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Chesapeake Bay weather for December 27: sunny Saturday, rainy Sunday

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

Tonight: Mostly clear with a low in the upper 20s to lower 30s.

Saturday: Clouds and sun. Mild with a high around 55.

Saturday Night: Cloudy with scattered rain showers. Low around 40.

Sunday: Occasional rain and cooler with a high near 45.

Monday: Becoming mostly sunny with a high around 45.

The extended outlook calls for a mostly sunny sky on Tuesday with a low in the upper 20s and a high in the mid 30s. Mostly sunny on Wednesday with a low in the lower 20s and a high in the mid 30s. Mostly cloudy on Thursday with a chance of snow showers. The low will be in the upper 20s and the high will be in the mid 30s.

Today's weather featured abundant sunshine and mild temperatures. Morning lows were quite chilly with thermometer readings in the mid 20s from Baltimore to southern Maryland to the Tidewater area of Virginia, but readings climbed through the 30s and 40s during the late morning and afternoon hours. Highs reached the mid 40s to around 50 degrees with the coolest temperatures right along the shore of the bay where the cold waters impact the ambient temperature. High pressure over the southern states will continue to impact the Mid-Atlantic overnight with cold temperatures as readings will fall back to the upper 20s to lower 30s by Saturday morning. The center of high pressure will shift to our southeast on Saturday, and this will create a more southerly flow across the region. As a result, many locations around the bay will experience highs on Saturday in the 50s. Meanwhile, low pressure near the Gulf of Mexico will move northeast and produce widespread rain showers over the area through the day on Sunday. The precipitation will be all rain from beginning to end due to the lack of cold air in the northeast. Only places in the mountains to our west may see the rain mix with, or change to, snow before ending on Sunday. As we look ahead to next week, cold high pressure will dominate the weather map in the East and temperatures will turn colder with daytime highs all of next week only in the 30s.

On the Maryland portion of Chesapeake Bay, no advisories are currently in effect. Winds tonight will come out of the southwest at 10 knots with waves from 1 to 2 feet. Winds on Saturday will come out of the southwest at 10 knots with waves from 1 to 2 feet. Winds on Saturday night will come out of the south at 10 knots with waves around one foot. Winds on Sunday will come out of the northeast at 10 knots with waves around one foot. Visibility may be reduced in rain and fog on Sunday. Marine information is provided as general guidance. Boaters should always stay tuned to the latest forecasts and advisories from the National Weather Service.

The average high temperature for December 27 is 43 degrees and the average low is 26 degrees. The records at Baltimore on this date are 65 degrees in 1949 and 5 degrees in 1914. Today's sunrise will occur at 7:25 and the sunset will occur at 4:50. 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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