Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Wilmington NC
236 AM EDT Tue Jul 21 2026
NCZ087-096-099-105>110-SCZ017-024-033-054-058-059-212300-
/O.NEW.KILM.HT.Y.0019.260721T1500Z-260721T2300Z/
Robeson-Bladen-Columbus-Inland Pender-Coastal Pender-Inland New
Hanover-Coastal New Hanover-Inland Brunswick-Coastal Brunswick-
Marlboro-Dillon-Marion-Coastal Horry-Central Horry-Northern Horry-
Including the cities of Long Beach, Whiteville, Lumberton, Socastee,
Seagate, Leland, Loris, Wilmington, Oak Island, Conway, Red Hill,
Surf City, Burgaw, Garden City, Ogden, Southport, Bladenboro, Myrtle
Beach, McColl, North Myrtle Beach, Aynor, Myrtle Grove,
Elizabethtown, Dillon, Chadbourn, Bennettsville, Tabor City, Marion,
Little River, Boiling Spring Lakes, Shallotte, Masonboro, Lake
Waccamaw, Sunset Beach, Mullins, and Carolina Beach
236 AM EDT Tue Jul 21 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM THIS MORNING TO 7 PM EDT THIS
EVENING...
* WHAT...Heat index values up to 107 expected.
* WHERE...Portions of southeast North Carolina and northeast South
Carolina.
* WHEN...From 11 AM this morning to 7 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
* ADDITIONAL DETAILS...The potential exists that showers and
thunderstorms developing along the sea breeze will produce enough
rain and cloud cover to prevent portions of the advisory area from
reaching a heat index of 105F or greater.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
ABW
Dense Smoke Advisory
URGENT - WEATHER MESSAGE
National Weather Service Charleston SC
317 AM EDT Tue Jul 21 2026
SCZ045-211400-
/O.CON.KCHS.SM.Y.0002.000000T0000Z-260721T1400Z/
Inland Berkeley-
Including the cities of Moncks Corner and Goose Creek
317 AM EDT Tue Jul 21 2026
...DENSE SMOKE ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS
MORNING...
* WHAT...Visibility 1 mile or less in dense smoke.
* WHERE...Inland Berkeley County.
* WHEN...Until 10 AM EDT this morning.
* IMPACTS...Thick smoke will make travel difficult and could cause
respiratory difficulty.
* ADDITIONAL DETAILS...The Horse Island Wildfire burning in the
Francis Marion National Forest near Shulerville is producing
widespread dense smoke with visibility 1 mile or less across
portions of northeast Berkeley County. Visibilities may lower to
1/4 mile or less overnight as winds diminish and the smoke lowers
closer to the ground. Heed any evacuation orders from local, state
or federal officials.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with respiratory illnesses should remain indoors to avoid
inhaling smoke.
&&
$$
ACD
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
316 AM EDT Tue Jul 21 2026
AMZ360-211530-
/O.CON.KCHS.SC.Y.0045.260721T1600Z-260723T0900Z/
Coastal waters from South Santee River to Edisto Beach SC out
20 NM-
316 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 5 AM
EDT THURSDAY...
* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas
3 to 6 ft expected.
* WHERE...South Santee River to Edisto Beach out 20 NM.
* WHEN...From noon today to 5 AM EDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
316 AM EDT Tue Jul 21 2026
AMZ362-211530-
/O.CON.KCHS.SC.Y.0045.260721T1600Z-260723T0900Z/
Coastal waters from Edisto Beach SC to Savannah GA out 20 NM-
316 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO 5 AM
EDT THURSDAY...
* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas
3 to 6 ft expected.
* WHERE...Edisto Beach to Savannah out 20 NM.
* WHEN...From noon today to 5 AM EDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
316 AM EDT Tue Jul 21 2026
AMZ364-211530-
/O.CON.KCHS.SC.Y.0045.260721T1800Z-260723T0400Z/
Coastal waters from Savannah GA to Altamaha Sound GA out 20 nm,
including Grays Reef National Marine Sanctuary-
316 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO MIDNIGHT EDT WEDNESDAY NIGHT...
* WHAT...South winds 15 to 25 kt and seas 3 to 5 ft expected.
* WHERE...Savannah to Altamaha Sound out 20 NM.
* WHEN...From 2 PM this afternoon to midnight EDT Wednesday
night.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
316 AM EDT Tue Jul 21 2026
AMZ384-211530-
/O.CON.KCHS.SC.Y.0045.260721T1800Z-260723T0400Z/
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
316 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO MIDNIGHT EDT WEDNESDAY NIGHT...
* WHAT...South winds 15 to 20 kt with gusts up to 25 kt and seas
4 to 5 ft expected.
* WHERE...Savannah to Altamaha Sound from 20 to 60 NM.
* WHEN...From 2 PM this afternoon to midnight EDT Wednesday
night.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Wilmington NC
242 AM EDT Tue Jul 21 2026
AMZ250-252-254-256-212000-
/O.CON.KILM.SC.Y.0032.260721T1500Z-260723T0200Z/
Coastal waters from Surf City to Cape Fear NC out 20 nm-
Coastal waters from Cape Fear NC to Little River Inlet SC out
20 NM-
Coastal waters from Little River Inlet to Murrells Inlet SC out
20 NM-
Coastal waters from Murrells Inlet to South Santee River SC out
20 NM-
242 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 10 PM EDT WEDNESDAY...
* WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and
seas 4 to 6 ft expected.
* WHERE...Southeast North Carolina and Northeast South Carolina
coastal waters out 20 NM.
* WHEN...From 11 AM this morning to 10 PM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
ABW
URGENT - MARINE WEATHER MESSAGE
National Weather Service Jacksonville FL
231 AM EDT Tue Jul 21 2026
AMZ450-452-454-470-472-474-220900-
/O.CON.KJAX.SC.Y.0031.260721T1800Z-260722T0900Z/
Coastal waters from Altamaha Sound to Fernandina Beach FL out
20 NM-
Coastal waters from Fernandina Beach to St. Augustine FL out
20 NM-
Coastal waters from St. Augustine to Flagler Beach FL out 20 NM-
Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to
60 NM-
Waters from Fernandina Beach to St. Augustine FL from 20 to 60 NM-
Waters from St. Augustine to Flagler Beach FL from 20 to 60 NM-
231 AM EDT Tue Jul 21 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS
AFTERNOON TO 5 AM EDT WEDNESDAY...
* WHAT...South winds around 20 kt with gusts up to 25 kt expected.
2
* WHERE...All Southeast Georgia and Northeast Florida coastal
waters from Altamaha Sound GA to Flagler Beach FL out to 60 NM.
* WHEN...From 2 PM this afternoon to 5 AM EDT Wednesday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Beach Hazards Statement
Coastal Hazard Message
National Weather Service Wilmington NC
240 AM EDT Tue Jul 21 2026
NCZ106-108-SCZ054-056-220000-
/O.CON.KILM.BH.S.0037.260721T1000Z-260722T0000Z/
Coastal Pender-Coastal New Hanover-Coastal Horry-
Coastal Georgetown-
240 AM EDT Tue Jul 21 2026
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 6 AM EDT THIS
MORNING THROUGH THIS EVENING...
* WHAT...Strong south to north longshore current. There is also a
Moderate Risk of rip currents expected.
* WHERE...In North Carolina, Coastal Pender and Coastal New
Hanover Counties. In South Carolina, Coastal Horry and Coastal
Georgetown Counties.
* WHEN...Today.
* IMPACTS...Longshore currents can sweep swimmers and surfers
into rip currents, piers, jetties, and other hazardous areas.
It may sweep swimmers off their feet, making it difficult to
return to shore.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Caution should be used when in or near the water. Check with
lifeguards before entering the ocean for possible hazards you may
be swept into.
&&
$$
LEW
