Frontal Boundary Dries Out North Shore, MS/AL Coasts

With the higher sun angle, cold fronts are no longer cold by the time they sag towards the Gulf South.  But they can bring drier air/lower humidity making it feel less awful.  However, dry air heats up more efficiently and it's often hotter behind these fronts in the drier air with sunshine.  

Look at how much lower (green map) the dew points are.  Pensacola & Mobile dropped into the 50s with even MSY falling to 69.  This morning our dew point was 80!  Ugh!  Well changes are coming that should mean less hot for the next several days.

A very broad upper trough over the Great Lakes has been settling southward forcing the upper heat dome farther down over the Gulf and Mexico.  With colder air aloft, combined with upper disturbances rotating down in a NW flow, we're seeing waves of strong T-Storms move our way.  A Severe T-Storm Watch is up till 6 PM for SW Louisiana.  Here's what concerns me. It appears storms are forming along that old frontal boundary. (yellow arrows)

SPC believes those storms to our west will weaken, but let's hope we will at least get in on some cooling rains.  As those storms passed Houston, 2-4" of rain fell in less than 2 hours resulting in lots of flooding.  That is happening just to our west.

Let's pay attention during the next couple of hours in case some of that flooding rainfall stalls over us.  The 7 day does have rain chances each day, otherwise fairly useless at this time of the year.  Finally...

There has been a flair up of T-Storms down over the southern Caribbean.  NHC isn't talking about it yet, probably because it is nearing the coast of Nicaragua.  Just shows you what is likely to happen this Hurricane Season.  Not there yesterday, but, buda boom over night it explodes.  Don't forget the FOX 8 annual Hurricane Special, Weathering The Storm is Thursday night at 6:30 PM. Stay tuned!