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Chesapeake Bay weather for March 4: evening update

Scenes from the recent winter weather during the first week of March-slide0
Photo by Mark Wilson/Getty Images

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

National Weather Service forecast map
Map courtesy National Weather Service

Tonight: Variable cloudiness and very cold with a low from 15 to 20.

Wednesday: Mostly sunny and milder with a high around 40.

Wednesday Night: Mostly cloudy with a low in the upper 20s to lower 30s.

Thursday: Mostly cloudy with a slight chance of a rain or snow shower. The high will be in the lower 40s.

Thursday Night: Mostly cloudy with a slight chance of a rain or snow shower. The low will be in the lower to middle 30s.

The extended forecast calls for clouds and sun on Friday with a low in the lower to middle 30s and a high in the mid 40s. Mostly sunny on Saturday with a low in the lower 30s and a high in the upper 40s near the bay to mid 50s inland. Clouds and sun on Sunday with a low in the mid to upper 30s and a high in the upper 40s. Clouds and sun on Tuesday with a low in the mid 30s and a high in the mid 50s.

Baltimore set a record low this morning of 4 degrees, breaking a 141-year old record of 5 degrees. This record has been verified by the National Weather Service before becoming official. The fact that we could even come close to breaking such a long-standing record is indicative of the impressive cold of this air mass. Of course, the fresh snow and clear skies helped temperatures plummet across the region with widespread single digits and teens. Today's weather featured bright March sunshine, but the sun was deceptive as temperatures struggled to reach the upper 20s.

With a mostly clear sky, calm winds, and fresh snow on the ground, tonight's readings will fall back into the mid to upper 10s and perhaps a few isolated spots in the upper single digits (mainly north and west of Baltimore and Washington). More sunshine is expected on Wednesday with slightly milder readings as highs will reach the mid to upper 30s. Looking ahead, an area of low pressure is expected to develop along the southeast coast on Thursday and Friday. At the moment, computer forecast models are indicating that the low may brush the Middle Atlantic region with rain and/or snow showers; however, a significant storm is not anticipated. Regardless of what this particular system brings, the upcoming weekend will feature a return to more seasonal weather conditions with highs climbing back into the 40s. Next week's weather will begin with temperatures in the 40s and even some 50s, but another shot of cold air may bring winter back for another visit by the end of next week.

On the Maryland portion of Chesapeake Bay, no advisories are currently in effect. Winds on Tuesday night will come out of the northeast at 10 knots with waves around one foot. Winds on Wednesday will come out of the north at 10 knots with waves around one foot. Winds on Wednesday night will come out of the north at 10 to 15 knots with gusts over 20 and waves from 1 to 2 feet. Winds on Thursday will come out of the northeast at 10 to 15 knots with gusts over 20 and waves from 1 to 2 feet. 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 March 5 is 50 degrees and the average low is 30 degrees. The records at Baltimore on this date are 83 degrees in 1976, and 10 degrees in 1873. Today's sunrise will occur at 6:33 and the sunset will occur at 6:03. Weather data courtesy of the National Weather Service. For more weather updates, please visit my web site www.chesapeakebayweather.com, 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.