National Weather Service United States Department of Commerce

Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Miami

Center Weather Service Unit

ZMA: About CWSU ZMA

Weather.gov > Miami > ZMA: About CWSU ZMA
FAA ARTCC Building, Miami, Florida
Photo of FAA ARTCC Building Where the Miami CWSU Is Located
 
   Center Weather Service Units (CWSUs) are joint Federal Aviation Administration/National Weather Service weather support units staffed 16 hours/day by NWS personnel and 24 hours/day by Traffic Management Unit personnel to provide meteorological support to 21 Air Traffic Control facilities within the United States. Here at "Miami Center" our job is to forecast for potentially hazardous weather that may adversely affect the safe flow of air traffic within Miami's airspace [HI Sectors / Low Sectors]. We give all pertinent information to the facility's Traffic Management Unit which works directly with Air Traffic Controllers to move aircraft around threatening weather.

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