Alert archive / New Jersey / Flash Flood Warnings in 2018
Flash Flood Warning 104, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Sep 25, 2018, 6:03 PM EDT for Mercer County, Middlesex County, Monmouth County, New Jersey. It was in force for 3 hr. 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 25, 2018, 6:03 PM EDT (22:03 UTC)
- Expired
- Sep 25, 2018, 9:00 PM EDT
- In force
- 3 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Mercer County, NJ, Middlesex County, NJ, Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 39 km from the middle of the area, began a volume at 22:07 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, 10.1 hours before the alert went out and 146 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
- 457 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 413 m²/s²
- 0-3 km storm-relative helicity
- 577 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
710
WGUS51 KPHI 252203
FFWPHI
NJC021-023-025-260100-
/O.NEW.KPHI.FF.W.0104.180925T2203Z-180926T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
603 PM EDT TUE SEP 25 2018
The National Weather Service in Mount Holly NJ has issued a
* Flash Flood Warning for...
Southeastern Mercer County in central New Jersey...
Central Middlesex County in northern New Jersey...
Central Monmouth County in central New Jersey...
* Until 900 PM EDT.
* At 601 PM EDT, Doppler radar indicated heavy rain moving into the
warned area. A quick one to two inches of rain can be expected
which will be capable of producing flash flooding.
* Some locations that could experience flooding include...
New Brunswick, Old Bridge, East Brunswick, South Brunswick,
Sayreville, North Brunswick, Marlboro, Manalapan, Jamesburg,
Hightstown, Allentown, Roosevelt, Brownville, Dayton, Robertsville,
North Brunswick Township, Clearbrook Park, Clarksburg, Yorketown
and Twin Rivers.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Excessive runoff from heavy rainfall will cause flooding of small
creeks and streams, urban areas, highways, streets and underpasses as
well as other drainage areas and low lying spots.
&&
LAT...LON 4032 7420 4018 7440 4008 7455 4021 7464
4030 7446 4042 7458 4053 7436
$$
Fitzsimmons1 follow-up statement
091
WGUS71 KPHI 260051
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
851 PM EDT TUE SEP 25 2018
NJC021-023-025-260100-
/O.EXP.KPHI.FF.W.0104.000000T0000Z-180926T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mercer NJ-Middlesex NJ-Monmouth NJ-
851 PM EDT TUE SEP 25 2018
...THE FLASH FLOOD WARNING FOR SOUTHEASTERN MERCER...CENTRAL
MIDDLESEX AND CENTRAL MONMOUTH COUNTIES WILL EXPIRE AT 900 PM EDT...
The heavy rain has ended and flash flooding is no longer expected to
pose a threat. Please continue to heed any remaining road closures.
LAT...LON 4032 7420 4018 7440 4008 7455 4021 7464
4030 7446 4042 7458 4053 7436
$$
FitzsimmonsThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 25, 12:07 PM EDT | Special Weather Statement | PHI | Hunterdon, Morris, Somerset, Sussex, Warren | 23 min |
| Sep 25, 12:33 PM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Monmouth, Ocean | 8 hr |
| Sep 25, 12:47 PM EDT | Special Weather Statement | PHI | Morris, Somerset, Sussex | 43 min |
| Sep 25, 2:30 PM EDT | Areal Flood Advisory | PHI | Hunterdon, Morris, Somerset | 3 hr |
| Sep 25, 4:03 PM EDT | Areal Flood Advisory | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 1 more | 3 hr |
| Sep 25, 4:19 PM EDT | Flash Flood Warning | PHI | Camden | 4 hr |
| Sep 25, 5:14 PM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Somerset | 4 hr |
| Sep 25, 5:35 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester, Mercer | 4 hr |
| Sep 25, 6:39 PM EDT | Areal Flood Advisory | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 3 hr |
| Sep 25, 6:47 PM EDT | Tornado Warning | PHI | Burlington | 32 min |
| Sep 25, 7:21 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 17 min |
Nearby
Flash Flood Warnings in New Jersey, 2018Every flash flood warning 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.