We’ll close September on a stormy note as moisture from Tropical Storm Imelda interacts with a stalled front/trough situated along the coast to produce solid shower and thunderstorm chances through Tuesday. From there, a good shot of fall welcomes us to October before more shower and storm chances return for Friday and the weekend.
Tropical Depression Nine continues to organize, moving NW at 5 MPH on approach to the Bahamas, where Tropical Storm Warnings are in effect. Nine is still expected to strengthen, becoming a tropical storm tonight or early tomorrow morning. The next name on the list is Imelda.
On the current forecast from the National Hurricane Center, future Imelda will continue to move north-northwest heading into Monday, gradually strengthening into a hurricane (albeit a low-end Category 1). From there, it will stall out somewhere off the GA/SC coast Monday night into Tuesday, meandering until Humberto — a category 5 beast well out in the central Atlantic — gets close enough to help weaken the blocking high pressure to the north and “pulls” presumed Imelda eastward, away from the continental US.
Sunday should feature another round of showers and storms, most likely in the afternoon, as a front in the vicinity starts to retrograde westward a bit courtesy of TD Nine (which should soon get the name Imelda; it hasn’t yet as of this writing). Temperatures will be near if not slightly cooler than normal once again Sunday with the prevalence of cloud cover (especially in the afternoon) and the slightly cooler and drier airmass behind the front. We start the day in the upper 60s in the metro to the low 70s at the coast, warming to the low to mid-80s in the afternoon before scattered showers and storms kick back up. From there, we will see several more days of inclement weather courtesy of the approaching tropical cyclone.
I’ll have a more detailed post specific to the tropics a little later this evening once we have the new track and intensity forecast in hand.