Weather warnings and advisories

alert issued by a meteorological agency to warn citizens of approaching dangerous weather

two levels of alert issued to areas threatened by the approach of a tropical cyclone

thumb|A map from the U.S. National Weather Service showing active SIGMETs

BBC radio maritime weather report

24-hour network of VHF FM weather radio stations in the United States

weather alerts in Hong Kong

thumb|Graphical AIRMET showing turbulence high (TurbHi), turbulence low (TurbLo), surface wind (sfcWind), and low-level wind shear (LLWS) over the coterminous United States

Japanese Early Warning system

meteorological warning about a coming storm