FXUS62 KCHS 132307 AFDCHS
Area Forecast Discussion National Weather Service Charleston SC 707 PM EDT Mon Apr 13 2026
.WHAT HAS CHANGED...
All sections have been updated.
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.KEY MESSAGES...
- 1) Dry weather and above-normal temperatures expected to
continue through the weekend.
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.DISCUSSION...
KEY MESSAGE 1: Dry weather and above-normal temperatures expected to continue through the weekend.
Overall, no significant change to the forecast thinking for the next 7 days. Prominent ridging aloft and subtropical high pressure at the surface will continue to yield a rain-free forecast with well-above normal temperatures across the region through the weekend. Temperatures will continue to trend upward, with widespread upper 80s and low 90s expected starting Wednesday. In fact, low to mid 90s are expected by Friday. High temperatures could start to come within a few degrees of daily record as early as Tuesday, but the best chances of reaching records will come late this week and into the weekend (see Climate section below). The combination of well above normal temperatures and no rainfall will only serve to further worsen ongoing Extreme (D3) drought conditions highlighted by the US Drought Monitor.
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.AVIATION /22Z MONDAY THROUGH SATURDAY/...
The 0Z TAFs will feature VFR conditions through much of the period. There is a potential for ground fog at KCHS and KJZI and MVFR fog at KSAV around sunrise Tuesday morning. The KSAV TAF will continue to highlight the fog potential with a TEMPO from 10-13Z. By Tuesday afternoon, guidance indicates that a sea breeze is expected to push across the terminals, following the sea breeze winds should shift from the south and increase to 10 to 15 kts.
Extended Aviation Outlook: VFR.
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.MARINE...
Through Saturday: Subtropical high pressure centered to the east will continue to drive persistent south to southwest flow across the local waters this week. Winds will mostly top out in the 10-15 knot range, with some daily local enhancement along the land/sea interface with the sea breeze circulation each afternoon and evening. Seas should stay within the 2-4 ft range through the period.
Rip Currents: A Moderate Risk of rip currents continues for the GA beaches through this evening. Tuesday is expected to bring a Low Risk at all beaches. For Wednesday, slightly higher swell and slightly stronger winds are expected to result in a Moderate Risk for the SC beaches. This Moderate Risk for Wednesday could expand to the GA beaches as conditions should be similar.
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.CLIMATE...
Record High Temperatures:
April 14: KSAV: 90/1922
April 16: KSAV: 92/1967
April 17: KCHS: 91/1967 KCXM: 86/2006 KSAV: 95/1967
April 18: KCHS: 92/1967 KSAV: 93/1967
April 19: KCHS: 91/1995 KCXM: 90/1917 KSAV: 92/1968
Record High Minimum Temperatures:
April 19: KCHS: 66/1975 KCXM: 70/2002 KSAV: 69/1880
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.CHS WATCHES/WARNINGS/ADVISORIES...
GA...None. SC...None. MARINE...None.
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