FXUS62 KCHS 301124 AFDCHS
Area Forecast Discussion National Weather Service Charleston SC 724 AM EDT Mon Mar 30 2026
.WHAT HAS CHANGED...
The Aviation Section has been updated for the 12Z TAF issuance. The Marine Section has been updated to remove a Small Craft Advisory across nearshore Georgia waters.
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.KEY MESSAGES...
- 1) Prevailing high pressure will yield minimal rain chances
through mid-week with above normal temperatures.
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.DISCUSSION...
KEY MESSAGE 1: Prevailing high pressure will yield minimal rain chances through mid-week with above normal temperatures.
Zonal flow early week will transition to a strengthening ridge pattern aloft, while sfc high pressure holds across the local area for much of the week. The pattern will support a warming trend as a result, with latest guidance supporting high temps in the low-mid 80s away from the coast (sea breeze influences) Tuesday through Thursday. Conditions are also expected to remain dry for a bulk of the week, although weak h5 vort energy could help produce light precip activity across the interior Wednesday afternoon.
A cold front could approach the region late in the week, bringing a higher potential for measurable rainfall this upcoming weekend.
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.AVIATION /12Z MONDAY THROUGH FRIDAY/...
VFR conditions will prevail at CHS/JZI/SAV terminals through 12Z Tuesday.
Extended Aviation Outlook: VFR conditions are expected at CHS/JZI/SAV terminals through mid-week. TEMPO flight restrictions possible at all terminals with daily showers and/or thunderstorms during the upcoming weekend.
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.MARINE...
Today and Tonight: High pressure will continue to dominate the weather pattern across the Southeast United States, favoring wind conditions well below Small Craft Advisory levels across local waters. However, lingering 5-7 ft seas will be slow to subside across outer Georgia waters, where a Small Craft Advisory remains in effect into Tuesday morning.
Extended Marine: High pressure will persist across the region through late week, supporting winds/seas that remain below Small Craft Advisory conditions. The exception will be across outer GA waters, where 6 ft seas could linger into mid morning hours Tuesday, then possibly rebuild to 6 ft again Thursday night into Friday as a front approaches the Southeast United States late week.
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.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None. SC...None. MARINE...Small Craft Advisory until 10 AM EDT Tuesday for AMZ374.
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