Brian's exclusive forecast for Baltimore, Annapolis, and northern Delmarva:
Today: Sunny, but unseasonably cold with a high around 15. Northwest wind 10 to 15 with gusts over 20. Wind chill values -5 to 5.
Tonight: Mostly clear and cold with a low from 3 to 8. Light and variable winds.
Thursday: Clouds and sun with a few snow showers or flurries. The high will be from 20 to 25.
Thursday Night: Variable cloudiness with a low from 8 to 13.
Friday: Mostly sunny with a high in the upper 10s to lower 20s.
The extended outlook calls for a mostly sunny sky on Saturday with a high around 32. Mostly sunny on Sunday with a low around 15 and a high near 32. Clouds and sun on Monday with a chance of afternoon & evening snow showers. The low will be around 20 and the high will be near 32. Clouds and sun on Tuesday with a low from 8 to 13 and a high from 18 to 23.
An arctic cold front moved across the bay yesterday and low pressure that developed along the front produced snow in the Middle Atlantic region. In the Tidewater area of Virginia, yesterday began with sunshine and temperatures near 60 in Norfolk and Virginia Beach. These same areas would see snow and temperatures in the 20s only 12 hours later. To the north, cold air was already in place across Baltimore and Annapolis when snow began to overspread the area. Although not a major winter storm, a spread of 4 to 6 inches of snow fell in central Maryland with more across the northern tier of the state. Gusty winds created near-blizzard conditions at times along with temperatures falling into the lower 20s. Precipitation came to an end late in the evening except on the lower Maryland Eastern Shore and Tidewater in Virginia where snow continued overnight. Today's temperatures are quite cold with readings in the single digits around Baltimore and Annapolis and low to mid teens to the south and east. Highs today will only reach the mid teens around Annapolis and upper teens in places like Easton, Cambridge, and Salisbury. The record minimum high temperatures in the region for January 22 includes 21 degrees at Washington and 19 at Baltimore, both of which are in jeopardy today. Cold high pressure will ensure another cold night with lows by Thursday morning in the single digits and highs on Thursday from the upper 10s to lower 20s. Meanwhile, a cold front will sweep through the area on Thursday with clouds and some snow showers or flurries. The front will bring a reinforcing shot of cold air to the Chesapeake region on Friday with highs likely remaining in the teens.
On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect until 6 p.m. this evening. Winds today will come out of the northwest at 10 to 20 knots with gusts over 30 knots and waves from 1 to 3 feet. Winds tonight will come out of the west at 10 to 15 knots with a few higher gusts in the evening. Winds will range from 1 to 2 feet. Winds on Thursday will come out of the west 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 January 21 is 41 degrees and the average low is 24 degrees. The records at Baltimore on this date are 66 degrees in 1921 and -6 degrees in 1985. Today's sunrise will occur at 7:22 and the sunset will occur at 5:14. 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.