Tuesday Blog: Dry Air Keeps Rain Away / Tropical Depression Nine

 Have to tell you -- waking up and walking outdoors the past couple of mornings has been a treat for the month of August.  Dewpoints have fallen into the 60s behind Sunday's late night cold front (even into the upper 50s briefly this morning) allowing for overnight lows to fall into the upper 60s to low 70s in the Brazos Valley.  Enjoy it for what it is -- if we clear out high to mid-level cloudiness tonight, we'll have the chance to reach the upper 60s across a good portion of the area on Wednesday morning before we start bringing moisture back into the picture.

Trade off: Comfortable Temperatures or Rain?

You have to take the good with the bad.  An upper-level disturbance is moving through the Northern and Central parts of Texas today -- skirting right past the Brazos Valley.  This disturbance brought 60mph - 80mph winds last night around Amarillo as thunderstorms blew through the Panhandle and continue to slowly fall apart as it continues it's journey to the southeast.  

If you watch the radar closely, you'll see rain near our northern counties, but due to the dry air on hand, any shower activity quickly falls apart before reaching Milam, Robertson or Leon Counties.  We'll continue to leave a 20% chance of a stray shower this morning, followed by a 20% chance at an isolated thunderstorm this afternoon -- however, it is likely that many, if not all, of us will stay dry today.

While the rain doesn't look likely, high to mid-level cloudiness will muddle up the sky from time to time throughout the day.  No worries -- for those looking to get the last bit of summer in before the school year begins, we'll be back to mostly sunny, mid-90s by Wednesday afternoon.

Tropical Depression Nine  (Soon to be Tropical Storm Isaac?)

The National Hurricane Center (NHC) named Tropical Depression Nine early this morning as the disturbance out in the Atlantic has taken on better shape, pressure and wind speeds recently.  

The first official forecast path turns this depression into Tropical Storm Isaac, possibly as early as this afternoon.  From there, there is some indication by long range computer models that this could strengthen to a Category 2 Hurricane by this upcoming Sunday as it nears Cuba.  You'll likely hear more on this "possible Isaac" as 5 day forecast cone then suggests movement towards the Florida Coastline.











All that being said, there will likely be many changes in this forecast path due to the large amount of land that this system is subject to interact with.  The official NHC path will move this storm past Puerto Rico, Dominican Republic, Haiti, Jamaica and eventually Cuba.  Tropical systems tend to get a little screwy when they near land masses -- so, we'll have to watch this one closely as intensity and directional changes occur through the week and on into the weekend. 


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