Alert archive / New Jersey / Special Weather Statements in 2018
Special Weather Statement, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this special weather statement at Sep 18, 2018, 4:12 PM EDT for Atlantic County, New Jersey. It was in force for 33 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 18, 2018, 4:12 PM EDT (20:12 UTC)
- Expired
- Sep 18, 2018, 4:45 PM EDT
- In force
- 33 min
- Issued by
- NWS Philadelphia/Mount Holly
County Atlantic County, NJ
The radar
The Philadelphia radar (KDIX), 48 km from the middle of the area, began a volume at 20:13 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
Brookhaven, NY (KOKX), launched 12:00Z, 8.2 hours before the alert went out and 197 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
- 1035 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 495 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 220 m²/s²
- 0-3 km storm-relative helicity
- 238 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.3
The text
As transmitted.
283
WWUS81 KPHI 182012
SPSPHI
Special Weather Statement
National Weather Service Mount Holly NJ
412 PM EDT TUE SEP 18 2018
NJZ020-022-025>027-182045-
Coastal Atlantic-Coastal Ocean-Ocean-Atlantic-Southeastern
Burlington-
412 PM EDT TUE SEP 18 2018
...A LINE OF STRONG THUNDERSTORMS WILL AFFECT CENTRAL ATLANTIC...
SOUTHEASTERN OCEAN AND SOUTHEASTERN BURLINGTON COUNTIES...
At 412 PM EDT, radar indicated strong thunderstorms were located
along a line extending from Beach Haven West to Mays Landing.
Movement was east at 40 mph.
Winds up to 40 mph are possible with these storms.
Locations impacted include...
Atlantic City, Barnegat, Pleasantville, Brigantine, Absecon, Egg
Harbor City, Tuckerton, Estell Manor, Port Republic, Pomona, Mays
Landing, Wading River, Dorothy, Bass River State Forest, New Gretna,
Beach Haven West, Mystic Island, Ocean Acres and Manahawkin.
Torrential rainfall is also occurring with these storms, and may
cause localized flooding. Do not drive your vehicle through flooded
roadways.
LAT...LON 3953 7427 3951 7428 3955 7427 3950 7429
3954 7439 3954 7440 3956 7441 3941 7440
3948 7438 3949 7431 3947 7430 3940 7437
3937 7485 3942 7485 3975 7429 3978 7410
TIME...MOT...LOC 2012Z 250DEG 35KT 3969 7423 3944 7473
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 18, 4:13 AM EDT | Special Weather Statement | PHI | Camden, Gloucester, Salem | 92 min |
| Sep 18, 9:27 AM EDT | Flash Flood Watch | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more | 6 hr |
| Sep 18, 10:59 AM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Monmouth, Somerset | 4 hr |
| Sep 18, 12:01 PM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Somerset | 4 hr |
| Sep 18, 12:16 PM EDT | Special Weather Statement | PHI | Middlesex | 29 min |
| Sep 18, 12:36 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Mercer, Middlesex, Monmouth and 2 more | 3 hr |
| Sep 18, 1:20 PM EDT | Special Weather Statement | PHI | Burlington | 25 min |
| Sep 18, 1:35 PM EDT | Special Marine Warning | PHI | 55 min | |
| Sep 18, 2:51 PM EDT | Special Marine Warning | PHI | 38 min | |
| Sep 18, 2:55 PM EDT | Special Weather Statement | PHI | Ocean | 35 min |
| Sep 18, 3:02 PM EDT | Areal Flood Advisory | PHI | Burlington, Ocean | 3 hr |
| Sep 18, 3:12 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Ocean | 47 min |
| Sep 18, 3:47 PM EDT | Special Weather Statement | PHI | Ocean | 28 min |
| Sep 18, 4:47 PM EDT | Areal Flood Advisory | PHI | Atlantic, Cape May, Cumberland, Ocean | 2 hr |
| Sep 18, 5:17 PM EDT | Flash Flood Warning | PHI | Atlantic | 113 min |
| Sep 18, 1:13 AM EDT | Special Weather Statement | PHI | Chester | 62 min |
| Sep 18, 2:09 AM EDT | Special Weather Statement | PHI | Chester, Delaware, Montgomery, Philadelphia | 81 min |
| Sep 18, 2:38 AM EDT | Areal Flood Advisory | PHI | Chester, Montgomery | 4 hr |
| Sep 18, 6:27 AM EDT | Areal Flood Advisory | PHI | Carbon, Monroe | 4 hr |
| Sep 18, 10:57 AM EDT | Areal Flood Advisory | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 3 hr |
| Sep 18, 5:26 PM EDT | Special Weather Statement | PHI | Sussex | 34 min |
Nearby
Special Weather Statements in New Jersey, 2018Every special weather statement in 2018
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.