Eyes on Isaac...
For the first time in over a week we are going to see some raindrops around here. A coldfront is working in from the west and it's pretty active with showers and some embedded thunderstorms. The timing of the front has it moving through by late morning so the wettest part of the day will be in the morning. But, a mid-level vort max will slide through in the afternoon in the wake of the coldfront, that, along with afternoon sunshine will lead to another storm or two possibly in the afternoon. Regardless, the air will start drying out on NW winds leading to increasing amounts of sunshine and a much better afternoon than morning.
The air will continue to dry out on Wednesday with an early Fall feel expected...70s, sunny and breezy...a gem. It only lasts one day as the heat will be returning over the second half of the week. Temps work into the 80s on Thursday and 90+ on Friday with both days featuring lots of sunshine.
The holiday weekend at the moment looks great. Another coldfront pass through on Saturday...out ahead of it temps will climb to the upper 80s before backing off to a 75-80 degree range for Sunday and Monday. The front appears to be fairly dry with only a chance of showers and storms Saturday afternoon or evening. The front is expected to get far enough south of us for ample sun the rest of the holiday weekend. The only potential fly in the ointment could be the remnants of Isaac. At this time all indications are for the lingering moisture to stay south of us.
At the time of this writing, Isaac is still a Tropical Storm, but just barely. Winds are at 70mph and there is a very good chance it becomes a hurricane by morning. It is also slowly working to the NW and the Louisiana / Mississippi coastlines. New Orleans appears to be in the crosshairs. Storm surge along with 10-15 inches of rain will likely lead to moderate or major flooding. Winds at time of landfall will likely be around 100mph.
