National Weather Service United States Department of Commerce

Severe Thunderstorms and Excessive Rainfall in the Mid-Atlantic; Heat and Fire Weather Concerns in the West

Scattered strong to severe storms, excessive rainfall, and flooding are expected across parts of the Mid-Atlantic into the Northeast today. Flood Watches are in effect. Heat will continue to impact the West today. Heat advisories are in effect for portions of the Intermountain West; and Extreme Heat Warnings are in effect for portions of Arizona and southeast California. Read More >

Automated Surface Observing Systems (ASOS)

 

Picture of an ASOS station

 

The ASOS program is a joint effort of the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the Department of Defense (DoD). The ASOS systems serves as the nation’s primary surface weather observing network. ASOS is designed to support weather forecast activities and aviation operations and, at the same time, support the needs of the meteorological, hydrological,and climatological research communities. For complete details on the ASOS program, click here.


Our Electronic Systems Analyst and Electronic Technicians responsible for ASOS equipment maintenance.

 
To view current observations from the ASOS equipment (and buoys) in our County Warning Area, click here. This equipment provides information on the following basic weather elements:
  • Sky condition:cloud height and amount (clear, scattered, broken, overcast) up to 12,000 feet   
  • Visibility (to at least 10 statute miles)
  • Basic present weather information: type and intensity for rain, snow, and freezing rain
  • Obstructions to vision: fog, haze
  • Pressure: sea-level pressure, altimeter setting
  • Ambient temperature, dew point temperature
  • Wind: direction, speed and character (gusts, squalls)
  • Precipitation accumulation

CLICK HERE to go to the next tour (Radar)