Marine Weather and Tide Forecast for Myrtle Beach, SC
July 3, 2024 6:31 AM EDT (10:31 UTC) Change Location
 | Sunrise 6:08 AM Sunset 8:31 PM Moonrise 2:39 AM Moonset 5:51 PM |
AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 419 Am Edt Wed Jul 3 2024
Through 7 am - E winds 10 kt. Seas 2 to 3 ft. Wave detail: E 3 ft at 5 seconds and se 2 ft at 8 seconds.
Today - E winds 10 to 15 kt. Seas 2 to 3 ft. Wave detail: E 3 ft at 7 seconds and se 1 ft at 17 seconds.
Tonight - E winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: E 3 ft at 7 seconds and se 1 ft at 16 seconds.
Thu - SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: E 2 ft at 6 seconds and se 2 ft at 9 seconds.
Thu night - S winds 5 to 10 kt. Seas 2 to 3 ft. Wave detail: se 3 ft at 12 seconds and se 2 ft at 7 seconds.
Fri - SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave detail: se 3 ft at 11 seconds.
Fri night - S winds 10 to 15 kt. Gusts up to 20 kt in the evening. Seas 2 to 3 ft. Wave detail: S 3 ft at 7 seconds and E 1 ft at 9 seconds.
Sat - S winds 10 to 15 kt. Seas 2 to 3 ft.
Sat night - S winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms after midnight.
Sun - S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Sun night - S winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
winds and seas higher in and near tstms.
winds and seas higher in and near tstms.
AMZ200 419 Am Edt Wed Jul 3 2024
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles - A cold front offshore will maintain a slight chance of showers today. High pressure brings drier weather through the rest of the work week. Better rain chances are expected by the weekend.
Area Discussion for - Wilmington, NC
HIDE HelpNOTE: mouseover dotted underlined text for definition
FXUS62 KILM 030734 AFDILM
Area Forecast Discussion National Weather Service Wilmington NC 334 AM EDT Wed Jul 3 2024
SYNOPSIS
High pressure will move off the East Coast, allowing warmer and more humid air to return to the Carolinas later this week.
Daytime heat indices could exceed 105 degrees beginning Friday.
Thunderstorm chances will increase this weekend as a cold front stalls inland from the coast.
NEAR TERM /THROUGH TONIGHT/
Latest surface analysis shows an old frontal boundary still well to the south of the area, that still extends from near Sapelo Island, GA to offshore. A stout anticyclone sits over near ArkLaTex currently, and will slowly move eastward today over the Deep South.
Finally, surface high Seasonable temperatures for July are expected on Wednesday as high pressure builds in from the north. As the high moves offshore later this week, increasing heat and humidity could lead to elevated heat indices developing by the weekend and into early next week. Diurnal coverage of showers and thunderstorms begin to increase this weekend.pressure centered just offshore of New England carries a broad influence all up and down the eastern seaboard.
This high pressure will control the local forecast through tonight, keeping a mostly dry regime. Some onshore movement likely keeps some stratocu near the coast this morning, and that may even allow an isolated shower or sprinkle to dot some of the coastal areas, particularly in Georgetown County. This cloud cover will keep highs in the upper 80s in the coastal regions. Meanwhile, inland areas will be a bit warmer today, with highs reaching the lower 90s. Heat indices thankfully avoid the triple digits today (don't you worry, it's coming...hope your AC is ready).
Tonight will see more widespread lows in the lower 70s. Some of the typical cool spots will dip down into the low-to-mid 60s.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/
The 500 mb subtropical ridge should be centered across Alabama on Thursday, moving to the Florida Panhandle on Friday. This continues a trend in the models that was noted yesterday moving the center of the ridge southward. While it's a subtle change, it does open the door for perhaps more coverage of thunderstorms on Friday.
Surface high pressure centered off the Mid Atlantic coast on Thursday should move farther offshore Friday. Southerly wind behind this departing high should lead to rising temperatures and dewpoints across the Carolinas. Thursday's inland highs should reach the mid 90s, with upper 90s expected on Friday as 850 mb temps rise to +21C. This is just above the 90th percentile value for early July. Combined with dewpoints poking into the mid 70s by Friday, it's likely we'll have heat indices high enough (105-109 F) to warrant a Heat Advisory for inland locations. South to southeast winds should keep coastal high temps both days ranging from the upper 80s to lower 90s.
Ridging should be strong enough Thursday to keep the atmosphere capped and stable. By Friday, the weakening ridge and continued increases in low level temperatures and dewpoints could allow some afternoon storms to pop inland. Friday's forecast PoPs range from 10 percent on the coast to around 30 percent west of I-95.
LONG TERM /SATURDAY THROUGH TUESDAY/
A cold front should cross the North Carolina mountains on Saturday, likely stalling across the central portions of the Carolinas through Sunday. The upper level ridge should remain centered just to our south, but enough southwesterly flow should occur between the ridge axis and a trough over the Great Lakes to advect any inland convection that develops along the front toward our area. Saturday's forecast PoPs range from 20 percent on the coast to 50 percent west of I-95. By Sunday convective potential grows larger near the coast from a combination of morning marine convection drifting onshore, plus afternoon inland storms moving eastward. Given large and growing 30 and 60 day rainfall deficits across the area, any rain is going to be good news.
Hot and humid conditions will persist with Saturday likely seeing a continued need for a Heat Advisory. Actual inland highs in the upper 90s will feel more like 105 when factoring in humidity. By Sunday temperatures may cool a few degrees given an increase in clouds and thunderstorm coverage.
Increased forecast uncertainty creeps in for Monday and Tuesday as models diverge with details of an upper trough digging across the northern Plains and Great Lakes, plus a cut off upper low that may retrograde between Bermuda and the Carolinas. The upper ridge just to south appears it will remain the dominant weather feature for us, but the old decaying front stalled inland and daily seabreezes/landbreezes should still be enough for scattered showers and thunderstorms. Inland highs poking back into the mid 90s plus humidity could approach Heat Advisory criteria again.
AVIATION /06Z WEDNESDAY THROUGH SUNDAY/
Predominant VFR expected through the 06Z TAF period. Onshore flow and low chances of showers have brought in some isolated MVFR ceilings near KCRE/KMYR. The coverage is sporadic, but if the ceilings do make it to these terminals, it will be brief in nature. Closer to 12Z, there's another chance for MVFR ceilings at all coastal terminals, but guidance is suggesting 3-4.5 kft at lowest. Meanwhile, inland terminals will see light and variable winds with clear skies, no fog expected at this time.
Any restrictions should clear up by Wednesday morning with VFR expected through the rest of the period.
Extended Outlook...VFR should dominate through the end of the work week. Slight chance of flight restrictions this weekend as chances for convection return.
MARINE
Through Tonight...E to ESE winds dominate at 10-15kts today, decreasing to 5-10kts by tonight. Seas come in at 1-3ft. Biggest story here is that swells from Major Hurricane Beryl arrive today.
Look for long period 1ft southeasterly swells at 15-17 seconds.
Other swell sets include a 2-3ft set out of the ENE at 5-7 seconds.
Thursday through Sunday Night...High pressure centered just off the Mid Atlantic coast Thursday will gradually move farther out to sea Friday through the weekend. This will provide a light generally southerly wind across the Carolinas. A cold front approaching the region from the west likely won't make it down to the coastline, stalling across the interior portions of the Carolinas Saturday and Sunday.
There should be an increasing potential for showers and thunderstorms across the coastal and offshore waters Saturday and Sunday. These won't be directly linked to afternoon and evening thunderstorms inland and should have coverage peaks during the overnight and morning hours, opposite of what we usually see inland.
Sea heights around 3 feet are expected through the period, enhanced Thursday and Thursday night by long period southeast swell that was produced several days ago by Hurricane Beryl. Now that Beryl is south of Hispaniola, this swell should end here Friday.
ILM WATCHES/WARNINGS/ADVISORIES
NC...None.
SC...None.
MARINE...None.
Area Forecast Discussion National Weather Service Wilmington NC 334 AM EDT Wed Jul 3 2024
SYNOPSIS
High pressure will move off the East Coast, allowing warmer and more humid air to return to the Carolinas later this week.
Daytime heat indices could exceed 105 degrees beginning Friday.
Thunderstorm chances will increase this weekend as a cold front stalls inland from the coast.
NEAR TERM /THROUGH TONIGHT/
Latest surface analysis shows an old frontal boundary still well to the south of the area, that still extends from near Sapelo Island, GA to offshore. A stout anticyclone sits over near ArkLaTex currently, and will slowly move eastward today over the Deep South.
Finally, surface high Seasonable temperatures for July are expected on Wednesday as high pressure builds in from the north. As the high moves offshore later this week, increasing heat and humidity could lead to elevated heat indices developing by the weekend and into early next week. Diurnal coverage of showers and thunderstorms begin to increase this weekend.pressure centered just offshore of New England carries a broad influence all up and down the eastern seaboard.
This high pressure will control the local forecast through tonight, keeping a mostly dry regime. Some onshore movement likely keeps some stratocu near the coast this morning, and that may even allow an isolated shower or sprinkle to dot some of the coastal areas, particularly in Georgetown County. This cloud cover will keep highs in the upper 80s in the coastal regions. Meanwhile, inland areas will be a bit warmer today, with highs reaching the lower 90s. Heat indices thankfully avoid the triple digits today (don't you worry, it's coming...hope your AC is ready).
Tonight will see more widespread lows in the lower 70s. Some of the typical cool spots will dip down into the low-to-mid 60s.
SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/
The 500 mb subtropical ridge should be centered across Alabama on Thursday, moving to the Florida Panhandle on Friday. This continues a trend in the models that was noted yesterday moving the center of the ridge southward. While it's a subtle change, it does open the door for perhaps more coverage of thunderstorms on Friday.
Surface high pressure centered off the Mid Atlantic coast on Thursday should move farther offshore Friday. Southerly wind behind this departing high should lead to rising temperatures and dewpoints across the Carolinas. Thursday's inland highs should reach the mid 90s, with upper 90s expected on Friday as 850 mb temps rise to +21C. This is just above the 90th percentile value for early July. Combined with dewpoints poking into the mid 70s by Friday, it's likely we'll have heat indices high enough (105-109 F) to warrant a Heat Advisory for inland locations. South to southeast winds should keep coastal high temps both days ranging from the upper 80s to lower 90s.
Ridging should be strong enough Thursday to keep the atmosphere capped and stable. By Friday, the weakening ridge and continued increases in low level temperatures and dewpoints could allow some afternoon storms to pop inland. Friday's forecast PoPs range from 10 percent on the coast to around 30 percent west of I-95.
LONG TERM /SATURDAY THROUGH TUESDAY/
A cold front should cross the North Carolina mountains on Saturday, likely stalling across the central portions of the Carolinas through Sunday. The upper level ridge should remain centered just to our south, but enough southwesterly flow should occur between the ridge axis and a trough over the Great Lakes to advect any inland convection that develops along the front toward our area. Saturday's forecast PoPs range from 20 percent on the coast to 50 percent west of I-95. By Sunday convective potential grows larger near the coast from a combination of morning marine convection drifting onshore, plus afternoon inland storms moving eastward. Given large and growing 30 and 60 day rainfall deficits across the area, any rain is going to be good news.
Hot and humid conditions will persist with Saturday likely seeing a continued need for a Heat Advisory. Actual inland highs in the upper 90s will feel more like 105 when factoring in humidity. By Sunday temperatures may cool a few degrees given an increase in clouds and thunderstorm coverage.
Increased forecast uncertainty creeps in for Monday and Tuesday as models diverge with details of an upper trough digging across the northern Plains and Great Lakes, plus a cut off upper low that may retrograde between Bermuda and the Carolinas. The upper ridge just to south appears it will remain the dominant weather feature for us, but the old decaying front stalled inland and daily seabreezes/landbreezes should still be enough for scattered showers and thunderstorms. Inland highs poking back into the mid 90s plus humidity could approach Heat Advisory criteria again.
AVIATION /06Z WEDNESDAY THROUGH SUNDAY/
Predominant VFR expected through the 06Z TAF period. Onshore flow and low chances of showers have brought in some isolated MVFR ceilings near KCRE/KMYR. The coverage is sporadic, but if the ceilings do make it to these terminals, it will be brief in nature. Closer to 12Z, there's another chance for MVFR ceilings at all coastal terminals, but guidance is suggesting 3-4.5 kft at lowest. Meanwhile, inland terminals will see light and variable winds with clear skies, no fog expected at this time.
Any restrictions should clear up by Wednesday morning with VFR expected through the rest of the period.
Extended Outlook...VFR should dominate through the end of the work week. Slight chance of flight restrictions this weekend as chances for convection return.
MARINE
Through Tonight...E to ESE winds dominate at 10-15kts today, decreasing to 5-10kts by tonight. Seas come in at 1-3ft. Biggest story here is that swells from Major Hurricane Beryl arrive today.
Look for long period 1ft southeasterly swells at 15-17 seconds.
Other swell sets include a 2-3ft set out of the ENE at 5-7 seconds.
Thursday through Sunday Night...High pressure centered just off the Mid Atlantic coast Thursday will gradually move farther out to sea Friday through the weekend. This will provide a light generally southerly wind across the Carolinas. A cold front approaching the region from the west likely won't make it down to the coastline, stalling across the interior portions of the Carolinas Saturday and Sunday.
There should be an increasing potential for showers and thunderstorms across the coastal and offshore waters Saturday and Sunday. These won't be directly linked to afternoon and evening thunderstorms inland and should have coverage peaks during the overnight and morning hours, opposite of what we usually see inland.
Sea heights around 3 feet are expected through the period, enhanced Thursday and Thursday night by long period southeast swell that was produced several days ago by Hurricane Beryl. Now that Beryl is south of Hispaniola, this swell should end here Friday.
ILM WATCHES/WARNINGS/ADVISORIES
NC...None.
SC...None.
MARINE...None.
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KMYR
Terminal Aerodrome Forecast (TAF) for KMYR
toggle option: (graph/table)
Terminal Aerodrome Forecast (TAF) for KMYR
Wind History graph: MYR
(wind in knots)Myrtle Beach
Click for Map
Wed -- 12:17 AM EDT 0.25 feet Low Tide
Wed -- 03:39 AM EDT Moonrise
Wed -- 05:59 AM EDT 4.65 feet High Tide
Wed -- 06:09 AM EDT Sunrise
Wed -- 12:02 PM EDT -0.22 feet Low Tide
Wed -- 06:28 PM EDT 6.28 feet High Tide
Wed -- 06:50 PM EDT Moonset
Wed -- 08:29 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 12:17 AM EDT 0.25 feet Low Tide
Wed -- 03:39 AM EDT Moonrise
Wed -- 05:59 AM EDT 4.65 feet High Tide
Wed -- 06:09 AM EDT Sunrise
Wed -- 12:02 PM EDT -0.22 feet Low Tide
Wed -- 06:28 PM EDT 6.28 feet High Tide
Wed -- 06:50 PM EDT Moonset
Wed -- 08:29 PM EDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Myrtle Beach, South Carolina, Tide feet
| 12 am |
| 0.3 |
| 1 am |
| 0.4 |
| 2 am |
| 1.1 |
| 3 am |
| 2.2 |
| 4 am |
| 3.4 |
| 5 am |
| 4.3 |
| 6 am |
| 4.6 |
| 7 am |
| 4.3 |
| 8 am |
| 3.4 |
| 9 am |
| 2.2 |
| 10 am |
| 1 |
| 11 am |
| 0.1 |
| 12 pm |
| -0.2 |
| 1 pm |
| 0.1 |
| 2 pm |
| 1.1 |
| 3 pm |
| 2.6 |
| 4 pm |
| 4.2 |
| 5 pm |
| 5.5 |
| 6 pm |
| 6.2 |
| 7 pm |
| 6.2 |
| 8 pm |
| 5.5 |
| 9 pm |
| 4.3 |
| 10 pm |
| 2.9 |
| 11 pm |
| 1.6 |
Socastee Bridge
Click for Map
Wed -- 03:40 AM EDT Moonrise
Wed -- 05:24 AM EDT 0.23 feet Low Tide
Wed -- 06:10 AM EDT Sunrise
Wed -- 09:57 AM EDT 1.79 feet High Tide
Wed -- 05:21 PM EDT -0.17 feet Low Tide
Wed -- 06:50 PM EDT Moonset
Wed -- 08:30 PM EDT Sunset
Wed -- 10:32 PM EDT 2.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 03:40 AM EDT Moonrise
Wed -- 05:24 AM EDT 0.23 feet Low Tide
Wed -- 06:10 AM EDT Sunrise
Wed -- 09:57 AM EDT 1.79 feet High Tide
Wed -- 05:21 PM EDT -0.17 feet Low Tide
Wed -- 06:50 PM EDT Moonset
Wed -- 08:30 PM EDT Sunset
Wed -- 10:32 PM EDT 2.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Socastee Bridge, ICWW, South Carolina, Tide feet
| 12 am |
| 1.9 |
| 1 am |
| 1.6 |
| 2 am |
| 1.1 |
| 3 am |
| 0.7 |
| 4 am |
| 0.4 |
| 5 am |
| 0.3 |
| 6 am |
| 0.3 |
| 7 am |
| 0.7 |
| 8 am |
| 1.2 |
| 9 am |
| 1.6 |
| 10 am |
| 1.8 |
| 11 am |
| 1.7 |
| 12 pm |
| 1.5 |
| 1 pm |
| 1.1 |
| 2 pm |
| 0.7 |
| 3 pm |
| 0.4 |
| 4 pm |
| 0 |
| 5 pm |
| -0.2 |
| 6 pm |
| -0.1 |
| 7 pm |
| 0.5 |
| 8 pm |
| 1.2 |
| 9 pm |
| 1.9 |
| 10 pm |
| 2.3 |
| 11 pm |
| 2.4 |
Wilmington, NC,
NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE