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January 21, 2011

Coldest temperatures of the season tonight

If the forecasters out at Sterling have it right, Central Maryland is looking at the coldest temperatures of the season tonight.

NOAA/NWSBWI-Marshall could see an overnight low of just 11 degrees by Saturday morning (map). That would beat the low of 16 degrees reached on Dec. 16. The high for Saturday would struggle for 24 degrees as arctic air continues to rush into the region behind Friday morning's exiting snowstorm.

Marylanders out in the western mountains will see lows near or below zero tonight, with wind chills of minus-5 to minus-15 degrees as winds rise to 20 or 30 mph, gusting to 40, forecasters warned. Wind Chill Advisories are posted for western Allegany County.

In Baltimore, local health officials have declared a Code Blue Health Alert through Sunday, extending hours in the city's shelters and sending outreacher workers to check on vulnerable residents.

The cold will stick around for at least the next week, although temperatures will moderate some along the way. Highs at BWI-Marshall Airport won't reach the freezing mark again until Tuesday, if the forecast holds up. Lows will rise out of the teens by Monday night. This is all far colder than the averages for this time of year. The average high for BWI is now 41 degrees; the low is 23.  

Posted by Frank Roylance at 12:51 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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