Alert archive / New Jersey / Flash Flood Warnings in 2022

Flash Flood Warning 10, NWS Philadelphia/Mount Holly

August 5, 2022Burlington County, Ocean County, New Jersey

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 5, 2022, 7:34 PM EDT for Burlington County, Ocean 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
Aug 5, 2022, 7:34 PM EDT (23:34 UTC)
Expired
Aug 5, 2022, 10:05 PM EDT
In force
3 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), 10 km from the middle of the area, began a volume at 23:36 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, 11.6 hours before the alert went out and 159 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, Brookhaven, NY at 12:00Z on 2022-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 202 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, Brookhaven, NY at 12:00Z on 2022-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939Sfc1 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
202 J/kg
Mixed-layer CIN
-144 J/kg
Mixed-layer LCL
1328 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
20 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

275 
WGUS51 KPHI 052334
FFWPHI
NJC005-029-060345-
/O.NEW.KPHI.FF.W.0010.220805T2334Z-220806T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
734 PM EDT Fri Aug 5 2022

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Northeastern Burlington County in southern New Jersey...
  Northwestern Ocean County in southern New Jersey...

* Until 1145 PM EDT.

* At 734 PM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1 and 2 inches of rain have fallen. The expected rainfall rate is 
  1 to 2 inches in 1 hour. Additional rainfall amounts of 1 to 2 
  inches are possible in the warned area. Flash flooding is ongoing 
  or expected to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  SOURCE...Radar and automated gauges.

  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...
  Toms River, Lakewood, Lakehurst, Pemberton, Wrightstown, Woodruff, 
  Cassville, Browns Mills, Cedar Glen West, Leisure Village 
  West-Pine Lake Park, Leisure Village, and Leisure Village East.

This includes the following highways...
	Garden State Parkway between mile markers 88 and 91.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4011 7443 4012 7434 4004 7445 4001 7447
      4002 7435 4008 7419 4009 7413 4004 7417
      4000 7425 3995 7446 3994 7461 3998 7470
      4006 7460

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

$$

Staarmann
3 follow-up statements
924 
WGUS71 KPHI 060007
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
807 PM EDT Fri Aug 5 2022

NJC005-029-060345-
/O.CON.KPHI.FF.W.0010.000000T0000Z-220806T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
807 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT THIS 
EVENING FOR NORTHEASTERN BURLINGTON AND NORTHWESTERN OCEAN 
COUNTIES...

At 807 PM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 1 
and 2.5 inches of rain have fallen. The expected rainfall rate is 1 
to 2 inches in 1 hour. 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 thunderstorms.

SOURCE...Radar and automated gauges.

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...
  Toms River, Lakewood, Lakehurst, Pemberton, Wrightstown, Woodruff, 
  Cassville, Browns Mills, Cedar Glen West, Leisure Village 
  West-Pine Lake Park, Leisure Village, and Leisure Village East.

This includes the following highways...
	Garden State Parkway between mile markers 88 and 91.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4011 7443 4012 7434 4004 7445 4001 7447
      4002 7435 4008 7419 4009 7413 4004 7417
      4000 7425 3995 7446 3994 7461 3998 7470
      4006 7460

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR

$$

Staarmann
825 
WGUS71 KPHI 060044
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
844 PM EDT Fri Aug 5 2022

NJC005-029-060345-
/O.CON.KPHI.FF.W.0010.000000T0000Z-220806T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
844 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1145 PM EDT THIS 
EVENING FOR NORTHEASTERN BURLINGTON AND NORTHWESTERN OCEAN 
COUNTIES...

At 844 PM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 1 
and 2.5 inches of rain have fallen. Flash flooding is ongoing or 
expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

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...
  Toms River, Lakewood, Lakehurst, Wrightstown, Woodruff, Cassville, 
  Cedar Glen West, Leisure Village West-Pine Lake Park, Browns 
  Mills, Leisure Village, Leisure Village East, and Crestwood 
  Village.

This includes the following highways...
	Garden State Parkway between mile markers 88 and 91.

While the heaviest rain has ended across the warned area, lingering 
flooding is expected to continue through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4011 7443 4012 7434 4004 7445 4001 7447
      4002 7435 4008 7419 4009 7413 4004 7417
      4000 7425 3995 7446 3998 7459 4002 7462
      4006 7460

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

Staarmann
431 
WGUS71 KPHI 060205
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1005 PM EDT Fri Aug 5 2022

NJC005-029-060215-
/O.CAN.KPHI.FF.W.0010.000000T0000Z-220806T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burlington NJ-Ocean NJ-
1005 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN BURLINGTON AND 
NORTHWESTERN OCEAN COUNTIES...

The heavy rain has ended and flood waters are receding. Remain alert 
for minor flooding of low lying areas. Do not drive around 
barricades.

LAT...LON 4011 7443 4012 7434 4004 7445 4001 7447
      4002 7435 4008 7419 4009 7413 4004 7417
      4000 7425 3995 7446 3998 7459 4002 7462
      4006 7460

$$

Staarmann

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 4, 8:09 PM EDTSpecial Weather StatementPHISomerset36 min
Aug 4, 8:17 PM EDTSpecial Weather StatementPHICumberland, Gloucester, Salem28 min
Aug 4, 8:25 PM EDTSpecial Marine WarningPHI95 min
Aug 4, 9:00 PM EDTSpecial Marine WarningPHI60 min
Aug 4, 9:06 PM EDTSpecial Weather StatementPHIMiddlesex24 min
Aug 4, 9:16 PM EDTSpecial Weather StatementPHIMiddlesex29 min
Aug 4, 9:39 PM EDTSevere Thunderstorm WarningPHIMercer, Middlesex, Monmouth51 min
Aug 4, 9:44 PM EDTSpecial Weather StatementPHICape May, Cumberland31 min
Aug 4, 9:52 PM EDTSpecial Marine WarningPHI38 min
Aug 4, 10:25 PM EDTSpecial Weather StatementPHIMonmouth35 min
Aug 4, 11:36 PM EDTSpecial Marine WarningPHI21 min
Aug 5, 12:13 PM EDTSpecial Marine WarningPHI62 min
Aug 5, 1:54 PM EDTSpecial Marine WarningPHI37 min
Aug 5, 3:05 PM EDTSpecial Marine WarningPHI42 min
Aug 5, 3:23 PM EDTSpecial Marine WarningPHI67 min
Aug 5, 5:06 PM EDTSpecial Weather StatementPHIMonmouth24 min
Aug 5, 5:43 PM EDTSpecial Weather StatementPHIOcean32 min
Aug 5, 6:02 PM EDTAreal Flood AdvisoryPHIMonmouth, Ocean47 min
Aug 5, 6:18 PM EDTSpecial Weather StatementPHIMonmouth27 min
Aug 5, 6:26 PM EDTSevere Thunderstorm WarningPHIMonmouth, Ocean49 min
Aug 5, 6:47 PM EDTFlash Flood WarningPHIMonmouth, Ocean3 hr
Aug 5, 7:06 PM EDTSevere Thunderstorm WarningPHIBurlington, Monmouth, Ocean54 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.