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Chesapeake Bay weather for December 15: Becoming sunny and windy

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Brian's exclusive forecast for Baltimore, Annapolis, and northern Delmarva:

Today: Becoming mostly sunny and windy at times with a high in the upper 30s to low 40s.

Tonight: Mostly clear and chilly with a low around 25.

Monday: Mostly sunny, but cold. The high will be in the lower to middle 30s.

Monday Night: Clear and cold with a low between 20 and 25 degrees.

Tuesday: Considerable cloudiness and milder with a high in the low 40s.

Wednesday: Becoming mostly sunny, breezy, and cooler with a high in the mid to upper 30s.

The extended outlook calls for a mostly sunny sky on Thursday with a low in the upper 20s and a high in the mid to upper 40s. Clouds and sun on Friday with a high in the mid 50s. Mostly cloudy on Saturday with a high in the low 60s.

A storm system brought rain and snow to the Middle Atlantic and New England states yesterday and overnight. The rain snow line rain through Washington, Baltimore, and Philadelphia with rain to the south and a burst of snow to the north. Eventually the rain/snow line moved north through Philadelphia and over New York City and coastal New England. Even eastern Massachusetts saw snow turn to a cold rain. At 7 a.m. this morning, the low is moving quickly out of New England where a wide range of snow totals has been recorded (although a bit less than was expected in some areas.) Accumulations were generally 2 to 4 inches along the coast and 4 to 8 inches inland. Today's weather will feature abundant sunshine in the Chesapeake area, although it will be chilly with a wind from the west that will occasionally gust over 25 miles per hour. High pressure will build over the region through Monday with lows tonight dipping into the 20s and highs on Monday only near the freezing point. On Tuesday, a cold front will sweep through the area with some clouds and perhaps a few snow flurries. This will be followed by a brief cold snap on Wednesday with highs only in the 30s. Later in the week, temperatures will moderate considerably: 40s on Thursday, 50s on Friday, and 60s on Saturday. As we move into next weekend, another cold front will approach the region along with the potential for storminess.

On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect through Monday afternoon. Winds today will come out of the west at 10 to 15 with gusts over 20 and waves from 1 to 3 feet. Winds tonight will come out of the west at 10 to 15 with gusts over 20 and waves from 1 to 3 feet. Winds on Monday will come out of the northwest at 10 to 15 with gusts over 20 and waves from 1 to 3 feet. Winds on Monday night will come out of the south at 5 to 10 knots with waves subsiding to one foot. Marine information is provided only as guidance. Boaters should always stay tuned to the latest forecasts and advisories from the National Weather Service.

The average high temperature for December 15 is 45 degrees and the average low is 28 degrees. The records at Baltimore on this date are 70 degrees in 1971 and 1920, and 6 degrees in 1962. Today's sunrise will occur at 7:19 and the sunset will occur at 4:44. Weather data courtesy of the National Weather Service. For more weather updates, please visit my Chesapeake Bay Weather page on Facebook, and if you're heading to Ocean City feel free to check out my Ocean City MD Weather page on Facebook. You can also follow me on Twitter @chesbayweather.



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