New Castle County, DE Weather Alerts
Every National Weather Service alert issued for New Castle County, Delaware, pushed to your phone within moments — county code DEC003, forecast zone DEZ001. Free with StormCast.
Download on Google PlayHow the NWS identifies New Castle County
These are the identifiers the National Weather Service uses when it issues a warning here. StormCast watches DEC003 directly rather than matching on place names, which is why an alert arrives whether you are in Bear or anywhere else in the county.
NWS County Code
DEC003
Forecast Zone
DEZ001
Forecast Office
Mount Holly (PHI)
Radar Station
KDOX
Towns covered in New Castle County
An NWS alert for New Castle County applies to all 17 of these communities. You do not need a separate alert for each one.
River gauges in and around New Castle County
StormCast tracks 10 gauges near New Castle County. Set a flood-stage alert on any of them to get notified before the water reaches you.
- Christina River at Coochs Bridge
- Delaware River at Delaware City (IN MLLW)
- White Clay Creek near Newark
- Christina River at Newport (IN MLLW)
- Red Clay Creek at Stanton
- White Clay Creek at Newark
- Delaware Bay at Reedy Point (IN MLLW)
- Red Clay Creek at Wooddale
- Christina River at Wilmington (IN MLLW)
- Brandywine Creek at Wilmington
Current conditions
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Alert types issued for New Castle County
Tornado
Tornado Warning, Tornado Watch, Tornado Emergency and Severe Thunderstorm Warning.
How tornado alerts work →Flooding
Flash Flood Warning, Flood Watch, Flood Advisory and River Flood Warning.
How flood alerts work →Winter
Winter Storm Warning, Ice Storm Warning, Blizzard Warning and Winter Weather Advisory.
Winter warnings explained →Fire Weather
Red Flag Warning and Fire Weather Watch when conditions favor rapid fire spread.
Fire weather alerts →Heat & Cold
Excessive Heat Warning, Heat Advisory, Freeze Warning and Frost Advisory.
Frost & freeze alerts →New Castle County weather alert questions
Which NWS forecast zone is New Castle County in?
New Castle County, Delaware is NWS county code DEC003 and forecast zone DEZ001. Alerts for it are issued by the Mount Holly (PHI) Weather Forecast Office, and the nearest NEXRAD radar is KDOX.
Which towns in New Castle County are covered?
All of them. NWS alerts are issued at the county and zone level, so a warning for New Castle County covers every community inside it, including Bear, Claymont, Delaware City, Hockessin, Kirkwood, Middletown, Montchanin, New Castle, Newark, Odessa, Port Penn, Rockland, Saint Georges, Townsend, Wilmington, Winterthur and Yorklyn.
Are there river gauges in New Castle County?
Yes — StormCast monitors 10 river gauges in and around New Castle County, including Christina River at Coochs Bridge, Delaware River at Delaware City (IN MLLW), White Clay Creek near Newark. You can set a flood-stage alert on any of them and get a push notification when the water rises.
How fast are alerts for New Castle County delivered?
StormCast polls the NWS alert feed every 30 seconds. When a warning is issued for DEC003, the push notification goes out within moments — even with your screen off.