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, 9:25 PM EDT for Cape May 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
- Sep 28, 2021, 9:25 PM EDT (01:25 UTC)
- Expired
- Sep 28, 2021, 10:00 PM EDT
- In force
- 35 min
- Issued by
- NWS Philadelphia/Mount Holly
- Hail
- 0.25 in
- Wind
- 30
County Cape May County, NJ
The radar
The Dover AFB radar (KDOX), 55 km from the middle of the area, began a volume at 01:26 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, 1.4 hours before the alert went out and 141 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.
743 WWUS81 KPHI 290125 SPSPHI Special Weather Statement National Weather Service Mount Holly NJ 925 PM EDT Tue Sep 28 2021 NJZ021>025-290200- Coastal Atlantic NJ-Cumberland NJ-Atlantic NJ- Atlantic Coastal Cape May NJ-Cape May NJ- 925 PM EDT Tue Sep 28 2021 ...A strong thunderstorm will impact portions of southwestern Atlantic, southeastern Cumberland and Cape May Counties through 1000 PM EDT... At 924 PM EDT, Doppler radar was tracking a strong thunderstorm near Bivalve, or 16 miles south of Millville, moving southeast at 35 mph. HAZARD...Pea size hail. SOURCE...Radar indicated. IMPACT...Minor damage to outdoor objects is possible. Locations impacted include... Vineland, Millville, Ocean City, Cape May, Cumberland, Somers Point, North Wildwood, Laurel Lake, Wildwood Crest, Woodbine, Sea Isle City, Estell Manor, Avalon, West Cape May, Stone Harbor, Corbin City, Cape May Court House, Leesburg, Scotch Bonnet and Beesleys Point. This includes Garden State Parkway between mile markers 0 and 30. 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. && LAT...LON 3911 7528 3948 7497 3925 7443 3879 7484 TIME...MOT...LOC 0124Z 295DEG 31KT 3916 7504 MAX HAIL SIZE...0.25 IN MAX WIND GUST...<30 MPH $$ PO
The 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, 8:55 PM EDT | Special Weather Statement | PHI | Cumberland, Salem | 50 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.