Alert archive / New Jersey / Severe Thunderstorm Warnings in 2020
Severe Thunderstorm Warning 129, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 6, 2020, 4:45 PM EDT for 4 counties in New Jersey. It was in force for 60 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, 4:45 PM EDT (20:45 UTC)
- Expired
- Jul 6, 2020, 5:45 PM EDT
- In force
- 60 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Atlantic County, NJ, Cape May County, NJ, Cumberland County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 77 km from the middle of the area, began a volume at 20:48 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, 5:03 PM EDT | MARINE TSTM WIND 46 | 2 Ne Strathmere, NJ | WEATHERFLOW SITE XOCS. |
| Jul 6, 5:10 PM EDT | HAIL 0.5 | Cedarville, NJ | TIME ESTIMATED FROM RADAR. |
| Jul 6, 5:13 PM EDT | HAIL 0.25 | Newport, 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 6, 1:38 PM EDT | Severe Thunderstorm Watch | SPC | 9 hr |
The nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 12:00Z, 8.8 hours before the alert went out and 158 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
- 1228 J/kg
- Mixed-layer CIN
- -65 J/kg
- Mixed-layer LCL
- 1186 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
406
WUUS51 KPHI 062045
SVRPHI
NJC001-009-011-033-062145-
/O.NEW.KPHI.SV.W.0129.200706T2045Z-200706T2145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
445 PM EDT Mon Jul 6 2020
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Southern Atlantic County in southern New Jersey...
Cumberland County in southern New Jersey...
Southeastern Salem County in southern New Jersey...
Cape May County in southern New Jersey...
* Until 545 PM EDT.
* At 444 PM EDT, severe thunderstorms were located along a line
extending from near Surf City to Atlantic City to near Marmora to
near Bricksboro to Shiloh, moving south at 35 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...
Vineland, Atlantic City, Millville, Bridgeton, Ocean City, Cape
May, Cumberland, Pleasantville, Somers Point, Ventnor City,
Brigantine, Northfield, Absecon, Margate City, North Wildwood,
Laurel Lake, Wildwood Crest, Woodbine, Sea Isle City and Estell
Manor.
This includes the following highways...
Garden State Parkway between mile markers 0 and 36.
Atlantic City Expressway between mile markers 0 and 6.
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 3926 7449 3905 7469 3889 7482 3893 7500
3915 7495 3919 7532 3954 7538 3938 7469
3942 7445 3953 7436 3943 7428
TIME...MOT...LOC 2044Z 351DEG 30KT 3961 7421 3936 7445 3926 7469 3931
7493 3946 7532
HAIL...1.00IN
WIND...60MPH
$$
Gorse1 follow-up statement
246
WWUS51 KPHI 062122
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
522 PM EDT Mon Jul 6 2020
NJC033-062131-
/O.CAN.KPHI.SV.W.0129.000000T0000Z-200706T2145Z/
Salem NJ-
522 PM EDT Mon Jul 6 2020
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SALEM COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 1100 PM EDT for
southern New Jersey.
LAT...LON 3926 7449 3905 7469 3889 7482 3893 7500
3915 7495 3919 7532 3942 7529 3944 7503
3938 7469 3942 7445 3953 7436 3943 7428
TIME...MOT...LOC 2121Z 351DEG 30KT 3932 7415 3906 7439 3896 7463 3902
7487 3917 7526
$$
NJC001-009-011-062145-
/O.CON.KPHI.SV.W.0129.000000T0000Z-200706T2145Z/
Atlantic NJ-Cumberland NJ-Cape May NJ-
522 PM EDT Mon Jul 6 2020
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM EDT
FOR SOUTHERN ATLANTIC...CUMBERLAND AND CAPE MAY COUNTIES...
At 521 PM EDT, severe thunderstorms were located along a line
extending from 13 miles southeast of Brigantine to 17 miles southeast
of Strathmere to 9 miles southeast of Stone Harbor to Rio Grande to 6
miles southwest of Fortesque, moving south at 35 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...
Vineland, Atlantic City, Millville, Bridgeton, Ocean City, Cape May,
Cumberland, Pleasantville, Somers Point, Ventnor City, Brigantine,
Northfield, Absecon, Margate City, North Wildwood, Laurel Lake,
Wildwood Crest, Woodbine, Sea Isle City and Estell Manor.
This includes the following highways...
Garden State Parkway between mile markers 0 and 36.
Atlantic City Expressway between mile markers 0 and 6.
LAT...LON 3926 7449 3905 7469 3889 7482 3893 7500
3915 7495 3919 7532 3942 7529 3944 7503
3938 7469 3942 7445 3953 7436 3943 7428
TIME...MOT...LOC 2121Z 351DEG 30KT 3932 7415 3906 7439 3896 7463 3902
7487 3917 7526
HAIL...1.00IN
WIND...60MPH
$$
BAHThe 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 | Atlantic, Burlington, Ocean | 54 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, 4:58 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.