Alert archive / New Jersey / Flash Flood Warnings in 2024
Flash Flood Warning 32, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Aug 6, 2024, 4:55 PM EDT for Monmouth County, New Jersey. It was in force for 6 hr. 3 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 6, 2024, 4:55 PM EDT (20:55 UTC)
- Expired
- Aug 6, 2024, 11:00 PM EDT
- In force
- 6 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Damage threat
- Considerable
- Flood severity
- None
County Monmouth County, NJ
The radar
The Philadelphia radar (KDIX), 49 km from the middle of the area, began a volume at 20:58 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 6, 6:47 PM EDT | FLASH FLOOD | Monmouth Beach, NJ | Relayed report of a disabled vehicle submerged in water along River Ave. Time estimated. |
| Aug 6, 9:48 PM EDT | RAIN 2.23 | 1 Wnw Neptune City, NJ | Mesonet station GW4858 NEPTUNE. |
| Aug 6, 9:48 PM EDT | RAIN 3.66 | 1 Ene Hamilton, NJ | Mesonet station NPTNG 2 WNW Neptune City. |
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, 8.9 hours before the alert went out and 119 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
- 1440 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 57 m²/s²
- 0-3 km storm-relative helicity
- 99 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.2
The text
As transmitted.
823
WGUS51 KPHI 062055
FFWPHI
NJC025-070100-
/O.NEW.KPHI.FF.W.0032.240806T2055Z-240807T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
455 PM EDT Tue Aug 6 2024
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Eastern Monmouth County in central New Jersey...
* Until 900 PM EDT.
* At 455 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 3 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is already occurring
with several road closures already being reported.
HAZARD...Life threatening flash flooding caused by
thunderstorms.
SOURCE...Radar.
IMPACT...Life threatening flash flooding of creeks and streams,
urban areas, highways, streets, and underpasses.
* Some locations that may experience flash flooding include...
Long Branch, Asbury Park, Tinton Falls, Red Bank, Elberon,
Allenwood, Eatontown, West Long Branch, Rumson, Little Silver,
Oceanport and Neptune City.
This includes the following highways...
Interstate 195 in New Jersey between mile markers 33 and 34.
Garden State Parkway between mile markers 98 and 107.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4036 7408 4039 7403 4040 7397 4033 7395
4015 7401 4016 7414 4023 7411 4029 7409
FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE
$$
Deal2 follow-up statements
983
WGUS51 KPHI 070042
FFWPHI
NJC025-070300-
/O.EXT.KPHI.FF.W.0032.000000T0000Z-240807T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
842 PM EDT Tue Aug 6 2024
The National Weather Service in Mount Holly has extended the
* Flash Flood Warning for...
Eastern Monmouth County in central New Jersey...
* Until 1100 PM EDT.
* At 842 PM EDT, Doppler radar and automated rain gauges indicated
thunderstorms produced heavy rain across the warned area. Between
2 and 4 inches of rain have fallen. Another round of strong
thunderstorms with rainfall rates of 1 to 2 inches per hour is
expected. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
* Some locations that may experience flash flooding include...
Long Branch, Asbury Park, Tinton Falls, Red Bank, Elberon,
Allenwood, Eatontown, West Long Branch, Rumson, Little Silver,
Oceanport and Neptune City.
This includes the following highways...
Interstate 195 in New Jersey between mile markers 33 and 34.
Garden State Parkway between mile markers 98 and 106.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Be aware of your surroundings and do not drive on flooded roads.
&&
LAT...LON 4036 7408 4039 7403 4040 7397 4033 7395
4015 7401 4016 7414 4023 7411 4029 7409
FLASH FLOOD...RADAR AND GAUGE INDICATED
EXPECTED RAINFALL RATE...1-2 INCHES IN 1 HOUR
$$
MJL930
WGUS71 KPHI 070251
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
1051 PM EDT Tue Aug 6 2024
NJC025-070301-
/O.EXP.KPHI.FF.W.0032.000000T0000Z-240807T0300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Monmouth NJ-
1051 PM EDT Tue Aug 6 2024
...FLASH FLOOD WARNING WILL EXPIRE AT 11 PM EDT THIS EVENING FOR
EASTERN MONMOUTH COUNTY...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
Additional heavy rain could move into the region late tonight, and
this may prompt new warnings.
A Flood Watch remains in effect until 1200 PM EDT Wednesday for
portions of northern Delaware, New Jersey, and Pennsylvania.
&&
LAT...LON 4036 7408 4039 7403 4040 7397 4033 7395
4015 7401 4016 7414 4023 7411 4029 7409
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 9:37 AM EDT | Heat Advisory | PHI | Burlington, Camden, Gloucester, Hunterdon, Mercer, Middlesex and 5 more | 9 hr |
| Aug 6, 9:39 AM EDT | Small Craft Advisory | PHI | 10 hr | |
| Aug 6, 2:04 PM EDT | Special Marine Warning | PHI | 56 min | |
| Aug 6, 2:41 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 19 min |
| Aug 6, 2:55 PM EDT | Special Marine Warning | PHI | 65 min | |
| Aug 6, 3:15 PM EDT | Special Marine Warning | PHI | 60 min | |
| Aug 6, 3:18 PM EDT | Severe Thunderstorm Warning | PHI | Monmouth | 27 min |
| Aug 6, 3:21 PM EDT | Severe Thunderstorm Warning | PHI | Burlington | 23 min |
| Aug 6, 3:23 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth | 37 min |
| Aug 6, 3:45 PM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth | 2 hr |
| Aug 6, 3:49 PM EDT | Severe Thunderstorm Warning | PHI | Mercer, Middlesex, Monmouth | 56 min |
| Aug 6, 4:10 PM EDT | Special Marine Warning | PHI | 65 min | |
| Aug 6, 4:13 PM EDT | Flash Flood Warning | PHI | Mercer, Middlesex, Monmouth | 8 hr |
| Aug 6, 4:32 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Somerset | 43 min |
| Aug 6, 4:37 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 40 min |
| Aug 6, 4:56 PM EDT | Severe Thunderstorm Warning | PHI | Ocean | 49 min |
| Aug 6, 5:06 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Middlesex, Morris, Somerset | 54 min |
| Aug 6, 5:29 PM EDT | Flash Flood Warning | PHI | Hunterdon, Middlesex, Morris, Somerset | 6 hr |
| Aug 6, 5:36 PM EDT | Flash Flood Warning | PHI | Monmouth, Ocean | 8 hr |
| Aug 6, 6:37 PM EDT | Flash Flood Warning | PHI | Warren | 3 hr |
| Aug 6, 6:39 PM EDT | Flash Flood Warning | PHI | Burlington, Camden, Gloucester | 5 hr |
| Aug 6, 6:46 PM EDT | Flash Flood Warning | PHI | Morris, Somerset | 4 hr |
| Aug 6, 6:57 PM EDT | Flash Flood Warning | PHI | Warren | 3 hr |
| Aug 6, 7:04 PM EDT | Flash Flood Warning | PHI | Burlington | 5 hr |
| Aug 6, 7:24 PM EDT | Flash Flood Warning | PHI | Burlington, Mercer, Middlesex, Monmouth, Ocean | 5 hr |
Nearby
Flash Flood Warnings in New Jersey, 2024Every flash flood warning in 2024
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.