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"Fine autumn weather"

That's what the folks out in Sterling are calling it - fine "autumn" weather. Clear, dry air beneath a big fat high-pressure system is bringing us sunny days and clear, starry, frosty nights this week. And we can expect it to continue into Saturday before a new low from the east begins to cloud things up and threaten some showers by Sunday.

In the meantime, we're beginning to catch the return, clockwise flow around this high. That will scoop warmer air from the Southeast and send it our way, raising daytime highs to the mid- to upper-70s Thursday and Friday. Getting married Saturday? The good weather should hold long enough to keep things pretty for you and your guests, though clouds will be moving in later in the day. The rain, at least, should hold off.

Nighttime lows will moderate, too. After several frosty mornings this week in the 30s, and even some 20s to the north and west of the urban corridor, we will see the last of the 30s tonight, with overnight lows in the 40s and 50s for later in the week.

One interesting phenomenon to watch in the next two days will be the Chesapeake bay breeze. As the land heats up under strong April sunshine, the air above it will warm, too, and start to rise. As it does, cooler air over the water will be drawn in to replace it. That will hold temperatures down along the Western Shore, in places like Annapolis and Baltimore, while inland communities like Westminster heat up. A similar setup will likely keep the beaches under onshore breezes, keeping them quite cool relative to inland Eastern Shore towns. 

 

 

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About Frank Roylance
Frank Roylance is a reporter for The Baltimore Sun. He came to Baltimore from New Bedford, Mass. in 1980 to join the old Evening Sun. He moved to the morning Sun when the papers merged in 1992, and has spent most of his time since covering science, including astronomy and the weather. One of The Baltimore Sun's first online Web logs, the Weather Blog debuted in October 2004. In June 2006 Frank also began writing comments on local weather and stargazing for The Baltimore Sun's print Weather Page.
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