, Cherry Hill, Evesham, Mount
Laurel, Willingboro, Voorhees, Medford, Lindenwold, Lumberton,
Florence, Bellmawr, Burlington, Bristol, Mount Holly, Riverside,
Berlin, Palmyra and Magnolia.
This includes the following highways...
New Jersey Turnpike between exits 3 and 7A.
Pennsylvania Turnpike between mile markers 358 and 359.
Interstate 76 in New Jersey between mile markers 0 and 2.
Interstate 195 in New Jersey between mile markers 0 and 2.
Interstate 295 in New Jersey between mile markers 27 and 62.
Interstate 676 in New Jersey between mile markers 0 and 3.
Atlantic City Expressway mile marker 42 and near mile marker 44.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4008 7455 4006 7454 3974 7502 3978 7506
3993 7514 4022 7473 4011 7450
TIME...MOT...LOC 2318Z 230DEG 28KT 3989 7497
HAIL...<.75IN
WIND...60MPH
$$
Robertson1 follow-up statement
197
WWUS51 KPHI 032338
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
738 PM EDT Mon Aug 3 2020
NJC007-032348-
/O.CAN.KPHI.SV.W.0200.000000T0000Z-200804T0000Z/
Camden NJ-
738 PM EDT Mon Aug 3 2020
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN CAMDEN COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 4008 7455 4006 7454 3985 7486 3992 7497
3993 7499 3994 7498 3995 7502 4022 7472
4011 7450
TIME...MOT...LOC 2338Z 229DEG 27KT 3998 7483
$$
NJC005-021-025-PAC017-040000-
/O.CON.KPHI.SV.W.0200.000000T0000Z-200804T0000Z/
Mercer NJ-Burlington NJ-Monmouth NJ-Bucks PA-
738 PM EDT Mon Aug 3 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM EDT
FOR SOUTH CENTRAL MERCER...NORTHWESTERN BURLINGTON...SOUTHWESTERN
MONMOUTH AND SOUTHEASTERN BUCKS COUNTIES...
At 738 PM EDT, a severe thunderstorm was located over Lumberton, or
14 miles east of Camden, moving northeast at 30 mph.
HAZARD...60 mph wind gusts.
SOURCE...NWS Employee.
IMPACT...Damage to roofs, siding, trees, and power lines is
possible.
Locations impacted include...
Trenton, Evesham, Mount Laurel, Willingboro, Medford, Lumberton,
Florence, Burlington, Bristol, Mount Holly, Bordentown, Tullytown,
Pemberton, Wrightstown, Ramblewood, Florence-Roebling, Marlton,
Jacksonville, Georgetown and Crosswicks.
This includes the following highways...
New Jersey Turnpike between exits 4 and 7A.
Pennsylvania Turnpike near mile marker 359.
Interstate 195 in New Jersey between mile markers 0 and 2.
Interstate 295 in New Jersey between mile markers 36 and 62.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Protecting yourself from immediate threats to life and safety shall
take priority. Whenever possible, as long as it does not cause
greater harm, all COVID-19 protective action guidance should be
followed.
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4008 7455 4006 7454 3985 7486 3992 7497
3993 7499 3994 7498 3995 7502 4022 7472
4011 7450
TIME...MOT...LOC 2338Z 229DEG 27KT 3998 7483
HAIL...<.75IN
WIND...60MPH
$$
StaarmannThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 8:09 PM EDT | Special Marine Warning | PHI | 36 min | |
| Aug 2, 8:53 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 51 hr |
| Aug 2, 8:53 PM EDT | High Surf Advisory | PHI | Atlantic, Cape May, Monmouth, Ocean | 51 hr |
| Aug 2, 9:01 PM EDT | Special Weather Statement | PHI | Atlantic | 44 min |
| Aug 2, 10:18 PM EDT | Special Weather Statement | PHI | Warren | 42 min |
| Aug 2, 11:42 PM EDT | Special Weather Statement | PHI | Cumberland | 33 min |
| Aug 2, 11:49 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cumberland, Gloucester, Ocean and 1 more | 41 min |
| Aug 3, 5:08 AM EDT | Tropical Storm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 39 hr |
| Aug 3, 4:26 PM EDT | Coastal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 4 more | 38 hr |
| Aug 3, 6:03 PM EDT | Special Marine Warning | PHI | 12 min | |
| Aug 3, 6:05 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 22 min |
| Aug 3, 6:19 PM EDT | Special Weather Statement | PHI | Salem | 26 min |
| Aug 3, 6:32 PM EDT | Special Weather Statement | PHI | Camden, Cumberland, Gloucester, Salem | 28 min |
| Aug 3, 6:48 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 27 min |
| Aug 3, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 31 min |
| Aug 3, 7:02 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 28 min |
| Aug 3, 7:12 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Monmouth, Ocean | 48 min |
| Aug 3, 7:43 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Monmouth, Ocean | 62 min |
| Aug 3, 7:52 PM EDT | Special Marine Warning | PHI | 73 min | |
| Aug 3, 7:56 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset | 52 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2020Severe Thunderstorm Warnings in Pennsylvania, 2020Every severe thunderstorm warning in 2020
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.