For much of Mississippi and northeast Louisiana, the National Weather Service has issued Head Advisories. Forecast heat index readings in these areas look to be right around, or slightly above 105 degrees.
Each Weather Forecasting Office has their own set of Heat Advisory criteria. To the south along the coast, that criteria is a little warmer, usually 108 degrees or higher. This is why southern locations are currently not in an active advisory as of this post. Regardless, stay well hydrated and wear loose fitting clothing!
…Hot and Humid conditions may lead to heat stress…
.A persistent ridge over the southeast has lead to a very moist
airmass. July heat combined with high humidity will cause heat
index values to reach 105 degrees or slightly higher today. The
chance of heat stress and heat related illness will be elevated