The National Weather Service has issued a Winter Weather Advisory for the Annapolis area effective Sunday. A Winter Storm Warning is in effect for areas north and west of Baltimore & Washington.
Brian's exclusive forecast for Annapolis: Becoming cloudy on Sunday with snow developing, then changing to sleet and freezing rain during the afternoon. The snow may accumulate 1 to 2 inches. Colder with a high around 32. Northeast wind 10 to 15. Sleet and freezing rain changing to rain overnight. Temperatures rising slowly into the mid 30s. Mostly cloudy with occasional rain showers on Monday. Milder with a high in the lower 40s. Mostly cloudy with occasional rain or snow showers Monday night and a low in the lower 30s. Variable cloudiness on Tuesday with scattered snow flurries and a high in the mid 30s. The extended forecast calls for sunshine on Wednesday through Friday with lows in the upper 10s to lower 20s and highs in the upper 20s to lower 30s.
Cold high pressure over the region will shift to our northeast today. At the same time, an area of low pressure over the southern states will develop and move toward the area. Another area of low pressure may develop near the North Carolina coast. Moisture ahead of the first low will overrun the sub-freezing temperatures at the surface, causing widespread snow, sleet, and freezing rain to develop on Sunday. Cold air at the surface will be difficult to erode, and this will enable frozen precipitation to fall for a period of six to eight hours across the region. As the secondary low develops off the North Carolina coast, the easterly wind will be enhanced and warmer air aloft will aid in changing frozen precipitation to rain Sunday night into Monday morning. 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 (mostly west of Interstate 95.) At this time, the western shore north of Annapolis could receive an inch or so 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 west of Interstate 95 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 through Sunday afternoon. Winds on Sunday will come out of the northeast at 10 to 15 knots with gusts over 20 knots and waves from 1 to 3 feet. Visibility will be reduced in snow, sleet, freezing rain, and rain. Winds on Sunday night will come out of the north at 10 to 15 knots with waves 1 to 2 feet. Visibility will be reduced in freezing rain, rain and, fog. Winds on Monday will come out of the southwest at 10 to 15 knots with waves from 1 to 2 feet. Winds on Monday night will come out of the northwest at 10 to 15 knots with waves from 1 to 2 feet. 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 8 is 48 degrees and the average low is 30 degrees. The records at Baltimore on this date are 74 degrees in 1980 and 10 degrees in 1882. Today's sunrise will occur at 7:14 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.