Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 216, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 21, 2021, 3:43 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 47 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 21, 2021, 3:43 PM EDT (19:43 UTC)
- Expired
- Jul 21, 2021, 4:30 PM EDT
- In force
- 47 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 27 km from the middle of the area, began a volume at 19:46 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 21, 3:45 PM EDT | HAIL 0.75 | Lakewood, NJ | |
| Jul 21, 4:00 PM EDT | TSTM WND DMG | 2 Ese Ramtown, NJ | WIRES DOWN ON ROAD IN HERBERTSVILLE, PHOTO RELAYED THROUGH SOCIAL MEDIA. TIME ESTIMATED FROM RADAR. |
| Jul 21, 4:00 PM EDT | HAIL 0.75 | Ramtown, 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 21, 11:56 AM EDT | Severe Thunderstorm Watch | SPC | 7 hr |
The nearest sounding before it
Brookhaven, NY (KOKX), launched 12:00Z, 7.7 hours before the alert went out and 139 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.
827
WUUS51 KPHI 211943
SVRPHI
NJC025-029-212030-
/O.NEW.KPHI.SV.W.0216.210721T1943Z-210721T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
343 PM EDT Wed Jul 21 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Northeastern Ocean County in southern New Jersey...
Southeastern Monmouth County in central New Jersey...
* Until 430 PM EDT.
* At 343 PM EDT, a severe thunderstorm was located over Lakewood, or
near Toms River, moving northeast 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...
Toms River, Long Branch, Asbury Park, Lakewood, Tinton Falls,
Manasquan, Point Pleasant Beach, Farmingdale, Mantoloking, Leisure
Village, Allenwood, Pleasant Plains, Leisure Village East, Elberon,
Ramtown, Brick Township, Collingwood Park, Cedar Glen West, Leisure
Village West-Pine Lake Park and Point Pleasant.
This includes the following highways...
Interstate 195 in New Jersey between mile markers 26 and 34.
Garden State Parkway between mile markers 85 and 104.
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 3999 7424 4012 7432 4032 7396 4003 7403
TIME...MOT...LOC 1943Z 242DEG 24KT 4009 7418
HAIL...1.00IN
WIND...60MPH
$$
Gorse2 follow-up statements
428
WWUS51 KPHI 212000
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
400 PM EDT Wed Jul 21 2021
NJC025-029-212030-
/O.CON.KPHI.SV.W.0216.000000T0000Z-210721T2030Z/
Ocean NJ-Monmouth NJ-
400 PM EDT Wed Jul 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHEASTERN OCEAN AND SOUTHEASTERN MONMOUTH COUNTIES...
At 400 PM EDT, a severe thunderstorm was located over Allenwood, or 8
miles southwest of Asbury Park, moving northeast at 15 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Long Branch, Asbury Park, Lakewood, Tinton Falls, Manasquan, Point
Pleasant Beach, Farmingdale, Mantoloking, Allenwood, Elberon,
Ramtown, Brick Township, Collingwood Park, Leisure Village East,
Leisure Village, Point Pleasant, Eatontown, West Long Branch, Neptune
City and Brielle.
This includes the following highways...
Interstate 195 in New Jersey between mile markers 29 and 34.
Garden State Parkway between mile markers 89 and 104.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 4032 7396 4031 7396 4003 7403 4004 7418
4018 7421
TIME...MOT...LOC 2000Z 239DEG 14KT 4012 7411
HAIL...1.00IN
WIND...60MPH
$$
Gorse972
WWUS51 KPHI 212014 RRA
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
414 PM EDT Wed Jul 21 2021
NJC025-029-212030-
/O.CON.KPHI.SV.W.0216.000000T0000Z-210721T2030Z/
Ocean NJ-Monmouth NJ-
414 PM EDT Wed Jul 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR NORTHEASTERN OCEAN AND SOUTHEASTERN MONMOUTH COUNTIES...
At 414 PM EDT, a severe thunderstorm was located over Manasquan, or
near Asbury Park, moving east at 15 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...
Long Branch, Asbury Park, Tinton Falls, Manasquan, Point Pleasant
Beach, Elberon, Allenwood, Point Pleasant, Eatontown, West Long
Branch, Neptune City, Brielle, Spring Lake Heights, Bradley Beach,
Spring Lake, Avon-By-the-sea, Sea Girt, Bay Head, Interlaken and
Deal.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 4026 7397 4019 7398 4007 7402 4008 7411
4025 7408 4032 7397
TIME...MOT...LOC 2014Z 256DEG 14KT 4014 7401
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, 2:13 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 47 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, 3:48 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.