Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 208, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 21, 2021, 2:13 PM EDT for Burlington County, New Jersey. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 21, 2021, 2:13 PM EDT (18:13 UTC)
- Expired
- Jul 21, 2021, 3:00 PM EDT
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Burlington County, NJ
The radar
The Philadelphia radar (KDIX), 14 km from the middle of the area, began a volume at 18:12 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.
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 21, 11:56 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 6.2 hours before the alert went out and 180 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
- 130 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 1495 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- 22 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.0
The text
As transmitted.
066
WUUS51 KPHI 211813
SVRPHI
NJC005-211900-
/O.NEW.KPHI.SV.W.0208.210721T1813Z-210721T1900Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
213 PM EDT Wed Jul 21 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
East central Burlington County in southern New Jersey...
* Until 300 PM EDT.
* At 213 PM EDT, a severe thunderstorm was located over Presidential
Lakes, or 22 miles west of Toms River, moving east 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...
Presidential Lakes Estates, Leisuretowne, Chatsworth, Presidential
Lakes, Browns Mills and Country Lake Estates.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
In addition to large hail and damaging winds, frequent cloud to
ground lightning is occurring with this storm. Move indoors
immediately. Remember, if you can hear thunder, you are close enough
to be struck by lightning.
&&
LAT...LON 3976 7443 3987 7475 3996 7465 3997 7449
3987 7444
TIME...MOT...LOC 1813Z 284DEG 19KT 3990 7459
HAIL...1.00IN
WIND...60MPH
$$
Gorse1 follow-up statement
748
WWUS51 KPHI 211829
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
229 PM EDT Wed Jul 21 2021
NJC005-211900-
/O.CON.KPHI.SV.W.0208.000000T0000Z-210721T1900Z/
Burlington NJ-
229 PM EDT Wed Jul 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 300 PM EDT
FOR EAST CENTRAL BURLINGTON COUNTY...
At 229 PM EDT, a severe thunderstorm was located near Chatsworth, or
21 miles southwest of Toms River, moving southeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Presidential Lakes Estates, Chatsworth, Presidential Lakes, Browns
Mills and Country Lake Estates.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 3976 7443 3985 7468 3995 7461 3997 7449
3987 7444
TIME...MOT...LOC 1829Z 293DEG 18KT 3986 7455
HAIL...1.00IN
WIND...60MPH
$$
GorseThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 11:09 AM EDT | Special Weather Statement | PHI | Morris | 36 min |
| Jul 21, 12:41 PM EDT | Special Weather Statement | PHI | Ocean | 34 min |
| Jul 21, 12:46 PM EDT | Special Marine Warning | PHI | 89 min | |
| Jul 21, 12:51 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Ocean | 39 min |
| Jul 21, 12:53 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 67 min |
| Jul 21, 1:28 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic | 47 min |
| Jul 21, 1:43 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 49 min |
| Jul 21, 2:10 PM EDT | Special Marine Warning | PHI | 95 min | |
| Jul 21, 2:35 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 21, 2:52 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 26 min |
| Jul 21, 3:04 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester | 56 min |
| Jul 21, 3:16 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 44 min |
| Jul 21, 3:27 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester | 33 min |
| Jul 21, 3:43 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth, Ocean | 47 min |
| Jul 21, 3:48 PM EDT | Special Marine Warning | PHI | 57 min | |
| Jul 21, 3:48 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden | 42 min |
| Jul 21, 3:57 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Salem | 33 min |
| Jul 21, 4:04 PM EDT | Special Marine Warning | PHI | 56 min | |
| Jul 21, 4:17 PM EDT | Special Marine Warning | PHI | 58 min | |
| Jul 21, 4:50 PM EDT | Special Marine Warning | PHI | 55 min | |
| Jul 21, 5:07 PM EDT | Special Marine Warning | PHI | 23 min | |
| Jul 21, 5:09 PM EDT | Special Marine Warning | PHI | 66 min | |
| Jul 21, 5:24 PM EDT | Special Marine Warning | PHI | 46 min | |
| Jul 21, 5:31 PM EDT | Severe Thunderstorm Warning | PHI | Cape May | 29 min |
| Jul 21, 5:52 PM EDT | Special Marine Warning | PHI | 53 min |
Nearby
Severe Thunderstorm Warnings in New Jersey, 2021Every severe thunderstorm warning in 2021
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.