Brian's exclusive forecast for Annapolis: Cloudy and mild with rain showers. Fog in some areas. Temperatures will remain steady or slowly fall through the lower and middle 50s. North wind around 10. Cloudy with rain showers tapering to occasional mist and drizzle overnight. Turning cooler with a low in the mid to upper 30s. North wind 10 to 15. Becoming mostly sunny from west to east on Saturday. Cooler with a high in the low 40s. Northwest wind 10 to 20 with gusts over 20. Clear and chilly Saturday night with a low in the upper 20s. Becoming cloudy on Sunday with snow developing during the afternoon. The snow will change to sleet and freezing rain. Snow may accumulate 1 to 2 inches north of Annapolis, 1" or less south and east of Annapolis. The high will be in the lower 30s. Sleet and freezing rain on Sunday night changing to rain. The temperature will slowly rise through the 30s. Cloudy on Monday with scattered rain showers and a high in the low 40s. Scattered rain and snow showers on Monday night with a low in the upper 20s. The extended outlook calls for sunshine on Tuesday through Thursday with lows each day in the upper 10s to lower 20s and highs each day in the upper 20s to lower 30s.
A cold front will move from west to east across Chesapeake Bay today. Low pressure along the front will produce periods of rain today and tonight. As the front pushes eastward, temperatures will remain steady and then begin to fall into the lower and middle 50s. As the front clears the area on Saturday, strong northwest winds will overspread the area and temperatures will return to more seasonal levels. 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 to two inches of snow followed by several hours of sleet and then freezing rain before the precipitation changes to rain. Areas to the south and east of Annapolis can expect a brief period of snow, sleet, and freezing rain before the precipitation changes to all rain. Residents on the western shore 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 until 1 p.m. this afternoon. A Small Craft Advisory in effect from late tonight through Saturday afternoon. Winds today will come out of the north at 10 to 15 knots with gusts over 20 and waves from 1 to 3 feet. Visibility may be reduced in rain and fog. Winds tonight will come out of the north at 10 to 15 knots with occasional gusts over 20 and waves from 1 to 3 feet. Winds on Saturday will come out of the north at 10 to 15 knots with gusts over 20 knots and waves from 1 to 3 feet. Visibility may be reduced in rain and fog. Marine information is provided only as guidance. Boaters should always stay tuned to the latest forecasts and advisories from the National Weather Service.
The average high temperature for December 6 is 48 degrees and the average low is 31 degrees. The records at Baltimore on this date are 77 degrees in 1998 (the all-time monthly high) and 13 degrees in 2002. Today's sunrise will occur at 7:12 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.