Alert archive / New Jersey / Flash Flood Warnings in 2025
Flash Flood Warning 61, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this flash flood warning at Jul 14, 2025, 5:25 PM EDT for Hunterdon County, Morris County, Warren County, New Jersey; Bucks County, Lehigh County, Northampton County, Pennsylvania. It was in force for 4 hr. 5 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
- Jul 14, 2025, 5:25 PM EDT (21:25 UTC)
- Expired
- Jul 14, 2025, 9:06 PM EDT
- In force
- 4 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- None
Counties Hunterdon County, NJ, Morris County, NJ, Warren County, NJ, Bucks County, PA, Lehigh County, PA, Northampton County, PA
The radar
The Philadelphia radar (KDIX), 105 km from the middle of the area, began a volume at 21:28 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 |
|---|---|---|---|
| Jul 14, 5:28 PM EDT | FLASH FLOOD | Pohatcong Twp, NJ | Reports of a creek overflowing its banks into roadways. |
| Jul 14, 5:30 PM EDT | RAIN 2.34 | 3 S Emmaus, PA | fell in 2 hours. |
| Jul 14, 6:18 PM EDT | FLASH FLOOD | Zionsville, PA | Significant road flooding at Dillingersville Rd. and Church View Rd. |
| Jul 14, 7:00 PM EDT | FLASH FLOOD | Emmaus, PA | Water flowing over roadway on Main Rd. E. |
| Jul 14, 7:40 PM EDT | FLASH FLOOD | Center Valley, PA | Water completely over area roadways. |
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, 9.4 hours before the alert went out and 202 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
- 1 J/kg
- Mixed-layer CIN
- -115 J/kg
- Mixed-layer LCL
- 728 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 44 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
890
WGUS51 KPHI 142125
FFWPHI
NJC019-027-041-PAC017-077-095-150130-
/O.NEW.KPHI.FF.W.0061.250714T2125Z-250715T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
525 PM EDT Mon Jul 14 2025
The National Weather Service in Mount Holly has issued a
* Flash Flood Warning for...
Southwestern Morris County in northern New Jersey...
Northern Hunterdon County in northwestern New Jersey...
Southern Warren County in northwestern New Jersey...
Southeastern Lehigh County in eastern Pennsylvania...
Southern Northampton County in eastern Pennsylvania...
Northwestern Bucks County in southeastern Pennsylvania...
* Until 930 PM EDT.
* At 525 PM EDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. 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.
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...
Allentown, Easton, Bethlehem, Forks, Emmaus, Northampton,
Hackettstown, Wilson, Washington, Hellertown, Nazareth and High
Bridge.
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.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4069 7550 4076 7518 4084 7482 4085 7477
4073 7475 4057 7511 4041 7547 4042 7548
4043 7549 4065 7567
FLASH FLOOD...RADAR INDICATED
$$
MPS2 follow-up statements
613
WGUS71 KPHI 142329
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
729 PM EDT Mon Jul 14 2025
NJC019-027-041-PAC017-077-095-150130-
/O.CON.KPHI.FF.W.0061.000000T0000Z-250715T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Morris NJ-Warren NJ-Bucks PA-Lehigh PA-Northampton
PA-
729 PM EDT Mon Jul 14 2025
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM EDT THIS
EVENING FOR SOUTHWESTERN MORRIS, NORTHERN HUNTERDON, SOUTHERN
WARREN, SOUTHEASTERN LEHIGH, SOUTHERN NORTHAMPTON AND NORTHWESTERN
BUCKS COUNTIES...
At 729 PM EDT, Doppler radar indicated thunderstorms producing heavy
rain across the warned area. Between 2 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 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...
Allentown, Easton, Bethlehem, Forks, Emmaus, Northampton,
Hackettstown, Wilson, Washington, Hellertown, Nazareth and High
Bridge.
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.
In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.
Flooding is occurring or is imminent. It is important to know where
you are relative to streams, rivers, or creeks which can become
killers in heavy rains. Campers and hikers should avoid streams or
creeks.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
&&
LAT...LON 4069 7550 4076 7518 4084 7482 4085 7477
4073 7475 4057 7511 4041 7547 4042 7548
4043 7549 4065 7567
FLASH FLOOD...RADAR INDICATED
$$
MPS294
WGUS71 KPHI 150106
FFSPHI
Flash Flood Statement
National Weather Service Mount Holly NJ
906 PM EDT Mon Jul 14 2025
NJC019-027-041-PAC017-077-095-150116-
/O.CAN.KPHI.FF.W.0061.000000T0000Z-250715T0130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hunterdon NJ-Morris NJ-Warren NJ-Bucks PA-Lehigh PA-Northampton
PA-
906 PM EDT Mon Jul 14 2025
...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHWESTERN MORRIS,
NORTHERN HUNTERDON, SOUTHERN WARREN, SOUTHEASTERN LEHIGH, SOUTHERN
NORTHAMPTON AND NORTHWESTERN BUCKS COUNTIES...
Flood waters have receded. The heavy rain has ended. Flooding is no
longer expected to pose a threat. Please continue to heed remaining
road closures.
A Flood Watch remains in effect until 200 AM EDT for portions of New
Jersey and Pennsylvania.
&&
LAT...LON 4069 7550 4076 7518 4084 7482 4085 7477
4073 7475 4057 7511 4041 7547 4042 7548
4043 7549 4065 7567
$$
MPSThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 14, 4:49 PM EDT | Flash Flood Warning | PHI | Morris, Warren | 3 hr |
| Jul 14, 5:36 PM EDT | Flash Flood Warning | PHI | Middlesex, Morris, Somerset | 4 hr |
| Jul 14, 5:47 PM EDT | Flash Flood Warning | PHI | Morris | 4 hr |
| Jul 14, 6:26 PM EDT | Flash Flood Warning | PHI | Hunterdon, Mercer, Middlesex, Somerset | 3 hr |
| Jul 14, 6:45 PM EDT | River Flood Warning | PHI | Morris, Somerset | 13 hr |
| Jul 14, 7:11 PM EDT | Flash Flood Warning | PHI | Middlesex, Monmouth | 4 hr |
| Jul 14, 7:16 PM EDT | Special Marine Warning | PHI | 59 min | |
| Jul 14, 7:45 PM EDT | Flash Flood Warning | PHI | Burlington, Camden | 2 hr |
| Jul 14, 3:37 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| Jul 14, 3:42 PM EDT | Severe Thunderstorm Warning | PHI | Lehigh, Northampton | 9 min |
| Jul 14, 5:32 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Chester, Lehigh, Montgomery | 6 hr |
Nearby
Flash Flood Warnings in New Jersey, 2025Flash Flood Warnings in Pennsylvania, 2025Every flash flood warning in 2025
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.