The National Weather Service has issued a flash flood watch for our region.

Showers and some thunderstorms are expected to become more numerous today and continue tonight. A tropical airmass will support areas of very heavy rain, especially where showers and thunderstorms move over the same area. Rainfall amounts over 1 inch in an hour will be possible, and any training of heavy showers will lead to even higher amounts.

Excessive rainfall within a short period of time can lead to rapidly rising water and flash flooding, particularly in urban areas and along small creeks and streams.

The latest forecast:

Overnight: Showers likely and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Cloudy, with a low around 71. Southeast wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 78. Southeast wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. Low around 69. Southeast wind around 9 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Wednesday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. Patchy fog before 2pm. High near 77. Southeast wind around 7 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Wednesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rain. Low around 69. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday: A chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night: Partly cloudy, with a low around 66.

Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.

Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

Saturday: Mostly sunny, with a high near 82.

Saturday Night: Partly cloudy, with a low around 60.