Rain, potential flooding Tuesday morning
Our wetter-than-average December will continue through Tuesday — another several inches of rain are expected during the day Tuesday as another system pushes through the area. There are some concerns on the timing of the system — we could yet again see heavy rain coinciding with a high tide in downtown Charleston tomorrow morning. (High tide occurs just after 7am.) Thus, a Flash Flood Watch is in effect for Charleston County — primarily targeted at those areas of downtown that flood — through the morning hours. If your commute takes you through downtown, be careful of areas of standing water and don’t attempt to drive through them.
We also have a shot at thunderstorms during the day; fortunately, conditions are not expected to be favorable for severe weather. Some severe weather, including tornadoes, has been observed in Georgia, but that activity is not expected to be a factor into the Charleston area. If conditions change, you’ll see an update on @chswx with further explanation here. Try to stay dry tomorrow!
Jared Smith 12:06 am on December 15, 2009 Permalink
Rain is taking hold throughout the Charleston metro — it will be with us for a day or so. Expect to hear some embedded rumbles of thunder, as well. Rainfall rates are heaviest further south into Beaufort and Jasper counties; locally heavy rainfall is possible through tonight and tomorrow morning. Given that an inch or two of rain overnight is not out of the question, flooding problems may start downtown well before high tide.
Jared Smith 12:35 am on December 15, 2009 Permalink
Fully expecting to see at least a flood advisory go up for low-lying and poor drainage areas soon — rainfall has been steady over the past hour with decent RADAR-estimated rates of up to 8 tenths of an inch per hour in some spots, including West Ashley. The more impressive rainfall rates are south of here and offshore; seeing estimations near 2″ per hour on a line between Beaufort and Hilton Head Island.