Brian's exclusive forecast for Annapolis: Varying amounts of clouds and sunshine today with widespread showers and thunderstorms. Some showers may be heavy at times. Windy and not as warm with a high in the mid to upper 70s. Evening showers give way to a mostly cloudy overnight. Becoming much cooler toward morning with a low in the mid 50s. On Tuesday, mornings clouds and sun transition to a mostly sunny and pleasant afternoon with a high in the upper 60s. It will be breezy at times from the northwest. Looking ahead, we can expect fair conditions through the week with lows in the low to mid 50s and highs in the upper 60s to lower 70s through Thursday.
A strong cold front is approaching the bay this morning. Moisture streaming northward in advance of the front will produce widespread rain showers and scattered thunderstorms across the region through this afternoon and evening. With the ground hardened by the recent dearth of rainfall, heavier showers may produce localized flooding. Current indications are that some areas may receive in excess of one inch of rainfall, or more, in a six-hour window Monday afternoon into Monday evening. Isolated thunderstorms may produce strong winds and heavy rain into the evening hours. In the wake of the front, much cooler and drier air will overspread the region on Tuesday and Wednesday with highs dropping into the upper 60s under a mostly sunny sky. Overnight lows will fall back into the low to mid 50s, with some upper 40s inland.
On the Maryland portion of Chesapeake Bay, a Small Craft Advisory is in effect through 6 p.m. this evening. Winds today will come out of the south/southwest at 10 to 20 knots with gusts over 30 knots and waves 3 to 5 feet. Winds tonight will shift to the north at 10 to 20 knots with waves of 2 to 3 feet. On Tuesday, winds will come out of the north at 5 to 15 knots with waves of 1 to 2 feet. Marine weather information is provided only as a guide. Boaters should always stay tuned to the latest forecasts and advisories from the National Weather Service.
The average high temperature for October 7 is 70 degrees and the average low is 49 degrees. The records at Baltimore on this date are 96 degrees in 1941 and 35 degrees in 2001. 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.