Sunrise 6:33 AM   Sunset 8:00 PM Moonrise 11:44 PM   Moonset 8:35 AM

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ANZ835 Cape Fear To 31n To 1000 Fm- 436 Am Edt Sun Apr 28 2024
Today - E winds 10 to 20 kt, becoming E to se 5 to 15 kt. Seas 4 to 8 ft. Tonight - S to se winds 5 to 15 kt. Seas 3 to 6 ft. Mon - S to sw winds 5 to 15 kt. Seas 3 to 5 ft. Mon night - S winds 10 to 15 kt. Seas 3 to 5 ft. Tue - S to sw winds 5 to 10 kt, becoming 5 to 15 kt. Seas 3 to 5 ft. Tue night - S to sw winds 10 to 15 kt. Seas 3 to 5 ft. Wed - SW winds 5 to 15 kt. Seas 3 to 4 ft. Wed night - S to sw winds less than 10 kt. Seas 3 to 4 ft. Thu - Variable winds less than 10 kt, becoming se. Seas 3 to 4 ft. Thu night - SE winds 5 to 15 kt. Seas 3 to 4 ft.

ANZ800 Gulf Of Maine To The Hague Line- 435 Am Edt Sun Apr 28 2024
Today - S to sw winds 5 to 15 kt, becoming S 10 to 20 kt. Seas 3 to 4 ft. Tonight - SW winds 10 to 20 kt, becoming N to nw. Seas 3 to 4 ft. Mon - N winds 10 to 20 kt, becoming N to nw 5 to 15 kt. Seas 3 to 5 ft. Mon night - N winds 5 to 15 kt, increasing to 10 to 20 kt. Seas 3 to 5 ft. Tue - N winds 5 to 15 kt, becoming variable. Seas 3 to 5 ft. Tue night - Variable winds less than 10 kt. Seas 3 to 4 ft. Wed - E to ne winds 5 to 15 kt, becoming ne. Seas 3 to 4 ft. Wed night - N winds less than 10 kt, increasing to 5 to 15 kt. Seas 3 to 4 ft. Thu - NE winds less than 10 kt, becoming variable. Seas 3 to 4 ft. Thu night - S winds 5 to 15 kt, becoming sw. Seas 3 to 4 ft.

FXUS62 KCHS 281045 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 645 AM EDT Sun Apr 28 2024

SYNOPSIS
High pressure will prevail through much of next week. A weak disturbance will move through late Tuesday. A weak cold front could approach next weekend.

NEAR TERM /THROUGH TONIGHT/
Today: Ridging will dominate both at the surface and aloft, and the associated subsidence and a dry layer from about 850 mb to 500 mb will result in a rainfree day. For most places this will be the 7th day in a row without rainfall. Cirrus will continue to stream through, while scattered to broken stratocumulus and flat cumulus will also occur, especially near and along the inland moving sea breeze. The sky condition will average out to be partly sunny. Max temperatures will be very similar to yesterday, and with little overall change in air mass,highs will be in the upper 70s and lower 80s away from the immediate coast.

Tonight: Ridging again prevails both at the surface and aloft.
Winds will decouple quickly this evening, with geostrophic winds at 1000 mb no more than 5 or 10 kt. With mainly just few- scattered cirrus for much of the night, this will set up good radiational cooling. We'll end up a bit cooler than it was early this morning, with actual min temperatures close to climo. There is still enough moisture in the boundary layer to produce some late night stratus/stratocumulus and maybe a little fog. Since the bulk of the guidance doesn't have any reduction in visibilities, there is no mention of fog in the forecast.

SHORT TERM /MONDAY THROUGH WEDNESDAY/
Deep layered ridging will persist on Monday with dry weather and a gradual warming trend. Highs should reach the lower 80s away from the coast, with upper 70s closer to the coast due to a persistent onshore flow.

A fairly strong upper shortwave will move into southern SC Tuesday afternoon, accompanied by a slug of moisture. Isolated showers and tstms are possible mainly in the afternoon.
Increasing thicknesses should yield highs in the mid 80s away from the coast.

There are some model differences with how quickly the shortwave moves off the coast Wednesday morning. Decent low-level convergence expected during the afternoon between prevailing weak NW flow and a developing sea breeze. Since some of the guidance is now showing convection on Wednesday, we penciled in a slight chance PoP inland. The warming trend will continue with highs climbing into the upper 80s.

LONG TERM /WEDNESDAY NIGHT THROUGH SATURDAY/
An upper ridge will expand over the area Wednesday night and Thursday, then a zonal flow will persist into the weekend. Above normal temperatures will prevail. A weak cold front could approach during the weekend, potentially bringing scattered showers and thunderstorms.

AVIATION /12Z SUNDAY THROUGH THURSDAY/
VFR conditions are expected to prevail at KCHS, KJZI, and KSAV through 12Z Monday.

All sites will experience broken 3500-4000 ft ceilings for a few hours this morning and early afternoon, before the sea breeze passes inland, and is followed by some gusts of 15 or 20 kt in its wake.

An onshore flow might generate some MVFR ceilings late tonight.
But the higher probabilities are inland, so no mention in the latest set of TAFs.

Extended Aviation Outlook: Prevailing VFR.

MARINE
Today: A 1027 mb high initially off the Delmarva and Outer Banks of North Carolina will sag south through the day, becoming more east-west oriented by late day, with the center about halfway bewteen Bermuda and the local waters. Winds through the day will be E or SE, no more than about 10 or 15 kt. The favorable onshore fetch will result in seas up to 6 feet on the outer Georgia waters, where we maintain Small Craft Advisory.
the nearshore waters will have seas of 3-5 feet.

Tonight: The high shifts a little further south, but maintains its hold on the coastal waters. The resulting gradient becomes quite slackened, and once sea breeze influences wane in the evening, SE winds will be only around 10 kt or less. Seas will be 3 to 5 feet, highest on the Georgia waters beyond 20 nm offshore.

Fairly quiet marine conditions expected Monday through Friday as Atlantic high pressure remains in place. Sustained winds will generally be no higher than 10-15 kt with seas no higher than 4 ft. A decent afternoon sea breeze is expected each day along the coast, with occasional gustiness in Charleston Harbor.

Rip Currents: Onshore winds and small swells will lead to a Moderate Risk of rip currents at all beaches today.

CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...Small Craft Advisory until 6 PM EDT this evening for AMZ374.

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