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Chesapeake Bay weather for December 5: cloudy and warm Thursday with showers

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Brian's exclusive forecast for Annapolis: Cloudy today with areas of fog and mist. A slight chance of an afternoon shower. Warm with a high in the mid 60s. South wind 5 to 10. Cloudy tonight with areas of fog and mist. Rain showers likely after midnight. Mild with a low in the lower 50s. South wind around 10. Periods of rain on Friday with a high in the mid 50s. North wind around 10. Rain showers on Friday night and turning cooler with a low in the upper 30s. Morning showers on Saturday give way to clouds and sun during the day. The high will be in the lower 40s. Clear and colder Saturday night, then increasing clouds toward morning. The low will be in the upper 20s. Becoming cloudy on Sunday with snow changing to sleet and freezing rain. A high temperature of 32. Sleet and freezing rain on Sunday night, changing to rain from south to north. Temperatures hovering around 32 degrees. Rain showers on Monday with a high in the mid 40s. The extended outlook calls for sunshine on Tuesday with lows around 30 and highs around 35. Sunshine expected on Wednesday with a low around 20 and a high near 30.

A warm front will move from south to north across the bay region today. A mild, southerly flow is in place due to high pressure offshore. This has resulted in morning temperatures today and yesterday in the upper 40s to lower 50s. In addition, the moist, southerly flow has produced considerable cloudiness as well as areas of fog and mist. Once the warm front moves to our north, temperatures will surge into the 60s later today (the average high is in the upper 40s.) Meanwhile, a cold front will move from west to east on Friday and produce rain across the region From late Thursday night through early Saturday morning as low pressure develops along the front. Temperatures will gradually begin to cool from highs in the upper 60s today, around 60 on Friday, and into the lower 40s on Saturday. Cold high pressure builds into the Middle Atlantic region on Saturday night into Sunday morning, sending temperatures below freezing. At the same time, an area of low pressure over the southern states will develop and move toward the area. Moisture ahead of the low will overrun the sub-freezing temperatures at the surface, causing widespread snow, sleet, and freezing rain to develop on Sunday. The exact precipitation type, amount, and duration are yet to be determined, but a prolonged period of frozen precipitation is possible with significant icing in some areas by Sunday night. At this time, the western shore north of Annapolis could receive one inch of snow followed by several hours of sleet and then freezing rain before the precipitation changes to rain. Consequently, residents should prepare for the potential of power outages and dangerous driving conditions through Sunday evening.

On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect from 6 p.m. this evening through late tonight. Winds today will come out of the south at 5 to 10 with waves around one foot. Visibility may be reduced in fog and mist. Winds tonight will come out of the south at 10 to 15 with gusts over 20 and waves from 1 to 3 feet. Visibility may be reduced in fog and mist. Winds on Friday will shift to the north at 10 knots with waves from to 1 to 2 feet. Boaters should always stay tuned to the latest forecasts and advisories from the National Weather Service.

The average high temperature for December 5 is 49 degrees and the average low is 31 degrees. The records at Baltimore on this date are 75 degrees in 2001 and 16 degrees in 1966 and 1957. Today's sunrise will occur at 7:11 and the sunset will occur at 4:43. 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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