Flash Flood Warning 15, NWS Philadelphia/Mount Holly

Issued

Jun 26, 2023, 6:37 PM EDT (22:37 UTC)

Expired

Jun 26, 2023, 8:42 PM EDT

In force

2 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

None

Counties New Castle County, DE, Chester County, PA, Delaware County, PA

The Philadelphia radar (KDIX), 105 km from the middle of the area, began a volume at 22:38 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.

764 
WGUS51 KPHI 262237
FFWPHI
DEC003-PAC029-045-270245-
/O.NEW.KPHI.FF.W.0015.230626T2237Z-230627T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Mount Holly NJ
637 PM EDT Mon Jun 26 2023

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for...
  Northwestern New Castle County in northern Delaware...
  Southeastern Chester County in southeastern Pennsylvania...
  Southwestern Delaware County in southeastern Pennsylvania...

* Until 1045 PM EDT.

* At 637 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 up 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...
  Wilmington, Elsmere, Kennett Square, New Castle, Newport, 
  Greenville, Ashland, Stanton, Hockessin, Pike Creek, Talleyville, 
  and Wilmington Manor.

This includes the following highways...
	Interstate 95 in Delaware between mile markers 4 and 16.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Flooding is occurring or is imminent. Most flood related deaths 
occur in automobiles. Do not attempt to cross water covered bridges, 
dips, or low water crossings. Never try to cross a flowing stream, 
even a small one, on foot. To escape rising water find another route 
over higher ground.

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 3987 7570 3989 7569 3990 7551 3984 7552
      3964 7555 3963 7556 3964 7573

FLASH FLOOD...RADAR INDICATED

$$

MPS

410 
WGUS71 KPHI 262338
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
738 PM EDT Mon Jun 26 2023

DEC003-PAC029-045-270245-
/O.CON.KPHI.FF.W.0015.000000T0000Z-230627T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Chester PA-Delaware PA-
738 PM EDT Mon Jun 26 2023

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1045 PM EDT THIS 
EVENING FOR NORTHWESTERN NEW CASTLE, SOUTHEASTERN CHESTER, AND 
SOUTHWESTERN DELAWARE COUNTIES...

At 738 PM EDT, Doppler radar indicated thunderstorms produced 
between 1 and 2 inches of rain across the warned area. Rain has 
tapered off. 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...
  Wilmington, Elsmere, Kennett Square, New Castle, Newport, 
  Greenville, Ashland, Stanton, Hockessin, Pike Creek, Talleyville, 
  and Wilmington Manor.

This includes the following highways...
	Interstate 95 in Delaware between mile markers 4 and 16.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

&&

LAT...LON 3987 7570 3989 7569 3990 7551 3984 7552
      3964 7555 3963 7556 3964 7573

FLASH FLOOD...RADAR INDICATED

$$

MPS

168 
WGUS71 KPHI 270042
FFSPHI

Flash Flood Statement
National Weather Service Mount Holly NJ
842 PM EDT Mon Jun 26 2023

DEC003-PAC029-045-270052-
/O.CAN.KPHI.FF.W.0015.000000T0000Z-230627T0245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
New Castle DE-Chester PA-Delaware PA-
842 PM EDT Mon Jun 26 2023

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHWESTERN NEW CASTLE, 
SOUTHEASTERN CHESTER, AND SOUTHWESTERN DELAWARE COUNTIES...

The heavy rain has ended. Flooding is no longer expected to pose a 
threat.

A Flood Watch remains in effect until 1200 AM EDT for portions of 
New Jersey...and Pennsylvania.

LAT...LON 3987 7570 3989 7569 3990 7551 3984 7552
      3964 7555 3963 7556 3964 7573

$$

Staarmann

Flash Flood Warnings in Pennsylvania, 2023Flash Flood Warnings in Delaware, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.