Alert archive / New Jersey / Flash Flood Warnings in 2022

Flash Flood Warning 12, NWS Philadelphia/Mount Holly

August 22, 2022Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 22, 2022, 4:37 AM EDT for Burlington County, Ocean County, New Jersey. It was in force for 4 hr. 2 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 22, 2022, 4:37 AM EDT (08:37 UTC)
Expired
Aug 22, 2022, 8:45 AM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
None

Counties Burlington County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 31 km from the middle of the area, began a volume at 08:40 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.

What was reported inside it

TimeReportWhereRemark
Aug 22, 6:00 AM EDTFLASH FLOOD2 Se Stafford Twp., NJCORRECTS PREVIOUS FLASH FLOOD REPORT FROM 2 SE STAFFORD TWP. ADJUSTS TIME FOR FLOODING ALONG ROUTE 72 INTO LONG BEACH ISLAND. VEHICLES WERE REPORTED TO BE STUCK/STRANDED. BRIDGE INTO LBI WAS CLOSED FOR ABOUT 30 MINUTES.
Aug 22, 6:45 AM EDTFLASH FLOOD2 Se Stafford Twp., NJFLOODING ALONG ROUTE 72 INTO LONG BEACH ISLAND FLOODED OUT CARS AND RESULTED IN A ROAD CLOSURE FOR ABOUT 30 MINUTES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Wallops Is Stn, VA (KWAL), launched 00:00Z, 8.6 hours before the alert went out and 217 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-pSkew-T log-p diagram, Wallops Is Stn, VA at 00:00Z on 2022-08-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 353 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Wallops Is Stn, VA at 00:00Z on 2022-08-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
353 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
876 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

129 
WGUS51 KPHI 220837
FFWPHI
NJC005-029-221245-
/O.NEW.KPHI.FF.W.0012.220822T0837Z-220822T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
437 AM EDT Mon Aug 22 2022

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Eastern Burlington County in southern New Jersey...
  South Central Ocean County in southern New Jersey...

* Until 845 AM EDT.

* At 437 AM EDT, Doppler radar indicated heavy rain across the 
  warned area. Between 2 and 3 inches of rain have fallen. 
  Additional rainfall amounts up to 1 inch are possible in the 
  warned area. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Flash flooding caused by heavy rain.

  SOURCE...Radar.

  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...
  Barnegat, Tuckerton, Beach Haven West, Brookville, Bass River 
  State Forest, Mystic Island, Ocean Acres, Manahawkin, and Waretown.

This includes the following highways...
	Garden State Parkway between mile markers 53 and 71.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3965 7445 3983 7427 3979 7418 3975 7419
      3975 7420 3974 7419 3974 7418 3964 7425
      3964 7426 3955 7440 3956 7440 3955 7441

FLASH FLOOD...RADAR INDICATED

$$

Davis
2 follow-up statements
942 
WGUS71 KPHI 221008
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
608 AM EDT Mon Aug 22 2022

NJC005-221018-
/O.CAN.KPHI.FF.W.0012.000000T0000Z-220822T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-
608 AM EDT Mon Aug 22 2022

...FLASH FLOOD WARNING IS CANCELLED FOR EASTERN BURLINGTON COUNTY...

Flooding is no longer expected to pose a threat. Please continue to 
heed remaining road closures.

LAT...LON 3970 7439 3982 7426 3979 7418 3975 7420
      3974 7419 3974 7418 3972 7420 3964 7425
      3962 7437 3965 7439

$$

NJC029-221245-
/O.CON.KPHI.FF.W.0012.000000T0000Z-220822T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-
608 AM EDT Mon Aug 22 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 845 AM EDT THIS 
MORNING FOR SOUTH CENTRAL OCEAN COUNTY...

At 608 AM EDT, Doppler radar indicated heavy rain across the warned 
area. Between 3 and 4 inches of rain have fallen. Additional 
rainfall amounts up to 0.5 inches are possible in the warned area. 
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by heavy rain.

SOURCE...Radar.

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...
  Barnegat, Beach Haven West, Ocean Acres, Manahawkin, and Waretown.

This includes the following highways...
	Garden State Parkway between mile markers 57 and 71.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3970 7439 3982 7426 3979 7418 3975 7420
      3974 7419 3974 7418 3972 7420 3964 7425
      3962 7437 3965 7439

FLASH FLOOD...RADAR INDICATED

$$

SFJ
512 
WGUS71 KPHI 221237
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
837 AM EDT Mon Aug 22 2022

NJC029-221247-
/O.EXP.KPHI.FF.W.0012.000000T0000Z-220822T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Ocean NJ-
837 AM EDT Mon Aug 22 2022

...FLASH FLOOD WARNING WILL EXPIRE AT 845 AM EDT THIS MORNING FOR 
SOUTH CENTRAL OCEAN COUNTY...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat.

LAT...LON 3970 7439 3982 7426 3979 7418 3975 7420
      3974 7419 3974 7418 3972 7420 3964 7425
      3962 7437 3965 7439

$$

MPS

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 22, 12:18 AM EDTAreal Flood AdvisoryPHIGloucester, Salem64 min
Aug 22, 2:01 AM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester99 min
Aug 22, 3:42 AM EDTAreal Flood AdvisoryPHIHunterdon61 min
Aug 22, 4:22 AM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Gloucester, Ocean3 hr
Aug 22, 5:35 AM EDTSpecial Marine WarningPHI55 min
Aug 22, 5:46 AM EDTFlash Flood WarningPHIOcean5 hr
Aug 22, 6:22 AM EDTSpecial Marine WarningPHI53 min
Aug 22, 9:46 AM EDTFlash Flood WarningPHIHunterdon, Somerset4 hr
Aug 22, 11:02 AM EDTFlash Flood WarningPHIMorris, Sussex3 hr
Aug 22, 11:39 AM EDTAreal Flood AdvisoryPHIHunterdon, Warren3 hr
Aug 22, 1:04 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset3 hr
Aug 22, 3:24 PM EDTAreal Flood AdvisoryPHIMorris43 min
Aug 22, 4:04 PM EDTAreal Flood AdvisoryPHIBurlington60 min
Aug 22, 4:46 PM EDTAreal Flood AdvisoryPHIMiddlesex86 min
Aug 22, 5:41 PM EDTAreal Flood AdvisoryPHIMiddlesex, Monmouth53 min
Aug 22, 5:44 PM EDTSevere Thunderstorm WarningPHIHunterdon, Warren46 min
Aug 22, 6:26 PM EDTSpecial Weather StatementPHIMorris64 min

Nearby

Flash Flood Warnings in New Jersey, 2022Every 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.