NWS Lincoln upgrading Doppler radar in October
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[September 11, 2012]
The National Weather Service is
improving its Doppler radar serving central and southeast Illinois
by installing the latest dual polarization technology. This
technology will give forecasters better information about heavy
rainfall in flooding events, hail detection in thunderstorms, and
even recognize whether precipitation is in the form of rain, snow or
Installation will begin Oct. 1 and will last approximately 10 to 12
days. During the upgrade, adjacent National Weather Service, Air
Force and Federal Aviation Administration weather radars will
provide coverage in the event of precipitation or severe weather in
central and southeast Illinois. The National Weather Service office
in Lincoln will remain open and will continue to issue forecasts and
warnings during the upgrade.
"This radar upgrade will help us
provide better forecasts and warnings of flash floods and winter
precipitation for the residents of central and southeast Illinois,"
said Ernest Goetsch, meteorologist-in-charge of the National Weather
Service office in Lincoln.
Currently, National Weather Service Doppler radars provide
forecasters information on precipitation intensity and movement
(direction and speed). Dual polarization technology adds new
information about the size and shape of airborne objects, which will
improve estimates of how much rain is falling, improving flash flood
detection and warnings. During winter weather, dual polarization
radar can better infer the difference between rain, snow and ice,
which gives forecasters a much better idea of what type of
precipitation to expect at the ground.
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"This is the most significant upgrade to the nation's weather
radar network since Doppler radar was first installed in the early
1990s and is a significant step toward us becoming weather-ready,"
said Laura Furgione, acting director of the National Weather
Service. "Dual polarization technology provides significantly more
information and clearer pictures of current weather conditions,
helping National Weather Service meteorologists provide more
accurate and timely forecasts."
Installation of dual polarization technology in all 122 National
Weather Service radars is expected to be completed in 2013.
Thirty-eight other operational Doppler radar systems, owned by the
Air Force and Federal Aviation Administration, will also be
The National Weather Service is the primary source of weather
data, forecasts and warnings for the United States and its
territories. It operates the most advanced weather and flood warning
and forecast system in the world, helping to protect lives and
property and enhance the national economy. Working with partners,
the National Weather Service is building a weather-ready nation to
support community resilience in the face of increasing vulnerability
to extreme weather. For more information, visit the NWS online at
www.weather.gov and on
NOAA news release received from National Weather Service,