Alert archive / New Jersey / Special Weather Statements in 2020
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Aug 23, 2020, 3:13 PM EDT for Gloucester County, New Jersey. It was in force for 32 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 23, 2020, 3:13 PM EDT (19:13 UTC)
- Expired
- Aug 23, 2020, 3:45 PM EDT
- In force
- 32 min
- Issued by
- NWS Philadelphia/Mount Holly
County Gloucester County, NJ
The radar
The Philadelphia radar (KDIX), 75 km from the middle of the area, began a volume at 19:15 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 12:00Z, 7.2 hours before the alert went out and 180 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
- 1300 J/kg
- Mixed-layer CIN
- -11 J/kg
- Mixed-layer LCL
- 845 m above ground
- 0-6 km bulk shear
- 29 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 57 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.6
The text
As transmitted.
823 WWUS81 KPHI 231913 SPSPHI Special Weather Statement National Weather Service Mount Holly NJ 313 PM EDT Sun Aug 23 2020 NJZ016-017-021-022-231945- Salem-Cumberland-Atlantic-Gloucester- 313 PM EDT Sun Aug 23 2020 ...A STRONG THUNDERSTORM WILL AFFECT WEST CENTRAL ATLANTIC... NORTHEASTERN CUMBERLAND...EAST CENTRAL SALEM AND SOUTHEASTERN GLOUCESTER COUNTIES... At 312 PM EDT, a strong thunderstorm was located over Olivet, or 8 miles northwest of Vineland. The storm is nearly stationary. Wind gusts up to 40 mph and pea size hail are possible with this storm. Locations impacted include... Vineland, Buena, Newfield, Elmer, Olivet, Malaga, Seabrook Farms, Victory Lakes and Centerton. Frequent cloud to ground lightning is expected with this storm. Lightning can strike 10 miles away from a thunderstorm. Seek a safe shelter inside a building or vehicle. LAT...LON 3950 7522 3958 7526 3962 7495 3946 7487 TIME...MOT...LOC 1912Z 242DEG 1KT 3954 7513 $$ Gorse
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 11:30 AM EDT | Special Weather Statement | PHI | Atlantic | 30 min |
| Aug 23, 12:21 PM EDT | Special Weather Statement | PHI | Atlantic, Gloucester | 69 min |
| Aug 23, 12:59 PM EDT | Special Weather Statement | PHI | Burlington, Camden | 61 min |
| Aug 23, 1:45 PM EDT | Special Weather Statement | PHI | Salem | 60 min |
| Aug 23, 3:44 PM EDT | Special Weather Statement | PHI | Salem | 31 min |
| Aug 23, 3:53 PM EDT | Areal Flood Advisory | PHI | Atlantic, Cumberland, Gloucester, Salem | 3 hr |
| Aug 23, 4:10 PM EDT | Special Weather Statement | PHI | Salem | 35 min |
| Aug 23, 4:45 PM EDT | Special Weather Statement | PHI | Cumberland | 30 min |
| Aug 23, 4:53 PM EDT | Severe Thunderstorm Warning | PHI | Cumberland | 52 min |
| Aug 23, 5:18 PM EDT | Special Weather Statement | PHI | Atlantic | 27 min |
| Aug 23, 5:33 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Cape May, Cumberland | 57 min |
| Aug 23, 6:00 PM EDT | Special Marine Warning | PHI | 42 min | |
| Aug 23, 2:04 PM EDT | Areal Flood Advisory | PHI | Bucks, Philadelphia | 112 min |
| Aug 23, 2:07 PM EDT | Areal Flood Advisory | PHI | Delaware | 3 hr |
| Aug 23, 2:14 PM EDT | Areal Flood Advisory | PHI | Chester | 3 hr |
| Aug 23, 4:41 PM EDT | Areal Flood Advisory | PHI | Berks, Chester | 5 hr |
| Aug 23, 2:40 PM EDT | Areal Flood Advisory | PHI | Sussex | 3 hr |
| Aug 23, 3:08 PM EDT | Special Weather Statement | PHI | New Castle | 37 min |
| Aug 23, 5:17 PM EDT | Special Weather Statement | PHI | Kent | 28 min |
| Aug 23, 7:58 PM EDT | Severe Thunderstorm Warning | PHI | Kent | 25 min |
Nearby
Special Weather Statements in New Jersey, 2020Every special weather statement in 2020
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.