I hope you have enjoyed the low humidity and dry conditions. Big changes are on the way and it is all thanks to Tropical Storm Harvey. Harvey has produced as much as nearly 52 inches of rain near Houston, Texas over the past four or five days. It makes Harvey the wettest tropical system to ever impact the continental U.S. on record. Catastrophic flooding continues for Houston and the surrounding communities. The good news is that Harvey will finally start to push to the northeast and away from Texas. The bad news is that it’ll make the rest of our week unsettled with good rain chances and even the chance to see some thunderstorms. We aren’t expecting to see flooding, but the rain that falls will be tropical and could be heavy. I’ll break down what you can expect over the next couple of days in this post.
Tonight: mostly cloudy with a 20% chance for a few isolated showers. East winds at 5 mph. Low near 68°F.
Wednesday: mostly cloudy with a 80% chance for scattered showers and a few thunderstorms. East winds at 5-10 mph. High near 74°F.
Wednesday Night: mostly cloudy with a 40% chance for scattered showers. Low near 67°F.
Thursday: mostly cloudy with a 50% chance for scattered showers and storms. A few storms could be strong. West-southwest winds at 5-10 mph. High near 84°F.
Update on Tropical Storm Harvey
Harvey has emerged over the open waters of the Gulf of Mexico. It slowly strengthened to a 50 mph storm with a pressure of 994 mb at 5 p.m. EDT on August 29, 2017. It will push off towards the northeast and make landfall in Louisiana tomorrow. It’ll hopefully accelerate and push off into Arkansas, Tennessee, and Kentucky by Thursday and Friday. At that point, Harvey will no longer be tropical and act more like an area of low pressure associated with a cold front. Whatever is left of Harvey will enhance our rain chances for the rest of the week.
Moisture ahead of Harvey will travel towards the northeast tonight and tomorrow. As it does, rain chances will go up for Athens and Atlanta in the afternoon and evening hours. A few thunderstorms can’t be ruled out, but I think we’ll remain stable as the dry air erodes and warm, muggy air increases across the region. Some of the rain could be heavy at times. Rain will be possible at any point during the day, but appears most likely after 2 p.m. EDT. With clouds and rain likely, temperatures will remain well below average. We’ll likely see highs only climbing into the mid 70s.
The air will be muggy and temperatures will likely warm up into the low to mid 80s Thursday afternoon. As Harvey travels further north and east into Louisiana and Arkansas, it’ll act like a cold front. It’ll continue to bring more moisture from the Gulf of Mexico into our area.
With instability in place and a little wind shear, we can’t rule out the chance for a few strong storms, especially in West Georgia where the dynamics are a little higher since they are closer to Harvey. We’ll have to look for a few cells possibly rotating. If they rotate, an isolated tornado can’t be ruled out. Severe threat appears low and likely to our west, but we can’t rule it out.
Weather Video of the Day
The damage and flooding across Houston, Texas is simply insane. The weather models got it right, but it was still difficult to comprehend. This footage shows the extent of the flood waters in Texas.