6 National Weather Service alerts are in force for Sussex County: 2 coastal flood warnings, a high wind watch, a rip current statement, a wind advisory and 1 other kind.
Checked Thu, Sep 24, 2026, 7:37 PM EDT. Times are Eastern Daylight Time.
Every watch, warning and advisory the National Weather Service has in force over Sussex County, Delaware. Open it for the live map, where it pans and zooms.
Map layer from NOAA National Weather Service. Boundaries from the Iowa Environmental Mesonet.
Alerts in force6
Every product in force for Sussex County, worst first, with its full text.
Coastal Flood Warning
Severe
Coastal Flood Warning issued September 24 at 12:57PM EDT until September 26 at 2:00AM EDT by NWS Mount Holly NJ
Issued Until 30 hr 23 min left
Areas Delaware Beaches, DE
Full text
* WHAT...For the Coastal Flood Warning, one to two feet of
inundation above ground level in low-lying areas near
shorelines and tidal waterways. For the High Surf Advisory,
large breaking waves of up to 12 feet in the surf zone. For
the High Rip Current Risk, dangerous rip currents.
* WHERE...Delaware Beaches.
* WHEN...For the Coastal Flood Warning, until 2 AM EDT Saturday.
For the High Surf Advisory, until 8 PM EDT Saturday. For the
High Rip Current Risk, through Saturday evening.
* IMPACTS...At this level, widespread roadway flooding occurs in
coastal and bayside communities and along inland tidal
waterways. Many roads become impassable. Some damage to
vulnerable structures may begin to occur. Dangerous swimming
and surfing conditions and localized beach erosion. Rip
currents can sweep even the best swimmers away from shore into
deeper water.
* ADDITIONAL DETAILS...Significant beach erosion is expected.
Breaching of sand dunes is possible. Moderate tidal flooding
could continue into the weekend. Cannot rule out major tidal
flooding impacts, especially around Rehoboth Bay and Indian
River.
What to do
A Coastal Flood Warning means that moderate or major tidal
flooding is occurring or imminent. Be prepared for rising water
levels and take appropriate action to protect life and property.
Follow the recommendations of local emergency management
officials.
Do not drive your vehicle through flood waters. The water may be
deeper than you think it is. You will be putting yourself in
danger and your vehicle may be damaged, leading to costly
repairs.
Visit the National Water Prediction Service at
https://water.noaa.gov/wfo/phi for additional water level and
flood impact information for your local tide gauge.
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
Always obey posted Beach Flags. If you enter the surf zone,
always have a floatation device with you and swim near a
lifeguard if possible. If caught in a rip current, relax and
float and do not swim against the current. If able, swim parallel
to the shoreline. If unable to escape, face the shore and call or
wave for help.
Coastal Flood Warning issued September 24 at 12:57PM EDT until September 26 at 2:00AM EDT by NWS Mount Holly NJ
Issued Until 30 hr 23 min left
Areas Kent, DE; Inland Sussex, DE
Full text
* WHAT...One to two feet of inundation above ground level in low-
lying areas near shorelines and tidal waterways.
* WHERE...Kent and Inland Sussex.
* WHEN...Until 2 AM EDT Saturday.
* IMPACTS...At this level, widespread roadway flooding occurs in
coastal and bayside communities and along inland tidal
waterways. Many roads become impassable. Some damage to
vulnerable structures may begin to occur.
* ADDITIONAL DETAILS...Moderate tidal flooding could continue
into the weekend. Cannot rule out major tidal flooding
impacts, especially around Rehoboth Bay and Indian River.
What to do
A Coastal Flood Warning means that moderate or major tidal
flooding is occurring or imminent. Be prepared for rising water
levels and take appropriate action to protect life and property.
Follow the recommendations of local emergency management
officials.
Do not drive your vehicle through flood waters. The water may be
deeper than you think it is. You will be putting yourself in
danger and your vehicle may be damaged, leading to costly
repairs.
Visit the National Water Prediction Service at
https://water.noaa.gov/wfo/phi for additional water level and
flood impact information for your local tide gauge.
High Wind Watch issued September 24 at 4:10PM EDT until September 26 at 6:00PM EDT by NWS Mount Holly NJ
Begins Until 46 hr 23 min left
Areas Delaware Beaches, DE; Eastern Monmouth, NJ; Atlantic Coastal Cape May, NJ; Coastal Atlantic, NJ; Coastal Ocean, NJ
Full text
* WHAT...For the Wind Advisory, northeast winds 25 to 35 mph with
gusts up to 45 mph. For the High Wind Watch, north winds 30 to 40
mph with gusts up to 60 mph possible.
* WHERE...In Delaware, Delaware Beaches County. In New Jersey,
Eastern Monmouth, Atlantic Coastal Cape May, Coastal Atlantic, and
Coastal Ocean Counties.
* WHEN...For the Wind Advisory, until 6 PM EDT Friday. For the High
Wind Watch, from Friday evening through Saturday afternoon.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles. Gusty winds will blow around
unsecured objects. Tree limbs could be blown down and a few power
outages may result.
What to do
Monitor the latest forecasts and warnings for updates.
Fasten loose objects or shelter objects in a safe location prior to
the onset of winds.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
Rip Current Statement issued September 24 at 12:57PM EDT until September 26 at 8:00PM EDT by NWS Mount Holly NJ
Issued Until 2 days left
Areas Delaware Beaches, DE
Full text
* WHAT...For the Coastal Flood Warning, one to two feet of
inundation above ground level in low-lying areas near
shorelines and tidal waterways. For the High Surf Advisory,
large breaking waves of up to 12 feet in the surf zone. For
the High Rip Current Risk, dangerous rip currents.
* WHERE...Delaware Beaches.
* WHEN...For the Coastal Flood Warning, until 2 AM EDT Saturday.
For the High Surf Advisory, until 8 PM EDT Saturday. For the
High Rip Current Risk, through Saturday evening.
* IMPACTS...At this level, widespread roadway flooding occurs in
coastal and bayside communities and along inland tidal
waterways. Many roads become impassable. Some damage to
vulnerable structures may begin to occur. Dangerous swimming
and surfing conditions and localized beach erosion. Rip
currents can sweep even the best swimmers away from shore into
deeper water.
* ADDITIONAL DETAILS...Significant beach erosion is expected.
Breaching of sand dunes is possible. Moderate tidal flooding
could continue into the weekend. Cannot rule out major tidal
flooding impacts, especially around Rehoboth Bay and Indian
River.
What to do
A Coastal Flood Warning means that moderate or major tidal
flooding is occurring or imminent. Be prepared for rising water
levels and take appropriate action to protect life and property.
Follow the recommendations of local emergency management
officials.
Do not drive your vehicle through flood waters. The water may be
deeper than you think it is. You will be putting yourself in
danger and your vehicle may be damaged, leading to costly
repairs.
Visit the National Water Prediction Service at
https://water.noaa.gov/wfo/phi for additional water level and
flood impact information for your local tide gauge.
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
Always obey posted Beach Flags. If you enter the surf zone,
always have a floatation device with you and swim near a
lifeguard if possible. If caught in a rip current, relax and
float and do not swim against the current. If able, swim parallel
to the shoreline. If unable to escape, face the shore and call or
wave for help.
Wind Advisory issued September 24 at 4:10PM EDT until September 25 at 6:00PM EDT by NWS Mount Holly NJ
Issued Until 22 hr 23 min left
Areas Delaware Beaches, DE; Eastern Monmouth, NJ; Atlantic Coastal Cape May, NJ; Coastal Atlantic, NJ; Coastal Ocean, NJ
Full text
* WHAT...For the Wind Advisory, northeast winds 25 to 35 mph with
gusts up to 45 mph. For the High Wind Watch, north winds 30 to 40
mph with gusts up to 60 mph possible.
* WHERE...In Delaware, Delaware Beaches County. In New Jersey,
Eastern Monmouth, Atlantic Coastal Cape May, Coastal Atlantic, and
Coastal Ocean Counties.
* WHEN...For the Wind Advisory, until 6 PM EDT Friday. For the High
Wind Watch, from Friday evening through Saturday afternoon.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles. Gusty winds will blow around
unsecured objects. Tree limbs could be blown down and a few power
outages may result.
What to do
Monitor the latest forecasts and warnings for updates.
Fasten loose objects or shelter objects in a safe location prior to
the onset of winds.
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.
Secure outdoor objects.
High Surf Advisory issued September 24 at 12:57PM EDT until September 26 at 8:00PM EDT by NWS Mount Holly NJ
Issued Until 2 days left
Areas Delaware Beaches, DE
Full text
* WHAT...For the Coastal Flood Warning, one to two feet of
inundation above ground level in low-lying areas near
shorelines and tidal waterways. For the High Surf Advisory,
large breaking waves of up to 12 feet in the surf zone. For
the High Rip Current Risk, dangerous rip currents.
* WHERE...Delaware Beaches.
* WHEN...For the Coastal Flood Warning, until 2 AM EDT Saturday.
For the High Surf Advisory, until 8 PM EDT Saturday. For the
High Rip Current Risk, through Saturday evening.
* IMPACTS...At this level, widespread roadway flooding occurs in
coastal and bayside communities and along inland tidal
waterways. Many roads become impassable. Some damage to
vulnerable structures may begin to occur. Dangerous swimming
and surfing conditions and localized beach erosion. Rip
currents can sweep even the best swimmers away from shore into
deeper water.
* ADDITIONAL DETAILS...Significant beach erosion is expected.
Breaching of sand dunes is possible. Moderate tidal flooding
could continue into the weekend. Cannot rule out major tidal
flooding impacts, especially around Rehoboth Bay and Indian
River.
What to do
A Coastal Flood Warning means that moderate or major tidal
flooding is occurring or imminent. Be prepared for rising water
levels and take appropriate action to protect life and property.
Follow the recommendations of local emergency management
officials.
Do not drive your vehicle through flood waters. The water may be
deeper than you think it is. You will be putting yourself in
danger and your vehicle may be damaged, leading to costly
repairs.
Visit the National Water Prediction Service at
https://water.noaa.gov/wfo/phi for additional water level and
flood impact information for your local tide gauge.
Inexperienced swimmers should remain out of the water due to
dangerous surf conditions.
Always obey posted Beach Flags. If you enter the surf zone,
always have a floatation device with you and swim near a
lifeguard if possible. If caught in a rip current, relax and
float and do not swim against the current. If able, swim parallel
to the shoreline. If unable to escape, face the shore and call or
wave for help.
In the past year the National Weather Service issued 155 alerts for Sussex County, including 40 severe thunderstorm warnings, 4 flash flood warnings, 4 freeze warnings and 3 coastal flood warnings.
From the Iowa Environmental Mesonet’s archive of NWS watches, warnings and advisories (VTEC), by the county’s own code and the forecast zones inside it. Each links to the alert's own page, with its text, map, radar and sounding.
The hazard is happening or about to. Act now: a tornado warning means take shelter, a flash flood warning means move to higher ground.
Watch
Conditions favor the hazard. Nothing is happening yet; have a plan and be ready to act if a warning follows.
Advisory
A hazard that is less serious than a warning but can still cause trouble, such as dense fog, heat or light ice.
Statement
Information about weather that does not yet meet a warning: a strong storm, a hydrologic update, or a special weather statement.
Severity (extreme, severe, moderate, minor) is the rating the issuing office gives each product. More on the difference: tornado watch vs. tornado warning. Alerts come from the National Weather Service; follow its instructions and your local officials.
Sources
Alerts from the National Weather Service's public feed, read afresh every minute, and matched to counties and zones by their UGC codes. Warnings from outside the United States come from each country's own meteorological service. Follow the issuing office's instructions and your local officials.
