Alert archive / New Jersey / Areal Flood Advisories in 2021
Areal Flood Advisory 6, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this areal flood advisory at Mar 24, 2021, 5:08 PM EDT for 4 counties in New Jersey. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 24, 2021, 5:08 PM EDT (21:08 UTC)
- Expired
- Mar 24, 2021, 8:15 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
Counties Burlington County, NJ, Camden County, NJ, Monmouth County, NJ, Ocean County, NJ
The radar
The Philadelphia radar (KDIX), 26 km from the middle of the area, began a volume at 21:07 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, 9.1 hours before the alert went out and 161 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1342 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 82 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
866
WGUS81 KPHI 242108
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
508 PM EDT Wed Mar 24 2021
NJC005-007-025-029-250015-
/O.NEW.KPHI.FA.Y.0006.210324T2108Z-210325T0015Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Camden NJ-Monmouth NJ-Ocean NJ-
508 PM EDT Wed Mar 24 2021
The National Weather Service in Mount Holly has issued a
* Flood Advisory for...
Central Monmouth County in central New Jersey...
Northern Burlington County in southern New Jersey...
Central Camden County in southern New Jersey...
Northwestern Ocean County in southern New Jersey...
* Until 815 PM EDT.
* At 508 PM EDT, Doppler radar indicated heavy rain. Minor flooding
is ongoing or expected to begin shortly in the advisory area.
Between 0.5 and 1 inch of rain has fallen.
Some locations that may experience flooding include...
Jackson, Howell, Evesham, Mount Laurel, Marlboro, Manalapan,
Willingboro, Medford, Tinton Falls, Holmdel, Lumberton, and
Florence.
This includes the following highways...
New Jersey Turnpike between exits 4 and 7A.
Interstate 295 in New Jersey between mile markers 36 and 57.
Interstate 195 in New Jersey between mile markers 9 and 29.
Garden State Parkway between mile markers 106 and 109.
Additional rainfall of 0.5 to 1 inch is expected over the area. This
additional rain will result in minor flooding.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Advisory means river or stream flows are elevated, or
ponding of water in urban or other areas is occurring or is imminent.
&&
LAT...LON 4017 7468 4014 7459 4018 7461 4019 7456
4025 7448 4028 7440 4032 7436 4036 7428
4032 7402 3995 7443 3975 7478 3999 7505
$$
SFJ1 follow-up statement
320
WGUS81 KPHI 250007
FLSPHI
Flood Advisory
National Weather Service Mount Holly NJ
807 PM EDT Wed Mar 24 2021
NJC005-007-025-029-250017-
/O.EXP.KPHI.FA.Y.0006.000000T0000Z-210325T0015Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Camden NJ-Monmouth NJ-Ocean NJ-
807 PM EDT Wed Mar 24 2021
...FLOOD ADVISORY WILL EXPIRE AT 815 PM EDT THIS EVENING FOR CENTRAL
MONMOUTH, NORTHERN BURLINGTON, CENTRAL CAMDEN, AND NORTHWESTERN
OCEAN COUNTIES...
The heavy rain has ended. Flooding is no longer expected to pose a
widespread threat. Please continue to heed remaining road closures.
LAT...LON 4017 7468 4014 7459 4018 7461 4019 7456
4025 7448 4028 7440 4032 7436 4036 7428
4032 7402 3995 7443 3975 7478 3999 7505
$$
SFJThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 2:45 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Mercer, Middlesex, Somerset | 5 hr |
| Mar 24, 3:02 PM EDT | Marine Dense Fog Advisory | PHI | 21 hr | |
| Mar 24, 7:09 PM EDT | Dense Fog Advisory | PHI | Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more | 14 hr |
Nearby
Areal Flood Advisories in New Jersey, 2021Every areal flood advisory 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.