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September 15, 2009

Enjoy today; clouds, rain on the way

Chesapeake Bay/NASA GSFC/NOAA/DNRThe clouds are closing in, bringing what forecasters say will be several days of likely rain for the region. So today's delightful late-summer forecast of sunshine and blue skies may be the last we see until Sunday.

For now, we're under the influence of a big high pressure system over Eastern Canada. But there is a cold front approaching from the north, and that will bring a gradually increasing cloud cover with more easterly winds late today, and eventually rain. Forecast rain chances climb to 70 percent in the next few days as lows moving along the stalled front drag in more moisture from the ocean and the Gulf.

BWI-Marshall has had almost 2 inches of rain so far in September, just about normal for the month to date.

There is no change yet in the forecast for the beaches, and tonight's planned launch of a 65-foot Black Brant XII rocket from the NASA Wallops Flight facility on Virginia's Eastern Shore. Scientists plan to release a high-altitude cloud of aluminum particles that may be visible from much of the mid-Atlantic region.

The launch window opens at 7:40 p.m. and closes at 7:57. Forecasters gave the launch a 60 percent chance of favorable weather. There's more on the event in the previous post.

Here is the Wallops forecast. Looks a lot like ours.

Posted by Frank Roylance at 8:02 AM | | Comments (0)
Categories: Forecasts

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About Frank Roylance
This site is the Maryland Weather archive. The current Maryland Weather blog can be found here.
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. Frank also answers readers’ weather queries for the newspaper and the blog. Frank Roylance retired in October 2011. Maryland Weather is now being updated by members of The Baltimore Sun staff

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