Rain risk continues through Monday
With warm, humid winds continuing to flow out of the south and southeast, Central Maryland is expected to remain in a period of persistent rain threats through Monday, as a series of disturbances set off scattered showers and storms. The best chances are focused on the period from tonight through Friday.
The National Weather Service regional forecast office in Sterling, Va. says Thursday will be the hottest day of the period, with forecast highs near 90. Rain chances are put at 40 percent today, rising to 50 percent tonight and 60 percent on Friday (map). As much as a quarter inch is possible Friday, with more in thunderstorms.
So we can look forward to periods of sunshine, followed by showers and storms, most likely in the afternoon and evening. Some may produce localized heavy rain and flash flooding. Daytime highs will be in the upper 80s at BWI-Marshall Airport.
The next cold front, arriving late Sunday into Monday, should clear the air and deliver a couple of days of sunny skies and seasonable temperatures.
In the meantime, Central Maryland is under a Code Orange Air Quality Alert through Thursday. So breathe as little as possible if you go outdoors.
Recent rains have sharply reduced the percentage of Maryland experiencing "Moderate" drought conditions, from 84 percent to just under 18 percent, according to the new Drought Monitor Map released this morning. But the portion still rated as "Abnormally dry," which includes the Baltimore metro area, was put at 91 percent, down only slightly from last week's 95 percent.