Brian's exclusive forecast for Baltimore, Annapolis, and northern Delmarva:
Today: Mostly sunny and pleasant with a high in the mid 50s inland, near 50 by the bay shore.
Tonight: Variable cloudiness with rain showers after midnight. Low around 40.
Tuesday: Morning rain showers, then partial clearing late. High around 50.
Tuesday Night: Variable cloudiness with a low in the mid 30s.
Wednesday: A chance of mixed rain and snow showers. High around 40.
The extended outlook calls for a mostly sunny sky on Thursday, Friday, and Saturday. On Thursday, lows will be in the low 30s and highs will be in the upper 30s. On Friday, lows will be in the low 30s and highs will be in the mid 40s. On Saturday, lows will be in the low 30s and highs will be in the upper 30s.
The day began with widespread frost and freezing temperatures that created a soft mist rising slowly from the water. Lows dipped into the mid to upper 20s to the north and low to mid 30s to the south. In some places, the freeze last night produced a thin covering of ice on smaller rivers and creeks. High pressure will move off the coast today, but will continue to provide the region with sunshine and mild temperatures as the winds shift to the south around the center of high pressure. In fact, the mercury on Monday will reach the 50s at most locations except upper 40s right along the bay shore where cold water temperatures may hold readings down a bit lower than areas inland. Meanwhile, a cold front will approach from the west tonight and Tuesday. Rain will develop over the region in advance of the front. A secondary cold front will quickly follow the first frontal passage and should cross the area on Wednesday. Precipitation associated with the front may fall in the form of rain and snow showers in Washington, Annapolis, and Baltimore. A brief period of snow may coat unpaved surfaces, but temperatures should keep accumulations to a minimum. As the secondary front clears the area on Wednesday afternoon, sunny weather returns to the Middle Atlantic states on Thursday and Friday. Colder temperatures are expected to overspread the area by the weekend.
On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect for Monday afternoon and evening. Winds on Monday will come out of the south at 10 to 15 knots with gusts over 20 knots and waves from 1 to 3 feet. Winds on Monday night will come out of the south at 10 to 15 knots with waves from 1 to 2 feet. Visibility may be reduced in rain and fog. Winds on Tuesday will come out of the southwest at 10 to 15 knots with waves from 1 to 2 feet. Visibility may be reduced in rain and fog. 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 January 13 is 41 degrees and the average low is 24 degrees. The records at Baltimore on this date are 76 degrees in 1932 and 11 degrees in 1912. Today's sunrise will occur at 7:25 and the sunset will occur at 5:05. 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.