New Castle County, DE

Alerts

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Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.

In effect from Tuesday 07/21 6:05 PM EDT – Tuesday 07/21 8:45 PM EDT

Issued by NWS Mount Holly NJ

At 605 PM EDT, New Castle County Emergency Managers reported flooding in Newark and Wilmington. Vehicles were stranded and water rescues were ongoing.

HAZARD...Life threatening flash flooding caused by thunderstorms.

SOURCE...Radar.

IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets, and underpasses.

Some locations that may experience flash flooding include... Wilmington, Newark, Pennsville, Carneys Point, Elsmere, New Castle, Penns Grove, Newport, Arden, Stanton, Wilmington Manor and Greenville.

This includes Interstate 95 in Delaware between mile markers 1 and 23.

What to Do

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


Areas Impacted

  • New Castle, DE

Tips to Stay Safe

A Flash Flood Warning means that dangerous flooding is expected or already happening. Flash flooding can develop in hours or minutes, so take protective action now.  

  • If you are in a low-lying or flood prone area, move to higher ground immediately.  
  • Stay off bridges over fast-moving water, and away from storm drains, culverts, creeks and streams. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

In effect from Tuesday 07/21 6:53 PM EDT – Tuesday 07/21 11:00 PM EDT

Issued by NWS Mount Holly NJ

FFWPHI

The National Weather Service in Mount Holly has issued a

* Flash Flood Warning for... Northwestern Kent County in central Delaware... Southwestern New Castle County in northern Delaware...

* Until 1100 PM EDT.

* At 653 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 2.5 inches of rain have fallen. The expected rainfall rate is 0.5 to 1.5 inches in 1 hour. 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... Middletown, Smyrna, Clayton, Delaware City, Mount Pleasant, Green Spring, Port Penn, Saint Georges, Delaney Corner, Bear, Glasgow and Townsend.

What to Do

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


Areas Impacted

  • Kent, DE
  • New Castle, DE

Tips to Stay Safe

A Flash Flood Warning means that dangerous flooding is expected or already happening. Flash flooding can develop in hours or minutes, so take protective action now.  

  • If you are in a low-lying or flood prone area, move to higher ground immediately.  
  • Stay off bridges over fast-moving water, and away from storm drains, culverts, creeks and streams. 
  • Never walk, swim, or drive through flood waters or flooded roads. 
  • If you are trapped in a building, move to the highest floor and call 911. Go to the roof only if necessary. 
  • If your vehicle is trapped in rapidly moving water, stay inside. If water is rising inside the vehicle, move to the roof and signal for help.

In effect from Tuesday 07/21 6:36 PM EDT – Tuesday 07/21 9:00 PM EDT

Issued by NWS Mount Holly NJ

TORNADO WATCH 507 REMAINS VALID UNTIL 9 PM EDT THIS EVENING FOR THE FOLLOWING AREAS

IN DELAWARE THIS WATCH INCLUDES 1 COUNTY

IN NORTHERN DELAWARE

NEW CASTLE

IN NEW JERSEY THIS WATCH INCLUDES 8 COUNTIES

IN SOUTHERN NEW JERSEY

ATLANTIC BURLINGTON CAMDEN CAPE MAY CUMBERLAND GLOUCESTER OCEAN SALEM

THIS INCLUDES THE CITIES OF ATLANTIC CITY, CAMDEN, CHERRY HILL, DEPTFORD, GLASSBORO, HAMMONTON, MILLVILLE, MOORESTOWN, MOUNT HOLLY, OCEAN CITY, PENNSVILLE, TOMS RIVER, AND WILMINGTON.


Areas Impacted

  • New Castle, DE
  • Atlantic, NJ
  • Burlington, NJ
  • Camden, NJ
  • Cape May, NJ
  • Cumberland, NJ
  • Gloucester, NJ
  • Ocean, NJ
  • Salem, NJ

In effect from Tuesday 07/21 4:46 PM EDT – Wednesday 07/22 2:00 AM EDT

Issued by NWS Mount Holly NJ

What

Flash flooding caused by excessive rainfall continues to be possible.

Where

Portions of northern Delaware, including the following area, New Castle, New Jersey, including the following areas, Camden, Eastern Monmouth, Gloucester, Hunterdon, Mercer, Middlesex, Morris, Northwestern Burlington, Somerset and Western Monmouth, and southeast Pennsylvania, including the following areas, Delaware, Eastern Chester, Eastern Montgomery, Lower Bucks, Philadelphia, Upper Bucks, Western Chester and Western Montgomery.

When

Until 2 AM EDT Wednesday.

Impacts

Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas.

Additional Details

- Showers and thunderstorms will continue into tonight with the most widespread activity occurring through this evening. Some heavy showers and thunderstorms will produce torrential rainfall, with 2 to 3 inches of rain per hour possible. The excessive rainfall within a short period of time, especially in urban areas, could lead to flash flooding. - http://www.weather.gov/safety/flood

What to Do

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.


Areas Impacted

  • New Castle
  • Morris
  • Hunterdon
  • Somerset
  • Middlesex
  • Western Monmouth
  • Eastern Monmouth
  • Mercer
  • Gloucester
  • Camden
  • Northwestern Burlington
  • Delaware
  • Philadelphia
  • Western Chester
  • Eastern Chester
  • Western Montgomery
  • Eastern Montgomery
  • Upper Bucks
  • Lower Bucks

Tips to Stay Safe

A Flood Watch means the area may experience a dangerous flooding event, and being prepared may save lives and property. 

  • Be aware of low-lying areas along your travel routes that are most likely to flood. 
  • Check your home’s emergency supplies, and make sure all members of the household know your emergency plan
  • Stay tuned for local weather updates on the situation as it develops.

If a Flood Warning is issued, it means that dangerous flooding is expected or already happening. 

  • Never walk, swim, or drive through flood waters or flooded roads. 
  • Stay away from areas where water levels can rise rapidly, like storm drains, culverts, creeks and streams. 

If your home is likely to flood, or if authorities tell you to evacuate, do so immediately and move to higher ground. 

Briefings

No recent briefing available

From the Forecaster

Today's Severe Thunderstorm Risk

Created by the NWS Mount Holly WFO

Showers and thunderstorms will increase through this evening. Some thunderstorms will be capable of producing damaging winds, a few tornadoes and large hail.

The graphic describes the severe weather risks for today.

Seven-day Weather Risk Overview

The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.

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Weather Forecasting Office

Mount Holly Forecast Office
Phone: 555-555-5555

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