What is a high-frequency radar? High-frequency or HF radar is a shore-based remote ... By measuring the characteristics of the returning pulse we can map the speed and direction of the underlying ...

More: Farmers' Almanac winter forecast for 2024-25 in Michigan: Wet, snowy, frigid cold Michigan is among many states that ...

NOAA releases the weekend aurora borealis forecast for the US. Things are looking pretty good for the upper Midwest.