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United States Warnings, Watches, And Advisories Dense Fog Advisory
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Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:26 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Upton NY
DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING TO 6 PM EDT THIS EVENING
What:
For the Dense Fog Advisory, dense fog will reduce
visibility to 1 NM or less. For the Small Craft Advisory,
northwest winds 10 to 20 kt with gusts up to 25 kt.
For the Dense Fog Advisory, dense fog will reduce
visibility to 1 NM or less. For the Small Craft Advisory,
northwest winds 10 to 20 kt with gusts up to 25 kt.
Where:
Long Island Sound, New York Harbor, Peconic and
Gardiners Bays, and South Shore Bays from Jones Inlet through
Shinnecock Bay.
Long Island Sound, New York Harbor, Peconic and
Gardiners Bays, and South Shore Bays from Jones Inlet through
Shinnecock Bay.
When:
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 11 AM this morning
to 6 PM EDT this evening.
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 11 AM this morning
to 6 PM EDT this evening.
Impacts:
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Instructions:
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River
Long Island Sound East of the Mouth of the Connecticut River
Long Island Sound West of New Haven CT/Port Jefferson NY
New York Harbor
Peconic and Gardiners Bays
South Shore Bays from Jones Inlet through Shinnecock Bay
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:26 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Upton NY
DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 11 PM EDT THIS EVENING
What:
For the Dense Fog Advisory, dense fog will reduce
visibility to 1 NM or less. For the Small Craft Advisory, west
winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 feet
expected.
For the Dense Fog Advisory, dense fog will reduce
visibility to 1 NM or less. For the Small Craft Advisory, west
winds 15 to 25 kt with gusts up to 30 kt and seas 3 to 5 feet
expected.
Where:
Moriches Inlet NY to Montauk Point NY out 20 NM.
Moriches Inlet NY to Montauk Point NY out 20 NM.
When:
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 11 PM EDT this evening.
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 11 PM EDT this evening.
Impacts:
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Instructions:
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Moriches Inlet NY to Montauk Point NY out 20 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:26 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Upton NY
DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING
What:
Dense fog will reduce visibility to 1 NM or less.
Dense fog will reduce visibility to 1 NM or less.
Where:
Waters from Sandy Hook NJ to Montauk Point NY from 20
to 60 nm.
Waters from Sandy Hook NJ to Montauk Point NY from 20
to 60 nm.
When:
Until 9 AM EDT this morning.
Until 9 AM EDT this morning.
Impacts:
Low visibility will make navigation difficult.
Low visibility will make navigation difficult.
Instructions:
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 NM
Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 NM
Waters from Sandy Hook NJ to Fire Island Inlet NY out 20 to 60 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:26 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Upton NY
DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING
What:
For the Dense Fog Advisory, dense fog will reduce
visibility to 1 NM or less. For the Small Craft Advisory,
northwest winds 10 to 20 kt with gusts up to 25 kt and seas 3 to
5 feet expected.
For the Dense Fog Advisory, dense fog will reduce
visibility to 1 NM or less. For the Small Craft Advisory,
northwest winds 10 to 20 kt with gusts up to 25 kt and seas 3 to
5 feet expected.
Where:
Sandy Hook NJ to Moriches Inlet NY out 20 nm.
Sandy Hook NJ to Moriches Inlet NY out 20 nm.
When:
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 6 PM EDT this evening.
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 6 PM EDT this evening.
Impacts:
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Instructions:
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Fire Island Inlet NY to Moriches Inlet NY out 20 NM
Sandy Hook NJ to Fire Island Inlet NY out 20 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:19 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Mount Holly NJ
DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING
What:
Dense fog will reduce visibility to as low as 1/2 NM.
Dense fog will reduce visibility to as low as 1/2 NM.
Where:
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ
from 20 to 60 NM, Waters from Little Egg Inlet NJ to Great Egg
Inlet NJ from 20 to 60 NM and Waters from Great Egg Inlet NJ
to Cape May NJ from 20 to 60 NM.
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ
from 20 to 60 NM, Waters from Little Egg Inlet NJ to Great Egg
Inlet NJ from 20 to 60 NM and Waters from Great Egg Inlet NJ
to Cape May NJ from 20 to 60 NM.
When:
Until 9 AM EDT this morning.
Until 9 AM EDT this morning.
Impacts:
Low visibility will make navigation difficult.
Low visibility will make navigation difficult.
Instructions:
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Waters from Manasquan Inlet NJ to Little Egg Inlet NJ from 20 to 60 NM
Waters from Little Egg Inlet NJ to Great Egg Inlet NJ from 20 to 60 NM
Waters from Great Egg Inlet NJ to Cape May NJ from 20 to 60 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:19 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Mount Holly NJ
DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING
What:
Dense fog will reduce visibility to as low as 1/2 NM.
Dense fog will reduce visibility to as low as 1/2 NM.
Where:
Waters from Sandy Hook NJ to Manasquan Inlet NJ from
20 to 40 NM.
Waters from Sandy Hook NJ to Manasquan Inlet NJ from
20 to 40 NM.
When:
Until 9 AM EDT this morning.
Until 9 AM EDT this morning.
Impacts:
Low visibility will make navigation difficult.
Low visibility will make navigation difficult.
Instructions:
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Waters from Sandy Hook NJ to Manasquan Inlet NJ from 20 to 40 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:19 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Mount Holly NJ
DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...GALE WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 5 PM EDT THIS AFTERNOON
What:
For the Dense Fog Advisory, dense fog will reduce
visibility to as low as 1/2 NM. For the Gale Warning, northwest
winds 20 to 30 kt with gusts up to 35 kt and seas 3 to 6 ft
expected.
For the Dense Fog Advisory, dense fog will reduce
visibility to as low as 1/2 NM. For the Gale Warning, northwest
winds 20 to 30 kt with gusts up to 35 kt and seas 3 to 6 ft
expected.
Where:
In Delaware Bay Waters, Delaware Bay waters south of
East Point NJ to Slaughter Beach DE. In Atlantic coastal waters,
Coastal waters from Great Egg Inlet NJ to Fenwick Island DE out
20 NM and Waters from Cape May NJ to Fenwick Island DE from 20
to 60 NM.
In Delaware Bay Waters, Delaware Bay waters south of
East Point NJ to Slaughter Beach DE. In Atlantic coastal waters,
Coastal waters from Great Egg Inlet NJ to Fenwick Island DE out
20 NM and Waters from Cape May NJ to Fenwick Island DE from 20
to 60 NM.
When:
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Gale Warning, from 8 AM this morning to 5 PM
EDT this afternoon.
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Gale Warning, from 8 AM this morning to 5 PM
EDT this afternoon.
Impacts:
Strong winds will cause hazardous seas which could
capsize or damage vessels and reduce visibility. Low
visibility will make navigation difficult.
Strong winds will cause hazardous seas which could
capsize or damage vessels and reduce visibility. Low
visibility will make navigation difficult.
Additional Details:
The strongest winds are expected in the
vicinity of the mouth of the Delaware Bay.
The strongest winds are expected in the
vicinity of the mouth of the Delaware Bay.
Instructions:
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Delaware Bay waters south of East Point NJ to Slaughter Beach DE
Coastal waters from Great Egg Inlet to Cape May NJ out 20 NM
Coastal waters from Cape May NJ to Cape Henlopen DE out 20 NM
Coastal waters from Cape Henlopen to Fenwick Island DE out 20 NM
Waters from Cape May NJ to Fenwick Island DE from 20 to 60 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:19 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Mount Holly NJ
DENSE FOG ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING
What:
For the Dense Fog Advisory, dense fog will reduce
visibility to as low as 1/2 NM. For the Small Craft Advisory,
northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to
5 ft expected.
For the Dense Fog Advisory, dense fog will reduce
visibility to as low as 1/2 NM. For the Small Craft Advisory,
northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 to
5 ft expected.
Where:
Coastal waters from Manasquan Inlet to Great Egg Inlet
NJ out 20 NM.
Coastal waters from Manasquan Inlet to Great Egg Inlet
NJ out 20 NM.
When:
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 6 PM EDT this evening.
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 6 PM EDT this evening.
Impacts:
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Instructions:
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 NM
Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 4:19 AM EDT – Sunday, Apr 19 2026 9:00 AM EDT
Issued by NWS Mount Holly NJ
DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT THIS MORNING... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING TO 6 PM EDT THIS EVENING
What:
For the Dense Fog Advisory, dense fog will reduce
visibility to as low as 1/2 NM. For the Small Craft Advisory,
northwest winds 10 to 20 kt with gusts up to 30 kt expected.
For the Dense Fog Advisory, dense fog will reduce
visibility to as low as 1/2 NM. For the Small Craft Advisory,
northwest winds 10 to 20 kt with gusts up to 30 kt expected.
Where:
Coastal waters from Sandy Hook to Manasquan Inlet NJ
out 20 NM.
Coastal waters from Sandy Hook to Manasquan Inlet NJ
out 20 NM.
When:
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 6 PM EDT this evening.
For the Dense Fog Advisory, until 9 AM EDT this
morning. For the Small Craft Advisory, from 8 AM this morning
to 6 PM EDT this evening.
Impacts:
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Conditions will be hazardous to small craft. Low
visibility will make navigation difficult.
Instructions:
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
If you must navigate, proceed with caution. Use proper fog
signals. Make sure all running lights are on. Remember to use
your radar and compass.
Areas Impacted:
Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 NM
Dense Fog Advisory
In effect:
Sunday, Apr 19 2026 3:08 AM CDT – Sunday, Apr 19 2026 9:00 AM CDT
Issued by NWS Memphis TN
DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT THIS MORNING
What:
Visibility one quarter mile or less in dense fog.
Visibility one quarter mile or less in dense fog.
Where:
A portion of West Tennessee.
A portion of West Tennessee.
When:
Until 9 AM CDT this morning.
Until 9 AM CDT this morning.
Impacts:
Low visibility could make driving conditions hazardous.
Low visibility could make driving conditions hazardous.
Instructions:
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
Areas Impacted:
Lake
Obion
Weakley
Henry
Dyer
Gibson
Carroll
Benton
Lauderdale
Tipton
Haywood
Crockett
Madison
Chester
Henderson
Decatur
Shelby
Fayette
Hardeman
McNairy
Hardin