Abstract: Atmospheric ducts, formed by sharp refractive index gradients in the lower atmosphere, play a crucial role in signal propagation, particularly for next-generation communication systems ...

A powerful atmospheric river storm has killed at least six people in California. Evacuation orders are in effect for areas recently affected by wildfires due to increased flood and mudslide risks. An ...

A multi-day atmospheric river event soaking Southern California is expected to bring several inches of rain to many locations before skies begin to clear next week. Meteorologists expect two ...

There has been a lot of talk about the term “atmospheric river” in the last month or so. Some feel the term is now being overused or even misused. So what is an atmospheric river? The term first ...

SAN DIEGO (FOX 5/KUSI) — After a hot start to the week, we are prepping for a significant storm as models give us a better idea of what to expect. An atmospheric river will bring periods of heavy ...

SAN FRANCISCO - An atmospheric river is headed for the Bay Area, bringing heavy rainfall and strong winds beginning late Wednesday and lasting through early Friday. The storm system is expected to ...

The U.S. Mint struck the final 1-cent coin that will be used as legal tender on Wednesday, six months after the Trump administration announced that it would stop producing pennies because the cost of ...

A low-pressure system headed for Southern California is forecast to bring cooler temperatures and rain possibly starting Wednesday evening with the potential to last until Saturday, the National ...

After days of dry, warm weather in the Bay Area, an atmospheric river is expected to bring rain and wind to the region starting Wednesday. Roger Gass, a meteorologist with the National Weather Service ...