*Coastal flood advisory in effect for Washington until 6 p.m. Friday*
The big weather story will be happening about 400 miles south of here as Hurricane Florence slams into the Carolinas. And while Florence is no threat to us directly for now (see below for more details on that), we are still close enough for the storm to possibly brush us with showers Friday. In addition, persistent onshore (easterly) winds make minor coastal flooding a possibility all weekend in the tidal Potomac, while also keeping us locked in cloud cover with continual chances of showers and storms through at least Saturday.
Through Tonight: A chance of some isolated showers through the remainder of the evening hours. Remaining overcast with a chance of scattered showers overnight and a light east wind at 5-10 mph. Lows will range from the upper 60s to low 70s, with areas of patchy fog likely to develop after midnight.
View the current weather at The Washington Post.
Tomorrow (Friday): Some patchy fog early, then staying mostly cloudy and cooler. Winds could become a bit gusty (10-20 mph) out of the east at times tomorrow afternoon. Scattered showers and thunderstorms are likely to develop by tomorrow afternoon, especially along and east of Interstate 95. Some pockets of heavy rain are possible. Highs will be in the upper 70s, with dew points in the low 70s. Mostly cloudy with scattered showers tomorrow night. Lows range from the upper 60s to low 70s.
Watching Florence: Locally, we will need to keep an eye on what the remnants of Florence do once the storm makes landfall this weekend. Uncertainty remains high, but as of right now, model guidance is pointing toward two possible scenarios.
Scenario 1: The remnants of Florence pass through Tennessee and western North Carolina on Monday before getting picked up by an upper-level system that swings what’s left of the storm right through the D.C. area late Monday into Tuesday. This scenario would result in heavy rain, some severe weather and gusty winds (more than 30-40 mph). This scenario would increase the chances of flooding and tree damage, given how wet soil conditions are.
Scenario 2: The remnants of Florence pass through Tennessee and western Virginia on Monday before moving north into the Ohio River Valley late Monday. We would still probably see some rain and wind in this scenario, but the heaviest precipitation and strongest winds would be focused over the Appalachians.
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