It may seem that July has delivered an interminable run of humid days, with dew points holding at near tropical levels. It is true that this month has been a scorcher. Triple-digit heat indices have ...

Has it felt especially humid where you live this July? The month is almost over, and the stats are staggering: 18 Central and Eastern states — from Arkansas to New Jersey — and D.C. have experienced a ...

Ever notice how the base of a cloud is usually flat? There’s a reason for that. An invisible layer of the atmosphere on which clouds appear to “sit” is called the Lifting Condensation Level. As a ...