Alert archive / New Jersey / Flash Flood Warnings in 2022

Flash Flood Warning 6, NWS Philadelphia/Mount Holly

July 25, 2022Atlantic County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 25, 2022, 8:16 PM EDT for Atlantic County, New Jersey. It was in force for 66 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: Jul 25, 2022, 8:16 PM EDT (00:16 UTC)
Expired: Jul 25, 2022, 9:22 PM EDT
In force: 66 min
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

County Atlantic County, NJ

The radar

The Philadelphia radar (KDIX), 62 km from the middle of the area, began a volume at 00:16 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, 0.3 hours before the alert went out and 179 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2331 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 1107 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

553 
WGUS51 KPHI 260016
FFWPHI
NJC001-260415-
/O.NEW.KPHI.FF.W.0006.220726T0016Z-220726T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
816 PM EDT Mon Jul 25 2022

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Southeastern Atlantic County in southern New Jersey...

* Until 1215 AM EDT.

* At 816 PM EDT, local law enforcement reported multiple cars stuck 
  in flooded waters near the intersection of English Creek Ave and 
  US Route 40. Up to 3 inches of rain have fallen. Flash flooding is 
  already occurring.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Law enforcement reported.

  IMPACT...Flooding of small creeks and streams, urban areas,
           highways, streets, and underpasses as well as other
           drainage and low lying areas.

* Some locations that may experience flash flooding include...
  Atlantic City, Pleasantville, Brigantine, Northfield, Absecon, 
  Estell Manor, Port Republic, Pomona, and Mays Landing.

This includes the following highways...
	Garden State Parkway between mile markers 34 and 44.
	Atlantic City Expressway between mile markers 2 and 13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Be aware of your surroundings and do not drive on flooded roads.

&&

LAT...LON 3936 7475 3942 7478 3945 7472 3951 7453
      3949 7426 3938 7428 3937 7442 3937 7443
      3937 7445 3937 7446 3937 7449 3937 7452
      3937 7458 3936 7471

FLASH FLOOD...OBSERVED

$$

Robertson

1 follow-up statement

345 
WGUS71 KPHI 260122
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
922 PM EDT Mon Jul 25 2022

NJC001-260132-
/O.CAN.KPHI.FF.W.0006.000000T0000Z-220726T0415Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Atlantic NJ-
922 PM EDT Mon Jul 25 2022

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN ATLANTIC 
COUNTY...

The heavy rain has ended and flood waters have receded. Flooding is 
no longer expected to pose a threat.

LAT...LON 3936 7475 3942 7478 3945 7472 3951 7453
      3949 7426 3938 7428 3937 7442 3937 7443
      3937 7445 3937 7446 3937 7449 3937 7452
      3937 7458 3936 7471

$$

Robertson

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 25, 8:18 PM EDT	Special Marine Warning	PHI		44 min
Jul 25, 8:22 PM EDT	Severe Thunderstorm Warning	PHI	Cape May	21 min
Jul 26, 1:11 AM EDT	Special Marine Warning	PHI		49 min

Nearby

Flash Flood Warnings in New Jersey, 2022 Every flash flood warning in 2022

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.