Baltimore

Baltimore Welcomes Cooler, Drier Weather, Coastal Flood Advisory for Annapolis Amid Onshore Flow

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Published on September 04, 2024
Baltimore Welcomes Cooler, Drier Weather, Coastal Flood Advisory for Annapolis Amid Onshore FlowSource: Paul Sableman from St. Louis, MO, CC BY 2.0, via Wikimedia Commons

Today, Baltimore residents can expect dry conditions and cooler weather, thanks to high pressure moving eastward from the western Great Lakes. By Thursday, the high pressure is expected to push offshore, maintaining low humidity and below-average temperatures for now. The National Weather Service Baltimore MD/Washington DC suggests the winds will shift to the East/Northeast, providing a cooler and less humid airmass with temperatures ranging in the mid-70s to around 80 degrees, an exception being the higher elevations which are likely to experience cooler temperatures in the 60s.

The calm spell, described by the National Weather Service as "quiescent and fall-like," will be interrupted later in the week as rain showers are expected to return late Friday. This is attributed to an area of low pressure moving up the coast and a cold front from the Ohio Valley. Thursday might see a slightly milder climate with a mix of clouds and sun, while increased moisture paves the way for more cloud development and warmer lows at night.

Mariners should anticipate continued northeast to east winds, with several maritime and coastal advisories in effect, including a Small Craft Advisory, as per the National Weather Service. Due to the air cooling below water temperatures, as the weekend comes to a close, Special Marine Warnings may be required for strong storms capable of producing significant wind gusts and lightning strikes over waters.

Tidal anomalies have been rising, pushing areas like Annapolis into a state deserving of a Coastal Flood Advisory, foreseeing minor flood-stage conditions. According to the National Weather Service, the persistent onshore flow will likely sustain elevated water levels, hinting at further risks of minor coastal flooding during high tides, mainly at sensitive locations.