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April 27, 2010

Frost possible overnight, 80s by the weekend

That's April for you. Forecasters out at Sterling Tuesday night are warning residents across the northern tier of Maryland counties to expect frost overnight as skies clear at NOAAtemperatures dip into the upper 30s for only the seventh time this month. Western Maryland could see lows in the 20s.

Frost advisories were posted from Harford County west to Washington County. There were freeze warnings farther west in Allegany County. The Frost Advisories include Howard and Montgomery counties, but not Baltimore City or the southern portions of Baltimore County. They mean that sensitive outdoor plants may freeze if they're not covered.

The cold threat won't last long. Daytime highs will climb this week into the 70s, and to the 80s by the weekend, if the forecast holds up. We may even reach the upper 80s by Sunday or Monday. Overnight lows will rebound into the 60s by the weekend.

The warming trend comes courtesy of a building region of high pressure later this week. Once the center moves by and we get into a southwest or westerly flow around the backside of the clockwise circulation, temperatures will climb. The heat will likely break with a cold front Monday, accompanied by showers and thunderstorms.  

(NOAA Photo Library)

Posted by Frank Roylance at 9:48 PM | | 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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