Alert archive / New Jersey / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 212, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this severe thunderstorm warning at Jul 21, 2021, 2:52 PM EDT for Ocean County, New Jersey. It was in force for 26 min. 1 report 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, 2:52 PM EDT (18:52 UTC)
- Expired
- Jul 21, 2021, 3:18 PM EDT
- In force
- 26 min
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 15 km from the middle of the area, began a volume at 18:54 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, 3:20 PM EDT | HAIL 1 | Lakehurst, 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, 6.9 hours before the alert went out and 164 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.
418
WUUS51 KPHI 211852 RRA
SVRPHI
NJC029-211945-
/O.NEW.KPHI.SV.W.0212.210721T1852Z-210721T1945Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Mount Holly NJ
252 PM EDT Wed Jul 21 2021
The National Weather Service in Mount Holly NJ has issued a
* Severe Thunderstorm Warning for...
Central Ocean County in southern New Jersey...
* Until 345 PM EDT.
* At 251 PM EDT, a severe thunderstorm was located near Bamber Lake,
or 12 miles southwest of Toms River, moving east at 45 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, Barnegat, Beachwood, Seaside Heights, Lakehurst,
Mantoloking, Leisure Village, Dover Beaches North, Holiday City
South, Pleasant Plains, Warren Grove, Cedar Glen West, Leisure
Village East, Dover Beaches South, Holiday City-Berkeley, Bamber
Lake, Cedar Glen Lakes, Whiting, Brookville and Pine Ridge At
Crestwood.
This includes Garden State Parkway between mile markers 66 and 89.
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 3973 7408 3973 7439 3977 7439 3994 7448
4003 7451 4006 7402
TIME...MOT...LOC 1851Z 267DEG 39KT 3985 7431
HAIL...1.00IN
WIND...60MPH
$$
Gorse2 follow-up statements
412
WWUS51 KPHI 211906
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
306 PM EDT Wed Jul 21 2021
NJC029-211945-
/O.CON.KPHI.SV.W.0212.000000T0000Z-210721T1945Z/
Ocean NJ-
306 PM EDT Wed Jul 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 345 PM EDT
FOR CENTRAL OCEAN COUNTY...
At 306 PM EDT, a severe thunderstorm was located near Seaside
Heights, or 10 miles southeast of Toms River, moving east at 45 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to vehicles is possible. Wind damage to roofs,
siding, trees, and power lines is possible.
Locations impacted include...
Barnegat, Beachwood, Brookville, Warren Grove, Bamber Lake, Old
Halfway, Ocean Acres, Waretown and Holiday Heights.
This includes Garden State Parkway between mile markers 66 and 79.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Frequent cloud to ground lightning is occurring with this storm. Move
indoors immediately. Lightning is one of nature's leading killers.
Remember, if you can hear thunder, you are close enough to be struck
by lightning.
&&
LAT...LON 3973 7408 3973 7439 3977 7439 3992 7447
3993 7405
TIME...MOT...LOC 1906Z 267DEG 39KT 3986 7410
HAIL...1.00IN
WIND...60MPH
$$
Gorse001
WWUS51 KPHI 211918
SVSPHI
Severe Weather Statement
National Weather Service Mount Holly NJ
318 PM EDT Wed Jul 21 2021
NJC029-211927-
/O.CAN.KPHI.SV.W.0212.000000T0000Z-210721T1945Z/
Ocean NJ-
318 PM EDT Wed Jul 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL OCEAN COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled. However gusty winds and
heavy rain are still possible with this thunderstorm.
A Severe Thunderstorm Watch remains in effect until 800 PM EDT for
southern New Jersey.
LAT...LON 3973 7408 3973 7439 3977 7439 3992 7447
3993 7405
TIME...MOT...LOC 1915Z 267DEG 39KT 3987 7393
$$
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, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.