Alert archive / New Jersey / Flash Flood Warnings in 2022

Flash Flood Warning 8, NWS Philadelphia/Mount Holly

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

NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 5, 2022, 6:47 PM EDT for Monmouth County, Ocean County, New Jersey. It was in force for 3 hr. 8 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 5, 2022, 6:47 PM EDT (22:47 UTC)
Expired: Aug 5, 2022, 10:06 PM EDT
In force: 3 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: None

Counties Monmouth County, NJ, Ocean County, NJ

The radar

The Philadelphia radar (KDIX), 20 km from the middle of the area, began a volume at 22:50 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

Time	Report	Where	Remark
Aug 5, 7:00 PM EDT	FLASH FLOOD	1 E Lakewood Twp, NJ	LAW ENFORCEMENT IN LAKEWOOD TOWNSHIP REPORTED VEHICLES STRANDED AND HOUSES FLOODING AROUND TOWN. NUMEROUS CALLS INTO THE OFFICE.
Aug 5, 7:30 PM EDT	FLASH FLOOD	1 Nw Lakewood Twp, NJ	VIDEO ON SOCIAL MEDIA OF VEHICLES STRANDED AT COUNTY LINE ROAD AND PINE PARK. TIME GIVEN IN REPORT.
Aug 5, 7:30 PM EDT	FLASH FLOOD	Jackson, NJ	PLUMSTED TWP 911 CALL CENTER REPORTS A WATER RESCUE OCCURRED IN JACKSON. NO REPORTED INJURIES. TIME ESTIMATED VIA RADAR.
Aug 5, 7:32 PM EDT	HEAVY RAIN 3.7	2 Ssw Jackson, NJ	TRAINED SPOTTER REPORTS 3.7 INCHES OF RAIN MEASURED IN PREVIOUS TWO HOURS.
Aug 5, 8:00 PM EDT	FLASH FLOOD	1 S Lakewood Twp, NJ	ROUTE 9 CLOSED IN BOTH DIRECTIONS AT JAMES STREET AND PINES STREET DUE TO HIGH WATER.
Aug 5, 8:15 PM EDT	HEAVY RAIN 2.42	2 Ne Lakewood, NJ	MESONET STATION LAWN4 LAKEWOOD.
Aug 5, 8:30 PM EDT	HEAVY RAIN 2.67	Ramtown, NJ	MESONET STATION CW1341 SOUTH HOWELL.
Aug 5, 8:51 PM EDT	HEAVY RAIN 4.14	2 Sse Howell, NJ	TRAINED SPOTTER REPORTS STORM TOTAL RAINFALL OF 4.14 INCHES.

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

The nearest sounding before it

Brookhaven, NY (KOKX), launched 12:00Z, 10.8 hours before the alert went out and 147 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: 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.

355 
WGUS51 KPHI 052247
FFWPHI
NJC025-029-060300-
/O.NEW.KPHI.FF.W.0008.220805T2247Z-220806T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Southeastern Monmouth County in central New Jersey...
  Northwestern Ocean County in southern New Jersey...

* Until 1100 PM EDT.

* At 647 PM EDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. Between 
  1 and 3 inches of rain have fallen. The expected rainfall rate is 
  1.5 inches in 1 hour. Additional rainfall amounts of 0.5 to 1.5 
  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, Jackson, Lakehurst, Cedar Glen West, Vista 
  Center, Ramtown, and Allenwood.

This includes the following highways...
	Interstate 195 in New Jersey between mile markers 30 and 33.
	Garden State Parkway between mile markers 92 and 96.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4017 7418 4017 7411 4014 7411 4013 7411
      4009 7413 4007 7420 4004 7428 4001 7434
      4000 7445 4001 7448 4004 7446 4007 7442
      4012 7435 4015 7429

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1.5 INCHES IN 1 HOUR

$$

Staarmann

5 follow-up statements

457 
WGUS71 KPHI 052312
FFSPHI

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

NJC025-029-060300-
/O.CON.KPHI.FF.W.0008.000000T0000Z-220806T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-Ocean NJ-
712 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS 
EVENING FOR SOUTHEASTERN MONMOUTH AND NORTHWESTERN OCEAN COUNTIES...

At 712 PM EDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain across the warned area. Between 2 
and 4 inches of rain have fallen. The expected rainfall rate is 1.5 
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, Jackson, Lakehurst, Cedar Glen West, Vista 
  Center, Ramtown, and Allenwood.

This includes the following highways...
	Interstate 195 in New Jersey near mile marker 26...and
	between mile markers 30 and 33.
	Garden State Parkway between mile markers 92 and 96.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4017 7418 4017 7411 4014 7411 4013 7411
      4009 7413 4007 7420 4004 7428 4001 7434
      4000 7445 4001 7448 4004 7446 4007 7442
      4012 7435 4015 7429

FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1.5 INCHES IN 1 HOUR

$$

Staarmann

904 
WGUS71 KPHI 052315
FFSPHI

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

NJC025-029-060300-
/O.CON.KPHI.FF.W.0008.000000T0000Z-220806T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-Ocean NJ-
715 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS 
EVENING FOR SOUTHEASTERN MONMOUTH AND NORTHWESTERN OCEAN COUNTIES...

At 715 PM EDT, local law enforcement reported thunderstorms 
producing heavy rain across the warned area. Between 2 and 4 inches 
of rain have fallen. The expected rainfall rate is 1.5 inches in 1 
hour. Additional rainfall amounts of 1 to 2 inches are possible in 
the warned area. Flash flooding is already occurring.

HAZARD...Life threatening flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets, and underpasses.

Some locations that may experience flash flooding include...
  Toms River, Lakewood, Jackson, Lakehurst, Cedar Glen West, Vista 
  Center, Ramtown, and Allenwood.

This includes the following highways...
	Interstate 195 in New Jersey near mile marker 26...and
	between mile markers 30 and 33.
	Garden State Parkway between mile markers 92 and 96.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4017 7418 4017 7411 4014 7411 4013 7411
      4009 7413 4007 7420 4004 7428 4001 7434
      4000 7445 4001 7448 4004 7446 4007 7442
      4012 7435 4015 7429

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1.5 INCHES IN 1 HOUR

$$

Staarmann

689 
WGUS71 KPHI 052347
FFSPHI

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

NJC025-029-060300-
/O.CON.KPHI.FF.W.0008.000000T0000Z-220806T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-Ocean NJ-
747 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS 
EVENING FOR SOUTHEASTERN MONMOUTH AND NORTHWESTERN OCEAN COUNTIES...

At 747 PM EDT, local law enforcement reported thunderstorms 
producing heavy rain across the warned area. Between 2.5 and 5 
inches of rain have fallen. The expected rainfall rate is 1 inch in 
1 hour. Additional rainfall amounts up to 1 inch are possible in the 
warned area. Flash flooding is already occurring.

HAZARD...Life threatening flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets, and underpasses.

Some locations that may experience flash flooding include...
  Toms River, Lakewood, Jackson, Lakehurst, Cedar Glen West, Vista 
  Center, Ramtown, and Allenwood.

This includes the following highways...
	Interstate 195 in New Jersey near mile marker 26...and
	between mile markers 30 and 33.
	Garden State Parkway between mile markers 92 and 96.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4017 7418 4017 7411 4014 7411 4013 7411
      4009 7413 4007 7420 4004 7428 4001 7434
      4000 7445 4001 7448 4004 7446 4007 7442
      4012 7435 4015 7429

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
EXPECTED RAINFALL RATE...1 INCH IN 1 HOUR

$$

Staarmann

733 
WGUS71 KPHI 060024
FFSPHI

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

NJC025-029-060300-
/O.CON.KPHI.FF.W.0008.000000T0000Z-220806T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-Ocean NJ-
824 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 11 PM EDT THIS 
EVENING FOR SOUTHEASTERN MONMOUTH AND NORTHWESTERN OCEAN COUNTIES...

At 824 PM EDT, local law enforcement reported thunderstorms 
producing heavy rain across the warned area. Between 2.5 and 5 
inches of rain have fallen. Additional rainfall amounts up to 0.5 
inches are possible in the warned area. Flash flooding is already 
occurring.

HAZARD...Life threatening flash flooding caused by thunderstorms.

SOURCE...Law enforcement reported.

IMPACT...Life threatening flash flooding of creeks and streams,
         urban areas, highways, streets, and underpasses.

Some locations that may experience flash flooding include...
  Toms River, Lakewood, Jackson, Lakehurst, Cedar Glen West, Vista 
  Center, Ramtown, and Allenwood.

This includes the following highways...
	Interstate 195 in New Jersey near mile marker 26...and
	between mile markers 30 and 33.
	Garden State Parkway between mile markers 92 and 96.

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 4017 7418 4017 7411 4014 7411 4013 7411
      4009 7413 4007 7420 4004 7428 4001 7434
      4000 7445 4001 7448 4004 7446 4007 7442
      4012 7435 4015 7429

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Staarmann

085 
WGUS71 KPHI 060206
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
1006 PM EDT Fri Aug 5 2022

NJC025-029-060216-
/O.CAN.KPHI.FF.W.0008.000000T0000Z-220806T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-Ocean NJ-
1006 PM EDT Fri Aug 5 2022

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN MONMOUTH 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 4017 7418 4017 7411 4014 7411 4013 7411
      4009 7413 4007 7420 4004 7428 4001 7434
      4000 7445 4001 7448 4004 7446 4007 7442
      4012 7435 4015 7429

$$

Staarmann

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 8:09 PM EDT	Special Weather Statement	PHI	Somerset	36 min
Aug 4, 8:17 PM EDT	Special Weather Statement	PHI	Cumberland, Gloucester, Salem	28 min
Aug 4, 8:25 PM EDT	Special Marine Warning	PHI		95 min
Aug 4, 9:00 PM EDT	Special Marine Warning	PHI		60 min
Aug 4, 9:06 PM EDT	Special Weather Statement	PHI	Middlesex	24 min
Aug 4, 9:16 PM EDT	Special Weather Statement	PHI	Middlesex	29 min
Aug 4, 9:39 PM EDT	Severe Thunderstorm Warning	PHI	Mercer, Middlesex, Monmouth	51 min
Aug 4, 9:44 PM EDT	Special Weather Statement	PHI	Cape May, Cumberland	31 min
Aug 4, 9:52 PM EDT	Special Marine Warning	PHI		38 min
Aug 4, 10:25 PM EDT	Special Weather Statement	PHI	Monmouth	35 min
Aug 4, 11:36 PM EDT	Special Marine Warning	PHI		21 min
Aug 5, 12:13 PM EDT	Special Marine Warning	PHI		62 min
Aug 5, 1:54 PM EDT	Special Marine Warning	PHI		37 min
Aug 5, 3:05 PM EDT	Special Marine Warning	PHI		42 min
Aug 5, 3:23 PM EDT	Special Marine Warning	PHI		67 min
Aug 5, 5:06 PM EDT	Special Weather Statement	PHI	Monmouth	24 min
Aug 5, 5:43 PM EDT	Special Weather Statement	PHI	Ocean	32 min
Aug 5, 6:02 PM EDT	Areal Flood Advisory	PHI	Monmouth, Ocean	47 min
Aug 5, 6:18 PM EDT	Special Weather Statement	PHI	Monmouth	27 min
Aug 5, 6:26 PM EDT	Severe Thunderstorm Warning	PHI	Monmouth, Ocean	49 min
Aug 5, 7:06 PM EDT	Severe Thunderstorm Warning	PHI	Burlington, Monmouth, Ocean	54 min
Aug 5, 7:34 PM EDT	Flash Flood Warning	PHI	Burlington, Ocean	3 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.