Flash Flood Warning 64, NWS Philadelphia/Mount Holly

Issued

Jul 14, 2025, 5:47 PM EDT (21:47 UTC)

Expired

Jul 14, 2025, 9:32 PM EDT

In force

4 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

None

County Morris County, NJ

The Philadelphia radar (KDIX), 112 km from the middle of the area, began a volume at 21:49 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.

505 
WGUS51 KPHI 142147
FFWPHI
NJC027-150200-
/O.NEW.KPHI.FF.W.0064.250714T2147Z-250715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
547 PM EDT Mon Jul 14 2025

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Northeastern Morris County in northern New Jersey...

* Until 1000 PM EDT.

* At 547 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 1.5 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...
  Morristown, East Hanover, Lincoln Park, Kinnelon, Boonton, Butler, 
  Rockaway, Morris Plains, Mountain Lakes, Riverdale, Parsippany and 
  Lake Telemark.

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.

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 4106 7453 4106 7450 4103 7450 4105 7445
      4104 7443 4102 7443 4103 7442 4100 7430
      4098 7430 4097 7428 4093 7429 4091 7427
      4090 7428 4091 7433 4087 7434 4086 7432
      4081 7434 4079 7437 4077 7451

FLASH FLOOD...RADAR INDICATED

$$

MPS

345 
WGUS71 KPHI 142332
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
732 PM EDT Mon Jul 14 2025

NJC027-150200-
/O.CON.KPHI.FF.W.0064.000000T0000Z-250715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-
732 PM EDT Mon Jul 14 2025

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 10 PM EDT THIS 
EVENING FOR NORTHEASTERN MORRIS COUNTY...

At 732 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 of 0.5 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.

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...
  Morristown, East Hanover, Lincoln Park, Kinnelon, Boonton, Butler, 
  Rockaway, Morris Plains, Mountain Lakes, Riverdale, Parsippany and 
  Lake Telemark.

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.

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 4106 7453 4106 7450 4103 7450 4105 7445
      4104 7443 4102 7443 4103 7442 4100 7430
      4098 7430 4097 7428 4093 7429 4091 7427
      4090 7428 4091 7433 4087 7434 4086 7432
      4081 7434 4079 7437 4077 7451

FLASH FLOOD...RADAR INDICATED

$$

MPS

905 
WGUS71 KPHI 150132
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
932 PM EDT Mon Jul 14 2025

NJC027-150142-
/O.CAN.KPHI.FF.W.0064.000000T0000Z-250715T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-
932 PM EDT Mon Jul 14 2025

...FLASH FLOOD WARNING FOR NORTHEASTERN MORRIS COUNTY HAS BEEN 
REPLACED WITH A FLOOD WARNING...

Heavy rain has ended, but flooding continues. 

&&

LAT...LON 4106 7453 4106 7450 4103 7450 4105 7445
      4104 7443 4102 7443 4103 7442 4100 7430
      4098 7430 4097 7428 4093 7429 4091 7427
      4090 7428 4091 7433 4087 7434 4086 7432
      4081 7434 4079 7437 4077 7451

$$

MPS

Flash Flood Warnings in New Jersey, 2025Every flash flood warning in 2025

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.