Charleston Weather Blog

Forecast explanations, atmospheric science, and other cool weather-related stuff for Charleston, SC

Tuesday’s forecast: A little “cooler”, still some PM storms

/ at 10:59 PM

We start August with a relatively “cool” day, at least in contrast to that second half of July we just had, anyway. We start the day in the low 70s before temperatures head to the upper 80s in the afternoon. A little drier air will be mixing in, but it’ll still be humid enough to get heat indices into the mid-90s. Still, though, this is what passes for improvement at this time of year.

A few thunderstorms will be possible in the afternoon, though we shouldn’t see the high coverage that we’ve seen the past two nights. The risk for severe weather is a little lower, too.

The main fly in the ointment on Tuesday evening will be tidal flooding; high tide around 8:43 PM should top out around 7.3-7.5′ in the harbor, producing minor to moderate coastal flooding and likely causing some road closures, which were observed with Monday evening’s 7.52′ high tide. Be ready to route around flooding if you have plans downtown Tuesday evening.

The week ahead: Unsettled start followed by a brief “cooldown”

/ July 30, 2023 at 11:15 PM

The week ahead starts out unsettled as a front meanders in the area before we “cool off” a bit heading into mid-week as the aforementioned front pushes south, ushering in a slightly cooler and drier airmass. Ridging then builds back in to warm us up later in the week.

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