Categorizing air masses is straightforward, using two letters to denote their humidity and temperature characteristics.

The weather systems dump huge quantities of rain on the U.S.—now experts have uncovered their effects on temperatures.

Researchers in Japan have demonstrated the high accuracy of their newly developed typhoon observation device that can be ...

"The tool calculates the number of hours each day when the relative humidity falls below 20%, a threshold signaling heightened fire risk due to low atmospheric moisture," said Crimmins. By ...