Weather Alert in Illinois
Flood Advisory issued August 19 at 2:35AM CDT until August 19 at 10:30AM CDT by NWS Chicago IL
AREAS AFFECTED: Cook, IL; DuPage, IL; Kane, IL; Will, IL
DESCRIPTION: * WHAT...Flooding caused by excessive rainfall continues. * WHERE...A portion of northeast Illinois, including the following counties, Cook, DuPage, Kane and Will. * WHEN...Until 1030 AM CDT Tuesday. * IMPACTS...Area rivers, streams, and creeks are rising or are above bankfull. Areas of poor drainage are likely flooded, including fields, parks, ditches, and low-lying intersections. * ADDITIONAL DETAILS... - At 233 AM CDT, Doppler radar and automated rain gauges indicate that between 2 and 5 inches of rain have fallen in the past 12 hours. The heaviest rain fell near the Interstate 80 corridor from Joliet to Lansing. Up to one additional inch may fall in showers and thunderstorms in the coming hours. This will only delay the speed at which flood waters recede. - Some locations that will experience flooding include... Chicago, Aurora, Joliet, Naperville, Cicero, Hammond, Bolingbrook, Orland Park, Tinley Park, Oak Lawn, Berwyn, Wheaton, Oak Park, Downers Grove, Elmhurst, Lombard, Carol Stream, Romeoville, Plainfield and Calumet City. - http://www.weather.gov/safety/flood
INSTRUCTION: A Flood Advisory means minor flooding along waterways and other poor drainage areas is imminent or may already be occurring. Persons in the advisory area should use caution and avoid flood waters.
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Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
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