Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 121, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 6, 2020, 3:36 PM EDT for Atlantic County, Burlington County, Ocean County, New Jersey. It was in force for 54 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 6, 2020, 3:36 PM EDT (19:36 UTC)
- Expired
- Jul 6, 2020, 4:30 PM EDT
- In force
- 54 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Burlington County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 36 km from the middle of the area, began a volume at 19:38 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 6, 3:44 PM EDT | HAIL 0.5 | 4 W Wading River, NJ | |
| Jul 6, 3:53 PM EDT | MARINE TSTM WIND 45 | 4 Se Mystic Island, NJ | WEATHERFLOW GAUGE XTUK. |
| Jul 6, 4:06 PM EDT | MARINE TSTM WIND 52 | 4 Se Mystic Island, NJ | CORRECTS PREVIOUS MARINE TSTM WIND REPORT FROM 4 SE MYSTIC ISLAND TO REFLECT NEW HIGHER WIND GUST. WEATHERFLOW GAUGE XTUK. |
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 6, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.6 hours before the alert went out and 186 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
- 100 J/kg
- Mixed-layer CIN
- -192 J/kg
- Mixed-layer LCL
- 1959 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 39 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
878
WUUS51 KPHI 061936
SVRPHI
NJC001-005-029-062030-
/O.NEW.KPHI.SV.W.0121.200706T1936Z-200706T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
336 PM EDT Mon Jul 6 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Atlantic County in southern New Jersey...
Southeastern Ocean County in southern New Jersey...
Southeastern Burlington County in southern New Jersey...
* Until 430 PM EDT.
* At 336 PM EDT, severe thunderstorms were located along a line
extending from near Barnegat to near Bass River State Forest to
near Egg Harbor City to near Elwood-Magnolia, moving southeast 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...
Atlantic City, Barnegat, Pleasantville, Ventnor City, Brigantine,
Absecon, Egg Harbor City, Tuckerton, Surf City, Port Republic,
Pomona, Elwood-Magnolia, Wading River, Brookville, Warren Grove,
Bass River State Forest, New Gretna, Beach Haven West, Mystic
Island and Ocean Acres.
This includes the following highways...
Garden State Parkway between mile markers 36 and 73.
Atlantic City Expressway between mile markers 0 and 24.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with these storms. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
&&
LAT...LON 3982 7405 3957 7420 3944 7431 3932 7443
3956 7484 3968 7450 3984 7435
TIME...MOT...LOC 1936Z 296DEG 19KT 3978 7425 3963 7437 3957 7455 3954
7472
HAIL...1.00IN
WIND...60MPH
$$
Gorse1 follow-up statement
902
WWUS51 KPHI 061959
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
359 PM EDT Mon Jul 6 2020
NJC001-005-029-062030-
/O.CON.KPHI.SV.W.0121.000000T0000Z-200706T2030Z/
Atlantic NJ-Ocean NJ-Burlington NJ-
359 PM EDT Mon Jul 6 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR SOUTHEASTERN ATLANTIC...SOUTHEASTERN OCEAN AND SOUTHEASTERN
BURLINGTON COUNTIES...
At 359 PM EDT, severe thunderstorms were located along a line
extending from 7 miles east of Barnegat to 6 miles southeast of
Tuckerton to near Port Republic to near Pomona, moving southeast at
25 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Atlantic City, Barnegat, Pleasantville, Brigantine, Absecon,
Tuckerton, Surf City, Port Republic, Pomona, Bass River State Forest,
New Gretna, Beach Haven West, Mystic Island, Ocean Acres, Manahawkin
and Waretown.
This includes the following highways...
Garden State Parkway between mile markers 40 and 72.
Atlantic City Expressway between mile markers 0 and 2.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Frequent cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
&&
LAT...LON 3982 7405 3957 7420 3944 7431 3932 7443
3952 7460 3983 7422
TIME...MOT...LOC 1959Z 308DEG 22KT 3978 7409 3954 7424 3948 7442 3945
7459
HAIL...1.00IN
WIND...60MPH
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 6, 3:16 AM EDT | Heat Advisory | PHI | Burlington, Camden, Gloucester, Mercer | 12 hr |
| Jul 6, 12:45 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 60 min |
| Jul 6, 12:52 PM EDT | Flash Flood Watch | PHI | Burlington, Camden, Gloucester, Mercer, Salem | 8 hr |
| Jul 6, 12:57 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden | 2 hr |
| Jul 6, 1:08 PM EDT | Flash Flood Warning | PHI | Burlington, Camden | 4 hr |
| Jul 6, 1:15 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Monmouth | 60 min |
| Jul 6, 1:43 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 62 min |
| Jul 6, 1:52 PM EDT | Special Weather Statement | PHI | Ocean | 23 min |
| Jul 6, 2:00 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 75 min |
| Jul 6, 2:02 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Mercer, Middlesex, Monmouth, Ocean | 118 min |
| Jul 6, 2:39 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 66 min |
| Jul 6, 2:41 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer | 49 min |
| Jul 6, 2:46 PM EDT | Special Marine Warning | PHI | 89 min | |
| Jul 6, 2:48 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 4 hr |
| Jul 6, 2:51 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Monmouth | 39 min |
| Jul 6, 2:57 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 4 hr |
| Jul 6, 3:00 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 45 min |
| Jul 6, 3:14 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 46 min |
| Jul 6, 3:18 PM EDT | Severe Thunderstorm Warning | PHI | Middlesex, Somerset | 42 min |
| Jul 6, 3:34 PM EDT | Areal Flood Advisory | PHI | Middlesex, Monmouth, Somerset | 116 min |
| Jul 6, 3:36 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Morris, Somerset | 39 min |
| Jul 6, 3:38 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 52 min |
| Jul 6, 3:44 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jul 6, 3:44 PM EDT | Special Marine Warning | PHI | 61 min | |
| Jul 6, 3:47 PM EDT | Flash Flood Warning | PHI | Middlesex, Morris, Somerset | 4 hr |
| Jul 6, 3:47 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Camden, Cumberland, Gloucester, Salem | 58 min |
| Jul 6, 4:41 PM EDT | Special Marine Warning | PHI | 64 min | |
| Jul 6, 4:45 PM EDT | Special Marine Warning | PHI | 41 min | |
| Jul 6, 4:45 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland, Salem | 60 min |
| Jul 6, 4:58 PM EDT | Special Marine Warning | PHI | 62 min | |
| Jul 6, 5:24 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 2 more | 4 hr |
| Jul 6, 5:39 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jul 6, 5:43 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 47 min |
| Jul 6, 5:57 PM EDT | Special Marine Warning | PHI | 63 min | |
| Jul 6, 6:00 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 60 min |
| Jul 6, 6:43 PM EDT | Special Marine Warning | PHI | 44 min | |
| Jul 6, 6:56 PM EDT | Special Marine Warning | PHI | 47 min | |
| Jul 6, 7:18 PM EDT | Severe Thunderstorm Warning | PHI | Sussex, Warren | 36 min |
| Jul 6, 7:55 PM EDT | Special Weather Statement | PHI | Sussex | 50 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.