Alert archive / New Jersey / Flash Flood Warnings in 2024
Flash Flood Warning 8, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jun 22, 2024, 8:55 PM EDT for Hunterdon County, Warren County, New Jersey; Northampton County, Pennsylvania. It was in force for 4 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
- Jun 22, 2024, 8:55 PM EDT (00:55 UTC)
- Expired
- Jun 23, 2024, 1:00 AM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hunterdon County, NJ, Warren County, NJ, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 102 km from the middle of the area, began a volume at 00:58 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 |
|---|---|---|---|
| Jun 22, 9:25 PM EDT | RAIN 2.83 | 1 Ene Pohatcong Twp, NJ | Stewartsville NJWxNet station. |
| Jun 22, 9:30 PM EDT | FLASH FLOOD | 1 N Alpha, NJ | Several roads closed in the southern portion of Morris County. |
| Jun 22, 9:55 PM EDT | RAIN 3.02 | 1 Ene Pohatcong Twp, NJ | Updated previous rain report from 1 ENE Pohatcong Twp. Stewartsville NJWxNet station. |
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 00:00Z, 0.9 hours before the alert went out and 194 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
- 225 J/kg
- Mixed-layer CIN
- -133 J/kg
- Mixed-layer LCL
- 954 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 62 m²/s²
- 0-3 km storm-relative helicity
- 119 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.9
The text
As transmitted.
396
WGUS51 KPHI 230055
FFWPHI
NJC019-041-PAC095-230500-
/O.NEW.KPHI.FF.W.0008.240623T0055Z-240623T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
855 PM EDT Sat Jun 22 2024
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
West Central Hunterdon County in northwestern New Jersey...
Southwestern Warren County in northwestern New Jersey...
Southeastern Northampton County in eastern Pennsylvania...
* Until 100 AM EDT.
* At 855 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 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.
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...
Easton, Alpha, Bloomsbury and Phillipsburg.
This includes Interstate 78 in New Jersey between mile markers 0 and
7.
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.
&&
LAT...LON 4073 7516 4068 7505 4059 7514 4064 7524
FLASH FLOOD...RADAR INDICATED
$$
Kruzdlo2 follow-up statements
454
WGUS71 KPHI 230150
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
950 PM EDT Sat Jun 22 2024
NJC019-041-PAC095-230500-
/O.CON.KPHI.FF.W.0008.000000T0000Z-240623T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Warren NJ-Northampton PA-
950 PM EDT Sat Jun 22 2024
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1 AM EDT SUNDAY FOR
WEST CENTRAL HUNTERDON, SOUTHWESTERN WARREN AND SOUTHEASTERN
NORTHAMPTON COUNTIES...
At 950 PM EDT, Doppler radar and automated rain gauges indicated 3
and 4 inches of rain have fallen. Flash flooding is ongoing.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets, and underpasses as well as other
drainage and low lying areas.
Some locations that may experience flash flooding include...
Easton, Alpha, Bloomsbury and Phillipsburg.
This includes Interstate 78 in New Jersey between mile markers 0 and
7.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
&&
LAT...LON 4073 7516 4068 7505 4059 7514 4064 7524
FLASH FLOOD...RADAR AND GAUGE INDICATED
$$
Kruzdlo030 WGUS71 KPHI 230456 FFSPHI Flash Flood Statement National Weather Service Mount Holly NJ 1256 AM EDT Sun Jun 23 2024 NJC019-041-PAC095-230506- /O.EXP.KPHI.FF.W.0008.000000T0000Z-240623T0500Z/ /00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/ Hunterdon NJ-Warren NJ-Northampton PA- 1256 AM EDT Sun Jun 23 2024 ...FLASH FLOOD WARNING WILL EXPIRE AT 1 AM EDT EARLY THIS MORNING FOR WEST CENTRAL HUNTERDON, SOUTHWESTERN WARREN AND SOUTHEASTERN NORTHAMPTON COUNTIES... The heavy rain has ended. Flooding is no longer expected to pose a threat. Please continue to heed remaining road closures. && LAT...LON 4073 7516 4068 7505 4059 7514 4064 7524 $$ Hoeflich
The office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 22, 8:49 PM EDT | Severe Thunderstorm Warning | PHI | Hunterdon, Warren | 26 min |
| Jun 23, 3:16 AM EDT | Rip Current Statement | PHI | Atlantic, Cape May, Ocean | 17 hr |
| Jun 23, 4:48 PM EDT | Severe Thunderstorm Warning | PHI | Salem | 42 min |
| Jun 23, 5:22 PM EDT | Severe Thunderstorm Warning | PHI | Camden, Gloucester, Salem | 53 min |
| Jun 23, 5:52 PM EDT | Special Marine Warning | PHI | 53 min | |
| Jun 23, 5:56 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester | 49 min |
| Jun 23, 6:03 PM EDT | Severe Thunderstorm Warning | PHI | Gloucester, Salem | 42 min |
| Jun 23, 6:32 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Mercer, Middlesex, Monmouth and 1 more | 58 min |
| Jun 23, 6:35 PM EDT | Special Marine Warning | PHI | 115 min | |
| Jun 23, 6:36 PM EDT | Special Marine Warning | PHI | 114 min | |
| Jun 23, 6:39 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Salem | 51 min |
| Jun 23, 7:13 PM EDT | Severe Thunderstorm Warning | PHI | Atlantic, Burlington, Camden, Gloucester, Ocean | 62 min |
| Jun 23, 7:14 PM EDT | Special Marine Warning | PHI | 2 hr | |
| Jun 23, 7:24 PM EDT | Severe Thunderstorm Warning | PHI | Burlington, Camden, Gloucester, Salem | 51 min |
Nearby
Flash Flood Warnings in New Jersey, 2024Flash Flood Warnings in Pennsylvania, 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.