Flash Flood Warning 43, NWS Philadelphia/Mount Holly

Issued

Jul 9, 2023, 3:00 PM EDT (19:00 UTC)

Expired

Jul 9, 2023, 9:00 PM EDT

In force

6 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

None

Counties Morris County, NJ, Somerset County, NJ, Sussex County, NJ, Warren County, NJ

The Philadelphia radar (KDIX), 116 km from the middle of the area, began a volume at 19:03 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.

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

470 
WGUS51 KPHI 091900
FFWPHI
NJC027-035-037-041-100100-
/O.NEW.KPHI.FF.W.0043.230709T1900Z-230710T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
300 PM EDT Sun Jul 9 2023

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Morris County in northern New Jersey...
  North Central Somerset County in northern New Jersey...
  Central Sussex County in northwestern New Jersey...
  East Central Warren County in northwestern New Jersey...

* Until 900 PM EDT.

* At 300 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 3 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, Newton, Dover, Madison, Hopatcong, East Hanover, 
  Lincoln Park, Kinnelon, Hackettstown, Boonton, Butler, and Wharton.

This includes the following highways...
	Interstate 80 in New Jersey between mile markers 19 and 48.
	Interstate 287 in New Jersey between mile markers 29 and 53.

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 4111 7484 4127 7450 4120 7437 4109 7450
      4107 7449 4103 7450 4105 7446 4104 7443
      4102 7443 4103 7442 4099 7430 4094 7428
      4093 7429 4090 7427 4091 7433 4081 7434
      4080 7436 4065 7470 4083 7475 4089 7484

FLASH FLOOD...RADAR INDICATED

$$

Hoeflich

833 
WGUS71 KPHI 100101
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
901 PM EDT Sun Jul 9 2023

NJC027-035-037-041-100111-
/O.EXP.KPHI.FF.W.0043.000000T0000Z-230710T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Morris NJ-Somerset NJ-Sussex NJ-Warren NJ-
901 PM EDT Sun Jul 9 2023

...FLASH FLOOD WARNING HAS EXPIRED FOR MORRIS, NORTH CENTRAL 
SOMERSET, CENTRAL SUSSEX, AND EAST CENTRAL WARREN COUNTIES...

The heavy rain has ended. The Flash Flood Warning has been replaced 
by a new Areal Flood Warning.

A Flood Watch remains in effect until 600 AM EDT Monday for portions 
of central New Jersey...northern New Jersey...and northwest New 
Jersey.

LAT...LON 4111 7484 4127 7450 4120 7437 4109 7450
      4107 7449 4103 7450 4105 7446 4104 7443
      4102 7443 4103 7442 4099 7430 4094 7428
      4093 7429 4090 7427 4091 7433 4081 7434
      4080 7436 4065 7470 4083 7475 4089 7484

$$

Hoeflich

Flash Flood Warnings in New Jersey, 2023Every flash flood warning in 2023

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.