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 Sep 28, 2021, 8:55 PM EDT for Cumberland County, Salem County, New Jersey. It was in force for 50 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
- Sep 28, 2021, 8:55 PM EDT (00:55 UTC)
- Expired
- Sep 28, 2021, 9:45 PM EDT
- In force
- 50 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.25 in
- Wind
- 30
Counties Cumberland County, NJ, Salem County, NJ
The radar
The Dover AFB radar (KDOX), 66 km from the middle of the area, began a volume at 00:58 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, 0.9 hours before the alert went out and 159 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
- 1162 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 1324 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.8
The text
As transmitted.
792
WWUS81 KPHI 290055
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
855 PM EDT Tue Sep 28 2021
NJZ016-021-290145-
Salem NJ-Cumberland NJ-
855 PM EDT Tue Sep 28 2021
...Strong thunderstorms will impact portions of Cumberland and
southern Salem Counties through 945 PM EDT...
At 852 PM EDT, Doppler radar was tracking a few areas of strong
thunderstorms. One was over Alloway, or 8 miles northwest of
Bridgeton, moving southeast at 30 mph. The other across northern
Delaware Bay adjacent to Sea Breeze in Cumberland County. This storm
was moving southeast at 25 mph.
HAZARD...Pea size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to outdoor objects is possible.
Locations impacted include...
Vineland, Millville, Bridgeton, Cumberland, Laurel Lake, Woodstown,
Alloway, Quinton, Elmer, Greenwich, Shiloh, Newport, Leesburg,
Hancocks Bridge, Newport Meadows, Bricksboro, Fortesque, Mauricetown,
Olivet and Port Norris.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
&&
LAT...LON 3910 7516 3948 7555 3967 7528 3953 7508
3956 7507 3956 7505 3942 7486 3932 7487
3931 7488 3923 7490 3923 7492 3918 7491
3919 7503 3921 7502 3921 7505
TIME...MOT...LOC 0052Z 324DEG 26KT 3953 7533
MAX HAIL SIZE...0.25 IN
MAX WIND GUST...<30 MPH
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 28, 8:00 PM EDT | Special Weather Statement | PHI | Gloucester, Salem | 45 min |
| Sep 28, 9:25 PM EDT | Special Weather Statement | PHI | Cape May | 35 min |
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.