Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 172, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 22, 2020, 6:46 PM EDT for 6 counties in New Jersey. It was in force for 44 min. 3 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, 2020, 6:46 PM EDT (22:46 UTC)
- Expired
- Jul 22, 2020, 7:30 PM EDT
- In force
- 44 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ
The radar
The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 22:49 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 22, 6:55 PM EDT | MARINE TSTM WIND 45 | 1 Nw Fortescue, NJ | FORTESCUE, NJ MESONET STATION. |
| Jul 22, 6:57 PM EDT | TSTM WND DMG | 2 Nne Mauricetown, NJ | SEVERAL REPORTS OF WIRES DOWN BETWEEN MAURICE RIVER AND MILLVILLE. TIME ESTIMATED FROM RADAR. |
| Jul 22, 7:34 PM EDT | TSTM WND DMG | Mays Landing, NJ | SEVERAL REPORTS OF TREES AND WIRES DOWN NEAR MAYS LANDING AND ESTELL MANOR. 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 22, 2:57 PM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 10.8 hours before the alert went out and 182 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
- 186 J/kg
- Mixed-layer CIN
- -242 J/kg
- Mixed-layer LCL
- 1368 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted.
974
WUUS51 KPHI 222246
SVRPHI
NJC001-007-009-011-015-033-222330-
/O.NEW.KPHI.SV.W.0172.200722T2246Z-200722T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
646 PM EDT Wed Jul 22 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Western Atlantic County in southern New Jersey...
Cumberland County in southern New Jersey...
Central Salem County in southern New Jersey...
Southwestern Camden County in southern New Jersey...
Eastern Gloucester County in southern New Jersey...
Northwestern Cape May County in southern New Jersey...
* Until 730 PM EDT.
* At 646 PM EDT, severe thunderstorms were located along a line
extending from near Hancocks Bridge to 6 miles south of Bivalve,
moving northeast at 40 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...
Vineland, Millville, Bridgeton, Cumberland, Glassboro, Lindenwold,
Hammonton, Pitman, Northfield, Clayton, Berlin, Buena, Magnolia,
Laurel Lake, Woodstown, Alloway, Weymouth, Quinton, Woodbine and
Estell Manor.
This includes the following highways...
Garden State Parkway between mile markers 34 and 35.
Atlantic City Expressway near mile marker 12, and between mile
markers 16 and 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.
To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Mount Holly NJ.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3988 7499 3938 7456 3904 7507 3951 7551
TIME...MOT...LOC 2246Z 224DEG 34KT 3950 7541 3914 7507
HAIL...0.75IN
WIND...60MPH
$$
MPS2 follow-up statements
096
WWUS51 KPHI 222314
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
714 PM EDT Wed Jul 22 2020
NJC001-007-009-011-015-033-222330-
/O.CON.KPHI.SV.W.0172.000000T0000Z-200722T2330Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
Cape May NJ-
714 PM EDT Wed Jul 22 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM EDT
FOR WESTERN ATLANTIC...NORTHEASTERN CUMBERLAND...EAST CENTRAL
SALEM...SOUTHWESTERN CAMDEN...EASTERN GLOUCESTER AND NORTHWESTERN
CAPE MAY COUNTIES...
At 714 PM EDT, severe thunderstorms were located along a line
extending from near Pitman to South Vineland to Woodbine, moving
northeast at 30 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...
Vineland, Millville, Cumberland, Glassboro, Lindenwold, Hammonton,
Pitman, Northfield, Clayton, Berlin, Buena, Magnolia, Laurel Lake,
Weymouth, Woodbine, Estell Manor, Chesilhurst, Newfield, Elmer and
Corbin City.
This includes the following highways...
Garden State Parkway between mile markers 34 and 35.
Atlantic City Expressway near mile marker 12, and between mile
markers 16 and 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.
To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
Mount Holly NJ.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3919 7484 3939 7510 3970 7524 3988 7499
3969 7483 3961 7479 3951 7467 3938 7456
TIME...MOT...LOC 2314Z 227DEG 27KT 3973 7517 3944 7504 3924 7478
HAIL...0.75IN
WIND...60MPH
$$
MPS771
WWUS51 KPHI 222325
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
725 PM EDT Wed Jul 22 2020
NJC001-007-009-011-015-033-222334-
/O.EXP.KPHI.SV.W.0172.000000T0000Z-200722T2330Z/
Atlantic NJ-Cumberland NJ-Salem NJ-Camden NJ-Gloucester NJ-
Cape May NJ-
725 PM EDT Wed Jul 22 2020
...THE SEVERE THUNDERSTORM WARNING FOR WESTERN ATLANTIC...
NORTHEASTERN CUMBERLAND...EAST CENTRAL SALEM...SOUTHWESTERN CAMDEN...
EASTERN GLOUCESTER AND NORTHWESTERN CAPE MAY COUNTIES WILL EXPIRE AT
730 PM EDT...
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire. However gusty
winds and heavy rain are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1000 PM EDT for
southern New Jersey.
To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
Mount Holly NJ.
Remember, a new Severe Thunderstorm Warning is in effect for
portions of Cumberland, Salem, Camden, Gloucester, and Cape may
Counties until 8:15 pm.
LAT...LON 3919 7484 3939 7510 3970 7524 3988 7499
3969 7483 3961 7479 3951 7467 3938 7456
TIME...MOT...LOC 2324Z 224DEG 34KT 3980 7509 3951 7496 3931 7470
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 10:57 PM EDT | Special Marine Warning | PHI | 63 min | |
| Jul 22, 2:10 PM EDT | Severe Thunderstorm Warning | PHI | Warren | 50 min |
| Jul 22, 3:04 PM EDT | Severe Thunderstorm Warning | PHI | Sussex | 30 min |
| Jul 22, 3:18 PM EDT | Special Weather Statement | PHI | Morris, Warren | 42 min |
| Jul 22, 3:50 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Sussex, Warren | 29 min |
| Jul 22, 4:33 PM EDT | Special Weather Statement | PHI | Morris | 57 min |
| Jul 22, 4:56 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset | 49 min |
| Jul 22, 5:16 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Sussex, Warren | 59 min |
| Jul 22, 5:23 PM EDT | Areal Flood Advisory | PHI | Warren | 3 hr |
| Jul 22, 5:33 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester | 57 min |
| Jul 22, 5:40 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Hunterdon, Mercer, Somerset | 65 min |
| Jul 22, 5:49 PM EDT | Special Marine Warning | PHI | 86 min | |
| Jul 22, 5:54 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 51 min |
| Jul 22, 6:04 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset, Sussex, Warren | 60 min |
| Jul 22, 6:12 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 48 min |
| Jul 22, 6:17 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean, Somerset | 52 min |
| Jul 22, 6:47 PM EDT | Special Marine Warning | PHI | 28 min | |
| Jul 22, 6:52 PM EDT | Areal Flood Advisory | PHI | Middlesex, Somerset | 113 min |
| Jul 22, 6:52 PM EDT | Special Marine Warning | PHI | 41 min | |
| Jul 22, 7:20 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 22, 7:23 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 1 more | 52 min |
| Jul 22, 7:58 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Ocean | 47 min |
| Jul 22, 7:59 PM EDT | Special Marine Warning | PHI | 61 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 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.