Alert archive / New Jersey / Special Weather Statements in 2021
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 20, 2021, 3:10 AM EDT for Atlantic County, New Jersey. It was in force for 35 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
- Aug 20, 2021, 3:10 AM EDT (07:10 UTC)
- Expired
- Aug 20, 2021, 3:45 AM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.25 in
- Wind
- 30
County Atlantic County, NJ
The radar
The Philadelphia radar (KDIX), 77 km from the middle of the area, began a volume at 07:10 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 nearest sounding before it
Wallops Is Stn, VA (KWAL), launched 00:00Z, 7.2 hours before the alert went out and 163 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
- 1543 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 1030 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
376
WWUS81 KPHI 200710
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
310 AM EDT Fri Aug 20 2021
NJZ022>024-200745-
Atlantic NJ-Atlantic Coastal Cape May NJ-Cape May NJ-
310 AM EDT Fri Aug 20 2021
...A strong thunderstorm will impact portions of south central
Atlantic and northeastern Cape May Counties through 345 AM EDT...
At 310 AM EDT, Doppler radar was tracking a strong thunderstorm near
Corbin City, or 7 miles west of Ocean City, moving northeast at 15
mph.
HAZARD...Pea size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Ocean City, Somers Point, Woodbine, Estell Manor, Corbin City,
Marmora, Beesleys Point, English Creek, Seaville and Strathmere.
This includes Garden State Parkway between mile markers 20 and 30.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
&&
LAT...LON 3921 7455 3919 7481 3926 7485 3940 7465
3932 7461 3931 7462 3931 7460
TIME...MOT...LOC 0710Z 247DEG 12KT 3926 7474
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 19, 8:15 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Ocean | 3 days |
| Aug 20, 3:08 AM EDT | Special Weather Statement | PHI | Cumberland | 37 min |
| Aug 20, 7:25 AM EDT | Special Marine Warning | PHI | 65 min | |
| Aug 20, 8:20 AM EDT | Special Marine Warning | PHI | 55 min | |
| Aug 20, 8:45 AM EDT | Special Marine Warning | PHI | 60 min | |
| Aug 20, 9:36 AM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Cape May, Ocean | 3 hr |
| Aug 20, 3:13 PM EDT | Rip Current Statement | PHI | Monmouth | 60 hr |
| Aug 20, 4:48 PM EDT | Tropical Storm Watch | PHI | Middlesex, Monmouth | 6 hr |
| Aug 20, 6:39 AM EDT | Areal Flood Advisory | PHI | Kent | 8 hr |
| Aug 20, 6:46 AM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Aug 20, 8:18 AM EDT | Areal Flood Advisory | PHI | Kent, Sussex | 117 min |
| Aug 20, 5:39 AM EDT | Special Weather Statement | PHI | Caroline | 36 min |
| Aug 20, 6:09 AM EDT | Special Weather Statement | PHI | Caroline | 36 min |
| Aug 20, 11:07 AM EDT | Areal Flood Advisory | PHI | Caroline, Talbot | 3 hr |
Nearby
Special Weather Statements in New Jersey, 2021Every special weather statement 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.